Car platform diversion sheave rope blocking protection device

Abstract

The utility model relates to the technical field of elevators, and particularly discloses a car platform diversion sheave rope blocking protection device which comprises a car platform diversion sheave. The side edge rope blocking mechanism comprises a U-shaped seat, a U-shaped plate and two nylon check blocks, the U-shaped seat is arranged at the bottom of the car platform diversion sheave and covers the car platform diversion sheave in a half mode, the U-shaped plate is fixedly connected to the side portion of the U-shaped seat in an inserted mode, and the two nylon check blocks are fixed to the two sides of the transverse portion of the U-shaped plate in the width direction respectively and tangent to a steel wire rope of the car platform diversion sheave; and the bottom rope blocking mechanism is a rope blocking shaft, and the rope blocking shaft is arranged in the U-shaped seat in a penetrating mode and located below the car bottom diversion sheave and is tangent to a steel wire rope on the car bottom diversion sheave. The rope blocking strength can be improved through the bottom rope blocking mechanism, rope skipping is prevented, and compared with the prior art, the protection function is high.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an anti-rope wheel rope retaining and protecting device for the bottom of an elevator car. Background Art

[0002] An anti-rope wheel is a movable pulley applied to an elevator, usually arranged on a car and a counterweight frame. According to requirements, the traction rope can bypass the anti-rope wheel to form different traction ratios, and its function is to reduce the output power and torque of the traction machine. According to the requirements of the Safety Code for the Manufacture and Installation of Elevators, a rope retaining and protecting device should be set for the anti-rope wheel at the bottom of the elevator car to prevent the steel wire rope from loosening and disengaging from the rope groove and foreign objects from entering between the steel wire rope and the rope groove. However, the existing rope retaining and protecting devices have the following deficiencies:

[0003] 1. There is only protection against disengagement from the rope groove in the wheel diameter direction, and no protection against disengagement from the rope groove in the wheel width direction;

[0004] 2. The material strength of the rope retaining device is relatively low, and the effect of preventing the steel wire rope from disengaging from the rope groove is not good;

[0005] 3. It cannot effectively prevent dust and foreign objects from entering between the steel wire rope and the rope groove from above;

[0006] In order to solve the above problems, the present application discloses an anti-rope wheel rope retaining and protecting device for the bottom of an elevator car. Content of the Utility Model

[0007] To overcome the deficiencies of the prior art, the utility model discloses an anti-rope wheel rope retaining and protecting device for the bottom of an elevator car.

[0008] To achieve the above object, the utility model is realized through the following technical solutions: an anti-rope wheel rope retaining and protecting device for the bottom of an elevator car, comprising: an anti-rope wheel for the bottom of the elevator car;

[0009] A side rope retaining mechanism, the side rope retaining mechanism includes a U-shaped seat, a U-shaped plate and two nylon retaining blocks. The U-shaped seat is arranged at the bottom of the anti-rope wheel for the bottom of the elevator car and semi-wraps it. The U-shaped plate is inserted and fixed on the side of the U-shaped seat. The two nylon retaining blocks are respectively fixed on both sides in the width direction of the transverse part of the U-shaped plate and are tangent to the steel wire rope of the anti-rope wheel for the bottom of the elevator car;

[0010] A bottom rope retaining mechanism, the bottom rope retaining mechanism is a rope retaining shaft, and the rope retaining shaft is arranged inside the U-shaped seat below the anti-rope wheel for the bottom of the elevator car and is tangent to the steel wire rope on the anti-rope wheel for the bottom of the elevator car.

[0011] Further preferably, first screw holes are respectively opened on both sides of the U-shaped plate, first waist-shaped holes are respectively opened on both sides of the U-shaped seat, a first bolt is screwed into the first waist-shaped hole and extends through the first screw hole, and a first nut is screwed onto the first bolt to fix the U-shaped plate and the U-shaped seat.

[0012] Further preferably, second screw holes are formed in both nylon stoppers, two second waist-shaped holes are formed in the transverse portion of the U-shaped plate, and a second bolt is screwed into each second waist-shaped hole and extends through the second screw hole, and a second nut is screwed onto the second bolt to fix the nylon stopper to the U-shaped plate.

[0013] Further preferably, the thickness of the nylon stopper is 3 mm.

[0014] Further preferably, a dust-proof mechanism for dust-proofing the bottom car counterweight sheave is fixed above the U-shaped seat.

[0015] Further preferably, the dust-proof mechanism is a Z-shaped dust-proof plate. A horizontal bending portion is formed outward on one side top of the U-shaped seat. A third screw hole is formed in the horizontal bending portion. A third waist-shaped hole is formed in the lower transverse portion of the Z-shaped dust-proof plate. A third bolt is screwed into the third waist-shaped hole and extends through the third screw hole, and a third nut is screwed onto the third bolt to fix the Z-shaped dust-proof plate to the horizontal bending portion.

[0016] Further preferably, external thread portions are formed at both ends of the rope blocking shaft extending to the outside of the U-shaped seat, and fourth nuts are respectively screwed onto the two external thread portions to fix the rope blocking shaft to the U-shaped seat.

[0017] The utility model realizes the following beneficial effects:

[0018] 1. By adding nylon stoppers to the side rope blocking mechanism in this application, it can effectively prevent the steel wire rope from slipping out of the groove during operation, so that the steel wire rope will not slide out along the wheel width direction from the gap between the counterweight sheave and the side rope blocking. Moreover, the nylon material has excellent mechanical properties, high mechanical strength, good toughness, good friction resistance and good corrosion resistance, and can protect the steel wire rope from being worn while preventing the steel wire rope from slipping out.

[0019] 2. By designing the dust-proof mechanism as a Z-shaped bending plate in this application, the structure is simple to manufacture and easy to install, and can effectively prevent dust and sundries from entering the rope groove.

[0020] 3. The bottom rope blocking mechanism involved in this application can increase the rope blocking strength, prevent skipping ropes, and is convenient for installation and adjustment.

[0021] As for other features and advantages of the present utility model, they will be described in the subsequent specification, and will be partially obvious from the specification, or will be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the structures pointed out in the specification and the drawings. Description of the Drawings

[0022] The accompanying drawings here are incorporated into the description and form a part of this description, showing embodiments in accordance with the disclosure of the present utility model, and are used together with the description to explain the principles of the present disclosure.

[0023] Figure 1 Schematic diagram of the overall structure disclosed by the present utility model;

[0024] Figure 2 Exploded structure schematic diagram of the present utility model;

[0025] In the figure: 10, car bottom compensating sheave; 20, side rope retaining mechanism; 21, U-shaped seat; 211, first waist-shaped hole; 212, horizontal bending part; 2121, third screw hole; 22, U-shaped plate; 221, second waist-shaped hole; 222, first screw hole; 23, nylon retaining block; 231, second screw hole; 30, rope retaining shaft; 40, Z-shaped dust-proof plate; 50, first bolt; 60, second bolt; 70, second nut; 80, third bolt; 90, third nut; 100, fourth nut. Detailed implementation mode

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0027] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating orientation or positional relationship are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model.

[0028] Embodiment

[0029] In order to solve certain defects existing in the elevator car bottom compensating sheave in the prior art, referring to Figure 1 - Figure 2 as shown, the present application discloses a rope retaining and protecting device for a car bottom compensating sheave, including: a car bottom compensating sheave 10;

[0030] a side rope retaining mechanism 20, the side rope retaining mechanism 20 includes a U-shaped seat 21, a U-shaped plate 22 and two nylon retaining blocks 23, the U-shaped seat 21 is arranged at the bottom of the car bottom compensating sheave 10 and half wraps it, the U-shaped plate 22 is inserted and fixed on the side part of the U-shaped seat 21, and the two nylon retaining blocks 23 are respectively fixed on both sides in the width direction of the transverse part of the U-shaped plate 22 and are tangent to the steel wire rope of the car bottom compensating sheave 10;

[0031] In this way, it can effectively prevent the wire rope from slipping out of the groove during operation, preventing the wire rope from sliding out along the width direction of the wheel from the gap between the reverse rope wheel and the side rope retainer. Moreover, the nylon material has excellent mechanical properties, high mechanical strength, good toughness, good friction resistance, and good corrosion resistance, which can protect the wire rope from wear while preventing it from slipping out.

[0032] Bottom rope retaining mechanism. The bottom rope retaining mechanism is a rope retaining shaft 30. The rope retaining shaft 30 is arranged inside the U-shaped seat 21 below the bottom reverse rope wheel 10 of the car and is tangent to the wire rope on the bottom reverse rope wheel 10, which can increase the rope retaining strength and prevent the rope from skipping.

[0033] In this embodiment, the present application respectively opens first screw holes 222 on two side parts of the U-shaped plate 22, and respectively opens first waist-shaped holes 211 on two side parts of the U-shaped seat 21. A first bolt 50 is screwed into the first waist-shaped hole 211 and extends through the first screw hole 222, and a first nut (not shown) is screwed onto the first bolt 50 to fix the U-shaped plate 22 and the U-shaped seat 21. In this way, the U-shaped plate 22 and the U-shaped seat 21 can be quickly installed.

[0034] In this embodiment, the two nylon blocks 23 of the present application have a thickness of 3 mm and have better use effects. Second screw holes 231 are respectively opened on the two nylon blocks 23, and two second waist-shaped holes 221 are opened on the transverse part of the U-shaped plate 22. A second bolt 60 is screwed into each second waist-shaped hole 221 and extends through the second screw hole 231, and a second nut 70 is screwed onto the second bolt 60 to fix the nylon block 23 and the U-shaped plate 22. This installation method is convenient and easy to replace.

[0035] In this embodiment, a dust-proof mechanism for dust-proofing the bottom reverse rope wheel 10 is fixed above the U-shaped seat 21, which can effectively prevent dust and sundries from entering the rope groove.

[0036] As a preferred solution, the dust-proof mechanism of the present application is a Z-shaped dust-proof plate 40. A horizontal bending part 212 is formed outward on one side top of the U-shaped seat 21, and a third screw hole 2121 is opened on the horizontal bending part 212. A third waist-shaped hole is opened on the lower transverse part of the Z-shaped dust-proof plate 40. A third bolt 80 is screwed into the third waist-shaped hole and extends through the third screw hole 2121, and a third nut 90 is screwed onto the third bolt 80 to fix the Z-shaped dust-proof plate 40 and the horizontal bending part 212. This structure is simple to manufacture and easy to install.

[0037] In this embodiment, external thread parts (not shown) are opened at both ends of the rope retaining shaft 30 extending to the outside of the U-shaped seat 21, and fourth nuts 100 are respectively screwed onto the two external thread parts to fix the rope retaining shaft 30 and the U-shaped seat 21. In this way, the rope retaining shaft 30 can be quickly installed with the U-shaped seat 21.

[0038] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. 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 may be combined in a suitable manner in any one or more embodiments or examples.

[0039] The above embodiments are only for illustrating the technical concept and features of the present utility model, and the purpose is to enable those skilled in the art of this technology to understand the content of the present utility model and implement it accordingly, and it cannot be used to limit the protection scope of the present utility model. Any equivalent transformation or modification made according to the spirit and essence of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A rope retaining and protecting device for the counterweight sheave at the bottom of a car, characterized in that, Comprising: Car bottom deflecting sheave; Side rope retaining mechanism, the side rope retaining mechanism includes a U-shaped seat, a U-shaped plate and two nylon rope retaining blocks. The U-shaped seat is arranged at the bottom of the car bottom deflecting sheave and half wraps it. The U-shaped plate is inserted and fixed on the side of the U-shaped seat. The two nylon rope retaining blocks are respectively fixed on both sides in the width direction of the transverse part of the U-shaped plate and are tangent to the wire rope of the car bottom deflecting sheave; Bottom rope retaining mechanism, the bottom rope retaining mechanism is a rope retaining shaft. The rope retaining shaft is arranged inside the U-shaped seat below the car bottom deflecting sheave and is tangent to the wire rope on the car bottom deflecting sheave.

2. The anti-rope-blocking protection device for the bottom of the car according to claim 1, characterized in that, Two side parts of the U-shaped plate are respectively provided with first screw holes. Two side parts of the U-shaped seat are respectively provided with first waist-shaped holes. A first bolt is screwed into the first waist-shaped hole and extends through the first screw hole, and a first nut is screwed on the first bolt to fix the U-shaped plate and the U-shaped seat.

3. The anti-rope-blocking protection device for the bottom of the car according to claim 1, characterized in that, Both of the two nylon rope retaining blocks are provided with second screw holes. Two second waist-shaped holes are provided on the transverse part of the U-shaped plate. A second bolt is screwed into each second waist-shaped hole and extends through the second screw hole, and a second nut is screwed on the second bolt to fix the nylon rope retaining block and the U-shaped plate.

4. A counterweight sheave rope retaining protection device for a car bottom according to claim 3, characterized in that, The thickness of the nylon rope retaining block is 3mm.

5. A rope retaining and protecting device for a counterweight sheave at the bottom of a car, characterized in that, A dust-proof mechanism for dust-proofing the car bottom deflecting sheave is fixed above the U-shaped seat.

6. The anti-rope-blocking protection device for the bottom of the car according to claim 5, characterized in that, The dust-proof mechanism is a Z-shaped dust-proof plate. A horizontal bending part extends outward from one side top of the U-shaped seat. A third screw hole is provided on the horizontal bending part. A third waist-shaped hole is provided on the lower transverse part of the Z-shaped dust-proof plate. A third bolt is screwed into the third waist-shaped hole and extends through the third screw hole, and a third nut is screwed on the third bolt to fix the Z-shaped dust-proof plate and the horizontal bending part.

7. A rope retaining and protecting device for the counterweight sheave at the bottom of a car, characterized in that, Both ends of the rope retaining shaft extend to the outside of the U-shaped seat and are provided with external thread parts. Fourth nuts are respectively screwed on the two external thread parts to fix the rope retaining shaft and the U-shaped seat.

Images