Buffer impact mechanism and counterweight buffer system

Abstract

The present application discloses a buffer impact mechanism and a counterweight buffer system. Among them, the buffer impact mechanism includes multiple sets of impact components that are movably connected. Each set of impact components is provided with a connection structure that cooperates with the counterweight frame and can be switched between the following two states: a stacked state, in which the impact components are longitudinally stacked in sequence, the impact component at the uppermost position is connected to the counterweight frame by its own connection structure, and the impact component at the lowermost position cooperates with the buffer; a horizontal row state, among two adjacent sets of impact components in the stacked state, the lower impact component is connected to the counterweight frame by its own connection structure and exposes the bottom surface of the upper impact component, so that the bottom surface of the upper impact component cooperates with the buffer. The buffer impact mechanism and the counterweight buffer system provided by the present application can not only adjust the height of the buffer impact mechanism, but also keep the overall weight of the counterweight frame unchanged, ensuring the stability and safety of the operation of the counterweight frame.

Description

Technical Field

[0001] The present application relates to the technical field of elevators, and particularly to a buffer impact mechanism and a counterweight buffer system. Background Art

[0002] The existing buffer impact mechanism is installed at the bottom of the counterweight frame and directly above the pit buffer, and is used for buffering and protecting the falling elevator to prevent accidents from occurring to the elevator and the passengers in its car. The counterweight frame and the elevator car are suspended on both sides of the traction wheel of the driving host by traction steel ropes. During the long-term operation of the steel ropes, stretching deformation will occur, causing the traction steel ropes to permanently elongate. Since the car side can be accurately positioned by the leveling induction device, the elongation of the steel ropes accumulates concentratedly on the counterweight frame side. After the steel ropes elongate to a certain length, when the counterweight frame runs to the lowest position of the pit and the buffer gap between the buffer impact mechanism and the pit buffer is less than the minimum buffer gap requirement, it is easy to accidentally touch the pit buffer, resulting in the phenomenon of car slipping.

[0003] The existing buffer impact mechanism is composed of multiple impact components connected in series and stacked. When the phenomenon of steel rope elongation occurs, the commonly used solution is to directly disassemble and remove some impact components from the counterweight frame. This method will directly reduce the overall weight of the counterweight frame and affect the running safety of the car. Summary of the Invention

[0004] Based on this, in view of the technical problem that directly disassembling some impact components reduces the overall weight of the counterweight frame and affects the running safety of the car, it is necessary to provide a buffer impact mechanism and a counterweight buffer system.

[0005] To achieve the above object, the present application adopts the following technical solutions: A buffer impact mechanism includes multiple sets of impact components connected movably. Each set of impact components is provided with a connection structure that cooperates with the counterweight frame and can be switched between the following two states:

[0006] Stacked state: The impact components are longitudinally stacked in sequence. The impact component at the uppermost position is connected to the counterweight frame by its own connection structure, and the impact component at the lowermost position cooperates with the buffer.

[0007] Horizontal row state: Among two adjacent sets of impact components in the stacked state, the lower impact component is connected to the counterweight frame by its own connection structure and exposes the bottom surface of the upper impact component, so that the bottom surface of the upper impact component cooperates with the buffer.

[0008] The following also provides several optional ways, but they are not additional limitations to the above general solution, but only further supplements or optimizations. Without technical or logical contradictions, each optional way can be combined with the above general solution alone, or multiple optional ways can be combined with each other.

[0009] Optionally, the multiple sets of impact components are sequentially movably connected, and the movable connection manner between two adjacent sets of impact components is as follows:

[0010] Detachable connection, and two states are switched by disassembly; or

[0011] Rotational connection, and two states are switched by relative rotation; or

[0012] Sliding connection, and two states are switched by relative sliding;

[0013] In the stacked state, two adjacent sets of impact components are kept stacked and fixed by fasteners.

[0014] Optionally, in the stacked state, the topmost one is the first impact component, and the first impact component includes:

[0015] A first connecting member as a connection structure;

[0016] A first impact plate that cooperates with the buffer in the horizontal state;

[0017] A first support body that abuts between the first connecting member and the first impact plate;

[0018] Wherein, at least one of the first impact plate and the first support body is movably connected to another impact component adjacent to the first impact component.

[0019] Optionally, in the stacked state, the bottommost one is the second impact component, and the second impact component includes:

[0020] A second impact plate that cooperates with the buffer in the stacked state;

[0021] A second connecting member as a connection structure and connected to the second impact plate;

[0022] A second support body fixedly connected to the second impact plate;

[0023] In the stacked state, the second support body is movably connected to the upper impact component adjacent to the second impact component, and the second support body abuts between the upper impact component and the second impact plate.

[0024] Optionally, the first support body has a hollow area, the first impact plate is rotatably connected to the first support body, and in the horizontal state, the first impact plate has:

[0025] A first position that closes the hollow area and cooperates with the buffer;

[0026] and a second position that rotates around the first support to open the hollow area, in which the buffer can penetrate the hollow area and cooperate with the first connecting member.

[0027] Optionally, there are two sets of the impact components, which are arranged side by side in a horizontal row state, and the first support and the second impact component are respectively hinged to the same side of the first impact plate.

[0028] Optionally, in the stacked state, on one side of the first support, the second impact component and the first impact plate away from their hinged parts, there are connecting holes that cooperate with each other, and they are fixed to each other by fasteners passing through the connecting holes.

[0029] Optionally, the first support includes:

[0030] a first connecting plate fixedly connected to the first connecting member;

[0031] a second connecting plate rotatably connected to the first impact plate and arranged parallel to the first connecting plate;

[0032] and a first support member connected between the first connecting plate and the second connecting plate.

[0033] Optionally, the second support includes:

[0034] a third connecting plate hinged to the first impact plate;

[0035] a second support member connected between the second impact plate and the third connecting plate.

[0036] The present application also provides a counterweight buffer system, which includes a buffer installed at the bottom of the hoistway and an impact mechanism installed at the bottom of the counterweight frame and cooperating with the buffer, and the impact mechanism is the buffer impact mechanism described above.

[0037] For the buffer impact mechanism and the counterweight buffer system provided by the present application, when multiple sets of impact components are switched from being longitudinally stacked to a horizontal row state, the overall height of the buffer impact mechanism in the vertical direction decreases, so that the buffer gap between the buffer impact mechanism and the pit buffer increases, and the buffer gap meets the requirement of being less than the minimum buffer gap, preventing accidental contact with the pit buffer and preventing the phenomenon of car slipping. By connecting multiple impact components movably, such as in a folding and flipping manner, the number of impact components below the impact component at the top is reduced, and the lower impact components are fixed to the counterweight frame, which can not only adjust the height of the buffer impact mechanism but also keep the overall weight of the counterweight frame unchanged, ensuring the stability and safety of the operation of the counterweight frame. The buffer impact mechanism has strong anti-collision ability, is very convenient for installation and disassembly, and there is no safety risk of the impact component falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 Schematic structural diagram of the counterweight buffer system provided by an embodiment of the present application;

[0039] Figure 2 is Figure 1 Stereoscopic structural diagram of the buffer impact mechanism and the counterweight frame shown in the figure;

[0040] Figure 3 is Figure 1 Schematic structural diagram of the buffer impact mechanism in a longitudinally stacked state;

[0041] Figure 4 is Figure 1 Exploded structural diagram of the buffer impact mechanism in a longitudinally stacked state shown in the figure;

[0042] Figure 5 is Figure 4 Schematic structural diagram of the second impact plate and the second support body in the buffer impact mechanism from another perspective shown in the figure;

[0043] Figure 6 is Figure 1 Schematic structural diagram of the buffer impact mechanism in a laterally arranged side-by-side state and the first impact plate in the first position shown in the figure;

[0044] Figure 7 is Figure 1 Schematic structural diagram of the buffer impact mechanism in a laterally arranged side-by-side state and the first impact plate switching between the first position and the second position shown in the figure;

[0045] Figure 8 is Figure 7 Schematic installation structure diagram of the buffer impact mechanism shown in the figure;

[0046] Figure 9 is Figure 1 Schematic structural diagram of the buffer impact mechanism in a laterally arranged side-by-side state and the first impact plate in the second position shown in the figure.

[0047] Explanation of the reference numerals in the figure is as follows:

[0048] 100. Buffer impact mechanism; 10. First impact component; 11. First connecting piece; 111. Impact bottom plate; 112. Connecting piece; 1121. Vertical side; 1122. Horizontal side; 12. First impact plate; 13. First support body; 131. First connecting plate; 132. First support member; 133. Second connecting plate; 20. Second impact component; 21. Second impact plate; 22. Second support body; 221. Third connecting plate; 222. Second support member; 23. Second connecting piece; 231. Connecting bottom plate; 232. Bent edge; 30-34. Fasteners; 41. First hinge shaft; 42. Second hinge shaft; 50-54. Connecting holes; 200. Buffer; 300. Counterweight frame. Detailed implementation mode

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0050] It should be noted that when a component is referred to as being "connected" to another component, it can be directly connected to the other component or there may also be an intermediate component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments, and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0052] Please refer to Figures 1 to 9 In one embodiment of the present application, a buffer impact mechanism 100 is provided, which includes multiple sets of impact components that are movably connected, and each set of impact components is provided with a connection structure that cooperates with the counterweight frame 300. The multiple sets of impact components have two states, a stacked state and a horizontal row state, and can be switched between these two states. It can be understood that the multiple sets of impact components can be two sets of impact components, three sets of impact components, four sets of impact components, etc., and the number of sets of impact components is set according to the buffer gap required by the buffer 200.

[0053] In the stacked state, the impact components are longitudinally stacked in sequence. The impact component at the uppermost position is connected to the counterweight frame 300 by its own connection structure, and the impact component at the lowermost position cooperates with the buffer 200. At this time, the buffer gap between the buffer 200 and the buffer impact mechanism 100 is the smallest.

[0054] In the horizontal arrangement state, among two adjacent sets of impact components in the stacked state, the lower impact component is connected to the counterweight frame 300 by its own connection structure and exposes the bottom surface of the upper impact component, so that the bottom surface of the upper impact component cooperates with the buffer 200. It can be understood that when multiple sets of impact components are switched from the stacked state to the horizontal arrangement state, for example, when there are four sets of impact components, the lower impact component can be the second impact component stacked longitudinally in sequence, and the corresponding upper impact component is the first impact component; or the lower impact component is the third impact component stacked longitudinally in sequence, and the corresponding upper impact component is the second impact component; or the lower impact component is the fourth impact component stacked longitudinally in sequence, and the corresponding upper impact component is the third impact component. In the horizontal arrangement state, the lower impact component can be connected to the counterweight frame 300, without reducing the overall weight of the counterweight frame 300 and not affecting the running safety of the car.

[0055] Among them, when any two adjacent sets of impact components are switched from the stacked state to the horizontal arrangement state, the horizontal arrangement state can be understood as a non-stacked state, and the non-stacked state can be that two adjacent sets of impact components are arranged side by side horizontally or horizontally offset, so as to increase the buffer gap between the buffer 200 and the buffer impact mechanism 100.

[0056] Multiple sets of impact components are sequentially movably connected to facilitate switching between the stacked state and the horizontal arrangement state. There can be various movable connection methods between two adjacent sets of impact components. For example, two adjacent sets of impact components are detachably connected, and the two states are switched by disassembly. When two adjacent sets of impact components are switched to the horizontal arrangement state, the connection member between the two adjacent sets of impact components is removed to separate the two sets of impact components, and the connection member is assembled when needed to realize the movable connection of the sets of impact components.

[0057] In another embodiment, two adjacent sets of impact components are rotatably connected, and the two states are switched by relative rotation, for example, by adding a rotating shaft, etc.; in other embodiments, two adjacent sets of impact components are slidably connected, and the two states are switched by relative sliding, for example, by adding guide rails and sliders.

[0058] In the stacked state, two adjacent sets of impact components are kept stacked and fixed by the fastener 30. The fastener 30 can adopt existing technologies such as bolts to avoid unnecessary relative movement between two adjacent sets of impact components. In one of the embodiments, the installation method of the fastener 30 can refer to Figure 3 as shown.

[0059] It can be understood that the ways of movably connecting multiple sets of impact components can coexist in multiple ways or all be a single connection method. In one embodiment, when the number of sets of impact components is four, the first set of impact components is detachably connected to the second set of impact components, the second set of impact components is rotatably connected to the third set of impact components, and the third set of impact components is slidably connected to the first set of impact components, etc. Then, in this embodiment, the ways of movably connecting multiple sets of impact components coexist in multiple ways.

[0060] When there are exactly two sets of impact components, the first impact component 10 located above and the second impact component 20 located below. It can be understood that when there are three sets, four sets or more sets of impact components, in the stacked state, the first impact component 10 is at the topmost and the second impact component 20 is at the bottommost.

[0061] In one embodiment, please refer to FIGS. 1 to Figure 3 、 Figure 6 , when there are two sets of impact components, the buffer impact mechanism 100 includes a first impact component 10 and a second impact component 20 that are movably connected. Both impact components are provided with connection structures that cooperate with the counterweight frame 300. The two impact components have a longitudinally stacked state and a horizontally arranged state, and the two impact components can be switched between the two states. Among them, the horizontally arranged state is a horizontally side-by-side arrangement state in the Figure 6 example. It can be understood that the longitudinal direction is the vertical direction, the horizontal direction is perpendicular to the vertical direction, and the way of movably connecting the first impact component 10 and the second impact component 20 can be a rotational connection, a threaded connection, a hinge, etc.; the buffer impact mechanism 100 at the bottom of the counterweight frame 300 can be one or two or more. As shown in Figure 1 , there are two buffer impact mechanisms 100.

[0062] Please refer to Figures 1 to 5 , when the two impact components are longitudinally stacked with each other, the impact component at the upper position is connected to the counterweight frame 300 by its own connection structure. At this time, the first impact component 10 and the second impact component 20 are serially stacked in the vertical direction at the bottom of the counterweight frame 300. In this embodiment, the second impact component 20 is stacked below the first impact component 10. As a whole of the buffer impact mechanism 100, since the second impact component 20 is stacked below the first impact component 10, the buffer gap between the buffer impact mechanism 100 and the buffer 200 in the bottom pit is: the buffer gap between the second impact component 20 and the bottom pit buffer 200.

[0063] Please refer to Figure 6, when the two impact components are arranged side by side in the transverse direction, it can be understood that the arrangement side by side in the transverse direction is only one of the horizontal row states. Each impact component is respectively connected to the counterweight frame 300 by its own connection structure. At this time, the buffer gap between the buffer impact mechanism 100 and the buffer 200 in the pit is: the buffer gap between the first impact component 10 and the buffer 200 in the pit.

[0064] When the two impact components are switched from the longitudinally stacked state to the horizontal row state, the overall height of the buffer impact mechanism 100 in the vertical direction decreases, so that the buffer gap between the buffer impact mechanism 100 and the buffer 200 in the pit increases. The buffer gap meets the requirement of being less than the minimum buffer gap, and will not accidentally touch the buffer 200 in the pit, preventing the phenomenon of the car slipping. At the same time, when the two impact components are arranged side by side in the transverse direction, they are both connected to the counterweight frame 300, which will not reduce the overall weight of the counterweight frame 300 and will not affect the running safety of the car, ensuring the stability and safety of the operation of the counterweight frame 300.

[0065] In one embodiment, the second impact component 20 rotates relative to the first impact component 10 around an axis, for example, a page-turning rotation, and after rotation, it is connected to the counterweight frame 300 through its respective connection structures. Specifically, the second impact component 20 and the first impact component 10 are cooperated by a rotating shaft pin or a hinge. It can be understood that the second impact component 20 rotates relative to the axis of the rotating shaft pin, and the installation and disassembly of the two impact components are convenient, and there is no safety risk of the impact component falling.

[0066] In one embodiment, the first impact component 10 includes a first connecting member 11, a first support body 13, and a first impact plate 12. The first impact component 10 is connected to the counterweight frame 300 through the first connecting member 11. The first impact plate 12 is used to cooperate with the buffer 200 to form a buffer gap, and the first support body 13 plays a supporting role between the first connecting member 11 and the first impact plate 12. Among them, at least one of the first impact plate 12 and the first support body 13 is movably connected to another impact component adjacent to the first impact component 10. It can be understood that when there are two sets of impact components, the other adjacent impact component is the second impact component 20. The second impact component 20 is movably connected relative to the first impact plate 12, or the second impact component 20 is movably connected relative to the first support body 13. When there are multiple sets of impact components, the other adjacent impact component is any impact component that abuts against the first impact component 10 in the stacked state.

[0067] The first connecting member 11 is connected to the bottom of the counterweight frame 300 as the connection structure of the first impact component 10, and the first impact component 10 is fixedly connected to the counterweight frame 300 through the first connecting member 11. It can be understood that the fixed connection can be welding, threaded bolt connection or connection through the fastener 31.

[0068] In the horizontal state, the first impact plate 12 cooperates with the buffer 200. It can be understood that the buffer gap between the buffer impact mechanism 100 and the buffer 200 in the pit is: the buffer gap between the first impact plate 12 and the buffer 200 in the pit. When the two impact components are longitudinally stacked on top of each other, the first impact component 10 serves as a support component between the second impact component 20 and the counterweight frame 300.

[0069] The first support body 13 is connected between the first connecting piece 11 and the first impact plate 12, and abuts against the first connecting piece 11 and the first impact plate 12 at both ends in the vertical direction. Specifically, the first support body 13 includes a first connecting plate 131, a first support piece 132, and a second connecting plate 133. The first connecting plate 131 abuts against the first connecting piece 11, the second connecting plate 133 abuts against the first impact plate 12, and the first support piece 132 is connected between the first connecting plate 131 and the second connecting plate 133 to play a supporting role. The first connecting plate 131 and the first connecting piece 11 are relatively fixedly connected by a fastener 32. It can be understood that other connection methods such as bolts and screws can also be used. More specifically, the first connecting plate 131 and the second connecting plate 133 are arranged in parallel, which also enhances the supporting effect, and the first support piece 132 is cylindrical.

[0070] In one embodiment, the second impact component 20 includes a second support body 22, a second impact plate 21, and a second connecting piece 23. The second support body 22 abuts against the first impact plate 12 to connect the second impact plate 21 to the bottom of the adjacent upper impact component, so as to realize the longitudinal stacking of the two impact components on top of each other. In the stacked state, the second support body 22 is movably connected to the upper impact component adjacent to the second impact component 20, and the second support body 22 abuts between the upper impact component and the second impact plate 21. It can be understood that when there are two sets of impact components, the upper impact component adjacent to the second impact component 20 is the first impact component 10.

[0071] The second connecting piece 23 is connected to the bottom of the counterweight frame 300. A connection hole 54 is provided on the second connecting piece 23, and the second connecting piece 23 is fixed to the bottom of the counterweight frame 300 by passing a fastener 34 through the connection hole 54. When longitudinally stacked on top of each other, the second connecting piece 23 is separated from the second impact plate 21. Further, the second connecting piece 23 and the first connecting piece 11 are arranged side by side horizontally to realize the horizontal side-by-side arrangement of the two impact components.

[0072] When vertically stacked, the second support body 22 plays a supporting role between the first impact plate 12 and the second impact plate 21, and the second support body 22 is fixedly connected to the second impact plate 21. The second impact plate 21 cooperates with the buffer 200. It can be understood that the buffer gap between the buffer impact mechanism 100 and the buffer 200 in the pit is: the buffer gap between the second impact plate 21 and the buffer 200 in the pit. Both ends of the second support body 22 abut between the first impact plate 12 and the second impact plate 21. At this time, the second support body 22 is located above the second impact plate 21.

[0073] When switched to the horizontal side-by-side arrangement, the second impact assembly 20 rotates relative to the first impact assembly 10. That is, the second support body 22 and the second impact plate 21 rotate in a page-turning manner relative to the first impact plate 12, and the second impact plate 21 is connected to the second connecting member 23 serving as a connecting structure by matching the fastener 33 with the connection hole 53. At this time, the second impact plate 21 is located above the second support body 22.

[0074] Furthermore, the second support body 22 and the second impact plate 21 are of an integral structure, and the second connecting member 23 and the second impact plate 21 are detachably connected. When vertically stacked, the second connecting member 23 is separated from the second impact plate 21. When horizontally arranged side by side, the second connecting member 23 is connected to the second impact plate 21.

[0075] In another embodiment, the first support body 13 is provided with a hollow portion, having a hollow area with both ends open. The first connecting plate 131 and the second connecting plate 133 are formed by radially protruding from the first support member 132. The first impact plate 12 can rotate relative to the first support body 13. That is, the first impact plate 12 rotates relative to the second connecting plate 133.

[0076] Please refer to Figures 6 to 9 , in the adjusted state, the first impact plate 12 has two positions: the first position where the hollow area is closed and it cooperates with the buffer 200; and the second position where it rotates around the first support body 13 to open the hollow area. It can be understood that in the first position, the first impact plate 12 closes the bottom of the first support body 13, and in the second position, the first impact plate 12 opens the bottom of the first support body 13. When switching from the first position to the second position, the first impact plate 12 rotates around the first support body 13 and is connected to the second support body 22, being relatively fixed to the second support body 22. It can be understood that the rotation of the first impact plate 12 around the first support body 13 can be a rotation shaft pin fit or a hinge fit.

[0077] When in the first position, the buffer gap between the buffer impact mechanism 100 and the buffer 200 in the pit is: the buffer gap between the first impact plate 12 and the buffer 200 in the pit. When in the second position, the buffer gap between the buffer impact mechanism 100 and the buffer 200 in the pit is: the buffer gap between the first connecting member 11 and the buffer 200 in the pit, that is, the buffer 200 can penetrate through the first support body 13 and cooperate with the first connecting member 11.

[0078] In one embodiment, when there are two sets of impact components and they are arranged side by side in a horizontal row state, the first support body 13 and the second impact component 20 are respectively hinged to the same side of the first impact plate 12.

[0079] Specifically, a first hinge shaft 41 for hinging the first support body 13 and a second hinge shaft 42 for hinging the second support body 22 are installed on the same side of the first impact plate 12. In one embodiment, there are two first hinge shafts 41 distributed along the same edge. Similarly, there are two second hinge shafts 42. In other embodiments, the first hinge shaft 41 or the second hinge shaft 42 can be one, three, multiple, etc.

[0080] In a stacked state, on the sides of the first support body 13, the second impact component 20, and the first impact plate 12 away from their hinged parts, there are mating connection holes 50, and they are fixed to each other by fasteners 30 passing through the connection holes 50. For the connection holes 50, please refer to Figure 4 and Figure 5 as shown. When it is necessary to switch to the horizontal row state, the fasteners 30 can be disassembled.

[0081] Specifically, the second support body 22 includes a third connecting plate 221 and a second support member 222. The third connecting plate 221 is hinged to the first impact plate 12. The second support member 222 is connected between the second impact plate 21 and the third connecting plate 221, and the second support member 222 is respectively enclosed by the second impact plate 21 and the third connecting plate 221, and the second impact plate 21 and the third connecting plate 221 protrude radially outward relative to the second support member 222. Specifically, the second support member 222 is cylindrical and has a square cross-section.

[0082] In another embodiment, the first connecting member 11 includes an impact bottom plate 111 and two connecting pieces 112 arranged on both sides of the impact bottom plate 111. The impact bottom plate 111 abuts against the first support body 13, and the connecting pieces 112 are connected to the bottom of the counterweight frame 300. The impact bottom plate 111 and the connecting pieces 112 are detachably connected. The connecting pieces 112 are bent into an L shape. The vertical side 1121 of the connecting piece 112 is connected to the bottom of the counterweight frame 300, and the horizontal side 1122 of the connecting piece 112 abuts against the impact bottom plate 111.

[0083] In another embodiment, the second connecting member 23 has a connecting base plate 231 and two bent edges 232 distributed on both sides of the connecting base plate 231. The connecting base plate 231 and the two bent edges 232 are integrally formed. The two bent edges 232 are fixedly connected to the bottom of the counterweight frame 300. In the state of being arranged side by side horizontally, the second impact plate 21 abuts against the connecting base plate 231 to realize the horizontal side-by-side arrangement of the second impact assembly 20 and the first impact assembly 10. It can be understood that the second connecting member 23 can be one or more.

[0084] In one embodiment, in combination Figures 3 to 6 、 Figure 8 , the first connecting member 11 is passed through the connecting hole 51 by the fastener 31 to fixedly connect the first connecting member 11 to the counterweight frame 300. The first connecting member 11 and the first connecting plate 131 are fixedly connected by passing the fastener 32 through the connecting hole 52. The fasteners 32 are arranged oppositely on both sides of the first connecting plate 131, and two fasteners 32 are distributed on each side.

[0085] In the stacked state, the fastener 30 is simultaneously passed through the corresponding connecting holes 50 on the second connecting plate 133, the first impact plate 12, and the third connecting plate 221. The first connecting plate 131, the first support member 132, and the second connecting plate 133 are of an integral structure. One side of the second connecting plate 133 is hinged to the first impact plate 12. The other side of the second connecting plate 133 is provided with a connecting hole 50, and the side of the first impact plate 12 away from the hinge is also provided with a connecting hole 50. By passing the fastener 30 through the connecting holes 50 on the second connecting plate 133 and the first impact plate 12, the detachable connection of the second connecting plate 133 and the first impact plate 12 is realized. The third connecting plate 221, the second support member 222, and the second impact plate 21 are of an integral structure. One side of the third connecting plate 221 is hinged to the first impact plate 12. The other side of the third connecting plate 221 is provided with a connecting hole 50. By passing the fastener 30 through the connecting hole 50, the detachable connection of the third connecting plate 221 with the first impact plate 12 and the second connecting plate 133 is realized.

[0086] In the horizontal state, the fastener 30 is removed from the corresponding connection hole 50 on the third connection plate 221 and selectively connected to the corresponding connection hole 50 on the first impact plate 12. Meanwhile, the fastener 33 passes through the corresponding connection holes 53 on the second impact plate 21 and the second connecting member 23. The second impact plate 21 is detachably connected to the second connecting member 23 by the fastener 33 passing through the connection hole 53. The fasteners 33 installed on the second impact plate 21 are distributed on the same side and cooperate with the connection bottom plate 231 of the second connecting member 23. The second connecting member 23 is fixedly connected to the counterweight frame 300 by the fastener 34 passing through the connection hole 54. It can be understood that in other embodiments, the number of the fasteners 30 can be set as required, and the fasteners 30 are installed in cooperation with the corresponding connection holes at corresponding positions. The numbers of the other fasteners (31, 32, 33, 34) are also correspondingly set as required.

[0087] In another embodiment of the present application, a counterweight buffer system is further provided. Please refer to Figure 1 , which includes a buffer 200 installed at the bottom of the hoistway and an impact mechanism installed at the bottom of the counterweight frame 300 and cooperating with the buffer 200. The impact mechanism is the buffer impact mechanism 100 in any of the foregoing embodiments. This counterweight buffer system can adjust the buffer gap, prevent accidental contact with the pit buffer, and prevent the car from slipping.

[0088] After the counterweight frame 300 is used for a period of time and the steel wire rope elongates to a certain extent, the second impact component 20 of the buffer impact mechanism 100 can be loosened and separated from the fastener 30 of the first impact plate 12 and the second connection plate 133. The second impact component 20 can rotate downward around the second hinge shaft 42 between it and the first impact plate 12 and rotate from the back side to the horizontal and then be fixed to the second connecting member 23 by the fastener 30. At this time, the first impact plate 12 is still fixed to the first impact component 10 and serves the task of impacting the buffer 200, so as to ensure that when the counterweight frame 300 runs to the lowest position of the pit, the buffer gap between the first impact plate 12 of the buffer impact mechanism 100 and the pit buffer 200 is not less than the requirement of the minimum buffer gap. In addition, the overall weight of the counterweight frame 300 remains unchanged, improving the safety and stability of the elevator operation.

[0089] When the elevator continues to be used for a period of time and the steel wire rope elongates to a certain extent again, the fastener 30 connecting the first impact plate 12 of the buffer impact mechanism 100 and the second connecting plate 133 can be loosened and separated. The first impact plate 12 is rotated downward around the first hinge axis 41 of the hinge between it and the second connecting plate 133. When it rotates to the horizontal and adheres to the surface of the third connecting plate 221, it is fixed to the second impact assembly 20 with the fastener 30. Since the interior of the first support 13 is a hollow structure, the bottom buffer 200 can pass through the hollow position of the first support member 132 of the first support 13 and contact the impact bottom plate 111 of the first connecting member 11, performing the task of impacting with the buffer 200. This ensures that when the counterweight frame 300 runs to the lowest position of the pit, the buffer gap between the impact bottom plate 111 of the first connecting member 11 of the buffer impact mechanism of the buffer 200 and the pit buffer 200 is still not less than the requirement of the minimum buffer gap. At the same time, the overall weight of the counterweight frame 300 remains unchanged, improving the safety and stability of the elevator operation.

[0090] The buffer impact mechanism 100 provided in this application is movably connected by multiple impact assemblies, for example, in a folding and flipping manner, to reduce the number of impact assemblies below the first connecting member 11 and fix the folded impact assemblies to the second connecting member 23. This can not only adjust the height of the buffer impact mechanism of the buffer 200 but also keep the overall weight of the counterweight frame 300 unchanged, ensuring the stability and safety of the operation of the counterweight frame 300. The buffer impact mechanism 100 has strong anti-collision ability, is very convenient for installation and disassembly, and there is no safety risk of the impact assembly falling.

[0091] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification. When the technical features in different embodiments are shown in the same drawing, it can be regarded that the drawing also discloses the combination examples of the various embodiments involved.

[0092] The above-described embodiments only represent several implementation manners of this application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of this application, several deformations and improvements can still be made, and these all belong to the protection scope of this application. Therefore, the protection scope of this application patent should be subject to the appended claims.

Claims

1. A buffer impact mechanism, characterized in that, Comprising multiple sets of impact components connected movably, each set of impact components is provided with a connection structure that cooperates with the counterweight frame and can be switched between the following two states: Stacked state, the impact components are longitudinally stacked in sequence, the impact component at the uppermost position is connected to the counterweight frame by its own connection structure, and the impact component at the lowermost position cooperates with the buffer; Horizontal row state, among two adjacent sets of impact components in the stacked state, the lower impact component is connected to the counterweight frame by its own connection structure and exposes the bottom surface of the upper impact component, so that the bottom surface of the upper impact component cooperates with the buffer; In the stacked state, the one at the uppermost position is the first impact component, and the first impact component includes: A first connecting member as the connection structure; A first impact plate that cooperates with the buffer in the horizontal row state; A first support body that abuts between the first connecting member and the first impact plate; Wherein, at least one of the first impact plate and the first support body is movably connected to another impact component adjacent to the first impact component; The first support body has a hollow area, the first impact plate is rotatably connected to the first support body, and in the horizontal row state, the first impact plate has: A first position that closes the hollow area and cooperates with the buffer; And a second position that rotates around the first support body to open the hollow area, in this second position, the buffer can penetrate the hollow area to cooperate with the first connecting member.

2. The buffer impact mechanism according to claim 1, characterized in that, The multiple sets of impact components are movably connected in sequence, and the movable connection mode between two adjacent sets of impact components is: Detachable connection, and the two states are switched by disassembly; or Rotational connection, and the two states are switched by relative rotation; or Sliding connection, and the two states are switched by relative sliding; In the stacked state, two adjacent sets of impact components are kept stacked and fixed by fasteners.

3. The buffer impact mechanism according to claim 1, wherein In the stacked state, the one at the lowermost position is the second impact component, and the second impact component includes: A second impact plate that cooperates with the buffer in the stacked state; A second connecting member as the connection structure and connected to the second impact plate; A second support body fixedly connected to the second impact plate; In the stacked state, the second support body is movably connected to the upper impact component adjacent to the second impact component, and the second support body abuts between the upper impact component and the second impact plate.

4. The buffer impact mechanism according to claim 1, characterized in that, There are two sets of impact components and they are arranged side by side in the horizontal row state, the first support body and the second impact component are respectively hinged to the same side of the first impact plate.

5. The buffer impact mechanism according to claim 4, characterized in that, In the stacked state, on one side of the first support body, the second impact component and the first impact plate away from their hinged parts, there are mutually cooperating connection holes, and they are fixed to each other by fasteners passing through the connection holes.

6. The buffer impact mechanism according to claim 1, wherein, The first support body includes: A first connecting plate fixedly connected to the first connecting member; A second connecting plate rotatably connected to the first impact plate and arranged parallel to the first connecting plate; And a first support member connected between the first connecting plate and the second connecting plate.

7. The buffer impact mechanism according to claim 3, wherein, The second support body includes: A third connecting plate hinged to the first impact plate; A second support member connected between the second impact plate and the third connecting plate.

8. A counterweight buffering system, comprising a buffer installed at the bottom of the hoistway and an impact mechanism installed at the bottom of the counterweight frame and cooperating with the buffer, characterized in that The impact mechanism is a buffer impact mechanism as described in any one of claims 1 to 7.

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