CN109879197A - A kind of position assurance lock for lifting machine - Google Patents
A kind of position assurance lock for lifting machine Download PDFInfo
- Publication number
- CN109879197A CN109879197A CN201910218893.XA CN201910218893A CN109879197A CN 109879197 A CN109879197 A CN 109879197A CN 201910218893 A CN201910218893 A CN 201910218893A CN 109879197 A CN109879197 A CN 109879197A
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- rack gear
- locking plate
- fixed plate
- oil cylinder
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- 230000005484 gravity Effects 0.000 claims description 4
- 230000007257 malfunction Effects 0.000 claims description 4
- 238000011017 operating method Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 6
- 238000005457 optimization Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000002708 enhancing effect Effects 0.000 description 3
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- 239000000463 material Substances 0.000 description 2
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Abstract
The invention discloses a kind of position assurance locks for lifting machine, including telescopic oil cylinder, fixed plate, attachment base, insurance rack gear and shaft, the upper surface center position of the fixed plate offers rack gear perforation, the upper surface of the fixed plate is symmetrically opened up about rack gear perforation there are two oil cylinder perforation, and the upper surface of the fixed plate is located at the threaded hole opened up between an oil cylinder perforation and rack gear perforation there are two circle center line connecting vertical fixing plate long side.In the present invention, by being connected with attachment spacers by a pair of connecting screw in fixed plate, then the locking plate being slidably connected is gripped between attachment spacers and fixed plate, telescopic cylinder is fixed in fixed plate side, it is fixed with reset spring in the other side of fixed plate, this kind of structure is insured relative to hook, can substantially reduce phenomenon of rupture occurrence probability caused by misoperation, extend insurance service life, reduces maintenance rate.
Description
Technical field
The present invention relates to lifting machine accessory technical fields, and in particular to a kind of position assurance lock for lifting machine.
Background technique
Car lift refers to that vapour of the automobile maintenance industry for vehicle hoisting protects equipment.Lifting machine is conserved in auto repair
In play vital effect, no matter vehicle overhaul or routine maintenance, all be unable to do without it, product property, quality
Quality directly affects the personal safety of maintenance personal.In the different maintenance enterprise of scale, various is either repaired
Comprehensive repair shop or the single curbside shop (such as tire store) of business scope, nearly all equipped with lifting machine.
Most of ultra-thin existing position assurance lock construction of large and small scissors car lift is insured using hook, and operation is not
When being easily broken off, decline in the case where not fully opening, insurance tooth is pressed on safety fastener, and insurance is caused to hook deformation, is used
Service life is short, and maintenance rate is high, while when car lift encounters the situations such as power-off, telescopic oil cylinder failure, and hook insurance is in stinging
Conjunction state is not easy to fall car lift.
Summary of the invention
In order to overcome above-mentioned technical problem, the purpose of the present invention is to provide a kind of position assurances for lifting machine
Then lock is pressed from both sides by being connected with attachment spacers by a pair of connecting screw in fixed plate between attachment spacers and fixed plate
The locking plate for being fixed with and being slidably connected is held, is fixed with telescopic cylinder in fixed plate side, is fixed in the other side of fixed plate multiple
Position spring, this kind of structure are insured relative to hook, can substantially reduce phenomenon of rupture occurrence probability caused by misoperation, extend and protect
Dangerous service life reduces maintenance rate；By being passed inside two gear fixing seats of the upper surface of locking plate by L-type drive rod
It is dynamic to be connected with gear, and push bracket is slidably connected between gear and locking plate, and the upper surface of push bracket is provided with and nibbles with gear
The driving rack of transmission is closed, while being connected with slide block at the corner location of locking plate, and the top of slide block is slidably connected
There is card adapter plate, this kind of structure is able to solve telescopic oil cylinder and telescopic cylinder is in the case of obstacle, passes through table on gear and push bracket
The driving rack in face is engaged transmission, thus locking plate is separated with insurance rack gear, structure novel, enhancing position assurance lock
Using effect.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of position assurance lock for lifting machine, including telescopic oil cylinder, fixed plate, attachment base, insurance rack gear and shaft,
The upper surface center position of the fixed plate offers rack gear perforation, and the upper surface of the fixed plate is symmetrical about rack gear perforation
Open up that there are two oil cylinders to perforate, there are two the upper surface of the fixed plate is located between an oil cylinder perforation and rack gear perforation and opens up
Two long side side walls of the threaded hole of circle center line connecting vertical fixing plate long side, the fixed plate correspond to threaded hole position
Place offers side plate card slot；
There are two the telescopic oil cylinder that telescopic rod runs through oil cylinder perforation, described two flexible oil for the bottom surface connection of the fixed plate
The telescopic rod end of cylinder is welded with attachment base, and shaft is fixed between two attachment bases, and the shaft, which is sequentially connected with, to be passed through
The insurance rack gear of rack gear perforation is worn, the end of the insurance rack gear is welded with the shaft connection ring of socket shaft outer wall；
Described two threaded holes are fixed with attachment spacers by screwing a pair of of connecting screw of connection, the attachment spacers with
Locking plate is slidably connected between fixed plate, corresponding a pair of of the connecting screw position in the surface of the locking plate offers cunning
Slot is welded with slide block at the sidewall corner that the locking plate is perforated far from rack gear, and the slide outside of the slide block is socketed with
Card adapter plate, the upper surface of the locking plate are welded with two groups of teeth wheel fixing seat, and the inside of the two groups of teeth wheel fixing seat passes through L-type
Drive rod is sequentially connected with gear, and push bracket has been gripped between the gear and locking plate, and the upper surface of the push bracket is corresponding
Gear position is provided with the driving rack with gear engaged transmission；
The fixed plate connects far from the first side connecting plate, first side is fixed with inside the side plate card slot of threaded hole
Fishplate bar is fixed with the telescopic cylinder of flexible rod end surface Yu locking plate sidewall extrusion with respect to the end face of locking plate, and the fixed plate is close
The second side connecting plate is fixed with inside the side plate card slot of threaded hole, second side connecting plate is solid with respect to the end face of locking plate
Surely there is the reset spring with locking plate sidewall extrusion.
It is furthermore that: being wider than the facewidth of insurance rack gear in the push bracket, in this way when push bracket and insurance rack gear carry out
It squeezes, when so that push bracket being separated with locking plate, the tooth for insuring rack gear is not in contact with push bracket.
Be furthermore that: the tooth that the movement routine of the locking plate is greater than insurance rack gear is high, and such locking plate is displaced outwardly
When, locking plate is not contacted with insurance rack gear.
Be furthermore that: the tooth that a quarter of the perimeter of the gear is greater than insurance rack gear is high, in this way when gear rotates
A quarter bowlder, locking plate are not contacted with insurance rack gear.
Be furthermore that: the side wall of the card adapter plate offers the long stripes through hole for moving up and down and rotating for card adapter plate,
Facilitate and is attached after overturning card adapter plate with fixed plate.
Be furthermore that: the side wall profile of the push bracket is the horizontal L-type structure placed downward, and the locking plate is opposite
The end face of insurance rack gear, which is offered, extends downwardly the groove that section carves conjunction with push bracket, this kind of structure can be improved locking plate for insurance
The locking effect of rack gear.
Be furthermore that: the push bracket extends downwardly section and when locking plate agrees with, the elbow of L-type drive rod vertically to
On, facilitate casing and the elbow of L-type drive rod to be attached.
A kind of application method that the position assurance for lifting machine is locked, the specifically used operating procedure of position assurance lock
Are as follows:
Step 1: adjusting the telescopic rod elongation of telescopic oil cylinder, so that insurance rack gear is not with the upper end surface of locking plate in crowded
Pressure condition, while quickly the telescopic rod of control telescopic cylinder pushes locking plate to be moved away from the direction of locking plate, makes
It obtains locking plate and is not in fastening state with insurance rack gear；
Step 2: controlling the telescopic rod elongation of telescopic oil cylinder or shorten to adapt to the requirement of the lift height of lifting machine,
After telescopic oil cylinder extends or shortens to designated position, the telescopic rod for controlling telescopic cylinder is shunk, so that locking plate is resetting
Under the squeezing action of spring, locking plate is driven to be clamped with the tooth for insuring rack gear, to lock lifting machine；
Step 3: when lifting machine is in power-off or malfunction, when cannot normally start telescopic oil cylinder and telescopic cylinder,
Staff will cover pipe sleeve on L-type drive rod, and then come over compressing casing downwards, drive L-type by casing
Drive rod rotates, and band moving gear rotates L-type drive rod in the course of rotation, and the biography of gear and push bracket upper surface
Carry-over bar is engaged transmission, so that push bracket is moved towards with gear, the push bracket due to moving towards and insurance rack gear are squeezed, and makes
Locking plate towards mobile away from the direction of insurance rack gear so that the tooth of insurance rack gear is not squeezed with locking plate；
Step 4: the slide block for pulling locking plate is mobile towards the second side connecting plate direction, then above mentions card adapter plate simultaneously
Overturning realizes the fixation to locking plate so that card adapter plate and fixed plate side wall are clamped；
Step 5: driving L-type drive rod to overturn to vertical state by casing, so that push bracket is returned to original state,
By carrier at the top of lifting machine and the gravity of its own, telescopic oil cylinder is forced to shrink, after dropping to specified altitude assignment, disconnects clamping
Clamping between plate and fixed plate side wall, under the squeezing action of reset spring, drive locking plate and insure the tooth of rack gear into
Row clamping, to lock lifting machine.
Beneficial effects of the present invention:
1, by being connected with attachment spacers by a pair of connecting screw in fixed plate, then in attachment spacers and fixed plate
Between grip the locking plate being slidably connected, be fixed with by the first side connecting plate and locking plate in the one side wall of fixed plate
Inconsistent telescopic cylinder is fixed with the reset bullet mutually squeezed with locking plate in the other side of fixed plate by the second side connecting plate
Spring, this kind of structure are insured relative to hook, can substantially reduce phenomenon of rupture occurrence probability caused by misoperation, and extending insurance makes
With the service life, maintenance rate is reduced；
2, two groups of teeth wheel fixing seat is welded with by the upper surface in locking plate, then led to inside two gear fixing seats
It crosses L-type drive rod and is sequentially connected with gear, and slidably connect push bracket between gear and locking plate, and the upper surface of push bracket is set
It is equipped with the driving rack with gear engaged transmission, while being connected with slide block at the corner location of locking plate, and slide block
Top slidably connects card adapter plate, this kind of structure is able to solve telescopic oil cylinder and telescopic cylinder is in the case of obstacle, passes through tooth
Wheel and the driving rack of push bracket upper surface are engaged transmission, to locking plate be separated with insurance rack gear, structure novel, enhancing
The using effect of position assurance lock.
Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Fig. 1 is overall structure of the present invention；
Fig. 2 is partial enlarged view at the A of Fig. 1 in the present invention；
Fig. 3 is the explosive view that position assurance is locked in the present invention；
Fig. 4 is the structural schematic diagram of fixed plate in the present invention；
Fig. 5 is the structural schematic diagram of the second side connecting plate in the present invention；
Fig. 6 is the structural schematic diagram that rack gear is insured in the present invention；
Fig. 7 is the structural schematic diagram of locking plate in the present invention；
Fig. 8 is the structural schematic diagram of push bracket in the present invention.
In figure: 1, telescopic oil cylinder；2, fixed plate；21, oil cylinder is perforated；22, rack gear is perforated；23, side plate card slot；24, screw thread
Hole；3, attachment base；4, insure rack gear；41, shaft connection ring；5, shaft；6, locking plate；61, gear fixing seat；62, L-type is driven
Bar；63, gear；64, push bracket；641, driving rack；65, sliding slot；66, card adapter plate；67, slide block；7, connecting screw；8, it connects
Gasket；9, the first side connecting plate；10, telescopic cylinder；11, the second side connecting plate；111, reset spring.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, all other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
It please refers to shown in Fig. 1-8, a kind of position assurance lock for lifting machine, including telescopic oil cylinder 1, fixed plate 2, connection
Seat 3, insurance rack gear 4 and shaft 5, the upper surface center position of fixed plate 2 offer rack gear perforation 22, the upper table of fixed plate 2
Face is symmetrically opened up about rack gear perforation 22 there are two oil cylinder perforation 21, the upper surface of fixed plate 2 be located at an oil cylinder perforation 21 with
The threaded hole 24 there are two 2 long side of circle center line connecting vertical fixing plate, two long sides of fixed plate 2 are opened up between rack gear perforation 22
Avris wall corresponds to 24 position of threaded hole and offers side plate card slot 23；
There are two telescopic rods through the telescopic oil cylinder 1 of oil cylinder perforation 21, two telescopic oil cylinders 1 for the bottom surface connection of fixed plate 2
Telescopic rod end be welded with attachment base 3, shaft 5 is fixed between two attachment bases 3, shaft 5 is sequentially connected with through rack gear
The end of the insurance rack gear 4 of perforation 22, insurance rack gear 4 is welded with the shaft connection ring 41 of socket 5 outer wall of shaft；
Two threaded holes 24 are fixed with attachment spacers 8 by screwing a pair of of connecting screw 7 of connection, attachment spacers 8 and solid
Locking plate 6 is slidably connected between fixed board 2, corresponding a pair of of 7 position of connecting screw in the surface of locking plate 6 offers sliding slot
65, locking plate 6 is welded with slide block 67 at the sidewall corner far from rack gear perforation 22, and the slide outside of slide block 67 is socketed with card
Fishplate bar 66, the upper surface of locking plate 6 are welded with two groups of teeth wheel fixing seat 61, and the inside of two groups of teeth wheel fixing seat 61 is passed by L-type
Lever 62 is sequentially connected with gear 63, and push bracket 64 has been gripped between gear 63 and locking plate 6, and the upper surface of push bracket 64 is corresponding
63 position of gear is provided with the driving rack 641 with 63 engaged transmission of gear；
Fixed plate 2 is connected far from the first side connecting plate 9, the first side is fixed with inside the side plate card slot 23 of threaded hole 24
Plate 9 is fixed with the telescopic cylinder 10 of flexible rod end surface Yu 6 sidewall extrusion of locking plate with respect to the end face of locking plate 6, and fixed plate 2 is close
The second side connecting plate 11 is fixed with inside the side plate card slot 23 of threaded hole 24, the opposite locking plate 6 of the second side connecting plate 11
End face is fixed with the reset spring 111 with 6 sidewall extrusion of locking plate.
As a kind of technical optimization scheme of the invention, the facewidth of insurance rack gear 4 is wider than in push bracket 64, in this way when pushing away
Frame 64 is squeezed with insurance rack gear 4, and when so that push bracket 64 being separated with locking plate 6, the tooth for insuring rack gear 4 does not occur with push bracket 64
Contact.
As a kind of technical optimization scheme of the invention, the tooth that the movement routine of locking plate 6 is greater than insurance rack gear 4 is high, this
When sample locking plate 6 is displaced outwardly, locking plate 6 is not contacted with insurance rack gear 4.
As a kind of technical optimization scheme of the invention, a quarter of the perimeter of gear 63 is greater than the tooth of insurance rack gear 4
Height, in this way when gear 63 rotates a quarter bowlder, locking plate 6 is not contacted with insurance rack gear 4.
As a kind of technical optimization scheme of the invention, the side wall of card adapter plate 66 offer move up and down for card adapter plate 66 and
The long stripes through hole of rotation facilitates and is attached after overturning card adapter plate 66 with fixed plate 2.
As a kind of technical optimization scheme of the invention, the side wall profile of push bracket 64 is the horizontal L-type structure placed downward,
And the end face of the opposite insurance rack gear 4 of locking plate 6 offers and extends downwardly the groove that section carves conjunction with push bracket 64, this kind of structure can mention
Locking effect of the high locking plate 6 for insurance rack gear 4.
As a kind of technical optimization scheme of the invention, push bracket 64 extends downwardly section and when locking plate 6 agrees with, and L-type passes
The elbow of lever 62 straight up, facilitates casing and the elbow of L-type drive rod 62 to be attached.
A kind of application method that the position assurance for lifting machine is locked, the specifically used operating procedure of position assurance lock
Are as follows:
Step 1: adjust telescopic oil cylinder 1 telescopic rod elongation so that insurance rack gear 4 not with the upper end surface of locking plate 6 in
Squeezed state, while quickly the telescopic rod of control telescopic cylinder 10 pushes locking plate 6 to be moved away from the direction of locking plate 6
It is dynamic, so that locking plate 6 is not in fastening state with insurance rack gear 4；
Step 2: the telescopic rod elongation of control telescopic oil cylinder 1 is shortened to adapt to the requirement of the lift height of lifting machine,
After telescopic oil cylinder 1 extends or shortens to designated position, the telescopic rod of control telescopic cylinder 10 is shunk, so that locking plate 6 exists
Under the squeezing action of reset spring 111, locking plate 6 is driven to be clamped with the tooth for insuring rack gear 4, to lock lifting machine；
Step 3: when lifting machine be in power-off or malfunction, cannot normally start telescopic oil cylinder 1 and telescopic cylinder 10
When, staff will cover pipe sleeve on L-type drive rod 62, and then come over compressing casing downwards, pass through sleeve belt
Dynamic L-type drive rod 62 rotates, and band moving gear 63 rotates L-type drive rod 62 in the course of rotation, and gear 63 with
The driving rack 641 of 64 upper surface of push bracket is engaged transmission, so that push bracket 64 is moved towards with gear 63, due to moving towards
Push bracket 64 and insurance rack gear 4 squeeze so that locking plate 6 is towards mobile away from the direction of insurance rack gear 4, so that insurance rack gear 4
Tooth not with locking plate 6 squeeze；
Step 4: the slide block 67 for pulling locking plate 6 is mobile towards 11 direction of the second side connecting plate, then by card adapter plate 66
It above mentions and overturns, so that card adapter plate 66 and 2 side wall of fixed plate are clamped, realize the fixation to locking plate 6；
Step 5: drive the overturning of L-type drive rod 62 to vertical state by casing, so that push bracket 64 is returned to initial shape
State forces telescopic oil cylinder 1 to shrink by carrier at the top of lifting machine and the gravity of its own, after dropping to specified altitude assignment, disconnects
Clamping between 2 side wall of card adapter plate 66 and fixed plate drives locking plate 6 and insurance under the squeezing action in reset spring 111
The tooth of rack gear 4 is clamped, to lock lifting machine.
Beneficial effects of the present invention:
1, by being connected with attachment spacers 8 by a pair of of connecting screw 7 in fixed plate 2, then in attachment spacers 8 and admittedly
The locking plate 6 being slidably connected is gripped between fixed board 2, is fixed in the one side wall of fixed plate 2 by the first side connecting plate 9
The telescopic cylinder 10 inconsistent with locking plate 6 is fixed with and locking plate in the other side of fixed plate 2 by the second side connecting plate 11
The reset spring 111 that 6 phases squeeze, this kind of structure are insured relative to hook, can substantially reduce phenomenon of rupture caused by misoperation
Occurrence probability extends insurance service life, reduces maintenance rate；
2, by being welded with two groups of teeth wheel fixing seat 61 in the upper surface of locking plate 6, then in two gear fixing seats 61
Inside is sequentially connected with gear 63 by L-type drive rod 62, and push bracket 64 is slidably connected between gear 63 and locking plate 6,
And the upper surface of push bracket 64 is provided with the driving rack 641 with 63 engaged transmission of gear, while at the corner location of locking plate 6
It is connected with slide block 67, and the top of slide block 67 slidably connects card adapter plate 66, this kind of structure is able to solve 1 He of telescopic oil cylinder
Telescopic cylinder 10 is in the case of obstacle, is engaged transmission by the driving rack 641 of gear 63 and 64 upper surface of push bracket, from
And locking plate 6 is separated with insurance rack gear 4, structure novel, the using effect of enhancing position assurance lock.
Working principle: in use, adjust telescopic oil cylinder 1 telescopic rod elongation so that insurance rack gear 4 not with locking plate 6
In squeezed state, while quickly, the telescopic rod of control telescopic cylinder 10 pushes locking plate 6 away from locking plate 6 for upper end surface
Direction is moved, so that locking plate 6 is not in fastening state with insurance rack gear 4, the telescopic rod for then controlling telescopic oil cylinder 1 is stretched
It is long perhaps to shorten the control to adapt to the requirement of the lift height of lifting machine after telescopic oil cylinder 1 extends or shortens to designated position
The telescopic rod of telescopic cylinder 10 processed is shunk, so that locking plate 6 under the squeezing action of reset spring 111, drives locking plate 6 and protects
The tooth of dangerous rack gear 4 is clamped, to lock lifting machine；When lifting machine be in power-off or malfunction, cannot normally start
When telescopic oil cylinder 1 and telescopic cylinder 10, staff will cover pipe sleeve on L-type drive rod 62, then come over to
Lower compression casing drives L-type drive rod 62 to rotate by casing, and L-type drive rod 62 is in the course of rotation with moving gear
63 rotate, and gear 63 and the driving rack 641 of 64 upper surface of push bracket are engaged transmission, so that push bracket 64 and gear 63
It moves towards, since the push bracket 64 and insurance rack gear 4 that move towards squeeze, so that locking plate 6 is towards away from the side for insuring rack gear 4
To movement, so that the tooth of insurance rack gear 4 is not squeezed with locking plate 6, the slide block 67 for then pulling locking plate 6 connects towards second side
11 direction of fishplate bar is mobile, and then card adapter plate 66 is above mentioned and overturn, so that card adapter plate 66 and 2 side wall of fixed plate are clamped,
It realizes the fixation to locking plate 6, then drives the overturning of L-type drive rod 62 to vertical state by casing, so that push bracket 64 be returned
Return to original state, by carrier at the top of lifting machine and the gravity of its own, forces telescopic oil cylinder 1 to shrink, drop to specified
After height, the clamping between card adapter plate 66 and 2 side wall of fixed plate is disconnected, under the squeezing action in reset spring 111, drives lock
Buckle 6 and the tooth of insurance rack gear 4 are clamped, to lock lifting machine.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Above content is only citing made for the present invention and explanation, affiliated those skilled in the art are to being retouched
The specific embodiment stated does various modifications or additions or is substituted in a similar manner, and without departing from invention or surpasses
More range defined in the claims, is within the scope of protection of the invention.
Claims (8)
1. a kind of position assurance for lifting machine is locked, including telescopic oil cylinder (1), fixed plate (2), attachment base (3), insurance rack gear
(4) and shaft (5), which is characterized in that the upper surface center position of the fixed plate (2) offers rack gear perforation (22), institute
The upper surface for stating fixed plate (2) is symmetrically opened up about rack gear perforation (22) there are two oil cylinder perforation (21), the fixed plate (2)
Upper surface, which is located between oil cylinder perforation (21) and rack gear perforation (22), opens up that there are two circle center line connecting vertical fixing plate (2) length
The threaded hole (24) of side, two long side side walls of the fixed plate (2) correspond to threaded hole (24) position and offer
Side plate card slot (23)；
There are two telescopic rods for the bottom surface connection of the fixed plate (2) through the telescopic oil cylinder (1) of oil cylinder perforation (21), described two
The telescopic rod end of telescopic oil cylinder (1) is welded with attachment base (3), is fixed with shaft (5), institute between two attachment bases (3)
It states shaft (5) and is sequentially connected with the insurance rack gear (4) through rack gear perforation (22), the end of insurance rack gear (4) is welded with
It is socketed the shaft connection ring (41) of shaft (5) outer wall；
Described two threaded holes (24) are fixed with attachment spacers (8), the connection by screwing a pair of of connecting screw (7) of connection
It is slidably connected between gasket (8) and fixed plate (2) locking plate (6), corresponding a pair of of the connecting screw in the surface of the locking plate (6)
(7) position offers sliding slot (65), and the locking plate (6) is welded at the sidewall corner far from rack gear perforation (22) and dials
The slide outside of motion block (67), the slide block (67) is socketed with card adapter plate (66), and the upper surface of the locking plate (6) is welded with
Two groups of teeth wheel fixing seat (61), the inside of the two groups of teeth wheel fixing seat (61) are sequentially connected with teeth by L-type drive rod (62)
It takes turns (63), has been gripped push bracket (64) between the gear (63) and locking plate (6), the upper surface of the push bracket (64) is corresponding
Gear (63) position is provided with the driving rack (641) with gear (63) engaged transmission；
Side plate card slot (23) of the fixed plate (2) far from threaded hole (24) is internal to be fixed with the first side connecting plate (9), institute
It states the first side connecting plate (9) and is fixed with the flexible of flexible rod end surface and locking plate (6) sidewall extrusion with respect to the end face of locking plate (6)
Cylinder (10), the fixed plate (2) are fixed with the second side connecting plate inside the side plate card slot (23) of threaded hole (24)
(11), second side connecting plate (11) is fixed with and the reset bullet of locking plate (6) sidewall extrusion with respect to the end face of locking plate (6)
Spring (111).
2. a kind of position assurance for lifting machine according to claim 1 is locked, which is characterized in that the push bracket (64)
Inside it is wider than the facewidth of insurance rack gear (4).
3. a kind of position assurance for lifting machine according to claim 1 is locked, which is characterized in that the locking plate (6)
Movement routine be greater than insurance rack gear (4) tooth it is high.
4. a kind of position assurance for lifting machine according to claim 1 is locked, which is characterized in that the gear (63)
The tooth that a quarter of perimeter is greater than insurance rack gear (4) is high.
5. a kind of position assurance for lifting machine according to claim 1 is locked, which is characterized in that the card adapter plate (66)
Side wall offer the long stripes through hole for moving up and down and rotating for card adapter plate (66).
6. a kind of position assurance for lifting machine according to claim 1 is locked, which is characterized in that the push bracket (64)
Side wall profile is the horizontal L-type structure placed downward, and the end face of opposite insurance rack gear (4) of the locking plate (6) offer with
Push bracket (64) extends downwardly the groove that section carves conjunction.
7. a kind of position assurance for lifting machine according to claim 6 is locked, which is characterized in that the push bracket (64) to
When lower extended segment and locking plate (6) are agreed with, the elbow of L-type drive rod (62) is straight up.
8. a kind of position assurance for lifting machine according to claim 1 is locked, which is characterized in that position assurance lock
Specifically used operating procedure are as follows:
Step 1: adjusting the telescopic rod elongation of telescopic oil cylinder (1), so that insuring rack gear (4) not upper end surface with locking plate (6)
In squeezed state, while the telescopic rod for quickly controlling telescopic cylinder (10) pushes locking plate (6) away from the side of locking plate (6)
To being moved, so that locking plate (6) is not in fastening state with insurance rack gear (4)；
Step 2: control telescopic oil cylinder (1) telescopic rod elongation or shorten adapt to lifting machine lift height requirement, to
After telescopic oil cylinder (1) extends or shortens to designated position, the telescopic rod of control telescopic cylinder (10) is shunk, so that locking plate
(6) under the squeezing action of reset spring (111), locking plate (6) are driven to be clamped with the tooth for insuring rack gear (4), to lock
Tight lifting machine；
Step 3: when lifting machine be in power-off or malfunction, cannot normally start telescopic oil cylinder (1) and telescopic cylinder (10)
When, staff will cover pipe sleeve on L-type drive rod (62), and then come over compressing casing downwards, pass through casing
L-type drive rod (62) are driven to rotate, band moving gear (63) rotates L-type drive rod (62) in the course of rotation, and
Gear (63) and the driving rack (641) of push bracket (64) upper surface are engaged transmission, so that push bracket (64) and gear (63) phase
To movement, since the push bracket (64) moved towards and insurance rack gear (4) squeeze, so that locking plate (6) is towards away from insurance rack gear
(4) direction is mobile, so that the tooth of insurance rack gear (4) is not squeezed with locking plate (6)；
Step 4: the slide block (67) for pulling locking plate (6) is mobile towards the second side connecting plate (11) direction, then by card adapter plate
(66) it above mentions and overturns, so that card adapter plate (66) and fixed plate (2) side wall are clamped, realize the fixation to locking plate (6)；
Step 5: drive L-type drive rod (62) overturning to vertical state by casing, so that push bracket (64) is returned to initial shape
State forces telescopic oil cylinder (1) to shrink by carrier at the top of lifting machine and the gravity of its own, after dropping to specified altitude assignment, breaks
The clamping between card adapter plate (66) and fixed plate (2) side wall is opened, under the squeezing action in reset spring (111), drives lock
Plate (6) and the tooth of insurance rack gear (4) are clamped, to lock lifting machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910218893.XA CN109879197B (en) | 2019-03-21 | 2019-03-21 | Positioning safety lock for lifter and use method thereof |
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| CN201910218893.XA CN109879197B (en) | 2019-03-21 | 2019-03-21 | Positioning safety lock for lifter and use method thereof |
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| CN109879197A true CN109879197A (en) | 2019-06-14 |
| CN109879197B CN109879197B (en) | 2020-03-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111547646A (en) * | 2020-05-06 | 2020-08-18 | 大大科技(宁国)有限公司 | High jack of security |
| CN117549436A (en) * | 2023-12-25 | 2024-02-13 | 东台施迈尔新材料科技有限公司 | Indentation processing device for ceramic substrate |
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| EP2053010A2 (en) * | 2007-10-19 | 2009-04-29 | MAHA Maschinenbau Haldenwang GmbH & Co. KG | Locking device |
| KR20120033446A (en) * | 2010-09-30 | 2012-04-09 | 정미순 | The lift fixing equipment for an automobil |
| CN102849653A (en) * | 2012-09-22 | 2013-01-02 | 济南华北升降平台制造有限公司 | Downward gliding prevention device of scissor type lifting platform |
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| US9469513B2 (en) * | 2014-01-05 | 2016-10-18 | II James O Rogers | Ratcheting, self-aligning load-support device |
| CN206970133U (en) * | 2017-05-04 | 2018-02-06 | 太仓成铭液压机械有限公司 | A kind of shearing type lifter safeties |
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| EP2053010A2 (en) * | 2007-10-19 | 2009-04-29 | MAHA Maschinenbau Haldenwang GmbH & Co. KG | Locking device |
| KR20120033446A (en) * | 2010-09-30 | 2012-04-09 | 정미순 | The lift fixing equipment for an automobil |
| CN102849653A (en) * | 2012-09-22 | 2013-01-02 | 济南华北升降平台制造有限公司 | Downward gliding prevention device of scissor type lifting platform |
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| CN203199943U (en) * | 2013-04-15 | 2013-09-18 | 营口冠华良易汽保设备有限公司 | Safety lock for scissor lift |
| US9469513B2 (en) * | 2014-01-05 | 2016-10-18 | II James O Rogers | Ratcheting, self-aligning load-support device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111547646A (en) * | 2020-05-06 | 2020-08-18 | 大大科技(宁国)有限公司 | High jack of security |
| CN117549436A (en) * | 2023-12-25 | 2024-02-13 | 东台施迈尔新材料科技有限公司 | Indentation processing device for ceramic substrate |
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| Publication number | Publication date |
|---|---|
| CN109879197B (en) | 2020-03-17 |
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