CN109650212A - Safety guard, elevator security control method and elevator - Google Patents
Safety guard, elevator security control method and elevator Download PDFInfo
- Publication number
- CN109650212A CN109650212A CN201910051611.1A CN201910051611A CN109650212A CN 109650212 A CN109650212 A CN 109650212A CN 201910051611 A CN201910051611 A CN 201910051611A CN 109650212 A CN109650212 A CN 109650212A
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- brake
- stressed member
- elevator
- wind pressure
- carriage
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Classifications
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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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
-
- 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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
-
- 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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The present invention relates to a kind of safety guard, elevator security control method and elevator, safety guard includes: stressed member, and stressed member is for being arranged in carriage or counterweight frame, and stressed member is for experiencing wind pressure；And trigger element, trigger element are used to brake elevator according to impact effect Triggering Control System driving brake assemblies of the wind pressure to the stressed member.After above-mentioned safety guard is mounted in carriage or counterweight frame; stressed member face wind come to; when the elevator is run; the wind pressure size being subject to due to stressed member and the speed of service of carriage it is square directly proportional; only need to know that wind pressure to the impact effect of the stressed member, that is, can determine whether the speed of service of carriage.In this way, trigger element brakes elevator according to impact effect Triggering Control System driving brake assemblies of the wind pressure to stressed member, it is ensured that the safety of elevator.
Description
Technical field
The present invention relates to elevator technology field, more particularly to a kind of safety guard, elevator security control method and
Elevator.
Background technique
At present, it is common to use overspeed preventer device provides safeguard protection for elevator.Speed limiter wire rope is run with lift car,
And limiter of speed is driven to rotate, when revolving speed is more than setting value, the movement of triggering electric switch, makes braking of brake elevator.
The set overspeed preventer device includes limiter of speed, tensioning apparatus and speed limiter wire rope, and structure is complicated for package unit, cost
Height, and it is higher with the location of elevator, and speed limiter wire rope is longer, and limiter of speed is easy to cause because of speed limiter wire rope shaking
Movement error.
Summary of the invention
Based on this, it is necessary to provide a kind of safety guard, elevator security control method and elevator, structure is simple, can
By property height.
Its technical solution is as follows:
A kind of safety guard, comprising: stressed member, the stressed member is for being arranged in carriage or counterweight frame, and institute
Stressed member is stated for experiencing wind pressure；And trigger element, the trigger element are used for according to wind pressure to the shadow of the stressed member
It rings effect and sends signal to control system, control system is used to drive brake assemblies to brake elevator according to the signal.
After above-mentioned safety guard is mounted in carriage or counterweight frame, stressed member faces the coming to working as elevator of wind
When operation, the wind pressure size that is subject to due to stressed member and the speed of service of carriage it is square directly proportional, it is only necessary to know wind pressure
Power can determine whether the speed of service of carriage to the impact effect of the stressed member.In this way, trigger element can be according to wind pressure pair
The impact effect of the stressed member sends signal to control system, and control system can drive brake assemblies pair according to the signal
Elevator is braked, and guarantees the safety of elevator.Above-mentioned safety guard need to be only mounted below carriage or counterweight frame, knot
Structure is simple, installation convenience, and the variation of the variation monitoring elevator speed by wind pressure suffered by stressed member, not by elevator its
The influence of his part, securely and reliably.
Further, the trigger element is pressure detecting element, and the pressure detecting element is set to the stressed member
On, the pressure detecting element is used for for detecting the wind pressure force value that the stressed member is subject to, control system according to the wind pressure
Force value drives the brake assemblies to brake elevator.
It further, further include elastic component and mounting rack, the mounting rack is described for being arranged in carriage or counterweight frame
One end of elastic component is abutted with the mounting rack, and the other end of the elastic component is abutted with the stressed member, the trigger element
For displacement detecting element, the displacement detecting element is set on the mounting rack, and the displacement detecting element is for detecting institute
The displacement of stressed member is stated, control system is used to drive the brake assemblies to brake elevator according to the displacement.
It further, further include elastic component and mounting rack, the mounting rack is described for being arranged in carriage or counterweight frame
One end of elastic component is abutted with the mounting rack, and the other end of the elastic component is abutted with the stressed member, the trigger element
For trigger, the trigger is set on the mounting rack, and the trigger is set to the stressed member close to the bullet
Property the side of part and opposite with the stressed member, when the trigger and the stressed member contact, control system is for driving
The brake assemblies brake elevator.
It further, further include dynamic clamping head and quiet clamping head, the trigger includes the first contact and the second contact, and the elasticity is multiple
One end of position part is connect with the mounting rack, and the other end of the dynamic clamping head and quiet clamping head is connect with first contact, when the bullet
When property return unit is in first state, first contact is located at second contact close to the side of the stressed member, works as institute
When stating dynamic clamping head and quiet clamping head and being in the second state, the stressed member can be contacted with second contact.
The technical program additionally provides a kind of elevator security control method, comprising:
Brake signal is generated according to impact effect of the wind pressure to stressed member；
Brake assemblies are driven to brake elevator according to the brake signal.
In above-mentioned elevator security control method, when the elevator is run, the wind pressure size and sedan-chair being subject to due to stressed member
The speed of service in compartment it is square directly proportional, it is only necessary to know that wind pressure to the impact effect of the stressed member, that is, can determine whether carriage
The speed of service.In this way, control system can generate brake signal to the impact effect of stressed member according to wind pressure, then root again
Elevator is braked according to brake signal driving brake assemblies, guarantees the safety of elevator.
Further, in described the step of generating brake signal according to impact effect of the wind pressure to stressed member, comprising:
The wind pressure force value that the stressed member is subject to is detected, when the wind pressure force value is greater than preset value, generates the braking
Signal.
Further, the brake assemblies include brake and safety tongs, and the preset value includes the first preset value and the
Two preset values, the brake signal include the first brake signal and the second brake signal；
When the wind pressure force value is greater than first preset value, first brake signal is generated and according to described the
One brake signal drives the brake to brake elevator, raw when the wind pressure force value is greater than second preset value
The safety tongs is driven to brake elevator at second brake signal and according to second brake signal.
Further, in described the step of generating brake signal according to impact effect of the wind pressure to stressed member, comprising:
The displacement for detecting the stressed member generates the brake signal when the displacement is greater than preset value.
Further, the brake assemblies include brake and safety tongs, and the preset value includes the first preset value and the
Two preset values, the brake signal include the first brake signal and the second brake signal；
When the displacement is greater than first preset value, first brake signal is generated and according to described first
Brake signal drives the brake to brake elevator, when the displacement is greater than second preset value, generates institute
It states the second brake signal and drives the safety tongs to brake elevator according to two brake signal.
Further, in described the step of generating brake signal according to impact effect of the wind pressure to stressed member, comprising:
When the stressed member and trigger contact, the brake signal is generated.
Further, the brake assemblies include brake and safety tongs, and the brake signal includes the first brake signal
With the second brake signal；
When the first contact of the stressed member and the contactor contacts, first brake signal and basis are generated
One brake signal drives the brake to brake elevator, when the second contact of the stressed member and the contactor
When contact, generates second brake signal and drive the safety tongs to brake elevator according to two brake signal.
The application also provides a kind of elevator, comprising: two safety guards as described above；Carriage, one of institute
State the bottom that safety guard is set to the carriage；The counterweight frame being connect with the carriage, another described installation protection
Device is set to the bottom of the counterweight frame.
Carriage and counterweight frame pass through hoist ropes respectively and are connected to traction machine two sides, and the bottom of carriage and the bottom of counterweight frame are equal
It is provided with above-mentioned safety guard, in this way, no matter carriage is can root in propradation or decline state control system
It is monitored according to the speed of service of the safety guard to carriage.
Detailed description of the invention
Fig. 1 is the usage scenario structural schematic diagram of safety guard described in one embodiment of the invention；
Fig. 2 is the structural schematic diagram of safety guard described in the embodiment of the present invention one；
Fig. 3 is the flow diagram of elevator security control method described in the embodiment of the present invention one；
Fig. 4 is the structural schematic diagram of safety guard described in the embodiment of the present invention two；
Fig. 5 is the flow diagram of elevator security control method described in the embodiment of the present invention two；
Fig. 6 is the structural schematic diagram of safety guard described in the embodiment of the present invention three；
Fig. 7 is the flow diagram of elevator security control method described in the embodiment of the present invention three.
Description of symbols:
10, safety guard, 20, carriage, 30, counterweight frame, 40, traction machine, 100, mounting rack, 200, stressed member,
300, pressure detecting element, 400, elastic component, 500, displacement detecting element, the 610, first contact, the 620, second contact, 700, bullet
Property return unit.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, below in conjunction with attached drawing and specific embodiment party
Formula, the present invention is further described in detail.It should be understood that the specific embodiments described herein are only to solve
The present invention is released, and the scope of protection of the present invention is not limited.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.
Heretofore described " first ", " second " do not represent specific quantity and sequence, are only used for the differentiation of title.
As shown in Figure 1, Figure 2, shown in Fig. 4, Fig. 6, the present invention relates to a kind of safety guards 10, comprising: stressed member 200, by
Power part 200 is set on carriage 20 or counterweight frame 30, and stressed member 200 is for experiencing wind pressure；And trigger element, trigger element
For being braked according to impact effect Triggering Control System driving brake assemblies of the wind pressure to stressed member 200 to elevator.
After above-mentioned safety guard 10 is mounted in carriage 20 or counterweight frame 30, stressed member 200 faces coming for wind
To, when the elevator is run, the wind pressure size being subject to due to stressed member 200 and the speed of service of carriage 20 it is square directly proportional,
Only need to know that wind pressure to the impact effect of the stressed member 200, that is, can determine whether the speed of service of carriage 20.In this way, triggering
Element can send signal to control system according to impact effect of the wind pressure to the stressed member 200, and control system can root
Elevator is braked according to signal driving brake assemblies, guarantees the safety of elevator.Above-mentioned safety guard 10
It need to be mounted on 30 lower section of carriage 20 or counterweight frame, structure is simple, installation convenience, and passes through the change of wind pressure suffered by stressed member 200
The variation for changing monitoring elevator speed, is not influenced, securely and reliably by elevator other parts.
The invention further relates to a kind of elevator security control methods, comprising:
Brake signal is generated according to impact effect of the wind pressure to stressed member 200；
Brake assemblies are driven to brake elevator according to brake signal.
In above-mentioned elevator security control method, when the elevator is run, the wind pressure size being subject to due to stressed member 200 with
The speed of service of carriage 20 it is square directly proportional, it is only necessary to know that wind pressure to the impact effect of stressed member 200, that is, can determine whether sedan-chair
The speed of service in compartment 20.In this way, control system can generate brake signal according to impact effect of the wind pressure to stressed member 200,
Then elevator is braked further according to brake signal driving brake assemblies, guarantees the safety of elevator.
Embodiment one
As shown in Figure 1 and Figure 2, trigger element is pressure detecting element 300, and pressure detecting element 300 is set to stressed member
On 200, pressure detecting element 300 is used for for detecting the wind pressure force value that stressed member 200 is subject to, control system according to the wind pressure
Force value driving brake assemblies brake elevator.
As shown in Figure 1 and Figure 2, after above-mentioned safety guard 10 is mounted in carriage 20 or counterweight frame 30, stressed member
200 face wind come to, when the elevator is run, the speed of service of the wind pressure size and carriage 20 that are subject to due to stressed member 200
It is square directly proportional, in this way, the wind pressure force value that control system can be subject to according to stressed member 200 judges the operation speed of carriage 20
Degree.So, it is only necessary to which carriage 20 can determine whether by the size that pressure detecting element 300 detects wind pressure suffered by stressed member 200
The speed of service, if wind pressure force value suffered by stressed member 200 exceeds preset value, control system will drive brake assemblies to elevator
It is braked, to guarantee the safety of elevator.Above-mentioned 10 need of safety guard are mounted on carriage 20 or counterweight frame 30
Lower section, structure is simple, installation convenience, and the variation of the variation monitoring elevator speed by wind pressure suffered by stressed member 200,
It is not influenced by elevator other parts, securely and reliably.
Above-mentioned safety guard 10 may be mounted at the top or bottom of carriage 20, also may be mounted at counterweight frame 30
Bottom or top.
As shown in Figure 1, carriage 20 and counterweight frame 30 are connected to 40 two sides of traction machine, sedan-chair specific in the present embodiment
The bottom in compartment 20 and the bottom of counterweight frame 30 are provided with above-mentioned safety guard 10, in this way, regardless of carriage 20 is to be in
Propradation or decline state control system can be monitored according to the speed of service of the safety guard 10 to carriage 20.
As shown in Figure 2, it should be noted that protection device for installing further includes mounting rack 100, above-described installation protection
The mounting rack 100 of device is frame shape, and stressed member 200 is plate, and the periphery of stressed member 200 is fixedly connected with mounting rack 100, is pressed
Power detecting element 300 is pressure sensor, and the stress surface of stressed member 200 is arranged in pressure detecting element 300.
As shown in figure 3, an embodiment further relates to a kind of elevator security control method, according to wind pressure to stressed member 200
Impact effect the step of generating brake signal in, comprising: S110, the wind pressure force value that is subject to of detection stressed member 200 work as wind pressure
When value is greater than preset value, brake signal is generated.
As shown in Figure 1 and Figure 2, specifically, when above-mentioned safety guard 10 is mounted in carriage 20 or counterweight frame 30
Afterwards, stressed member 200 face wind come to, when the elevator is run, the wind pressure size that is subject to due to stressed member 200 and carriage 20
The speed of service it is square directly proportional, in this way, the wind pressure force value that control system can be subject to according to stressed member 200 judges carriage 20
The speed of service.So, it is only necessary to can determine whether by the size that pressure detecting element 300 detects wind pressure suffered by stressed member 200
The speed of service of carriage 20.If wind pressure force value suffered by stressed member 200 is greater than preset value, control system will generate braking letter
Number.
As shown in Figure 1 and Figure 2, specifically, if wind pressure force value suffered by stressed member 200 is greater than preset value, control system will
Brake assemblies are driven to brake elevator according to brake signal, to guarantee the safety of elevator.
More specifically, brake assemblies include brake and safety tongs, preset value includes the first preset value and the second preset value,
Brake signal includes the first brake signal and the second brake signal.
When the wind pressure force value is greater than first preset value, first brake signal is generated and according to described the
One brake signal drives the brake to brake elevator, raw when the wind pressure force value is greater than second preset value
The safety tongs is driven to brake elevator at second brake signal and according to second brake signal.
As shown in Figure 1 and Figure 2, when the speed of service of carriage 20 is excessive, so that the wind pressure force value that stressed member 200 is subject to is greater than
When the first preset value, control system generates the first driving signal and drives brake to carry out elevator according to the first driving signal
Braking, after this, if the speed of service of carriage 20 continues to increase, and when the wind pressure force value that stressed member 200 is subject to is greater than second
When preset value, control system will generate the second driving signal and drive safety tongs to carry out elevator according to the second driving signal
Braking.In this way, can be further improved the security performance of elevator.
It should be noted that above-described second preset value is greater than the first preset value.
Embodiment two
As shown in figure 4, a kind of safety guard 10 described in an embodiment, further includes elastic component 400 and mounting rack
100, mounting rack 100 is for being arranged in carriage 20 or counterweight frame 30, one end of the elastic component 400 and the mounting rack 100
It abutting, the other end of the elastic component 400 is abutted with the stressed member 200, and the trigger element is displacement detecting element 500,
The displacement detecting element 500 is set on the mounting rack 100, and the displacement detecting element 500 is for detecting the stress
The displacement of part 200, control system are used to drive the brake assemblies to brake elevator according to the displacement.
As Figure 1 and Figure 4, after above-mentioned safety guard 10 is mounted in carriage 20 or counterweight frame 30, stressed member
200 face wind come to, elastic component 400 can be squeezed after 200 stress of stressed member, be subjected to displacement, when the elevator is run, due to by
The wind pressure size that power part 200 is subject to and the speed of service of carriage 20 it is square directly proportional, in this way, control system can according to by
The displacement of power part 200 judges the speed of service of carriage 20.So, it is only necessary to which stressed member is detected by displacement detecting element 500
200 displacement is the speed of service that can determine whether carriage 20, if the displacement of stressed member 200 exceeds preset value, control system
Brake assemblies will be driven to brake elevator, to guarantee the safety of elevator.Above-mentioned 10 need of safety guard
It is mounted on 30 lower section of carriage 20 or counterweight frame, structure is simple, installation convenience, and passes through the variation of wind pressure suffered by stressed member 200
The variation for monitoring elevator speed, is not influenced, securely and reliably by elevator other parts.
Above-mentioned safety guard 10 may be mounted at the top or bottom of carriage 20, also may be mounted at counterweight frame 30
Bottom or top.
Specific in the present embodiment, carriage 20 and counterweight frame 30 are connected to 40 two sides of traction machine, the bottom of carriage 20
And the bottom of counterweight frame 30 is provided with above-mentioned safety guard 10, in this way, regardless of carriage 20 be in propradation or
Decline state control system can be monitored according to the speed of service of the safety guard 10 to carriage 20.
As shown in Figure 4, it should be noted that the mounting rack 100 of above-described protection device for installing is frame shape, stress
Part 200 is plate, and the periphery and mounting rack 100 of stressed member 200 are slided or rolled and connect, and elastic component 400 is spring, elastic slice or bullet
Property rubber etc., displacement detecting element 500 is displacement sensor, and displacement detecting element 500 is arranged on mounting rack 100, and is displaced
The length direction of detecting element 500 is consistent with the telescopic direction of elastic component 400.When elevator is static, stressed member 200 is in self weight and bullet
Under the action of property part 400, the bottom of mounting rack 100 is stopped at.200 lower section of stressed member when carriage 20 or counterweight frame 30 are run down
Bear wind pressure.When wind pressure is greater than the sum of self weight and the active force of elastic component 400 of stressed member 200, stressed member 200 is being pacified
It shelves and is begun to move up inside 100.
As shown in figure 5, an embodiment further relates to a kind of elevator security control method, it is described according to wind pressure to stressed member
200 impact effect generated in the step of brake signal, comprising: the displacement for detecting the stressed member 200, when the displacement
When greater than preset value, the brake signal is generated.
As Figure 1 and Figure 4, specifically, when above-mentioned safety guard 10 is mounted in carriage 20 or counterweight frame 30
Afterwards, stressed member 200 face wind come to, elastic component 400 can be squeezed after 200 stress of stressed member, be subjected to displacement, when elevator run
When, the wind pressure size that is subject to due to stressed member 200 and the speed of service of carriage 20 it is square directly proportional, in this way, control system
The speed of service of carriage 20 can be judged according to the displacement of stressed member 200.
Specifically, when the displacement of stressed member 200 exceeds preset value, control system will generate brake signal.
More specifically, brake assemblies include brake and safety tongs, the preset value includes that the first preset value and second are pre-
If value, the brake signal includes the first brake signal and the second brake signal.
When the wind pressure force value is greater than first preset value, first brake signal is generated and according to described the
One brake signal drives the brake to brake elevator, raw when the wind pressure force value is greater than second preset value
The safety tongs is driven to brake elevator at second brake signal and according to second brake signal.
As Figure 1 and Figure 4, wind pressure and the speed of service of carriage 20 is square directly proportional, and the speed of service of carriage 20 is got over
Greatly, the wind pressure that stressed member 200 is born is bigger, and the mobile distance of stressed member 200 is bigger.When the speed of service of carriage 20 is excessive,
When so that the displacement of stressed member 200 being greater than the first preset value, control system generates the first driving signal and according to the first driving
Signal driving brake brakes elevator, after this, if the speed of service of carriage 20 continues to increase, and works as stressed member
When 200 displacement is greater than the second preset value, control system will generate the second driving signal and be driven according to the second driving signal
Dynamic safety tongs brakes elevator, and after elevator stops, stressed member 200 is again extensive under the action of self weight and elastic component 400
Again to original position.In this way, can be further improved the security performance of elevator.
It should be noted that above-described second preset value is greater than the first preset value.
Embodiment three
As shown in fig. 6, a kind of safety guard 10 described in an embodiment, further includes elastic component 400 and mounting rack
100, mounting rack 100 is for being arranged in carriage 20 or counterweight frame 30, one end of the elastic component 400 and the mounting rack 100
It abuts, the other end of the elastic component 400 is abutted with the stressed member 200, and the trigger element is trigger, the trigger
Be set on the mounting rack 100, and the trigger be set to the stressed member 200 close to the elastic component 400 side,
And it is opposite with the stressed member 200, when the trigger is contacted with the stressed member 200, control system is described for driving
Brake assemblies brake elevator.
As shown in Fig. 1, Fig. 6, after above-mentioned safety guard 10 is mounted in carriage 20 or counterweight frame 30, stressed member
200 face wind come to, elastic component 400 can be squeezed after 200 stress of stressed member, be subjected to displacement, when the elevator is run, due to by
The wind pressure size that power part 200 is subject to and the speed of service of carriage 20 it is square directly proportional, in this way, the speed of service of carriage 20 is got over
Fastly, the displacement of stressed member 200 is also bigger.When stressed member 200 is moved to the position contacted with trigger, control system will
Driving brake assemblies brake elevator, to guarantee the safety of elevator.Above-mentioned safety guard 10 only needs to install
Below carriage 20 or counterweight frame 30, structure is simple, installation convenience, and by the variation of wind pressure suffered by stressed member 200 to electricity
Ladder carries out security control, is not influenced by elevator other parts, securely and reliably.
Above-mentioned safety guard 10 may be mounted at the top or bottom of carriage 20, also may be mounted at counterweight frame 30
Bottom or top.
As shown in Figure 1, carriage 20 and counterweight frame 30 are connected to 40 two sides of traction machine, sedan-chair specific in the present embodiment
The bottom in compartment 20 and the bottom of counterweight frame 30 are provided with above-mentioned safety guard 10, in this way, regardless of carriage 20 is to be in
Propradation or decline state control system can be monitored according to the speed of service of the safety guard 10 to carriage 20.
As shown in fig. 6, more specifically, the mounting rack 100 of above-described protection device for installing is frame shape, stressed member
200 be plate, and the periphery and mounting rack 100 of stressed member 200 are slided or rolled and connect, and elastic component 400 is spring, elastic slice or elasticity
Rubber etc., trigger be arranged on mounting rack 100, trigger be set to stressed member 200 close to the side of elastic component 400 and with
Stressed member 200 is opposite.When elevator is static, stressed member 200 stops at mounting rack 100 under the action of self weight and elastic component 400
Bottom.Wind pressure is born below stressed member 200 when carriage 20 or counterweight frame 30 are run down.When wind pressure is greater than stressed member 200
Self weight and when the sum of the active force of elastic component 400, stressed member 200 is begun to move up inside mounting rack 100.
Further, safety guard 10 further includes dynamic clamping head and quiet clamping head 700, and trigger includes the first contact 610 and the
One end of two contacts 620, dynamic clamping head and quiet clamping head 700 is connect with mounting rack 100, the other end of dynamic clamping head and quiet clamping head 700 and the first contact
610 connections, when dynamic clamping head and quiet clamping head 700 is in first state, the first contact 610 is located at the second contact 620 close to stressed member 200
Side, when dynamic clamping head and quiet clamping head 700 is in the second state, stressed member 200 can be contacted with the second contact 620.
Square directly proportional, the speed that carriage 20 is run of the wind pressure that stressed member 200 is subject to and the speed that carriage 20 is run
Bigger, the wind pressure that stressed member 200 is born is bigger, and it is bigger that stressed member 200 moves up distance.When stressed member 200 and first touch
When 610 contact of point, control system driving brake brakes elevator.After this, if the speed of service of carriage 20 after
Continuous to rise, 200 the first contact of pushing tow 610 of stressed member continues to move up, until when stressed member 200 and the second contact 620 contact,
Control system drives the safety tongs to brake elevator.After elevator stops, stressed member 200 is in self weight and elastic component 400
Under the action of, original position is reformed into, the second contact 620 also reforms under the action of self weight and dynamic clamping head and quiet clamping head 700
It is in situ.
Optionally, dynamic clamping head and quiet clamping head 700 is spring, elastic slice or elastic rubber.
As shown in fig. 7, an embodiment further relates to a kind of elevator security control method, it is described according to wind pressure to stressed member
Impact effect the step of generating brake signal in, comprising: when the stressed member and trigger contact, generate the braking and believe
Number.
As shown in Fig. 1, Fig. 6, after above-mentioned safety guard 10 is mounted in carriage 20 or counterweight frame 30, stressed member
200 face wind come to, elastic component 400 can be squeezed after 200 stress of stressed member, be subjected to displacement, when the elevator is run, due to by
The wind pressure size that power part 200 is subject to and the speed of service of carriage 20 it is square directly proportional, in this way, the speed of service of carriage 20 is got over
Fastly, the displacement of stressed member 200 is also bigger.When stressed member 200 is moved to the position contacted with trigger, control system will
Generate brake signal.
Such as Fig. 6, specifically, the brake assemblies include brake and safety tongs, and the brake signal includes the first braking
Signal and the second brake signal；When the stressed member 200 and the first contact 610 of the contactor contact, described the is generated
One brake signal simultaneously drives the brake to brake elevator according to a brake signal, when the stressed member 200 with
When the second contact 620 contact of the contactor, generates second brake signal and institute is driven according to two brake signal
Safety tongs is stated to brake elevator.
As shown in Fig. 1, Fig. 6, more specifically, square for the speed that wind pressure and carriage 20 that stressed member 200 is subject to are run
Directly proportional, the speed that carriage 20 is run is bigger, and the wind pressure that stressed member 200 is born is bigger, and stressed member 200 moves up distance and gets over
Greatly.When stressed member 200 and the first contact 610 contact, the first contact 610 generates the first trigger signal, and control system is got
The first driving signal is generated after first trigger signal and drives brake to brake elevator according to the first driving signal.?
After this, if the speed of service of carriage 20 continues to rise, 200 the first contact of pushing tow 610 of stressed member is continued to move up, until
When stressed member 200 and the second contact 620 contact, the second contact 620 generates the second trigger signal, and control system gets the second touching
The second driving signal is generated after signalling and drives safety tongs to brake elevator according to the second driving signal.When elevator stops
After only, stressed member 200 reforms into original position, the second contact 620 is in self weight and bullet under the action of self weight and elastic component 400
Under the action of property return unit 700, original position is also reformed into.
As shown in Figure 1, an embodiment is related to a kind of elevator, comprising: two safety guards 10 as described above；Carriage
20, one of safety guard 10 is set to the bottom of carriage 20；The counterweight frame 30 being connect with carriage 20, another installation
Protective device 10 is set to the bottom of counterweight frame 30.
Carriage 20 and counterweight frame 30 are connected to 40 two sides of traction machine, the bottom of carriage 20 and counterweight frame by hoist ropes respectively
30 bottom is provided with above-mentioned safety guard 10, in this way, regardless of carriage 20 is in propradation or decline state
Control system can be monitored according to the speed of service of the safety guard to carriage 20.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (12)
1. a kind of safety guard characterized by comprising
Stressed member, the stressed member is for being arranged in carriage or counterweight frame, and the stressed member is for experiencing wind pressure；And
Trigger element, the trigger element are used to be sent out according to impact effect of the wind pressure to the stressed member to control system
The number of delivering letters, control system are used to drive brake assemblies to brake elevator according to the signal.
2. safety guard according to claim 1, which is characterized in that the trigger element is pressure detecting element,
The pressure detecting element is set on the stressed member, and the pressure detecting element is for detecting the wind that the stressed member is subject to
Pressure value, control system are used to drive the brake assemblies to brake elevator according to the wind pressure force value；
Or further include elastic component and mounting rack, the mounting rack is for being arranged in carriage or counterweight frame, and the one of the elastic component
End is abutted with the mounting rack, and the other end of the elastic component is abutted with the stressed member, and the trigger element is displacement detecting
Element, the displacement detecting element are set on the mounting rack, and the displacement detecting element is for detecting the stressed member
Displacement, control system are used to drive the brake assemblies to brake elevator according to the displacement.
3. safety guard according to claim 1, which is characterized in that further include elastic component and mounting rack, the peace
Shelve for be arranged in carriage or counterweight frame, one end of the elastic component is abutted with the mounting rack, the elastic component it is another
One end is abutted with the stressed member, and the trigger element is trigger, and the trigger is set on the mounting rack, and described
Trigger is set to the stressed member close to the side of the elastic component and opposite with the stressed member, when the trigger with
When the stressed member contacts, control system is for driving the brake assemblies to brake elevator.
4. safety guard according to claim 3, which is characterized in that it further include dynamic clamping head and quiet clamping head, the trigger
Including the first contact and the second contact, one end of the dynamic clamping head and quiet clamping head is connect with the mounting rack, the dynamic clamping head and quiet clamping head
The other end is connect with first contact, and when the dynamic clamping head and quiet clamping head is in first state, first contact is located at described
Second contact is close to the side of the stressed member, and when the dynamic clamping head and quiet clamping head is in the second state, the stressed member can be with
The second contact contact.
5. a kind of elevator security control method characterized by comprising
Brake signal is generated according to impact effect of the wind pressure to stressed member；
Brake assemblies are driven to brake elevator according to the brake signal.
6. elevator security control method according to claim 5, which is characterized in that it is described according to wind pressure to stressed member
Impact effect generate brake signal the step of in, comprising:
The wind pressure force value that the stressed member is subject to is detected, when the wind pressure force value is greater than preset value, generates the brake signal.
7. elevator security control method according to claim 6, which is characterized in that the brake assemblies include brake and
Safety tongs, the preset value include the first preset value and the second preset value, and the brake signal includes the first brake signal and the
Two brake signals；
When the wind pressure force value is greater than first preset value, first brake signal is generated and according to first system
Dynamic signal drives the brake to brake elevator, when the wind pressure force value is greater than second preset value, generates institute
It states the second brake signal and drives the safety tongs to brake elevator according to second brake signal.
8. elevator security control method according to claim 5, which is characterized in that it is described according to wind pressure to stressed member
Impact effect generate brake signal the step of in, comprising:
The displacement for detecting the stressed member generates the brake signal when the displacement is greater than preset value.
9. elevator security control method according to claim 8, which is characterized in that the brake assemblies include brake and
Safety tongs, the preset value include the first preset value and the second preset value, and the brake signal includes the first brake signal and the
Two brake signals；
When the displacement is greater than first preset value, first brake signal is generated and according to first braking
Signal drives the brake to brake elevator, when the displacement is greater than second preset value, generates described the
Two brake signals simultaneously drive the safety tongs to brake elevator according to two brake signal.
10. elevator security control method according to claim 5, which is characterized in that it is described according to wind pressure to stress
The impact effect of part generated in the step of brake signal, comprising:
When the stressed member and trigger contact, the brake signal is generated.
11. elevator security control method according to claim 10, which is characterized in that the brake assemblies include brake
And safety tongs, the brake signal include the first brake signal and the second brake signal；
When the first contact of the stressed member and the contactor contacts, first brake signal is generated and according to described
One brake signal drives the brake to brake elevator, when the stressed member is contacted with the second contact of the contactor
When, it generates second brake signal and drives the safety tongs to brake elevator according to two brake signal.
12. a kind of elevator characterized by comprising
Two described in any item safety guards of claim 1-4 as above；
Carriage, one of them safety guard are set to the bottom of the carriage；And
The counterweight frame connecting with the carriage, another protection device for installing are set to the bottom of the counterweight frame.
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| CN201910051611.1A CN109650212B (en) | 2019-01-21 | 2019-01-21 | Safety protection device, elevator safety control method and elevator |
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| CN201910051611.1A CN109650212B (en) | 2019-01-21 | 2019-01-21 | Safety protection device, elevator safety control method and elevator |
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| CN109650212B (en) | 2021-06-08 |
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