Anti-falling rod for elevator maintenance

Abstract

The elevator maintenance anti-falling rod comprises two anti-falling rod bodies, an adjusting mechanism, two blocking frames, two limiting plates, a winding mechanism and a rope guiding mechanism, the two anti-falling rod bodies are arranged side by side, the adjusting mechanism is arranged on the two anti-falling rod bodies, and the adjusting mechanism comprises a rotating pipe and a driving structure; the two blocking frames are arranged at the ends, away from the rotating pipe, of the two anti-falling rod bodies correspondingly. The two limiting plates are respectively arranged on one sides of the two anti-falling rod bodies; the winding mechanism is arranged on the other side of the two anti-falling rod bodies and comprises two movable supporting plates, a winding rod, a remote control motor and a guide structure. The rope guiding mechanism is arranged on the winding mechanism and located above the rotating pipe. Therefore, the stability can be improved, overturning and shaking cannot occur under the condition that the rope is pulled, meanwhile, the rope can be directly wound, a maintainer does not need to climb upwards strenuously, labor is saved, and safety is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator maintenance anti-falling, in particular to an elevator maintenance anti-falling rod. Background Art

[0002] Nowadays, the number of elevators is increasing, and they are used more and more frequently. Therefore, the maintenance of elevators is particularly important. Elevator maintenance workers need to enter the elevator shaft to inspect the elevator. Usually, there is a guardrail on the top of the elevator, but relying solely on the guardrail for protection still poses a risk of falling for maintenance workers.

[0003] At present, when maintenance workers are inspecting elevators, they will install anti-fall bars, which will play a more effective protective role in conjunction with guardrails. The elevator maintenance anti-fall bars in the existing technology are connected to the maintenance workers through ropes, and the anti-fall bars are blocked outside the elevator entrance. When the maintenance worker falls, the rope is pulled by force, and the anti-fall bar is stuck outside the elevator entrance to prevent the maintenance worker from continuing to fall.

[0004] Due to the rod-shaped structure of the anti-fall rod, it has poor stability after being pulled by the rope and may shake, affecting the safety of the falling maintenance worker. In addition, although the rope can pull the falling maintenance worker, the maintenance worker still needs to climb hard to return to the safe position at the elevator entrance, which is very dangerous and difficult to climb. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, the purpose of the utility model is to propose an elevator maintenance anti-fall rod, which can improve stability and will not flip or shake when subjected to rope tension. At the same time, the rope can be directly reeled in, eliminating the need for maintenance workers to climb up laboriously, saving effort and increasing safety.

[0007] In order to achieve the above-mentioned purpose, the utility model proposes an elevator maintenance anti-fall rod, comprising two anti-fall rod bodies, an adjustment mechanism, two blocking frames, two limiting plates, a winding mechanism and a guide rope mechanism, wherein the two anti-fall rod bodies are arranged in parallel, the adjustment mechanism is arranged on the two anti-fall rod bodies, the adjustment mechanism comprises a rotating tube and a driving structure, wherein the rotating tube is arranged between the two anti-fall rod bodies, the driving structure is arranged on the rotating tube, and the driving structure is connected to the two anti-fall rod bodies; the two blocking frames are respectively arranged at one end of the two anti-fall rod bodies away from the rotating tube; the two limiting plates They are respectively arranged on one side of the two anti-fall rod bodies; the winding mechanism is arranged on the other side of the two anti-fall rod bodies, and the winding mechanism includes two movable support plates, a winding rod, a remote control motor and a guide structure, wherein the two movable support plates are respectively arranged at the other end of the two anti-fall rod bodies, the winding rod is rotatably arranged between the two movable support plates, the remote control motor is arranged at one end of the winding rod, the remote control motor is connected to one side of the movable support plate, and the guide structure is arranged on the two movable support plates; the guide rope mechanism is arranged on the winding mechanism, and the guide rope mechanism is located above the rotating tube.

[0008] According to the elevator maintenance anti-fall rod of the utility model, stability can be improved, and it will not flip or shake when subjected to rope tension. At the same time, the rope can be directly reeled in, and maintenance workers do not need to climb up laboriously, which saves labor and is safer.

[0009] In addition, the elevator maintenance anti-fall rod proposed in the application may also have the following additional technical features:

[0010] Specifically, one end of each of the two retaining frames is provided with a friction-resistant pad.

[0011] Specifically, the driving structure includes a bidirectional threaded tube, a square tube and a square rod, wherein the bidirectional threaded tube is arranged through the rotating tube, and both ends of the bidirectional threaded tube are located in the two anti-fall rod bodies and are respectively threadedly connected to the two anti-fall rod bodies, the square tube is arranged in the bidirectional threaded tube, and the square rod is arranged in the square tube, one end of the square tube is connected to the anti-fall rod body on one side, and one end of the square rod is connected to the anti-fall rod body on the other side.

[0012] Specifically, the guide structure includes two limit grooves, two guide rods, a vertical plate and a limit block, wherein the two limit grooves are respectively opened on the two anti-fall rod bodies, one end of the two movable support plates is respectively located in the two limit grooves, the two guide rods are respectively arranged in the two limit grooves, and respectively pass through the two movable support plates, the vertical plate is arranged on one side of the winding rod, the two ends of the vertical plate are respectively connected to the two movable support plates, the limit block is arranged at one end of the vertical plate, an annular groove is opened on the rotating tube, and the limit block is located in the annular groove.

[0013] Specifically, the rope guide mechanism includes an arc-shaped plate, two mounting plates and a roller, wherein the arc-shaped plate is arranged on the vertical plate, the arc-shaped plate is located above the rotating tube, the two mounting plates are respectively arranged at the other end of the arc-shaped plate, and the roller is rotatably arranged between the two mounting plates.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a structural diagram of an elevator maintenance anti-fall rod according to an embodiment of the present invention;

[0017] Figure 2 A partial perspective view of an elevator maintenance anti-fall rod according to an embodiment of the present invention;

[0018] Figure 3 A cross-sectional view of an elevator maintenance anti-fall rod according to an embodiment of the present invention;

[0019] Figure 4 A side sectional view of a transverse drive structure according to an embodiment of the present invention;

[0020] Figure 5 This is a side sectional view of an anti-fall rod body according to an embodiment of the present invention.

[0021] As shown in the figure: 1. Anti-fall rod body; 2. Adjustment mechanism; 21. Rotating tube; 22. Driving structure; 221. Bidirectional threaded tube; 222. Square tube; 223. Square rod; 3. Stop frame; 31. Friction-resistant pad; 4. Limiting plate; 5. Winding mechanism; 51. Movable support plate; 52. Winding rod; 53. Remote control motor; 54. Guide structure; 541. Limiting groove; 542. Guide rod; 543. Vertical plate; 544. Limiting block; 6. Guide rope mechanism; 61. Arc plate; 62. Mounting plate; 63. Roller. DETAILED DESCRIPTION

[0022] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0023] The elevator maintenance anti-fall rod of the utility model embodiment is described below with reference to the accompanying drawings.

[0024] like Figure 1-Figure 5 As shown, the elevator maintenance anti-fall rod of the embodiment of the present utility model includes two anti-fall rod bodies 1, an adjustment mechanism 2, two blocking frames 3, two limiting plates 4, a winding mechanism 5 and a guide rope mechanism 6.

[0025] The two anti-fall rod bodies 1 are arranged in parallel, and the adjustment mechanism 2 is arranged on the two anti-fall rod bodies 1 . The adjustment mechanism 2 includes a rotating tube 21 and a driving structure 22 .

[0026] The rotating tube 21 is arranged between the two anti-falling rod bodies 1 , the driving structure 22 is arranged on the rotating tube 21 , and the driving structure 22 is connected to the two anti-falling rod bodies 1 .

[0027] It should be noted that the rotating tube 21 is connected to the driving structure 22, which is used to control the driving structure 22 from the outside. The driving structure 22 is connected to the two anti-fall rod bodies 1. The distance between the two anti-fall rod bodies 1 is adjusted to adapt to the use of elevator entrances of different widths, ensuring that the anti-fall function can be achieved by blocking outside the elevator entrance.

[0028] The two retaining frames 3 are respectively arranged at one end of the two anti-falling rod bodies 1 away from the rotating tube 21 .

[0029] It should be noted that the retaining frame 3 is an L-shaped structure, which can support the anti-fall rod body 1, while increasing the contact area with the ground and the wall of the elevator entrance, improving the stability of the elevator maintenance anti-fall rod, and effectively avoiding the shaking and instability of the anti-fall rod caused by the force during falling.

[0030] The two limiting plates 4 are respectively arranged on one side of the two anti-fall rod bodies 1 .

[0031] It should be noted that the limit plate 4 is used to engage in the elevator entrance, which can prevent the anti-fall rod body 1 from shaking laterally and falling through the elevator entrance. The limit plate 4 can prevent the anti-fall rod body 1 from shaking laterally, and further improve the stability of the entire elevator maintenance anti-fall rod.

[0032] The winding mechanism 5 is arranged on the other side of the two anti-fall rod bodies 1 , and the winding mechanism 5 includes two movable support plates 51 , a winding rod 52 , a remote control motor 53 and a guide structure 54 .

[0033] Among them, two movable support plates 51 are respectively arranged at the other end of the two anti-fall rod bodies 1, the winding rod 52 is rotatably arranged between the two movable support plates 51, the remote control motor 53 is arranged at one end of the winding rod 52, the remote control motor 53 is connected to one side of the movable support plate 51, and the guide structure 54 is arranged on the two movable support plates 51.

[0034] It should be noted that the remote control motor 53 can be composed of an infrared remote control receiver, a motor and a remote control, so that when the maintenance worker falls, he can directly control it through the remote control. The infrared remote control receiver receives the signal from the remote control and controls the operation of the motor.

[0035] It can be understood that the remote control motor 53 is connected to the winding rod 52, and the winding rod 52 can be directly connected to the rope. The maintenance worker can directly remotely control the remote control motor 53. The remote control motor 53 winds up the rope to pull the maintenance worker upward, which can prevent the maintenance worker from climbing up. The movable support plate 51 moves on the anti-fall rod body 1 through the guide structure 54, which can ensure that the entire winding mechanism 5 is fixed in its original position when the anti-fall rod body 1 extends to both sides, and will not cause the connected rope to shift.

[0036] The rope guiding mechanism 6 is provided on the winding mechanism 5 , and the rope guiding mechanism 6 is located above the rotating tube 21 .

[0037] It can be understood that the rope guide mechanism 6 plays a function of supporting and guiding the rope.

[0038] Wherein, one end of each of the two retaining frames 3 is provided with a friction-resistant pad 31 .

[0039] It is understandable that the friction-resistant pad 31 can be made of rubber material to improve the friction resistance of the retaining frame 3 and increase its service life.

[0040] Specifically, the elevator maintenance worker places the anti-fall rod body 1 outside the elevator entrance and allows the limit plate 4 to be engaged into the elevator entrance. If the width of the elevator entrance is wider, the driving structure 22 can be controlled by the rotating tube 21 to allow the two anti-fall rod bodies 1 to extend to both sides to increase the overall length. At the same time, the limit plate 4 is placed on the inner wall of the elevator entrance for limiting, so that the friction-resistant pad 31 of the retaining frame 3 is only placed on the wall outside the elevator entrance.

[0041] The maintenance worker fixes the rope on the reeling rod 52, then passes the rope around the rope guide mechanism 6 and is tied to his body. The maintenance worker enters the elevator shaft to inspect the elevator. If the maintenance worker accidentally falls, since the rope is connected to the reeling rod 52, the reeling rod 52 is blocked by the anti-fall rod body 1, and the maintenance worker is pulled by the rope. The maintenance worker remotely controls the remote control motor 53 to drive the reeling rod 52 to rotate and reel in the rope, and pulls the maintenance worker upward to the elevator entrance. The maintenance worker climbs out of the shaft and escapes from danger.

[0042] In one embodiment of the present invention, Figure 3 and Figure 5 As shown, the driving structure 22 includes a bidirectional threaded tube 221 , a square tube 222 and a square rod 223 .

[0043] Among them, the bidirectional threaded tube 221 is arranged on the rotating tube 21, and the two ends of the bidirectional threaded tube 221 are located in the two anti-fall rod bodies 1 and are respectively threadedly connected to the two anti-fall rod bodies 1. The square tube 222 is arranged in the bidirectional threaded tube 221, and the square rod 223 is arranged in the square tube 222. One end of the square tube 222 is connected to the anti-fall rod body 1 on one side, and one end of the square rod 223 is connected to the anti-fall rod body 1 on the other side.

[0044] It should be noted that the two ends of the bidirectional threaded tube 221 are respectively threadedly connected to the two anti-fall rod bodies 1. When the bidirectional threaded tube 221 rotates, due to the connection restriction of the square tube 222 and the square rod 223, the two anti-fall rod bodies 1 cannot rotate relative to each other. Therefore, under the rotation control of the bidirectional threaded tube 221, the two anti-fall rod bodies 1 can only move laterally in opposite directions.

[0045] Specifically, the maintenance worker can drive the two anti-fall rod bodies 1 by controlling the rotation of the bidirectional threaded tube 221, causing the two anti-fall rod bodies 1 to move in opposite directions, and adjust the length of the overall anti-fall rod to adapt to elevator entrances of different widths, and also allow the limit plate 4 to be movably engaged in the elevator entrance.

[0046] In one embodiment of the present invention, Figure 1 、 Figure 2 and Figure 4 As shown, the guide structure 54 includes two limiting grooves 541 , two guide rods 542 , a vertical plate 543 and a limiting block 544 .

[0047] Among them, two limiting grooves 541 are respectively opened on the two anti-fall rod bodies 1, one end of the two movable support plates 51 is respectively located in the two limiting grooves 541, two guide rods 542 are respectively arranged in the two limiting grooves 541, and respectively pass through the two movable support plates 51, the vertical plate 543 is arranged on one side of the winding rod 52, and the two ends of the vertical plate 543 are respectively connected to the two movable support plates 51, the limiting block 544 is arranged at one end of the vertical plate 543, and an annular groove is opened on the rotating tube 21, and the limiting block 544 is located in the annular groove.

[0048] It should be noted that the movable support plate 51 is connected to the limit groove 541 through the guide rod 542 and can only move horizontally in the limit groove 541. When the two anti-fall rod bodies 1 move, the movable support plate 51 may still move with the movement due to the influence of friction. Therefore, a vertical plate 543 is provided to connect the limit block 544, and the limit block 544 is engaged in the annular groove. Through this structure, the movable support plate 51 can be further restricted to ensure that the winding rod 52 always remains in the middle area of ​​the entire anti-fall rod, which is more stable and avoids the rope from shaking due to random movement.

[0049] In addition, the annular groove is an annular structure and is provided on the rotating tube 21 , which not only serves to limit the limit block 544 but also does not affect the rotation control of the rotating tube 21 itself.

[0050] Specifically, when the maintenance worker controls the movement of the two anti-fall rod bodies 1 through the rotating tube 21 and the driving structure 22, the two anti-fall rod bodies 1 can be prevented from moving too much and separating through the guidance of the guide rod 542 and the limit groove 541, and the movement range can be limited. At the same time, the limiting of the annular groove and the limit block 544 can ensure the stability of the winding rod 52, avoid the rope connected to the winding rod 52 from shaking, and improve the safety of the maintenance worker.

[0051] In one embodiment of the present invention, Figure 1 and Figure 4 As shown, the rope guiding mechanism 6 includes an arc-shaped plate 61 , two mounting plates 62 and a roller 63 .

[0052] The arc plate 61 is arranged on the vertical plate 543 , and the arc plate 61 is located above the rotating tube 21 . Two mounting plates 62 are respectively arranged at the other end of the arc plate 61 , and the roller 63 is rotatably arranged between the two mounting plates 62 .

[0053] It can be understood that the arc plate 61 is an arc-shaped structure, and the top can guide and support the rope. The surface of the arc structure is smooth, which reduces the cutting and wear of the rope and protects the rope. The mounting plate 62 can limit the guided rope to avoid the shaking of the rope. The roller 63 replaces the support of the rope at a right angle to the ground at the elevator entrance, reducing the wear of the rope.

[0054] Specifically, after the maintenance worker fixes the rope to the reel-up rod 52, he allows the rope to pass through the top of the arc plate 61, confined between the mounting plates 62, and wrapped around the roller 63. Finally, the rope is connected to the maintenance worker and fixed, so that the contact surface between the rope and the device is smooth, reducing the friction of the rope, improving the stability and durability of the rope, and further improving the safety of the maintenance worker when using it.

[0055] In summary, the elevator maintenance anti-fall rod of the embodiment of the utility model can improve stability and will not flip or shake when subjected to rope tension. At the same time, the rope can be directly reeled in, and maintenance workers do not need to climb up laboriously, which saves labor and is safer.

[0056] In this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0058] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. An elevator maintenance anti-fall rod, characterized in that: It includes two anti-fall rod bodies, an adjustment mechanism, two blocking frames, two limit plates, a winding mechanism and a guide rope mechanism, among which, The two anti-fall rods are arranged in parallel, and the adjustment mechanism is arranged on the two anti-fall rods. The adjustment mechanism includes a rotating tube and a driving structure, wherein: The rotating tube is arranged between the two anti-falling rod bodies, the driving structure is arranged on the rotating tube, and the driving structure is connected to the two anti-falling rod bodies; The two blocking frames are respectively arranged at one end of the two anti-falling rod bodies away from the rotating tube; The two limit plates are respectively arranged on one side of the two anti-fall rod bodies; The reeling mechanism is arranged on the other side of the two anti-fall rod bodies, and the reeling mechanism includes two movable support plates, a reeling rod, a remote control motor and a guide structure, wherein: The two movable support plates are respectively arranged at the other ends of the two anti-fall rod bodies, the winding rod is rotatably arranged between the two movable support plates, the remote control motor is arranged at one end of the winding rod, the remote control motor is connected to one side of the movable support plate, and the guide structure is arranged on the two movable support plates; The rope guiding mechanism is arranged on the winding mechanism, and the rope guiding mechanism is located above the rotating tube.

2. The elevator maintenance anti-fall rod according to claim 1, characterized in that: One end of each of the two retaining frames is provided with a friction-resistant pad.

3. The elevator maintenance anti-fall rod according to claim 1, characterized in that: The driving structure includes a bidirectional threaded tube, a square tube and a square rod, wherein: The bidirectional threaded tube is arranged on the rotating tube, and both ends of the bidirectional threaded tube are located in the two anti-fall rod bodies and are respectively threadedly connected to the two anti-fall rod bodies. The square tube is arranged in the bidirectional threaded tube, and the square rod is arranged in the square tube. One end of the square tube is connected to the anti-fall rod body on one side, and one end of the square rod is connected to the anti-fall rod body on the other side.

4. The elevator maintenance anti-fall rod according to claim 1, characterized in that: The guide structure includes two limiting grooves, two guide rods, a vertical plate and a limiting block, wherein: The two limit grooves are respectively opened on the two anti-fall rod bodies, one end of the two movable support plates is respectively located in the two limit grooves, the two guide rods are respectively arranged in the two limit grooves, and respectively pass through the two movable support plates, the vertical plate is arranged on one side of the winding rod, and the two ends of the vertical plate are respectively connected to the two movable support plates, the limit block is arranged at one end of the vertical plate, and an annular groove is opened on the rotating tube, and the limit block is located in the annular groove.

5. The elevator maintenance anti-fall rod according to claim 4, characterized in that: The rope guide mechanism includes an arc-shaped plate, two mounting plates and rollers, wherein: The arc plate is arranged on the vertical plate, the arc plate is located above the rotating tube, the two mounting plates are respectively arranged at the other end of the arc plate, and the roller is rotatably arranged between the two mounting plates.

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