CN112357718B - Quick braking device of household elevator without pit - Google Patents
Quick braking device of household elevator without pit Download PDFInfo
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- CN112357718B CN112357718B CN202011239791.5A CN202011239791A CN112357718B CN 112357718 B CN112357718 B CN 112357718B CN 202011239791 A CN202011239791 A CN 202011239791A CN 112357718 B CN112357718 B CN 112357718B
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- 230000001960 triggered effect Effects 0.000 claims description 8
- 230000006378 damage Effects 0.000 abstract description 6
- 208000027418 Wounds and injury Diseases 0.000 abstract description 5
- 208000014674 injury Diseases 0.000 abstract description 3
- 206010057071 Rectal tenesmus Diseases 0.000 abstract description 2
- 208000012271 tenesmus Diseases 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/12—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/12—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
- B66B5/125—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
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- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The application discloses no pit home use elevator's quick arresting gear, this quick arresting gear sets up no pit home use elevator's drive assembly in the car top, set up the safety tongs subassembly in the first half of car again, the distance between trigger assembly and the safety tongs subassembly has been shortened, make hawser trigger assembly can trigger the safety tongs subassembly as fast as possible after the fracture, shorten braking time and braking distance, avoid elevator car to drop to ground because of braking distance overlength, avoid the car, passenger in the car leads to accident and damage because of the hawser fracture suddenly tenesmus, state after the elevator rope break has been protected, greatly reduced the degree of injury to the passenger in the car, the stationarity and the security of elevator have also been increased simultaneously.
Description
Technical Field
The invention relates to the technical field of household elevators without pits, in particular to a quick braking device of a household elevator without pits.
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.
Because the number of the load-bearing people of the general traction type elevator is more and the load-bearing is larger, the motors used for driving are all arranged at the top of the elevator shaft, and because the number of the load-bearing people of the traction type elevator is more, the gravity center of the traction type elevator is positioned at the bottommost part of the elevator car during working, and on the basis, the safety tongs used for braking the traction type elevator are generally arranged at the bottommost part of the elevator car; however, the number of people generally borne by the household elevator without the pit is small, the up-and-down movement distance is also small, and if the traction type elevator is provided with the safety tongs at the bottom of the elevator car, the safety tongs are obviously unscientific and have certain safety risks.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a rapid braking device for a bottomless home elevator, in which a driving assembly of the bottomless home elevator is disposed on a top of a car, and a safety tong assembly is disposed on an upper half portion of the car, so that a distance between a trigger assembly and the safety tong assembly is shortened, the trigger assembly can trigger the safety tong assembly as quickly as possible after a cable is broken, braking time and braking distance are shortened, the elevator car is prevented from falling to the ground due to an excessively long braking distance, and stability and safety of the elevator are improved.
In order to achieve the above object, the present invention provides a rapid braking device for a bottomless home elevator, comprising: 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 trigger assemblies are respectively arranged at the two reversing pulleys; the two safety gear assemblies are respectively arranged below the two trigger assemblies and are positioned at the upper half part of the car; the safety gear assembly has a first state for stopping the movement of the car and a second state for allowing the movement of the car, and the triggering assembly can trigger the safety gear assembly to switch from the second state to the first state. This quick arresting gear sets up the drive assembly of no pit home use elevator in the car top, again with the safety tongs subassembly set up in the first half of car, shortened the distance between trigger assembly and the safety tongs subassembly, make the hawser trigger the subassembly after the fracture can be as fast as possible trigger the safety tongs subassembly, shorten braking time and braking distance, avoid elevator car to drop to ground because of braking distance overlength, avoid the car, passenger in the car leads to accident and damage because of the hawser fracture suddenly tenesmus, the state after restricting the elevator absolutely has been protected, greatly reduced the injury degree to the inside passenger of car, the stationarity and the security of elevator have also been increased simultaneously.
In one example, the trigger assembly comprises two first connecting rods, a rope blocking wheel and a reset piece, one end of each first connecting rod is rotatably provided with the rope blocking wheel, the other end of each first connecting rod is hinged to the top of the car, the cable extends upwards after reversing from the reversing pulley and is abutted against the rope blocking wheel, and the cable can apply force to the first connecting rods through the rope blocking wheels so that the first connecting rods rotate to the working position or the trigger position; 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 return member is capable of imparting a force to the first link toward the operating position. The time required for triggering the safety gear assembly can be further shortened by triggering the safety gear assembly through the rope blocking wheel which is in direct contact with the cable, and the rope blocking wheel can react immediately after the cable is broken and trigger the safety gear assembly.
In one example, the trigger assembly further comprises a lifting piece and a connecting piece, the lifting piece is U-shaped, the upper end of the lifting piece is respectively connected with the two first connecting rods, one end of the connecting piece is fixedly connected with the lower end of the lifting piece, and the other end of the connecting piece is hinged with the safety gear assembly; when the first connecting rod rotates from the working position to the triggering position, the lifting piece can be driven to move upwards, and therefore the safety clamp assembly is triggered to be switched from the second state to the first state.
In an example, the piece that resets includes spacing board, spring axle and spacing board down, the both ends of spacing board are fixed in respectively on last spacing board carry the tip of piece, spacing board is fixed in the car top down, go up the spacing board and seted up the through-hole, the through-hole has been seted up down to the spacing board down, the spring axle passes go up the through-hole with through-hole down, the spring housing is located the spring axle is located go up the spacing board with between the spacing board down, the tip of spring axle has the backstop portion, the backstop portion can with the up end butt of spacing board down. When the elevator is in a normal working state, the spring is in a compressed state due to the force of the cable on the rope blocking wheel and the first connecting rod; when the cable is broken, the cable does not give the force to the rope blocking wheel and the first connecting rod any more, the bottom of the spring in a compressed state is limited by the lower limiting plate, and the upper part of the spring gives the upward force to the upper limiting plate, so that the upper limiting plate pushes the first connecting rod to rotate upwards. The piece that resets not only can make the automatic upwards rotation of first connecting rod in order to carry and draw trigger assembly after the hawser fracture, the spring can accelerate the reaction rate after the hawser fracture moreover, makes braking safety tongs can be faster brake the car, and the security of elevator is better.
In one example, the lifting piece and the first connecting rod are connected through a connecting rod assembly, the connecting rod assembly comprises two second connecting rods and two third connecting rods, one end of each second connecting rod is arranged on the top of the car and hinged to the end of the first connecting rod, the other end of each second connecting rod is hinged to the end of the lifting piece, one end of each third connecting rod is hinged to the middle of the first connecting rod, and the other end of each third connecting rod is slidably arranged in the middle of the second connecting rod. The connecting rod component is mainly used for converting the rotation of the first connecting rod into the up-and-down movement of the trigger component.
In one example, the triggering assembly comprises an elastic plate, a fixed part, a rotating part and a triggering part hinged with the rotating part, the middle part of the elastic plate is connected with the top of the car, the two ends of the elastic plate are fixedly provided with the reversing pulleys, the cable applies upward force to the end part of the elastic plate by the reversing pulleys so as to enable the elastic plate to be bent and deformed, and the two ends of the elastic plate move upwards; the fixing piece is fixedly arranged on the lift car, the rotating piece is rotatably arranged on the fixing piece and is positioned below the end part of the elastic plate; when the end part of the elastic plate moves downwards and exceeds a set threshold value, the elastic plate can trigger the rotating piece to rotate, so that the triggering piece is driven to trigger the safety clamp assembly to be switched from the second state to the first state. The elastic plate is fixedly arranged at the bottom of the reversing pulley, so that two ends of the elastic plate upwards have a section of displacement through the tensile force of the cable when the elevator normally works, and when the cable is broken, the elastic plate does not move downwards due to the upward tensile force of the cable, so that the triggering assembly below the elastic plate is triggered.
In one example, the rotating part comprises an extension rod, a rotating shaft and a lifting rod, the rotating shaft is arranged through the fixing part, one end of the extension rod is fixedly connected to the rotating shaft, the other end of the extension rod can be abutted against the elastic plate, one end of the lifting rod is connected to the end part of the rotating shaft and can rotate along with the rotating shaft, and the other end of the lifting rod is hinged with the trigger; the elastic plate can trigger the extension rod to rotate downwards, so that the lifting rod is driven to rotate upwards through the rotating shaft, the trigger piece moves upwards, and the safety clamp assembly is triggered to be switched from the second state to the first state.
In one example, the rotating member further comprises a stop plate, a stop plane is arranged on the periphery of the end portion of the rotating shaft, the lifting rod is rotatably sleeved on the rotating shaft, and the stop plate is fixedly connected with the lifting rod, and the end portion of the stop plate abuts against the stop plane.
In one example, the rotating member further comprises a torsion spring, the rotation shaft is sleeved with the torsion spring, one end of the torsion spring is fixed to the extension bar, the other end of the torsion spring is fixed to the fixing member, and the torsion spring can provide upward rotating force for the extension bar. When the mooring rope is repaired and the household elevator without the pit can work normally, the two ends of the elastic plate bend upwards again, the extension rod does not bear the downward force of the elastic plate any more, the extension rod rotates upwards under the action of the torsion spring, and the safety clamp assembly returns to the second state allowing the car to move.
In one example, the quick brake further comprises a micro switch fixed to the top of the car; the trigger assembly is capable of triggering the micro-switch while triggering the safety jaw assembly to switch from the second state to the first state. The micro switch can control the power device in the lifting assembly to stop, when the cable is broken, the trigger assembly moves upwards to trigger the micro switch above the trigger assembly, and the micro switch controls the power device to stop working after being triggered to further brake the lift car.
Drawings
The drawings described herein are only for assisting 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 only for explaining the technical solutions of the present invention and do not constitute a limitation of the present invention. In the drawings:
fig. 1 is a schematic perspective view of a bottomless home elevator provided by an embodiment of the invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
fig. 3 is a schematic perspective view of a bottomless home elevator according to another embodiment of the present invention;
fig. 4 is an enlarged schematic view of a portion B in fig. 3.
List of reference numerals:
the elevator comprises a bottomless household elevator 1, a car 2, a driving piece 3, a reversing pulley 4, a winding drum 5, a cable 6, a safety gear assembly 7, a first connecting rod 8, a rope blocking wheel 9, a lifting piece 10, a connecting piece 11, an upper limiting plate 12, a spring 13, a spring shaft 14, a lower limiting plate 15, a stopping part 16, a second connecting rod 17, a third connecting rod 18, an elastic plate 19, a fixing piece 20, a triggering piece 21, an extension rod 22, a rotating shaft 23, a lifting rod 24, a stopping plate 25, a stopping plane 26, a torsion spring 27 and a microswitch 28.
Detailed Description
In order to more clearly explain the overall concept of the 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 "central," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for ease of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
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 defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description of the present specification, reference to the description of the terms "one aspect," "some aspects," "an example," "a specific example," or "some examples" or the like means 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 present 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 4, the present invention proposes a quick braking device of a bottomless home elevator 1, comprising: the driving assembly is arranged at the top of the car 2 and comprises a driving piece 3, two reversing pulleys 4, a winding drum 5 and cables 6 wound on the winding drum 5, a driving shaft of the driving piece 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 the two cables 6, the cables 6 extend upwards after being reversed by the reversing pulleys 4, the top ends of the cables 6 are fixedly arranged at the upper position of the car 2, and the winding drum 5 rotates to gather or release the cables 6 so that the car 2 moves upwards or downwards along the cables 6; the two trigger assemblies are respectively arranged at the two reversing pulleys 4; the two safety gear assemblies 7 are respectively arranged below the two trigger assemblies, and the safety gear assemblies 7 are positioned at the upper half part of the car 2; the safety gear assembly 7 has a first state in which it stops the movement of the car 2 and a second state in which it allows the movement of the car 2, the triggering assembly being able to trigger the safety gear assembly 7 to switch from the second state to said first state. This quick arresting gear sets up the drive assembly of no pit home use elevator 1 in car 2 top, set up safety tongs subassembly 7 in car 2's first half again, the distance between trigger subassembly and the safety tongs subassembly 7 has been shortened, make hawser 6 trigger subassembly can trigger safety tongs subassembly 7 as fast as possible after the fracture, shorten braking time and braking distance, avoid elevator car 2 to drop to ground because of the braking distance overlength, avoid car 2, passenger in the car 2 falls down suddenly because of hawser 6 fracture and leads to taking place accident and damage, state after the elevator rope breakage has been protected, greatly reduced the degree of injury to the inside passenger of car 2, the stationarity and the security of elevator have also been increased simultaneously. Preferably, the safety gear assembly 7 is arranged between one half and three quarters of the car 2 from below.
In one embodiment, as shown in fig. 1 to 2, the triggering assembly includes two first connecting rods 8, a rope blocking wheel 9 and a resetting member, one end of the first connecting rod 8 is rotatably provided with the rope blocking wheel 9, the other end of the first connecting rod is hinged to the top of the car 2, the cable 6 extends upwards after being reversed by the reversing pulley 4 and is abutted against the rope blocking wheel 9, and the cable 6 can apply force to the first connecting rod 8 through the rope blocking wheel 9 so as to enable the first connecting rod 8 to rotate to the working position or the triggering position; when the first connecting rod 8 is in the working position, the safety gear component 7 is in the second state; when the first connecting rod 8 is at the triggering position, the first connecting rod 8 triggers the safety gear assembly 7 so that the safety gear assembly 7 is switched from the second state to the first state; the return member is capable of imparting a force to the first link 8 towards the operative position. The time required for triggering the safety gear assembly 7 can be further shortened by triggering the safety gear assembly 7 by means of the catch pulley 9 which is in direct contact with the cable 6, the catch pulley 9 reacting immediately after the cable 6 has broken and triggering the safety gear assembly 7.
Specifically, as shown in fig. 1 to 2, the trigger assembly further includes a lifting piece 10 and a connecting piece 11, the lifting piece 10 is U-shaped, the upper end of the lifting piece 10 is connected to the two first connecting rods 8, respectively, one end of the connecting piece 11 is fixedly connected to the lower end of the lifting piece 10, and the other end is hinged to the safety gear assembly 7; the first link 8, when rotated from the operating position to the triggering position, moves the lifting member 10 upwardly, thereby triggering the safety jaw assembly 7 to switch from the second state to the first state.
In one embodiment, as shown in fig. 1 to 2, the restoring member includes an upper limiting plate 12, a spring 13, a spring shaft 14, and a lower limiting plate 15, two ends of the upper limiting plate 12 are respectively fixed to the end of the lifting member 10, the lower limiting plate 15 is fixed to the top of the car 2, the upper limiting plate 12 is provided with an upper through hole, the lower limiting plate 15 is provided with a lower through hole, the spring shaft 14 passes through the upper through hole and the lower through hole, the spring 13 is sleeved on the spring shaft 14 and located between the upper limiting plate 12 and the lower limiting plate 15, the end of the spring shaft 14 is provided with a stopping portion 16, and the stopping portion 16 can abut against the upper end surface of the lower limiting plate 15. When the elevator is in a normal working state, the spring 13 is in a compressed state due to the force of the cable 6 on the rope blocking wheel 9 and the first connecting rod 8; when the cable 6 is broken, the cable 6 does not give a force to the rope blocking wheel 9 and the first connecting rod 8 any more, the bottom of the spring 13 in a compressed state is limited by the lower limiting plate 15, and the upper part of the spring 13 gives an upward force to the upper limiting plate 12, so that the upper limiting plate 12 pushes the first connecting rod 8 to rotate upwards. The piece that resets not only can make the automatic upwards rotation of first connecting rod 8 in order to carry out and draw trigger assembly after 6 fracture of hawser, spring 13 can accelerate the reaction rate after 6 fracture of hawser moreover, makes braking safety tongs can be faster brake car 2, and the security of elevator is better.
In one embodiment, as shown in fig. 1 to 2, the lifting member 10 is connected to the first link 8 by a link assembly including two second links 17 and two third links 18, one end of the second link 17 is disposed on the top of the car 2 and hinged to the end of the first link 8, the other end of the second link 17 is hinged to the end of the lifting member 10, one end of the third link 18 is hinged to the middle of the first link 8, and the other end of the third link 18 is slidably disposed on the middle of the second link 17. The linkage assembly is primarily used to convert the rotation of the first link 8 into an up and down movement of the trigger assembly.
In another embodiment, as shown in fig. 3 to 4, the triggering assembly includes an elastic plate 19, a fixed member 20, a rotating member and a triggering member 21 hinged to the rotating member, the middle part of the elastic plate 19 is connected to the top of the car 2, the two ends of the elastic plate 19 are fixedly provided with the diverting pulleys 4, the cable 6 applies an upward force to the ends of the elastic plate 19 from the diverting pulleys 4 to make the elastic plate 19 bend and deform, and the two ends of the elastic plate 19 move upward; the fixed part 20 is fixedly arranged on the car 2, the rotating part is rotatably arranged on the fixed part 20 and is positioned below the end part of the elastic plate 19; when the end of the elastic plate 19 moves downwards to exceed the set threshold, the elastic plate 19 can trigger the rotating member to rotate, so as to drive the trigger member 21 to trigger the safety clamp assembly 7 to switch from the second state to the first state. By fixedly arranging the elastic plate 19 at the bottom of the reversing pulley 4, two ends of the elastic plate 19 have a displacement upwards under the pulling force of the cable 6 when the elevator works normally, and when the cable 6 is broken, the elastic plate 19 does not move downwards under the upward pulling force of the cable 6 any more, so that the trigger assembly positioned below the elastic plate 19 is triggered.
Specifically, as shown in fig. 3 to 4, the rotating member includes an extending rod 22, a rotating shaft 23 and a lifting rod 24, the rotating shaft 23 is inserted into the fixing member 20, one end of the extending rod 22 is fixed to the rotating shaft 23, the other end of the extending rod can be abutted against the elastic plate 19, one end of the lifting rod 24 is connected to the end of the rotating shaft 23, the lifting rod 24 can rotate along with the rotating shaft 23, and the other end of the lifting rod is hinged with a triggering member 21; the elastic plate 19 can trigger the extension rod 22 to rotate downwards, so that the rotation shaft 23 drives the lifting rod 24 to rotate upwards, so that the trigger 21 moves upwards and triggers the safety clamp assembly 7 to switch from the second state to the first state.
In one embodiment, as shown in fig. 3 to 4, the rotating member further includes a stop plate 25, a stop plane 26 is disposed on an outer periphery of an end portion of the rotating shaft 23, the lifting rod 24 is rotatably sleeved on the rotating shaft 23, the stop plate 25 is fixedly connected to the lifting rod 24, and an end portion of the stop plate 25 abuts against the stop plane 26.
In one embodiment, as shown in fig. 3 to 4, the rotating member further includes a torsion spring 27, the torsion spring 27 is sleeved on the rotating shaft 23, one end of the torsion spring 27 is fixed to the protruding rod 22, and the other end is fixed to the fixing member 20, and the torsion spring 27 can provide an upward rotating force to the protruding rod 22. When the cable 6 is repaired and the bottomless home elevator 1 can work normally, the two ends of the elastic plate 19 are bent upwards again, the extension bar 22 is not forced downwards by the elastic plate 19, the extension bar 22 rotates upwards under the action of the torsion spring 27, and the safety gear assembly 7 returns to the second state allowing the car 2 to move.
In one embodiment, as shown in fig. 1-2, the quick braking device further comprises a micro switch 28, the micro switch 28 being fixed to the top of the car 2; the trigger assembly is capable of triggering the microswitch 28 at the same time as the trigger assembly triggers the safety jaw assembly 7 to switch from the second state to the first state. The micro switch 28 can control the power device in the lifting assembly to stop, when the cable 6 is broken, the trigger assembly moves upwards to trigger the micro switch 28 above the trigger assembly, and the micro switch 28 is triggered to control the power device to stop working, so as to further brake the car 2.
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 alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. 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 trigger assemblies are respectively arranged at the two reversing pulleys;
the two safety gear assemblies are respectively arranged below the two trigger assemblies and are positioned at the upper half part of the car; the safety clamp assembly has a first state for stopping the movement of the car and a second state for allowing the movement of the car, and the triggering assembly can trigger the safety clamp assembly to switch from the second state to the first state;
the trigger assembly comprises two first connecting rods, a rope blocking wheel and a reset piece, one end of each first connecting rod is rotatably provided with the rope blocking wheel, the other end of each first connecting rod is hinged to the top of the car, the cable extends upwards after being reversed from the reversing pulley and is abutted against the rope blocking wheel, and the cable can apply force to the first connecting rods through the rope blocking wheels so that the first connecting rods rotate to the working position or the triggering position; 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 return member is capable of imparting a force to the first link toward the operating position.
2. The rapid braking device for a bottomless home elevator according to claim 1, wherein the trigger assembly further comprises a lifting member and a connecting member, the lifting member is U-shaped, the upper end of the lifting member is respectively connected with the two first connecting rods, one end of the connecting member is fixedly connected with the lower end of the lifting member, and the other end of the connecting member is hinged to the safety gear assembly; when the first connecting rod rotates from the working position to the triggering position, the lifting piece can be driven to move upwards, and therefore the safety clamp assembly is triggered to be switched from the second state to the first state.
3. The rapid braking device for a household elevator without pit according to claim 2, wherein the reset member comprises an upper limiting plate, a spring shaft and a lower limiting plate, two ends of the upper limiting plate are respectively fixed to the end of the lifting member, the lower limiting plate is fixed to the top of the car, the upper limiting plate is provided with an upper through hole, the lower limiting plate is provided with a lower through hole, the spring shaft passes through the upper through hole and the lower through hole, the spring is sleeved on the spring shaft and is located between the upper limiting plate and the lower limiting plate, the end of the spring shaft is provided with a stopping portion, and the stopping portion can abut against the upper end surface of the lower limiting plate.
4. The quick braking device of a bottomless home elevator according to claim 2, wherein the lifting member is connected with the first connecting rod through a connecting rod assembly, the connecting rod assembly comprises two second connecting rods and two third connecting rods, one end of each second connecting rod is arranged on the top of the elevator car and hinged with the end part of the first connecting rod, the other end of each second connecting rod is hinged with the end part of the lifting member, one end of each third connecting rod is hinged with the middle part of the first connecting rod, and the other end of each third connecting rod is arranged in the middle part of the second connecting rod in a sliding manner.
5. The quick braking device of a bottomless home elevator according to claim 1, wherein the trigger assembly comprises an elastic plate, a fixed member, a rotating member and a trigger member hinged to the rotating member, the middle part of the elastic plate is connected to the top of the car, the reversing pulley is fixedly arranged at both ends of the elastic plate, the cable applies an upward force to the end part of the elastic plate by the reversing pulley so that the elastic plate is bent and deformed, and both ends of the elastic plate move upward; the fixing piece is fixedly arranged on the lift car, the rotating piece is rotatably arranged on the fixing piece and is positioned below the end part of the elastic plate; when the end part of the elastic plate moves downwards and exceeds a set threshold value, the elastic plate can trigger the rotating piece to rotate, so that the triggering piece is driven to trigger the safety clamp assembly to be switched from the second state to the first state.
6. The rapid braking device for a household elevator without pit according to claim 5, wherein the rotating member comprises an extension bar, a rotating shaft and a lifting bar, the rotating shaft is arranged through the fixing member, one end of the extension bar is fixedly connected to the rotating shaft, the other end of the extension bar can be abutted against the elastic plate, one end of the lifting bar is connected to the end of the rotating shaft and can rotate along with the rotating shaft, and the other end of the lifting bar is hinged to the triggering member; the elastic plate can trigger the extension rod to rotate downwards, so that the lifting rod is driven to rotate upwards through the rotating shaft, the trigger piece moves upwards, and the safety clamp assembly is triggered to be switched from the second state to the first state.
7. The rapid braking device for a household elevator without pit according to claim 6, wherein the rotating member further comprises a stop plate, a stop plane is disposed on the periphery of the end of the rotating shaft, the lifting rod is rotatably sleeved on the rotating shaft, the stop plate is fixedly connected to the lifting rod, and the end of the stop plate abuts against the stop plane.
8. The rapid braking device for a household elevator without pit according to claim 6, wherein the rotating member further comprises a torsion spring, the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is fixed on the extension bar, the other end of the torsion spring is fixed on the fixing member, and the torsion spring can provide upward rotating force to the extension bar.
9. The quick braking device of a bottomless home elevator according to any one of claims 1-8, characterized in that the quick braking device further comprises a microswitch fixed to the top of the car; the trigger assembly is capable of triggering the micro-switch while triggering the safety jaw assembly to switch from the second state to the first state.
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| CN202011239791.5A CN112357718B (en) | 2020-11-09 | 2020-11-09 | Quick braking device of household elevator without pit |
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| CN202011239791.5A CN112357718B (en) | 2020-11-09 | 2020-11-09 | Quick braking device of household elevator without pit |
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| CN112357718B true CN112357718B (en) | 2021-09-21 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04333481A (en) * | 1991-05-02 | 1992-11-20 | Hitachi Building Syst Eng & Service Co Ltd | Safety device for elevator |
| CN106185530A (en) * | 2016-07-29 | 2016-12-07 | 上海汉神机电股份有限公司 | Safety anti-falling device |
| CN205820611U (en) * | 2016-07-08 | 2016-12-21 | 东南电梯股份有限公司 | A kind of limiter of speed safety tongs shift mechanism saving ele-vator shaft spaces |
| CN205873573U (en) * | 2016-06-29 | 2017-01-11 | 昆山苏梯机电科技有限公司 | Low top layer does not have pit elevator |
| CN106660743A (en) * | 2014-05-20 | 2017-05-10 | 维托控股有限公司 | Safety device for operating an elevator |
| CN110436286A (en) * | 2018-05-02 | 2019-11-12 | 陕西小溪机电科技有限公司 | Towed elevator car guide rail braking system and its detection method |
| CN110467080A (en) * | 2019-07-25 | 2019-11-19 | 山东奔速电梯股份有限公司 | A kind of indoor elevator security protection lockable mechanism |
| CN110510471A (en) * | 2019-08-30 | 2019-11-29 | 山东奔速电梯股份有限公司 | A kind of Indoor Residential Ecological elevator operation protection system |
| CN210558732U (en) * | 2019-08-29 | 2020-05-19 | 宁波昌隆机电有限公司 | Safety device with double trigger mechanisms for lift car |
| CN211594722U (en) * | 2019-12-19 | 2020-09-29 | 怡达快速电梯有限公司 | Counterweight safety protection device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100643909B1 (en) * | 2004-04-08 | 2006-11-10 | (주)동광사우 | Emergency braking device for elevator |
| CN101287670B (en) * | 2006-07-14 | 2011-03-30 | 维托公开股份有限公司 | Elevator with electronic urgent safety clamp |
| AU2009238630B2 (en) * | 2008-04-21 | 2013-09-05 | Hollister-Whitney Elevator Corp | Elevator car brake with shoes actuated by springs coupled to gear drive |
| CN102431866B (en) * | 2011-10-20 | 2012-11-21 | 苏州通润驱动设备股份有限公司 | Safety braking device clamped on traction wheel of traction machine |
| CN204251124U (en) * | 2014-12-02 | 2015-04-08 | 江苏通鼎电梯有限公司 | A kind of sedan-chair top formula safety tongs lift linkage |
-
2020
- 2020-11-09 CN CN202011239791.5A patent/CN112357718B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04333481A (en) * | 1991-05-02 | 1992-11-20 | Hitachi Building Syst Eng & Service Co Ltd | Safety device for elevator |
| CN106660743A (en) * | 2014-05-20 | 2017-05-10 | 维托控股有限公司 | Safety device for operating an elevator |
| CN205873573U (en) * | 2016-06-29 | 2017-01-11 | 昆山苏梯机电科技有限公司 | Low top layer does not have pit elevator |
| CN205820611U (en) * | 2016-07-08 | 2016-12-21 | 东南电梯股份有限公司 | A kind of limiter of speed safety tongs shift mechanism saving ele-vator shaft spaces |
| CN106185530A (en) * | 2016-07-29 | 2016-12-07 | 上海汉神机电股份有限公司 | Safety anti-falling device |
| CN110436286A (en) * | 2018-05-02 | 2019-11-12 | 陕西小溪机电科技有限公司 | Towed elevator car guide rail braking system and its detection method |
| CN110467080A (en) * | 2019-07-25 | 2019-11-19 | 山东奔速电梯股份有限公司 | A kind of indoor elevator security protection lockable mechanism |
| CN210558732U (en) * | 2019-08-29 | 2020-05-19 | 宁波昌隆机电有限公司 | Safety device with double trigger mechanisms for lift car |
| CN110510471A (en) * | 2019-08-30 | 2019-11-29 | 山东奔速电梯股份有限公司 | A kind of Indoor Residential Ecological elevator operation protection system |
| CN211594722U (en) * | 2019-12-19 | 2020-09-29 | 怡达快速电梯有限公司 | Counterweight safety protection device |
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| CN112357718A (en) | 2021-02-12 |
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