Carrying device for subway construction

Abstract

A carrying device for subway construction relates to the technical field of subways and comprises two parallel slide rails, a bearing seat is arranged at the bottoms of the slide rails, the bearing seat is clamped on a step, a center plate is arranged between the two slide rails, a carrying vehicle is in sliding fit with the two slide rails, the carrying vehicle is connected with a traction rope, and the traction rope is connected with the bearing seat. An elastic bearing block is placed on the step, and the center plate downwards presses the inclined face of the elastic bearing block and enables the elastic bearing block to elastically deform. The bearing seat can adapt to stairs with different gradients by replacing different wedge-shaped blocks and utilizing cooperation of a pressure sensor and an adjusting knob, and the problems that in the prior art, the gradient of a track of carrying equipment is fixed, and adaptability is poor are solved. The air cushion carrying assembly is adopted in the carrying vehicle, the air cushion carrying assembly and the center plate are in a suspension state in the carrying process, bumping and impact are greatly reduced, and carrying stability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of subways, and more particularly, to a handling device for subway construction. Background Art

[0002] As an important underground public transportation system, during the construction and operation of the subway, some equipment such as security inspection machines are not only huge in volume but also astonishingly heavy. For example, the weight of a common security inspection machine can reach 2.1 tons. The handling of such heavy equipment on complex terrains such as stairs often requires multiple workers to cooperate, which not only has extremely high labor intensity, low efficiency, but also poses certain safety risks.

[0003] Chinese Patent CN220466591 U discloses a subway construction handling device, which consists of a number of spliceable bases to form a basic support platform, on which a slidable handling platform is arranged for carrying the equipment to be handled. The handling platform is connected to a winding roller through a traction chain, forming an efficient traction mechanism. In the prior art, there is also a support structure for constructing a similar base by stacking steel plates, and its purpose is also to ensure that the handling platform can maintain stability during the sliding process, reducing bumps and impacts.

[0004] However, the track slope formed by the spliceable bases of this handling device is fixed and lacks the ability to be flexibly adjusted. This means that when facing stairs with different slopes, this device cannot be directly adapted and must be customized with a matching track slope, which undoubtedly increases the complexity and cost of use. In practical applications, the subway construction environment is complex and changeable, and the stair slopes often vary due to design requirements or on-site conditions. Therefore, the practicality of this handling device with a fixed slope is greatly reduced and it is difficult to meet the diverse construction needs. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems raised in the above background art, and then propose a handling device for subway construction.

[0006] The technical solution adopted by the present invention to solve its technical problems is:

[0007] A handling device for subway construction, installed on the steps of the stairs, includes two parallel slide rails. A supporting seat is provided at the bottom of the slide rail, and the supporting seat is clamped on the steps. A central plate is arranged between the two slide rails. A handling cart is slidably matched on the two slide rails. The handling cart is connected with a traction rope. Elastic supporting blocks are placed on the steps, and the central plate presses down on the inclined surface of the elastic supporting blocks, causing the elastic supporting blocks to undergo elastic deformation.

[0008] Further, the supporting seat includes a horizontal plate and a vertical plate, the horizontal plate and the vertical plate are connected together, a central hole is provided at the junction of the horizontal plate and the vertical plate, a support rod is installed in the central hole, slots are provided on both sides of the horizontal plate, a mounting plate is provided at the end of the horizontal plate, a first threaded hole is provided in the middle of the mounting plate, wedge blocks are inserted into the two slots, and a first screw rod is threadedly connected in the first threaded hole.

[0009] Further, the wedge block is provided with side insertion blocks that cooperate with the slots.

[0010] Further, when a slide rail is clamped on the supporting seat, the rotation of the first screw rod can cause the end of the wedge block to be inserted into the gap between the horizontal plate and the slide rail.

[0011] Further, a plug hole is provided at the bottom of the vertical plate, a plug board is inserted into the plug hole, a pressure sensor is installed on the plug board, and an adjusting knob is threadedly connected to the vertical plate. The adjusting knob can fix the plug board in the plug hole.

[0012] Further, the pressure sensor abuts against the vertical surface of the step.

[0013] Further, a fixing sleeve is provided on the plug board, a spring is provided in the fixing sleeve, and a pressure sensor is installed on the spring.

[0014] Further, the transporter includes a handling bottom plate, handling vertical baffles are provided on the handling bottom plate, rectangular mating grooves are provided on both sides of the bottom of the handling bottom plate, the rectangular mating grooves cooperate with the slide rails, a lower plate is provided at the bottom of the handling bottom plate, and an air cushion handling assembly is installed on the lower plate.

[0015] Further, a central plate is clamped on the support rod, a number of first clamping grooves are formed at the bottom of the slide rail and cooperate with the support rod, and a number of second clamping grooves are formed on the central plate and cooperate with the support rod.

[0016] Furthermore, the carrier vehicle includes a carrying bottom plate, on which there are vertical carrying baffles. On both sides of the bottom of the carrying bottom plate, there is a rectangular fitting groove each, which is matched with the slide rail. At the bottom of the carrying bottom plate, there is an air-cushion carrying assembly. At the bottom of the vertical carrying baffle, there is a first hinge seat, and a set of air-cushion carrying assemblies are rotatably connected to the first hinge seat. On the carrying bottom plate, there is a limiting block, which is directly above this set of air-cushion carrying assemblies. On the left side of the vertical carrying baffle, there is a second hinge seat, and a front plate is rotatably connected to the second hinge seat. At the bottom of the front plate, there is a set of air-cushion carrying assemblies. On the front plate, there is a third hinge seat, and on the vertical carrying baffle, there is a fourth hinge seat. An electric cylinder is installed between the third hinge seat and the fourth hinge seat, and the electric cylinder can make the front plate rotate around the second hinge seat. There is a through hole on the front plate, and a screw rod is installed in the through hole. At the lower end of the screw rod, there is a abutting plate. The screw rod is threadedly connected with a first nut and a second nut, and the first nut and the second nut are respectively on both sides of the front plate.

[0017] Furthermore, when the front plate is parallel to the carrying bottom plate, the abutting plate abuts against the top of the air-cushion carrying assembly connected to the first hinge seat.

[0018] Furthermore, a limiting mechanism is provided on the carrier vehicle. The limiting mechanism includes a first installation groove, a second installation groove, a third installation groove and a fourth installation groove provided on the carrying bottom plate. A set of bidirectional moving components are installed in each of the first installation groove and the second installation groove. The bidirectional moving component includes a central shaft. There are a plurality of first bearing seats in the first installation groove, and the central shaft is installed on the first bearing seats. One end of the central shaft is connected with a clockwise threaded rod through a coupling, and the other end of the central shaft is connected with a counterclockwise threaded rod through a coupling. The other end of the clockwise threaded rod is rotatably connected to the left end of the first installation groove, and the other end of the counterclockwise threaded rod is rotatably connected to the right end of the first installation groove. The first installation groove and the second installation groove are connected through the third installation groove. There is a belt pulley on the central shaft, and the two belt pulleys are driven and connected through a synchronous belt. The synchronous belt is in the third installation groove. A clamping plate is slidably fitted on both the clockwise threaded rod and the counterclockwise threaded rod, and the clamping plate can slide along the inner wall of the first installation groove. When the central shaft rotates, the two clamping plates can approach or move away from each other. The fourth installation groove is vertically communicated with the first installation groove. There are several second bearing seats in the fourth installation groove, and a driving shaft is installed in the second bearing seats. One end of the driving shaft extends to the carrying bottom plate and then a runner is installed, and the other end of the driving shaft is provided with a first bevel gear. There is a second bevel gear on the central shaft, and the first bevel gear is matched with the second bevel gear.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: The supporting seat of the present invention can adapt to stairs with different slopes by replacing different wedge blocks and using the cooperation of a pressure sensor and an adjustment knob, solving the problems of fixed track slope and poor adaptability of handling equipment in the prior art. The transporter adopts an air cushion handling component, which is in a suspended state between the handling process and the center plate, greatly reducing bumps and impacts and improving the smoothness of handling. A limiting mechanism is provided, which can effectively prevent the items on the transporter from shifting when the stair slope is large, reducing the risk of safety accidents. When the transporter enters and leaves the center plate, through the design of the electric cylinder and the front plate, the equipment can move more smoothly, avoiding the inconvenience and potential risks brought by hard angle changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a diagram of the usage state of the present invention;

[0021] Figure 2 is Figure 1 a partial enlarged view of part A in

[0022] Figure 3 is a schematic structural diagram of the supporting seat;

[0023] Figure 4 is a schematic structural diagram when the transporter and the center plate are used in cooperation;

[0024] Figure 5 is a top view when the center plate is installed between two slide rails;

[0025] Figure 6 is a schematic structural diagram of the slide rail;

[0026] Figure 7 is a schematic structural diagram of the center plate;

[0027] Figure 8 is a top view of the transporter;

[0028] Figure 9 is a schematic structural diagram of the limiting mechanism;

[0029] Figure 10 is a schematic structural diagram of the second embodiment of the transporter;

[0030] Figure 11 is Figure 10 a partial enlarged view of part B in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. The present invention will be further described in conjunction with the drawings and embodiments:

[0032] As Figures 1-11 shown, a handling device for subway construction is installed on the steps 101 of the staircase 100, including two parallel slide rails 2. A supporting seat 1 is provided at the bottom of the slide rail, and the supporting seat is clamped on the steps. A central plate 22 is provided between the two slide rails, and a handling cart 3 is slidably matched on the two slide rails. The handling cart is connected with a traction rope 200, and the traction rope can be connected with a winding roller in the prior art, and this winding roller has been disclosed in Chinese Patent CN220466591 U. In the whole handling device, the slide rail plays a role in guiding the handling cart, and the traction rope and the winding roller play an effect of reverse pulling force to prevent the handling cart from moving too fast.

[0033] Furthermore, an elastic supporting block 102 is placed on the step, and the central plate presses the inclined surface of the elastic supporting block to cause elastic deformation of the elastic supporting block. There is no connection relationship between the central plate and the elastic supporting block. When the air cushion handling component of the handling cart applies a working force to the central plate, the elastic supporting block plays a role in supporting the central plate, and both the elastic supporting block and the supporting rod can disperse the force on the central plate to a certain extent.

[0034] In at least one embodiment, as Figure 2 and Figure 3 shown, the supporting seat includes a horizontal plate 11 and a vertical plate 12, and the horizontal plate and the vertical plate are connected together at a 90° angle. A central hole is provided at the joint of the horizontal plate and the vertical plate, and a supporting rod 13 is installed in the central hole. Slots 19 are provided on both sides of the horizontal plate, and a mounting plate 18 is provided at the end of the horizontal plate. A first threaded hole is provided in the middle of the mounting plate. Wedge blocks 110 are inserted into the two slots, and a first screw rod 17 is threadedly connected to the first threaded hole. By manually rotating the first screw rod, the wedge block can be extruded to move along the slot.

[0035] Furthermore, the wedge block is provided with side insertion blocks 111 that cooperate with the slots.

[0036] In the refinement of the solution, when the slide rail is clamped on the supporting seat, the rotation of the first screw rod can make the end of the wedge block insert into the gap between the horizontal plate and the slide rail. People can replace different wedge blocks to fit different staircase slopes.

[0037] Further, a socket hole is provided at the bottom of the vertical plate. An insertion plate 14 is inserted into the socket hole. A pressure sensor 16 is installed on the insertion plate. A regulating knob 15 is threadedly connected to the vertical plate, and the regulating knob can fix the insertion plate in the socket hole.

[0038] In the refined solution, the pressure sensor abuts against the vertical surface of the step. The pressure sensor is connected to a control board, and the control board is connected to a power supply. The usage method of the pressure sensor and its supporting accessory components are prior art and have been disclosed, and the applicant will not give too much explanation.

[0039] In some embodiments, a fixing sleeve is provided on the insertion plate. A spring is provided in the fixing sleeve. A pressure sensor is installed on the spring, and the pressure sensor can abut against the vertical surface of the step under the action of the spring.

[0040] When the data of the pressure sensor changes greatly until it becomes 0, it indicates that there is a risk of the supporting seat slipping off the step.

[0041] In at least one embodiment, the transporter 3 includes a transporting bottom plate 32. A transporting vertical baffle 31 is provided on the transporting bottom plate. A rectangular fitting groove 34 is provided on each of the two sides at the bottom of the transporting bottom plate. The rectangular fitting groove is matched with the slide rail. A lower plate 35 is provided at the bottom of the transporting bottom plate. An air cushion transporting assembly 36 is installed on the lower plate.

[0042] Correspondingly, a central plate is clamped on the support rod. A plurality of first clamping slot openings 201 matched with the support rod are formed at the bottom of the slide rail. A plurality of second clamping slot openings 221 matched with the support rod are formed on the central plate.

[0043] In some embodiments, such as Figure 10 and Figure 11As shown, the carrier 3 includes a carrying bottom plate 32, on which there is a carrying vertical baffle 31. On both sides of the bottom of the carrying bottom plate, there is a rectangular fitting groove 34 each, which is fitted with a slide rail. At the bottom of the carrying bottom plate, there is an air-cushion carrying assembly 36. At the bottom of the carrying vertical baffle, there is a first hinge seat 410, and a group of air-cushion carrying assemblies are rotatably connected to the first hinge seat. On the carrying bottom plate, there is a limit block 411, which is directly above this group of air-cushion carrying assemblies. On the left side of the carrying vertical baffle, there is a second hinge seat 45, and a front plate 41 is rotatably connected to the second hinge seat. At the bottom of the front plate, there is a group of air-cushion carrying assemblies. On the front plate, there is a third hinge seat 42, and on the carrying vertical baffle, there is a fourth hinge seat 44. An electric cylinder 43 is installed between the third hinge seat and the fourth hinge seat, and the electric cylinder can make the front plate rotate around the second hinge seat. There is a through hole on the front plate, and a screw 46 is installed in the through hole. At the lower end of the screw, there is a abutting plate 49, and a first nut 47 and a second nut 48 are threadedly connected to the screw. The first nut and the second nut are respectively on both sides of the front plate.

[0044] The solution is refined. When the front plate is parallel to the carrying bottom plate, the abutting plate abuts against the top of the air-cushion carrying assembly connected to the first hinge seat, and there is a limit block to limit the right side of this group of air-cushion carrying assemblies, thus restricting the rotation of this group of air-cushion carrying assemblies.

[0045] This design is applicable to the contact positions when the carrier enters and leaves the center plate, enabling the equipment to move more smoothly instead of suddenly changing the angle rigidly.

[0046] The solution is refined. The air-cushion carrying assembly is an off-the-shelf component, and the LHQD-10-4B air-cushion carrying assembly of the Longsheng brand can be directly purchased.

[0047] In at least one embodiment, when the slope of the stairs is relatively large, it is necessary to prevent safety accidents caused by the lateral displacement of the items on the carrier. A limiting mechanism is provided on the carrier.

[0048] Further, as Figure 8 and Figure 9As shown in the figure, the limiting mechanism includes a first installation groove 301, a second installation groove 302, a third installation groove 303, and a fourth installation groove 304 provided on the handling bottom plate. A set of bidirectional moving components are installed in each of the first installation groove and the second installation groove. Taking the first installation groove as an example, the bidirectional moving component includes a central shaft 309. A plurality of first bearing seats 311 are provided in the first installation groove, and the central shaft is installed on the first bearing seats. One end of the central shaft is connected with a clockwise threaded rod 313 through a coupling, and the other end of the central shaft is connected with a counterclockwise threaded rod 314 through a coupling. The other end of the clockwise threaded rod is rotatably connected to the left end of the first installation groove, and the other end of the counterclockwise threaded rod is rotatably connected to the right end of the first installation groove. The first installation groove and the second installation groove are connected through the third installation groove. A belt pulley 315 is provided on the central shaft, and the two belt pulleys are driven and connected through a synchronous belt 316. The synchronous belt is located in the third installation groove. A clamping plate 33 is slidably fitted on both the clockwise threaded rod and the counterclockwise threaded rod. The clamping plate can slide along the inner wall of the first installation groove. The rotation of the central shaft can make the two clamping plates approach or move away from each other. The fourth installation groove is vertically connected to the first installation groove. A number of second bearing seats 305 are provided in the fourth installation groove, and a driving shaft 306 is installed in the second bearing seats. One end of the driving shaft extends to the handling bottom plate and is then installed with a runner 307. A first bevel gear 308 is provided at the other end of the driving shaft. Correspondingly, a second bevel gear 310 is provided on the central shaft, and the first bevel gear and the second bevel gear are engaged with each other. By rotating the runner, the two clamping plates of the bidirectional moving component can approach or move away from each other.

[0049] Working mode, when the equipment slides down along the stairs, first, a winding roller needs to be configured so that the towing rope of the winding roller is connected to the handling vehicle.

[0050] When going down the stairs normally, the handling vehicle is in a suspended state between the central plate under the action of the air cushion handling component. At this time, the rectangular mating groove 34 and the slide rail only play a guiding role. The central plate presses the inclined surface of the elastic supporting block and causes the elastic supporting block to undergo elastic deformation. The slide rail and the central plate are clamped on the support rod. This suspended handling method is more stable.

[0051] When the equipment starts to enter the stairs from the top of the stairs, such as Figure 10As shown, there are a total of three groups of air cushion handling components at the bottom of the handling truck at this time. The first group of air cushion handling components is installed on the front plate. The second group of air cushion handling components is rotatably connected to the bottom of the vertical handling vertical baffle. The third group of air cushion handling components is located at the bottom of the handling bottom plate. Driven by the air cushion handling components, the equipment moves to the junction of the center plate and the stairs. At this time, the electric cylinder operates to make the first group of air cushion handling components fit the center plate. Then people slowly push the handling truck. At this time, the first group of air cushion handling components and the third group of air cushion handling components act simultaneously. The second group of air cushion handling components has a weak effect because it cannot form a good air cushion layer with the ground. Since the second group of air cushion handling components can rotate, people slowly push the handling truck until the second group of air cushion handling components cooperate with the center plate. Two groups of air cushion handling components are sufficient to maintain the suspension force of the handling truck. The situation when the handling truck exits the center plate is similar to when it enters the center plate.

[0052] During the actual use process, the angle change will not be particularly large, but it is also necessary to try to ensure slow movement when entering and exiting the center plate.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A handling device for subway construction, installed on the steps of stairs, characterized in that: It comprises two parallel slide rails, a supporting seat is provided at the bottom of the slide rails, the supporting seat is clamped on the step, a center plate is provided between the two slide rails, a transport trolley is slidably fitted on the two slide rails, the transport trolley is connected with a traction rope, an elastic supporting block is placed on the step, the center plate presses down the inclined surface of the elastic supporting block and causes the elastic supporting block to undergo elastic deformation.

2. The transport device for subway construction according to claim 1, characterized in that: The supporting seat includes a horizontal plate and a vertical plate, the horizontal plate and the vertical plate are connected together, a center hole is provided at the junction of the horizontal plate and the vertical plate, a support rod is installed in the center hole, slots are provided on both sides of the horizontal plate, a mounting plate is provided at the end of the horizontal plate, a first threaded hole is provided in the middle of the mounting plate, wedge blocks are inserted in the two slots, and a first screw is threadedly connected to the first threaded hole.

3. The transport device for subway construction according to claim 2, characterized in that: When the slide rail is clamped on the supporting seat, the first screw rod can be rotated to allow the end of the wedge block to be inserted into the gap between the horizontal plate and the slide rail.

4. The transport device for subway construction according to claim 2 or 3, characterized in that: A plug hole is provided at the bottom of the vertical plate, a plug board is plugged into the plug hole, a pressure sensor is mounted on the plug board, and an adjusting knob is threadedly connected to the vertical plate, and the adjusting knob can fix the plug board in the plug hole.

5. The transport device for subway construction according to claim 4, characterized in that: The pressure sensor rests against the vertical surface of the step.

6. The transport device for subway construction according to claim 2, characterized in that: The transport vehicle includes a transport base plate, a transport vertical baffle is provided on the transport base plate, a rectangular matching groove is provided on both sides of the bottom of the transport base plate, the rectangular matching groove cooperates with the slide rail, a lower plate is provided at the bottom of the transport base plate, and an air cushion transport component is installed on the lower plate.

7. The transport device for subway construction according to claim 6, characterized in that: A center plate is clamped on the support rod, a plurality of first clamping notches matched with the support rod are formed at the bottom of the slide rail, and a plurality of second clamping notches matched with the support rod are formed on the center plate.

8. The transport device for subway construction according to claim 2, characterized in that: The transport vehicle includes a transport base plate, a transport vertical baffle is provided on the transport base plate, a rectangular matching groove is provided on both sides of the bottom of the transport base plate, and the rectangular matching groove cooperates with the slide rail, an air cushion transport component is provided at the bottom of the transport base plate, a first hinge seat is provided at the bottom of the transport vertical baffle, a group of air cushion transport components is rotatably connected to the first hinge seat, a limit block is provided on the transport base plate, and the limit block is located directly above the group of air cushion transport components, a second hinge seat is provided on the left side of the transport vertical baffle, and the second hinge seat is provided on the A front plate is rotatably connected, a group of air cushion transport components is provided at the bottom of the front plate, a third hinge seat is provided on the front plate, a fourth hinge seat is provided on the transport vertical baffle, an electric cylinder is installed between the third hinge seat and the fourth hinge seat, the electric cylinder can make the front plate rotate around the second hinge seat, a through hole is provided on the front plate, a screw is installed in the through hole, a supporting plate is provided at the lower end of the screw, a first nut and a second nut are threadedly connected on the screw, and the first nut and the second nut are respectively located on both sides of the front plate.

9. The transport device for subway construction according to claim 8, characterized in that: When the front plate is parallel to the transport bottom plate, the abutting plate abuts against the top of the air cushion transport assembly connected to the first hinge seat.

10. The transport device for subway construction according to claim 6 or 8, characterized in that: The transport vehicle is provided with a limiting mechanism, and the limiting mechanism includes a first mounting groove, a second mounting groove, a third mounting groove and a fourth mounting groove arranged on the transport bottom plate, a group of bidirectional movable components are respectively installed in the first mounting groove and the second mounting groove, and the bidirectional movable component includes a central shaft, a plurality of first bearing seats are arranged in the first mounting groove, the central shaft is installed on the first bearing seat, one end of the central shaft is connected to a clockwise threaded rod through a coupling, and the other end of the central shaft is connected to a counterclockwise threaded rod through a coupling, the other end of the clockwise threaded rod is rotatably connected to the left end portion of the first mounting groove, and the other end of the counterclockwise threaded rod is rotatably connected to the right end portion of the first mounting groove, and the first mounting groove and the second mounting groove are connected through The gears are connected through a third mounting groove, a pulley is provided on the central shaft, and the two pulleys are connected by a synchronous belt drive, and the synchronous belt is in the third mounting groove, and a clamping plate is slidably matched on the clockwise threaded rod and the counterclockwise threaded rod, and the clamping plate can slide along the inner wall of the first mounting groove, and the rotation of the central shaft can make the two clamping plates approach or move away from each other, and the fourth mounting groove is vertically connected to the first mounting groove, and a plurality of second bearing seats are provided in the fourth mounting groove, and a driving shaft is installed in the second bearing seat, and one end of the driving shaft extends to the carrying base plate and a rotating wheel is installed thereon, and the other end of the driving shaft is provided with a first bevel gear, and a second bevel gear is provided on the central shaft, and the first bevel gear cooperates with the second bevel gear.

Images