CN213679341U - Quick braking device of household elevator without pit - Google Patents

Abstract

The application discloses a rapid braking device of a household elevator without a pit, which can detect whether the elevator is broken through the movement of a rope blocking wheel and a first connecting rod, when a mooring rope of the elevator is broken, the rope blocking wheel and the first connecting rod rotate to a triggering position and trigger a safety clamp assembly to switch states, the safety clamp assembly locks guide rails on two sides of a car, the car can stop moving on the guide rails, in the process, the safety clamp assembly adopts an eccentric wheel to brake, the eccentric wheel does not need to move, the first state and the second state can be converted only through rotation, the braking time is reduced, the braking distance is shortened, accidents and damages caused by sudden falling of passengers in the car and the car due to the broken mooring rope are avoided, the state after the elevator is broken, and the injury degree of the passengers in the car is greatly reduced, meanwhile, the stability and the safety of the elevator are also improved.

Description

Quick braking device of household elevator without pit

Technical Field

The utility model relates to a no pit home use elevator technical field especially relates to no pit home use elevator's quick arresting gear.

Background

With the continuous improvement of economic level and the continuous promotion of urbanization and urbanization, the residential form of people develops towards the trend of high-rise buildings and villas. In the construction process of high-rise buildings, elevator shafts can be designed independently, most of the elevators adopt traction type elevators, the elevator shafts have relatively perfect and independent control and operation systems, and the development and application of related technologies are relatively mature; in the low-rise buildings such as villas, the floor height of the villas is generally designed into two or three layers, elevators cannot be designed in most villas, and the whole set of traction type elevators is complex in structure and needs to be provided with a hoistway, so that a large space is occupied, the elevator cannot be installed in most villas in consideration of the problem of space occupation and the cost of the traction type elevators, but in recent years, along with the increase of the aging problem of the population of China, the old people living in the villas and going upstairs and downstairs by stairs are inconvenient, and potential safety hazards exist, so that the market demand for small-sized bottomless household elevators is more and more urgent.

In the prior art, small and medium-sized domestic elevators without pits are generally provided with a vertical guide rail without a shaft between floors, and a driving device of the domestic elevator without pits moves along with a car of the domestic elevator without pits. Specifically, a motor is used for driving a winding drum to wind and unwind two mooring ropes wound on two pulleys to realize the lifting of the household elevator without the pit.

In the use of no pit home use elevator, the unexpected condition of hawser disconnection can take place sometimes, at this moment just need arresting gear to carry out effective, timely braking to the car, usually react to the difference of atress behind the hawser fracture through a structure, thereby trigger safety tongs and brake the car, but safety tongs among the prior art adopts the gyro wheel extrusion formula usually, trigger safety tongs promptly and make the gyro wheel upwards walk a section distance so that extrude the guide rail, make the car stop, but because the gyro wheel will go up a section distance of walking, therefore the time of this section distance of walking of gyro wheel used has increased the braking time of safety tongs, braking distance also lengthens along with it, and the braking distance overlength of no pit home use elevator in the low-rise building can lead to the security greatly reduced of elevator.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing a quick arresting gear of no pit home use elevator, this quick arresting gear can detect whether the elevator is disconnected the rope through the motion of keeping off rope sheave and first connecting rod, safety tongs subassembly adopts the eccentric wheel to brake simultaneously, the eccentric wheel need not to remove, only need rotate and can accomplish the conversion of first state and second state, braking time reduces to some extent, braking distance shortens thereupon, avoid the car, passenger in the car leads to accident and damage because of the hawser fracture suddenly tenesmus, state after the elevator is disconnected restricts has been protected, greatly reduced the injury degree to the inside passenger of car, the while has also increased the stationarity and the security of elevator.

In order to achieve the purpose, the utility model provides a quick arresting gear of no pit home use elevator, including drive assembly, drive assembly sets up in the car top, drive assembly includes driving piece, two switching-over pulleys, reel and the hawser of coiling on the reel, the drive shaft of driving piece and reel link to each other in order to drive the reel rotates, the reel links to each other with the bottom of two hawsers, the hawser is upwards extended after being shifted by the switching-over pulley, the top of hawser is fixed to be set up in the top position of car, the reel rotates in order to draw in or release the hawser, makes the car go up or down along the hawser; the two rope blocking wheel assemblies comprise two first connecting rods and rope blocking wheels, one ends of the first connecting rods are rotatably provided with the rope blocking wheels, the other ends of the first connecting rods are hinged to the top of the lift car, the cable extends upwards after reversing from the reversing pulley and is abutted against the rope blocking wheels, and the cable can apply force to the first connecting rods through the rope blocking wheels so that the first connecting rods rotate to a working position or a triggering position; the two safety gear assemblies are respectively arranged below the two rope stopping wheel assemblies and are positioned at the upper half part of the lift car; the safety gear assembly comprises an eccentric wheel, and the eccentric wheel has a first state for stopping the movement of the cage and a second state for releasing the movement of the cage; when the first connecting rod is located at the working position, the safety clamp assembly is located at the second state; when the first connecting rod is located at the triggering position, the first connecting rod triggers the safety clamp assembly to enable the safety clamp assembly to be switched from the second state to the first state. The quick braking device can detect whether the elevator is broken through the movement of the rope blocking wheel and the first connecting rod, when the elevator is not broken and is in a normal working state, the rope blocking wheel and the first connecting rod are in working positions through a certain force given by the mooring rope, when the mooring rope of the elevator is broken, the rope blocking wheel abutted to the mooring rope does not bear the force of the mooring rope due to sudden loosening of the mooring rope, the rope blocking wheel and the first connecting rod rotate to a triggering position and trigger a safety clamp assembly to switch states, the safety clamp assembly locks guide rails on two sides of the car, the car can stop moving on the guide rails, in the process, the safety clamp assembly adopts an eccentric wheel to brake, the eccentric wheel does not need to move, the conversion between the first state and the second state can be completed only by rotating, the braking time is reduced, the braking distance is shortened therewith, accidents and damages caused by sudden falling of passengers in the car and the car due to the breakage of the mooring rope are avoided, the state after the elevator rope is broken is protected, the injury degree to passengers in the car is greatly reduced, and meanwhile the stability and the safety of the elevator are also improved.

In one example, the quick braking device further comprises a lifting assembly, one end of the lifting assembly is hinged with the first connecting rod, and the other end of the lifting assembly is hinged with the safety gear assembly. The lifting assembly is mainly used as an intermediate connecting structure for transmitting the movement of the first connecting rod to the safety gear assembly.

In one example, the safety gear assembly further comprises a base, the base is provided with a guide rail groove, the eccentric wheel is located on one side of the guide rail groove, and the eccentric wheel can rotate towards the direction gradually approaching the guide rail groove. When the safety tongs are not needed to brake, the eccentric wheel is positioned on one side of the guide rail groove and does not contact with the guide rail in the guide rail groove; when braking is required, the eccentric wheel rotates and comes gradually closer to the guide rail groove and finally comes into contact with the guide rail to brake the car.

In one example, the safety gear assembly further comprises a rotating rod, one end of the rotating rod is fixedly connected with the central shaft of the eccentric wheel, the other end of the rotating rod is connected with the lifting assembly, and the lifting assembly can drive the rotating rod to rotate so that the eccentric wheel rotates from the second state to the first state. The rotation of the eccentric wheel is realized through a rotating rod fixedly connected with a central shaft of the eccentric wheel, when the trigger part moves upwards, the rotating rod hinged with the trigger part is driven to rotate upwards, the eccentric wheel rotates along with the rotating rod towards the direction gradually close to the guide rail groove, and the guide rail is extruded to brake the lift car.

In one example, the safety gear assembly further comprises a connecting plate, the connecting plate is fixedly connected with the base, the connecting plate is provided with a through hole, and a central shaft of the eccentric wheel penetrates through the through hole and is fixedly connected with the rotating rod. The connecting plate is used for fixing the eccentric wheel and the rotating rod on the base, and meanwhile, the through hole in the connecting plate can allow the eccentric wheel to rotate along with the rotating rod.

In one example, the lifting assembly is hinged to the rotating rod, and the first connecting rod can drive the lifting assembly to move downwards, so as to drive the rotating rod to rotate upwards to enable the eccentric wheel to rotate and switch from the second state to the first state.

In one example, the eccentric is in the second state, the rotating rod is inclined downwardly by an angle of not more than 45 °. When need not the braking, the eccentric wheel is in the second state, and when dwang downward sloping angle was not more than 45, drive the dwang during the trigger lever upward movement more easily and upwards rotate, avoid producing the dwang because of the too big emergence that leads to unable pivoted condition of downward sloping angle.

In one example, the angle by which the swivelling levers are tilted downwards is 0 °. The angle of dwang downward sloping is 0, and the dwang is in the horizontality promptly, drives the dwang rotation during trigger piece upward movement more easily, and the dwang is the state of tilt up after the braking, and trigger piece and dwang are more stable.

In one example, the quick brake further comprises a reset member configured to impart a force to the first link to move toward the triggered position. The piece that resets can make first link rotate to the trigger position voluntarily upwards after the hawser fracture.

Drawings

The drawings described herein are intended only to assist those skilled in the art in understanding the technical solutions of the present invention, and the exemplary embodiments of the present invention described in conjunction with the drawings are intended only to explain the technical solutions of the present invention and do not constitute an undue limitation on the present invention. In the drawings:

fig. 1 is a schematic perspective view of a bottomless household elevator provided by an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 3 is a top view of a bottomless home elevator provided by an embodiment of the present invention;

fig. 4 is a schematic perspective view of a safety clamp assembly according to an embodiment of the present invention;

fig. 5 is a top view of an eccentric wheel according to an embodiment of the present invention.

List of reference numerals:

the elevator comprises a bottomless household elevator 1, a car 2, a driving part 3, a reversing pulley 4, a winding drum 5, a cable 6, a first connecting rod 7, a rope blocking wheel 8, a safety gear assembly 9, an eccentric wheel 10, a base 11, a guide rail groove 12, a rotating rod 13, a connecting plate 14, a resetting part 15 and a guide rail 100.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the terms "an aspect," "some aspects," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

As shown in fig. 1 to 5, the utility model provides a quick braking device of a household elevator 1 without pit, which comprises a driving component, wherein the driving component is arranged at the top of a car 2 and comprises a driving part 3, two reversing pulleys 4, a winding drum 5 and a cable 6 wound on the winding drum 5, a driving shaft of the driving part 3 is connected with the winding drum 5 to drive the winding drum 5 to rotate, the winding drum 5 is connected with the bottom ends of two cables 6, the cable 6 extends upwards after being reversed by the reversing pulleys 4, the top end of the cable 6 is fixedly arranged at the upper position of the car 2, and the winding drum 5 rotates to draw in or release the cable 6, so that the car 2 moves upwards or downwards along the cable 6; the rope blocking wheel assemblies comprise two first connecting rods 7 and two rope blocking wheels 8, one end of each first connecting rod 7 is rotatably provided with a rope blocking wheel 8, the other end of each first connecting rod is hinged to the top of the lift car 2, the cable 6 extends upwards after being reversed by the reversing pulley 4 and is abutted against the rope blocking wheel 8, and the cable 6 can apply force to the first connecting rods 7 through the rope blocking wheels 8 so that the first connecting rods 7 rotate to a working position or a triggering position; the two safety gear assemblies 9 are respectively arranged below the two rope stopping wheel assemblies, and the safety gear assemblies 9 are positioned at the upper half part of the cage 2; the safety jaw assembly 9 comprises an eccentric 10, the eccentric 10 having a first state of stopping the movement of the car 2 and a second state of releasing the movement of the car 2; when the first connecting rod 7 is in the working position, the safety gear assembly 9 is in the second state; when the first connecting rod 7 is at the triggering position, the first connecting rod 7 triggers the safety gear assembly 9 to switch the safety gear assembly 9 from the second state to the first state. The braking safety gear can detect whether the elevator is broken through the movement of the rope blocking wheel 8 and the first connecting rod 7, when the elevator is not broken and is in a normal working state, the rope 6 gives a certain force to the first connecting rod 7 to enable the rope blocking wheel 8 and the first connecting rod 7 to be in working positions, when the rope 6 of the elevator is broken, the rope blocking wheel 8 which is abutted to the rope 6 does not receive the force of the rope 6 any more due to the sudden loosening of the rope 6, the rope blocking wheel 8 and the first connecting rod 7 rotate to a triggering position and trigger the safety gear component 9 to switch states, the safety gear component 9 locks the guide rails 100 on two sides of the car 2, the car 2 can stop moving on the guide rails 100, in the process, the safety gear component 9 adopts the eccentric wheel 10 to brake, the eccentric wheel 10 does not need to move, the conversion between the first state and the second state can be completed only by rotating, and the braking time is reduced, braking distance shortens thereupon, avoids passenger in car 2, the car 2 to lead to unexpected and the damage because of 6 fracture drop suddenly of hawser, protects the state after the elevator rope breaks, greatly reduced to the inside passenger's of car 2 injury degree, also increased the stationarity and the security of elevator simultaneously.

In one embodiment, as shown in fig. 5, the quick braking device further comprises a lifting assembly, one end of which is hinged to the first link 7 and the other end of which is hinged to the safety gear assembly 9. The lifting assembly acts primarily as an intermediate linkage, transferring the motion of the first link 7 to the safety gear assembly 9.

In one embodiment, as shown in fig. 4 to 5, the safety gear assembly 9 further includes a base 11, the base 11 defines a guide groove 12, the eccentric 10 is located at one side of the guide groove 12, and the eccentric 10 can rotate toward the direction gradually approaching the guide groove 12. When the safety gear brake is not needed, the eccentric wheel 10 is positioned at one side of the guide rail groove 12 and does not contact with the guide rail 100 in the guide rail groove 12; when braking is required, the eccentric 10 rotates and comes gradually closer to the guide rail groove 12 and finally comes into contact with the guide rail 100 to brake the car 2.

In one embodiment, as shown in fig. 4 to 5, the safety gear assembly 9 further comprises a rotating rod 13, one end of the rotating rod 13 is fixedly connected with the central shaft of the eccentric 10, and the other end is connected with a lifting assembly, and the lifting assembly can drive the rotating rod 13 to rotate so as to rotate the eccentric 10 from the second state to the first state. The rotation of the eccentric 10 is realized by a rotation rod 13 fixedly connected to the central shaft of the eccentric 10, and when the lifting assembly moves upward, the rotation rod 13 hinged to the lifting assembly is driven to rotate upward, and the eccentric 10 rotates in a direction gradually approaching the guide rail groove 12, thereby pressing the guide rail 100 to brake the car 2.

In one embodiment, as shown in fig. 4 to 5, the safety gear assembly 9 further comprises a connecting plate 14, the connecting plate 14 is fixedly connected with the base 11, the connecting plate 14 is provided with a through hole, and the central shaft of the eccentric wheel 10 passes through the through hole and is fixedly connected with the rotating rod 13. The connecting plate 14 is used for fixing the eccentric wheel 10 and the rotating rod 13 on the base 11, and the through hole on the connecting plate 14 can allow the eccentric wheel 10 to rotate along with the rotating rod 13.

In one embodiment, as shown in fig. 1 to fig. 1, the lifting assembly is hinged to the rotating rod 13, and the first connecting rod 7 can drive the lifting assembly to move downward, so as to drive the rotating rod 13 to rotate upward to rotate the eccentric wheel 10 and switch from the second state to the first state.

In one embodiment, as shown in fig. 1 to 1, the eccentric 10 is in the second state, and the rotating rod 13 is inclined downward by an angle of not more than 45 °. When need not the braking, eccentric wheel 10 is in the second state, and when dwang 13 downward sloping angle was not more than 45, drive dwang 13 upwards rotation more easily during the lifting unit upward movement, avoid producing the dwang 13 because of the too big emergence that leads to unable pivoted condition of downward sloping angle.

Specifically, as shown in fig. 4, the rotating lever 13 is inclined downward at an angle of 0 °. The angle of dwang 13 downward sloping is 0, and dwang 13 is in the horizontality promptly, drives dwang 13 during lifting means upward movement and rotates more easily, and dwang 13 is the state of tilt up after the braking, and lifting means is more stable with dwang 13.

In a particular embodiment, as shown in fig. 1 to 2, the quick-braking device further comprises a return element 15, the return element 15 being able to impart a force to the first link 7 to move towards the activated position. The return element 15 enables the first link 7 to automatically rotate upwards to the triggering position after the cable has broken. In particular, the return member 15 is provided as a spring.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (9)

1. Quick arresting gear of no pit home use elevator, its characterized in that includes:

the driving assembly is arranged at the top of the car and comprises a driving piece, two reversing pulleys, a winding drum and a cable wound on the winding drum, a driving shaft of the driving piece is connected with the winding drum to drive the winding drum to rotate, the winding drum is connected with the bottom ends of the two cables, the cable is reversed by the reversing pulleys and extends upwards, the top end of the cable is fixedly arranged above the car, and the winding drum rotates to gather or release the cable so that the car moves upwards or downwards along the cable;

the two rope blocking wheel assemblies comprise two first connecting rods and rope blocking wheels, one ends of the first connecting rods are rotatably provided with the rope blocking wheels, the other ends of the first connecting rods are hinged to the top of the lift car, the cable extends upwards after reversing from the reversing pulley and is abutted against the rope blocking wheels, and the cable can apply force to the first connecting rods through the rope blocking wheels so that the first connecting rods rotate to a working position or a triggering position;

the two safety gear assemblies are respectively arranged below the two rope stopping wheel assemblies and are positioned at the upper half part of the lift car; the safety gear assembly comprises an eccentric wheel, and the eccentric wheel has a first state for stopping the movement of the cage and a second state for releasing the movement of the cage;

when the first connecting rod is located at the working position, the safety clamp assembly is located at the second state; when the first connecting rod is located at the triggering position, the first connecting rod triggers the safety clamp assembly to enable the safety clamp assembly to be switched from the second state to the first state.

2. The quick brake apparatus of claim 1, further comprising a lifting assembly, one end of the lifting assembly being hinged to the first link and the other end being hinged to the safety gear assembly.

3. The quick braking device of claim 2, wherein the safety caliper assembly further comprises a base, the base defines a guide groove, the eccentric wheel is located on one side of the guide groove, and the eccentric wheel can rotate in a direction gradually approaching the guide groove.

4. The quick braking device according to claim 3, wherein the safety clamp assembly further comprises a rotating rod, one end of the rotating rod is fixedly connected with the central shaft of the eccentric wheel, the other end of the rotating rod is connected with the lifting assembly, and the lifting assembly can drive the rotating rod to rotate so as to enable the eccentric wheel to rotate from the second state to the first state.

5. The quick braking device according to claim 4, wherein the safety caliper assembly further comprises a connecting plate, the connecting plate is fixedly connected with the base, the connecting plate is provided with a through hole, and a central shaft of the eccentric wheel penetrates through the through hole and is fixedly connected with the rotating rod.

6. The quick brake apparatus according to claim 4, wherein the lifting assembly is pivotally connected to the rotating rod, and the first connecting rod is capable of moving the lifting assembly downward, so as to rotate the rotating rod upward to rotate the eccentric wheel and switch from the second state to the first state.

7. The quick braking device according to claim 6, wherein the rotating lever is inclined downward by an angle of not more than 45 ° when the eccentric wheel is in the second state.

8. The quick brake apparatus according to claim 7, wherein the rotating lever is inclined downward at an angle of 0 °.

9. The quick brake apparatus of claim 1, further comprising a reset member configured to impart a force to the first link to move toward the activated position.

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