CN206737852U - A kind of drop-proof elevator - Google Patents
A kind of drop-proof elevator Download PDFInfo
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- CN206737852U CN206737852U CN201720295915.9U CN201720295915U CN206737852U CN 206737852 U CN206737852 U CN 206737852U CN 201720295915 U CN201720295915 U CN 201720295915U CN 206737852 U CN206737852 U CN 206737852U
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- stopper
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Abstract
The utility model discloses a kind of drop-proof elevator, belongs to oil drilling equipment technical field, including hanger, lower notch and the earhole for placing suspension ring are provided with hanger, it is characterised in that：Retaining member is provided with the lower notch, the retaining member includes stopper and the closing piece below stopper, stopper is fixed in lower notch by the first rotary shaft, closing piece is fixed in lower notch by the second rotary shaft, the fore shaft being adapted with closing piece is provided with the stopper, the stopper is connected with closing piece locking.The utility model can make suspension ring smoothly enter hanger earhole, and after elevator lifting, closing piece can be sealed with stopper rapidly, and suspension ring are carried out with good stop, prevents suspension ring from coming off, greatly improves the security reliability of operation process.
Description
Technical field
It the utility model is related to oil drilling equipment technical field, more particularly to a kind of drop-proof elevator.
Background technology
In drilling engineering, elevator is a kind of instrument for being used for slinging the tubing such as drilling rod, oil pipe and sleeve pipe.It is suspended on lifting
Inside the suspension ring of system hook both sides, to have been carried out out to well or tripping in drilling tool and oil pipe, the operation of sleeve pipe.
In actual use, because the influence of the various factors such as environment, suspension ring are easily skidded off out of elevator earhole, drawn
Send out serious accident.To prevent suspension ring from being come off out of elevator earhole, anti-drop device, prior art are usually provided with elevator
Anti-drop device use latch structure more, at the hanger of elevator set longitudinal direction pin hole, latch insertion pin hole in regard to energy
Suspension ring are prevented to be come off out of elevator earhole, this anti-drop device is simple in construction, easy to process, and still, its less stable is long
Phase is increased using the gap between rear latch and pin hole, and latch easily slips.
Publication No. CN 203879414U, publication date disclose one kind for the Chinese patent literature on October 15th, 2014
Disconnecting preventing elevator, including elevator body and anti-drop device, it is characterised in that：The anti-drop device includes suspension ring block, bearing pin
And back-moving spring, the suspension ring block are fixed in the arm of elevator body by bearing pin, the back-moving spring is fixed on bearing pin
On, the top outer of the suspension ring block is provided with pedal, and the inside top of suspension ring block is provided with positive stop lug boss, described spacing
Boss is engaged with elevator body, and the pedal, positive stop lug boss and suspension ring block three are structure as a whole, one end of the bearing pin
On leave back-moving spring fixing groove, the other end is fixedly connected by interior hexagonal tapered end lock screw with elevator body, the reset
One end of spring is fixed in back-moving spring fixing groove, the other end is fixedly connected with suspension ring block, and the bearing pin is leaving reset
Plug screw is additionally provided with one end of spring fixing groove.
Drop-proof elevator disclosed in the patent document, although the opening and closing of anti-drop device is more flexible, it is easy to the handling of suspension ring,
It is that, because pedal, positive stop lug boss and suspension ring block three are structure as a whole, suspension ring block is fixed on elevator body by bearing pin
In arm, easily worn after bearing pin long-term use, cause the gap of itself and suspension ring block to increase, suspension ring block is more prone to occur
Rotate, suspension ring block can not effectively stop suspension ring, cause the reduction of operation process security reliability.
Utility model content
The defects of the utility model is in order to overcome above-mentioned prior art, there is provided a kind of drop-proof elevator, the utility model can
Suspension ring are made smoothly to enter hanger earhole, after elevator lifting, closing piece can be sealed with stopper rapidly, and suspension ring are carried out with good resistance
Gear, prevents suspension ring from coming off, greatly improves the security reliability of operation process.
The utility model is achieved through the following technical solutions：
A kind of drop-proof elevator, including hanger, lower notch and the earhole for placing suspension ring are provided with hanger, its feature exists
In：Retaining member is provided with the lower notch, the retaining member includes stopper and the closing piece below stopper, resistance
Block is fixed in lower notch by the first rotary shaft, and closing piece is fixed in lower notch by the second rotary shaft, the stopper
On be provided with the fore shaft being adapted with closing piece, the stopper is connected with closing piece locking.
Installation cavity is provided with the stopper, bearing part is provided with installation cavity, the first rotary shaft runs through installation cavity, bearing
Part is enclosed in the first rotary shaft.
First rotary shaft includes gear shaft one, gear shaft two and connecting shaft block, and gear shaft one is connected with gear shaft two by connecting shaft block,
Bearing part is enclosed on the joint of gear shaft one and gear shaft two.
The first wind spring, the second wind spring and door are additionally provided with the installation cavity, one end of the first wind spring is hung over
On gear shaft one, the other end is hung on door, and one end of the second wind spring is hung on door, and the other end is hung on gear shaft two, and first
The torsional direction of wind spring and the second wind spring is opposite.
Second rotary shaft includes closing piece axle and inserts lid, and closing piece axle is made up of integrally formed section one, section two and section three,
The diameter of section one is more than section two, and section two is identical with the diameter of section three, and torsionspring is cased with section two, and torsionspring is located at Duan Eryu
In the toroidal cavity that closing piece is formed, slotting lid is plugged in section three.
The first sealing ring and the second sealing ring are provided between the stopper and the first rotary shaft, the first sealing ring is enclosed on
On gear shaft one, the second sealing ring is enclosed on gear shaft two.
The 3rd sealing ring and the 4th sealing ring, the 3rd sealing ring and the 4th are provided between the closing piece and the second rotary shaft
Sealing ring is enclosed on closing piece axle.
Operation principle of the present utility model is as follows：
In use, when suspension ring enter the hanger earhole of elevator, suspension ring promote stopper rotation, open suspension ring passage, hang
Ring enters hanger earhole, stopper spinning reduction, closes suspension ring passage；Elevator leaves ground, closing piece rotation with stopper
Fore shaft is sealed.When suspension ring to be taken out, elevator is put in ground, closing piece by ground upwardly active force and rotate, closing piece departs from resistance
Block, release sealed, you can take out suspension ring.
The beneficial effects of the utility model are mainly manifested in following aspect：
First, the utility model, retaining member is provided with lower notch, and retaining member includes stopper and under stopper
The closing piece of side, stopper are fixed in lower notch by the first rotary shaft, and closing piece is fixed in lower notch by the second rotary shaft,
The fore shaft being adapted with closing piece is provided with stopper, stopper is connected with closing piece locking, when suspension ring enter hanger earhole, suspension ring
Promote stopper to rotate counterclockwise, open suspension ring passage；Ground is left after elevator lifting, closing piece is losing the feelings of ground force
Rotated under condition, and it is sealed with the fore shaft on stopper, and then can suspension ring be carried out with good stop, prevent suspension ring from coming off,
Improve operation process security reliability.
2nd, the utility model, installation cavity is provided with stopper, bearing part is provided with installation cavity, the first rotary shaft runs through
Installation cavity, bearing part are enclosed in the first rotary shaft, by using bearing part and the fit system of rotary shaft, can turn stopper
It is dynamic more flexible, stopper job stability is ensured, avoids stopper from making the first rotary shaft excessive wear due to frequently using, leads
Cause stopper failure.
3rd, the utility model, the first rotary shaft include gear shaft one, gear shaft two and connecting shaft block, and gear shaft one and gear shaft two pass through
Connecting shaft block connects, and bearing part is enclosed on the joint of gear shaft one and gear shaft two, and the first rotary shaft is using this specific segmented knot
Structure, can dispersive stress, extend the first rotary shaft service life, and then ensure stopper use reliability.
4th, the utility model, the first wind spring, the second wind spring and door, the first wind spring are additionally provided with installation cavity
One end hang on gear shaft one, the other end is hung on door, and one end of the second wind spring is hung on door, and the other end hangs over gear shaft
On two, the torsional direction of the first wind spring and the second wind spring is on the contrary, by setting the first wind spring in installation cavity, suspension ring exist
Into after hanger earhole, stopper can in the presence of the first wind spring rapid spinning reduction, close suspension ring passage；When taking
When going out suspension ring, after suspension ring leave hanger earhole, stopper and can in the presence of the second wind spring enough resets rapidly, realizes resistance
Block automatically resets, and without manual intervention, improves the efficiency for loading and unloading suspension ring.
5th, the utility model, the second rotary shaft include closing piece axle and insert lid, and closing piece axle is by integrally formed section one, section two
Formed with section three, the diameter of section one is more than section two, and section two is identical with the diameter of section three, and torsionspring is cased with section two, reverses bullet
Spring is located in the toroidal cavity of Duan Eryu closing pieces formation, and slotting lid is plugged in section three, is rotated using the second of this specific structure
Axle, closing piece can be made rotatably mounted flexibly, when elevator on the ground when, closing piece acts in ground force and the second rotary shaft
Lower and stopper remains disengaged from state；When elevator leaves ground, closing piece is due to losing ground force and making in the second rotary shaft
Under, rotate counterclockwise closing piece by the effect of torsionspring, so it is sealed with the fore shaft of stopper, and closing piece passes through second turn
Moving axis is fixed in lower notch, is had and is rotated the characteristics of flexibility is strong and reliability is high.
6th, the utility model, is provided with the first sealing ring and the second sealing ring between stopper and the first rotary shaft, and first
Sealing ring is enclosed on gear shaft one, and the second sealing ring is enclosed on gear shaft two, by the setting of sealing ring, after can preventing long-term use
Gap between stopper and the first rotary shaft becomes big, ensures the rotation reliability of stopper, so ensure retaining member for
The overall anticreep performance of suspension ring.
7th, the utility model, the 3rd sealing ring and the 4th sealing ring are provided between closing piece and the second rotary shaft, the 3rd is close
Seal and the 4th sealing ring are enclosed on closing piece axle, by the setting of sealing ring, can be prevented between closing piece and the second rotary shaft
Gap increases and causes rocking for closing piece, ensures the stability and lock ability of closing piece.
Brief description of the drawings
The utility model is described in further detail below in conjunction with specification drawings and specific embodiments, its
In：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the sectional view of the utility model embodiment 6；
Marked in figure：1st, earhole, 4, lower notch, 5, stopper, 6, closing piece, the 7, first rotary shaft, the 8, second rotary shaft,
24th, installation cavity, 25, bearing part, 26, gear shaft one, 27, gear shaft two, 28, connecting shaft block, the 29, first wind spring, the 30, second clockwork spring
Spring, 31, door, 32, closing piece axle, 33, insert lid, 34, Duan Yi, 35, section two, 36, section three, 37, torsionspring, 38, toroidal cavity,
39th, the first sealing ring, the 40, second sealing ring, the 41, the 3rd sealing ring, the 42, the 4th sealing ring.
Embodiment
Embodiment 1
A kind of drop-proof elevator, including hanger, lower notch 4 and the earhole 1 for placing suspension ring, the lower groove are provided with hanger
Retaining member is provided with mouth 4, the retaining member includes stopper 5 and the closing piece 6 positioned at the lower section of stopper 5, and stopper 5 is logical
Cross the first rotary shaft 7 to be fixed in lower notch 4, closing piece 6 is fixed in lower notch 4 by the second rotary shaft 8, the stopper 5
On be provided with the fore shaft being adapted with closing piece 6, the stopper 5 is connected with the locking of closing piece 6.
The present embodiment is most basic embodiment, and retaining member is provided with lower notch, and retaining member includes stopper
With the closing piece below stopper, stopper is fixed in lower notch by the first rotary shaft, and closing piece passes through the second rotary shaft
It is fixed in lower notch, the fore shaft being adapted with closing piece is provided with stopper, stopper is connected with closing piece locking, when suspension ring enter
During hanger earhole, suspension ring promote stopper to rotate counterclockwise, and open suspension ring passage；Ground is left after elevator lifting, closing piece is losing
Rotated in the case of going ground force, and it is sealed with the fore shaft on stopper, and then can suspension ring be carried out with good resistance
Gear, prevents suspension ring from coming off, and improves operation process security reliability.
Embodiment 2
A kind of drop-proof elevator, including hanger, lower notch 4 and the earhole 1 for placing suspension ring, the lower groove are provided with hanger
Retaining member is provided with mouth 4, the retaining member includes stopper 5 and the closing piece 6 positioned at the lower section of stopper 5, and stopper 5 is logical
Cross the first rotary shaft 7 to be fixed in lower notch 4, closing piece 6 is fixed in lower notch 4 by the second rotary shaft 8, the stopper 5
On be provided with the fore shaft being adapted with closing piece 6, the stopper 5 is connected with the locking of closing piece 6.
Installation cavity 24 is provided with the stopper 5, bearing part 25 is provided with installation cavity 24, the first rotary shaft 7 is through peace
It behave affectedly 24, bearing part 25 is enclosed in the first rotary shaft 7.
The present embodiment is a better embodiment, and installation cavity is provided with stopper, is provided with bearing part in installation cavity, first
Rotary shaft runs through installation cavity, and bearing part is enclosed in the first rotary shaft, can by using bearing part and the fit system of rotary shaft
Rotate stopper more flexible, ensure stopper job stability, avoid stopper from making the first rotary shaft due to frequently using
Excessive wear, stopper is caused to fail.
Embodiment 3
A kind of drop-proof elevator, including hanger, lower notch 4 and the earhole 1 for placing suspension ring, the lower groove are provided with hanger
Retaining member is provided with mouth 4, the retaining member includes stopper 5 and the closing piece 6 positioned at the lower section of stopper 5, and stopper 5 is logical
Cross the first rotary shaft 7 to be fixed in lower notch 4, closing piece 6 is fixed in lower notch 4 by the second rotary shaft 8, the stopper 5
On be provided with the fore shaft being adapted with closing piece 6, the stopper 5 is connected with the locking of closing piece 6.
Installation cavity 24 is provided with the stopper 5, bearing part 25 is provided with installation cavity 24, the first rotary shaft 7 is through peace
It behave affectedly 24, bearing part 25 is enclosed in the first rotary shaft 7.
First rotary shaft 7 includes gear shaft 1, gear shaft 2 27 and connecting shaft block 28, and gear shaft 1 and gear shaft 2 27 pass through
Connecting shaft block 28 connects, and bearing part 25 is enclosed on the joint of gear shaft 1 and gear shaft 2 27.
The present embodiment is another better embodiment, and the first rotary shaft includes gear shaft one, gear shaft two and connecting shaft block, gear shaft one
Connected with gear shaft two by connecting shaft block, bearing part is enclosed on the joint of gear shaft one and gear shaft two, and the first rotary shaft uses this spy
Fixed segmentation structure, can dispersive stress, extend the first rotary shaft service life, and then ensure stopper use it is reliable
Property.
Embodiment 4
A kind of drop-proof elevator, including hanger, lower notch 4 and the earhole 1 for placing suspension ring, the lower groove are provided with hanger
Retaining member is provided with mouth 4, the retaining member includes stopper 5 and the closing piece 6 positioned at the lower section of stopper 5, and stopper 5 is logical
Cross the first rotary shaft 7 to be fixed in lower notch 4, closing piece 6 is fixed in lower notch 4 by the second rotary shaft 8, the stopper 5
On be provided with the fore shaft being adapted with closing piece 6, the stopper 5 is connected with the locking of closing piece 6.
Installation cavity 24 is provided with the stopper 5, bearing part 25 is provided with installation cavity 24, the first rotary shaft 7 is through peace
It behave affectedly 24, bearing part 25 is enclosed in the first rotary shaft 7.
First rotary shaft 7 includes gear shaft 1, gear shaft 2 27 and connecting shaft block 28, and gear shaft 1 and gear shaft 2 27 pass through
Connecting shaft block 28 connects, and bearing part 25 is enclosed on the joint of gear shaft 1 and gear shaft 2 27.
The first wind spring 29, the second wind spring 30 and door 31, the first wind spring 29 are additionally provided with the installation cavity 24
One end hang on gear shaft 1, the other end is hung on door 31, and one end of the second wind spring 30 is hung on door 31, the other end
Hang on gear shaft 2 27, the torsional direction of the first wind spring 29 and the second wind spring 30 is opposite.
The present embodiment is another better embodiment, and the first wind spring, the second wind spring and gear are additionally provided with installation cavity
Lid, one end of the first wind spring are hung on gear shaft one, and the other end is hung on door, and one end of the second wind spring is hung on door,
The other end is hung on gear shaft two, and the torsional direction of the first wind spring and the second wind spring in installation cavity on the contrary, by setting
One wind spring, for suspension ring after hanger earhole is entered, stopper being capable of rapid spinning reduction, closing in the presence of the first wind spring
Suspension ring passage；When suspension ring to be taken out, after suspension ring leave hanger earhole, stopper and can in the presence of the second wind spring is enough fast
Position is replied immediately, realizes automatically reseting for stopper, without manual intervention, improves the efficiency for loading and unloading suspension ring.
Embodiment 5
A kind of drop-proof elevator, including hanger, lower notch 4 and the earhole 1 for placing suspension ring, the lower groove are provided with hanger
Retaining member is provided with mouth 4, the retaining member includes stopper 5 and the closing piece 6 positioned at the lower section of stopper 5, and stopper 5 is logical
Cross the first rotary shaft 7 to be fixed in lower notch 4, closing piece 6 is fixed in lower notch 4 by the second rotary shaft 8, the stopper 5
On be provided with the fore shaft being adapted with closing piece 6, the stopper 5 is connected with the locking of closing piece 6.
Installation cavity 24 is provided with the stopper 5, bearing part 25 is provided with installation cavity 24, the first rotary shaft 7 is through peace
It behave affectedly 24, bearing part 25 is enclosed in the first rotary shaft 7.
First rotary shaft 7 includes gear shaft 1, gear shaft 2 27 and connecting shaft block 28, and gear shaft 1 and gear shaft 2 27 pass through
Connecting shaft block 28 connects, and bearing part 25 is enclosed on the joint of gear shaft 1 and gear shaft 2 27.
The first wind spring 29, the second wind spring 30 and door 31, the first wind spring 29 are additionally provided with the installation cavity 24
One end hang on gear shaft 1, the other end is hung on door 31, and one end of the second wind spring 30 is hung on door 31, the other end
Hang on gear shaft 2 27, the torsional direction of the first wind spring 29 and the second wind spring 30 is opposite.
Second rotary shaft 8 includes closing piece axle 32 and slotting lid 33, and closing piece axle 32 is by integrally formed section 1, section 2 35
Formed with section 3 36, the diameter of section 1 is more than section 2 35, and section 2 35 is identical with the diameter of section 3 36, is cased with reversing in section 2 35
Spring 37, torsionspring 37 are located in the toroidal cavity 38 that section 2 35 is formed with closing piece 6, insert lid 33 and are plugged in section 3 36.
The present embodiment is another better embodiment, and the second rotary shaft includes closing piece axle and inserts lid, closing piece axle by one into
Section one, section two and the section three of type are formed, and the diameter of section one is more than section two, and section two is identical with the diameter of section three, is cased with turning round in section two
Turn spring, torsionspring is located in the toroidal cavity of Duan Eryu closing pieces formation, and slotting lid is plugged in section three, using this specific knot
Second rotary shaft of structure, closing piece can be made rotatably mounted flexibly, when elevator on the ground when, closing piece is in ground force and the
The effect of two rotary shafts is lower and stopper remains disengaged from state；When elevator leaves ground, closing piece due to lose ground force and
Under the effect of second rotary shaft, rotate counterclockwise closing piece by the effect of torsionspring, and then, lock sealed with the fore shaft of stopper
Block is fixed in lower notch by the second rotary shaft, is had and is rotated the characteristics of flexibility is strong and reliability is high.
Embodiment 6
A kind of drop-proof elevator, including hanger, lower notch 4 and the earhole 1 for placing suspension ring, the lower groove are provided with hanger
Retaining member is provided with mouth 4, the retaining member includes stopper 5 and the closing piece 6 positioned at the lower section of stopper 5, and stopper 5 is logical
Cross the first rotary shaft 7 to be fixed in lower notch 4, closing piece 6 is fixed in lower notch 4 by the second rotary shaft 8, the stopper 5
On be provided with the fore shaft being adapted with closing piece 6, the stopper 5 is connected with the locking of closing piece 6.
Installation cavity 24 is provided with the stopper 5, bearing part 25 is provided with installation cavity 24, the first rotary shaft 7 is through peace
It behave affectedly 24, bearing part 25 is enclosed in the first rotary shaft 7.
First rotary shaft 7 includes gear shaft 1, gear shaft 2 27 and connecting shaft block 28, and gear shaft 1 and gear shaft 2 27 pass through
Connecting shaft block 28 connects, and bearing part 25 is enclosed on the joint of gear shaft 1 and gear shaft 2 27.
The first wind spring 29, the second wind spring 30 and door 31, the first wind spring 29 are additionally provided with the installation cavity 24
One end hang on gear shaft 1, the other end is hung on door 31, and one end of the second wind spring 30 is hung on door 31, the other end
Hang on gear shaft 2 27, the torsional direction of the first wind spring 29 and the second wind spring 30 is opposite.
Second rotary shaft 8 includes closing piece axle 32 and slotting lid 33, and closing piece axle 32 is by integrally formed section 1, section 2 35
Formed with section 3 36, the diameter of section 1 is more than section 2 35, and section 2 35 is identical with the diameter of section 3 36, is cased with reversing in section 2 35
Spring 37, torsionspring 37 are located in the toroidal cavity 38 that section 2 35 is formed with closing piece 6, insert lid 33 and are plugged in section 3 36.
The first sealing ring 39 and the second sealing ring 40, the first sealing are provided between the rotary shaft 7 of stopper 5 and first
Circle 39 is enclosed on gear shaft 1, and the second sealing ring 40 is enclosed on gear shaft 2 27.
The 3rd sealing ring 41 and the 4th sealing ring 42, the 3rd sealing ring are provided between the rotary shaft 8 of closing piece 6 and second
41 and the 4th sealing ring 42 be enclosed on closing piece axle 32.
The present embodiment is preferred forms, and retaining member is provided with lower notch, and retaining member includes stopper and position
Closing piece below stopper, stopper are fixed in lower notch by the first rotary shaft, and closing piece is fixed by the second rotary shaft
The fore shaft being adapted with closing piece is provided with lower notch, on stopper, stopper is connected with closing piece locking, when suspension ring enter hanger
During earhole, suspension ring promote stopper to rotate counterclockwise, and open suspension ring passage；Ground is left after elevator lifting, closing piece is losing ground
Rotated in the case of the active force of face, and it is sealed with the fore shaft on stopper, and then can suspension ring be carried out with good stop, prevent
Only suspension ring come off, and improve operation process security reliability.The first sealing ring and are provided between stopper and the first rotary shaft
Two sealing rings, the first sealing ring are enclosed on gear shaft one, and the second sealing ring is enclosed on gear shaft two, can by the setting of sealing ring
Prevent the gap after long-term use between stopper and the first rotary shaft from becoming big, ensure the rotation reliability of stopper, Jin Erbao
Demonstrate,prove overall anticreep performance of the retaining member for suspension ring.The 3rd sealing ring and the 4th close is provided between closing piece and the second rotary shaft
Seal, the 3rd sealing ring and the 4th sealing ring are enclosed on closing piece axle, by the setting of sealing ring, can prevent closing piece and second
Gap increases and causes rocking for closing piece between rotary shaft, ensures the stability and lock ability of closing piece.
Claims (7)
1. a kind of drop-proof elevator, including hanger, lower notch is provided with hanger（4）With the earhole for placing suspension ring（1）, its feature
It is：The lower notch（4）Retaining member is inside provided with, the retaining member includes stopper（5）With positioned at stopper（5）Under
The closing piece of side（6）, stopper（5）Pass through the first rotary shaft（7）It is fixed on lower notch（4）It is interior, closing piece（6）Pass through the second rotary shaft
（8）It is fixed on lower notch（4）It is interior, the stopper（5）On be provided with and closing piece（6）The fore shaft being adapted, the stopper（5）With
Closing piece（6）Locking connects.
A kind of 2. drop-proof elevator according to claim 1, it is characterised in that：The stopper（5）On be provided with installation cavity
（24）, installation cavity（24）Inside it is provided with bearing part（25）, the first rotary shaft（7）Through installation cavity（24）, bearing part（25）It is enclosed on
First rotary shaft（7）On.
A kind of 3. drop-proof elevator according to claim 2, it is characterised in that：First rotary shaft（7）Including gear shaft one
（26）, gear shaft two（27）With connecting shaft block（28）, gear shaft one（26）With gear shaft two（27）Pass through connecting shaft block（28）Connection, bearing part
（25）It is enclosed on gear shaft one（26）With gear shaft two（27）Joint.
A kind of 4. drop-proof elevator according to claim 3, it is characterised in that：The installation cavity（24）Inside it is additionally provided with first
Wind spring（29）, the second wind spring（30）And door（31）, the first wind spring（29）One end hang over gear shaft one（26）On, it is another
End hangs over door（31）On, the second wind spring（30）One end hang over door（31）On, the other end hangs over gear shaft two（27）On, the
One wind spring（29）With the second wind spring（30）Torsional direction it is opposite.
A kind of 5. drop-proof elevator according to claim 1, it is characterised in that：Second rotary shaft（8）Including closing piece axle
（32）With slotting lid（33）, closing piece axle（32）By integrally formed section one（34）, section two（35）With section three（36）Form, Duan Yi（34）
Diameter be more than section two（35）, section two（35）With section three（36）Diameter it is identical, section two（35）On be cased with torsionspring（37）, turn round
Turn spring（37）Positioned at section two（35）With closing piece（6）The toroidal cavity of formation（38）It is interior, insert lid（33）It is plugged on section three（36）On.
A kind of 6. drop-proof elevator according to claim 3, it is characterised in that：The stopper（5）With the first rotary shaft（7）
Between be provided with the first sealing ring（39）With the second sealing ring（40）, the first sealing ring（39）It is enclosed on gear shaft one（26）On, second
Sealing ring（40）It is enclosed on gear shaft two（27）On.
A kind of 7. drop-proof elevator according to claim 5, it is characterised in that：The closing piece（6）With the second rotary shaft（8）It
Between be provided with the 3rd sealing ring（41）With the 4th sealing ring（42）, the 3rd sealing ring（41）With the 4th sealing ring（42）It is enclosed on lock
Block axle（32）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720295915.9U CN206737852U (en) | 2017-03-24 | 2017-03-24 | A kind of drop-proof elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720295915.9U CN206737852U (en) | 2017-03-24 | 2017-03-24 | A kind of drop-proof elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206737852U true CN206737852U (en) | 2017-12-12 |
Family
ID=60557020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720295915.9U Active CN206737852U (en) | 2017-03-24 | 2017-03-24 | A kind of drop-proof elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206737852U (en) |
-
2017
- 2017-03-24 CN CN201720295915.9U patent/CN206737852U/en active Active
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