A twin elevator anti-collision triggering device

Abstract

The application discloses a double elevator anti-collision triggering device, and aims at solving the problem of lacking of simple structure and stable anti-collision mechanism in the prior art, and adopts the following technical scheme: an upper triggering swing rod and an upper lifting swing rod are arranged on an upper car, the upper triggering swing rod and the upper lifting swing rod rotate around respective rotation centers; the upper lifting swing rod is connected with the upper triggering swing rod through a transmission assembly; the upper lifting swing rod is connected with a safety clamp of the upper car through an upper transmission member; a lower lifting swing rod is arranged on a lower car, the lower lifting swing rod rotates around a rotation center thereof, and the lower lifting swing rod is connected with a safety clamp of the lower car through a lower transmission member; an upper triggering member for triggering the upper car to brake and a lower triggering member for triggering the lower car to brake are arranged.When the two cars are about to collide, the double elevator anti-collision triggering device can trigger the safety clamps of the two cars to brake in an emergency, so that the mutual collision of the cars is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of double elevator anti-collision, more particularly, it relates to a double elevator anti-collision triggering device. BACKGROUND

[0002] Double elevator refers to an elevator system with two carriages installed in the same shaft, and the two carriages can independently run up and down in the same shaft. In order to ensure that the two carriages can safely run in the shaft without collision, the minimum allowable safe running distance between the two carriages is usually dynamically set, and the smaller the relative running speed of the two carriages is, the smaller the minimum allowable safe distance is. At the same time, the system will track and judge in real time, and once the safe distance between the two carriages is less than the minimum allowable safe running distance at the set relative speed of the carriages, the elevator will immediately implement the safety protection mode.

[0003] The safety protection mode of the double elevator in the prior art is mainly realized by the electrical safety protection mode, and in the case of failure of the safety protection mode, the double elevator is likely to collide with each other. The mechanical anti-collision mechanism has strong stability and can prevent the two carriages in the double elevator from colliding with each other as the last protection barrier in the case of failure of the electrical safety protection mode.

[0004] However, there is a lack of a simple and stable anti-collision mechanism in the prior art, which can prevent the two carriages from colliding with each other in the case of failure of the electrical safety protection mode. SUMMARY

[0005] The present application overcomes the deficiency of the prior art that lacks a simple and stable anti-collision mechanism, and provides a double elevator anti-collision triggering device, which can trigger the safety clamps of the two carriages to perform emergency braking when the two carriages are about to collide during the movement of the carriages, thereby preventing the carriages from colliding with each other. In addition, the present application can directly install the present application without changing the arrangement form of the mechanical structure on the existing carriages, thereby realizing the function of mechanical anti-collision.

[0006] In order to solve the above technical problems, the present application adopts the following technical scheme: a double elevator anti-collision triggering device, the double elevator comprising an upper carriage and a lower carriage, the double elevator anti-collision triggering device comprising:

[0007] An upper triggering swing rod and an upper lifting swing rod are arranged on the upper carriage, and the upper triggering swing rod and the upper lifting swing rod rotate around their respective rotation centers; the upper lifting swing rod is connected with the upper triggering swing rod through a transmission assembly; and the upper lifting swing rod is connected with the safety clamps of the upper carriage through an upper transmission member;

[0008] The lower lifting swing rod is arranged at the lower car and rotates around its rotation center, and the lower lifting swing rod drives the safety clamp of the lower car through the lower transmission member;

[0009] The upper trigger member triggers the upper car to brake, and the lower trigger member triggers the lower car to brake.

[0010] When the two cars collide in the shaft, the upper trigger member collides with the upper trigger swing rod, so that the upper trigger swing rod rotates around the rotation center, the upper trigger swing rod drives the upper lifting swing rod to rotate through the transmission assembly, the upper lifting swing rod drives the upper transmission member to move when rotating, so that the safety clamp on the upper car brakes, thereby braking the upper car. At the same time, the lower trigger member rotates with the lower lifting swing rod, and the lower lifting swing rod drives the safety clamp on the lower car to brake through the lower transmission member. Therefore, the simultaneous braking of the upper car and the lower car can be achieved, thereby preventing the two cars from colliding when the two cars are moving. If the electrical safety protection mode fails, the two cars can be braked through the double elevator anti-collision triggering device in the application, thereby effectively preventing the two cars from colliding. Moreover, the pure mechanical mode is adopted for triggering, so that the structure is simple and stable.

[0011] Preferably, one end of the upper trigger swing rod is provided with a first rotation center, and the other end of the upper trigger swing rod is provided with an upper collision point and connected with the transmission assembly.

[0012] The upper lifting swing rod is provided with a second rotation center, and the transmission assembly and the upper transmission member are arranged on the same side of the second rotation center.

[0013] In the normal operation state of the elevator, the upper trigger swing rod and the upper lifting swing rod can maintain the initial state, and after the upper collision member collides with the upper collision point on the upper trigger swing rod, the balance of the upper trigger swing rod is broken, the upper trigger swing rod rotates around the first rotation center, and the upper trigger swing rod drives the upper lifting swing rod to rotate around the second rotation center through the transmission assembly, so that the upper lifting swing rod drives the upper safety clamp through the upper transmission member, and the brake blocks on the upper safety clamp are clamped on both sides of the track.

[0014] Preferably, the upper trigger swing rod is connected with a first spring, the torque of the first spring on the upper trigger swing rod is opposite to the torque of the transmission assembly on the upper trigger swing rod, and the upper trigger rod maintains balance.

[0015] The upper lifting swing rod is connected with a second spring, the torque of the second spring on the upper lifting swing rod is opposite to the torque of the transmission assembly on the upper lifting swing rod, and the upper lifting swing rod maintains balance.

[0016] The torque of the first spring acting on the upper trigger swing lever and the torque of the transmission assembly acting on the upper trigger swing lever enable the upper trigger swing lever to be balanced. The torque of the second spring acting on the upper pull swing lever and the torque of the transmission assembly acting on the upper pull swing lever enable the upper pull swing lever to be balanced.

[0017] Preferably, one end of the upper trigger swing lever is connected with the transmission assembly, and the other end of the upper trigger swing lever is provided with an upper impact point; a first rotation center is arranged between the upper impact point of the upper trigger swing lever and the transmission assembly.

[0018] The upper pull swing lever is provided with a second rotation center, and the transmission assembly and the upper transmission member are arranged on two sides of the second rotation center.

[0019] The use of the first spring and the second spring can be omitted, and the equipment can be conveniently debugged during installation.

[0020] Preferably, the trigger swing lever is connected with a third spring and a fourth spring, the torques of the third spring and the fourth spring acting on the upper trigger swing lever are opposite, and the upper trigger swing lever is balanced.

[0021] The third spring and the fourth spring are arranged on two sides of the upper trigger swing lever, and the elastic coefficients of the third spring and the fourth spring are equal. Thus, the stability of the upper trigger swing lever is improved, and the upper trigger swing lever can be kept at a balanced position when the car normally operates.

[0022] Preferably, the transmission assembly comprises a transmission rope and a rope sleeve sleeved outside the transmission rope; and two ends of the transmission rope are connected with the upper trigger swing lever and the upper pull swing lever respectively.

[0023] The transmission rope cooperates with the rope sleeve, the structure of the rope sleeve can be designed according to actual conditions, and the transmission of force can be conveniently realized.

[0024] Preferably, the upper trigger member and the lower trigger member are long rods; the upper trigger member is arranged at the top of the lower car; and the lower trigger member is arranged at the top of the upper car.

[0025] When the elevators collide with each other, the upper trigger member impacts the upper impact point to realize the swing of the upper trigger swing lever, and the lower trigger member impacts the lower trigger point to realize the swing of the upper pull swing lever.

[0026] Preferably, the upper trigger member and the lower trigger member are long rods; the upper trigger member is fixedly connected with the upper trigger swing lever; and the lower trigger member is fixedly connected with the lower pull swing lever.

[0027] The upper trigger member is connected with the upper trigger swing lever, so that the impact force can be directly applied to the upper trigger swing lever through the upper trigger member when the upper trigger member is impacted, and the structure is more stable; similarly, the lower trigger member is connected with the lower pull swing lever, so that the force can be directly applied to the lower pull swing lever.

[0028] As preferred, the upper car and the lower car are provided with a buffer device abutting against the lower trigger and the upper trigger; the buffer device comprises a buffer cavity, a buffer rod and a buffer elastic piece; one end of the buffer rod is provided with a buffer head sliding in the buffer cavity, and the buffer elastic piece abuts between the buffer head and the bottom of the buffer cavity.

[0029] When the upper car and the lower car collide, the upper trigger and the lower trigger can abut against the end of the buffer rod (abutting groove), so that the buffer head moves in the buffer cavity against the elastic force of the buffer elastic piece, thereby playing a buffering role.

[0030] As preferred, one of the upper car and the lower car is provided with a strike plate, and the other is provided with a buffer; the upper trigger and the lower trigger are triggered prior to the buffer.

[0031] When the two cars are about to contact, the buffer collides against the strike plate, thereby playing a buffering role in the last stage of collision.

[0032] Compared with the prior art, the application has the following beneficial effects:

[0033] (1) The upper car and the lower car can be simultaneously braked, so that when the upper car and the lower car are moving, if the electrical safety protection mode fails, the two cars can be braked through the double elevator anti-collision trigger device, thereby effectively avoiding collision of the two cars; and since the trigger is purely mechanical, the device has the characteristics of simple structure and high stability.

[0034] (2) The application can be improved on the basis of the safety gear synchronization device in the prior art, and only the lower pull lever, the transmission assembly, the first spring and the second spring need to be arranged in the application. The mechanical structure arrangement form of the existing car can be directly installed with the application to realize the function of mechanical anti-collision. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a structural schematic view in the embodiment 1 and the embodiment 2 of the application.

[0036] Figure 2 is a partial enlarged view of the A area in Figure 1

[0037] Figure 3 is a structural schematic view of the safety gear synchronization device of the application.

[0038] Figure 4 is a structural schematic view in the embodiment 3 of the application.

[0039] Figure 5 is a structural schematic view in the embodiment 3 and the embodiment 4 of the application. ​

[0040] Figure 6 is a structural schematic diagram in embodiment 5 of the present application.

[0041] Figure: 1, upper car, 11, upper safety clamp,

[0042] 2, lower car;

[0043] 3, upper trigger swing rod, 301, first rotation center, 302, upper impact point, 303, first spring, 304, third spring, 305, fourth spring, 31, upper pull swing rod, 311, second rotation center, 312, second spring, 32, upper driving piece, 33, upper trigger piece;

[0044] 4, transmission assembly, 41, transmission rope, 42, rope sleeve,

[0045] 5, lower pull swing rod, 51, lower driving piece, 52, lower trigger piece, 53, third rotation center, 54, lower impact point,

[0046] 6, safety clamp synchronization device, 61, synchronization pull rod, 611, abutting ring, 62, first shaft, 63, second shaft, 631, shaft hole, 64, central rotating shaft, 65, spring baffle, 66, reset spring, 67, adjusting nut;

[0047] 7, buffer device, 71, buffer cavity, 72, buffer rod, 721, buffer head, 722, abutting groove, 73, buffer elastic piece;

[0048] 8, heavy block, 81, suspension rope, 82, impact plate, 83, buffer. DETAILED DESCRIPTION

[0049] The technical solutions of the present application will be further described in detail below through specific embodiments and in combination with the drawings:

[0050] Embodiment 1: Referring to Figures 1 to 6 the figure, a doublet elevator anti-collision trigger device, the doublet elevator includes an upper car 1 and a lower car 2, the doublet elevator anti-collision trigger device includes:

[0051] An upper trigger swing rod 3 and an upper pull swing rod 31 are arranged on the upper car 1, the upper trigger swing rod 3 and the upper pull swing rod 31 rotate around their respective rotation centers; the upper pull swing rod 31 is connected with the upper trigger swing rod 3 through a transmission assembly 4; the upper pull swing rod 31 is connected with the safety clamp of the upper car 1 through an upper driving piece 32;

[0052] A lower pull swing rod 5 is arranged on the lower car 2, the lower pull swing rod 5 rotates around its rotation center, and the lower pull swing rod 5 is connected with the safety clamp of the lower car 2 through a lower driving piece 51;

[0053] The upper trigger 33 triggers the upper car 1 to brake, and the lower trigger 52 triggers the lower car 2 to brake.

[0054] In the present application, when the two cars collide in the shaft, the upper trigger 33 collides with the upper trigger swing rod 3, so that the upper trigger swing rod 3 rotates around the rotation center, the upper trigger swing rod 3 drives the upper lifting swing rod 31 to rotate through the transmission assembly 4, the upper lifting swing rod 31 drives the upper transmission 32 to move when rotating, so that the safety clamp on the upper car 1 brakes, thereby making the upper car 1 brake. At the same time, the lower trigger 52 rotates with the lower lifting swing rod 5, and the lower lifting swing rod 5 drives the safety clamp on the lower car 2 to brake through the lower transmission 51.

[0055] Therefore, the simultaneous braking of the upper car 1 and the lower car 2 can be achieved, thereby preventing the two cars from colliding when the upper car 1 and the lower car 2 are moving. If the electrical safety protection mode fails, the two cars can be braked through the double elevator anti-collision trigger device in the present application, thereby effectively avoiding the collision of the two cars. Moreover, the device is triggered in a pure mechanical way, so it has the characteristics of simple structure and high stability.

[0056] Embodiment 2: as shown in Figure 1 , Figure 2 , Figure 3 A double elevator anti-collision trigger device, the double elevator comprising an upper car 1 and a lower car 2, the double elevator anti-collision trigger device comprising:

[0057] The upper trigger swing rod 3 and the upper lifting swing rod 31 are arranged on the upper car 1, and the upper trigger swing rod 3 and the upper lifting swing rod 31 rotate around their respective rotation centers; the upper lifting swing rod 31 is connected with the upper trigger swing rod 3 through the transmission assembly 4; and the upper lifting swing rod 31 is connected with the safety clamp of the upper car 1 through the upper transmission 32.

[0058] The lower lifting swing rod 5 is arranged on the lower car 2, and the lower lifting swing rod 5 rotates around its rotation center; and the lower lifting swing rod 5 is connected with the safety clamp of the lower car 2 through the lower transmission 51.

[0059] The upper trigger 33 triggers the upper car 1 to brake, and the lower trigger 52 triggers the lower car 2 to brake.

[0060] For the convenience of description, the safety clamp arranged on the upper car 1 is an upper safety clamp 11, and the safety clamp arranged on the lower car 2 is a lower safety clamp. A slide rail is arranged in the shaft, and the upper safety clamp 11 and the lower safety clamp slide along the slide rail. When an emergency occurs and braking is needed, the braking blocks on the upper safety clamp 11 and the lower safety clamp are clamped on the track, thereby achieving the braking of the upper car 1 and the lower car 2.

[0061] In one embodiment, one end of the upper trigger swing lever 3 rotates around the first rotation shaft, so that the rotation of the upper trigger swing lever 3 around the first rotation shaft forms a first rotation center 301, and the other end of the upper trigger swing lever 3 is provided with an upper impact point 302, and the upper impact point 302 is connected with the transmission assembly 4;

[0062] The upper pull swing lever 31 is provided with a second rotation center 311, and the upper pull swing lever 31 rotates around the second rotation shaft, so that the rotation of the upper pull swing lever 31 around the second rotation shaft forms the second rotation center 311, and the transmission assembly 4 and the upper transmission member 32 are arranged on the same side of the second rotation center 311.

[0063] In one embodiment, in order to enable the upper trigger swing lever 3 and the upper pull swing lever 31 to maintain the initial state during normal operation of the elevator, the upper trigger swing lever 3 is connected with a first spring 303, the torque of the first spring 303 on the upper trigger swing lever 3 is opposite to the torque of the transmission assembly 4 on the upper trigger swing lever 3, and the upper trigger swing lever 3 is balanced. That is, the torque of the first spring 303 acting on the upper trigger swing lever 3 and the torque of the transmission assembly 4 acting on the upper trigger swing lever 3 enable the upper trigger swing lever 3 to be balanced.

[0064] The upper pull swing lever 31 is connected with a second spring 312, the torque of the second spring 312 on the upper pull swing lever 31 is opposite to the torque of the transmission assembly 4 on the upper pull swing lever 31, and the upper pull swing lever 31 is balanced. That is, the torque of the second spring 312 acting on the upper pull swing lever 31 and the torque of the transmission assembly 4 acting on the upper pull swing lever 31 enable the upper pull swing lever 31 to be balanced.

[0065] Therefore, in the normal operation state of the elevator, the upper trigger swing lever 3 and the upper pull swing lever 31 can maintain the initial state, and when the upper impact member collides with the upper impact point 302 on the upper trigger swing lever 3, the balance of the upper trigger swing lever 3 is broken, the upper trigger swing lever 3 rotates around the first rotation center 301, and the upper trigger swing lever 3 drives the upper pull swing lever 31 to rotate around the second rotation center 311 through the transmission assembly 4, so that the upper pull swing lever 31 pulls the upper safety hook 11 through the upper transmission member 32, and the brake blocks on the upper safety hook 11 are clamped on both sides of the track.

[0066] In one embodiment, the lower pull swing lever 5 rotates around the third rotation shaft, so that the lower pull swing lever 5 rotates around a third rotation center 53 formed by the third rotation shaft. One end of the lower pull swing lever 5 is connected with a lower transmission member 51, and the other end of the lower pull swing lever 5 is provided with a lower impact point 54, that is, the third rotation center 53 is arranged in the middle of the lower impact point 54 and the lower transmission member 51.

[0067] When the lower impact element collides with the lower impact point 54, the lower lifting swing rod 5 can rotate around the third rotation center 53, so that the lower impact point 54 rotates downward, and the lower transmission element 51 rotates upward, so that the lower transmission element 51 moves upward, the brake block of the lower safety clamp is pulled, the brake block of the lower safety clamp is clamped on the track, and the brake of the lower car 2 is realized.

[0068] The upper transmission element 32 and the lower transmission element 51 can be provided in a rope shape or a rod shape, and in the embodiment, the upper transmission element 32 and the lower transmission element 51 are both provided in a long rod.

[0069] In one embodiment, the transmission assembly 4 includes a transmission rope 41 and a rope sleeve 42 sleeved outside the transmission rope 41; both ends of the transmission rope 41 are connected with the upper trigger swing rod 3 and the upper lifting swing rod 31 respectively.

[0070] In one embodiment, in order to improve the braking effect of the upper car 1, two upper safety clamps 11 are arranged on both sides of the upper car 1, and two lower safety clamps are arranged on both sides of the lower car 2.

[0071] In one embodiment, the upper trigger element 33 and the lower trigger element 52 are long rods; the upper trigger element 33 is arranged at the top of the lower car 2; the lower trigger element 52 is arranged at the top of the upper car 1. When the elevators collide with each other, the upper trigger element 33 collides with the upper impact point 302, and the lower trigger element 52 collides with the lower trigger point; since the upper trigger element 33 and the lower trigger element 52 are long rods, the upper impact point 302 and the lower impact point 54 are arranged as circular grooves matched with the long rod ends, so that the upper trigger element 33 and the lower trigger element 52 stably collide with the upper impact point 302 and the lower impact point 54 when the collision occurs.

[0072] In order to realize synchronous braking of the two upper safety clamps 11 on the upper car 1 and synchronous braking of the two lower safety clamps on the lower car 2, a safety clamp synchronization device 6 is arranged on the upper car 1 and the lower car 2.

[0073] As shown in Figure 3 The safety clamp synchronization device 6 includes a synchronization pull rod 61 and shaft assemblies arranged at both ends of the synchronization pull rod 61 respectively. The synchronization pull rod 61 is arranged obliquely at the top of the upper car 1 (the lower car 2), and the shaft assemblies at both ends thereof are connected with the upper transmission element 32 (the lower transmission element 51) of the upper safety clamp 11 (the lower safety clamp) on both sides of the upper car 1 (the lower car 2) respectively; the shaft assemblies at both ends are the same in structure.

[0074] The shaft assembly at both ends comprises a first shaft 62 and a second shaft 63; the first shaft 62 and the second shaft 63 are fixedly connected with a central rotating shaft 64 arranged on the upper car 1 (the lower car 2) and capable of freely rotating; the first shaft 62 and the second shaft 63 cooperate to form an "L" shaped structure through the central rotating shaft 64. The end of the first shaft 62 away from the second shaft 63 is rotationally connected with a synchronous pull rod 61; the end of the second shaft 63 away from the first shaft 62 is connected with an upper driving member 32 (a lower driving member 51).

[0075] In order to be more reasonable and convenient in arrangement, the second shaft 63 is provided with a shaft hole 631 in the embodiment; the second shaft 63 is the same component as the upper lifting and pulling swing rod 31 of the upper car 1; one end of a second spring 312 is connected with the upper car 1, and the other end of the second spring 312 is connected with the shaft hole 631; the end of a transmission rope 41 is connected with the shaft hole 631.

[0076] When the second spring 312 pulls the second shaft 63 to rotate around the central rotating shaft 64, the second shaft 63 pulls the upper driving member 32 (the lower driving member 51) on the upper safety clamp 11 (the lower safety clamp) on one side to realize braking; at the same time, the first rotating shaft is driven to rotate through the central rotating shaft 64; the first rotating shaft pulls the synchronous pull rod 61 when rotating, so that the synchronous pull rod 61 pulls the second shaft 63 on the other side; the second shaft 63 on the other side rotates around the central rotating shaft 64 on the other side, so that the first rotating shaft on the other side rotates, thereby driving the upper safety clamp 11 (the lower safety clamp) on the other side to realize braking.

[0077] The upper car 1 (the lower car 2) is provided with a spring baffle 65, and the synchronous pull rod 61 is arranged on the spring baffle 65; the synchronous pull rod 61 is provided with an abutting ring 611; a reset spring 66 is sleeved on the synchronous pull rod 61, and the two ends of the reset spring 66 are respectively abutted with the abutting ring 611 and the spring baffle 65. At the same time, an adjusting nut 67 capable of adjusting the length of the synchronous pull rod 61 is arranged on the synchronous pull rod 61.

[0078] The reset spring 66 can push the abutting ring 611, so that the synchronous pull rod 61 is kept reset and keeps the initial state.

[0079] As shown in the figure, the upper lifting and pulling swing rod 31 of the upper car 1 and the second shaft 63 in the safety clamp synchronous device 6 where it is located are the same component, that is, the central rotating shaft 64 is the same as the second rotating center 311; and the lower lifting and pulling swing rod 5 on the lower car 2 and the second shaft 63 in the safety clamp synchronous device 6 where it is located are the same component, that is, the central rotating shaft 64 is the same as the third rotating center 53.

[0080] Therefore, this application can be improved based on the existing safety clamp synchronization device 6. It only requires the addition of a lower lifting lever 5, a transmission component 4, a first spring 303, and a second spring 312.

[0081] The working principle of this embodiment is as follows: When the two upper cars 1 and lower cars 2 move toward each other, before the collision occurs, the upper impact member collides with the upper impact point 302 on the upper trigger swing rod 3, and the balance of the upper trigger swing rod 3 is broken. The upper trigger swing rod 3 will rotate around the first rotation center 301. The upper trigger swing rod 3 will drive the upper lifting swing rod 31 to rotate around the second rotation center 311 through the transmission rope 41, so that the upper lifting swing rod 31 pulls the upper safety clamp 11 through the upper transmission member 32, so that the brake block on the upper safety clamp 11 is clamped on both sides of the track.

[0082] At the same time, the lower trigger 52 collides with the lower lifting swing arm 5. When the lower impact member collides with the lower impact point 54, the lower lifting swing arm 5 can rotate around the third rotation center 53, causing the lower impact point 54 to rotate downward and the lower transmission member 51 to rotate upward, causing the lower transmission member 51 to move upward. The lower transmission member 51 pulls the brake block of the lower safety clamp, and the brake block of the lower safety clamp clamps onto the track, thereby achieving the braking of the lower car 2.

[0083] Therefore, it can achieve simultaneous braking of the upper car 1 and the lower car 2, thereby preventing the two cars from colliding if the electrical safety protection mode fails while the upper car 1 and the lower car 2 are moving. Furthermore, since it uses a purely mechanical triggering method, it has the characteristics of simple structure and high stability.

[0084] Furthermore, this application can be improved upon the existing safety clamp synchronization device 6 by simply adding a lifting lever 5, a transmission assembly 4, a first spring 303, and a second spring 312. The arrangement of the existing mechanical structure on the car can be maintained, and this invention can be directly installed to achieve the function of mechanical anti-collision.

[0085] Example 3: As Figure 4 As shown, this embodiment is similar in structure to that in embodiment 2. The difference is that in embodiment 1, the upper trigger lever 3 and the upper lifting lever 31 are mainly controlled by the first spring 303 and the second spring 312 to achieve balance. This method uses springs to achieve fixation, but the difference in the elongation and elastic coefficient of the springs makes the process of debugging the equipment very complicated.

[0086] Therefore, in order to simplify the debugging process of the equipment, the first spring 303 and the second spring 312 are omitted in this embodiment.

[0087] Specifically, one end of the upper trigger lever 3 is connected to the transmission assembly 4, and the other end of the upper trigger lever 3 is provided with an upper impact point 302; a first rotation center 301 is provided between the upper impact point 302 of the upper trigger lever 3 and the transmission assembly 4; one end of the upper trigger lever 3 rotates around a first rotating shaft, causing the upper trigger lever to rotate around the first rotating shaft to form the first rotation center 301. That is to say, the upper impact point 302 and the transmission assembly 4 are connected on both sides of the upper first rotation center 301.

[0088] The upper lifting swing arm 31 is provided with a second rotation center 311. The upper lifting swing arm 31 rotates around the second rotating shaft, so that the upper lifting swing arm 31 rotates around the second rotating shaft to form the second rotation center 311. The transmission component 4 and the upper transmission component 32 are arranged on both sides of the second rotation center 311.

[0089] In this embodiment, the use of the first spring 303 and the second spring 312 can be omitted, which facilitates the debugging of the equipment during installation.

[0090] In one embodiment, to improve the stability of the device, the upper trigger lever 3 is connected to a third spring 304 and a fourth spring 305. The third spring 304 and the fourth spring 305 exert opposite torques on the upper trigger lever 3, keeping the upper trigger lever 3 in balance. The third spring 304 and the fourth spring 305 are located on both sides of the upper trigger lever 3, thereby improving the stability of the upper trigger lever 3 and ensuring that it remains in a balanced position during normal operation of the car.

[0091] Example 4: Figure 5 As shown, this embodiment has a similar structure to that in embodiment 3, except that the upper trigger 33 is fixedly connected to the upper trigger lever 3, and the lower trigger 52 is fixedly connected to the lower lifting lever 5.

[0092] A buffer device 7 is provided on the upper car 1 and the lower car 2 to abut against the lower trigger 52 and the upper trigger 33. The buffer device 7 includes a buffer cavity 71, a buffer rod 72, and a buffer elastic element 73, which is a spring. One end of the buffer rod 72 is provided with a buffer head 721 that slides within the buffer cavity 71, and the buffer elastic element 73 abuts between the buffer head 721 and the bottom of the buffer cavity 71. The end of the buffer rod 72 away from the buffer head 721 is provided with an abutment groove 722, which facilitates the upper trigger 33 and the lower trigger 52 to abut against each other in the event of a collision.

[0093] When the upper car 1 and the lower car 2 collide, the upper trigger 33 and the lower trigger 52 can abut against the end of the buffer rod 72 (abutment groove 722), so that the buffer head 721 overcomes the elastic force of the buffer elastic member 73 and moves in the buffer cavity 71, thus playing a buffering role.

[0094] In addition, the buffer rod 72 is foldable. When the car is being inspected, the buffer rod 72 can be folded 90 degrees to prevent the upper trigger lever 3 and the lower pull lever 5 from being accidentally triggered during maintenance.

[0095] Example 5: Figure 6 As shown, this embodiment has a similar structure to that in embodiment 4. A weight 8 is suspended from the end of the upper trigger member 33, and the weight 8 is connected by a suspension rope 81. A first spring 303 is provided on the upper trigger swing rod 3; the upper trigger swing rod 3 remains in balance under the action of the first spring 303, the gravity of the weight 8, and the tension of the transmission rope 41.

[0096] When the weight 8 abuts against the lower car 2, the distance between the weight 8 and the lower trigger 52 is a buffer distance, so that when the lower car 2 hits the lower trigger 52, it first hits the weight 8, which plays a buffering role.

[0097] In one embodiment, the suspension rope 81 can be an elastic rope made of rubber. During the impact, as the weight rises, the elasticity of the rope gradually decreases, causing the lower trigger lever 3 to rotate gradually. This prevents excessive acceleration from the sudden impact from damaging the rope 41 and provides a good buffering effect.

[0098] Example 6: Refer to Figures 1 to 6 As shown, this embodiment is similar in structure to Embodiments 1, 2, 3, 4, and 5, except that one of the upper car 1 and the lower car 2 is equipped with a collision plate 82, and the other is equipped with a buffer 83; the upper trigger 33 and the lower trigger 52 are triggered before the buffer 83. The buffer 83 is in the shape of a long rod.

[0099] This means that when the two cars are about to make contact, the buffer 83 strikes the pillar plate, serving as a buffer in the final stage of the impact.

[0100] Example 7: Refer to Figures 1 to 6 As shown, this embodiment is similar in structure to that in Embodiments 1, 2, 3, 4, and 5. The difference is that the upper trigger 33, the lower trigger 52, and the buffer rod 72 are all telescopic rods. By adjusting the length of the upper trigger 33 and the lower trigger 52, the trigger position during impact can be adjusted.

[0101] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Other variations and modifications may be made without departing from the technical solutions described in the claims.

Claims

1. A twin elevator anti-collision trigger device, the twin elevator including an upper car and a lower car, characterized by, The twin elevator anti-collision triggering device comprises: an upper triggering swing lever and an upper lifting swing lever are arranged on the upper car, and the upper triggering swing lever and the upper lifting swing lever rotate around respective rotation centers; the upper lifting swing lever is connected with the upper triggering swing lever through a transmission assembly; the upper lifting swing lever is connected with the safety gear of the upper car through an upper transmission member; a lower lifting swing lever is arranged on the lower car, and the lower lifting swing lever rotates around its rotation center; the lower lifting swing lever is connected with the safety gear of the lower car through a lower transmission member; an upper triggering member for triggering the upper car to brake and a lower triggering member for triggering the lower car to brake.

2. The twin elevator anti-collision trigger device according to claim 1, wherein One end of the upper triggering swing lever is provided with a first rotation center, and the other end of the upper triggering swing lever is provided with an upper impact point and connected with the transmission assembly; The upper lifting swing lever is provided with a second rotation center, and the transmission assembly and the upper transmission member are arranged on the same side of the second rotation center.

3. The twin elevator anti-collision trigger device of claim 2, wherein, The upper triggering swing lever is connected with a first spring, the torque of the first spring on the upper triggering swing lever is opposite to the torque of the transmission assembly on the upper triggering swing lever, and the upper triggering lever is kept in balance; The upper lifting swing lever is connected with a second spring, the torque of the second spring on the upper lifting swing lever is opposite to the torque of the transmission assembly on the upper lifting swing lever, and the upper lifting swing lever is kept in balance.

4. The twin elevator anti-collision trigger device of claim 1, wherein, One end of the upper triggering swing lever is connected with the transmission assembly, and the other end of the upper triggering swing lever is provided with an upper impact point; a first rotation center is arranged between the upper impact point of the upper triggering swing lever and the transmission assembly; The upper lifting swing lever is provided with a second rotation center, and the transmission assembly and the upper transmission member are arranged on the two sides of the second rotation center.

5. The twin elevator anti-collision trigger device of claim 4, wherein, The upper triggering swing lever is connected with a third spring and a fourth spring, the torques of the third spring and the fourth spring on the upper triggering swing lever are opposite, and the upper triggering swing lever is kept in balance.

6. The collision avoidance triggering device for double elevator cars according to any one of claims 1 to 5, characterized in that The transmission assembly comprises a transmission rope and a rope sleeve arranged outside the transmission rope; the two ends of the transmission rope are connected with the upper triggering swing lever and the upper lifting swing lever respectively.

7. The twin elevator anti-collision trigger device according to claim 2 or 3, wherein The upper triggering member and the lower triggering member are long rods; the upper triggering member is arranged on the top of the lower car; and the lower triggering member is arranged on the top of the upper car.

8. The twin elevator anti-collision trigger device according to claim 4 or 5, wherein The upper triggering member and the lower triggering member are long rods; the upper triggering member is fixedly connected with the upper triggering swing lever; and the lower triggering member is fixedly connected with the lower lifting swing lever.

9. The twin elevator anti-collision trigger device of claim 8, wherein, The upper car and the lower car are provided with a buffer device abutting against the lower triggering member and the upper triggering member; the buffer device comprises a buffer cavity, a buffer rod and a buffer elastic member; one end of the buffer rod is provided with a buffer head sliding in the buffer cavity, and the buffer elastic member abuts between the buffer head and the bottom of the buffer cavity.

10. The twin elevator anti-collision trigger device according to any one of claims 1 to 5, characterized in that, One of the upper car and the lower car is provided with a striking plate, and the other is provided with a buffer; the upper triggering member and the lower triggering member are triggered earlier than the buffer.

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