CN214295431U - Rotary type tire dismounting machine - Google Patents

Abstract

The utility model discloses a rotary tire changer, which comprises a first locking component, a second locking component, a rotary component and a bird head lifting component, wherein the second locking component is arranged at the top of the first locking component. The utility model has the advantages of compact structure, it is exquisite, the energy consumption is little, adopt a plurality of big parts, remove or carry through separately carrying mode, than current various different types, can only fixed mounting or use the tire dismouting machine of wheel push-and-pull walking mode, it is all very convenient to carry and carry, can dismouting formal dress type wheel hub tire and anti-dress type wheel hub tire, and the wheel hub tire of the inner tube of a tyre is taken in the dismouting, moreover, the steam generator is simple in operation, the working property is reliable and stable, the explosion-proof type tire of dismouting high strength has been reduced, the degree of difficulty of super wide tread type high-end tire and thickening heavy load type tire, the manufacturing cost is saved, reduce material and energy loss, it is more energy-concerving and environment-protective, the work efficiency is improved, promote the quality of service of trade when bringing convenience for the user.

Description

Rotary type tire dismounting machine

Technical Field

The utility model relates to a dismouting machine technical field specifically is a gyration type tire dismouting machine.

Background

A rotary tyre changer, also called tyre changer, tyre changer for mounting and dismounting tyres, can be: the tire of different vehicles such as automobiles, electric vehicles, agricultural vehicles, engineering vehicles, heavy trucks and the like is replaced, and the tire replacement device is a necessary device for automobile maintenance factories and 4S shops. The main common at present are: the electric, pneumatic, electric hybrid and electric hydraulic type tire mounting and dismounting machines are four types, but the common tire mounting and dismounting machine can not mount and dismount tires of different vehicle types, thereby greatly improving the production cost and energy waste, and has slower dismounting speed and more complicated operation, for example, some mounting and dismounting machines can only mount and dismount a car but can not mount and dismount a truck, or can only mount and dismount a car but can not mount and dismount a car, or can only mount and dismount a vacuum tire but can not mount and dismount a tire with an inner tube, the machine has large power, high energy consumption, single function, higher manufacturing cost, unstable mounting and dismounting quality, easily damages a tire seam, greatly reduces the practicability of the mounting and dismounting machine, brings great inconvenience to users, and the mounting and dismounting machines of high-end vehicle types such as high-strength explosion-proof tires, ultra-wide tread tires, thickened heavy-load tires and the like and the tire mounting and dismounting machine of special tires are basically monopolized abroad, the price is high, and certain economic burden is brought to users.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gyration type tire dismouting machine to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a rotary tire changing machine comprising: the bird head lifting device comprises a first locking assembly, a second locking assembly, a rotating assembly and a bird head lifting assembly, wherein the second locking assembly is arranged at the top of the first locking assembly, the rotating assembly is arranged at the top of the second locking assembly, and the bird head lifting assembly is arranged on the outer side of the rotating assembly;

the first locking assembly includes: the support leg is arranged at the bottom of the first base plate, the first upright column is arranged at the top of the first boss and penetrates through the bottom of the first boss, the first center column mounting hole is arranged at the top of the first upright column, the center column locking screw is arranged on the surface of the first upright column and penetrates through the inner wall and the outer wall of the first upright column, and the first hub locking screw is arranged at the top of the first base plate and penetrates through the bottoms of the first base plate and the first boss;

the second locking assembly includes: the wheel hub locking device comprises a second base plate, a second boss, a second upright post, a second central column mounting hole and a second wheel hub locking screw, wherein the second boss is arranged at the top of the second base plate;

the swivel assembly includes: the novel electric drill comprises a center post, a rotary big fluted disc, a rotary bearing seat, a rotary central shaft, a first crowbar baffle, a second crowbar baffle, a bird head mounting hole, a bird head locking screw, a rotary pinion, a small bearing seat, a third crowbar baffle, a speed reducer and an external power input connector, wherein the bottom of the center post penetrates through the second center post mounting hole, the second upright post and the first upright post and extends to the inside of the first upright post, a rubber ring is arranged on the outer surface of the center post, the rotary big fluted disc is arranged at the top of the center post, the rotary bearing seat is arranged at the top of the rotary big fluted disc, the rotary central shaft is arranged in the rotary bearing seat and penetrates through two ends of the rotary bearing seat, the first crowbar baffle is arranged at the outer side of the rotary bearing seat, a baffle reinforcing bone plate is arranged at the back of the first crowbar baffle, and the second crowbar baffle is arranged at the top of the first crowbar baffle, the third crowbar baffle is arranged on the outer side of the rotary bearing seat and opposite to the first crowbar baffle, the rotary pinion is arranged on the outer side of the rotary big fluted disc and is meshed with the rotary big fluted disc, the small bearing seat is arranged at the top of the rotary pinion, the bird head mounting hole is arranged on the outer side of the small bearing seat, the bird head locking screw is arranged on the outer side of the third crowbar baffle, the speed reducer is arranged at the top of the small bearing seat, the external power input connector is arranged at the top of the speed reducer, and a hand-held handle is arranged on the shell of the speed reducer;

bird head lifting unit includes: bird head hone lamella, first bearing, second bearing, bird head lift post, lift post mount pad, horizontal arm, bird head lift post locking screw, expansion plate, first bearing, second bearing and expansion plate are all installed on the surface of bird head hone lamella, the outside at bird head hone lamella is installed to bird head lift post nestification, lift post mount pad sets up the surface at bird head lift post, the outside at lift post mount pad is installed to horizontal arm, bird head lift post locking screw sets up the surface at lift post mount pad, and runs through the inside and outside wall of lift post mount pad, horizontal arm installs the inside at bird head mounting hole.

Preferably, the number of the supporting legs is four, and the four supporting legs are respectively arranged on four sides of the bottom of the first bottom plate.

Preferably, the shape of the rubber ring is a hollow cone.

Preferably, the annular groove of the hub uses a first hub locking screw at the upright hub far away from one side of the hub screw hole, and the hub is mounted and locked on the first boss to disassemble and assemble the tire.

Preferably, the annular groove of the hub uses a second hub locking screw on the reverse hub close to one side of the hub screw hole, and the tire is mounted and locked on the second boss in a detachable mode.

Preferably, the bird head mounting hole is formed in the same outer side of the small bearing seat and the rotary bearing seat, and the horizontal arm is not blocked by the rotary bearing seat when stretching inside the bird head mounting hole.

Preferably, the external power input joint provides rotary power for the rotary pinion through a bearing at the top of the speed reducer, the speed reducer and the small bearing seat.

Preferably, the rotary bearing seat, the first crowbar baffle, the second crowbar baffle, the third crowbar baffle, the bird head locking screw, the small bearing seat, the speed reducer, the external power input connector and the hand-held handle form a rotary travelling mechanism together.

Preferably, the rotary pinion is meshed with the rotary big fluted disc, and when the rotary pinion rotates, the rotary walking mechanism and the bird head lifting assembly are driven to walk around the periphery of the rotary big fluted disc by taking the rotary central shaft as the center.

Preferably, the utility model discloses when the dismouting tire, only gyration running gear and bird head lifting unit encircle the peripheral walking of gyration big fluted disc, and first locking Assembly, second locking Assembly, center post, gyration center pin, gyration big fluted disc and wheel hub tire for gyration running gear and bird head lifting unit motionless.

Preferably, the first bearing and the second bearing are each secured to the outer surface of the bone plate using a screw lock, which allows for quick replacement of the screw or bearing when the screw or bearing is damaged.

Preferably, the first bearing and the expansion plate walk close to the outer circular arc edge of the hub when the machine works, and the second bearing walks along the outer circular arc edge of the end face of the hub at the same time.

Preferably, the outer cylindrical surface of the second bearing may be replaced by an outer cylindrical baffle formed integrally with the bird's head plate.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses no specific operational environment requirement, can be in any weather and environment normal use.

2. The utility model discloses a quick-witted compact structure, durable, the spoilage to the tire rim is low, and dismouting tire high quality has greatly reduced the degree of difficulty of high-end tires and special type tires such as dismouting high strength explosion-proof type tire, super wide tread type tire and thickening heavy load type tire, lets user's work become lighter, has promoted the quality of service of trade.

3. The utility model discloses a unit structure is light and handy, adopts a plurality of big parts, removes or carries through separately carrying mode, than current various different types, can only fixed mounting or use the large-scale or heavy tire dismouting machine of wheel push-and-pull walking mode, no matter carry or carry all very convenient.

4. The utility model discloses a unit is multipurpose equipment, and the unit commonality is good, can dismouting vacuum child, include: the wheel hub tires with inner tubes (the wheel hub with the wheel hub provided with the wheel rim pressing strip on the side with the hub screw hole, such as the wheel hubs of medium-sized trucks, large-sized trucks and heavy-duty engineering vehicles) can be disassembled and assembled, and various non-standard tires (such as wheel type agricultural vehicles, small-sized wheel type engineering vehicles and non-commercial type wheel hub tires) can be disassembled and assembled. The operation is simple, reliable and stable, the working efficiency is improved, and great convenience is brought to a user.

5. The utility model discloses a speed reducer is installed in the place ahead one side of gyration running gear working motion direction, makes the speed reducer do work with the pulling force mode to bird's head lifting unit, has shortened the moment of load, and gyration running gear's speed reducer structure is exquisite, compact, durable simultaneously, can change the electric tool or the pneumatic tool of volume little, light in weight, miniwatt, function singleness into big torque output effectively, provides powerful walking power for gyration running gear, more laborsaving power saving energy-concerving and environment-protective.

6. Three crowbar baffles on the upper layer of the rotary travelling mechanism can directly clamp the crowbars without using a bird head lifting assembly, and the rotary travelling mechanism is accompanied by walking around the outer edge of the hub to rapidly disassemble waste tires and also can use bird heads to nondestructively disassemble the tires. The user can flexibly use the disassembly mode according to the actual condition, and the working efficiency is improved.

7. The portable handle is installed on the shell of speed reducer, and is on same straight line with gyration subassembly and bird head lifting unit's focus, when operation and carry automatic balance gyration subassembly and bird head lifting unit's weight, strengthened the comfort of operation and carrying.

8. The bird head mounting hole of the rotary walking mechanism is formed in the outer side of the rotary bearing seat, the horizontal arm is not blocked by the rotary bearing seat when the bird head mounting hole is stretched and retracted inside the bird head mounting hole, the size of the horizontal arm can be longer and larger, a single machine can disassemble and assemble tires in various sizes, and the use cost is reduced.

9. The bird head lifting assembly adopts the design of telescopic lifting and forced locking and fixing, can be flexibly suitable for disassembling and assembling various different types of hub tires, comprises various vacuum tires and hub tires with steel ring pressing strips (with inner tires), saves the use cost and improves the working efficiency.

10. The second locking assembly and the first locking assembly adopt nested quick butt joint and disassembly and assembly modes, and the function of quickly converting and disassembling the forward and reverse assembling type hub tire is increased compared with other types of tire disassembling and assembling machines.

11. The quotation of first locking Assembly and second locking Assembly adopts multilayer boss structural design, and the diameter of every layer of boss can correspond and pack into the centre bore of multiple different grade type wheel hub, provides accurate location benchmark before the dismouting wheel hub tire, improves work efficiency.

12. When the vacuum tire of the normally installed wheel hub is disassembled (namely, the wheel hub on the side of the annular groove of the wheel hub far away from the screw hole of the wheel hub), the tire can be disassembled and installed easily by directly using the first locking assembly, the rotary assembly and the bird head lifting assembly without using a conical rubber ring and a second locking assembly, and the operation is simple and rapid.

13. When the vacuum tire of the forward-mounted type and reverse-mounted type wheel hubs is installed, the outer cylindrical surface of the second bearing pushes the tire bead to be installed in the wheel hub groove to the outer side of the edge of the wheel hub in advance, meanwhile, the expansion plate properly separates the tire bead being pressed into the wheel hub groove from the wheel hub, and forcibly prevents the tire bead from accidentally drilling into a gap between the bottom of the second bearing and the upper edge of the wheel hub, so that the tire bead is prevented from being damaged by a bird head, meanwhile, the bottom of the first bearing of the bird head is pressed on the tire bead, and the tire bead is pressed into the wheel hub groove in a rolling mode, so that the tire bead is effectively prevented from being accidentally cracked and damaged at the intersection of the tire bead and the wheel hub edge due to the fact that the self weight of the tire is pressed downwards, the bending angle of the tire bead is too large, and the bearing is pressed downwards too tightly.

14. When the vacuum tire of the forward-mounted type wheel hub and the reverse-mounted type wheel hub is disassembled, the expanding plate can separate the wheel hub from the tire bead in advance and guide the tire bead to a preset interface to be removed of the upper edge of the wheel hub, meanwhile, the top of the first bearing of the bird head is propped against the lower surface of the tire bead, and the lifted part of the tire bead is directly guided to be removed from the edge of the wheel hub from the upper surface of the first bearing in a rolling mode. Compared with the mode of forcibly pulling and scraping the tire bead by using an integrated die-casting bird head, or using a rotary crowbar, or using a rotary hub tire and the like, the mode of disassembling the tire can more effectively avoid accidentally damaging the tire bead.

15. The wheel hub tire of belted steel circle layering and the inner tube of a tyre can be dismantled and assembled, the work that could just be done at present is generally large-scale electronic hydraulic pressure tire dismouting machine (called electronic hydraulic pressure again and take off the child machine), but the utility model discloses also can easily accomplish, no matter be volume, weight, still the consumption moreover, all be much less than large-scale electronic hydraulic pressure tire dismouting machine, more convenient and energy-concerving and environment-protective.

16. The utility model discloses during severe cold district dismouting tire, the second bearing in bird's head motion the place ahead can break away the ice form thing above tire bead and the wheel hub in advance, and simultaneously, the expansion board is placed in the gap of the outer circular arc edge of wheel hub and tire bead inward flange, can break away the ice form thing in the gap between tire bead and the wheel hub, and expand the tire bead properly, separate tire bead and wheel hub and compulsory prevent the unexpected bottom of creeping into the second bearing of tire bead and the gap between the wheel hub upper edge, prevent that the bird's head from damaging the tire bead and avoided the tire bead directly to paste tight wheel hub dismouting effectively and cause tire bead fracture damage.

17. The utility model discloses a practicality is strong, easy operation, and simple easy learning, the sexual valence relative altitude, greatly reduced user's use threshold is low.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of a first locking assembly of the present invention;

fig. 3 is a schematic structural view of a second locking assembly of the present invention;

fig. 4 is a schematic structural view of the rotating assembly of the present invention;

fig. 5 is a schematic structural view of the bird head lifting assembly of the present invention;

fig. 6 is a schematic structural view of the revolving walking mechanism of the present invention.

In the figure: 1 first locking component, 11 first base plate, 12 first boss, 13 supporting legs, 14 first upright post, 15 central post locking screw, 16 first central post mounting hole, 17 first hub locking screw, 2 second locking component, 21 second base plate, 22 second boss, 23 second upright post, 24 second central post mounting hole, 25 second hub locking screw, 3 rotary component, 31 central post, 32 rotary big fluted disc, 33 rotary bearing seat, 34 rotary central shaft, 35 first crowbar baffle, 36 second crowbar baffle, 37 bird head mounting hole, 38 bird head locking screw, 39 rotary pinion, 310 small bearing seat, 311 third crowbar baffle, 312 speed reducer, 313 external power input joint, 4 bird head lifting component, 41 bird head bone plate, 42 first bearing, 43 second bearing, 44 bird head lifting post, 45 lifting post mounting seat, 46 horizontal arm, 47 bird head lifting post locking screw, 45 bird head lifting post locking screw, 16 first central post mounting hole, 17 first hub locking screw, 17 second hub locking screw, 2 second locking component, 23 first crowbar baffle, 34 second crowbar baffle, 34 bird head lifting post, 45 lifting post mounting seat, 45 lifting post, and second lifting post mounting seat, 48 expansion plates, 5 rubber rings, 6 baffle plate reinforcing bone plates, 7 hand-held handles and 8 rotary traveling mechanisms.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, a rotary tire changer comprises: the bird head locking device comprises a first locking assembly 1, a second locking assembly 2, a rotating assembly 3 and a bird head lifting assembly 4, wherein the second locking assembly 2 is arranged at the top of the first locking assembly 1, the rotating assembly 3 is arranged at the top of the second locking assembly 2, and the bird head lifting assembly 4 is arranged at the outer side of the rotating assembly 3;

the first locking assembly 1 comprises: the structure comprises a first base plate 11, a first boss 12, support legs 13, a first upright post 14, a central post locking screw 15, a first central post mounting hole 16 and a first hub locking screw 17, wherein the first boss 12 is arranged at the top of the first base plate 11, the support legs 13 are arranged at the bottom of the first base plate 11, the first upright post 14 is arranged at the top of the first boss 12 and penetrates through the bottom of the first boss 12, the first central post mounting hole 16 is arranged at the top of the first upright post 14, the central post locking screw 15 is arranged on the surface of the first upright post 14 and penetrates through the inner wall and the outer wall of the first upright post 14, and the first hub locking screw 17 is arranged at the top of the first base plate 11 and penetrates through the bottoms of the first base plate 11 and the first boss 12;

the second locking assembly 2 comprises: the wheel hub locking device comprises a second bottom plate 21, a second boss 22, a second upright post 23, a second center post mounting hole 24 and a second wheel hub locking screw 25, wherein the second boss 22 is arranged at the top of the second bottom plate 21, the second upright post 23 is arranged at the bottom of the second boss 22, the first upright post 14 is arranged inside the second upright post 23, the second wheel hub locking screw 25 is arranged at the top of the second boss 22 and penetrates through the bottoms of the second bottom plate 21 and the second boss 22, and the second center post mounting hole 24 is arranged at the top of the second upright post 23, penetrates through the second bottom plate 21 and the second boss 22 and extends to the bottom of the second upright post 23;

the swing assembly 3 includes: a central column 31, a rotary big fluted disc 32, a rotary bearing seat 33, a rotary central shaft 34, a first crowbar baffle 35, a second crowbar baffle 36, a bird head mounting hole 37, a bird head locking screw 38, a rotary pinion 39, a small bearing seat 310, a third crowbar baffle 311, a speed reducer 312 and an external power input joint 313, wherein the bottom of the central column 31 penetrates through the second central column mounting hole 24, the second upright column 23 and the first upright column 14 and extends to the inside of the first upright column 14, a rubber ring 5 is arranged on the outer surface of the central column 31, the rotary big fluted disc 32 is arranged on the top of the central column 31, the rotary bearing seat 33 is arranged on the top of the rotary big fluted disc 32, the rotary central shaft 34 is arranged inside the rotary bearing seat 33 and penetrates through two ends of the rotary bearing seat 33, the first crowbar baffle 35 is arranged on the outer side of the rotary bearing seat 33, a baffle plate reinforcing 6 is arranged on the back surface of the first crowbar baffle 35, second crowbar baffle 36 sets up the top at first crowbar baffle 35, third crowbar baffle 311 sets up the outside at slewing bearing seat 33, and oppose with first crowbar baffle 35, slewing pinion 39 is installed in the outside of gyration fluted disc 32, and with gyration fluted disc 32 intermeshing, little bearing seat 310 sets up the top at slewing pinion 39, bird's head mounting hole 37 sets up the outside at little bearing seat 310, bird's head locking screw 38 sets up the outside at third crowbar baffle 311, speed reducer 312 sets up the top at little bearing seat 310, external power input connects 313 sets up the top at speed reducer 312, install hand-lift handle 7 on the shell of speed reducer 312.

Bird head lifting unit 4 includes: bird head bone plate 41, first bearing 42, second bearing 43, bird head lift post 44, lift post mount 45, horizontal arm 46, bird head lift post locking screw 47, expansion plate 48, first bearing 42, second bearing 43 and expansion plate 48 all install the surface at bird head bone plate 41, bird head lift post 44 nestedly installs the outside at bird head bone plate 41, lift post mount 45 sets up the surface at bird head lift post 44, horizontal arm 46 installs the outside at lift post mount 45, bird head lift post locking screw 47 sets up the surface at lift post mount 45, and run through the inside and outside wall of lift post mount 45, horizontal arm 46 installs the inside at bird head mounting hole 37.

In a specific implementation, the number of the legs 13 is four, and the four legs 13 are respectively arranged at four sides of the bottom of the first bottom plate 11.

In specific implementation, the rubber ring 5 is provided with a hollow conical shape.

In the specific implementation, the annular groove of the hub is mounted and locked on the first boss 12 to mount and dismount the tire by using the first hub locking screw 17 on the normally mounted hub at the side far away from the hub screw hole.

In the specific implementation, the annular groove of the hub uses the second hub locking screw 25 on the reverse hub close to the screw hole of the hub, and the second hub locking screw is mounted and locked on the second boss 22 to mount and dismount the tire.

In one embodiment, the bird head mounting hole 37 is formed on the same outer side of the small bearing housing 310 and the swivel bearing housing 33, and the horizontal arm 46 is not blocked by the swivel bearing housing 33 when it extends and contracts inside the bird head mounting hole 37.

In specific implementation, the external power input joint 313 provides rotary power for the slewing pinion 39 through a bearing at the top of the speed reducer 312, the speed reducer 312 and a small bearing seat.

In the specific implementation, the rotary traveling mechanism 8 is composed of a rotary bearing seat 33, a first crowbar baffle 35, a second crowbar baffle 36, a third crowbar baffle 311, a bird head mounting hole 37, a bird head locking screw 38, a small bearing seat 310, a speed reducer 312, an external power input connector 313 and the handle 7.

In specific implementation, the rotation pinion 39 is meshed with the rotation fluted disc 32, and when the rotation pinion 39 rotates, the rotation traveling mechanism 8 and the bird head lifting assembly 4 are driven to travel around the periphery of the rotation fluted disc 32 by taking the rotation central shaft 34 as the center, so as to form a complete annular rotation machine body.

In the time of specific implementation, the utility model discloses when dismouting tire, only gyration running gear 8 and bird head lifting unit 4 encircle the peripheral walking of gyration fluted disc 32, and first locking Assembly 1, second locking Assembly 2, center post 31, gyration center pin 34, gyration fluted disc 32 and wheel hub tire are for gyration running gear 8 and bird head lifting unit 4 motionless.

In practice, the first bearing 42 and the second bearing 43 are each secured to the outer surface of the bone plate 41 with screws, which can be replaced quickly when the bearings or screws are damaged.

In practice, the first bearing 42 and the expansion plate 48 travel proximate the outer circular arc edge of the hub while the second bearing 43 travels along the outer circular arc edge of the end face of the hub during operation of the machine.

In practice, the outer cylindrical surface on which the second bearing 43 can roll can be replaced by an outer cylindrical surface on which a pulley can roll or a raised circular arc surface baffle which is integrally formed with the bird head bone plate (41) and fixed.

In the specific implementation, the second bearing 43 is arranged in front of the first bearing 42 in the working movement direction.

In particular embodiments, expansion plate 48 is disposed outside of bird head bone plate 41 between first bearing 42 and second bearing 43.

In particular, the outer surface of the expansion plate 48 contacting the tire sub-opening area is provided as a convex arc surface, and all corners and joints are smoothly polished.

In the time of concrete implementation, the utility model discloses when dismouting tire, the outer circular arc edge walking of wheel hub is pressed close to the back of bird's head bone plate 41 area first bearing 42 one side and the back of expansion plate 48, and simultaneously, the outward flange walking with expansion plate 48 same side wheel hub terminal surface is pressed close to the bottom surface of second bearing 43.

In the time of concrete implementation, the utility model discloses a unit adopts a plurality of big subassemblies 1, 2, 3, 4, removes or carries through separately carrying mode alone.

In specific implementation, the speed reducer 312 is installed at one side in front of the working movement direction of the rotary traveling mechanism 8, so that the speed reducer 312 applies work to the rotary assembly 3 and the bird head lifting assembly 4 in a pulling manner.

In the specific implementation, three crowbar baffles 35, 36 and 311 on the upper layer of the rotary travelling mechanism 8 can directly clamp crowbars without using the bird head lifting component 4, quickly detach waste tires, and also can nondestructively detach tires by using the bird head lifting component 4.

In practical implementation, the bird's head mounting hole 37 of the slewing gear 8 is provided outside the slewing bearing seat 33, and the horizontal arm 46 is not blocked by the slewing bearing seat 33 when it extends or contracts inside the bird's head mounting hole 37.

In the specific implementation, the bird head lifting component 4 adopts the design of extension, lifting and forced locking and fixing, and can be flexibly suitable for dismounting various different types of hub tires, including various vacuum tires and hub tires with a steel ring pressing strip inner tube.

When the novel wheel hub tire locking device is specifically implemented, the first locking assembly 1 and the second locking assembly 2 adopt nested quick butt joint and disassembly and assembly modes, and the functions of assembling and disassembling the front and back assembling type wheel hub tires can be quickly converted.

When the wheel hub tire mounting and dismounting device is specifically implemented, the disc surfaces of the first locking assembly 1 and the second locking assembly 2 are designed in a multi-layer boss 12 and 22 structure, the diameter of each layer of boss can be correspondingly mounted in the central holes of various different types of wheel hubs, and accurate positioning reference is provided for the wheel hub tire mounting and dismounting.

In the time of specific implementation, the utility model discloses when installing the vacuum tire of just adorning type and anti-dress type wheel hub, the outer face of cylinder of second bearing 43 bulldozes the tire bead of preparing to pack into in the wheel hub recess to wheel hub's edge outside in advance, simultaneously, the protruding arc surface of expansion plate 48 suitably parts the tire bead of just impressing in the wheel hub recess with wheel hub, and in the gap between the unexpected bottom that creeps into second bearing 43 of compulsory tire bead and the wheel hub upper edge, and simultaneously, the bottom of first bearing 42 is pressed on the tire bead, impress in the recess of wheel hub the tire bead with the rolling mode.

In the time of concrete implementation, the utility model discloses when dismantling the vacuum tire of just adorning type and anti-dress type wheel hub, the protruding arc surface of expansion plate 48 can part wheel hub and tire bead in advance to the tire bead is guided the predetermined interface of waiting to shift out of wheel hub upper edge, and simultaneously, the top of first bearing 42 pushes up below the tire bead, and the wheel hub edge is shifted out in the mode of rolling to the direct higher authority guide of following first bearing 42 of the part tire bead of holding up.

When in use, the utility model discloses a unit compact structure, exquisiteness to drive bird's head lifting unit 4 encircles the mode dismouting tire of wheel hub outward flange, and the energy consumption of the tire dismouting machine (also called the tire changer) than current common electrodynamic type, pneumatic type, electric hybrid, electronic fluid pressure type is little, and is low to the spoilage of tire rim, dismouting tire high quality.

The utility model discloses a single machine adopts a plurality of big parts, removes or carries through separately carrying mode, and is more convenient than current various different types, can only fixed mounting or use the tire dismouting machine of wheel push-and-pull walking mode, carries and carries all.

The single machine of the utility model is a multipurpose device, which can disassemble and assemble the forward-mounted hub tire (the hub with the annular groove at the side far away from the hub screw hole of the hub, such as the hubs of large-scale trucks, buses and heavy engineering vehicles) and the reverse-mounted hub tire (the hub with the annular groove at the side near to the hub screw hole of the hub, such as the hubs of small-scale buses, medium-scale buses, small-scale trucks, medium-scale trucks and agricultural vehicles) and the hub tire with the inner tube (the hub with the hub screw hole side provided with the steel ring pressing strip, such as the hubs of medium-scale trucks, large-scale trucks and heavy engineering vehicles), has simple operation, reliable and stable machine work, simultaneously, reduces the difficulty of disassembling and assembling the high-strength explosion-proof tire, the ultra-wide tread tire and the thickened heavy-load tire, saves the manufacturing cost, reduces the material and energy loss, the energy-saving and environment-friendly integrated machine has the advantages that the energy is saved, the environment is protected, the working efficiency is improved, convenience is brought to a user, and meanwhile the service quality of the industry is improved.

The speed reducer 312 of the rotary traveling mechanism 8 is installed on one side in front of the working movement direction of the rotary traveling mechanism 8, so that the speed reducer 312 applies work to the bird head lifting assembly 4 in a pulling force mode, the load moment is shortened, the working efficiency is improved, and the effects of labor saving, power saving, energy saving and environmental protection are achieved. The speed reducer 312 of the rotary traveling mechanism 8 is exquisite, compact and durable in structure, and can effectively convert an electric tool or a pneumatic tool with small volume, light weight, small power and single function into large torque force output, so as to provide strong traveling power for the rotary traveling mechanism 8. Three crowbar baffles on 8 upper strata of slewing mechanism can not use bird's head lifting unit 4, and direct centre gripping crowbar is along with slewing mechanism 8 and encircles the outward flange walking of wheel hub, dismantles old and useless tire fast. The handle 7 is arranged on the shell of the speed reducer 312 and is on the same line with the gravity centers of the rotary component 3 and the lifting component 4, so that the weights of the rotary component 3 and the lifting component 4 are automatically balanced during operation and carrying, and the comfort of operation and carrying is enhanced. The bird head mounting hole 37 of the rotary traveling mechanism 8 is formed in the outer side of the rotary bearing seat 33, when the horizontal arm 46 extends and retracts in the bird head mounting hole 37, the horizontal arm is not blocked by the rotary bearing seat 33, the horizontal arm 46 can be made longer and larger in size, tires in various sizes can be dismounted by a single machine, and the use cost and the energy consumption are reduced.

The bird head lifting component 4 adopts a telescopic lifting and forced locking fixing design, can be flexibly suitable for disassembling and assembling various different types of hub tires, comprises various vacuum tires and hub tires with steel ring pressing strips (with inner tires), saves the use cost and improves the working efficiency. The second locking component 2 and the first locking component 1 adopt nested quick butt joint and disassembly and assembly modes, and the function of quickly converting and disassembling the forward and backward assembled hub tire is increased compared with other types of tire disassembling and assembling machines. The disc surfaces of the first locking assembly 1 and the second locking assembly 2 are designed in a multilayer boss structure, the diameter of each layer of boss can be correspondingly arranged in the center holes of various different types of hubs, accurate positioning reference is provided for disassembling and assembling the hub tires, and the working efficiency is improved. The size of the second central column mounting hole 24 is smaller than the outer diameter of the first upright column 14, but larger than the outer diameter of the central column 31, when the second upright column 23 is installed in the first upright column 14 in a nesting mode, the second central column mounting hole 24 prevents the first upright column 14 from penetrating through the bone plate of the second boss 22, and does not influence the installation of the central column 31 of the rotary component 3 in the first upright column 14, so that the purpose of automatically locking the height of the second locking component 2 is achieved, the effect of secondary adjustment is not needed, and the labor time is saved.

When a tyre of a normally installed hub (namely, the hub with the annular groove on the side far away from the screw hole of the hub) is disassembled and assembled, a conical rubber ring 5 and a second locking component 2 are not needed, the concave surface of the hub is directly upwards placed on a first boss 12 of a first locking component 1, the central hole of the hub is embedded into the first boss 12 with similar size, the hub is locked by a first hub locking screw 17, the head lifting column 44 is locked after the head lifting column 44 is lifted to the highest point, the central column 31 of the rotation component 3 is arranged in a first central column mounting hole 16 of the first locking component 1, the upper edge of the hub just jacks up the bottom of the head bone plate 41 of the bird, the effect of automatically adjusting the height of the rotation component 3 is achieved, the telescopic length of a horizontal arm is adjusted, the back surface of the bone plate on the side with the bearing 44 of the bone plate 41 and the back surface of the expansion plate 48 are close to the outer circular arc edge of the hub as much as possible, the hub tire of the normal installation type can be dismounted (except for noble metal hubs such as aluminum alloy and titanium alloy, other steel hubs do not need to use the central column locking screw 15 to lock the central column 31 and also do not need to use the horizontal arm 46 of the bird head locking screw 38 to lock the bird head, so that the bird head lifting assembly 4 can automatically match the working height and the telescopic radius, and the working efficiency is improved).

When the inverted hub tire is disassembled (namely, the hub with the annular groove of the hub on the side close to the screw hole of the hub) is disassembled, the hub is required to be placed on the second boss 22 of the second locking component 2 with the concave surface facing downwards, the central hole of the hub is embedded into the second boss 22 with similar size, the hub is locked by the second hub locking screw 25, the central column locking screw 15 of the first locking component 1 is taken out, the second upright column 23 of the second locking component 2 is arranged outside the first upright column 14 of the first locking component 1 in a nesting mode, the conical rubber ring 5 is arranged at the top of the central column 31 of the rotary travelling mechanism 8 and is tightly attached to the bottom of the large toothed disc 32, the large toothed disc 32 and the small gear 39 are prevented from scratching the hub when the rotary travelling mechanism 8 runs, the horizontal arm 46 of the bird head is arranged in the bird head mounting hole 37 of the rotary travelling mechanism 8 after the bird head lifting column 44 is lifted to the highest point, pass second center post mounting hole 24 on the second boss 22 to the center post 31 of gyration running gear 8, pack into in the first center post mounting hole 16 of first locking subassembly 1, adjust the height of bird head, adjust the plane position of pressing close to the wheel hub terminal surface to the bottom surface of bird head hone lamella 41, lock bird head lift post 44, can begin the wheel hub tire of dismouting anti-type (except noble metal wheel hub such as aluminium alloy and titanium alloy, other steel wheel hubs need not to use center post locking screw 15 to lock center post 31, also need not to use horizontal arm 46 that bird head locking screw 38 locked the bird head, let bird head automatic matching working radius, work efficiency is improved).

When the forward-mounted and reverse-mounted hub tires are installed, a part of the tires are placed at the bottom of the first bearing 42, the rotary component 3 is driven, the bird head lifting component 4 follows the rotary component 3 to travel around the outer edge of the hub, at the moment, the outer cylindrical surface of the second bearing 43 pushes the tire seam to be installed in the hub groove to the outer side of the edge of the hub in advance, meanwhile, the expanding plate 48 properly separates the tire seam being pressed into the hub groove from the hub, and forcibly prevents the tire seam from accidentally drilling into the gap between the bottom of the second bearing 43 and the upper edge of the hub, so as to prevent the bird head from damaging the tire seam, meanwhile, the bottom of the first bearing 42 of the bird head is pressed on the tire seam, the tire seam is pressed into the hub groove in a rolling manner, and the intersection of the tire seam and the hub edge is effectively avoided, and the tire is pressed down due to the self weight of the tire, The tire bead is broken accidentally due to the excessive bending angle of the tire bead and the over-tight pressing of the bearing.

When disassembling the wheel hub tyre of the normal installation type and the reverse installation type, pry up partial tyre bead with the crow bar, let the first bearing 42 of bird's head hold up partial tyre bead in the below of tyre bead, and let partial tyre bead press on the outer arc surface of expansion plate 48, drive gyration subassembly 3, let bird's head lifting unit 4 follow gyration subassembly 3 and walk around the outward flange of wheel hub, at this moment, expansion plate 48 can separate wheel hub and tyre bead in advance, and guide the tire bead to the predetermined interface of waiting to shift out of wheel hub upper edge, simultaneously, the top of the first bearing 42 of bird's head pushes up below the tyre bead, direct the above-mentioned guide that follows first bearing 42 of the partial tyre bead of holding up shifts out the wheel hub edge with the mode of rolling. Compared with the mode of forcibly pulling and scraping the tire bead by using an integrated die-casting bird head, or using a rotary crowbar, or using a rotary hub tire and the like, the mode of disassembling the tire can more effectively avoid accidentally damaging the tire bead.

When the hub tire with the ribbon-ring bead and the inner tube is disassembled and assembled, the hub is firstly placed on the second boss 22 of the second locking component 2 with the concave surface facing downwards, the central hole of the hub is embedded into the second boss 22 with similar size, the hub is locked by the second hub locking screw 25, the conical rubber ring 5 is arranged at the top of the central column 31 of the rotary travelling mechanism 8 and is tightly attached to the bottom of the large gear disc 32, the hub is prevented from being scratched by the large gear disc 32 and the small gear 39 when the rotary travelling mechanism 8 operates, the central column locking screw 15 of the first locking component 1 is taken out, the second upright column 23 of the second locking component 2 is arranged outside the first upright column 14 of the first locking component 1 in a nesting mode, the central column 31 of the rotary component 3 passes through the second central column mounting hole 24 on the second boss 22 and is arranged in the first central column mounting hole 16 of the first locking component 1, the horizontal arm 46 of the bird head lifting component 4 is arranged in the bird head mounting hole 37, the bottom of the first bearing 42 of adjustment bird head descends to the top of just pressing close to wheel hub steel ring layering inward flange, locks bird head lift post 44, with the instrument prizes the open-ended one end of steel ring layering above first bearing 42, lets the steel ring layering be held to the higher authority of first bearing 42, drive gyration subassembly 3, let bird head lift subassembly 4 follow gyration subassembly 3 and encircle the outward flange walking of wheel hub, can dismantle wheel hub's steel ring layering and take out the tire. When the wheel hub steel ring pressing strip is installed, the open end of the steel ring pressing strip is pressed into a pit groove of the wheel hub installation steel ring pressing strip by using the bottom of the first bearing 42, the bird head lifting column 44 is locked, the rotation component 3 is driven, the bird head lifting component 4 follows the rotation component 3 to walk around the outer edge of the wheel hub, and the wheel hub steel ring pressing strip can be installed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (26)

1. A rotary tire changer characterized in that: the bird head lifting device comprises a first locking assembly (1), a second locking assembly (2), a rotating assembly (3) and a bird head lifting assembly (4), wherein the second locking assembly (2) is arranged at the top of the first locking assembly (1), the rotating assembly (3) is arranged at the top of the second locking assembly (2), and the bird head lifting assembly (4) is arranged at the outer side of the rotating assembly (3);

the first locking assembly (1) comprises a first base plate (11), a first boss (12), a supporting leg (13), a first upright post (14), a central post locking screw (15), a first central post mounting hole (16) and a first hub locking screw (17), the first boss (12) is arranged at the top of the first base plate (11), the supporting legs (13) are arranged at the bottom of the first base plate (11), the first upright post (14) is arranged at the top of the first boss (12), and penetrates through the bottom of the first boss (12), the first central column mounting hole (16) is arranged at the top of the first upright column (14), the central column locking screw (15) is arranged on the surface of the first upright column (14), the first hub locking screw (17) is arranged at the top of the first base plate (11) and penetrates through the first base plate (11) and the bottom of the first boss (12);

the second locking assembly (2) comprises a second base plate (21), a second boss (22), a second upright post (23), a second central post mounting hole (24) and a second hub locking screw (25), the second boss (22) is arranged at the top of the second base plate (21), the second upright post (23) is arranged at the bottom of the second boss (22), the first upright post (14) is arranged inside the second upright post (23), the second hub locking screw (25) is arranged at the top of the second boss (22) and penetrates through the bottoms of the second base plate (21) and the second boss (22), and the second central post mounting hole (24) is arranged at the top of the second upright post (23) and penetrates through the second base plate (21) and the second boss (22) and extends to the bottom of the second upright post (23);

the rotary component (3) comprises a central column (31), a rotary big toothed disc (32), a rotary bearing seat (33), a rotary central shaft (34), a first crowbar baffle plate (35), a second crowbar baffle plate (36), a bird head mounting hole (37), a bird head locking screw (38), a rotary pinion (39), a small bearing seat (310), a third crowbar baffle plate (311), a speed reducer (312) and an external power input connector (313), wherein the bottom of the central column (31) penetrates through the second central column mounting hole (24), the second upright column (23) and the first upright column (14) and extends to the inside of the first upright column (14), a rubber ring (5) is arranged on the outer surface of the central column (31), the rotary big toothed disc (32) is installed at the top of the central column (31), the rotary bearing seat (33) is installed at the top of the rotary big toothed disc (32), and the rotary central shaft (34) is installed inside the rotary bearing seat (33), and runs through the two ends of the swivel bearing seat (33), the first crowbar baffle (35) is arranged at the outer side of the swivel bearing seat (33), the back of the first crowbar baffle (35) is provided with a baffle reinforcing bone plate (6), the second crowbar baffle (36) is arranged at the top of the first crowbar baffle (35), the third crowbar baffle (311) is arranged at the outer side of the swivel bearing seat (33) and opposite to the first crowbar baffle (35), the swivel pinion (39) is arranged at the outer side of the swivel big fluted disc (32) and is meshed with the swivel big fluted disc (32), the small bearing seat (310) is arranged at the top of the swivel pinion (39), the bird head mounting hole (37) is arranged at the outer side of the small bearing seat (310), the bird head locking screw (38) is arranged at the outer side of the third crowbar baffle (311), and the speed reducer (312) is arranged at the top of the small bearing seat (310), the external power input joint (313) is arranged at the top of the speed reducer (312), and a portable handle (7) is mounted on the shell of the speed reducer (312);

the bird head lifting component (4) comprises a bird head bone plate (41), a first bearing (42), a second bearing (43), a bird head lifting column (44), a lifting column mounting seat (45), a horizontal arm (46), a bird head lifting column locking screw (47) and an expansion plate (48), the first bearing (42), the second bearing (43) and the expansion plate (48) are all arranged on the surface of the bird head bone plate (41), the bird head lifting column (44) is nested and arranged at the outer side of the bird head bone plate (41), the lifting column mounting seat (45) is arranged on the outer surface of the bird head lifting column (44), the horizontal arm (46) is arranged on the outer side of the lifting column mounting seat (45), the bird head lifting column locking screw (47) is arranged on the outer surface of the lifting column mounting seat (45), and the horizontal arm (46) is arranged in the bird head mounting hole (37) by penetrating through the inner wall and the outer wall of the lifting column mounting seat (45).

2. The rotary tire changing machine of claim 1 wherein: the number of the supporting legs (13) is four, and the four supporting legs (13) are respectively arranged on four sides of the bottom of the first bottom plate (11).

3. The rotary tire changing machine of claim 1 wherein: the shape of the rubber ring (5) is a hollow cone.

4. The rotary tire changing machine of claim 1 wherein: the annular groove of the wheel hub uses a first wheel hub locking screw (17) at the front-mounted wheel hub far away from one side of a wheel hub screw hole, and the wheel hub is mounted and locked on a first boss (12) to disassemble and assemble the tire.

5. The rotary tire changing machine of claim 1 wherein: the annular groove of the hub uses a second hub locking screw (25) at the reverse hub close to one side of the hub screw hole, and the tire is mounted and locked on a second boss (22) for dismounting.

6. The rotary tire changing machine of claim 1 wherein: the bird head mounting hole (37) is formed on the same outer side of the small bearing seat (310) and the rotary bearing seat (33), and the horizontal arm (46) is not blocked by the rotary bearing seat (33) when extending and retracting inside the bird head mounting hole (37).

7. The rotary tire changing machine of claim 1 wherein: the external power input joint (313) provides rotary power for the rotary pinion (39) through a bearing at the top of the speed reducer (312), the speed reducer (312) and the small bearing seat.

8. The rotary tire changing machine of claim 1 wherein: the novel electric crowbar is characterized in that a rotary traveling mechanism (8) is formed by the rotary bearing seat (33), the first crowbar baffle (35), the second crowbar baffle (36), the third crowbar baffle (311), the bird head mounting hole (37), the bird head locking screw (38), the small bearing seat (310), the speed reducer (312), the external power input connector (313) and the handle (7) together.

9. The rotary tire changing machine of claim 1 wherein: the rotary small gear (39) is meshed with the rotary big fluted disc (32), and when the rotary small gear (39) rotates, the rotary small gear drives the rotary walking mechanism (8) and the bird head lifting assembly (4) to walk around the periphery of the rotary big fluted disc (32) by taking the rotary central shaft (34) as the center, so that a complete annular rotary machine body is formed.

10. The rotary tire changing machine of claim 1 wherein: the utility model discloses when the dismouting tire, only gyration running gear (8) and bird head lifting unit (4) encircle the peripheral walking of gyration fluted disc (32), and first locking Assembly (1), second locking Assembly (2), center post (31), gyration center pin (34), gyration fluted disc (32) and wheel hub tire for gyration running gear (8) and bird head lifting unit (4) motionless.

11. The rotary tire changing machine of claim 1 wherein: the first bearing (42) and the second bearing (43) are each secured to the outer surface of the bone plate (41) with screws, which can be replaced quickly when the bearings or screws are damaged.

12. The rotary tire changing machine of claim 1 wherein: the first bearing (42) and the expansion plate (48) run close to the outer arc edge of the hub when the machine works, and meanwhile, the second bearing (43) runs along the outer arc edge of the end face of the hub.

13. The rotary tire changing machine of claim 1 wherein: the outer cylindrical surface of the second bearing (43) which can roll can be replaced by an outer cylindrical surface of a pulley which can roll or a raised arc surface baffle which is integrally formed with the bird head bone plate (41) and fixed.

14. The rotary tire changing machine of claim 1 wherein: the second bearing (43) is arranged in front of the first bearing (42) in the working movement direction.

15. The rotary tire changing machine of claim 1 wherein: the expansion plate (48) is arranged outside the bird head bone plate (41) between the first bearing (42) and the second bearing (43).

16. The rotary tire changing machine of claim 1 wherein: the outer surface of the expansion plate (48) contacting the tire sub-opening area is provided with a convex arc surface, and all corner positions and connecting positions are smoothly polished.

17. The rotary tire changing machine of claim 1 wherein: the utility model discloses when the dismouting tire, wheel hub's outer circular arc edge walking is pressed close to at the back of bird head hone lamella (41) area first bearing (42) one side and the back of expansion board (48), simultaneously, the outward flange walking with expansion board (48) same side wheel hub terminal surface is pressed close to the bottom surface of second bearing (43).

18. The rotary tire changing machine of claim 1 wherein: the utility model discloses a single machine adopts a plurality of big subassemblies (1, 2, 3, 4), removes or carries through separately carrying mode alone.

19. The rotary tire changing machine of claim 1 wherein: the speed reducer (312) is installed on one side in front of the working movement direction of the rotary travelling mechanism (8), so that the speed reducer (312) applies work to the rotary component (3) and the bird head lifting component (4) in a pulling manner.

20. The rotary tire changing machine of claim 8 wherein: three crowbar baffles (35, 36, 311) on the upper layer of the rotary travelling mechanism (8) do not use the bird head lifting component (4), directly clamp the crowbar, quickly detach the waste tire, and use the bird head lifting component (4) to nondestructively detach the tire.

21. The rotary tire changing machine of claim 8 wherein: the bird head mounting hole (37) of the rotary travelling mechanism (8) is formed in the outer side of the rotary bearing seat (33), and the horizontal arm (46) is not blocked by the rotary bearing seat (33) when stretching in the bird head mounting hole (37).

22. The rotary tire changing machine of claim 1 wherein: the bird head lifting assembly (4) adopts a telescopic, lifting and forced locking fixed design, and is suitable for dismounting various different types of hub tires, including vacuum tires, hub tires with steel ring pressing strips and inner tubes.

23. The rotary tire changing machine of claim 1 wherein: the first locking assembly (1) and the second locking assembly (2) adopt nested quick butt joint and disassembly and assembly modes, and can quickly convert and disassemble the functions of the front and back assembling type hub tires.

24. The rotary tire changing machine of claim 1 wherein: the disc surfaces of the first locking assembly (1) and the second locking assembly (2) are designed in a multi-layer boss (12, 22) structure, the diameter of each layer of boss can be correspondingly arranged in the central holes of hubs of various different types, and accurate positioning reference is provided for dismounting and mounting the hub tire.

25. The rotary tire changing machine of claim 1 wherein: the utility model discloses when installing the vacuum tire of just adorning type and anti-dress type wheel hub, the outer face of cylinder of second bearing (43) pushes away the tire bead of preparing to pack into in the wheel hub recess in advance to wheel hub's edge outside, simultaneously, the protruding arc surface of expansion board (48) suitably parts tire bead and wheel hub in the wheel hub recess of being impressed to in the gap between the bottom that compulsory prevents the tire bead accident to creep into second bearing (43) and the wheel hub upper edge, simultaneously, the bottom of first bearing (42) is pressed on the tire bead to the rolling mode is impressed the tire bead in wheel hub's recess.

26. The rotary tire changing machine of claim 1 wherein: the utility model discloses when dismantling the vacuum tire of just adorning type and anti-dress type wheel hub, the protruding arc surface of expansion board (48) can part wheel hub and tire bead in advance to guide the tire bead to the predetermined interface of waiting to shift out of wheel hub top edge, simultaneously, the top of first bearing (42) pushes up below the tire bead to the wheel hub edge is shifted out in the mode of rolling to the direct higher authority guide of following first bearing (42) of the partial tire bead of holding up.

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