An elevator buffering device and an elevator system. The elevator buffering device includes a multi-stage buffer including: a body bracket; and a plurality of buffering elements mounted on the body bracket; wherein each of the buffering elements is at different heights when they are driven to operating positions in a vertical direction; a drive mechanism including: a power source for powering the drive mechanism; and a telescopic push rod pivotally connected to the body bracket; and a control element for controlling a telescopic length of the telescopic push rod of the drive mechanism so that one of the plurality of buffering elements on the body bracket is driven to the operating position.

According to one embodiment of the present invention, there is provided a buffer cap for an elevator to be placed on an upper surface of a buffer provided below a counterweight for an elevator so as to be opposed to a lower surface of the counterweight, which is configured to restrict lowering of the counterweight, the buffer cap including: a support column; an upper plate provided to an upper end of the support column; and a lower plate provided to a lower end of the support column, wherein the support column is formed of flat plates, and each of the upper plate and the lower plate is formed of a flat plate, and wherein the flat plates for forming the support column, and the flat plates for the support column and the upper plate or the lower plate are fittable and disassemblable.

An overwinding buffer device and method are employed for a vertical hoisting system including a derrick and a hoisting container. A hydraulic buffer device is disposed on the derrick, the hydraulic buffer device including at least one buffering hydraulic cylinder and buffering pressure rollers disposed corresponding to the buffering hydraulic cylinders; the buffering hydraulic cylinders are disposed on the derrick; piston rods of the buffering hydraulic cylinders are disposed horizontally and outer ends of the piston rods face towards the hoisting container; the buffering pressure rollers are horizontally fixed on an outer side wall of the hoisting container and arced surfaces of the buffering pressure rollers face towards the piston rods of the buffering hydraulic cylinders.

According to one embodiment of the present invention, there is provided a buffer cap for an elevator to be placed on an upper surface of a buffer provided below a counterweight for an elevator so as to be opposed to a lower surface of the counterweight, which is configured to restrict lowering of the counterweight, the buffer cap including: a support column; an upper plate provided to an upper end of the support column; and a lower plate provided to a lower end of the support column, wherein the support column is formed of flat plates, and each of the upper plate and the lower plate is formed of a flat plate, and wherein the flat plates for forming the support column, and the flat plates for the support column and the upper plate or the lower plate are fittable and disassemblable.

Elevator overrun systems having a first body arranged to be fixedly mounted to a portion of an elevator system or elevator shaft, a second body positioned within the first body and moveable from a deployed state to a retracted state relative to the first body, and a limit switch located at a distal end of the second body, the limit switch configured to interact with a component of an elevator system to prevent movement of an elevator car.

A device for cage jamming buffer of large-tonnage hoisting system of ultra-deep shaft is provided. End cage jamming buffer mechanisms are added at both ends of an automatic wire rope tension balancing mechanism, wherein the end cage jamming buffer mechanisms include an end buffer module and an end fixing module, and the end buffer module and the end fixing module are respectively mounted on shafts of the automatic wire rope tension balancing mechanisms at two ends. The end buffer module mainly consists of a buffer bearing pedestal, a limit block, a buffer block, and a stop block sequentially mounted on the shaft of the automatic wire rope tension balancing mechanism at one end. The end fixing module mainly consists of a fixing bearing pedestal and a fixing block mounted on the shaft, wherein the fixing bearing pedestal is connected to a transmission gear by an adjusting bolt.

An elevator system includes a hoistway, the hoistway having a plurality of landing floors each landing floor having a landing floor door. One or more guide rails are located in the hoistway to guide one or more elevator system components along the hoistway. An absorber is located at a hoistway pit and is supportive of a guide rail of the one or more guide rails. The absorber is configured to absorb loads imparted to the guide rail due to vertical translation and/or compression of the hoistway. A method of supporting a guide rail of an elevator system includes locating an absorber in an elevator hoistway in operable communication with a guide rail of an elevator system. Vertically-acting loads are transmitted from the guide rail to the absorber via the absorber piston thereby increasing a fluid pressure in the housing chamber.

A device for cage jamming buffer of large-tonnage hoisting system of ultra-deep shaft is provided. End cage jamming buffer mechanisms are added at both ends of an automatic wire rope tension balancing mechanism, wherein the end cage jamming buffer mechanisms include an end buffer module and an end fixing module, and the end buffer module and the end fixing module are respectively mounted on shafts of the automatic wire rope tension balancing mechanisms at two ends. The end buffer module mainly consists of a buffer bearing pedestal, a limit block, a buffer block, and a stop block sequentially mounted on the shaft of the automatic wire rope tension balancing mechanism at one end. The end fixing module mainly consists of a fixing bearing pedestal and a fixing block mounted on the shaft, wherein the fixing bearing pedestal is connected to a transmission gear by an adjusting bolt, and the fixing block is located between the transmission gear and the fixing bolt.

The elevator comprises guide rails extending along a height of a shaft, a car and/or a counterweight moving upwards and downwards in the shaft and being glidingly supported on the guide rails. A stop block is attached to at least one guide rail in order to prevent movement of the car and/or the counterweight beyond the level of the stop block. The stop block comprises a buffer attached to a bottom plate. The buffer comprises a slot receiving a guide portion of the guide rail. The bottom plate supports the buffer on the guide rail.

An elevator buffer system includes a buffer (44), a frame (30) spaced above the buffer, a platform (48) spaced above the frame, and a pre-compressed pad device (52) disposed between the frame and the platform and engaged to one of the frame and the platform. The system is constructed to move between a non-strike position, where the pre-compressed pad device is spaced from the other of the frame and the platform; a mid-strike position, where the pre-compressed pad device is in contact with the other of the frame and the platform; and a full-strike position, where the pre-compressed pad device is further compressed against the other of the frame and the platform.