Anti-falling elevator shaft lifting operation platform

Abstract

The utility model discloses an anti-falling elevator shaft lifting operation platform which comprises a rectangular net rack, a lifting rod and a lifting rod. The working table plate is arranged on the upper surface of the net rack, and at least three hanging rings are arranged on the working table plate; the supporting legs are uniformly divided into four groups, are respectively arranged in four directions of the working table plate, and are respectively hinged with the net rack; rollers are arranged at the tail ends of the supporting legs; when the working table plate ascends, the supporting legs are forced to overturn towards the position below the center of the working table plate, and the rolling wheels make contact with the inner wall of the elevator shaft. The supporting legs extend out of the working table plate in a natural state; the plurality of wall clamping and embedding mechanisms are uniformly divided into four groups which are respectively arranged in four directions of the working table plate and are respectively connected with the net rack, and each wall clamping and embedding mechanism penetrates through the working table plate through a pull rope and is connected with a lifting rope for lifting the working table plate. According to the utility model, the operation platform can be mounted and lifted through the hoisting of a tower crane, so that the construction cost is saved, the mounting efficiency of the operation platform is improved, and the hoisting safety can be ensured.

Description

Technical Field

[0001] The utility model relates to the field of building construction equipment, in particular to a fall-proof elevator shaft lifting operation platform. Background Art

[0002] With the increasing popularity of high-rise buildings, the construction of operating platforms in elevator shafts has always been a construction problem. The traditional scaffolding-type elevator shaft operating platform requires a large number of holes to be reserved in the elevator shaft, and a large number of pipes are used during the construction, which consumes a lot of manpower, has the problems of high construction cost and low efficiency.

[0003] In order to solve the above problems, Patent No. ZL201620910021.1 discloses a technical solution for an elevator shaft operating platform 8 with automatic flipping legs for integral lifting. The legs, supporting main beams and a rigid protective platform are assembled into one on the ground. After being hoisted into place by a tower crane and wire ropes, a steel pipe operating frame is set up on the rigid protective platform to form a stable platform system. During the construction of the main structure, holes are reserved on the elevator shaft wall, and the legs automatically flip and snap into the reserved holes during the lifting of the rigid protective platform. The supporting main beam adopts a retractable design of supporting a wide main beam and inserting a narrow main beam. When adjusted to the required size, it is tightened and fixed by bolts at the bottom of the supporting main beam. This technology solves the above problems, but it loses protection for the safety of the platform that may be caused by hoisting. Figure 1 As shown, when the operating platform 8 is adjusted and broken in the area of ​​the elevator shaft 7 without the reserved holes, the center of gravity of the operating platform is inconsistent with the centroid of the operating platform due to the standing position of the personnel, the accumulation of materials, etc., causing the operating platform 8 to flip and tilt. At this time, the distance between the two inclined sides and the side walls of the elevator shaft 7 increases, and the previously designed legs cannot be extended into the reserved holes 71 again. At the same time, the legs on the two sides opposite to the inclined sides will also be misaligned with the reserved holes 71 due to the tilt, so safety cannot be guaranteed. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the purpose of the utility model is to provide a fall-proof elevator shaft lifting operating platform, so that the installation and lifting of the operating platform can be completed by lifting with a tower crane, which saves construction costs while improving the installation efficiency of the operating platform and ensuring the safety of lifting.

[0005] The purpose of the utility model is achieved through such technical solution:

[0006] An anti-fall elevator shaft lifting operation platform, comprising:

[0007] The grid is rectangular and has outer dimensions smaller than the cross-sectional dimensions of the elevator shaft;

[0008] A workbench is arranged on the upper surface of the grid, and at least three hanging rings are arranged on the workbench, which are arranged in a row around the central circumference of the workbench;

[0009] A plurality of legs are evenly divided into four groups and respectively hinged to the grid at four directions of the workbench; rollers are arranged at the ends of the legs; when the workbench rises, the legs are forced to flip downward to the center of the workbench, and the rollers contact the inner wall of the elevator shaft; the legs extend outward from the workbench in a natural state;

[0010] A plurality of embedded wall mechanisms are evenly divided into four groups and respectively connected to the grid in four directions of the workbench. Each embedded wall mechanism is connected to the lifting rope of the workbench by a pull rope passing through the workbench. After the lifting rope of the workbench breaks, the embedded wall mechanism moves to the outside of the workbench and is fixedly connected to the inner wall of the elevator shaft.

[0011] Furthermore, the supporting leg comprises:

[0012] Two plywood plates are arranged at a relative interval;

[0013] The leg plate is located between the two plywood plates, the tail is hinged with the two plywood plates, and the head is provided with rollers; the rolling direction of the rollers is the same as the hoisting direction of the workbench plate;

[0014] The torsion spring is sleeved on the hinge shaft of the leg plate and the splint, located between the two splints, with one end connected to the leg plate and the other end connected to the hinge shaft of the leg plate and the splint, to control the leg plate to extend outward in a natural state.

[0015] Furthermore, the cross section of the leg plate is U-shaped; the opening of the leg plate faces downward; a notch 321 is provided at the bottom of the end groove of the leg plate; and the roller is arranged in the notch 321 of the leg plate.

[0016] Furthermore, the grid comprises:

[0017] A rectangular frame located just below the outer edge of the work surface;

[0018] A plurality of structural rods are arranged in a mesh shape and connected to the rectangular frame; the side surfaces of the clamping plate are connected to the side surfaces of the structural rods;

[0019] The reinforcing rod is arranged inside the structural rod to strengthen the structural strength of the gap between the rectangular frame and the structural rod.

[0020] Further, the card embedding wall mechanism comprises:

[0021] The sliding assembly is arranged directly below the grid, and the sliding direction is directly facing the outer side of the workbench;

[0022] A nail gun is slidably arranged in the sliding assembly, with the end facing the outer side of the workbench;

[0023] A nail, which is arranged in a nail gun;

[0024] An elastic force storage component connected to the nail gun and the sliding component;

[0025] The control component is connected with the nail gun and passes through the workbench to be connected with the lifting rope for lifting the workbench.

[0026] Furthermore, the sliding assembly comprises:

[0027] Two vertical and oppositely arranged support plates are provided with sliding holes in the two support plates, and the connecting line of the two sliding holes points obliquely upward toward the inner wall of the elevator shaft; the nail gun is arranged in the sliding hole and moves along the sliding hole under the action of external force.

[0028] Furthermore, the elastic force storage component comprises:

[0029] The force storage spring is sleeved on the outer surface of the nail gun and is located between the two support plates; one end of the force storage spring is connected to the front surface of the nail gun, and the other end is against the plate surface of the support plate adjacent to the tail of the nail gun.

[0030] Furthermore, the control component comprises:

[0031] The guide roller is arranged directly below the grid and directly opposite to the tail of the nail gun;

[0032] A pull rope, one end of which passes through the workbench plate and is connected to the lifting rope of the workbench plate, and the other end of which passes around the guide roller and is connected to the tail end of the nail gun.

[0033] Furthermore, there are four card-embedded wall mechanisms, and the pull ropes of the four control components are gathered together and then passed through the workbench through the control rope to be connected with the lifting rope of the workbench; when the force storage spring is charged, the pull ropes of the four control components form an umbrella shape under the control rope; an inspection cover is provided on the workbench in the area facing the support plates.

[0034] Furthermore, a through hole is provided in the middle of the workbench for the control rope to pass through; a control tube is provided on the upper surface of the workbench, which is located directly above the through hole, and the control rope passes through the control tube; through holes 51 are provided on opposite sides of the control tube; a control ring is provided on the control rope; when the force storage spring stores force, the control ring faces the through hole 51, and the control ring and the through hole 51 are locked relative to each other by a latch.

[0035] Due to the adoption of the above technical solution, the utility model has the following advantages:

[0036] 1. The movable legs can be used to move smoothly in the elevator shaft. When the workbench needs to stop, the legs can be inserted into the reserved holes in the elevator shaft to limit the workbench.

[0037] 2. Through the card-embedded wall mechanism, after the lifting rope fails, the working platform can be relatively fixed to the elevator shaft to ensure the life safety of the operator on the workbench, while not affecting the operation of the personnel on the workbench.

[0038] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings of the present utility model are as follows:

[0040] Figure 1 Schematic diagram of a conventional operating platform tipping over after the suspension rope fails in the elevator shaft.

[0041] Figure 2 It is a schematic diagram of the top view of the structure of the anti-fall elevator shaft lifting operation platform in the embodiment.

[0042] Figure 3 for Figure 2 Enlarged structural diagram at A in the middle.

[0043] Figure 4 for Figure 2 Enlarged structural diagram at B in the middle.

[0044] Figure 5 for Figure 4 Schematic diagram of the structure at the CC section.

[0045] Figure 6 for Figure 2 Schematic diagram of the structure of the DD section.

[0046] Figure 7 for Figure 6 Enlarged structural diagram at E in the middle.

[0047] Figure 8 for Figure 7 Enlarged structural diagram at F in the middle.

[0048] Fig. 9 for Figure 6 Enlarged structural diagram at G in the middle.

[0049] Fig.10 for Figure 6 Schematic diagram of the structure at the HH section.

[0050] Fig.11 Schematic diagram of the structure of the grid in the embodiment.

[0051] Fig.12It is a schematic diagram of the cross-sectional structure of the anti-fall elevator shaft lifting operation platform when it rises in the elevator shaft in the embodiment.

[0052] Fig.13 It is a schematic diagram of the cross-sectional structure of the anti-fall elevator shaft lifting operating platform in the embodiment when the legs in the elevator shaft extend into the reserved holes in the elevator shaft.

[0053] In the figure: 11. rectangular frame; 12. structural rod; 13. reinforcing rod; 2. workbench; 21. perforation; 22. inspection cover; 23. lifting ring; 31. splint; 32. leg plate; 321. notch 321; 33. torsion spring; 34. roller; 411. support plate; 412. sliding hole; 42. nail gun; 431. storage spring; 441. guide roller 411; 442. pull rope; 45. control rope; 451. control ring; 5. control tube; 51. through hole 51; 6. latch; 7. elevator shaft; 71. reserved hole; 8. operating platform. DETAILED DESCRIPTION

[0054] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0055] Example:

[0056] like Figures 2 to 11 As shown, an anti-fall elevator shaft 7 lifting operating platform 8 includes:

[0057] The grid is rectangular and has outer dimensions smaller than the cross-sectional dimensions of the elevator shaft 7;

[0058] A workbench 2 is arranged on the upper surface of the grid, and at least three hanging rings 23 are arranged on the workbench 2 and are arranged in a row around the central circumference of the workbench 2;

[0059] Eight legs are evenly divided into four groups and respectively hinged to the grid in four directions of the workbench 2; rollers 34 are provided at the ends of the legs; when the workbench 2 rises, the legs are forced to flip toward the bottom of the center of the workbench 2, and the rollers 34 contact the inner wall of the elevator shaft 7; the legs extend outward from the workbench 2 in a natural state;

[0060] The four embedded wall mechanisms are evenly divided into four groups and respectively connected to the grid in four directions of the workbench 2. Each embedded wall mechanism is connected to the lifting rope of the workbench 2 through the pull rope 442 that passes through the workbench 2. After the lifting rope of the workbench 2 breaks, the embedded wall mechanism moves to the outside of the workbench 2 and is fixedly connected to the inner wall of the elevator shaft 7.

[0061] The movable legs can be used to smoothly move the legs in the elevator shaft 7. When the workbench 2 needs to stay, the legs can be inserted into the reserved holes of the elevator shaft 7 to limit the position of the workbench. Through the card embedding wall mechanism, after the lifting rope fails, the work platform can be relatively fixed to the elevator shaft 7, ensuring the life safety of the operator on the workbench 2, while not affecting the operation of the personnel on the workbench 2.

[0062] In this embodiment, the legs include:

[0063] Two clamping plates 31 are arranged relatively spaced apart;

[0064] The leg plate 32 is located between the two clamping plates 31, the tail portion is hinged to the two clamping plates 31, and the head portion is provided with a roller 34; the rolling direction of the roller 34 is the same as the hoisting direction of the workbench plate 2;

[0065] The torsion spring 33 is sleeved on the hinge axis of the leg plate 32 and the clamp plate 31 and is located between the two clamp plates 31. One end of the torsion spring 33 is connected to the leg plate 32 and the other end is connected to the hinge axis of the leg plate 32 and the clamp plate 31 to control the leg plate 32 to extend outward in a natural state.

[0066] The rotation of the leg plate 32 is limited and reset by the torsion spring 33, and the structure is simple.

[0067] In this embodiment, the cross section of the leg plate 32 is U-shaped; the opening of the leg plate 32 faces downward; a notch 321 is provided at the bottom of the end groove of the leg plate 32; and the roller 34 is disposed in the notch 321 of the leg plate 32.

[0068] The structural strength is higher, and no separate component for installing the roller 34 is required.

[0069] In this embodiment, the grid comprises:

[0070] A rectangular frame 11 is located directly below the outer edge of the workbench 2;

[0071] A plurality of structural rods 12 are arranged in a mesh shape and connected to the rectangular frame 11; the side surfaces of the clamping plate 31 are connected to the side surfaces of the structural rods 12;

[0072] The reinforcing rod 13 is arranged inside the structural rod 12 to strengthen the structural strength of the gap between the rectangular frame 11 and the structural rod 12 .

[0073] The structural rod 12 is used to strengthen the structural strength of the outriggers to ensure the bearing capacity of the outriggers.

[0074] In this embodiment, the card embedding wall mechanism includes:

[0075] The sliding assembly is arranged directly below the grid, and the sliding direction faces the outer side of the workbench plate 2;

[0076] A nail gun 42 is slidably disposed in the sliding assembly, with the end thereof facing the outer side of the workbench 2;

[0077] Nail gun (not shown), arranged in the nail gun 42;

[0078] An elastic force storage component connected to the nail gun 42 and the sliding component;

[0079] The control component is connected to the nail gun 42 and passes through the workbench 2 to be connected to the lifting rope for lifting the workbench 2.

[0080] In this embodiment, the sliding assembly includes:

[0081] Two vertical and oppositely arranged support plates 411 are provided with sliding holes 412 in the two support plates 411, and the connecting line of the two sliding holes 412 points obliquely upward toward the inner wall of the elevator shaft 7; the nail gun 42 is arranged in the sliding hole 412 and moves along the sliding hole 412 under the action of external force.

[0082] The sliding hole 412 limits the sliding of the nail gun 42. If the surface of the nail gun 42 selected for use is not smooth, a sleeve can be wrapped around the surface of the nail gun 42 to ensure smooth sliding of the entire nail gun 42.

[0083] In this embodiment, the elastic force storage component includes:

[0084] The force storage spring 431 is sleeved on the outer surface of the nail gun 42 and is located between the two support plates 411; one end of the force storage spring 431 is connected to the front surface of the nail gun 42, and the other end is against the plate surface of the support plate 411 adjacent to the rear of the nail gun 42.

[0085] In this embodiment, the control component includes:

[0086] The guide roller 411 is arranged directly below the grid and directly facing the tail of the nail gun 42;

[0087] One end of the pull rope 442 passes through the workbench 2 and is connected to the lifting rope for lifting the workbench 2, and the other end passes around the guide roller 411 and is connected to the tail end of the nail gun 42.

[0088] In this embodiment, there are four card-embedded wall mechanisms. The pull ropes 442 of the four control components are gathered together and then passed through the workbench 2 through the control rope 45 to be connected with the lifting rope of the workbench 2; when the force storage spring 431 stores force, the pull ropes 442 of the four control components form an umbrella shape under the control rope 45; an inspection cover 22 is provided on the workbench 2 in the area facing the support plates 411.

[0089] In this embodiment, the workbench 2 is provided with a through hole 21 in the middle for the control rope 45 to pass through; the upper surface of the workbench 2 is provided with a control tube 5, which is located directly above the through hole 21, and the control rope 45 passes through the control tube 5; through holes 51 are provided on the opposite sides of the control tube 5; a control ring 451 is provided on the control rope 45; when the force storage spring 431 stores force, the control ring 451 is opposite to the through hole 51, and the control ring 451 and the through hole 51 are locked relative to each other by the pin 6.

[0090] Controlling all the card embedding wall mechanisms through a control rope 45 can better ensure synchronization.

[0091] In this embodiment, the anti-fall elevator shaft 7 lifting operation platform 8 works like this: all parts are arranged according to Figure 3 Install as shown, and ensure that the control ring 451 is locked in place, select a nail with a length of 72 mm, then insert the nail into the nail gun 42, and set the nail shooting strength of the nail to ensure that when the nail gun 42 is working, the nail can be about halfway into the wall, leaving half outside the wall.

[0092] Then use the tower crane to bind the lifting ring 23 and the control rope 45. After the tower crane is lifted, remove the latch 6. At this time, under the gravity of the device itself, the control rope 45 is tightened, the nail gun 42 compresses the storage spring 431, and the tower crane continues to lift the workbench 2. At this time, the roller 34 is against the elevator shaft 7, and the leg plate 32 is in a rotating state. Fig.12 shown.

[0093] As the workbench 2 continues to rise, Fig.13 As shown, the legs extend into the reserved holes 71 of the elevator shaft 7. At this time, the workbench 2 is controlled to be appropriately lowered, and under the action of gravity, the workbench 2 is as follows Figure 3 In the state shown, the leg plate 32 is against the rectangle of the grid and the workbench plate 2 is restricted.

[0094] If the lifting rope fails or breaks during the rising process of the workbench 2, the control rope 45 loses its upward pulling force. Under the action of the storage spring 431, the nail gun 42 is pushed toward the elevator shaft 7, and the nails are fired into the concrete. Half of the nails are in the wall. At this time, with the reaction force of the gunpowder in the nail gun 42, the nail gun 42 retracts, exposing the other half of the nails. At the same time, the working platform falls under the action of gravity, which may interfere with the exposed nails and block the descent of the working platform.

[0095] If the rope failure does not occur, when the workbench 2 is less than 0.5 meters from the ground, the control ring 451 is locked in place using the latch 6, and then the workbench 2 is lowered to ensure that the nail gun 42 does not work.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. An anti-fall elevator shaft lifting operation platform, characterized in that: include: The grid is rectangular and has outer dimensions smaller than the cross-sectional dimensions of the elevator shaft; A workbench is arranged on the upper surface of the grid, and at least three hanging rings are arranged on the workbench, which are arranged in a row around the central circumference of the workbench; A plurality of legs are evenly divided into four groups and respectively hinged to the grid at four directions of the workbench; rollers are arranged at the ends of the legs; when the workbench rises, the legs are forced to flip downward to the center of the workbench, and the rollers contact the inner wall of the elevator shaft; the legs extend outward from the workbench in a natural state; A plurality of embedded wall mechanisms are evenly divided into four groups and respectively connected to the grid in four directions of the workbench. Each embedded wall mechanism is connected to the lifting rope of the workbench by a pull rope passing through the workbench. After the lifting rope of the workbench breaks, the embedded wall mechanism moves to the outside of the workbench and is fixedly connected to the inner wall of the elevator shaft.

2. The anti-fall elevator shaft lifting operation platform according to claim 1 is characterized in that: The legs include: Two plywood plates are arranged at a relative interval; The leg plate is located between the two plywood plates, the tail is hinged with the two plywood plates, and the head is provided with rollers; the rolling direction of the rollers is the same as the hoisting direction of the workbench plate; The torsion spring is sleeved on the hinge shaft of the leg plate and the splint, located between the two splints, with one end connected to the leg plate and the other end connected to the hinge shaft of the leg plate and the splint, to control the leg plate to extend outward in a natural state.

3. The anti-fall elevator shaft lifting operation platform according to claim 2 is characterized in that: The cross section of the leg plate is U-shaped; the opening of the leg plate is downward; a notch is provided at the bottom of the end groove of the leg plate; and the roller is arranged in the notch of the leg plate.

4. The anti-fall elevator shaft lifting operation platform according to claim 2 is characterized in that: The grid comprises: A rectangular frame located just below the outer edge of the work surface; A plurality of structural rods are arranged in a mesh shape and connected to the rectangular frame; the side surfaces of the clamping plate are connected to the side surfaces of the structural rods; The reinforcing rod is arranged inside the structural rod to strengthen the structural strength of the gap between the rectangular frame and the structural rod.

5. The anti-fall elevator shaft lifting operation platform according to claim 1 is characterized in that: The card embedding wall mechanism comprises: The sliding assembly is arranged directly below the grid, and the sliding direction is directly facing the outer side of the workbench; A nail gun is slidably arranged in the sliding assembly, with the end facing the outer side of the workbench; A nail, which is arranged in a nail gun; An elastic force storage component connected to the nail gun and the sliding component; The control component is connected with the nail gun and passes through the workbench to be connected with the lifting rope for lifting the workbench.

6. The anti-fall elevator shaft lifting operation platform according to claim 5 is characterized in that: The sliding assembly comprises: Two vertical and oppositely arranged support plates are provided with sliding holes in the two support plates, and the connecting line of the two sliding holes points obliquely upward toward the inner wall of the elevator shaft; the nail gun is arranged in the sliding hole and moves along the sliding hole under the action of external force.

7. The anti-fall elevator shaft lifting operation platform according to claim 6 is characterized in that: The elastic force storage component comprises: The force storage spring is sleeved on the outer surface of the nail gun and is located between the two support plates; one end of the force storage spring is connected to the front surface of the nail gun, and the other end is against the plate surface of the support plate adjacent to the tail of the nail gun.

8. The anti-fall elevator shaft lifting operation platform according to claim 6 is characterized in that: The control component comprises: The guide roller is arranged directly below the grid and directly opposite to the tail of the nail gun; A pull rope, one end of which passes through the workbench plate and is connected to the lifting rope of the workbench plate, and the other end of which passes around the guide roller and is connected to the tail end of the nail gun.

9. The anti-fall elevator shaft lifting operation platform according to claim 8, characterized in that: There are four card-embedded wall mechanisms, and the pull ropes of the four control components are gathered together and then passed through the workbench through the control rope to be connected with the lifting rope of the workbench; when the force storage spring is charged, the pull ropes of the four control components form an umbrella shape under the control rope; an inspection cover is provided on the workbench in the area facing the support plates.

10. The anti-fall elevator shaft lifting operation platform according to claim 9, characterized in that: A through hole is provided in the middle of the workbench for the control rope to pass through; a control tube is provided on the upper surface of the workbench, which is located directly above the through hole, and the control rope passes through the control tube; through holes are provided on opposite sides of the control tube; a control ring is provided on the control rope; when the force storage spring stores force, the control ring faces the through hole, and the control ring and the through hole are locked relative to each other by a latch.

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