Safety protection device for updating and fixing elevator shaft door of old elevator

Abstract

The utility model relates to the technical field of elevator shafts, and discloses an elevator shaft door fixing safety protection device for updating old elevators, which comprises an elevator shaft body, an I-shaped steel base is placed on one side of the elevator shaft body, and two vertical steel pipes are fixedly matched with the upper side of the I-shaped steel base. A first transverse steel pipe and a second transverse steel pipe located on the lower side of the first transverse steel pipe are clamped and matched between the two vertical steel pipes, and a first protective steel wire mesh is fixedly matched between the bottom of the first transverse steel pipe and the upper side of the I-shaped steel base. Through structural optimization, stress balance of the whole safety protection structure is basically achieved, the whole structure can stand independently, destructive fixing measures do not need to be taken around an elevator opening, the whole safety protection structure is made of assembly type materials, transfer between different workshops is facilitated, the safety protection turnover rate is improved, all the used materials are standing materials of construction enterprises, and the cost is low. And materials are convenient to purchase.

Description

Technical Field

[0001] This utility model relates to the technical field of elevator shafts, and in particular to a safety protection device for fixing elevator shaft doors during the replacement of old elevators. Background Technology

[0002] Safety protection of elevator door openings is a crucial aspect of ensuring the safety of personnel at construction sites and during daily elevator use. During construction, physical barriers, such as fences or guardrails, should be installed to reduce the risk of people accidentally entering elevator door openings and to prevent unnecessary items from entering. These barriers should be at least 1.5 meters high, with the bottom of the safety door no more than 50 millimeters from the ground, and should include a toe board.

[0003] However, in practical applications, the safety protection currently used on construction sites generally involves fixing the elevator door opening with expansion bolts. This type of safety protection has a good protective effect on unfinished concrete structures that have not undergone fine decoration construction. However, using this type of safety protection during the renovation of old elevators will cause damage to the fine decoration around the elevator door opening, increasing the cost and construction period of the old elevator renovation project. Moreover, the subsequent repair decoration will make the elevator hall and elevator anteroom look worse than the original. Therefore, a non-destructive fixed elevator shaft door safety protection is needed. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a safety protection device for fixing elevator shaft doors during the renovation of old elevators. It can achieve the force balance of the overall safety protection structure, and the overall structure can stand on its own without the need for destructive fixing measures around the elevator opening, thereby improving the turnover rate of safety protection.

[0005] To achieve the above objectives, this utility model provides a safety protection device for fixing elevator shaft doors during the renovation of old elevators. The device includes an elevator shaft body, an I-beam base placed on one side of the elevator shaft body, two vertical steel pipes fixedly fitted to the upper side of the I-beam base, a first horizontal steel pipe and a second horizontal steel pipe located below the first horizontal steel pipe being interlocked between the two vertical steel pipes, with the first and second horizontal steel pipes located on opposite sides of the vertical steel pipes. A first protective wire mesh is fixedly fitted between the bottom of the first horizontal steel pipe and the upper side of the I-beam base, and a second protective wire mesh is fixedly fitted between the bottom of the second horizontal steel pipe and the upper side of the I-beam base.

[0006] Optionally, the first protective wire mesh and the second protective wire mesh are provided with binding wires for binding the first protective wire mesh tightly to the vertical steel pipe and the first horizontal steel pipe, and binding the second protective wire mesh tightly to the vertical steel pipe and the second horizontal steel pipe.

[0007] Optionally, a first clamping plate is placed on the outer wall of the vertical steel pipe, a first fixing block is fixedly fitted at one end of the first clamping plate, a first fixing rod is fixedly fitted on both sides of the first fixing block, and a first lock head is provided at the other end of the first clamping plate.

[0008] Optionally, a first latch is rotatably fitted on one side of the first card plate, and the first end of the first latch engages with the first lock head.

[0009] Optionally, the second end of the first latch has two first through holes, and the first fixing rod is located inside the first through holes.

[0010] Optionally, a second card plate is fixedly fitted to one side of the first card plate, a second fixing block is fixedly fitted to one end of the second card plate, a second fixing rod is fixedly fitted to both sides of the second fixing block, and a second lock head is provided at the other end of the second card plate.

[0011] Optionally, a second latch is rotatably fitted on one side of the second plate, and the first end of the second latch engages with the second lock head; the inner sidewalls of the upper and lower distributed second latches respectively engage with the outer sidewalls of the first transverse steel pipe and the second transverse steel pipe.

[0012] Optionally, the second end of the second latch has two second through holes, and the second fixing rod is located inside the second through holes.

[0013] Compared with the prior art, the safety protection device for fixed elevator shaft doors in the renovation of old elevators of this utility model has at least the following beneficial effects:

[0014] Through structural optimization, the overall structure of the safety protection system is basically balanced by force. The overall structure is self-supporting and does not require destructive fixing measures around the elevator opening. The safety protection system uses prefabricated materials, which are easy to move between different work areas and improve the turnover rate of the safety protection system. All materials used are materials commonly used by construction companies, and material procurement is relatively convenient. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a structural schematic diagram of the safety protection device for fixing elevator shaft doors during the replacement of old elevators according to this utility model;

[0017] Figure 2This is a schematic diagram showing the connection between the first horizontal steel pipe, the second horizontal steel pipe, and the vertical steel pipe of this utility model.

[0018] Figure 3 This is a schematic diagram showing the connection between the I-beam base and the vertical steel pipe of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the first and second latches of this utility model.

[0020] Among them, 1-elevator shaft body, 2-I-beam base, 3-vertical steel pipe, 4-first horizontal steel pipe, 5-first protective wire mesh, 6-second horizontal steel pipe, 7-second protective wire mesh, 8-first lock, 9-first through hole, 10-second clamping plate, 11-second lock, 12-second lock head, 13-binding wire, 14-first clamping plate, 15-first fixing block, 16-first fixing rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] See below. Figures 1-4 This invention provides a detailed description of the safety protection device for fixed elevator shaft doors used in the replacement of old elevators.

[0023] This utility model discloses a safety protection device for fixing elevator shaft doors during the replacement of old elevators. The device includes an elevator shaft body 1, with an I-beam base 2 placed on one side of the elevator shaft body 1. Two vertical steel pipes 3 are fixedly fitted to the upper side of the I-beam base 2. A first horizontal steel pipe 4 and a second horizontal steel pipe 6 located below the first horizontal steel pipe 4 are interlocked between the two vertical steel pipes 3. The first horizontal steel pipe 4 and the second horizontal steel pipe 6 are located on opposite sides of the vertical steel pipes 3. A first protective wire mesh 5 is fixedly fitted between the bottom of the first horizontal steel pipe 4 and the upper side of the I-beam base 2, and a second protective wire mesh 7 is fixedly fitted between the bottom of the second horizontal steel pipe 6 and the upper side of the I-beam base 2.

[0024] Through structural optimization, the overall structure of the safety protection system is basically balanced by force. The overall structure is self-supporting and does not require destructive fixing measures around the elevator opening. The safety protection system uses prefabricated materials, which are easy to move between different work areas and improve the turnover rate of the safety protection system. All materials used are materials commonly used by construction companies, and material procurement is relatively convenient.

[0025] like Figure 1-4 As shown, the first protective wire mesh 5 and the second protective wire mesh 7 of this utility model are provided with binding wires 13, which are used to bind the first protective wire mesh 5 tightly to the vertical steel pipe 3 and the first horizontal steel pipe 4, and to bind the second protective wire mesh 7 tightly to the vertical steel pipe 3 and the second horizontal steel pipe 6. A first clamping plate 14 is placed on the outer wall of the vertical steel pipe 3. A first fixing block 15 is fixedly fitted to one end of the first clamping plate 14. A first fixing rod 16 is fixedly fitted to both sides of the first fixing block 15. A first lock head is provided at the other end of the first clamping plate 14. A first locking buckle 8 is rotatably fitted to one side of the first clamping plate 14. The first end of the first locking buckle 8 is engaged with the first lock head. Two first through holes 9 are opened at the second end of the first locking buckle 8. The first fixing rod 16 is located inside the first through holes 9.

[0026] A second plate 10 is fixedly fitted to one side of the first plate 14. A second fixing block is fixedly fitted to one end of the second plate 10. Second fixing rods are fixedly fitted to both sides of the second fixing block. A second lock head 12 is provided at the other end of the second plate 10. A second latch 11 is rotatably fitted to one side of the second plate 10. The first end of the second latch 11 engages with the second lock head 12. The inner walls of the upper and lower distributed second latches 11 engage with the outer walls of the first transverse steel pipe 4 and the second transverse steel pipe 6, respectively. Two second through holes are opened at the second end of the second latch 11, and the second fixing rods are located inside the second through holes.

[0027] Using an I-beam base 2 as the base, the vertical steel pipe 3, as a vertical component, is supported by 25mm HRB400 steel bars with a diameter of 150mm welded to the I-beam base 2. The first horizontal steel pipe 4 and the second horizontal steel pipe 6 are installed on both sides of the vertical component and connected to the vertical steel pipe 3 via the first locking buckle 8 and the second locking buckle 11. The bending moment on the I-beam base 2 caused by the gravity of the first horizontal steel pipe 4 and the second horizontal steel pipe 6 is balanced. Similarly, the first protective wire mesh 5 and the second protective wire mesh 7 are installed on both sides of the vertical component. The bending moment generated by the weight of the second protective wire mesh 7 on the I-beam base 2 can offset part of the bending moment generated by the weight of the first protective wire mesh 5. In this way, the I-beam base 2 only needs to resist part of the bending moment generated by the weight of the first protective wire mesh 5. The lateral bending strength of the I-beam base 2 is much greater than the bending moment load value, which ensures the stability of the overall structure. The overall structure can stand on its own and meet the function of non-destructive fixing. At the same time, the second protective wire mesh 7 can also serve as an installation point for safety warnings during construction, further enhancing the safety protection function.

[0028] Below, refer to Figures 1 to 4 Based on the above description of structural features, the working principle of the safety protection device for fixing elevator shaft doors in the renovation of old elevators according to this utility model is briefly described as follows:

[0029] Step 1: First, weld two 25mm HRB400 steel bars with a diameter of 150mm to the upper flange plate of the I-beam base 2;

[0030] Step 2: Move the H-beam base 2, which has been welded in Step 1, to the elevator doorway where safety protection needs to be installed, and place the H-beam base 2 in the middle of the elevator doorway.

[0031] Step 3: Insert the two vertical steel pipes 3 into the 25mm HRB400 steel bars welded to the upper flange of the I-beam base 2;

[0032] Step 4: On the side of the two vertical steel pipes 3 that is closer to the elevator door opening and higher than the elevator door opening, install the first horizontal steel pipe 4 and the second horizontal steel pipe 6, and tighten the first lock 8 and the second lock 11 to make the connection between the first horizontal steel pipe 4, the second horizontal steel pipe 6 and the vertical steel pipe 3 stable.

[0033] Step 5: Attach the first protective wire mesh 5 tightly to the vertical steel pipe 3 and the first horizontal steel pipe 4, and tie the binding wire 13 tightly. The spacing between the binding wires 13 shall not exceed 100mm.

[0034] Step 6: Attach the second protective wire mesh 7 tightly to the vertical steel pipe 3 and the second horizontal steel pipe 6, and tie the binding wire 13 tightly. The spacing between the binding wires 13 shall not exceed 100mm.

[0035] Step 7: Complete the installation of safety protection devices.

[0036] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any transformations or substitutions that can be understood by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of this utility model.

Claims

1. A safety protection device for fixed elevator shaft doors during the replacement of old elevators, characterized in that, The elevator shaft body (1) includes an I-beam base (2) placed on one side of the elevator shaft body (1). Two vertical steel pipes (3) are fixedly fitted on the upper side of the I-beam base (2). A first horizontal steel pipe (4) and a second horizontal steel pipe (6) located below the first horizontal steel pipe (4) are snapped together between the two vertical steel pipes (3). The first transverse steel pipe (4) and the second transverse steel pipe (6) are located on both sides of the vertical steel pipe (3); A first protective wire mesh (5) is fixedly fitted between the bottom of the first transverse steel pipe (4) and the upper side of the I-beam base (2), and a second protective wire mesh (7) is fixedly fitted between the bottom of the second transverse steel pipe (6) and the upper side of the I-beam base (2).

2. The safety protection device for fixed elevator shaft doors during the replacement of old elevators according to claim 1, characterized in that, The first protective wire mesh (5) and the second protective wire mesh (7) are provided with binding wire (13) for binding the first protective wire mesh (5) tightly to the vertical steel pipe (3) and the first horizontal steel pipe (4), and binding the second protective wire mesh (7) tightly to the vertical steel pipe (3) and the second horizontal steel pipe (6).

3. The safety protection device for fixed elevator shaft doors during the replacement of old elevators according to claim 1, characterized in that, The outer wall of the vertical steel pipe (3) is provided with a first card plate (14), one end of the first card plate (14) is fixedly fitted with a first fixing block (15), both sides of the first fixing block (15) are fixedly fitted with a first fixing rod (16), and the other end of the first card plate (14) is provided with a first lock.

4. The safety protection device for fixed elevator shaft doors during the replacement of old elevators according to claim 3, characterized in that, The first latch (8) is rotatably engaged on one side of the first latch (14), and the first end of the first latch (8) is engaged with the first lock head.

5. The safety protection device for fixed elevator shaft doors during the replacement of old elevators according to claim 4, characterized in that, The second end of the first latch (8) has two first through holes (9), and the first fixing rod (16) is located inside the first through holes (9).

6. The safety protection device for fixed elevator shaft doors during the replacement of old elevators according to claim 3, characterized in that, A second card plate (10) is fixedly fitted on one side of the first card plate (14), a second fixing block is fixedly fitted on one end of the second card plate (10), a second fixing rod is fixedly fitted on both sides of the second fixing block, and a second lock head (12) is provided on the other end of the second card plate (10).

7. The safety protection device for fixed elevator shaft doors during the replacement of old elevators according to claim 6, characterized in that, The second latch (11) is rotatably fitted on one side of the second latch (10), and the first end of the second latch (11) is engaged with the second lock head (12); The inner walls of the second locking buckles (11) distributed vertically engage with the outer walls of the first transverse steel pipe (4) and the second transverse steel pipe (6), respectively.

8. The safety protection device for fixed elevator shaft doors during the replacement of old elevators according to claim 7, characterized in that, The second end of the second latch (11) has two second through holes, and the second fixing rod is located inside the second through hole.

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