CN209143428U - A kind of safety catch - Google Patents

Abstract

The utility model relates to a kind of safety catches, including trigger mechanism, shift mechanism, Self-resetting mechanism and electronic control unit；The trigger mechanism includes weightless trigger mechanism, electromagnetism trigger mechanism and hypervelocity trigger mechanism；The weightlessness trigger mechanism, electromagnetism trigger mechanism and hypervelocity trigger mechanism are connected with the shift mechanism, and the shift mechanism is connected with the Self-resetting mechanism, and the electromagnetism trigger mechanism is electrically connected with electronic control unit with Self-resetting mechanism.The apparatus structure is compact; occupied space is few; a variety of triggering modes ensure that elevator, and when there is exceeding the speed limit failure, there are many safeguard measures; Self-resetting mechanism automatically resets; safety coefficient is high; the safety coefficient of effective hoisting elevator operation, the substantially safety problem of solution elevator operation, are conducive to promote and apply in the market.

Description

A kind of safety catch

Technical field

The utility model relates to electrical conduction applied technical fields, and in particular to a kind of safety catch.

Background technique

Elevator safety clamp device is under the manipulation of limiter of speed, when elevator speed is more than the limitation speed of elevator governor setting It spends, or in the case where fracture and relaxation occur for suspension strop, by the urgent stop of carriage and is clamped in a kind of safety dress on guide rail It sets.It provides effective protective effect to the safe operation of elevator, is generally installed on car frame or counterweight frame.Safety tongs It is divided into one-way safety pincers and bidirectional safety tongs.

Traditional elevator safety tongs device is to be manipulated by limiter of speed and shift mechanism, when limiter of speed reaches the speed of setting When, limiter of speed triggers safety tongs shift mechanism, and then lifts safety tongs sliding wedge, makes sliding wedge clamp rail with stop sedan-chair Compartment or counterweight.Fracture can be occurred by suspension strop for limiter of speed or other reasons cause car speed to be continuously improved to reach to set Constant speed degree.Traditional elevator safety tongs device needs to be used cooperatively with overspeed preventer device and shift mechanism, it is necessary in being total to for three Under same-action, the safety of elevator just can ensure that, that there are structures is relative complex for whole system, linkage link is more, controls chain length, system Response time is long and controls risk the problems such as high.

Currently, the Chinese invention patent specification of Publication No. CN105438916A discloses mechanical automatic unlocking elevator Safety tongs, Publication No. CN104326322A Chinese invention patent specification disclose a kind of weightless safety tongs, Publication No. The Chinese utility model patent specification of CN204251108U discloses gradual weightless safety tongs, Publication No. The Chinese utility model patent specification of CN204125105U discloses instantaneous formula weightlessness safety tongs, mentions in description above The effect for triggering braking in wire rope breaking to safety tongs largely eliminates original mechanical speed limit measurement and lifting Control mechanism, so that the triggered time is short, braking process is stably and controllable, at low cost.But weightless safety tongs triggering in above-mentioned apparatus The precondition of movement must be that suspension strop disconnected rope occurs and state of weightlessness occurs just and can trigger weightless safety tongs acting, if in electricity When not occurring disconnected rope in terraced actual motion and exceeding the speed limit, elevator equally will appear fatal danger.

Since weightless safety tongs can cancel safety tongs shift mechanism, then voussoir shift mechanism must be integrated in weightless peace Full pincers itself.Weightless safety tongs is installed in carriage or the narrow hoistway of counterweight, due to limited space, safety tongs trigger action hair It must carry out resetting after life and just can be carried out braking protection next time, for carriage or counterweight after safety tongs movement in national standard Carriage or counterweight be up after up being promoted can be such that safety tongs resets, therefore trigger action occurs for weightless safety tongs The function of resetting weightless safety tongs should also be had by being promoted.And it is not directed to reset function in the prior art, influencing safety tongs just It is often used.

Summary of the invention

In order to solve the above-mentioned problems in the prior art, the utility model provides a kind of safety catch, is The system response time is short, is integrated with a variety of triggering modes, meets when elevator occurs unexpected and is able to multiple protective, can effective hoisting elevator The safety coefficient of operation.

In order to achieve the above-mentioned object of the invention, the utility model uses a kind of following technical scheme: safety catch, including Trigger mechanism, shift mechanism, Self-resetting mechanism and electronic control unit；The trigger mechanism includes weightless trigger mechanism, electromagnetism Trigger mechanism and hypervelocity trigger mechanism；The weightlessness trigger mechanism, electromagnetism trigger mechanism and hypervelocity trigger mechanism are mentioned with described Drawing mechanism is connected, and the shift mechanism is connected with the Self-resetting mechanism；The electromagnetism trigger mechanism and Self-resetting mechanism with Electronic control unit electrically connects.

As a kind of preferred embodiment of the utility model, the safety catch is installed on safety tongs ontology；It is described Shift mechanism includes that lifting plate and sliding wedge, the sliding wedge are installed on the safety tongs ontology；The lifting plate and peace Full pincers ontology junction is equipped with safety plug, and elastic element is equipped between the lifting plate and safety tongs ontology；At lift car Under hypervelocity or weightless situation, the safety plug is extracted in the trigger mechanism movement, and the lifting plate is in the elastic element Under the action of push up the sliding wedge, the sliding wedge contact and clamp rail is with stop elevator carriage.

As a kind of preferred embodiment of the utility model, the safety catch is installed on safety tongs ontology；It is described Shift mechanism includes lifting plate and sliding wedge, is connected with safety plug between the lifting plate and the safety tongs ontology；It is described It lifts plate and is equipped with wirerope, the wirerope is connected around safety tongs ontology upper end with the sliding wedge, described to mention Pulling plate is mutually linked with the sliding wedge by intermediate link wirerope；When lift car is in hypervelocity or weightless situation Under, the safety plug is extracted in the trigger mechanism movement, and the lifting plate moves downward, and then it is upward to lift the sliding wedge Moving contact and clamp rail are with stop elevator carriage.

As a kind of preferred embodiment of the utility model, the lifting plate and safety tongs ontology corresponding section are equipped with and protect Dangerous pin hole, the safety plug are arranged in the breaking pin hole.

As a kind of preferred embodiment of the utility model, the weightlessness trigger mechanism includes pouring weight, electromagnetic core and compression Spring；The pouring weight is connected with the safety plug, and the pouring weight is in the compressed spring under elevator normal operating condition Confined state, the electromagnetic core are installed between the pouring weight and the compressed spring；It is described when lift car weightlessness Electromagnetic core jacks up the pouring weight under the action of compressed spring, and the pouring weight drives safety plug around the first pivot point It is separated from the safety tongs ontology, and then triggers the shift mechanism and realize braking.

As a kind of preferred embodiment of the utility model, the electromagnetism trigger mechanism includes pouring weight, electromagnetic core and compression Spring；The pouring weight is connected with the safety plug, and the pouring weight makes the compressed spring be in confined state, the electromagnet Core is installed between the pouring weight and the compressed spring；When the electromagnetic core is in energized state, the electromagnetic core The pouring weight is jacked up under electromagnetic force, the pouring weight drives safety plug from the safety tongs ontology around the first pivot point Upper separation, and then trigger the shift mechanism and realize braking.

As a kind of preferred embodiment of the utility model, the hypervelocity trigger mechanism includes pouring weight and shaft, the shaft It is arranged in push-plate, the push-plate abuts the pouring weight；The shaft is equipped with compressed spring, uniformly set in the shaft two or Two or more whipping devices, two or two or more whipping devices are respectively arranged on the circumference of the shaft；The whipping device packet It includes connecting lever and gets rid of block, be rotatably connected among connecting lever by pin shaft, the block that gets rid of is installed on described connecting lever one end；The connecting lever is another One end abuts the push-plate；The speed of service of the spindle speed response lift car relative to guide rail；It is described under unusual condition Connecting lever is swung out under the action of getting rid of block far from shaft, and the connecting lever pushing tow plays push-plate, and the push-plate pushing tow lifting piece is described Pouring weight drives safety plug to separate from safety tongs ontology around the first pivot point, and then triggers the shift mechanism and realize system It is dynamic.

As a kind of preferred embodiment of the utility model, the Self-resetting mechanism includes swing arm cam and driving device；Institute It states driving device to drive the swing arm cam rotation and the lifting plate is pushed back the state to before triggering, the safety plug latching mentions Pulling plate completes reseting procedure.

As a kind of preferred embodiment of the utility model, the safety plug is set to the lifting plate upper end.

As a kind of preferred embodiment of the utility model, the safety plug is set to the lifting plate lower end.

Compared with prior art, the utility model has the beneficial effects that the safety catch in the utility model, the dress Set compact-sized, occupied space is few, passes through integration trigger mechanism, shift mechanism, Self-resetting on conventional security clamp brake device Mechanism, a variety of triggering modes ensure that elevator when there is exceeding the speed limit failure there are many safeguard measure, traditional elevator is usually adopted It is linked with shift mechanism and limiter of speed, be servo-actuated according to the height setting wirerope of floor and tensioning wheel is needed to carry out wirerope Tensioning, structure is cumbersome in the process, the response time is long, and integrated shift mechanism solves the problems, such as this, and is using There is apparent advantage in cost, be also integrated with Self-resetting while shift mechanism is integrated into safety catch in the present apparatus Mechanism does not need to be manually entered elevator shaft progress hand-reset, and safety coefficient is high, the more traditional peace of entire safety catch Full pincers are compared, and cost has more advantage, and system response time is short, is integrated with a variety of triggering modes, are met when elevator occurs unexpected and are obtained With multiple protective, can effective hoisting elevator operation safety coefficient, the substantially safety problem of solution elevator operation is conducive to this Safety catch is promoted and is applied in the market.

Detailed description of the invention

Fig. 1 is the theory structure schematic diagram of safety catch in embodiment；

Fig. 2 is the main view of stretching structure in safety catch in embodiment；

Fig. 3 is the left view of stretching structure in safety catch in embodiment；

Fig. 4 is the rearview of stretching structure in safety catch in embodiment；

Fig. 5 is the perspective view of stretching structure in safety catch in embodiment；

Fig. 6 is the scheme of installation for lifting plate and safety plug in embodiment in safety catch；

Fig. 7 is the scheme of installation for lifting plate and safety plug in embodiment in safety catch；

Fig. 8 is the scheme of installation for lifting plate and safety plug in embodiment in safety catch；

Fig. 9 is the structural schematic diagram of weightless trigger mechanism in safety catch in embodiment；

Figure 10 is the structural schematic diagram of weightless trigger mechanism in safety catch in embodiment；

Figure 11 is the structural schematic diagram of hypervelocity trigger mechanism in safety catch in embodiment；

Figure 12 is the structural schematic diagram of hypervelocity trigger mechanism in safety catch in embodiment；

Figure 13 is the structural schematic diagram for installing Self-resetting mechanism in embodiment in safety catch.

Appended drawing reference: 11, weightless trigger mechanism, 11-6, pouring weight；11-7, compressed spring；11-8, electromagnetic core；11-9, Electromagnet casing；12, electromagnetism trigger mechanism；13, exceed the speed limit trigger mechanism；13-11, push-plate；13-12, connecting lever；13-13, shaft； 13-130, second point of rotation；13-14, block is got rid of；2, shift mechanism；2-1, elastic element；2-2, lifting plate；2-3 safety plug；2- 4, safety tongs ontology；2-5, sliding wedge；2-6, wedge groove；3, Self-resetting mechanism；3-14, swing arm cam；3-15, driving dress It sets；4, electronic control unit；6-1, first point of rotation.

Specific embodiment

It elaborates with reference to the accompanying drawing to the utility model embodiment.

Embodiment: as shown in figure 1 to figure 13, safety catch, including trigger mechanism, shift mechanism 2, Self-resetting mechanism 3 and electronic control unit 4, above-mentioned trigger mechanism includes weightless trigger mechanism 11, electromagnetism trigger mechanism 12 and hypervelocity trigger mechanism 13, above-mentioned weightlessness trigger mechanism 11, electromagnetism trigger mechanism 12 and hypervelocity trigger mechanism 13 are connected with above-mentioned shift mechanism 2, on Shift mechanism 2 is stated to be connected with above-mentioned Self-resetting mechanism 3；Electromagnetism trigger mechanism 12 and Self-resetting mechanism 3 with electronic control unit 4 It electrically connects, when electronic control unit 4 exports electromagnet power on signal, triggering shift mechanism 2 is acted, above-mentioned shift mechanism 2 After movement, weightless trigger mechanism 11, hypervelocity trigger mechanism 13 or electromagnetism trigger mechanism 12 are resetted, electronic control unit 4 is existing Some electric life controllers.

In order to keep the brake device structure compact, the occupancy to ele-vator shaft spaces is reduced, and making for elevator is effectively ensured With effect, above-mentioned safety catch is mounted on safety tongs ontology 2-4.

The working principle of safety catch in the present embodiment is: when lift car run it is when in an abnormal state, lead to It crosses trigger mechanism and abnormal signal is passed into shift mechanism 2, shift mechanism 2 is realized lift car and braked, when lift car is different When normal situation releases, then shift mechanism is restored to by the state before trigger mechanism triggering by Self-resetting mechanism, is somebody's turn to do with realizing The purpose of safety catch.

As it can be seen that shift mechanism 2 is the intermediate link of safety catch in the present embodiment, therefore it has in use Play the role of very important.

As shown in Fig. 2, shift mechanism 2 includes lifting plate 2-2 and sliding wedge 2-5, lifting plate 2-2 passes through safety plug 2-3 It is fixedly connected on safety tongs ontology 2-4, sliding wedge 2-5 can be slidably mounted on safety tongs ontology 2-4, above-mentioned lifting plate The elastic element 2-1 with accumulation of energy effect for being tensioned lifting plate 2-2, elasticity member are equipped between 2-2 and safety tongs ontology 2-4 Part 2-1 can be spiral compression spring, extension spring or torsional spring etc. can also be used to realize, the main work of elastic element 2-1 With being to provide upward thrust for lifting plate 2-2, i.e. lifting plate 2-2 is moved upwards using the elastic potential energy of elastic element 2-1, bullet Property element 2-1 main function be that upward thrust is provided for lifting plate 2-2, i.e., lifting plate 2-2 utilizes elastic element 2-1's Elastic potential energy moves upwards.

Under lift car normal operational condition, above-mentioned elastic element 2-1 is in compressive state, when lift car is in hypervelocity Or when under weightless situation, above-mentioned safety plug 2-3 is extracted in above-mentioned trigger mechanism movement, and above-mentioned lifting plate 2-2 is in above-mentioned elasticity member Above-mentioned sliding wedge 2-5 is lifted under the action of part 2-1 upwards, and then makes that above-mentioned sliding wedge 2-5 is contacted and clamp rail is to make Stop lift car.

Lifting plate 2-2 in the present embodiment up pushes sliding wedge 2-5 from the bottom sliding wedge 2-5, corresponds , the upper end that safety plug 2-3 can be arranged in above-mentioned lifting plate 2-2 limits above-mentioned lifting plate 2-2 and moves up, to guarantee electricity The normal use of ladder.

In the present embodiment can also using wirerope hold sliding wedge 2-5 at the top of, then pass around caliper 2-4 again with lifting Plate 2-2 connection, when lifting plate 2-2 is moved down, the wirerope by being located at intermediate link pulls up sliding wedge 2-5 It rises, realizes and the stop of lift car is acted, it is corresponding, above-mentioned safety plug 2-3 is arranged in above-mentioned lifting plate 2-2's Lower end limits above-mentioned lifting plate 2-2 and moves down, to guarantee the normal use of elevator.

It is corresponding on safety tongs ontology 2-4 and position on above-mentioned lifting plate 2-2 in order to facilitate the installation of safety plug 2-3 Place is equipped with breaking pin hole, and above-mentioned safety plug 2-3 is arranged in above-mentioned breaking pin hole.

The wedge groove 2-6 slided for sliding wedge 2-5, the end face of sliding wedge 2-5 and peace are formed on safety tongs ontology 2-4 The surface of full pincers ontology 2-4 is almost generally aligned in the same plane, and is kept the safety catch compact-sized, is reduced the occupancy to space, And sliding wedge 2-5 is avoided to cause to wear to other equipment or component, wedge groove 2-6 is almost in " V " type, so as to unusual condition When sliding wedge 2-5 contact and clamp rail with stop elevator carriage.

As shown in Figure 9 and Figure 10, above-mentioned weightless trigger mechanism 11 includes pouring weight 11-6, electromagnetic core 11-8 and compressed spring 11-7, above-mentioned pouring weight 11-6 make above-mentioned compressed spring 11-7 be in confined state, safety plug 2-3 under self gravitation effect Lockking lifting plate 2-2 makes sliding wedge 2-5 be in safety tongs ontology 2-4 lowermost end, and so that safety plug 2-3 is connected to pouring weight just Between 11-6 and lifting plate 2-2, above-mentioned pouring weight 11-6 is connected with above-mentioned safety plug 2-3, and above-mentioned electromagnetic core 11-8 is mounted on It states between pouring weight 11-6 and above-mentioned compressed spring 11-7.

When disconnected rope state of weightlessness occurs in elevator device, the own wt for being equivalent to pouring weight 11-6 mitigates, compressed spring 11- 7 release compression energies are to jack up electromagnetic core 11-8, and electromagnetic core 11-8 jacks up pouring weight 11-6 again, and pouring weight 11-6 is around the first rotation Point 6-1 turns an angle and safety plug 2-3 movement is driven to separate from safety tongs ontology 2-4, and then triggers above-mentioned pulling machine Lifting plate 2-2 in structure 2 is moved up, and then sliding wedge 2-5 is pushed to move up clamp rail, and stop Carriage or counterweight realize braking, and the state after the weightless triggering of trigger mechanism 11 is as shown in Figure 10.

It is covered with electromagnet casing 11-9 outside electromagnetic core 11-8, electromagnet casing 11-9 is fixedly mounted on safety tongs ontology On 2-4, electromagnetic core 11-8 inside effective protection guarantees the service life of electromagnetic core 11-8, reduces use cost, will Electromagnet casing 11-9 is fixedly mounted on safety tongs sheet, realizes on 2-4 and integrates weightlessness trigger mechanism 11 on safety tongs ontology 2-4 This goal of the invention keeps the safety catch of the present embodiment compact-sized, rationally distributed.

When electronic control unit 4 exports electromagnetic core 11-8 power on signal, executes electromagnetism trigger mechanism 12 and act, work as electromagnetism When iron core 11-8 is powered, electromagnetic core 11-8 jacks up pouring weight 11-6, and compressed spring 11-7 is in always in this action process is pressed Contracting state makes pouring weight 11-6 turn an angle around the first point of rotation 6-1 and then extracts safety plug 2-3 after same electromagnetism triggering, Lifting plate 2-2 is lifted up sliding wedge 2-5, the sliding wedge 2-5 in safety catch under the action of elastic element 2-1 Clamp rail and stop elevator carriage.

After weightless trigger mechanism 11 acts, the lifting plate 2-2 of safety catch is returned to initially by Self-resetting mechanism 3 Position, pouring weight 11-6 pushes compressed spring 11-7 under the action of own wt at the same time, and pouring weight 11-6 is around first point of rotation It drives safety plug 2-3 that safety plug 2-3 is made to lock lifting plate 2-2 again while 6-1 rotates, completes reseting procedure.

After electromagnetism trigger mechanism 12 acts, then after lifting plate 2-2 is returned to initial position by Self-resetting mechanism 3, to electricity Magnet signal sucks back electromagnetic core 11-8, and pouring weight 11-6 loses the direct return of support and drives safety plug 2-3 around the first rotation Point 6-1 rotation makes safety plug 2-3 lock lifting plate 2-2 again, completes reseting procedure.

Trigger mechanism 13 exceed the speed limit mainly for when elevator exceeds the speed limit, elevator car speed is getting faster, but is accelerated Degree value is less but maintenance is constant, that is, uniformly accelerated motion occurs, under such conditions if clamped without limiter of speed conventional security It can not will act always, traditional limiter of speed is eliminated in the present embodiment, the principle of limiter of speed is only integrated into safety system In dynamic device, saved manufacturing cost, hypervelocity trigger mechanism 13 as is illustrated by figs. 11 and 12, mainly include compressed spring 11-7, Push-plate 13-11, shaft 13-13 and whipping device are uniformly arranged two pieces or the above whipping device of two pieces on shaft 13-13 circumference, Two or two whipping devices are separately mounted on the circumference of shaft 13-13, and whipping device includes connecting lever 13-12 and gets rid of block 13- The circumference of 14, shaft 13-13 i.e. using shaft 13-13 as the center of circle, using connecting lever 13-12 as radius, hypervelocity trigger mechanism 13 need by Lift car is introduced into the shaft 13-13 of mechanism relative to the speed of service of guide rail, the rotation speed and electricity of shaft 13-13 Terraced carriage is consistent relative to the speed that guide rail is run, with centrifugal principle as speed gets rid of block 13-14 further away from shaft 13- fastlyer 13 centers, push-plate 13-11 jacked it is higher, by adjust compressed spring 11-7 can preset hypervelocity trigger mechanism 13 Triggering speed.

As shown in figure 11, elevator device is under normal operating condition, is not above mechanism setting in elevator speed When triggering speed, push-plate 13-11 can not rise to certain altitude to jack up pouring weight 11-6, when lift car downstream rate increasingly The triggering speed for reaching mechanism sets fastly is got rid of block 13-14 and is being got rid of under the influence of centrifugal force far from shaft 13-13, connecting lever 13-12 It is swung out around the second point of rotation 13-130 far from shaft 13-13 under the action of block 13-14.

As shown in figure 12, connecting lever 13-12 jacks up push-plate 13-11, and push-plate 13-11 jacks up pouring weight 11-6 again, pouring weight 11-6 around First point of rotation 6-1 turns an angle and safety plug 2-3 is driven to act, and the state after triggering is as shown in figure 12.Pouring weight 11-6 It turns an angle and then extracts safety plug 2-3, lifting plate 2-2 is lifted up sliding wedge under the action of elastic element 2-1 2-5, sliding wedge 2-5 clamp rail and stop elevator carriage in safety catch.

After the trigger mechanism 13 that exceeds the speed limit acts, the same lifting plate 2-2 by 3 safety catch of Self-resetting mechanism is returned to just Beginning position, exceed the speed limit trigger mechanism 13 in get rid of block 13-14 self weight and compressed spring 11-7 under the action of push-plate 13-11 return to just Beginning position, while pouring weight 11-6 compresses compressed spring 11-7 under the action of own wt, pouring weight 11-6 is around the first point of rotation 6-1 It drives safety plug 2-3 that safety plug 2-3 is made to lock lifting plate 2-2 again while rotation, completes reseting procedure.

Weightless trigger mechanism 11, electromagnetism trigger mechanism 12 and hypervelocity triggering machine in safety catch in the present embodiment 13 3 kinds of triggering modes of structure respectively between connected each other independently of each other further through pouring weight 11-6, but be all by extract safety plug 2-3 simultaneously jacks up lifting plate 2-2 under the action of elastic element 2-1 to drive sliding wedge 2-5 to rise, and makes sliding wedge 2-5 It is contacted with cage guide and clamp rail is to stop elevator carriage.And the main function of Self-resetting mechanism 3 is will to lift plate 2-2 The state before trigger mechanism movement is returned to, lifting plate 2-2, which will return to initial position, needs power source.

As shown in figure 13, the Self-resetting mechanism 3 in the present embodiment includes swing arm cam 3-14 and driving device 3-15, triggering Lifting plate 2-2 rises to highest point position under the action of elastic element 2-1 after mechanism triggering, has lifted sliding wedge 2-5, from When reset, need outside source that signal is passed to driving device 3-15, driving device 3-15 drives swing arm cam 3-14 again Rotation, final swing arm cam 14 will lift plate 2 and be pressed back into triggering front position, and safety plug 2-3 locks lifting plate 2-2 again, completes Self-resetting process.

Driving device 3-15 in the present embodiment uses motor driven, and hydraulic, pneumatic and electric pushrod etc. also can be selected Other driving methods are driven, and can be achieved lifting plate 2-2 returning to initial position.

Safety catch in the present embodiment passes through integration trigger mechanism, lifting on conventional security clamp brake device Mechanism 2, Self-resetting mechanism 3, a variety of triggering modes ensure that the safe operation of elevator, shorten system response time, pass System elevator generallys use shift mechanism and limiter of speed links, and is servo-actuated according to the height setting wirerope of floor and needs tensioning wheel Wirerope is tensioned, structure is cumbersome in the process, the response time is long, and integrated shift mechanism 2 efficiently solves this Problem, and there is apparent advantage in use cost, while shift mechanism 2 is integrated into safety catch in the present apparatus It is also integrated with Self-resetting mechanism 3, does not need to be manually entered elevator shaft progress hand-reset, safety coefficient is high, entire safety system The more traditional safety tongs of dynamic device is compared, and cost has more advantage, and system response time is short, is integrated with a variety of triggering modes, is met Elevator is able to multiple protective when occurring unexpected, can effective hoisting elevator operation safety coefficient, substantially solution elevator operation Safety problem is conducive to the safety catch and promotes and apply in the market.

The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model；Cause This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with features of novelty.

Although appended drawing reference in figure is used more herein: 11, weightless trigger mechanism, 11-6, pouring weight；11-7, compression Spring；11-8, electromagnetic core；11-9, electromagnet casing；12, electromagnetism trigger mechanism；13, exceed the speed limit trigger mechanism；13-11, it pushes away Disk；13-12, connecting lever；13-13, shaft；13-130, second point of rotation；13-14, block is got rid of；2, shift mechanism；2-1, elasticity member Part；2-2, lifting plate；2-3 safety plug；2-4, safety tongs ontology；2-5, sliding wedge；2-6, wedge groove；3, Self-resetting mechanism； 3-14, swing arm cam；3-15, driving device；4, electronic control unit；The terms such as 6-1, first point of rotation, but be not precluded and make A possibility that with other terms.The use of these terms is merely for the convenience of describing and explaining the nature of the invention； It is contrary to the spirit of the present invention to interpret them as any one of the additional limitations.

Claims (10)

1. a kind of safety catch, it is characterised in that: including trigger mechanism, shift mechanism (2), Self-resetting mechanism (3) and electricity Sub-control unit (4)；The trigger mechanism includes weightless trigger mechanism (11), electromagnetism trigger mechanism (12) and hypervelocity trigger mechanism (13)；It is described weightlessness trigger mechanism (11), electromagnetism trigger mechanism (12) and hypervelocity trigger mechanism (13) with the shift mechanism (2) it is connected, the shift mechanism (2) is connected with the Self-resetting mechanism (3)；The electromagnetism trigger mechanism (12) and Self-resetting machine Structure (3) is electrically connected with electronic control unit (4).

2. safety catch according to claim 1, it is characterised in that: the safety catch is installed on safety It clamps ontology (2-4)；The shift mechanism (2) includes lifting plate (2-2) and sliding wedge (2-5), sliding wedge (2-5) peace Loaded on the safety tongs ontology (2-4)；The lifting plate (2-2) and the safety tongs ontology junction (2-4) are equipped with safety plug (2- 3), elastic element (2-1) is equipped between the lifting plate (2-2) and safety tongs ontology (2-4)；When lift car be in hypervelocity or Under person's weightlessness situation, the safety plug (2-3) is extracted in the trigger mechanism movement, and the lifting plate (2-2) is in the elasticity member It is pushed up under the action of part (2-1) sliding wedge (2-5), the sliding wedge (2-5) contacts and clamp rail is to make Stop lift car.

3. safety catch according to claim 1, it is characterised in that: the safety catch is installed on safety It clamps ontology (2-4)；The shift mechanism (2) includes lifting plate (2-2) and sliding wedge (2-5), the lifting plate (2-2) and institute It states and is connected with safety plug (2-3) between safety tongs ontology (2-4)；The lifting plate (2-2) is equipped with wirerope, the wirerope It is connected around the safety tongs ontology upper end (2-4) with the sliding wedge (2-5), the lifting plate (2-2) and the sliding Voussoir (2-5) is mutually linked by intermediate link wirerope；When lift car is under hypervelocity or weightless situation, the triggering Mechanism action extracts the safety plug (2-3), and the lifting plate (2-2) moves downward, and then lifts the sliding wedge (2-5) Contact and clamp rail are moved upwards with stop elevator carriage.

4. safety catch according to claim 2 or 3, it is characterised in that: the lifting plate (2-2) and the safety It clamps the ontology corresponding section (2-4) and is equipped with breaking pin hole, the safety plug (2-3) is arranged in the breaking pin hole.

5. safety catch according to claim 2 or 3, it is characterised in that: it is described weightlessness trigger mechanism (11) include Pouring weight (11-6), electromagnetic core (11-8) and compressed spring (11-7)；The pouring weight (11-6) and the safety plug (2-3) phase Even, the pouring weight (11-6) makes the compressed spring (11-7) be in confined state under elevator normal operating condition, described Electromagnetic core (11-8) is installed between the pouring weight (11-6) and the compressed spring (11-7)；When lift car weightlessness, The electromagnetic core (11-8) jacks up the pouring weight (11-6) under the action of the compressed spring (11-7), the pouring weight (11- 6) rotating around first point of rotation (6-1) drives safety plug (2-3) to separate from the safety tongs ontology (2-4), and then triggers institute It states shift mechanism (2) and realizes braking.

6. safety catch according to claim 2 or 3, it is characterised in that: the electromagnetism trigger mechanism (12) includes Pouring weight (11-6), electromagnetic core (11-8) and compressed spring (11-7)；The pouring weight (11-6) and the safety plug (2-3) phase Even, the pouring weight (11-6) makes the compressed spring (11-7) be in confined state, and the electromagnetic core (11-8) is installed on Between the pouring weight (11-6) and the compressed spring (11-7)；When the electromagnetic core (11-8) is in energized state, institute It states electromagnetic core (11-8) to jack up under the action of electromagnetic force the pouring weight (11-6), the pouring weight (11-6) is around first point of rotation (6-1) rotation drives safety plug (2-3) to separate from the safety tongs ontology (2-4), and then it is real to trigger the shift mechanism (2) Now brake.

7. safety catch according to claim 2 or 3, it is characterised in that: the hypervelocity trigger mechanism (13) includes Pouring weight (11-6) and shaft (13-13), the shaft (13-13) are arranged in push-plate (13-11), and the push-plate (13-11) abuts The pouring weight (11-6)；The shaft (13-13) is equipped with compressed spring (11-7), uniformly sets two on the shaft (13-13) Part or two or more whipping device, two or two or more whipping devices are respectively arranged on the circumference of the shaft (13-13)；It is described Whipping device includes connecting lever (13-12) and gets rid of block (13-14), is rotatably connected among connecting lever (13-12) by pin shaft, described to get rid of Block (13-14) is installed on the one end the connecting lever (13-12)；Connecting lever (13-12) other end abuts the push-plate (13-11)； The speed of service of shaft (13-13) the speed responsive lift car relative to guide rail；Under unusual condition, the connecting lever (13- 12) it is swung out under the action of getting rid of block (13-14) far from shaft (13-13), connecting lever (13-12) pushing tow plays push-plate (13- 11), push-plate (13-11) the pushing tow lifting piece (11-6), the pouring weight (11-6) rotate to drive around first point of rotation (6-1) and protect Danger pin (2-3) is separated from safety tongs ontology (2-4), and then is triggered the shift mechanism (2) and realized braking.

8. safety catch according to claim 7, it is characterised in that: the Self-resetting mechanism (3) includes that swing arm is convex Take turns (3-14) and driving device (3-15)；The driving device (3-15) drives swing arm cam (3-14) rotation and will be described Lifting plate (2-2) pushes back the state to before triggering, and the safety plug (2-3) locks lifting plate (2-2), completes reseting procedure.

9. a kind of safety catch according to claim 3, it is characterised in that: the safety plug (2-3) is set to described Lift the upper end plate (2-2).

10. a kind of safety catch according to claim 3, it is characterised in that: the safety plug (2-3) is set to described Lift the lower end plate (2-2).