Telescopic protection platform for elevator shaft

Abstract

The utility model discloses an elevator shaft telescopic protection platform which comprises a fixed transverse frame arranged on the outer side of an elevator shaft doorway, two connecting seats are fixedly connected to the fixed transverse frame, main beams are assembled and connected to the two connecting seats, the other ends of the main beams are connected with clamping jaws through adjusting frames, and the clamping jaws are connected with the fixed transverse frame. The clamping jaws abut against the inner wall of the elevator shaft so that the other end of the main beam can be fixed. Pedals are laid on the two main beams, guide rail grooves are formed in the bottoms of the pedals, and adjusting mechanisms are arranged at the middle sections of the guide rail grooves. The pedal and the main beam are fixed in an auxiliary mode, the stability of pedal laying is remarkably improved, the pedal is prevented from moving in the operation process, the use safety is enhanced, meanwhile, the wolf family clamping unit is operated through a single adjusting mechanism, and operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator shaft construction protection, in particular to a telescopic protection platform for an elevator shaft. Background Art

[0002] The elevator shaft is the hoistway where the elevator is installed. The size of the shaft is determined according to the elevator type selected. The elevator track and counterweight track are installed on the shaft wall. The elevator door is installed in the reserved door opening. There is an elevator machine room at the top of the shaft. The retractable protective platform of the elevator shaft is a working platform built for the elevator shaft construction.

[0003] For example, the patent with the authorization public number CN216740639U and the authorization public date of 2022.06.14, and the name of "Elevator Shaft Protection Platform", includes a supporting mechanism and a protective mechanism. The protective mechanism is installed on the supporting mechanism. The supporting mechanism supports the protective mechanism, and the protective mechanism supports the construction personnel; the supporting mechanism includes a rear bar, two sets of fixing parts, two sets of claws and two sets of main beams. The rear bar is installed on the right end of the two sets of fixing parts, and the right ends of the two sets of main beams are respectively rotatably installed on the two sets of fixing parts, and the two sets of claws are respectively rotatably installed on the left ends of the two sets of fixing parts; the two sets of main beams are extended into the elevator shaft, so that the two sets of claws are supported on the inner wall of the elevator shaft, and at the same time, the bottom of the two sets of fixing parts are supported on the inner wall of the elevator shaft, and then the rear bar is placed horizontally outside the elevator shaft door, and then the protective mechanism is installed on the two sets of main beams, so that the staff can stand on the protective mechanism to carry out construction on the elevator shaft, thereby reducing the difficulty of construction and improving the safety of the staff.

[0004] Similar to the above application, in the prior art, most elevator shaft construction protection platforms are built by setting up a support mechanism in the shaft with a pedal. One end of the main beam of the support mechanism is connected to a fixing part, and the other end is fixed to the shaft wall by a clamping claw. The pedal is then laid on the main beam to realize the construction of the elevator shaft construction protection platform. However, when the pedal is laid on the main beam, it cannot be completely clamped with the main beam. When the construction workers walk on the pedal, the pedal will easily move, affecting the overall stability of the protection platform and posing a safety risk. Utility Model Content

[0005] The purpose of the present utility model is to overcome the problem in the prior art that the pedal cannot be completely clamped with the main beam when it is laid on the main beam, and the pedal is prone to movement when the construction workers walk on the pedal, which affects the overall stability of the protection platform and poses a safety risk. The utility model provides a retractable protection platform for an elevator shaft, which can assist in fixing the pedal and the main beam, significantly improve the stability of the pedal laying, prevent the pedal from moving during operation, enhance the safety of use, and realize a single adjustment mechanism to operate the wolf clamping unit at the same time, which is convenient and quick to operate.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The utility model discloses a telescopic protective platform for an elevator shaft, comprising a fixed horizontal frame arranged outside the elevator shaft doorway, two connecting seats being fixedly connected to the fixed horizontal frame, and main beams being assembled and connected to the two connecting seats.

[0008] The other end of each main beam is connected to a claw through an adjusting frame, and the claw abuts against the inner wall of the elevator shaft to fix the other end of the main beam;

[0009] Pedals are laid on the two main beams. There are multiple pedals, which are spliced ​​and laid on the main beams. A guide rail groove is opened at the bottom of the pedals, and an adjustment mechanism is set at the middle position of the guide rail groove;

[0010] The guide rail groove is symmetrically provided with clamping units on both sides of the adjustment mechanism. The adjustment mechanism is connected to the two clamping units through a traction rope. The adjustment mechanism is used to drive the two clamping units to be clamped and fixed on the two main beams respectively. Compared with the prior art in which the pedal is directly laid on the main beam, two sets of clamping units are slidably set by opening a guide rail groove at the bottom of the pedal, and an adjustment mechanism is provided to cooperate with the traction rope to be connected to the two sets of clamping units to achieve synchronous driving of the two clamping units to be clamped and fixed on the two main beams respectively, to achieve auxiliary fixation between the pedal and the main beam, significantly improve the stability of the pedal laying, prevent the pedal from moving during operation, enhance the safety of use, and at the same time realize a single adjustment mechanism to operate the wolf clamping units at the same time, which is convenient and quick to operate.

[0011] Preferably, the clamping unit includes a first clamping portion and a second clamping portion slidably disposed on the guide rail groove, the second clamping portion being located near the end of the guide rail groove, and a guide wheel is rotated around the second clamping portion. When the clamping unit is fixedly clamped to the main beam, the first clamping portion and the second clamping portion of the clamping unit move toward each other to clamp and secure the main beam from both sides.

[0012] Preferably, the adjustment mechanism includes a winding frame rotatably disposed in the middle of the guide rail groove, the winding frame being connected to one end of a traction rope, the other end of which passes through the winding guide wheel and is connected to the first clamping portion. The winding frame is connected to two traction ropes, which respectively drive the clamping units located on both sides of the winding frame.

[0013] Preferably, a circular groove is provided at a position corresponding to the position of the pedal surface and the winding frame, an adjustment shaft is fixed on the winding frame, and the adjustment shaft extends into the circular groove, and a fixing nut is screwed on the adjustment shaft for locking. When the adjustment mechanism cooperates with the traction rope to drive the two sets of clamping units to clamp and fix them on the main beam, the fixing nut is first loosened, and then the adjustment shaft is rotated, and the traction rope is driven to be wound through the adjustment shaft. At this time, the traction rope first pulls the first clamping part closer to the main beam. When the first clamping part abuts one side of the main beam and cannot be pulled, the traction rope drives the second clamping part to approach the main beam through the winding guide wheel and abuts the other side of the main beam. At this time, the adjusting shaft is fixed by the fixing nut.

[0014] Preferably, the pedal includes a main frame, a center frame is fixed in the main frame, the guide rail groove is formed on the center frame, and a supporting panel is welded to the main frame.

[0015] Preferably, the end of the connecting seat is horizontally connected to a connecting screw, the fixed horizontal frame is provided with a connecting hole, the connecting screw passes through the connecting hole, and a connecting nut is threadedly sleeved on the connecting screw. The end of the connecting seat is also formed with a flange, which is overlapped on the fixed horizontal frame, and the tail end of the connecting seat is vertically fixed with an abutting square tube. The length of the fixed horizontal frame is greater than the length of the elevator shaft door opening so that it can be clamped on the outside of the elevator shaft door, and the abutting square tube abuts the inside of the elevator shaft. The fixing is achieved by clamping the fixed horizontal frame and the connecting seat on both the inside and outside of the elevator shaft.

[0016] Preferably, abutment shafts are symmetrically fixed on both sides of the connecting seat, the main beam includes parallel channel steels, and a plurality of reinforcements are welded equidistantly between the two channel steels, and the ends of the two channel steels are provided with docking grooves for connecting with the abutment shafts.

[0017] Preferably, a connecting plate is welded to one side of the pedal, and a connecting groove for use with the connecting plate is formed on the other side of the pedal. A pressure block is detachably screwed onto the adjusting frame. When laying the pedal, the side with the connecting plate faces the excavation side. When laying another pedal, the connecting groove of the other pedal is pressed against the connecting plate, and finally, the outer pedal is fixed and pressed together by the pressure block.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the retractable protective platform of the elevator shaft is slidingly set with two sets of clamping units by opening a guide groove at the bottom of the pedal, and an adjustment mechanism is set to cooperate with the traction rope to transmit the connection with the two sets of clamping units, so as to realize synchronous driving of the two clamping units to clamp and fix them on the two main beams respectively, thereby assisting in fixing the pedal and the main beam, significantly improving the stability of the pedal laying, preventing the pedal from moving during operation, enhancing the safety of use, and realizing a single adjustment mechanism to operate the wolf clamping unit at the same time, which is convenient and quick to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model provides a schematic diagram of the overall structure of a retractable protective platform for an elevator shaft;

[0020] Figure 2 This is a diagram of the connection structure between the main beam and the connecting seat in the utility model;

[0021] Figure 3 This is a structural diagram of the connecting seat in the utility model;

[0022] Figure 4 This is a structural diagram of the main beam in the utility model;

[0023] Figure 5 This is a structural diagram of the back side of the pedal in the utility model;

[0024] Figure 6 This is a front structural diagram of the pedal in this utility model.

[0025] Figure markings: 1. Fixed cross frame; 11. Connecting hole; 2. Connecting seat; 21. Abutting shaft; 22. Abutting square tube; 23. Flange; 24. Connecting screw; 3. Main beam; 31. Channel steel; 32. Docking notch; 33. Reinforcement; 4. Pedal; 401. Connecting plate; 402. Connecting groove; 41. Main frame; 42. Supporting panel; 43. Center frame; 431. Guide rail groove; 44. First clamping part; 45. Second clamping part; 451. Winding guide wheel; 46. Reeling frame; 461. Traction rope; 462. Adjusting shaft; 463. Fixing nut; 5. Adjusting frame; 6. Claw; 7. Pressure block. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1 -Attached Figure 6, further illustrating a specific embodiment of a retractable protective platform for an elevator shaft of the utility model, overcoming the problem in the prior art that the pedal cannot be completely clamped with the main beam when laid on it, and the pedal is prone to movement when construction workers walk on the pedal, affecting the overall stability of the protective platform and posing a safety risk. A retractable protective platform for an elevator shaft is provided, which assists in fixing the pedal to the main beam, significantly improving the stability of the pedal laying, preventing the pedal from moving during operation, and enhancing safety of use. At the same time, a single adjustment mechanism is used to simultaneously operate the wolf clamping unit, making operation convenient and quick. The utility model of a retractable protective platform for an elevator shaft is not limited to the description of the following embodiments.

[0027] A retractable protective platform for an elevator shaft comprises a fixed horizontal frame 1 arranged outside the elevator shaft doorway, two connecting seats 2 being fixedly connected to the fixed horizontal frame 1, and both connecting seats 2 being assembled and connected to a main beam 3, the other end of each main beam 3 being connected to a claw 6 via an adjusting frame 5, and the claw 6 abutting against the inner wall of the elevator shaft to secure the other end of the main beam 3;

[0028] The two main beams 3 are provided with pedals 4. The pedals 4 are multiple and are spliced ​​and laid on the main beams 3. A guide rail groove 431 is provided at the bottom of the pedals 4. An adjustment mechanism is provided at the middle of the guide rail groove 431.

[0029] The guide rail groove 431 is symmetrically provided with clamping units on both sides of the adjustment mechanism. The adjustment mechanism is connected to the two clamping units through a traction rope 461. The adjustment mechanism is used to drive the two clamping units to be clamped and fixed on the two main beams 3. Compared with the prior art in which the pedal 4 is directly laid on the main beam 3, by providing a guide rail groove 431 at the bottom of the pedal 4, two sets of clamping units are slidably set, and an adjustment mechanism is provided to cooperate with the traction rope 461 to be connected to the two sets of clamping units to achieve synchronous driving of the two clamping units to be clamped and fixed on the two main beams 3, respectively, to achieve auxiliary fixation between the pedal 4 and the main beam 3, significantly improving the stability of the pedal 4, preventing the pedal 4 from moving during operation, enhancing safety of use, and at the same time realizing a single adjustment mechanism to operate the wolf clamping units at the same time, which is convenient and quick to operate.

[0030] The clamping unit includes a first clamping portion 44 and a second clamping portion 45 slidably arranged on the guide rail groove 431, with the second clamping portion 45 being close to the end of the guide rail groove 431. A winding guide wheel 451 is rotated on the second clamping portion 45. When the clamping unit is fixedly clamped on the main beam 3, the first clamping portion 44 and the second clamping portion 45 in the clamping unit move toward each other to clamp and fix the main beam 3 from both sides of the main beam 3. The adjustment mechanism includes a winding rack 46 rotatably arranged in the middle section of the guide rail groove 431. The winding rack 46 is connected to one end of a traction rope 461, and the other end of the traction rope 461 passes through the winding guide wheel 451 and is connected to the first clamping portion 44. There are two traction ropes 461 connected to the winding frame 46, which respectively drive the clamping units located on both sides of the winding frame 46. A circular groove is provided at the surface of the pedal 4 corresponding to the winding frame 46. An adjusting shaft 462 is fixed on the winding frame 46, and the adjusting shaft 462 extends into the circular groove. A fixing nut 463 is spirally sleeved on the adjusting shaft 462 for locking it. When the adjusting mechanism cooperates with the traction rope 461 to drive the two groups of clamping units to be clamped and fixed on the main beam 3, first loosen the fixing nut 463, then rotate the adjusting shaft 462, and drive the traction rope 461 to be reeled through the adjusting shaft 462. At this time, the traction rope 461 first pulls the first clamping part 44 toward the main beam 3. When the first clamping part 44 abuts against one side of the main beam 3 and cannot be pulled, the traction rope 461 drives the second clamping part 45 to approach the main beam 3 through the winding guide wheel 451 and abuts against the other side of the main beam 3. At this time, the adjusting shaft 462 is fixed by the fixing nut 463.

[0031] The pedal 4 includes a main frame 41 , a center frame 43 is fixed in the main frame 41 , a guide rail groove 431 is formed on the center frame 43 , and a supporting panel 42 is welded to the main frame 41 .

[0032] The end of the connecting base 2 is horizontally connected to a connecting screw 24. The fixed horizontal frame 1 is provided with a connecting hole 11. The connecting screw 24 passes through the connecting hole 11, and a connecting nut is threadedly sleeved on the connecting screw 24. The end of the connecting base 2 is also formed with a flange 23, which overlaps the fixed horizontal frame 1. The tail end of the connecting base 2 is vertically fixed with an abutting square tube 22. The length of the fixed horizontal frame 1 is greater than the length of the elevator shaft door opening, so that it can be clamped on the outside of the elevator shaft door. The abutting square tube 22 abuts the inside of the elevator shaft. The fixing horizontal frame 1 and the connecting base 2 are respectively clamped on the inside and outside of the elevator shaft for fixation.

[0033] The connecting seat 2 is symmetrically fixed with abutment shafts 21 on both sides. The main beam 3 includes parallel channel steels 31, and multiple reinforcements 33 are welded equidistantly between the two channel steels 31. The ends of the two channel steels 31 are provided with docking notches 32 for connecting with the abutment shafts 21.

[0034] A connecting plate 401 is welded to one side of the pedal 4, and a connecting groove 402 is provided on the other side of the pedal 4 for use with the connecting plate 401. A pressure block 7 is detachably screwed onto the adjustment frame 5. When laying the pedal 4, the side with the connecting plate 401 is oriented toward the excavation side. When laying the next pedal 4, the connecting groove 402 of the other pedal 4 is pressed against the connecting plate 401, and finally, the outer pedal 4 is fixed and pressed together by the pressure block 7.

[0035] 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 to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A retractable protective platform for an elevator shaft, comprising a fixed horizontal frame (1) arranged outside the elevator shaft doorway, wherein two connecting seats (2) are fixedly connected to the fixed horizontal frame (1), and both connecting seats (2) are equipped with a main beam (3), characterized in that: The other end of the main beam (3) is connected to a clamping claw (6) via an adjusting frame (5), and the clamping claw (6) abuts against the inner wall of the elevator shaft to fix the other end of the main beam (3); Pedals (4) are laid on the two main beams (3), a guide rail groove (431) is provided at the bottom of the pedals (4), and an adjustment mechanism is provided at the middle of the guide rail groove (431); The guide rail groove (431) is symmetrically provided with clamping units on both sides of the adjustment mechanism. The adjustment mechanism is connected to the two clamping units via a traction rope (461). The adjustment mechanism is used to drive the two clamping units to clamp and fix them on the two main beams (3).

2. The retractable protective platform for an elevator shaft according to claim 1, characterized in that: The clamping unit comprises a first clamping portion (44) and a second clamping portion (45) slidably arranged on the guide rail groove (431), wherein the second clamping portion (45) is close to the end of the guide rail groove (431), and the second clamping portion (45) rotates around the winding guide wheel (451).

3. The retractable protective platform for an elevator shaft according to claim 2, characterized in that: The adjustment mechanism includes a winding frame (46) rotatably arranged at the middle position of the guide rail groove (431), the winding frame (46) is connected to one end of a traction rope (461), and the other end of the traction rope (461) passes through the winding guide wheel (451) and is connected to the first clamping portion (44).

4. The retractable protective platform for an elevator shaft according to claim 3, characterized in that: A circular groove is provided on the surface of the pedal (4) at a position corresponding to the winding frame (46); an adjusting shaft (462) is fixed on the winding frame (46), and the adjusting shaft (462) extends into the circular groove; a fixing nut (463) is spirally sleeved on the adjusting shaft (462) for locking the adjusting shaft.

5. The retractable protective platform for an elevator shaft according to claim 2, characterized in that: The pedal (4) comprises a main frame (41), a center frame (43) is fixed in the main frame (41), the guide rail groove (431) is formed on the center frame (43), and a supporting panel (42) is welded to the main frame (41).

6. The retractable protective platform for an elevator shaft according to claim 1, characterized in that: The end of the connecting seat (2) is horizontally connected to a connecting screw (24), the fixed horizontal frame (1) is provided with a connecting hole (11), the connecting screw (24) passes through the connecting hole (11), and a connecting nut is threadedly sleeved on the connecting screw (24), the end of the connecting seat (2) is also formed with a flange (23), the flange (23) is overlapped on the fixed horizontal frame (1), and the tail end of the connecting seat (2) is vertically fixed with an abutting square tube (22).

7. The retractable protective platform for an elevator shaft according to claim 6, characterized in that: Abutment shafts (21) are symmetrically fixed on both sides of the connecting seat (2); the main beam (3) includes parallel channel steels (31), and a plurality of reinforcement members (33) are welded equidistantly between the two channel steels (31); and the ends of the two channel steels (31) are provided with docking notches (32) for matching the abutment shafts (21) for connection.

8. The retractable protective platform for an elevator shaft according to claim 7, characterized in that: A connecting plate (401) is welded to one side of the pedal (4), a connecting groove (402) for use with the connecting plate (401) is provided on the other side of the pedal (4), and a pressure block (7) is detachably spirally connected to the adjusting frame (5).

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