CN112110311B - Electronic safety tongs for elevator braking - Google Patents
Electronic safety tongs for elevator braking Download PDFInfo
- Publication number
- CN112110311B CN112110311B CN202011139019.6A CN202011139019A CN112110311B CN 112110311 B CN112110311 B CN 112110311B CN 202011139019 A CN202011139019 A CN 202011139019A CN 112110311 B CN112110311 B CN 112110311B
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- Prior art keywords
- brake
- inclined surface
- elevator
- braking
- guide
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
- F16D63/008—Brakes acting on a linearly moving member
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses an electronic safety gear for elevator braking, which is configured on an elevator and used for carrying out bidirectional braking on a guide rail, and comprises: the brake device comprises at least one pair of guide slide rails, wherein brake blocks are arranged on the guide slide rails in a vertically sliding manner, a gap is reserved between the two groups of brake blocks and used for penetrating through the guide rails, and when the two groups of brake blocks slide vertically along the guide slide rails, the two groups of brake blocks can be close to each other until the two groups of brake blocks are locked on the guide rails, so that braking is realized; the braking jack catch can be driven by the telescopic piece to tightly push the guide rail and deflect relative to the telescopic piece along with the accidental movement of the elevator, so that the two groups of braking blocks are driven to move and brake.
Description
Technical Field
The invention relates to the technical field of elevator braking devices, in particular to an electronic safety gear for elevator braking.
Background
Being equipped with safety tongs on the elevator can be when the elevator breaks down, realize the interception to the friction braking of guide rail with the help of safety tongs, thereby prevent that the elevator from taking place to dash the top or dash the accident at the bottom, thereby passenger's life safety has further been ensured, however current safety tongs often works for pure mechanical system, work can not influenced by power failure in the mode of pure machinery, but its structure is comparatively complicated, whole device is comparatively huge, and it can be long back along with the use and lead to triggering sensitivity's change, thereby influence the operation of whole equipment, adaptability is relatively poor.
Therefore, there is a need to provide an electronic safety gear for elevator braking to solve the problems set forth in the background art.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: an electronic safety gear for elevator braking, which is arranged on an elevator for bi-directionally braking a guide rail, comprising:
the brake device comprises at least one pair of guide slide rails, wherein brake blocks are arranged on the guide slide rails in a vertically sliding manner, a gap is reserved between the two groups of brake blocks and used for penetrating through the guide rails, and when the two groups of brake blocks slide vertically along the guide slide rails, the two groups of brake blocks can be close to each other until the two groups of brake blocks are locked on the guide rails, so that braking is realized; and
the braking claw can be driven by the telescopic piece to tightly push the guide rail and deflect relative to the telescopic piece along with the accidental movement of the elevator, so that the two groups of braking blocks are driven to move and brake.
Further, as preferred, the braking jack catch includes pars contractilis and jack catch, the one end of pars contractilis articulates the output at the extensible member, the other end and the jack catch of pars contractilis are articulated mutually, the jack catch is at least including the joint inclined plane that has certain roughness.
Preferably, the telescopic member is a hydraulic telescopic unit, an electric telescopic unit or a pneumatic telescopic unit.
Further, preferably, the guide slide rail comprises a first inclined plane and second inclined planes symmetrically arranged at two sides of the first inclined plane, and the inclination directions of the first inclined plane and the second inclined plane are opposite;
the brake block comprises a third inclined surface and a fourth inclined surface, wherein the third inclined surface is arranged on the first inclined surface in a sliding mode, the fourth inclined surface is symmetrically arranged on two sides of the third inclined surface and is arranged on the second inclined surface in a sliding mode, and the inclination directions of the third inclined surface and the fourth inclined surface are opposite;
and a clamping piece is arranged on one side of the brake block close to the brake jaw, so that the brake block can be driven to move by the deflection action of the brake jaw through the clamping piece.
Further, preferably, driving rods contacting with the clamping piece are symmetrically fixed on two sides of the clamping jaw.
Further, preferably, the angle of deflection a of the expansion and contraction section is between 0 ° and 45 °.
Further, preferably, the guide slide rail is arranged on a substrate in an adjustable and elastic manner, and the substrate is fixed on the mounting frame;
the guide sliding rail is arranged on the mounting rack in a sliding manner;
and, the extensible member is also fixed on the mounting bracket.
Further, as preferred, still include the contactor, the contactor is fixed on the mounting bracket and is located the top of jack catch to produce the signal of telecommunication through the deflection extrusion of jack catch, the contactor is pressure sensor, photoelectric sensor or trigger switch, the contactor is the electricity federation with external control ware.
Preferably, a recess is formed in one side, close to the telescopic piece, of the brake block, a reset detector corresponding to the recess is arranged on the mounting frame, when the brake block is in a non-initial state, the detection end of the reset detector is pressed by the brake block to generate an electric signal, and the reset detector is electrically connected with an external controller.
Preferably, resistance increasing sheets are fixed on the sides, close to each other, of the brake blocks, and resistance increasing grooves are distributed on the outer surfaces of the resistance increasing sheets;
and a magnet capable of adsorbing the brake block is arranged in the middle of the guide slide rail.
Compared with the prior art, the invention provides an electronic safety gear for elevator braking, which has the following beneficial effects:
(1) the structure of the device is adjusted and taught repeatedly, stable bidirectional braking can be provided for the elevator under the condition of reducing the volume of the whole device, the device is rich in functions and strong in universality, the improvement of the elevator can be realized only by fixedly mounting the device on the elevator, and the use safety of the elevator is improved;
(2) when the device works, the braking claws are firstly clamped on the guide rail to provide braking to a certain extent, and then the braking claws drive the braking blocks to slide along the guide slide rail, so that the two groups of braking blocks can approach each other by the sliding until the braking blocks are locked on the guide rail, the braking is realized, and the braking effect is good;
(3) in this device, be provided with the contactor, utilize the contactor can judge the ascending or descending condition of elevator, provide the guarantee for subsequent this device resets.
Drawings
FIG. 1 is a schematic view of the installation of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic half-section view of FIG. 2;
FIG. 4 is a schematic structural diagram of a guide rail and a brake pad according to the present invention;
FIG. 5 is a schematic view of the brake pad of the present invention;
FIG. 6 is a schematic view of the structure of the jaws of the present invention;
FIG. 7 is a first schematic diagram of the operation of the braking jaw of the present invention;
FIG. 8 is a second schematic diagram of the operation of the braking pawl according to the present invention;
FIG. 9 is a third schematic view of the operation of the braking pawl of the present invention;
FIG. 10 is a schematic view of the locked state of the present invention;
FIG. 11 is a first schematic view of the installation operation of the special-shaped electromagnet according to the present invention;
FIG. 12 is a second schematic view of the installation operation of the special-shaped electromagnet according to the present invention;
FIG. 13 is a third schematic view of the installation operation of the special-shaped electromagnet according to the present invention;
FIG. 14 is a fourth schematic view of the installation operation of the special-shaped electromagnet according to the present invention;
FIG. 15 is a first schematic view of another embodiment of the present invention;
FIG. 16 is a second structural schematic diagram according to another embodiment of the present invention;
FIG. 17 is a third schematic structural view of the present invention;
FIG. 18 is a fourth schematic structural view of the present invention;
FIG. 19 is a fifth alternative schematic structural view of the present invention;
FIG. 20 is a first schematic view of the installation operation of the special-shaped electromagnet in another structural schematic of the present invention;
FIG. 21 is a second schematic view of the installation operation of the special-shaped electromagnet in another structural schematic of the present invention;
FIG. 22 is a third schematic view of the installation operation of the special-shaped electromagnet in another structural schematic of the present invention;
FIG. 23 is a fourth schematic view of the installation operation of the special-shaped electromagnet in another structural schematic of the present invention;
FIG. 24 is a fifth schematic view of the installation operation of the special-shaped electromagnet in another structural schematic of the present invention;
in the figure:
100. electronic safety gear; 200. a guide rail;
110. a mounting frame; 111. a top plate; 112. a base plate; 113. a yielding groove; 114. limiting a guide hole; 115. a first limiting convex strip; 116. mounting holes; 117. two limit convex strips
120. A substrate; 121. adjusting the bolt; 122. an elastic member;
130. a guide slide rail; 131. a first inclined plane; 132. a second inclined plane; 133. a first limit stop; 134. a second limit stop; 135. a guide pin;
140. a brake pad; 141. a third inclined plane; 142. a fourth slope;
150. a resistance increasing sheet; 151. a resistance increasing groove;
160. a telescoping member; 161. a stator; 162. a mover; 163. a power-assisted spring; 164. a limiting rod; 165. a hinged lever; 166. a slide cylinder; 167. a slide bar;
170. braking the jaw; 171. a hinge barrel; 172. a slide bar; 173. a claw; 1731. a hinge portion; 1732. a clamping part; 1733. clamping the inclined plane; 1734. a base surface; 1735. leading in an inclined plane;
174. a drive rod;
180. a contactor;
190. and synchronizing the blocks.
Detailed Description
Example 1: referring to fig. 1 to 24, in an embodiment of the present invention, a novel electronic safety gear for braking an elevator, where the electronic safety gear 100 is configured on an elevator for bi-directionally braking a guide rail 200, includes:
the brake shoe structure comprises at least one pair of guide slide rails 130, wherein brake shoes 140 are arranged on the guide slide rails 130 in a vertically sliding manner, a gap is reserved between two groups of brake shoes 140 and is used for penetrating through a guide rail 200, and when the two groups of brake shoes 140 slide vertically along the guide slide rails 130, the two groups of brake shoes 140 can approach each other until being locked on the guide rail 200, so that braking is realized;
a synchronizing block 190, the synchronizing block 190 being configured as a block capable of simultaneously sliding the two sets of brake blocks 140 up and down, an
And at least one set of telescopic members 160, wherein the telescopic members 160 can drive the brake blocks 140 to tightly press against the guide rail 200 and drive the two sets of brake blocks 140 to perform movement braking along with the accidental movement of the elevator.
Further, as shown in fig. 4-5, the guide rail 130 includes a first inclined surface 131, and second inclined surfaces 132 symmetrically disposed on both sides of the first inclined surface 131, and the inclination directions of the first inclined surface and the second inclined surface are opposite;
the brake block 140 includes a third inclined surface 141 slidably disposed on the first inclined surface 131, and a fourth inclined surface 142 symmetrically disposed on both sides of the third inclined surface 141 and slidably disposed on the second inclined surface, and the third inclined surface 141 and the fourth inclined surface 142 are inclined in opposite directions, so that the gap between the two sets of brake blocks 140 should not be too large, otherwise the overall length of the guide rail 130 or the inclination angles of the first inclined surface and the second inclined surface are increased, and when the brake block 140 moves upward along the guide rail 130, the brake block 140 uses the first inclined surface as a sliding track, and when the brake block 140 moves downward along the guide rail 130, the brake block 140 uses the second inclined surface as a sliding track.
In this embodiment, the guide rail 130 is adjustably and elastically disposed on the substrate 120, the substrate 120 is fixed on the mounting frame 110, specifically, as shown in fig. 2 (the installation position of the extensible member in fig. 2 is not applied to this embodiment) and fig. 4, through holes are symmetrically formed in the substrate 120 for allowing the adjusting bolt 121 to movably pass through, the adjusting bolt is in threaded connection with the guide rail 130, an elastic member 122 is sleeved outside the adjusting bolt 121, one end of the elastic member 122 abuts against the substrate, and the other end of the elastic member 122 abuts against the guide rail 130, and the guide rail 130 can be adjustably and elastically disposed on the substrate 120 by rotating the adjusting bolt 121;
in addition, preferably, the elastic member 122 is configured as a disc spring, which can provide a continuous and stable damping force;
in addition, the guide rail 130 is slidably disposed on the mounting frame 110, the mounting frame 110 includes a top plate 111 and a bottom plate 112, the top plate 111 and the bottom plate 112 are fixed by a fixing frame and a base plate, wherein the frame is used for fixedly mounting the telescopic member 160, the top plate 111 and the bottom plate 112 are both provided with mounting holes 116 for positioning and fixing the device on an elevator, and one side of the top plate 111 and one side of the bottom plate 112 are both provided with an abdicating groove 113 for abdicating the guide rail 200,
as shown in fig. 2 to 4 (the installation position of the telescopic member in fig. 2 and 4 is not applied to this embodiment) and fig. 10, the sliding motion of the guide rail 130 is limited by the base plate, the adjusting bolt and the elastic member 122, and in order to improve the sliding stability of the guide rail 130, the guide bolts 135 are symmetrically fixed at the upper and lower ends of the guide rail 130, at the same time, the limit guide holes 114 are opened at the positions of the top plate 111 and the bottom plate 112 corresponding to the guide bolts 135, the guide bolts 135 slide through the limit guide holes 114, and further, the bottoms of the two sets of second inclined surfaces 132 of the guide rail 130 extend downward to form a limit stopper one 133, and the positions of the bottom plate 112 corresponding to the limit stopper one 133 protrude upward to form a limit protrusion one 115, and the top of the first inclined surface of the guide rail 130 extends upward to form a limit stopper two 134, and the top plate 111 is protruded downwards to form a second limit protrusion 117 at the position corresponding to the second limit stopper 134.
In this embodiment, the telescopic member is a hydraulic telescopic unit, an electric telescopic unit or a pneumatic telescopic unit.
Preferably, as shown in fig. 4 and fig. 15 to 19, the telescopic member 160 is an electromagnet, the electromagnet is fixed on the mounting frame 110, a telescopic movable end of the electromagnet is hinged to the hinge rod 165, the other end of the hinge rod 165 is hinged to the synchronizing block 190, and the brake block 140 is fixed with the clamping column 143 at a position close to the synchronizing block 190;
the position of the synchronization block 190 corresponding to the locking column 143 is provided with a limiting waist-shaped hole, so that the locking column 143 enables the brake block 140 to be driven by the synchronization block 190 to move.
When the electromagnets are configured as one, as shown in fig. 15 to 18, when the electromagnets are powered off, the hinge rod 165 drives one of the brake blocks 140 to slide along the limiting waist-shaped hole of the synchronization block 190 and push against the guide rail 200, and along with the unexpected movement of the elevator, the brake block moves up or down, so that the synchronization block 190 drives the other brake block to move up or down synchronously, thereby realizing braking;
when the electromagnets are two, as shown in fig. 19, when the electromagnets are powered off, the two sets of hinge rods 165 simultaneously drive the corresponding brake blocks to slide along the position-limiting waist-shaped holes of the synchronization block 190 and push against the guide rail 200, and along with the unexpected movement of the elevator, the two sets of brake blocks move up or down, thereby realizing braking.
As a preferred embodiment, the elevator further comprises a contactor 180, the contactor 180 is fixed on the inner top of the mounting bracket 110, the contactor 180 is a pressure sensor, a photoelectric sensor or a trigger switch, the contactor 180 is electrically connected with an external controller, taking the photoelectric sensor as an example, when the elevator is in an unexpected ascending state or an unexpected descending state, two sets of brake pads are locked on the guide rail, and at this time, it needs to further judge whether the elevator is in the unexpected ascending state or the unexpected descending state: sheltering from the contactor when the brake pad and producing the signal of telecommunication to transmit the signal of telecommunication to the controller, and then judge that the elevator is in unexpected down, otherwise, the elevator then is in unexpected up-going, should judge that follow-up hinge rod 165 resumes to initial condition and have great effect, after elevator trouble elimination, the brake pad is still locked on guide rail 200, and because the brake pad has produced the auto-lock, only rely on extensible member 160 to restore to the throne hinge rod 165 and brake pad this moment, then need outside maintenance personal to utilize the reverse movement realization that drives the elevator to restore to the throne this moment.
In a preferred embodiment, a recess is formed on a side of the brake pad 140 away from the synchronizing block, a reset detector corresponding to the recess is disposed on the mounting frame 110, and when the brake pad 140 is in a non-initial state, a detection end of the reset detector is pressed by the brake pad 140 to generate an electrical signal, and the reset detector is electrically connected to an external controller, so that the reset detector can be configured as an elastic abutting member with a pressure sensor, and when the brake pad 140 is reset, the detection end of the reset detector extends into the recess.
In a preferred embodiment, resistance increasing sheets 150 are fixed on the sides of the brake blocks 140 close to each other, and resistance increasing grooves 151 are distributed on the outer surfaces of the resistance increasing sheets 150;
a magnet capable of attracting the brake block 140 is disposed at the middle of the guide rail 130.
In a preferred embodiment, the angle of deflection B of the hinge rod 165 is between 0 ° and 45 °.
The working principle is as follows: when the elevator moves accidentally, in the initial stage, the telescopic member drives the hinge rod 165 to drive the brake block to be clamped on the guide rail 200, and along with the continuous movement of the elevator, the brake block 140 is driven to slide, so that the locking block 140 is used for realizing further locking, wherein when the brake block 140 moves upwards along the guide rail 130, the brake block 140 takes the first inclined surface as the sliding rail, and when the brake block 140 moves downwards along the guide rail 130, the brake block 140 takes the second inclined surface as the sliding rail, and after the hidden danger is contacted, the brake block is reset
Example 2: as shown in fig. 20 to 24, the difference from embodiment 1 is that the telescopic member is a special-shaped electromagnet, the special-shaped electromagnet includes a stator 161, a mover 162, a power spring 163, a limiting rod 164, and a hinge rod 165, wherein the stator 161 is fixed on the mounting frame 110, the mover is slidably disposed in the stator 161, one end of the mover 162 away from the stator 161 is hinged to the hinge rod 165, and the other end of the hinge rod 165 is hinged to the synchronizing block 190;
the synchronous block 190 is further hinged to a sliding rod 167, the sliding rod 167 is slidably arranged in a sliding barrel 166, a power-assisted spring 163 is sleeved outside the sliding barrel 166, one end of the power-assisted spring 163 abuts against the synchronous block 190, the other end of the power-assisted spring abuts against a hinge block, the hinge block is hinged to a limiting rod 164, and the limiting rod 164 is fixed on the mounting frame 110;
and, the hinge rod 165 and the stopper rod 164 are not in contact with each other.
Example 3: as shown in fig. 1 to 10, a novel electronic safety gear for elevator braking, which is configured on an elevator for performing bidirectional braking on a guide rail 200, comprises:
at least one pair of guide rails 130, wherein the guide rails 130 are provided with brake blocks 140 capable of sliding up and down, a gap is left between two sets of the brake blocks 140 for passing through the guide rail 200, and when the two sets of the brake blocks 140 slide up and down along the guide rails 130, the two sets of the brake blocks 140 can approach each other until being locked on the guide rail 200, so as to realize braking, further, as shown in fig. 4-5, the guide rails 130 comprise a first inclined surface 131, a second inclined surface 132 symmetrically arranged on both sides of the first inclined surface 131, and the inclination directions of the first inclined surface and the second inclined surface are opposite;
the brake block 140 includes a third inclined surface 141 slidably disposed on the first inclined surface 131, and a fourth inclined surface 142 symmetrically disposed on both sides of the third inclined surface 141 and slidably disposed on the second inclined surface, and the third inclined surface 141 and the fourth inclined surface 142 are inclined in opposite directions, when the brake block 140 moves upward along the guide rail 130, the brake block 140 uses the first inclined surface as a sliding track, and when the brake block 140 moves downward along the guide rail 130, the brake block 140 uses the second inclined surface as a sliding track; and
the brake dog 170, the said brake dog 170 can be driven by the telescopic member 160 to tighten the guide rail 200, and deflect relative to the telescopic member 160 with the unexpected movement of the elevator, thus bring the two sets of brake blocks 140 to carry out the movement brake, that is, in operation, the brake is provided by the brake dog 170 first, and then the brake is provided by the brake blocks 140.
In this embodiment, as shown in fig. 2, the stopping jaw 170 includes a telescopic portion and a jaw 173, one end of the telescopic part is hinged with the output end of the telescopic member 160, the other end of the telescopic part is hinged with the claw 173, wherein, the telescopic part can be configured as a combination of a hinge cylinder 171 and a sliding rod 172, the sliding rod 172 is slidably disposed in the hinge cylinder 171, one end of the hinge cylinder 171 is hinged with the output end of the telescopic member 160, and the end of the sliding rod 172, which is far from the hinge cylinder 171, is hinged to the claw 173, to mention, as shown in fig. 6, the claw 173 includes a hinge portion 1731 and a catching portion 1732, wherein the hinge portion 1731 is used for being hinged with the sliding rod 172, the clamping portion 1732 is similar to a shape of a't', which includes a base surface 1734, a lead-in ramp 1735, and a clamping surface 1733, wherein the surface of clamping surface 1733 may be configured as a rough surface, the included angle between the clamping surface 1733 and the base surface 1734 is between 90 and 180 degrees.
In a preferred embodiment, the telescopic member is a hydraulic telescopic unit, an electric telescopic unit or a pneumatic telescopic unit, wherein, taking an electric telescopic unit as an example, the telescopic piece is configured into an electromagnetic control telescopic rod, when the elevator moves accidentally, when the electromagnet is de-energized, the telescopic rod is extended, thereby driving the clamping jaw 173 to be clamped on the guide rail 200, that is, in the initial stage, the pawl 173 is clamped against the guide rail 200 to provide an initial braking of the elevator, and as the elevator continues to move, the pawl 173 drives the telescopic part to deflect at an angle along the hinged end of the telescopic part, at which point the braking force provided by the pawl 173 weakens due to the deflection of the telescopic part, however, the claw 173 drives the telescopic part to deflect a certain angle along the hinged end of the telescopic part to drive the brake block 140 to slide, so that the locking block 140 is used for further locking, and continuous and coherent braking is realized.
In this embodiment, as shown in fig. 4, a side of the brake shoe 140 close to the brake jaw 170 is provided with a catch so that the brake shoe 140 can be driven to move by the deflecting action of the brake jaw 170 through the catch.
And driving rods 174 contacting with the clips are symmetrically fixed to both sides of the blocking jaw 173, specifically, each clip is formed by vertically and symmetrically arranged clipping columns 143, and the driving rods 174 are located at both sides of the two groups of clipping columns, so that the driving brake block 140 can be driven to move up and down by the cooperation of the driving rods 174 and the clipping columns.
As a preferred embodiment, as shown in fig. 7 to 9, the deflection angle a of the telescopic part is between 0 ° and 45 °, so that the length dimension of the guide rail and the retraction condition of the sliding rod 172 can be fully considered.
In this embodiment, the guide rail 130 is adjustably and elastically disposed on the substrate 120, the substrate 120 is fixed on the mounting frame 110, specifically, as shown in fig. 2 and 4, through holes are symmetrically formed in the substrate 120 for allowing the adjustment bolt 121 to movably pass through, the adjustment bolt is in threaded connection with the guide rail 130, an elastic member 122 is sleeved outside the adjustment bolt 121, one end of the elastic member 122 abuts against the substrate, the other end of the elastic member 122 abuts against the guide rail 130, and the guide rail 130 can be adjustably and elastically disposed on the substrate 120 by rotating the adjustment bolt 121;
in addition, preferably, the elastic member 122 is configured as a disc spring, which can provide a continuous and stable damping force;
in addition, the guide rail 130 is slidably disposed on the mounting frame 110, the mounting frame 110 includes a top plate 111 and a bottom plate 112, the top plate 111 and the bottom plate 112 are fixed by a fixing frame and a base plate, wherein the frame is used for fixedly mounting the telescopic member 160, the top plate 111 and the bottom plate 112 are both provided with mounting holes 116 for positioning and fixing the device on an elevator, and one side of the top plate 111 and one side of the bottom plate 112 are both provided with an abdicating groove 113 for abdicating the guide rail 200,
as shown in fig. 2 to 4 and fig. 10, the sliding motion of the guide rail 130 is limited by the base plate, the adjusting bolt and the elastic member 122, and in order to improve the sliding stability of the guide rail 130, guide bolts 135 are symmetrically fixed at the upper and lower ends of the guide rail 130, and at the same time, limit guide holes 114 are opened at positions of the top plate 111 and the bottom plate 112 corresponding to the guide bolts 135, the guide bolts 135 slidably pass through the limit guide holes 114, and, further, the bottoms of the two sets of second inclined surfaces 132 of the guide rail 130 extend downwards to form a limit stop one 133, and the position of the bottom plate 112 corresponding to the first limit stop 133 is protruded upward to form a first limit protrusion 115, and the top of the first inclined plane of the guide rail 130 extends upwards to form a second limit stop 134, and the top plate 111 is protruded downwards to form a second limit protrusion 117 at the position corresponding to the second limit stopper 134.
As a preferred embodiment, the elevator further comprises a contactor 180, the contactor 180 is fixed on the mounting bracket 110 and located above the claw 173 so as to generate an electrical signal through the deflection and compression of the claw 173, the contactor 180 is a pressure sensor, a photoelectric sensor or a trigger switch, the contactor 180 is electrically connected with an external controller, taking the pressure sensor as an example, when the elevator is in an unexpected ascending or unexpected descending state, the telescopic member 160 drives the claw 173 to abut against the guide rail 200, and at this time, it needs to be further determined whether the elevator is in an unexpected ascending or unexpected descending state: when the deflection action of the claw 173 extrudes the contactor 180 to enable the contactor to generate an electric signal, so that the electric signal is transmitted to the controller to judge that the elevator is in unexpected descending, otherwise, the elevator is in unexpected ascending, the judgment shows that the subsequent claw 173 has a greater effect in recovering to the initial state, after the elevator fault is eliminated, the claw and the brake block are still locked on the guide rail 200, and the claw and the brake block cannot be reset only by the telescopic piece 160 because the brake block has self-locking, at the moment, the outside maintenance personnel needs to realize resetting by driving the reverse movement of the elevator, namely, when the controller judges that the elevator is in unexpected descending, the controller feeds back the elevator to the maintenance personnel, the maintenance personnel drives the elevator to move upwards for a certain distance so as to reset the claw and the brake block, and when the controller judges that the elevator is in unexpected ascending, it feeds back to the maintenance personal, and the maintenance personal drives the elevator and moves a certain distance downwards to be convenient for jack catch and brake block reset.
In a preferred embodiment, a recess is formed on a side of the brake pad 140 adjacent to the extension member 160, a reset detector corresponding to the recess is disposed on the mounting frame 110, and when the brake pad 140 is in a non-initial state, a detection end of the reset detector is pressed by the brake pad 140 to generate an electrical signal, and the reset detector is electrically connected to an external controller, so that the reset detector can be configured as an elastic abutting member with a pressure sensor, and when the brake pad 140 is reset, the detection end of the reset detector extends into the recess.
In a preferred embodiment, resistance increasing pieces 150 are fixed to the sides of the brake pads 140 close to each other, resistance increasing grooves 151 are formed on the outer surfaces of the resistance increasing pieces 150, and magnets capable of attracting the brake pads 140 are disposed at the middle portions of the guide rails 130 in order to improve the coupling between the brake pads 140 and the guide rails 130.
The working principle is as follows: when the elevator is qualified for the next round of competitions unexpected the removal, at the initial stage, the extensible member drive jack catch 173 card is on guide rail 200, provide preliminary braking for the elevator by jack catch 173 chucking on guide rail 200, along with the continuation removal of elevator, jack catch 173 drives the flexible portion and deflects certain angle along the hinged end of extensible member, thereby drive brake block 140 and slide, thereby utilize latch block 140 to realize further locking, wherein, when brake block 140 along guide slide rail 130 rebound, brake block 140 uses first inclined plane as the slip track, when brake block 140 moves down along guide slide rail 130, brake block 140 uses the second inclined plane as the slip track, after the hidden danger contacts, reset can.
Example 4: fig. 11 to 14, which are different from embodiment 3 in that the telescopic member is a special-shaped electromagnet, the special-shaped electromagnet includes at least a stator 161, a mover 162, a power spring 163, a limiting rod 164, and a hinge rod 165, wherein the stator 161 is fixed on the mounting frame 110, the mover is slidably disposed in the stator 161, one end of the mover 162 away from the stator 161 is hinged to the hinge rod 165, and the other end of the hinge rod 165 is hinged to the claw 173, so that the mover 162 slidably extends to drive the claw 173 to clamp the guide rail 200;
the outside of the hinge barrel 171 is sleeved with a power-assisted spring 163, one end of the power-assisted spring 163 abuts against the claw 173, the other end of the power-assisted spring 163 abuts against a hinge block, and the hinge block is hinged with the limit rod 164;
and, the hinge rod 165 and the stopper rod 164 are not in contact with each other.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (6)
1. An electronic safety gear for elevator braking, characterized in that: the electronic safety gear (100) is arranged on an elevator and used for performing bidirectional braking on a guide rail (200), and comprises:
the brake device comprises at least one pair of guide slide rails (130), wherein brake blocks (140) are arranged on the guide slide rails (130) in a vertically sliding manner, a gap is reserved between the two groups of brake blocks (140) and used for penetrating through a guide rail (200), and when the two groups of brake blocks (140) slide vertically along the guide slide rails (130), the two groups of brake blocks (140) can be close to each other until the two groups of brake blocks are locked on the guide rail (200), so that braking is realized; and
the brake claw (170) can be driven by the telescopic piece (160) to tightly push against the guide rail (200), and deflects relative to the telescopic piece (160) along with the accidental movement of the elevator, so that two groups of brake blocks (140) are driven to perform movement braking;
the braking jaw (170) comprises a telescopic part and a jaw (173), one end of the telescopic part is hinged to the output end of the telescopic part (160), the other end of the telescopic part is hinged to the jaw (173), and the jaw (173) at least comprises a clamping inclined surface (1733) with roughness;
the guide slide rail (130) is arranged on the base plate (120) in an adjustable and elastic manner, and the base plate (120) is fixed on the mounting frame (110);
the guide sliding rail (130) is arranged on the mounting rack (110) in a sliding manner;
moreover, the telescopic piece (160) is also fixed on the mounting frame (110);
the contactor (180) is fixed on the mounting frame (110) and positioned above the clamping jaws (173) so as to generate an electric signal through deflection and compression of the clamping jaws (173), the contactor (180) is a pressure sensor, a photoelectric sensor or a trigger switch, and the contactor (180) is electrically connected with an external controller;
the side of the brake block (140) close to the telescopic piece (160) is provided with a recess, the mounting frame (110) is provided with a reset detector corresponding to the recess, when the brake block (140) is in a non-initial state, the detection end of the reset detector is extruded by the brake block (140) to generate an electric signal, and the reset detector is electrically connected with an external controller.
2. An electronic safety gear for elevator braking according to claim 1, characterized in that: the telescopic piece is a hydraulic telescopic unit, an electric telescopic unit or a pneumatic telescopic unit.
3. An electronic safety gear for elevator braking according to claim 1, characterized in that: the guide sliding rail (130) comprises a first inclined surface (131) and second inclined surfaces (132) symmetrically arranged on two sides of the first inclined surface (131), and the inclination directions of the first inclined surface and the second inclined surface are opposite;
the brake block (140) comprises a third inclined surface (141) arranged on the first inclined surface (131) in a sliding manner, and fourth inclined surfaces (142) symmetrically arranged on two sides of the third inclined surface (141) and arranged on the second inclined surface in a sliding manner, and the inclination directions of the third inclined surface (141) and the fourth inclined surface (142) are opposite;
and a clamping piece is arranged on one side of the brake block (140) close to the brake jaw (170), so that the brake block (140) can be driven to move by the deflection action of the brake jaw (170) through the clamping piece.
4. An electronic safety gear for elevator braking according to claim 3, characterized in that: and driving rods (174) which are contacted with the clamping piece are symmetrically fixed on two sides of the clamping jaw (173).
5. An electronic safety gear for elevator braking according to claim 1, characterized in that: the deflection angle A of the telescopic part is between 0 and 45 degrees.
6. An electronic safety gear for elevator braking according to claim 1, characterized in that: resistance increasing sheets (150) are fixed on the sides, close to each other, of the brake blocks (140), and resistance increasing grooves (151) are distributed on the outer surfaces of the resistance increasing sheets (150);
and a magnet capable of adsorbing the brake block (140) is arranged in the middle of the guide slide rail (130).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011139019.6A CN112110311B (en) | 2020-10-22 | 2020-10-22 | Electronic safety tongs for elevator braking |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011139019.6A CN112110311B (en) | 2020-10-22 | 2020-10-22 | Electronic safety tongs for elevator braking |
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| CN112110311A CN112110311A (en) | 2020-12-22 |
| CN112110311B true CN112110311B (en) | 2021-12-17 |
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| CN202011139019.6A Active CN112110311B (en) | 2020-10-22 | 2020-10-22 | Electronic safety tongs for elevator braking |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112125089A (en) * | 2020-10-26 | 2020-12-25 | 苏州博量电梯科技有限公司 | Novel electronic safety tongs for elevator braking |
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| CN109132777A (en) * | 2018-11-13 | 2019-01-04 | 苏州默顿快速电梯有限公司 | A kind of safety tongs of elevator |
| CN211496493U (en) * | 2019-12-27 | 2020-09-15 | 无锡商业职业技术学院 | Bistable sensor for elevator |
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| KR20030028818A (en) * | 2001-06-29 | 2003-04-10 | 미쓰비시덴키 가부시키가이샤 | Emergency brake device of elevator |
| DE10154578B4 (en) * | 2001-11-07 | 2005-07-28 | Paley, Anatoly, Prof. | Device for emergency elevator braking |
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| US3762512A (en) * | 1971-10-29 | 1973-10-02 | Us Elevator Corp | Elevator rail grab safety apparatus |
| CN109132777A (en) * | 2018-11-13 | 2019-01-04 | 苏州默顿快速电梯有限公司 | A kind of safety tongs of elevator |
| CN211496493U (en) * | 2019-12-27 | 2020-09-15 | 无锡商业职业技术学院 | Bistable sensor for elevator |
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| CN112110311A (en) | 2020-12-22 |
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