CN107298358A - anti-falling safety device - Google Patents
anti-falling safety device Download PDFInfo
- Publication number
- CN107298358A CN107298358A CN201710683542.7A CN201710683542A CN107298358A CN 107298358 A CN107298358 A CN 107298358A CN 201710683542 A CN201710683542 A CN 201710683542A CN 107298358 A CN107298358 A CN 107298358A
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- China
- Prior art keywords
- safe locking
- locking part
- steel wire
- rope
- safety device
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 206010057071 Rectal tenesmus Diseases 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 208000012271 tenesmus Diseases 0.000 description 1
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
- B66B5/044—Mechanical overspeed governors
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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
- B66B5/24—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 by acting on guide ropes or cables
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
Anti-falling safety device of the present invention is related to a kind of safety device for lift car.Its purpose is to provide a kind of anti-falling safety device that can prevent car from falling suddenly.Anti-falling safety device of the present invention includes speed limit part, safe locking part and guide steel wire rope (1), speed limit part is fixed and is located on car (2) lateral wall, safe locking part includes the supporting plate (24) being installed on car lateral wall, it which is provided with wedge track (44), wedge track is provided with two gripping blocks (25), the lower surface of gripping block offsets with top (26), and guide steel wire rope is vertically connected in elevator and passed through between two gripping blocks.
Description
Technical field
The present invention relates to a kind of safety device, more particularly to a kind of safety device for lift car.
Background technology
In skyscraper, in order to transport the convenience of material or personnel, the car that can be run up and down, sedan-chair are usually provided with
Railway carriage or compartment is arranged in elevator, car realized in elevator above and below the mode run have many kinds, one of which is in elevator
Two haulage cables are inside vertically provided with, car is provided with power set, and the power set drive car along traction
Steel wire rope is moved or moved downward upwards, completes to transport material or the work of personnel.Under many circumstances, for example equipment fault or
It is unexpected that falling accident can occur for aging, car, easily cause casualties and device damage.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of anti-falling safety device that can prevent car from falling suddenly.
Anti-falling safety device of the present invention, including speed limit part, safe locking part and guide steel wire rope,
The speed limit part is fixed and is located on the lateral wall of car, and the speed limit part includes a bearing support, the supporting
Frame is fixed on car lateral wall by first support, and the bearing support is provided with the first rope sheave and the second rope sheave, described first
Rope sheave is installed on the first sheave shaft, and the first sheave shaft is installed in rotation on bearing support, and second rope sheave passes through second
Sheave shaft is installed in rotation on bearing support, is installed with first sheave shaft on first gear, second sheave shaft
Provided with second gear, second gear is installed in rotation on bearing support by the second sheave shaft, first gear and second gear
It is meshed, is installed with first sheave shaft on a speed limited wheel, the side of the speed limited wheel and is hinged with two rejection tablets, two is got rid of
Piece is respectively the first rejection tablet and the second rejection tablet, the first rejection tablet and the second rejection tablet being centrosymmetrically arranged along speed limit wheel side,
The end that throws away of first rejection tablet is hinged with first connecting rod, and the other end of the first connecting rod is hinged on the withdrawal of the second rejection tablet
End, the end that throws away of first rejection tablet is also associated with the first spring, and the other end of first spring is connected in the side of speed limited wheel
On face, a roller and two eccentric wheels are additionally provided with the side of the speed limited wheel, the roller is installed in rotation on first
On sheave shaft, two eccentric wheels are installed in rotation on the side of speed limited wheel, and two eccentric wheels are arranged in roller
Opposite sides, the withdrawal end of two rejection tablets is hinged with second connecting rod, the other ends of two second connecting rods respectively with two bias
Wheel is hinged, and third connecting rod is hinged with the roller, and the other end of third connecting rod is hinged on binding post plate, set on binding post plate
There is binding post, the binding post plate is installed on a sliding axle, and the sliding axle is slidably mounted on bearing support by a U-shaped frame
On,
The safe locking part includes the fixed supporting plate being located on car lateral wall, and the supporting plate is provided with upper small
Big wedge track down, the wedge track is provided with two gripping blocks that can be slided along wedge track, the gripping block
End face offsets with a top, and the fixedly connected below of the top has a push rod, and the push rod passes through a base, the push rod and base
Between coordinate for gap, second spring is set with the push rod, the second spring is located between top and base, the branch
Baffle plate is installed with fagging, a side of the baffle plate fits with the top, and another of baffle plate is installed with T-shaped sideways
Frame, the baffle plate is provided with a bumping post with interting on T-shaped frame, and one end of the bumping post passes through baffle plate, and the other end of bumping post passes through T-shaped
The 3rd spring is set with frame, the bumping post between the T-shaped frame and baffle plate, one end of the 3rd spring offsets with T-shaped frame, the
The other end of three springs is connected on bumping post,
Brake cable is connected with the binding post, the other end of the brake cable is connected with bumping post one end through T-shaped frame,
The guide steel wire rope is vertically connected in elevator, and the guide steel wire rope is between two gripping blocks
Pass through.
Anti-falling safety device of the present invention, wherein the supporting plate is provided with limit switch, when the top is relative to supporting plate
Upwards during motion, the limit switch can be triggered.
Anti-falling safety device of the present invention, wherein roller is equipped with the orbital plane of the wedge track, the wedge track
Offered on the wall of side and be installed with the lead being engaged with bar shaped pilot hole in bar shaped pilot hole, the gripping block.
Anti-falling safety device of the present invention, wherein the safe locking part is set to four, four safe locking parts divide two-by-two
Cloth is on relative two lateral walls of car, and two safe locking parts on one of lateral wall are respectively the first safety lock
Two safe locking parts on tight part and the tight part of second safety lock, another lateral wall are respectively the 3rd safe locking portion
Part and the 4th safe locking part, the tight part of second safety lock are located at the underface of the first safe locking part, described the
Four safe locking parts are located at the underface of the 3rd safe locking part, and the first safe locking part and second safety lock are tight
Two are rotationally provided with supporting plate between part and between the 3rd safe locking part and the 4th safe locking part
The 3rd individual horizontally disposed and bonded to each other wheel rim rope sheave；The guide steel wire rope is provided with two, two guide steel wire rope difference
For the first guide steel wire rope and the second guide steel wire rope, two folders of first guide steel wire rope from the first safe locking part
Passed through between tight block and between two gripping blocks of the tight part of second safety lock, the first guide steel wire rope also from positioned at first,
Passed through between two the 3rd rope sheaves between two safe locking parts, second guide steel wire rope is from the 3rd safe locking part
Passed through between two gripping blocks and between two gripping blocks of the 4th safe locking part, the second guide steel wire rope also from positioned at
Passed through between two the 3rd rope sheaves between third and fourth safe locking part；The binding post is provided with four, every piece-root grafting terminal
Be connected with a brake cable, four brake cables respectively with the first safe locking part, the tight part of second safety lock, the 3rd safe locking portion
Bumping post connection in part and the 4th safe locking part.
Anti-falling safety device of the present invention, wherein also include two resetting means, each resetting means include resetting base and
Reset lever, the reset lever passes through and is set with back-moving spring, the reset bullet in the reset base, the reset lever
The lower end of spring is connected on the reset base, and the upper end of back-moving spring is connected in the reset lever, two resets
Device is respectively the first resetting means and the second resetting means, and first resetting means is matched somebody with somebody with first and second safe locking part
Conjunction is used, and the reset base in the first resetting means is fixed in the supporting plate of first and second safe locking part, and described second answers
Position device is used cooperatively with third and fourth safe locking part, and the reset base in the second resetting means is fixed on third and fourth safety
In the supporting plate of locking member, reset lever in first resetting means is by two connection cross bars respectively with first and second
Push rod in safe locking part is connected, the reset lever in second resetting means also by two connection cross bars respectively with
Push rod in third and fourth safe locking part is connected.
Anti-falling safety device of the present invention, wherein the reset base in each resetting means be set to above and below two, it is described multiple
The lower end of position spring is connected on the reset base of lower section.
Anti-falling safety device of the present invention, wherein the lower end of the reset lever is provided with handle.
Anti-falling safety device of the present invention, wherein the top includes two vertical plates, the lower end of two vertical plates is horizontal by one
It is connected to plate, lower surface of two vertical plates respectively with two gripping blocks offsets, the lower surface of the transverse plate is connected the top
Bar.
Anti-falling safety device of the present invention, wherein the both sides up and down of first rope sheave are respectively provided with a tensioning wheel, described second
The both sides up and down of rope sheave are also respectively provided with a tensioning wheel.
Anti-falling safety device difference from prior art of the present invention is the present invention when in use, in elevator
Two haulage cables bypass the first rope sheave and the second rope sheave respectively, when car drops suddenly, in the band of haulage cable
Under dynamic, the first rope sheave rotates, and the first sheave shaft being then fixed together with the first rope sheave also rotates, and then fixes
Speed limited wheel on the first sheave shaft also ensues rotation, when rotating speed reaches certain value, is installed on two on speed limited wheel
Rejection tablet is thrown away simultaneously, now, is articulated with the second connecting rod promotion eccentric wheel rotation that rejection tablet withdraws end, and the big end of two eccentric wheels is same
When way roller close to and push against roller, roller is followed by speed limited wheel and rotate together, be so hinged on the on roller the 3rd
Connecting rod will be moved, and third connecting rod drives the binding post plate motion being fixed thereon, due to being connected with brake cable on binding post,
Then brake cable is tightened up, and the other end of brake cable pulls bumping post from the lateral T-shaped frame side of baffle plate one, and bumping post now no longer stops top
Head, top is moved upwards in the presence of second spring, is then headed on gripping block and is moved upwards along wedge track, when two
When individual gripping block moves to the upper end of wedge track, two gripping blocks are directed to steel wire rope clamping, and now whole car is fixed on
On guide steel wire rope, so as to preventing car from falling suddenly.
The invention will be further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the front view of anti-falling safety device of the present invention；
Fig. 2 is the sectional view of the line A-A along along Fig. 1；
Fig. 3 is the top view of anti-falling safety device of the present invention；
Fig. 4 is the left view of anti-falling safety device of the present invention；
Fig. 5 is along the B direction views in Fig. 4；
Fig. 6 is the sectional view of the line C-C along along Fig. 5；
Fig. 7 is Fig. 5 top view；
Fig. 8 is the partial enlarged drawing at D in Fig. 7.
Embodiment
Anti-falling safety device of the present invention, including speed limit part, safe locking part and guide steel wire rope 1.
As shown in figure 1, and with reference to shown in Fig. 2-8, speed limit part fix be located on the lateral wall of car 2, the speed limit portion
Part includes a bearing support 3, and the bearing support 3 is fixed on the lateral wall of car 2 by first support 4, and the bearing support 3 is provided with
First rope sheave 5 and the second rope sheave 6, first rope sheave 5 are installed on the first sheave shaft 7, and the first sheave shaft 7 is rotatably mounted
On bearing support 3, second rope sheave 6 is installed in rotation on bearing support 3 by the second sheave shaft 8, first rope sheave
First gear 9 is installed with axle 7, second sheave shaft 8 is provided with second gear 10, and second gear 10 passes through the second sheave shaft
8 are installed in rotation on bearing support 3, and first gear 9 is meshed with second gear 10, are installed with first sheave shaft 7
Two rejection tablets are hinged with one speed limited wheel 11, the side of the speed limited wheel 11, two rejection tablets are respectively the first rejection tablet 12 and second
Rejection tablet 13, being centrosymmetrically arranged along the side of speed limited wheel 11 of rejection tablet 13 of the first rejection tablet 12 and second, first rejection tablet 12
The end that throws away be hinged with first connecting rod 14, the other end of the first connecting rod 14 is hinged on the withdrawal end of the second rejection tablet 13, described
The end that throws away of first rejection tablet 12 is also associated with the first spring 15, and the other end of first spring 15 is connected in the side of speed limited wheel 11
On face, a roller 16 and two eccentric wheels 17 are additionally provided with the side of the speed limited wheel 11, the roller 16 is rotationally pacified
On the first sheave shaft 7, two eccentric wheels 17 are installed in rotation on the side of speed limited wheel 11, two 17 points of eccentric wheels
It is not arranged in the opposite sides of roller 16, the withdrawal ends of two rejection tablets is hinged with second connecting rod 18, two second connecting rods 18
The other end is hinged with two eccentric wheels 17 respectively, and third connecting rod 19, the other end of third connecting rod 19 are hinged with the roller 16
It is hinged on binding post plate 20, binding post plate 20 is provided with binding post 21, the binding post plate 20 is installed on a sliding axle 22,
The sliding axle 22 is slidably mounted on bearing support 3 by a U-shaped frame 23.Slip is installed between sliding axle 22 and U-shaped frame 23
Bearing, such sliding axle 22 can slidably reciprocate along U-shaped frame 23.
As shown in Fig. 6,8, Fig. 6 shows that the second rope sheave 6 is installed in rotation on bearing support 3 by the second sheave shaft 8
Concrete mode, i.e. the second sheave shaft 8 is fixed on bearing support 3, and the second rope sheave 6 is installed in rotation on the second rope by bearing
On wheel shaft 8；Fig. 8 shows that the first rope sheave 5 is fixed on the first sheave shaft 7, and the first sheave shaft 7 is rotatably mounted by bearing
On bearing support 3, i.e. when the first rope sheave 5 is rotated, the first sheave shaft 7 follows the first rope sheave 5 to rotate together.
As shown in figure 4, safe locking part includes the fixed supporting plate 24 being located on the lateral wall of car 2, the supporting plate
24 are provided with up-small and down-big wedge track 44, and the wedge track 44 is provided with two clampings that can be slided along wedge track 44
Block 25, the lower surface of the gripping block 25 offsets with a top 26, and the fixedly connected below of top 26 has a push rod 27, the top
Bar 27 passes through a base 28, coordinates between the push rod 27 and base 28 for gap, and second spring is set with the push rod 27
29, the second spring 29 is located between top 26 and base 28, and baffle plate 30, the baffle plate 30 are installed with the supporting plate 24
A side 26 fitted with the top, another of baffle plate 30 is installed with T-shaped frame 31, the baffle plate 30 and T-shaped sideways
Intert on frame 31 and be provided with a bumping post 32, one end of the bumping post 32 passes through baffle plate 30, and the other end of bumping post 32 passes through T-shaped frame 31,
The 3rd spring 33, one end and the T-shaped frame of the 3rd spring 33 are set with bumping post 32 between the T-shaped frame 31 and baffle plate 30
31 are offseted, and the other end of the 3rd spring 33 is connected on bumping post 32.
It is equipped with the orbital plane of the wedge track 44 and offers bar shaped on roller, the side wall of the wedge track 44 and lead
To hole 34, the lead being engaged with bar shaped pilot hole 34 is installed with the gripping block 25.Roller in orbital plane can subtract
Frictional force between small gripping block 25 and orbital plane.When gripping block 25 moves up and down along wedge track 44, gripping block is installed in
Move in the bar shaped pilot hole 34 that lead on 25 is located on orbit sidewall and along bar shaped pilot hole 34.
Brake cable 35, the other end of the brake cable 35 and the bumping post 32 1 through T-shaped frame 31 are connected with the binding post 21
End connection, the guide steel wire rope 1 is vertically connected in elevator, and the guide steel wire rope 1 is from two gripping blocks 25
Between pass through.
Anti-falling safety device of the present invention, wherein the both sides up and down of first rope sheave 5 are respectively provided with a tensioning wheel 36, described
The both sides up and down of two rope sheaves 6 are also respectively provided with a tensioning wheel 36.When installation, by two haulage cables 45 in elevator
Rotating around on the first rope sheave 5 and the second rope sheave 6, tensioning traction is played positioned at the tensioning wheel 36 of first and second rope sheave 5,6 upper and lower sides
The effect of steel wire rope 45, makes haulage cable 45 be mutually adjacent to first and second rope sheave 5,6, with prevent haulage cable 45 and first,
There is skidding between two rope sheaves 5,6.In order to prevent haulage cable 45 from departing from the race of first and second rope sheave 5,6,
L-shaped baffle plate 37 is respectively equipped with the wheel rim of first and second rope sheave, L-shaped baffle plate 37 is fixed on bearing support 3, in the work of L-shaped baffle plate 37
Under, haulage cable 45 can be moved stably along the race of first and second rope sheave 5,6.When car 2 declines, traction steel wire
Rope 45 drives speed limited wheel 11 to rotate, and when the rotating speed of speed limited wheel 11 reaches certain value, the rejection tablet on speed limited wheel 11 can be got rid of
Go out.Because throwing away for the first rejection tablet 12 is hinged with first connecting rod 14 between end and the withdrawal end of the second rejection tablet 13, therefore two are got rid of
Piece can throw away or withdraw simultaneously.First spring 15 sets a prefastening force when installing, and the first the pre- of spring 15 strains at
Power is bigger, then the rotating speed of speed limited wheel 11 required for rejection tablet is thrown away is also bigger, conversely, the prefastening force of the first spring 15 is smaller, then
The rotating speed of speed limited wheel 11 required for rejection tablet is thrown away is also smaller.When the rotating speed of speed limited wheel 11 is less than thrown speed, the energy of the first spring 15
It is enough to retract the first rejection tablet 12 and the second rejection tablet 13 in speed limited wheel 11, play reset response.
Anti-falling safety device of the present invention, wherein the supporting plate 24 be provided with limit switch 38, when it is described top 26 relative to
When supporting plate 24 is moved upwards, the limit switch 38 can be triggered.Power set on the control car 2 of limit switch 38 stop
Work, prevents power set from continuing traction car 2 and moving up and down and drag disconnected guide steel wire rope 1.
Anti-falling safety device of the present invention, wherein the safe locking part is set to four, four safe locking parts divide two-by-two
Cloth is on relative two lateral walls of car 2, and two safe locking parts on one of lateral wall are respectively the first safety
Two safe locking parts on locking member and the tight part of second safety lock, another lateral wall are respectively the 3rd safe locking
Part and the 4th safe locking part, the tight part of second safety lock are located at the underface of the first safe locking part, described
4th safe locking part is located at the underface of the 3rd safe locking part, the first safe locking part and second safety lock
Rotationally set between tight part and in the supporting plate 24 between the 3rd safe locking part and the 4th safe locking part
There are two horizontally disposed and wheel rim the 3rd rope sheaves 39 bonded to each other；The guide steel wire rope 1 is provided with two, two guiding steel wires
Rope 1 is respectively the first guide steel wire rope and the second guide steel wire rope, and first guide steel wire rope is from the first safe locking part
Two gripping blocks between and two gripping blocks 25 of the tight part of second safety lock between pass through, the first guide steel wire rope also from
Passed through between two the 3rd rope sheaves 39 between first and second safe lock assembly, second guide steel wire rope is safe from the 3rd
Passed through between two gripping blocks 25 of locking member and between two gripping blocks 25 of the 4th safe locking part, second is oriented to
Steel wire rope is also passed through between two the 3rd rope sheaves 39 between third and fourth safe locking part；The binding post 21 is provided with
Four, a brake cable 35 is often respectively connected with piece-root grafting terminal 21, four brake cables 35 are pacified with the first safe locking part, second respectively
Bumping post 32 in full locking member, the 3rd safe locking part and the 4th safe locking part is connected.
The guide steel wire rope 1 is vertically connected in elevator, and the guide steel wire rope 1 is from two gripping blocks 25
Between pass through.When two gripping blocks 25 move to the upper end of wedge track 44, two gripping blocks 25 can be directed to steel wire rope 1
Clamp, so that whole car 2 is fixed on guide steel wire rope 1.
As shown in figure 4, anti-falling safety device of the present invention, wherein also including two resetting means, each resetting means includes
Base 40 and reset lever 41 are resetted, the reset lever 41 is set with through described reset in base 40, the reset lever 41
There is back-moving spring 42, the lower end of the back-moving spring 42 is connected on the reset base 40, and the upper end of back-moving spring 42 is connected
In the reset lever 41, two resetting means are respectively the first resetting means and the second resetting means, described first
Resetting means is used cooperatively with first and second safe locking part, and the reset base 40 in the first resetting means is fixed on first and second
In the supporting plate 24 of safe locking part, second resetting means is used cooperatively with third and fourth safe locking part, and second answers
Reset base 40 in the device of position is fixed in the supporting plate 24 of third and fourth safe locking part, in first resetting means
Reset lever 41 be connected respectively with the push rod 27 in first and second safe locking part by two connection cross bars 43, described the
Reset lever 41 in two resetting means also by two connection cross bars 43 respectively with the push rod in third and fourth safe locking part
27 are connected.
Anti-falling safety device of the present invention, wherein the reset base 40 in each resetting means be set to above and below two, it is described
The lower end of back-moving spring 42 is connected on the reset base 40 of lower section.Two reset base 40 and reset lever 41 can be played more
Good guide effect, the lower end of the reset lever 41 is provided with handle, facilitates staff to pull reset lever 41.
Anti-falling safety device of the present invention, wherein the top 26 includes two vertical plates, the lower end of two vertical plates passes through one
Transverse plate is connected, and lower surface of two vertical plates respectively with two gripping blocks 25 offsets, the connected institute in lower surface of the transverse plate
State push rod 27.During original state, i.e., when gripping block 25 is moved upwards not along wedge track 44, second spring 29 is in compression shape
State, one end of bumping post 32 is stretched out outside baffle plate 30 and positioned at the top of 26 transverse plates of top, prevents the upward motion in top 26.Work as bumping post
After 32 are pulled back in baffle plate 30, bumping post 32 no longer stops the transverse plate of top 26, and then now top 26 can be in the second bullet
The lower motion upwards of elastic force effect of spring 29, so as to promote gripping block 25 to be moved upwards along wedge track 44.
The course of work of the invention is described below：
Because the structure ＆ working mechanism of four safe locking parts is identical, therefore only with wherein any one safety
Locking member is illustrated.When the tenesmus suddenly of car 2 reaches certain speed, haulage cable 45 drives the first rope sheave 5
Rotated with the second rope sheave 6, it is in order to improve the reliability of the invention in use, accordingly even when two to set the second rope sheave 6
One in root haulage cable 45 breaks, and remaining one remains able to drive the first rope sheave 5 and the second rope sheave 6 to rotate, by
In the first rope sheave 5 the first sheave shaft 7 can be driven to rotate together, thus the speed limited wheel 11 being fixed on the first sheave shaft 7 also with
And rotate together, two be installed on speed limited wheel 11 rejection tablet is while throw away, now, be articulated with the second connecting rod that rejection tablet withdraws end
18 promotion eccentric wheels 17 are rotated, and way roller 16 is close simultaneously and pushes against roller 16 at the big end of two eccentric wheels 17, enables roller 16
It enough followed by speed limited wheel 11 to rotate together, the third connecting rod 19 being so hinged on roller 16 will be moved, third connecting rod
19 drive the binding post plate 20 being fixed thereon to move, and due to being connected with brake cable 35 on binding post 21, then brake cable 35 is tightened up,
The other end of brake cable 35 pulls bumping post 32 from the lateral side of T-shaped frame 31 of baffle plate 30 1, and bumping post 32 now no longer stops top 26,
Top 26 is moved upwards in the presence of second spring 29, is then come directly towards 26 and is headed on gripping block 25 along the upward fortune of wedge track 44
Dynamic, when two gripping blocks 25 move to the upper end of wedge track 44, two gripping blocks 25 are directed to steel wire rope 1 and clamped, now
Whole car 2 has been fixed on guide steel wire rope 1, so as to prevent car 2 from falling suddenly.That is moved upwards in top 26 is same
When, it can trigger limit switch 38, and the power set of the control car 2 of limit switch 38 shut down, and prevent it from continuing to draw
Car 2 moves up and down and is directed to steel wire rope 1 and drags disconnected.
Release locking state process as follows：Reset lever 41, reset lever are pulled downward on by the handle of reset lever 41
41 drive push rods 27 are moved down, and top 26, which is also moved downward, re-compresses second spring 29, the gripping block offseted with top 26
25 move downward also along wedge track 44, and now gripping block 25 unclamps guide steel wire rope 1, then rotate speed limited wheel 11, make the
Three connecting rods 19 no longer tense brake cable 35, now, and under the pulling force effect of the first spring 15, rejection tablet is recovered in speed limited wheel 11.When
When top 26 moves downward origin-location, it departs from limit switch 38, and now limit switch 38 no longer controls the power of car 2 to fill
Put, because brake cable 35 loosens, then under the elastic force effect of the 3rd spring 33, bumping post 32 is from the lateral baffle plate 30 1 of T-shaped frame 31 1
Baffle plate 30 is stretched out in lateral movement, the termination of bumping post 32 again, and now the transverse plate of top 26 is located at the lower section of bumping post 32, unclamps and resets
The handle of pull bar 41, in the presence of the elastic force of back-moving spring 42, reset lever 41 drives push rod 27 to move upwards, until top 26
Transverse plate offseted with bumping post 32, now bumping post 32 prevents top from 26 continuing up, while also it is prevented that gripping block 25
Continue up, gripping block 25 cannot also be directed to steel wire rope 1 and lock, whole anti-falling safety device is in released state.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
In various modifications and improvement that case is made, the protection domain that claims of the present invention determination all should be fallen into.
Claims (9)
1. a kind of anti-falling safety device, it is characterised in that：Including speed limit part, safe locking part and guide steel wire rope (1),
The speed limit part is fixed and is located on the lateral wall of car (2), and the speed limit part includes a bearing support (3), the branch
Bolster is fixed on car lateral wall by first support (4), and the bearing support is provided with the first rope sheave (5) and the second rope sheave
(6), first rope sheave is installed on the first sheave shaft (7), and the first sheave shaft is installed in rotation on bearing support, and described
Two rope sheaves are installed in rotation on bearing support by the second sheave shaft (8), and first gear is installed with first sheave shaft
(9), second sheave shaft is provided with second gear (10), and second gear is installed in rotation on supporting by the second sheave shaft
On frame, first gear is meshed with second gear, and a speed limited wheel (11) is installed with first sheave shaft, the speed limited wheel
Be hinged with two rejection tablets on side, two rejection tablets are respectively the first rejection tablet (12) and the second rejection tablet (13), first rejection tablet and
Second rejection tablet is centrosymmetrically arranged along speed limit wheel side, and the end that throws away of first rejection tablet is hinged with first connecting rod (14), institute
The other end for stating first connecting rod is hinged on the withdrawal end of the second rejection tablet, and the end that throws away of first rejection tablet is also associated with the first spring
(15), the other end of first spring is connected on the side of speed limited wheel, and a rolling is additionally provided with the side of the speed limited wheel
(16) and two eccentric wheels (17) are taken turns, the roller is installed in rotation on the first sheave shaft, and two eccentric wheels are rotatable
Ground is arranged on the side of speed limited wheel, and two eccentric wheels are arranged in the opposite sides of roller, and the withdrawal end of two rejection tablets is equal
Second connecting rod (18) is hinged with, the other end of two second connecting rods is hinged with two eccentric wheels, is hinged with the roller respectively
Third connecting rod (19), the other end of third connecting rod is hinged on binding post plate (20), and binding post plate is provided with binding post (21), institute
State binding post plate to be installed on a sliding axle (22), the sliding axle is slidably mounted on bearing support by a U-shaped frame (23),
The safe locking part includes the fixed supporting plate (24) being located on car lateral wall, and the supporting plate is provided with upper small
Big wedge track (44) down, the wedge track is provided with two gripping blocks (25) that can be slided along wedge track, the folder
The lower surface of tight block offsets with a top (26), and the fixedly connected below of the top has a push rod (27), and the push rod passes through a bottom
Seat (28), coordinates between the push rod and base for gap, and second spring (29), the second spring are set with the push rod
It is located between top and base, baffle plate (30), a side and the top phase of the baffle plate is installed with the supporting plate
Laminating, another of baffle plate is installed with T-shaped frame (31) sideways, and the baffle plate is provided with a bumping post (32) with interting on T-shaped frame, described
One end of bumping post passes through baffle plate, and the other end of bumping post, which is passed through, is set with the on T-shaped frame, the bumping post between the T-shaped frame and baffle plate
Three springs (33), one end of the 3rd spring is offseted with T-shaped frame, and the other end of the 3rd spring is connected on bumping post,
Brake cable (35) is connected with the binding post, the other end of the brake cable is connected with bumping post one end through T-shaped frame,
The guide steel wire rope is vertically connected in elevator, and the guide steel wire rope is worn between two gripping blocks
Cross.
2. anti-falling safety device according to claim 1, it is characterised in that：The supporting plate (24) is provided with limit switch
(38), when the top (26) is moved upwards relative to supporting plate, the limit switch can be triggered.
3. anti-falling safety device according to claim 2, it is characterised in that：Laid in the orbital plane of the wedge track (44)
Have and bar shaped pilot hole (34) is offered on roller, the side wall of the wedge track, be installed with and bar shaped on the gripping block (25)
The lead that pilot hole is engaged.
4. anti-falling safety device according to claim 3, it is characterised in that：The safe locking part is set to four, four
Safe locking part is distributed on relative two lateral walls of car (2) two-by-two, two safety locks on one of lateral wall
Tight part is respectively two safe locking portions on the first safe locking part and the tight part of second safety lock, another lateral wall
Part is respectively the 3rd safe locking part and the 4th safe locking part, and the tight part of second safety lock is located at the first safety lock
The underface of tight part, the 4th safe locking part is located at the underface of the 3rd safe locking part, first safety
Between locking member and the tight part of second safety lock and the branch between the 3rd safe locking part and the 4th safe locking part
Rotationally provided with two horizontally disposed and wheel rim the 3rd rope sheaves (39) bonded to each other on fagging (24)；The guiding steel wire
(1) is restricted provided with two, two guide steel wire ropes are respectively the first guide steel wire rope and the second guide steel wire rope, and described first is oriented to
Steel wire rope between two gripping blocks (25) of the first safe locking part and the tight part of second safety lock two gripping blocks
Between pass through, the first guide steel wire rope is also passed through between two the 3rd rope sheaves between first and second safe locking part, institute
The second guide steel wire rope is stated between two gripping blocks of the 3rd safe locking part and two of the 4th safe locking part
Passed through between gripping block, the second guide steel wire rope is also between two the 3rd rope sheaves between third and fourth safe locking part
Pass through；The binding post is provided with four, per piece-root grafting terminal on is respectively connected with a brake cable, four brake cables respectively with the first safety lock
Bumping post connection in tight part, the tight part of second safety lock, the 3rd safe locking part and the 4th safe locking part.
5. anti-falling safety device according to claim 4, it is characterised in that：Also include two resetting means, it is each to reset dress
Putting includes resetting base (40) and reset lever (41), and the reset lever passes through the reset base, the reset lever
On be set with back-moving spring (42), the lower end of the back-moving spring is connected on the reset base, and the upper end of back-moving spring is consolidated
It is connected in the reset lever, two resetting means are respectively the first resetting means and the second resetting means, described first
Resetting means is used cooperatively with first and second safe locking part, and the reset base in the first resetting means is fixed on first and second peace
In the supporting plate (24) of full locking member, second resetting means is used cooperatively with third and fourth safe locking part, and second answers
Reset base in the device of position is fixed in the supporting plate of third and fourth safe locking part, answering in first resetting means
Position pull bar is connected with the push rod (27) in first and second safe locking part respectively by two connection cross bars (43), and described second
Reset lever in resetting means is connected with the push rod in third and fourth safe locking part respectively also by two connection cross bars.
6. anti-falling safety device according to claim 5, it is characterised in that：Reset base in each resetting means
(40) two above and below being set to, the lower end of the back-moving spring (42) is connected on the reset base of lower section.
7. anti-falling safety device according to claim 6, it is characterised in that：The lower end of the reset lever (41) is provided with handle
Hand.
8. anti-falling safety device according to claim 7, it is characterised in that：The top (26) includes two vertical plates, two
The lower end of individual vertical plate is connected by a transverse plate, and lower surface of two vertical plates respectively with two gripping blocks (25) offsets, institute
The lower surface for stating transverse plate is connected the push rod (27).
9. anti-falling safety device according to claim 8, it is characterised in that：The both sides up and down of first rope sheave (5) are respectively set
There is a tensioning wheel (36), the both sides up and down of second rope sheave (6) are also respectively provided with a tensioning wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710683542.7A CN107298358B (en) | 2017-08-11 | Anti-falling safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710683542.7A CN107298358B (en) | 2017-08-11 | Anti-falling safety device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107298358A true CN107298358A (en) | 2017-10-27 |
| CN107298358B CN107298358B (en) | 2024-06-11 |
Family
ID=
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821054A (en) * | 2018-08-27 | 2018-11-16 | 博众精工科技股份有限公司 | Anti-falling device for carriage and carriage jacking system |
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| CN106927331A (en) * | 2017-04-13 | 2017-07-07 | 台州市中奥特种设备检测技术服务有限公司 | A kind of speed limit anti-drop device for lift transformation |
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| CN2542633Y (en) * | 2002-05-17 | 2003-04-02 | 河北东方机械厂 | Two-way speed governors |
| CN1397480A (en) * | 2002-08-14 | 2003-02-19 | 宁波欣达电梯配件厂 | Speed-limiting safety jaw |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108821054A (en) * | 2018-08-27 | 2018-11-16 | 博众精工科技股份有限公司 | Anti-falling device for carriage and carriage jacking system |
| CN108821054B (en) * | 2018-08-27 | 2024-03-19 | 博众精工科技股份有限公司 | Car anti-falling device and car lifting system |
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