Elevator guide device and traction system

Abstract

The invention discloses an elevator guiding device and a traction system.The elevator guiding device comprises a supporting component, a guiding component, a driving component, a lifting component and a buffering component, the guiding component is provided with a plurality of sets of guide wheels matched with guide rails to achieve car guiding, and the driving component triggers the buffering component and pushes a push rod to make rollers make contact with a buffer when an elevator is overspeed; and the lifting part is connected with the safety tongs at the upper end of the lift car through the steel wire rope, and linkage braking is achieved. The buffer adopts a spring reset structure and is supplemented with a composite structure of rubber and metal, so that impact is effectively absorbed. A plurality of groups of guide devices in the traction system are symmetrically mounted at four corners of a lift car and are matched with double-wedge progressive safety tongs to realize emergency braking. The safety and buffering performance of elevator operation can be improved, and rope breaking and falling accidents are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator guiding devices, and particularly relates to an elevator guiding device and a traction system. Background Art

[0002] An elevator is a common vertical transportation tool and is widely used in various buildings. The main components of an elevator include a car, a counterweight, a traction machine, a traction steel wire rope, a guide pulley, a deflector pulley, a speed limiter, an electrical control cabinet, an operating device, a leveling device, a position display device, a car door, a landing door, a door operator, a linkage mechanism, a door lock, etc. Among them, the car is the load component of the elevator, the traction machine is the power source of the elevator, the traction steel wire rope is the transmission component of the elevator, the guide pulley and the deflector pulley are the traction auxiliary components of the elevator, the speed limiter is the safety protection component of the elevator, the electrical control cabinet is the control component of the elevator, the operating device, the leveling device, and the position display device are the operating and display components of the elevator, and the car door, the landing door, the door operator, the linkage mechanism, and the door lock are the door system components of the elevator.

[0003] During the operation of the elevator, the car moves up and down along the guide rail under the traction of the traction steel wire rope. The guide rail is the guiding component of the elevator, and its function is to ensure the vertical movement of the car, prevent the deviation and swing of the car, and improve the running stability of the elevator. In order to achieve effective guiding of the car, an elevator usually adopts a guiding device. The guiding device is a device installed at the four corners of the car, which includes a guide wheel and a guide rail. The guide wheel is a rolling component installed on the guiding device, and the guide rail is a rigid component fixed on the wall surface of the elevator shaft. A rolling fit is formed between the guide wheel and the guide rail, and the guide wheel rolls along the guide rail to achieve guiding of the car. However, there are still unexpected situations such as falling and overshooting when taking an elevator. For example, when the steel wire rope fails and the elevator falls, the traditional method is to lock the guide rail by a caliper to generate friction to achieve braking and stopping of the car. The caliper undertakes the conversion of the kinetic energy of the car, and a large amount of heat and sparks generated during its braking due to the friction effect are likely to cause a fire, and the braking effect is reduced after the caliper overheats, and there is a risk of secondary accidents.

[0004] Therefore, it is urgent to design an elevator guiding device and a traction system that can buffer and decelerate a high-speed moving car when the elevator is out of control to meet the requirements of modern elevator safety protection. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies existing in the prior art, and provide an elevator guiding device and a traction system that can stably guide and effectively buffer the car, realize emergency braking and protection of the car, and avoid the danger of the car falling due to a broken rope.

[0006] The technical solution adopted by the present invention to solve the above problems is: an elevator guiding device and a traction system, including a device main body, the device main body includes a support component, a guiding component, a driving component and a lifting component, the support component combines and assembles the guiding component, the driving component and the lifting component into one body, the guiding component is fixed to the wall surface of the elevator shaft, the device main body further includes a buffer component, the driving component is used to trigger the buffer component to decelerate the car when the elevator overspeed, and the lifting component is connected to the safety tongs at the upper end of the car through a steel wire rope.

[0007] Preferably: the guiding component includes a guide rail, the guide rail is provided with three sets of convex edges, the middle convex edge is rollingly matched with a first guide wheel, and the convex edges on both sides are respectively rollingly matched with a second guide wheel and a third guide wheel, and the rotating shafts of the first guide wheel, the second guide wheel and the third guide wheel are fixed to the support component of the device main body.

[0008] Preferably: the guide rail is provided with a first groove and a second groove, and buffer components are arranged in both the first groove and the second groove, the buffer components include buffers vertically distributed on the side walls of the first groove and the second groove, the buffers are arranged in pairs along the side walls of the first groove and the second groove, the buffer is a hollow structure, and a return spring is arranged inside it, one end of the return spring is fixed inside the guide rail, so that the buffer slides into the guide rail when acted on by the driving component, and can return to the initial state through the return spring when not stressed. When in the initial state, a part of the buffer remains in the chute and does not protrude.

[0009] Preferably: a compression spring is connected between two adjacent buffers up and down, a steel wire rope passes through the buffer at a position away from the side wall of the groove, the upper and lower ends of the steel wire rope are connected with stoppers, the stoppers are fixed at positions near the upper and lower elevator landing doors on the guide rail, and a compression spring is also connected between the stopper and the buffer. The stopper is provided with a notch, the width of the notch is greater than the width of the push rod, the notch of the stopper in the first groove is arranged downward, the notch of the stopper in the second groove is arranged upward, the inclined surface of the buffer in the first groove faces downward, and the inclined surface of the buffer in the second groove faces upward.

[0010] Preferably: the buffer includes an inner layer and an outer layer, the inner layer is made of stainless steel, the outer layer is made of elastic rubber, and the inner layer and the outer layer are combined by hot vulcanization bonding.

[0011] Preferably, the driving component is triggered by a first guide wheel. The first guide wheel serves both as a part of the guiding component and as an acting component of the triggering component. A plurality of pawls are circumferentially hinged to the side of the first guide wheel. A tension spring is connected to the ratchet away from the rotation center of the first guide wheel, and one end of the tension spring is connected to the hinge point. The first guide wheel rolls and fits against the convex edge in the middle of the guide rail. When the car overspeed, the rotation speed of the first guide wheel increases. The pawl swings outward against the tension of the tension spring. The ratchet is rotatably arranged on the supporting component of the device body. After the pawl swings, the end of the pawl meshes with the ratchet teeth of the ratchet, causing the ratchet to rotate. A cam is coaxially arranged with the ratchet. The cam rotates synchronously with the ratchet. The far rest position of the cam pushes the guide rod. The guide rod slides along the guide groove of the supporting component and finally slides into the notch for locking. The guide rod is hinged with a push rod. The push rod is slidably arranged on the supporting component of the device body. During the sliding process of the guide rod, the push rod extends. When the guide rod is locked, the push rod extends to the farthest position. A roller is arranged at the end of the push rod. The roller is pushed out by the push rod and contacts the guide rod of the buffer component when the elevator overspeed.

[0012] Preferably, the lifting component includes guard plates clamped on both sides of the first guide wheel. The guard plates are fixed to the supporting component of the device body by bolts. A suspension ring is hinged above the guard plates. A steel wire rope is tied to the suspension ring. One end of the steel wire rope is fixedly connected to the rope clamping plate of the safety gear installed on the car frame.

[0013] Preferably, the supporting component is composed of several angle steels and steel plates connected by bolts. One side of it is fixed to the elevator car. A dust-proof cover is also fixedly arranged at the connection part between the supporting component and the car. The dust-proof cover includes a first partition board and a second partition board. Notches are opened above the first partition board and the second partition board. A passage for the steel wire rope to pass through is formed between the two notches after the first partition board and the second partition board are spliced.

[0014] An elevator traction system includes eight groups of the above elevator guiding devices. Each group of elevator guiding devices is symmetrically installed on both sides of the car. Four groups are symmetrically arranged in the up-down, left-right directions on the side to achieve stable guiding and effective buffering of the car. The lifting component is connected to the safety gear at the upper end of the car through a steel wire rope to achieve emergency braking and protection of the car. The safety gear is a double-wedge progressive safety gear, which can automatically clamp the guide rail when the elevator overspeed or breaks the rope, so that the car decelerates and stops. The elevator traction system also includes

[0015] Power source: An elevator machine is adopted;

[0016] Traction auxiliary components: including a guide wheel and a deflector pulley;

[0017] Safety protection component: A speed limiter is adopted;

[0018] Control component: An electric control cabinet is adopted;

[0019] Manipulating and display components: including a manipulating device, a leveling device, and a position display device;

[0020] Door system components: including a car door, a landing door, a door operator, a linkage mechanism, and a door lock.

[0021] Compared with the prior art, the present invention has the following advantages and effects:

[0022] The elevator guiding device of the present invention has a buffer component, which can trigger a buffer when the elevator runs at an excessive speed, decelerate the car, and contact the buffer of the buffer component through a push rod and a roller to form a secondary buffer, further reducing the impact force of the car and protecting the safety of the car and passengers. The present invention also adopts multiple groups of elevator guiding devices, which are symmetrically arranged on the non-opening opposite sides of the elevator car respectively. Among them, four groups of guiding devices above are fixed at the bottom of the car, and four groups of guiding devices below are fixed on the car frame at the bottom of the elevator. The guiding devices on both sides are also symmetrically distributed, so that the first guide wheels and the second guide wheels of the four groups of guiding devices on one side are symmetrically arranged (the first guide wheels face outwards and the second guide wheels face inwards), which can effectively improve the running stability and safety of the elevator, reduce the vibration and offset of the car and the counterweight, and improve the comfort of passengers.

[0023] The elevator guiding device also has a lifting component, which can be connected to the safety clamp at the upper end of the car through a steel wire rope to realize the emergency braking and protection of the car, avoid the danger of the car falling due to broken ropes, and improve the reliability of the elevator. At the same time, the safety clamp adopted by the present invention is a double-wedge progressive safety clamp, which can automatically clamp the guide rail when the elevator runs at an excessive speed or the rope breaks, decelerate and stop the car, and has the advantages of large braking force, short braking distance, stable braking, and no damage to the guide rail. The elevator guiding device and the traction system of the present invention are combined with the conventional system of the elevator to form a complete elevator system, which can meet the requirements of the normal operation and control of the elevator and the needs of modern elevator safety guarantee. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of the elevator guiding device according to Embodiment 1 of the present invention.

[0025] Figure 2 is a top view of the elevator guiding device according to Embodiment 1 of the present invention.

[0026] Figure 3 is a partial schematic structural diagram of the elevator guiding device according to Embodiment 1 of the present invention.

[0027] Figure 4 is a schematic structural diagram of the driving component of the elevator guiding device according to Embodiment 1 of the present invention.

[0028] Figure 5It is a schematic structural diagram of the guiding component of the elevator guiding device in Embodiment 1 of the present invention.

[0029] Figure 6 It is a partially enlarged view of the buffer component of the elevator guiding device in Embodiment 1 of the present invention.

[0030] Figure 7 and Figure 8 It is a schematic structural diagram of the safety tongs of the elevator guiding device in Embodiment 1 of the present invention.

[0031] Figure 9 It is an installation schematic diagram of the dust-proof cover housing in Embodiment 1 of the present invention.

[0032] Figure 10 It is an arrangement schematic diagram of 8 groups of elevator guiding devices at the car in Embodiment 2 of the present invention.

[0033] Figure 11 It is a schematic diagram of the overall framework of the elevator traction system in Embodiment 2 of the present invention.

[0034] Reference numerals of the drawings: device main body 1, support component 2, guide groove 21, notch 22, angle steel 23, steel plate 24, guiding component 3, guide rail 31, convex edge 311, first groove 312, second groove 313, first guide wheel 32, second guide wheel 33, third guide wheel 34, driving component 4, ratchet pawl 41, tension spring 42, ratchet wheel 43, cam 44, guide rod 45, push rod 46, roller 47, lifting component 5, guard plate 51, lifting ring 52, buffer component 6, buffer 61, return spring 611, inner layer 612, outer layer 613, inclined surface 614, compression spring 62, stop block 63, notch 631, safety tongs 7, fixed wedge block 71, tong body 72, U-shaped leaf spring 73, nut 74, double-headed screw 75, guide plate 76, moving slider 77, roller row 78, dust-proof cover housing 8, first partition plate 81, second partition plate 82, notch 83, steel wire rope 9, car 10. Detailed implementation manners

[0035] The present invention will be further described in detail below with reference to the drawings and through embodiments. The following embodiments are explanations of the present invention and the present invention is not limited to the following embodiments.

[0036] Embodiment 1:

[0037] See Figure 1 - Figure 9, the guiding device includes a device main body 1, and the device main body 1 includes a supporting component 2, a guiding component 3, a driving component 4 and a lifting component 5. The supporting component 2 assembles the guiding component 3, the driving component 4 and the lifting component 5 into one body. The guiding component 3 is fixed to the wall surface of the elevator shaft. The device main body 1 further includes a buffer component 6. The driving component 4 is used to trigger the buffer component 6 to decelerate the car 10 when the elevator overspeed. The lifting component 5 is connected to the safety clamp 7 at the upper end of the car 10 through a steel wire rope 9.

[0038] In this embodiment, the device main body 1 is fixed on the car 10 through the supporting component 2. The guiding component 3 enables the guiding device to move up and down along it without falling off. The traction machine pulls through the steel wire rope 9, and the car 10 can move up and down under the action of the guiding device. A buffer component 6 is arranged in the guiding component 3. When the elevator car 10 overspeed, the buffer component 6 is activated through the triggering structure in the guiding device. The buffer component 6 performs a buffering action to decelerate the car 10. The guiding device further includes a lifting component 5. The lifting component 5 is connected to the safety clamp 7 through the steel wire rope 9. When the traction steel wire rope 9 of the elevator car 10 breaks, the speed limiter is triggered and at the same time the safety clamp 7 clamps the guide rail 31. At this time, the buffering action of the guiding component 3 is continuously triggered. Under the combined action of the clamping of the safety clamp 7 and the buffering of the guiding component 3, the car 10 can stop safely in the shaft, avoiding the danger of the car 10 falling and ensuring the safety of passengers' lives.

[0039] The guiding component 3 includes a guide rail 31. The guide rail 31 is provided with three groups of convex edges 311. The middle convex edge 311 is rollingly fitted with a first guide wheel 32, and the convex edges 311 on both sides are respectively rollingly fitted with a second guide wheel 33 and a third guide wheel 34. The rotating shafts of the first guide wheel 32, the second guide wheel 33 and the third guide wheel 34 are fixed to the supporting component 2 of the device main body 1. The guide rail 31 is provided with a first groove 312 and a second groove 313. Buffer components 6 are arranged in both the first groove 312 and the second groove 313. The buffer component 6 includes buffers 61 vertically distributed on the side walls of the first groove 312 and the second groove 313. The buffers 61 are arranged in pairs along the side walls of the first groove 312 and the second groove 313. The buffer 61 is a hollow structure, and a return spring 611 is arranged inside it. One end of the return spring 611 is fixed inside the guide rail 31, so that the buffer 61 slides into the guide rail 31 under the action of the driving component 4 and can return to the initial state through the return spring 611 when not stressed. In the initial state, a part of the buffer 61 remains in the chute and does not protrude.

[0040] In this embodiment, a compression spring 62 is connected between two adjacent buffers 61 arranged vertically. A wire rope 9 passes through the buffer 61 at a position away from the side wall of the groove. The upper and lower ends of the wire rope 9 are connected with stoppers 63. The stoppers 63 are fixed at positions near the upper and lower parts of the elevator landing door on the guide rail 31. A compression spring 62 is also connected between the stopper 63 and the buffer 61. The stopper 63 is provided with a notch 631, and the width of the notch 631 is greater than the width of the push rod 46. The notch 631 of the stopper 63 in the first groove 312 is arranged downward, and the notch 631 of the stopper 63 in the second groove 313 is arranged upward. The inclined surface of the buffer 61 in the first groove 312 faces downward, and the inclined surface of the buffer 61 in the second groove 313 faces upward, so that the notch 631 of the stopper 63 corresponds to the inclined surface of the buffer 61 respectively.

[0041] The buffer 61 includes an inner layer 612 and an outer layer 613. The inner layer 612 is made of stainless steel, and the outer layer 613 is made of elastic rubber. The inner layer 612 and the outer layer 613 are combined by hot vulcanization bonding. The outer layer 613 is made of an elastic material, so that when it collides with the stopper 63, it can produce buffering to reduce the wear of the stopper 63, and it can still maintain the buffering effect until the car 10 completely stops when it collides with other buffers 61. The inner layer 612 made of stainless steel can improve the service life and avoid the failure of the buffer 61 due to corrosion.

[0042] The driving component 4 is triggered by the first guide wheel 32. The first guide wheel 32 serves as both a part of the guiding component 3 and a functional component of the triggering component. A plurality of sets of pawls 41 are circumferentially hinged to the side of the first guide wheel 32. A tension spring 42 is connected between the pawl 41 and the ratchet wheel 43 away from the rotation center of the first guide wheel 32. One end of the tension spring 42 is connected at the hinge point. The first guide wheel 32 rolls and fits on the convex edge 311 in the middle of the guide rail 31. When the car 10 overspeed, the rotation speed of the first guide wheel 32 increases. The pawl 41 swings outward against the tension of the tension spring 42. The ratchet wheel 43 is rotatably arranged on the supporting component 2 of the device main body 1. After the pawl 41 swings, the end of it meshes with the ratchet teeth of the ratchet wheel 43, so that the ratchet wheel 43 rotates. A cam 44 is coaxially arranged with the ratchet wheel 43. The cam 44 rotates synchronously with the ratchet wheel 43. The far rest position of the cam 44 pushes the buffer 61. The buffer 61 slides along the guide groove 21 of the supporting component 2 and finally slides into the notch 22 to be locked. The buffer 61 is hinged with a push rod 46. The push rod 46 is slidably arranged on the supporting component 2 of the device main body 1. When the buffer 61 slides, the push rod 46 extends. When the buffer 61 is locked, the push rod 46 extends to the farthest position. A roller 47 is arranged at the end of the push rod 46. The roller 47 is pushed out by the push rod 46 and contacts the buffer 61 of the buffering component 6.

[0043] The lifting component 5 described above includes guard plates 51 clamped on both sides of the first guide pulley 32. The guard plates 51 are fixed to the support component 2 of the device main body 1 by bolts. A suspension ring 52 is hinged above the guard plates 51. A steel wire rope 9 is tied to the suspension ring 52. One end of the steel wire rope 9 is fixedly connected to the rope clamping plate of the safety tongs 7 installed on the car 10 frame.

[0044] In this embodiment, the safety tongs 7 are double-wedge progressive safety tongs 7. The double-wedge progressive safety tongs 7 include components such as a moving slider 77, a fixed wedge 71, a U-shaped leaf spring, a roller row 78, and a baffle. There is an opening groove on the top plate of the tong body 72 of the safety tongs 7. A set of moving sliders 77 are symmetrically installed on both sides of the opening groove. The fixed wedge 71 has no displacement in the vertical direction and can slide along the opening groove in the horizontal direction. When the elevator has overspeed or rope breakage and the speed reaches the action speed set by the speed limiter, the speed limiter is triggered to act. The moving slider 77 slides upward along the guide plate 76, causing the working surfaces of the moving slider 77 and the fixed wedge 71 to be squeezed, generating a clamping force on the guide rail 31. The moving slider 77 contacts the guide rail 31 and generates frictional force, decelerating and stopping the car 10. The U-shaped leaf spring is used to reset the moving slider 77.

[0045] In this embodiment, the support component 2 is used to fix and support the drive component 4. It is composed of several angle steels 23 and steel plates 24 connected by bolts. One side of it is fixed on the car 10 of the elevator. A dust-proof cover 8 is also fixedly arranged at the connection part between the support component 2 and the car 10. The dust-proof cover 8 includes a first partition plate 81 and a second partition plate 82. Notches 83 are provided above the first partition plate 81 and the second partition plate 82. A channel for the steel wire rope 9 to pass through is formed between the two notches 83 after the first partition plate 81 and the second partition plate 82 are spliced. The dust-proof cover 8 covers the outside of the drive component 4, which can effectively reduce the wear of its internal components caused by the intrusion of dust and other impurities, thereby affecting the service life of the drive component 4.

[0046] Embodiment 2:

[0047] See Figure 10 and Figure 11 , this embodiment also relates to an elevator traction system, which includes eight sets of the elevator guiding devices described in Embodiment 1. Each set of elevator guiding devices is symmetrically installed on both sides of the car 10. Four sets are symmetrically arranged up, down, left, and right on the side to achieve stable guiding and effective buffering of the car 10. The lifting component 5 is connected to the safety tongs 7 at the upper end of the car 10 through the steel wire rope 9 to achieve emergency braking and protection of the car 10. The safety tongs 7 are double-wedge progressive safety tongs 7, which can automatically clamp the guide rail 31 when the elevator has overspeed or rope breakage, decelerating and stopping the car 10. The elevator traction system also includes

[0048] Power source: An elevator traction machine is adopted;

[0049] Traction auxiliary components: including a guide pulley and a deflecting sheave;

[0050] Safety protection components: using a speed governor;

[0051] Control components: using an electrical control cabinet;

[0052] Operation and display components: including an operating device, a leveling device, and a position display device;

[0053] Door system components: including a car door, a landing door, a door operator, a linkage mechanism, and a door lock.

[0054] The above structures all adopt the conventional technologies of existing traction elevators. The working principle of the traction system of this elevator is as follows:

[0055] When the elevator is running normally, the car 10 and the counterweight move up and down along the guide rail 31 under the traction of the hoisting rope 9. A rolling fit is formed between the guide pulley and the guide rail 31 to realize the guiding of the car 10 and the counterweight. At this time, the buffer 61 is in the initial state, the push rod 46 is in the retracted state and does not contact the buffer 61 of the buffer component 6. The pawl 41 is in the retracted state and disengages from the ratchet teeth of the ratchet wheel 43. The cam 44 is in the stationary state and does not contact the buffer 61. The hoisting rope 9 is in the slack state and does not contact the rope gripper of the safety tongs 7.

[0056] When the elevator overspeed (including overshooting the top or falling), the speed governor detects that the speed of the car 10 exceeds the set value and triggers the speed governor to act. The speed governor pulls the moving slider 77 of the safety tongs 7 upward through the hoisting rope 9, so that the working surfaces of the moving slider 77 and the fixed wedge 71 are squeezed, and the generated acting force clamps the guide rail 31. The moving slider 77 contacts the guide rail 31 and generates frictional force, so that the car 10 decelerates and stops. At the same time, the rotational speed of the first guide pulley 32 increases, the pawl 41 swings outward against the tension of the tension spring 42, and the end of the pawl 41 meshes with the ratchet teeth of the ratchet wheel 43, so that the ratchet wheel 43 rotates, and the cam 44 coaxial with the ratchet wheel 43 also rotates accordingly. The far rest position of the cam 44 pushes the buffer 61, and the buffer 61 slides along the guide groove 21 of the support component 2 and finally slides into the notch 22 to be locked. The push rod 46 hinged to the buffer 61 also extends accordingly, and the roller 47 at the end of the push rod 46 is pushed out by the push rod 46 and contacts the buffer 61 of the buffer component 6 to form a secondary buffer, further reducing the impact force of the car 10 and protecting the safety of the car 10 and passengers.

[0057] When the elevator rope breaks, the traction steel wire rope 9 breaks, and the car 10 loses traction and begins to free fall. At this time, the steel wire rope 9 is tightened and contacts the rope clamping plate of the safety gear 7, causing the moving slider 77 of the safety gear 7 to slide upward, so that the working surfaces of the moving slider 77 and the fixed wedge 71 are squeezed, and the generated acting force clamps the guide rail 31. The moving slider 77 contacts the guide rail 31 and generates friction force, so that the car 10 decelerates and stops. At the same time, the rotation speed of the first guide wheel 32 increases, the pawl 41 swings outward against the pulling force of the tension spring 42, and the end of the pawl 41 meshes with the ratchet teeth of the ratchet wheel 43, causing the ratchet wheel 43 to rotate. The cam 44 coaxial with the ratchet wheel 43 also rotates accordingly. The far rest position of the cam 44 pushes the buffer 61, and the buffer 61 slides along the guide groove 21 of the support member 2 and finally slides into the notch 22 to be locked. The push rod 46 hinged to the buffer 61 also extends accordingly. The roller 47 at the end of the push rod 46 is pushed out by the push rod 46 and contacts the buffer 61 of the buffer member 6 to form a secondary buffer, further reducing the impact force of the car 10 and protecting the safety of the car 10 and passengers.

[0058] The above content described in this specification is only an example of the present invention. Those skilled in the technical field to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, as long as they do not deviate from the content of this specification of the present invention or exceed the scope defined by this claim book, they should fall within the protection scope of the present invention.

Claims

1. An elevator guiding device, comprising a device main body, characterized in that: The described device body includes a support component, a guiding component, a driving component, and a lifting component. The support component assembles the guiding component, the driving component, and the lifting component into one body. The guiding component is fixed to the wall surface of the elevator shaft. The device body further includes a buffer component. The driving component is used to trigger the buffer component to decelerate the car when the elevator overspeed. The lifting component is connected to the safety clamp at the upper end of the car through a steel wire rope.

2. The elevator guiding device according to claim 1, characterized in that: The described guiding component includes a guide rail. The guide rail is provided with three groups of convex edges. The middle convex edge is rollingly fitted with a first guide wheel, and the convex edges on both sides are respectively rollingly fitted with a second guide wheel and a third guide wheel. The rotating shafts of the first guide wheel, the second guide wheel, and the third guide wheel are fixed to the support component of the device body.

3. An elevator guiding device according to claim 2, wherein: The guide rail is provided with a first groove and a second groove. Buffer components are arranged in both the first groove and the second groove. The buffer component includes buffers vertically distributed on the side walls of the first groove and the second groove. The buffers are arranged in pairs along the side walls of the first groove and the second groove. The buffer is a hollow structure, and a return spring is arranged inside it. One end of the return spring is fixed inside the guide rail, so that the buffer slides into the guide rail when affected by the driving component and can return to the initial state through the return spring when not affected. In the initial state, a part of the buffer remains in the chute without exposing.

4. An elevator guiding device according to claim 3, characterized in that: A compression spring is connected between two adjacent buffers up and down. A steel wire rope passes through the buffer at a position away from the side wall of the groove. Blocks are connected to the upper and lower ends of the steel wire rope. The blocks are fixed at positions near the upper and lower elevator landing doors on the guide rail. A compression spring is also connected between the block and the buffer. The block is provided with a notch, and the width of the notch is greater than the width of the push rod. The notch of the block in the first groove is arranged downward, and the notch of the block in the second groove is arranged upward. The inclined surface of the buffer in the first groove faces downward, and the inclined surface of the buffer in the second groove faces upward.

5. An elevator guiding device according to claim 4, characterized in that: The buffer includes an inner layer and an outer layer. The inner layer is made of stainless steel, and the outer layer is made of elastic rubber. The inner layer and the outer layer are combined by means of heat vulcanization bonding.

6. The elevator guiding device according to claim 2, characterized in that: The described driving component is triggered by the first guide wheel. The first guide wheel serves both as a part of the guiding component and as an acting component of the triggering component. A plurality of pawls are circumferentially hinged to the side of the first guide wheel. A tension spring is connected to the ratchet away from the rotation center of the first guide wheel. One end of the tension spring is connected to the hinge point. The first guide wheel rolls and fits against the convex edge in the middle of the guide rail. When the car overspeed, the rotation speed of the first guide wheel increases. The pawl swings outwards overcoming the tension of the tension spring. The ratchet is rotatably arranged on the supporting component of the device body. After the pawl swings, its end meshes with the ratchet teeth of the ratchet, causing the ratchet to rotate. A cam is coaxially arranged with the ratchet. The cam rotates synchronously with the ratchet. The far rest position of the cam pushes the guide rod. The guide rod slides along the guide groove of the supporting component and finally slides into the notch for locking. The guide rod is hinged with a push rod. The push rod is slidably arranged on the supporting component of the device body. During the sliding process of the guide rod, the push rod extends. When the guide rod is locked, the push rod extends to the farthest position. A roller is arranged at the end of the push rod. The roller is pushed out by the push rod and contacts the guide rod of the buffer component when the elevator overspeed.

7. A kind of elevator guiding device according to claim 1, characterized in that: The described lifting component includes guard plates clamped on both sides of the first guide wheel. The guard plates are fixed to the supporting component of the device body by bolts. A lifting ring is hinged above the guard plates. The lifting ring is tied with a steel wire rope. One end of the steel wire rope is fixedly connected to the rope clamping plate of the safety tongs installed on the car frame.

8. A kind of elevator guiding device according to claim 1, characterized in that: The described supporting component is composed of several angle steels and steel plates connected by bolts. One side of it is fixed on the elevator car. A dust-proof cover shell is also fixedly arranged at the connection part between the supporting component and the car. The dust-proof cover shell includes a first partition plate and a second partition plate. Notches are opened above the first partition plate and the second partition plate. A channel for the steel wire rope to pass through is formed between the two notches after the first partition plate and the second partition plate are spliced.

9. An elevator traction system, characterized in that: Including eight sets of the elevator guiding device according to any one of claims 1-8. Each set of the elevator guiding device is symmetrically installed on both side parts of the car. Four sets are symmetrically arranged in the up-down, left-right directions on the side parts. It is characterized in that it further includes Power source: An elevator traction machine is adopted; Traction auxiliary components: including a guide wheel and a compensating sheave; Safety protection components: A speed limiter is adopted; Control components: An electric control cabinet is adopted; Operation and display components: including an operating device, a leveling device and a position display device; Door system components: including a car door, a landing door, a door operator, a linkage mechanism and a door lock.

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