Rope head mounting structure for elevator and elevator

Abstract

The utility model provides a rope head mounting structure for an elevator and the elevator. The rope head mounting structure for the elevator is used for fixing a rope head of a hoisting rope which is arranged across a lift car and a counterweight at a mounting position, and comprises at least one rope head device which is provided with a pull rod, a rope head connecting part which is arranged at one end part of the pull rod and is used for connecting the rope head, and a damping mechanism which is arranged at the other end part of the pull rod; the fixed rope hitch plate and the movable rope hitch plate are oppositely arranged between the rope hitch connecting part and the damping mechanism in the extending direction of the pull rod, the fixed rope hitch plate is located on one side of the rope hitch connecting part and used for being fixed to the mounting position, and the movable rope hitch plate is located on one side of the damping mechanism and can be close to or away from the fixed rope hitch plate in the extending direction of the pull rod; the buffering mechanism is arranged between the fixed rope hitch plate and the movable rope hitch plate, and when the traction rope pulls the movable rope hitch plate through the rope hitch device to enable the movable rope hitch plate to be close to the fixed rope hitch plate, buffering force is generated between the fixed rope hitch plate and the movable rope hitch plate. According to the structure, the impact when the counterweight falls after being lifted can be relieved at low cost.

Description

Technical Field

[0001] The utility model relates to an elevator rope end mounting structure for fixing a rope end of a traction rope arranged across a car and a counterweight at a predetermined mounting position. In addition, the utility model also relates to an elevator using the elevator rope end mounting structure. Background Art

[0002] A typical elevator structure consists of a hoistway within a building, with car and counterweight guide rails extending vertically within the hoistway. A car and counterweight are mounted along the car and counterweight rails, respectively, connected by traction ropes pulled by a traction machine. The traction machine pulls the traction ropes, causing the car to ascend and descend along the car guide rails to the desired landing. Simultaneously, the counterweight also ascends and descends along the counterweight guide rails.

[0003] Generally, the end of the traction rope (hereinafter sometimes referred to as the "rope end") is fixed to a specified installation location via a rope end device. For example, depending on the specific design, it can be fixed to the car frame, the counterweight frame of the counterweight, or it can also be fixed to the building.

[0004] Figure 11 FIG1 shows an existing structure of a rope end device, wherein (A) is a front view and (B) is a side view. Figure 11 As shown, the rope end device a typically comprises a pull rod a1, a rope end connection portion a2, and a shock-absorbing mechanism a3. The rope end connection portion a2 is located at one longitudinal (extending) end of the pull rod a1 and is used to connect to the rope end of the traction rope b. The shock-absorbing mechanism a3 is located at the other longitudinal end of the pull rod a1 and is used to generate a buffering force using its elastic member (e.g., spring, rubber, etc.) during elevator operation, thereby reducing vibrations in the car and counterweight as they travel along their respective guide rails.

[0005] To improve operational safety, elevators are generally equipped with a safety clamp on one side of the car, a speed governor in the machine room, and a speed governor rope spanning the safety clamp and the speed governor. If the car's descending speed exceeds the speed governor's preset operating speed, the speed governor pulls the speed governor rope, which in turn pulls the safety clamp, braking it and bringing the car to a stop.

[0006] Regarding the deceleration during safety clamp braking, relevant standards require that the average deceleration during free fall of a car loaded with the rated load not exceed 1.0g. However, due to limitations in current safety clamp design, materials, and manufacturing processes, the braking force of the safety clamp cannot be precisely controlled. Typically, the maximum deceleration during safety clamp braking will exceed 1.0g. This is more likely to occur when the car is not fully loaded.

[0007] When such a situation occurs, the counterweight will rush up due to inertia, and the height of the rush is related to the speed at which the safety clamp brakes (i.e., the speed of the speed limiter). In order to prevent the speed limiter from malfunctioning, the speed of the speed limiter is usually set much higher than the rated speed, usually more than 1.25 times the rated speed. Therefore, the height of the counterweight rushing up may be very large. Afterwards, although the counterweight will achieve a certain degree of buffering during the falling process by tightening the rope end device through the traction rope, the buffering distance of the shock absorbing mechanism of the existing rope end device is usually short, so even if the extreme buffering state is reached, the falling speed of the counterweight may still be very large, so the traction rope will directly stop the falling counterweight, and the impact force is very large, which may cause deformation or damage to related components.

[0008] As a means to solve this problem, high-strength components can be used to withstand the impact of the counterweight when it rises and falls. However, this will lead to a significant increase in costs. Utility Model Content

[0009] In view of the above problems, an object of the present invention is to provide an elevator rope end mounting structure and an elevator that can mitigate the impact of a counterweight when it rises and then falls at a low cost.

[0010] The camming member is a pair of camming members which are connected to each other by a pair of locking plates, the camming member comprising a first end portion for locking the camming member and a second end portion for locking the camming member in a direction opposite to the limit of the limit.

[0011] According to this technical solution, during the falling process of the counterweight after the impact, even if the counterweight still falls at a high speed when the rope head device reaches the limit buffering state where the shock absorbing mechanism produces the maximum buffering force, it will be further buffered by the buffer mechanism and stop relatively slowly, rather than being directly and rigidly pulled to a stop by the traction rope, which can reduce the impact force and alleviate the shock. In this way, it can prevent the deformation or damage of related components caused by the huge impact when the counterweight falls.

[0012] Moreover, this technical solution can solve the impact problem when the counterweight falls by simply adding a buffer mechanism, a fixed rope end plate and a movable rope end plate, without deliberately increasing the strength of the components, thus effectively suppressing the increase in the overall cost of the elevator.

[0013] That is, the utility model can alleviate the impact when the counterweight is lifted up and then falls down at a low cost.

[0014] In addition, based on the above technical solution, preferably, the buffer mechanism is a spring clamped between the fixed rope end plate and the movable rope end plate.

[0015] According to this technical solution, since the buffer mechanism is formed using a low-cost spring, the cost of alleviating the impact when the counterweight is lifted up and then falls can be suppressed.

[0016] In addition, based on the above technical solution, preferably, there are multiple rope end devices, and one spring is provided corresponding to the multiple rope end devices, and one spring is provided in a manner of being sleeved on the outside of the pull rod of each rope end device.

[0017] According to this technical solution, since a single spring is used to form the buffer mechanism, the elevator rope end installation structure can be simplified. Furthermore, since the single spring is arranged so as to be sleeved on the outside of the pull rod of each rope end device, the pull rod of each rope end device can be used to limit the movement of the spring in the direction of the rope end plate, thereby preventing the spring from being displaced from the correct installation position.

[0018] In addition, based on the above technical solution, preferably, there are multiple rope end devices, and multiple springs are provided corresponding to the rope end devices, and each spring is arranged in a manner of being sleeved on the outside of the pull rod of the corresponding rope end device.

[0019] According to this technical solution, since the buffer mechanism is composed of multiple springs, each sleeved on the outside of a corresponding pull rod of a rope end device, it can simultaneously achieve buffering while using the pull rod to limit the position of the corresponding spring, preventing interference between adjacent springs. Furthermore, even if a spring fails, the remaining springs can still provide a certain degree of buffering.

[0020] In addition, based on the above technical solution, preferably, a limiting portion is provided on the fixed rope end plate and the movable rope end plate to limit the position of the buffer mechanism in the plate surface direction of the fixed rope end plate and the movable rope end plate.

[0021] According to this technical solution, the movement of the buffer mechanism in the direction of the surface of the rope head plate can be restricted, thereby preventing the buffer mechanism from deviating from the correct installation position and failing to work normally.

[0022] In addition, based on the above technical solution, preferably, the limiting portion includes recesses formed on the surfaces of the fixed rope end plate and the movable rope end plate that are opposite to each other along the extension direction, and the end portions of the fixed rope end plate and the movable rope end plate of the buffer mechanism are respectively accommodated in the corresponding recesses and are limited in their position in the direction of the plate surface.

[0023] According to this technical solution, the limiting portion can be realized with a simple structure.

[0024] In addition, based on the above technical solution, preferably, the elevator rope end installation structure further includes a preload adjustment mechanism for adjusting the preload of the buffer mechanism between the fixed rope end plate and the movable rope end plate.

[0025] According to this technical solution, the preload adjustment mechanism can be used to adjust the preload of the buffer mechanism, for example, to the pressure of the rope end device's damping mechanism (or, if multiple rope end devices are included, all damping mechanisms) after they are fully compressed. In this way, the buffer mechanism only activates when the rope end device's damping mechanism is fully compressed and then subjected to a higher pressure, thus preventing the addition of a buffer mechanism to the rope end mounting structure from increasing low-frequency vibration during elevator car operation.

[0026] In addition, based on the above technical solution, preferably, the pre-tightening force adjustment mechanism is provided in plurality, and the plurality of pre-tightening force adjustment mechanisms are arranged at intervals in the circumferential direction of the fixed rope end plate and the movable rope end plate.

[0027] According to this technical solution, a more uniform preload force can be applied to the buffer mechanism.

[0028] In addition, based on the above technical solution, preferably, the preload adjustment mechanism comprises: an adjustment bolt, which extends from one of the fixed rope end plate and the movable rope end plate along the extension direction, and the front end portion passes through the other of the fixed rope end plate and the movable rope end plate and extends to the side of the other side opposite to the one side; and an adjustment nut, which is screwed into the front end portion of the adjustment bolt and abuts against the surface of the other side opposite to the one side; the preload adjustment mechanism adjusts the distance between the fixed rope end plate and the movable rope end plate along the extension direction by rotating the adjustment nut, thereby adjusting the preload.

[0029] According to this technical solution, the preload force adjustment mechanism can be realized with a simple structure.

[0030] In order to achieve the above-mentioned purpose, the utility model also provides an elevator, which includes a car, a counterweight and a traction rope arranged across the car and the counterweight, and the traction rope is fixed to the installation position on the car side and the counterweight side via a rope end mounting structure respectively, wherein at least one of the rope end mounting structures on the car side and the counterweight side of the traction rope is the elevator rope end mounting structure described in any of the above-mentioned technical solutions.

[0031] According to this technical solution, the same technical effect as the elevator rope end installation structure described in any of the above technical solutions can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram which shows the structure of the elevator in the 1st Embodiment of this invention.

[0033] Figure 2 This is a schematic diagram showing a rope end mounting structure for fixing a rope end of a hoisting rope at an mounting position on one side of a counterweight in the first embodiment of the present invention.

[0034] Figure 3 yes Figure 2 A-direction view.

[0035] Figure 4 It is a schematic diagram showing the structure of a vibration reduction mechanism of a rope end device included in the rope end mounting structure on the counterweight side in the first embodiment of the present invention.

[0036] Figure 5 This is a schematic diagram showing a rope end mounting structure for fixing a rope end of a hoisting rope at an mounting position on the car side in the first embodiment of the present invention.

[0037] Figure 6 This is a schematic diagram showing a rope end mounting structure for fixing the rope end of the hoisting rope at an mounting position on the counterweight side in the first modification of the first embodiment of the present invention.

[0038] Figure 7 This is a schematic diagram showing a rope end mounting structure for fixing a rope end of a hoisting rope at an mounting position on the car side in a second modification of the first embodiment of the present invention.

[0039] Figure 8 This is a schematic diagram showing a rope end mounting structure for fixing a rope end of a hoisting rope at an mounting position on one side of a counterweight in a second embodiment of the present invention.

[0040] Figure 9 yes Figure 8 B-direction view.

[0041] Figure 10 This is a schematic diagram showing a rope end mounting structure for fixing the rope end of the hoisting rope at an mounting position on the counterweight side in a first modification of the second embodiment of the present invention.

[0042] Figure 11 It is a schematic diagram showing an existing structure of a rope end device. DETAILED DESCRIPTION

[0043] The following embodiments of the present invention are described. Note that the following embodiments are provided to facilitate understanding of the present invention and are not intended to limit the present invention.

[0044] In the following description, the same components are denoted by the same reference numerals, and the description of the components will be simplified or omitted as appropriate.

[0045] <1> First embodiment

[0046] [1-1] Overview of Elevators

[0047] First, the overall structure of the elevator according to the first embodiment will be described.

[0048] Figure 1 It is a schematic diagram showing the structure of the elevator in the first embodiment.

[0049] like Figure 1 As shown, the elevator is generally arranged in a hoistway W in a building.

[0050] Specifically, the elevator is provided with a counterweight guide rail 1 extending in the up-down direction and a car guide rail 2 extending in the up-down direction inside the shaft W. A counterweight 3 capable of sliding in the extension direction (up-down direction) of the counterweight guide rail 1 is provided along the counterweight guide rail 1, and a car 4 capable of sliding in the extension direction (up-down direction) of the car guide rail 2 is provided along the car guide rail 2.

[0051] The elevator has a hoisting rope 5 installed across the counterweight 3 and the car 4. Specifically, one end of the hoisting rope 5 is secured to a mounting position on the counterweight 3 via a rope end mounting structure 6 (elevator rope end mounting structure) on the counterweight 3 side, and the other end of the hoisting rope 5 is secured to a mounting position on the car 4 via a rope end mounting structure 7 (elevator rope end mounting structure) on the car 4 side. Furthermore, the hoisting rope 5 is wound around a traction sheave and a guide sheave 9 of a hoisting machine 8.

[0052] During elevator operation, the hoisting machine 8 pulls the traction ropes 5, causing the car 4 to ascend or descend along the car guide rails 2 and travel toward the desired landing F. By stopping the hoisting machine 8 and pulling the traction ropes 5, the car 4 stops at the desired landing F. During this process, the counterweight 3 descends or ascends along the counterweight guide rails 1 in accordance with the ascent or descent of the car 4.

[0053] The elevator is provided with a safety gear P on the car 4 side, a speed governor L is provided at the top of the hoistway W, and a speed governor rope R is provided across the safety gear P and the speed governor L.

[0054] When the elevator is running, when the downward speed of the car 4 exceeds the preset action speed of the speed governor L, the speed governor L stops the speed governor rope R, and the speed governor rope R pulls the safety clamp P, causing the safety clamp P to clamp the car guide rail 2, thereby stopping the car 4.

[0055] When the car 4 is stopped, the maximum deceleration of the safety caliper P typically exceeds 1.0g. The counterweight 3 then surges upward due to inertia, then accelerates downward in free fall. The rope end mounting structure 6 on the counterweight 3 side and the rope end mounting structure 7 on the car 4 side cushion the accelerating fall of the counterweight 3, preventing impact caused by the traction rope 5 pulling hard on the counterweight 3.

[0056] [1-2] Rope head installation structure 6

[0057] Next, the rope end mounting structure 6 on the counterweight 3 side will be described.

[0058] Figure 2 Schematic diagram of a rope end mounting structure 6 for fixing the rope end of the traction rope 5 at an installation position on one side of the counterweight 3 in this embodiment. Figure 3 yes Figure 2 A-direction view.

[0059] like Figure 2 and Figure 3 As shown, the rope end installation structure 6 includes a rope end device 61 , a fixed rope end plate 62 , a movable rope end plate 63 , a buffer mechanism 64 and a preload adjustment mechanism 65 .

[0060] There is at least one rope end device 61. In this embodiment, a plurality of rope end devices 61 are provided, specifically, Figure 3 As shown, six rope end devices 61 are provided.

[0061] Each rope end device 61 includes a pull rod 611 , a rope end connecting portion 612 and a shock absorbing mechanism 613 .

[0062] The pull rod 611 is a long rod-shaped component extending in one direction.

[0063] The rope end connection portion 612 is provided at one end of the pull rod 611 in the extending direction and is used to connect the rope end at one end of the traction rope 5. Various existing structures can be used as the structure for connecting the rope end at one end of the traction rope 5. For example, the rope end connection portion 612 can be formed by a wedge sleeve and a wedge block, etc., and the wedge sleeve and the wedge block can be used to hold the rope end at one end of the traction rope 5 in place.

[0064] The shock absorbing mechanism 613 is provided at the other end portion in the extension direction of the pull rod 611 and can reduce the vibration during the operation of the elevator by generating a buffering force.

[0065] Figure 4 Schematic diagram showing the structure of the damping mechanism 613 in the first embodiment. Figure 4 As shown, the shock absorbing mechanism 613 has an end plate 6131, an elastic member 6132, a washer 6133 and a nut 6134 in sequence from one end side to the other end side of the pull rod 611. The end plate 6131 is sleeved on the outside of the other end of the pull rod 611 and can move freely relative to the pull rod 611 in the extension direction of the pull rod 611, thereby allowing the elastic member 6132 to be compressed. In addition, the end plate 6131 is arranged in a manner that abuts against the end surface of the movable rope end plate 63 on the opposite side of the fixed rope end plate 62. The elastic member 6132 can be composed of a spring, which is sleeved on the outside of the other end of the pull rod 611, and one end of the spring abuts against the end plate 6131. ​​The washer 6133 is sleeved on the outside of the other end of the pull rod 611 and abuts against the other end of the elastic member 6132. The nut 6134 is screwed onto the external thread of the other end portion of the pull rod 611 , thereby sandwiching the elastic member 6132 between the end plate 6131 , the washer 6133 and the nut 6134 .

[0066] When the elevator is running, the counterweight 3 and the car 4 pull the pull rod 611 via the traction rope 5, reducing the distance between the end plate 6131 of the shock absorbing mechanism 613 and the washer 6133 and nut 6134, compressing the elastic member 6132 to generate a buffering force, thereby reducing the vibration during the operation of the elevator.

[0067] The fixed rope end plate 62 is a plate-shaped component extending in a direction intersecting the extension direction of the pull rod 611 of the rope end device 61. The fixed rope end plate 62 is located on one side of the rope end connection portion 612 between the rope end connection portion 612 and the shock absorbing mechanism 613 of the rope end device 61. A number of holes corresponding to the rope end device 61 are formed on the fixed rope end plate 62 and pass through the extension direction of the pull rod 611. The pull rod 611 of the rope end device 61 passes through the corresponding holes and can move freely relative to the fixed rope end plate 62 along the extension direction. The fixed rope end plate 62 is used to fix to the installation position on the counterweight 3. More specifically, as Figure 2As shown, the counterweight 3 has a counterweight frame 31 and a counterweight block 32, and the fixed rope end plate 62 is used to be installed on the counterweight frame 31. Thus, the rope end mounting structure 6 is fixed to the counterweight frame 31.

[0068] The movable rope end plate 63 is a plate-shaped component that extends in a direction intersecting the extension direction of the pull rod 611 of the rope end device 61. The movable rope end plate 63 is located on one side of the shock absorber mechanism 613 between the rope end connection portion 612 of the rope end device 61 and the shock absorber mechanism 613. The movable rope end plate 63 is formed with a number of holes extending in the extension direction of the pull rod 611, corresponding to the number of holes in the rope end device 61. The pull rod 611 of the rope end device 61 passes through the corresponding holes and is able to move freely in the extension direction relative to the movable rope end plate 63. The movable rope end plate 63 is arranged to be opposite to the fixed rope end plate 62 in the extension direction of the pull rod 611, and can move closer to and farther away from the fixed rope end plate 62 in the extension direction of the pull rod 611.

[0069] A limiting portion is formed on the fixed rope end plate 62 and the movable rope end plate 63 to limit the position of the buffer mechanism 64 described later in the plate surface direction of the fixed rope end plate 62 and the movable rope end plate 63 (the plate surface direction is the plane direction in which the fixed rope end plate 62 and the movable rope end plate 63 extend respectively, and is a direction intersecting with the extension direction of the pull rod 611 of the rope end device 61).

[0070] As an example of the limiting portion, a recessed portion having a shape matching that of one end portion of the buffer mechanism 64 is formed on the end face of the fixed rope end plate 62 on the side opposite to the movable rope end plate 63, and a recessed portion having a shape matching that of the other end portion of the buffer mechanism 64 is formed on the end face of the movable rope end plate 63 on the side opposite to the fixed rope end plate 62. By respectively accommodating (embedding) the two ends of the buffer mechanism 64 into the corresponding recesses of the two recesses, the position of the buffer mechanism 64 in the plate surface direction of the fixed rope end plate 62 and the movable rope end plate 63 is limited.

[0071] The buffer mechanism 64 is disposed between the fixed rope end plate 62 and the movable rope end plate 63 , and can generate a buffer force independently of the shock absorbing mechanism 613 of the rope end device 61 .

[0072] The buffer mechanism 64 may use various components capable of generating a buffer force, such as a spring, rubber, or a cylinder, or a combination thereof.

[0073] In this embodiment, a single spring is used to constitute the buffer mechanism 64. More specifically, the single spring constituting the buffer mechanism 64 is sandwiched in a compressed state between the fixed rope end plate 62 and the movable rope end plate 63, with one end portion of the spring being accommodated (embedded) in the aforementioned recess on the fixed rope end plate 62 and the other end portion of the spring being accommodated (embedded) in the aforementioned recess on the movable rope end plate 63. Furthermore, the single spring is disposed so as to be sleeved on the outside of the pull rod 611 of each rope end device 61.

[0074] When the traction rope 5 pulls the movable rope end plate 63 through the rope end device 61 and makes the movable rope end plate 63 close to the fixed rope end plate 62, a spring constituting the buffer mechanism 64 is compressed, thereby independently generating a buffer force between the fixed rope end plate 62 and the movable rope end plate 63 relative to the shock absorbing mechanism 613 of the rope end device 61, thereby providing further buffering for the fall of the counterweight 3.

[0075] The preload force adjustment mechanism 65 is a mechanism for allowing an operator to adjust the preload force of the buffer mechanism 64 between the fixed rope end plate 62 and the movable rope end plate 63 .

[0076] like Figure 2 As shown, the preload adjustment mechanism 65 has an adjustment bolt 651 and an adjustment nut 652. The adjustment bolt 651 has a flange-shaped bolt head at one end and an external thread formed at the other end (i.e., the front end). The adjustment bolt 651 passes through the corresponding through holes on the fixed rope head plate 62 and the movable rope head plate 63 along the extension direction of the pull rod 611 of the rope head device 61, and the bolt head at one end abuts against the end face of the fixed rope head plate 62 on the opposite side of the movable rope head plate 63, and the other end (i.e., the front end) extends to the side of the movable rope head plate 63 opposite to the fixed rope head plate 62. The adjustment nut 652 is screwed into the external thread of the other end (i.e., the front end) of the adjustment bolt 651 and abuts against the end face of the movable rope head plate 63 on the opposite side of the fixed rope head plate 62.

[0077] In this way, the fixed rope end plate 62 and the movable rope end plate 63 are sandwiched between the bolt head of the adjustment bolt 651 and the adjustment nut 652, compressing the buffer mechanism 64 and applying a preload force thereto.

[0078] In addition, by rotating the adjustment nut 652 to adjust the spacing between the fixed rope end plate 62 and the movable rope end plate 63 along the extension direction of the pull rod 611 of the rope end device 61, the compression amount of the buffer mechanism 64 can be changed, thereby adjusting the preload force of the buffer mechanism 64. In addition, by adjusting the preload force adjustment mechanism 65, the action sequence of the shock absorbing mechanism 613 and the buffer mechanism 64 of the rope end device 61 can be set. For example, it can be adjusted so that after the shock absorbing mechanism 613 of the rope end device 61 is fully compressed (applying the maximum buffer force it can generate), the buffer mechanism 64 immediately acts to provide a buffer force. Alternatively, it can also be adjusted so that when the shock absorbing mechanism 613 is about to be fully compressed, the buffer mechanism 64 acts to provide a buffer force. Of course, it can also be adjusted to other action sequences.

[0079] There is no limit to the number of preload adjustment mechanisms 65, and one or more preload adjustment mechanisms may be provided. Figure 3 As shown, in this embodiment, there are multiple preload adjustment mechanisms 65, which are arranged at intervals along the circumference of the fixed rope end plate 62 and the movable rope end plate 63, for example, they can be distributed at the four circumferential corners of the fixed rope end plate 62 and the movable rope end plate 63 respectively.

[0080] The above is the description of the rope end mounting structure 6 .

[0081] [1-3] Rope head installation structure 7

[0082] Next, the rope end mounting structure 7 on the car 4 side will be described.

[0083] Figure 5 1 is a schematic diagram showing a rope end mounting structure 7 for fixing the rope end of the hoisting rope 5 at an attachment position on the car 4 side in the present embodiment.

[0084] like Figure 5 As shown, the rope end installation structure 7 includes a rope end device 71 , a fixed rope end plate 72 , a movable rope end plate 73 , a buffer mechanism 74 and a preload adjustment mechanism 75 .

[0085] At least one rope end device 71 is provided. In this embodiment, a plurality of rope end devices 71 are provided, specifically six rope end devices 71 can be provided (refer to Figure 3 The arrangement of the rope end device 61 in FIG.

[0086] Each rope end device 71 includes a pull rod 711 , a rope end connecting portion 712 and a shock absorbing mechanism 713 .

[0087] The pull rod 711 is a long rod-shaped component extending in one direction.

[0088] The rope end connection portion 712 is provided at one end of the pull rod 711 in the extending direction thereof and is used to connect the rope end at the other end of the traction rope 5. Various existing structures can be employed as the structure for connecting the rope end at the other end of the traction rope 5. For example, the rope end connection portion 712 can be formed of a wedge sleeve and a wedge block, and the wedge sleeve and the wedge block can be used to secure the rope end at the other end of the traction rope 5.

[0089] The shock absorbing mechanism 713 is provided at the other end portion in the extension direction of the pull rod 711 and can reduce the vibration during the operation of the elevator by generating a buffering force.

[0090] The shock absorber mechanism 713 can use the same structure as the shock absorber mechanism 613. Specifically, the shock absorber mechanism 713 comprises an end plate, an elastic member, a washer, and a nut, in order from one end of the pull rod 711 to the other end. The end plate of the shock absorber mechanism 713 is mounted outside the other end of the pull rod 711 and is freely movable relative to the pull rod 711 in the direction in which the pull rod 711 extends, thereby allowing the elastic member of the shock absorber mechanism 713 to be compressed. Furthermore, the end plate of the shock absorber mechanism 713 is positioned so as to abut against the end surface of the movable rope end plate 73 opposite the fixed rope end plate 72. The elastic member of the shock absorber mechanism 713 can be formed using a spring, which is mounted outside the other end of the pull rod 711, with one end of the spring abutting against the end plate of the shock absorber mechanism 713. The washer of the shock absorber mechanism 713 is mounted outside the other end of the pull rod 711 and abuts against the other end of the elastic member. The nut of the shock absorbing mechanism 713 is screwed onto the external thread of the other end of the pull rod 711 , thereby sandwiching the elastic member between the end plate, the washer and the nut.

[0091] When the elevator is running, the counterweight 3 and the car 4 pull the pull rod 711 via the traction rope 5, reducing the distance between the end plate and the washer and nut of the shock absorbing mechanism 713, compressing the elastic part of the shock absorbing mechanism 713 to generate a buffering force, thereby reducing the vibration during elevator operation.

[0092] The fixed rope end plate 72 is a plate-shaped component extending in a direction intersecting the extension direction of the pull rod 711 of the rope end device 71. The fixed rope end plate 72 is located on one side of the rope end connection portion 712 between the rope end connection portion 712 of the rope end device 71 and the shock absorbing mechanism 713. A number of holes corresponding to the rope end device 71 are formed on the fixed rope end plate 72 and pass through the extension direction of the pull rod 711. The pull rod 711 of the rope end device 71 passes through the corresponding holes and can move freely relative to the fixed rope end plate 72 along the extension direction. The fixed rope end plate 72 is used to fix to the installation position on the car 4. More specifically, as Figure 5 As shown, the car 4 includes a car frame 41 and a car body 42, and the fixed rope end plate 72 is used to be mounted on the car frame 41. Thus, the rope end mounting structure 7 is fixed to the car frame 41.

[0093] The movable rope end plate 73 is a plate-shaped component that extends in a direction intersecting the extension direction of the pull rod 711 of the rope end device 71. The movable rope end plate 73 is located on one side of the shock absorber mechanism 713, between the rope end connection portion 712 of the rope end device 71 and the shock absorber mechanism 713. The movable rope end plate 73 is formed with a number of holes extending in the extension direction of the pull rod 711, corresponding to the number of holes in the rope end device 71. The pull rod 711 of the rope end device 71 passes through the corresponding holes and is able to move freely in the extension direction relative to the movable rope end plate 73. The movable rope end plate 73 is arranged to be opposite to the fixed rope end plate 72 in the extension direction of the pull rod 711, and can move closer to and farther from the fixed rope end plate 72 in the extension direction of the pull rod 711.

[0094] A limiting portion is formed on the fixed rope end plate 72 and the movable rope end plate 73 to limit the position of the buffer mechanism 74 described later in the plate surface direction of the fixed rope end plate 72 and the movable rope end plate 73 (the plate surface direction is the plane direction in which the fixed rope end plate 72 and the movable rope end plate 73 extend respectively, and is a direction intersecting with the extension direction of the pull rod 711 of the rope end device 71).

[0095] As an example of the limiting portion, a recessed portion having a shape matching that of one end portion of the buffer mechanism 74 is formed on the end face of the fixed rope end plate 72 on the side opposite to the movable rope end plate 73, and a recessed portion having a shape matching that of the other end portion of the buffer mechanism 74 is formed on the end face of the movable rope end plate 73 on the side opposite to the fixed rope end plate 72. By respectively accommodating (embedding) the two ends of the buffer mechanism 74 into the corresponding recesses of the two recesses, the position of the buffer mechanism 74 in the plate surface direction of the fixed rope end plate 72 and the movable rope end plate 73 is limited.

[0096] The buffer mechanism 74 is disposed between the fixed rope end plate 72 and the movable rope end plate 73 , and can generate a buffer force independently of the shock absorbing mechanism 713 of the rope end device 71 .

[0097] The buffer mechanism 74 may use various components capable of generating a buffer force, such as a spring, rubber, or a cylinder, or a combination thereof.

[0098] In this embodiment, a single spring is used to constitute the buffer mechanism 74. More specifically, the single spring constituting the buffer mechanism 74 is sandwiched in a compressed state between the fixed rope end plate 72 and the movable rope end plate 73, with one end portion of the spring being accommodated (embedded) in the aforementioned recess on the fixed rope end plate 72 and the other end portion of the spring being accommodated (embedded) in the aforementioned recess on the movable rope end plate 73. Furthermore, the single spring is disposed so as to be sleeved on the outside of the pull rod 711 of each rope end device 71.

[0099] When the traction rope 5 pulls the movable rope end plate 73 through the rope end device 71 and makes the movable rope end plate 73 approach the fixed rope end plate 72, a spring constituting the buffer mechanism 74 is compressed, thereby independently generating a buffer force between the fixed rope end plate 72 and the movable rope end plate 73 relative to the shock absorbing mechanism 713 of the rope end device 71, thereby providing further buffering for the fall of the counterweight 3.

[0100] The preload adjustment mechanism 75 is a mechanism for allowing an operator to adjust the preload of the buffer mechanism 74 between the fixed rope end plate 72 and the movable rope end plate 73 .

[0101] like Figure 5 As shown, the preload adjustment mechanism 75 has an adjustment bolt 751 and an adjustment nut 752. The adjustment bolt 751 has a flange-shaped bolt head at one end and an external thread formed at the other end (i.e., the front end). The adjustment bolt 751 passes through the corresponding through holes on the fixed rope end plate 72 and the movable rope end plate 73 along the extension direction of the pull rod 711 of the rope end device 71, and the bolt head at one end abuts against the end surface of the fixed rope end plate 72 on the opposite side of the movable rope end plate 73, and the other end (i.e., the front end) extends to the side of the movable rope end plate 73 opposite to the fixed rope end plate 72. The adjustment nut 752 is screwed into the external thread of the other end (i.e., the front end) of the adjustment bolt 751 and abuts against the end surface of the movable rope end plate 73 on the opposite side of the fixed rope end plate 72.

[0102] In this way, the fixed rope end plate 72 and the movable rope end plate 73 are sandwiched between the bolt head of the adjustment bolt 751 and the adjustment nut 752, compressing the buffer mechanism 74 and applying a preload force thereto.

[0103] In addition, by rotating the adjustment nut 752 to adjust the spacing between the fixed rope end plate 72 and the movable rope end plate 73 along the extension direction of the pull rod 711 of the rope end device 71, the compression amount of the buffer mechanism 74 can be changed, thereby adjusting the preload force of the buffer mechanism 74. In addition, by adjusting the preload force adjustment mechanism 75, the action sequence of the shock absorbing mechanism 713 and the buffer mechanism 74 of the rope end device 71 can be set. For example, it can be adjusted so that after the shock absorbing mechanism 713 of the rope end device 71 is fully compressed (applying the maximum buffer force it can produce), the buffer mechanism 74 immediately acts to provide a buffer force. Alternatively, it can also be adjusted so that when the shock absorbing mechanism 713 is about to be fully compressed, the buffer mechanism 74 acts to provide a buffer force. Of course, it can also be adjusted to other action sequences.

[0104] There is no limit to the number of preload adjustment mechanisms 75 , and one or more preload adjustment mechanisms may be provided. In this embodiment, similar to the preload adjustment mechanism 65 , a plurality of preload adjustment mechanisms 75 are provided, and they are arranged at intervals along the circumference of the fixed rope end plate 72 and the movable rope end plate 73 , for example, they may be distributed at the four circumferential corners of the fixed rope end plate 72 and the movable rope end plate 73 .

[0105] The above is the description of the rope end mounting structure 7 .

[0106] [1-4] Buffering action

[0107] Next, the buffering action by the rope end mounting structures 6 and 7 will be described.

[0108] Here, it is assumed that the action sequence of the shock absorbing mechanism 613 / 713 and the buffer mechanism 64 / 74 of the rope end device 61 / 71 is adjusted as follows: after the shock absorbing mechanism 613 / 713 of the rope end device 61 / 71 is fully compressed, the buffer mechanism 64 / 74 starts to act and provide buffering force.

[0109] When the counterweight 3 is lifted up due to inertia and then falls down with free fall acceleration:

[0110] First, the counterweight 3 pulls the shock absorbing mechanism 613 / 713 of the rope end device 61 / 71 via the traction rope 5. This compresses the elastic elements of each shock absorbing mechanism 613 / 713, generating a buffering force. As the degree of compression of the elastic elements increases, the generated buffering force gradually increases. During this process, the counterweight 3 gradually decelerates while being subjected to the buffering force, without causing any impact.

[0111] Next, when the shock absorbing mechanism 613 / 713 of the rope end device 61 / 71 is fully tightened, the shock absorbing mechanism 613 / 713 can be considered a rigid body and can no longer generate any further buffering force. However, at this point, the force exerted by the counterweight 3 on the buffer mechanism 64 / 74 via the traction rope 5 and the rope end device 61 / 71 exceeds the preload of the buffer mechanism 64 / 74, causing the buffer mechanism 64 / 74 to activate, further generating a buffering force following the shock absorbing mechanism 613 / 713, thus cushioning the fall of the counterweight 3. In this way, the counterweight 3 gradually decelerates while still being subjected to the buffering force, without generating any impact.

[0112] Finally, the counterweight 3 decelerates to a stop.

[0113] [1-5] Technical Effects

[0114] According to this embodiment, as previously described, during the falling process of the counterweight after being lifted, even if the counterweight still falls at a high speed when the rope head device reaches the limit buffering state where the shock absorbing mechanism generates the maximum buffering force, it will be further buffered by the buffer mechanism and stop relatively slowly, rather than being directly and rigidly pulled to a stop by the traction rope. This can reduce the impact force and alleviate the shock. As a result, deformation or damage to related components caused by the huge impact of the counterweight falling can be avoided.

[0115] Moreover, this embodiment can solve the impact problem when the counterweight falls by simply adding a buffer mechanism, a fixed rope end plate and a movable rope end plate, without deliberately increasing the strength of the components, thereby effectively suppressing the increase in the overall cost of the elevator.

[0116] That is, this embodiment can mitigate the impact when the counterweight is lifted up and then falls down at a low cost.

[0117] Furthermore, the preload adjustment mechanism allows the preload of the buffer mechanism to be adjusted to the pressure of the rope end device's damping mechanism after it is fully compressed. This way, the buffer mechanism only activates when the rope end device's damping mechanism is fully compressed and then subjected to a higher pressure, thus preventing the addition of a buffer mechanism to the rope end mounting structure from increasing low-frequency vibrations during car operation.

[0118] <2> Modification 1 of the First Embodiment

[0119] <2-1> Basic Structure

[0120] The main difference between the first embodiment and the first embodiment is that the installation position of the rope end of the fixed traction rope 5 on the counterweight 3 side is different.

[0121] Figure 6 This is a schematic diagram of a rope end mounting structure 6 for fixing the rope end of the hoisting rope 5 at a mounting position on one side of the counterweight 3 in the first modification of the first embodiment.

[0122] like Figure 6 As shown, in the first embodiment of the modification 1, the rope end of the traction rope 5 is directly installed on the building at the installation position M on the side of the counterweight 3. For example, the installation position M can be a beam installed in the hoistway W of the building.

[0123] In this modified embodiment, the counterweight 3 includes, in addition to the counterweight frame 31 and the counterweight block 32 supported thereby, a counterweight return pulley 33 rotatably mounted on the counterweight frame 31 .

[0124] The hoisting rope 5 is wound around the counterweight return pulley 33 from the bottom to suspend the counterweight 3 .

[0125] In addition, this modification is the same as the first embodiment. Here, in order to avoid redundancy, the same reference numerals are used to omit repeated descriptions of the same parts.

[0126] <2-2>Technical Effects

[0127] This modified embodiment can achieve the same technical effects as the first embodiment.

[0128] <3> Modification 2 of the First Embodiment

[0129] <3-1> Basic Structure

[0130] The main difference between the second modification of the first embodiment and the first embodiment is that the installation position of the rope end of the fixed traction rope 5 on the car 4 side is different.

[0131] Figure 7 This is a schematic diagram of a rope end mounting structure 7 for fixing the rope end of the hoisting rope 5 at a mounting position on the car 4 side in a second modification of the first embodiment.

[0132] like Figure 7 As shown, in the second modification of the first embodiment, the rope end of the traction rope 5 is directly installed on the building at the installation position M on the side of the car 4. For example, the installation position M can be a beam installed in the hoistway W of the building.

[0133] In this modified embodiment, the car 4 includes a car return pulley 43 rotatably mounted on the car frame 41 in addition to the car frame 41 and the car body 42 supported thereby.

[0134] The hoisting rope 5 is wound around the car return pulley 43 from the bottom to suspend the car 4 .

[0135] In addition, this modification is the same as the first embodiment. Here, in order to avoid redundancy, the same reference numerals are used to omit repeated descriptions of the same parts.

[0136] <3-2>Technical Effects

[0137] This modified embodiment can achieve the same technical effects as the first embodiment.

[0138] <4> Second embodiment

[0139] <4-1> Basic Structure

[0140] The second embodiment differs from the first embodiment mainly in that the rope end mounting structure 6 for fixing the rope end at one end of the hoisting rope 5 to one side of the counterweight 3 is different.

[0141] Figure 83 is a schematic diagram of a rope end mounting structure 6 for fixing the rope end of the traction rope 5 at an installation position on one side of the counterweight 3 in the second embodiment. Figure 9 yes Figure 8 B-direction view.

[0142] like Figure 8 and Figure 9 As shown, in the rope end mounting structure 6 of this embodiment, instead of the single spring in the first embodiment, a plurality of springs corresponding to the number of rope end devices 61 are provided as the buffer mechanism 64. The springs constituting the rope end mounting structure 6 are provided in a one-to-one correspondence with each rope end device 61. Specifically, the springs constituting the rope end mounting structure 6 are respectively provided so as to be sleeved on the outside of the pull rod 611 of the corresponding rope end device 61.

[0143] Correspondingly, multiple recesses capable of accommodating (embedding) the ends of corresponding springs are formed as stoppers on the fixed rope end plate 62 and the movable rope end plate 63. Each spring is arranged so that one end is accommodated in a corresponding recess on the fixed rope end plate 62, and the other end is accommodated in a corresponding recess on the movable rope end plate 63.

[0144] The springs that make up the rope end mounting structure 6 are sandwiched in a compressed state between the fixed rope end plate 62 and the movable rope end plate 63. By tightening or loosening the adjustment nut 652 of the preload adjustment mechanism 65, the degree of compression of these springs can be adjusted, thereby adjusting the preload of the buffer mechanism 64. Here, the preload is the combined force of the springs that make up the buffer mechanism 64.

[0145] When the counterweight 3 is lifted and then falls during the operation of the elevator, the springs of the buffer mechanism 64 in this embodiment are compressed and deformed together to provide a buffer for the falling of the counterweight 3.

[0146] Except for this, this embodiment is the same as the first embodiment. Here, in order to avoid redundancy, repeated description of the same parts will be omitted by attaching the same reference numerals.

[0147] <4-2>Technical Effects

[0148] This embodiment can achieve the same technical effects as the first embodiment.

[0149] <5> Modification 1 of the Second Embodiment

[0150] <5-1> Basic Structure

[0151] The main difference between the modified embodiment 1 of the second embodiment and the second embodiment is that the installation position of the rope end of the fixed traction rope 5 on the counterweight 3 side is different.

[0152] Figure 10This is a schematic diagram of a rope end mounting structure 6 for fixing the rope end of the hoisting rope 5 at a mounting position on one side of the counterweight 3 in the first modification of the second embodiment.

[0153] like Figure 10 As shown, in the modification 1 of the second embodiment, the rope end of the traction rope 5 is directly installed on the building at the installation position M on the side of the counterweight 3. For example, the installation position M can be a beam installed in the hoistway W of the building.

[0154] In this modified embodiment, the counterweight 3 includes, in addition to the counterweight frame 31 and the counterweight block 32 supported thereby, a counterweight return pulley 33 rotatably mounted on the counterweight frame 31 .

[0155] The hoisting rope 5 is wound around the counterweight return pulley 33 from the bottom to suspend the counterweight 3 .

[0156] In addition, this modification is the same as the second embodiment. Here, in order to avoid redundancy, the repeated description of the same parts is omitted by attaching the same reference numerals.

[0157] <5-2>Technical Effects

[0158] This modified embodiment can achieve the same technical effects as the second embodiment.

[0159] <6> Third embodiment

[0160] <6-1> Basic Structure

[0161] The third embodiment differs from the first embodiment mainly in that the rope end mounting structure 7 for fixing the rope end at the other end of the hoisting rope 5 to the car 4 side is different.

[0162] Similar to the second embodiment, the rope end mounting structure 7 of this embodiment includes a plurality of springs corresponding to the number of rope end devices 71, instead of the single spring in the first embodiment, as a buffer mechanism 74. Each spring constituting the rope end mounting structure 7 is provided in a one-to-one correspondence with each rope end device 71. Specifically, each spring constituting the rope end mounting structure 7 is disposed so as to be sleeved onto the outside of the pull rod 711 of the corresponding rope end device 71.

[0163] Correspondingly, multiple recesses capable of accommodating (embedding) the ends of corresponding springs are formed as stoppers on the fixed rope end plate 72 and the movable rope end plate 73. Each spring is arranged so that one end is accommodated in a corresponding recess on the fixed rope end plate 72, and the other end is accommodated in a corresponding recess on the movable rope end plate 73.

[0164] The springs that comprise the rope end mounting structure 7 are compressed and sandwiched between the fixed rope end plate 72 and the movable rope end plate 73. By tightening or loosening the adjustment nut 752 of the preload adjustment mechanism 75, the degree of compression of these springs can be adjusted, thereby adjusting the preload of the buffer mechanism 74. The preload is the combined force of the springs that comprise the buffer mechanism 74.

[0165] When the counterweight 3 is lifted up and then falls down during the operation of the elevator, the springs of the buffer mechanism 74 in this embodiment are compressed and deformed together to provide a buffer for the falling of the counterweight 3.

[0166] Except for this, this embodiment is the same as the first embodiment. Here, in order to avoid redundancy, the description of the same parts as the first embodiment will be omitted.

[0167] <6-2>Technical Effects

[0168] This embodiment can achieve the same technical effects as the first embodiment.

[0169] <7> Modification 1 of the Third Embodiment

[0170] <7-1> Basic Structure

[0171] The main difference between the modified embodiment 1 of the third embodiment and the third embodiment is that the installation position of the rope end of the fixed traction rope 5 on the car 4 side is different.

[0172] As in the second modification of the first embodiment, in the first modification of the third embodiment, the rope ends of the hoisting ropes 5 are directly mounted on the building at the mounting position on the side of the car 4. For example, the mounting position may be a beam in the hoistway W of the building.

[0173] In this modified embodiment, the car 4 includes, in addition to the car frame 41 and the car body 42 supported thereby, a car return pulley rotatably mounted on the car frame 41 .

[0174] The hoisting rope 5 is wound around the car return pulley from the bottom side to suspend the car 4 .

[0175] In addition, this modification is the same as the third embodiment. Here, in order to avoid redundancy, the description of the same parts as the third embodiment is omitted.

[0176] <7-2> Technical Effects

[0177] This modified embodiment can achieve the same technical effects as the third embodiment.

[0178] <8> other

[0179] The above embodiments and modifications essentially describe an elevator and an elevator rope end mounting structure for fixing the rope end of a traction rope provided across an elevator car and a counterweight at a mounting position, and all of the topics of the elevator and the elevator rope end mounting structure are supported.

[0180] The various embodiments and variations are provided to facilitate understanding of the present invention. The scope of protection of the present invention is not limited to these embodiments and variations. Those skilled in the art can make various modifications to these embodiments and variations without departing from the technical concept of the present invention. These modifications are described below with examples.

[0181] (1) In each of the above-mentioned embodiments and variations, the rope end mounting structure provided by the present invention is provided on both the counterweight 3 side and the car 4 side, but the present invention is not limited to this. The rope end mounting structure provided by the present invention may be provided on only one of the counterweight 3 side and the car 4 side, and the rope end mounting structure in the prior art may be provided on the other side.

[0182] (2) In the above-described embodiments and variations, the adjustment nut 652 / 752 of the preload adjustment mechanism 65 / 75 is disposed on the side of the movable rope end plate 63 / 73, but this is not limiting. For example, the adjustment nut 652 / 752 may be disposed on the side of the fixed rope end plate 62 / 72. Alternatively, the adjustment nut may be disposed on both the side of the movable rope end plate 63 / 73 and the side of the fixed rope end plate 62 / 72.

[0183] (3) In the above-mentioned embodiments and variations, the rope end mounting structures 6 and 7 have a pre-tensioning force adjustment mechanism 65 / 75, but are not limited thereto. Even if the pre-tensioning force adjustment mechanism 65 / 75 is removed, the purpose of "relieving the impact of the counterweight when it is lifted up and then falls down at a low cost" can be achieved.

[0184] However, in the case of a preload adjustment mechanism 65 / 75, the preload adjustment mechanism 65 can be adjusted to avoid increasing low-frequency vibration during car operation due to adding a buffer mechanism to the rope end installation structure. Therefore, it is preferred to have a preload adjustment mechanism 65 / 75.

[0185] (4) In the present invention, the fixed rope end plate 62 / 72 and the movable rope end plate 63 / 73 can be formed by a plate-like member (such as a metal plate, etc.), or can be composed of a plurality of crisscrossing horizontal beams and a plurality of longitudinal beams, as long as the whole is in the shape of a plate.

[0186] (5) In the present invention, the fixed rope end plate 62 / 72 and the movable rope end plate 63 / 73 refer to a plate-shaped main body extending in a direction intersecting the extension direction of the pull rod 611 / 711 of the rope end device 61 / 71 (the plate surface direction of the fixed rope end plate 62 / 72 and the movable rope end plate 63 / 73). As long as such a plate-shaped main body is included, even if a flange or other structure protruding from the plate-shaped main body is also included, it is considered to be a fixed rope end plate and a movable rope end plate in the present invention.

Claims

1. An elevator rope end mounting structure, which fixes the rope end of the traction rope arranged across the car and the counterweight at the mounting position, characterized in that: Include: at least one rope end device comprising a pull rod, a rope end connecting portion provided at one end of the pull rod for connecting the rope end, and a shock absorbing mechanism provided at the other end of the pull rod; a fixed rope end plate and a movable rope end plate disposed opposite to each other between the rope end connection portion and the shock absorbing mechanism along the extension direction of the pull rod, the fixed rope end plate being located on one side of the rope end connection portion and being used to be fixed to the installation position, and the movable rope end plate being located on one side of the shock absorbing mechanism and being able to approach and move away from the fixed rope end plate along the extension direction; and A buffer mechanism is provided between the fixed rope end plate and the movable rope end plate, and generates a buffer force between the fixed rope end plate and the movable rope end plate when the traction rope pulls the movable rope end plate through the rope end device and the movable rope end plate approaches the fixed rope end plate.

2. The elevator rope end mounting structure according to claim 1, characterized in that: The buffer mechanism is a spring sandwiched between the fixed rope end plate and the movable rope end plate.

3. The elevator rope end mounting structure according to claim 2, characterized in that: The rope head device is provided with multiple, The spring is provided corresponding to a plurality of the rope end devices, and one spring is provided in a manner of being sleeved on the outer side of the pull rod of each of the rope end devices.

4. The elevator rope end mounting structure according to claim 2, characterized in that: The rope head device is provided with multiple, A plurality of springs are provided corresponding to the rope end devices, and each spring is respectively provided in a manner of being sleeved on the outer side of the pull rod of the corresponding rope end device.

5. The elevator rope end mounting structure according to claim 1, characterized in that: The fixed rope end plate and the movable rope end plate are provided with a limiting portion for limiting the position of the buffer mechanism in the plate surface direction of the fixed rope end plate and the movable rope end plate.

6. The elevator rope end mounting structure according to claim 5, characterized in that: The limiting portion includes recessed portions formed on surfaces of the fixed rope end plate and the movable rope end plate that are opposite to each other along the extending direction. The end portions of the buffer mechanism on the fixed rope end plate side and the movable rope end plate side are respectively accommodated in the corresponding recessed portions and are restricted in position in the plate surface direction.

7. The elevator rope end mounting structure according to claim 1, characterized in that: The elevator rope end mounting structure further includes a preload adjustment mechanism for adjusting the preload of the buffer mechanism between the fixed rope end plate and the movable rope end plate.

8. The elevator rope end mounting structure according to claim 7, characterized in that: A plurality of the preload force adjustment mechanisms are provided, and the plurality of preload force adjustment mechanisms are arranged at intervals in the circumferential direction of the fixed rope end plate and the movable rope end plate.

9. The elevator rope end mounting structure according to claim 7, characterized in that: The preload force adjustment mechanism comprises: an adjusting bolt extending from one of the fixed rope end plate and the movable rope end plate along the extending direction, and having a front end portion passing through the other of the fixed rope end plate and the movable rope end plate and extending to a side of the other opposite to the one; and an adjusting nut screwed onto the front end portion of the adjusting bolt and resting against a surface of the other side opposite to the first side; The preload adjustment mechanism adjusts the distance between the fixed rope end plate and the movable rope end plate along the extending direction by rotating the adjustment nut, thereby adjusting the preload.

10. An elevator comprising a car, a counterweight, and a traction rope arranged across the car and the counterweight, wherein the traction rope is fixed to an installation position on one side of the car and the other side of the counterweight via a rope end installation structure, characterized in that: At least one of the rope end mounting structures on the car side and the counterweight side of the hoisting rope is the elevator rope end mounting structure according to any one of claims 1 to 9.

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