CN201842064U - Concrete device and leg locking device thereof - Google Patents
Concrete device and leg locking device thereof Download PDFInfo
- Publication number
- CN201842064U CN201842064U CN2010206012033U CN201020601203U CN201842064U CN 201842064 U CN201842064 U CN 201842064U CN 2010206012033 U CN2010206012033 U CN 2010206012033U CN 201020601203 U CN201020601203 U CN 201020601203U CN 201842064 U CN201842064 U CN 201842064U
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- Prior art keywords
- handle
- locking device
- lock core
- outrigger locking
- lock tube
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Abstract
The utility model provides a leg locking device, which comprises a lock sleeve. A lock core is inserted in the lock sleeve, and an elastic component is arranged between the lock core and the lock sleeve and moves together with the lock core relative to the axial direction of the lock sleeve for elastic deformation. The leg locking device also comprises a handle, the handle is hinged with one end of the lock core, and the periphery of the handle is provided with a matching surface propping against the lock sleeve; the distance between the profile of the matching surface and the hinge point of the handle gradually changes along the rotating direction of the handle, so as to drive the lock core to move relative to the axial direction of the lock sleeve; and a connecting line of the center of gravity and the hinge point of the handle forms an included angle with the vertical line on which the hinge point is located. The leg locking device has a simple structure and is easy to operate. In addition, the utility model also provides a concrete device with the leg locking device.
Description
Technical field
The utility model relates to the mechanical interlocking technical field, relates in particular to a kind of outrigger locking device.In addition, the utility model also relates to a kind of concrete pump truck with above-mentioned outrigger locking device.
Background technology
Continuous progress and development along with society, the building engineering industry development is rapid, many large-scale engineering construction projects start in succession, market is the surge situation to the demand of concrete equipment, and it obtains application more and more widely in engineering constructions such as industry, civil construction, national defense construction, foundation construction, traffic and the energy.Concrete equipment mainly refers to several series products such as concrete pump truck, Mixer Truck and mixing plant.
With the example that is applied as of concrete pump truck, the work characteristics of concrete equipment is described.When long and overhang is big when the jib of pump truck, will produce very big capsizing moment, therefore, concrete pump truck is provided with supporting leg, guarantees that concrete pump truck has enough safetys and stability at work, promptly guarantees the anti-safety factor of tumbling of pump truck complete machine.Simultaneously, in concrete pump truck driving process, satisfy transportation request, supporting leg need be designed to the structure that to shrink for making supporting leg.
Concrete pump truck stretches out stability with retracted mode for improving supporting leg in working order, and the safety of assurance work and travelling position need be provided with outrigger locking device on supporting leg.Normal its structure of outrigger locking device that adopts as shown in FIG. in the prior art, lock tube 2 is made of lock ear and pipe fitting welding, and handle 7 is made up of projection, curved handle and Buddhist nun's bobbles, and lock core 1 is inserted in the lock tube 2, the outside face of lock core 1 is provided with spring 3, is used to realize the motion of lock core 1 with respect to lock tube 2.On the lock ear of the projection of handle 7 and lock tube 2, be respectively arranged with pin-and-hole, bearing pin 5 is inserted in the above-mentioned pin-and-hole, realizes the hinged of handle 7 and lock tube 2, is equipped with packing ring 4 with bearing pin 5, one end of lock core 1 is provided with slide bar 6, and an end of the projection of handle 7 is resisted against on the slide bar 6.When needs are transformed into opening by locking state, rotation by the curved handle on the handle 7 drives the projection rotation, change with the contact surface of slide bar 6, and change has also taken place in 6 vertical distance from bearing pin 5 to slide bar, become long distance by short range, be withdrawn in the lock tube 2 thereby promote slide bar 6 drive lock cores 1, open outrigger locking device.
As seen, outrigger locking device complex structure of the prior art, assembly technology is loaded down with trivial details.Therefore, providing outrigger locking device a kind of simple in structure, easy to operate is those skilled in the art's technical matterss to be solved.
The utility model content
The purpose of this utility model provides a kind of outrigger locking device, this device simple in structure, easy to operate.In addition, another purpose of the present utility model provides a kind of concrete equipment with above-mentioned supporting leg latching device.
For achieving the above object, the utility model provides a kind of outrigger locking device, comprise lock tube, be fitted with lock core in the described lock tube, be provided with elastomeric element between described lock core and the described lock tube, described elastomeric element also comprises handle along with the longitudinal travel dilatation of described lock core with respect to described lock tube, one end of described handle and described lock core is hinged, the periphery of described handle have with described lock tube against fitting surface; And along the rotation direction of described handle, between the profile of described fitting surface and the hinge-point of described handle apart from gradual change, to drive described lock core with respect to described lock tube longitudinal travel; And has angle between line between the center of gravity of described handle and the described hinge-point and the described hinge-point place ordinate.
Preferably, an end of described lock core is provided with groove, and described handle is inserted in the described groove.
Preferably, also comprise the fitting surface that is arranged on described handle and the slide bar between the described lock tube, described slide bar is installed in the described groove and its external part is captiveed joint with described lock tube.
Preferably, an end of described elastomeric element and described slide block against, the other end is resisted against described lock core.
Preferably, described elastomeric element is a spring.
Preferably, described lock tube is provided with boss, is used for the end against described elastomeric element, and the other end of described elastomeric element is resisted against described lock core.
Preferably, an end of described lock core is provided with protruding seat, is used for against described elastomeric element.
Preferably, described handle and described lock core are hinged by expansion pin.
Preferably, described handle is set to the tabular of uniform thickness.
In addition, the utility model also provides a kind of concrete equipment, comprise the chassis, described chassis is provided with actuating system and mixing device, both sides, described chassis also are provided with supporting leg, described concrete equipment also has above-mentioned each described outrigger locking device, and described outrigger locking device is fixed in described chassis by bearing.
Outrigger locking device provided by the utility model, comprise lock core, lock core is inserted in the lock tube, between lock core and lock tube, be provided with elastomeric element, this elastomeric element can be along with the longitudinal travel generation dilatation of lock core with respect to lock tube, one end of lock core is hinged with handle, the periphery of handle have with lock tube against fitting surface; And along the rotation direction of handle, between the profile of fitting surface and the hinge-point of handle apart from gradual change, thereby realize that handle drives lock core with respect to the lock tube longitudinal travel; And has angle between the center of gravity of handle and the line between the hinge-point and the hinge-point place ordinate.Under the running condition, outrigger locking device is fixed on the bearing, and is fixed in the chassis by bearing, and supporting leg can stretch out with respect to the chassis or withdraws according to the operating mode needs.When outrigger locking device was in running order, the outrigger locking device lock core stretched out, and elastomeric element exists and predetermincd tension between lock tube and lock core, is in relative extended configuration; When supporting leg carries out fore and aft motion, outrigger locking device need be opened, promptly rotate around jointed shaft by the manual operation handle, this moment is along the rotation direction of handle, hinge-point changes from small to big with respect to the distance of the projected outline of fitting surface on the axial cross section of lock core of handle and lock tube, drive lock core and withdraw, make outrigger locking device be in opening with respect to lock tube.Pack up in the process at supporting leg, the supporting leg locking device changes the position with the withdrawal of supporting leg, the different surfaces that cooperates the block that lock core contacted, owing to have angle between the center of gravity of described handle and line between the described hinge-point and the described hinge-point place ordinate, there is moment of torsion in the center of gravity that also is handle with respect to the ordinate at hinge place, and then handle utilizes the self gravitation rotation to realize self-locking.Opposite with above-mentioned working process, can realize that outrigger locking device has opening to become locking state.
A kind of preferred embodiment in, the lock core of outrigger locking device provided by the utility model has groove, described handle is inserted in the described groove.Handle is inserted in the groove hinged, not only can alleviates the overall weight of outrigger locking device, and directly can drive the flexible of lock core with less power, make to operate to be more prone to lock core pivotally attached connection mode than handle with lock core.
Description of drawings
Fig. 1 is the structural representation of supporting leg latching device in the prior art;
Fig. 2 is the structural representation of a kind of specific embodiment locking state of supporting leg latching device provided by the utility model;
Fig. 3 is the cutaway view of A-A direction shown in Figure 2;
Fig. 4 is the structural representation of the opening of supporting leg latching device shown in Figure 2;
Fig. 5 is outrigger locking device shown in Figure 2 and the assembly relation scheme drawing between the supporting leg;
Fig. 6 is the movement position variation diagram that outrigger locking device shown in Figure 5 cooperates with slide block A;
Fig. 7 is the movement position variation diagram that outrigger locking device shown in Figure 5 cooperates with slide block B;
Fig. 8 is the structural representation of the lock core of outrigger locking device shown in Figure 2;
Fig. 9 is the structural representation of the handle of outrigger locking device shown in Figure 2;
Figure 10 is the structural representation of the lock tube of outrigger locking device shown in Figure 2;
Figure 11 is a kind of concrete equipment provided by the utility model.
The specific embodiment
Core of the present utility model provides a kind of outrigger locking device, and this outrigger locking device is simple in structure, and is easy to operate.Another core of the present utility model provides a kind of concrete equipment with above-mentioned supporting leg latching device.
In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 2, Fig. 3 and Fig. 4, Fig. 2 is the structural representation of a kind of specific embodiment locking state of supporting leg latching device provided by the utility model, Fig. 3 is the cutaway view of A-A direction shown in Figure 2, and Fig. 4 is the structural representation of the opening of supporting leg latching device shown in Figure 2.
As shown in the figure, outrigger locking device provided by the utility model comprises lock core 26, lock core 26 is inserted in the lock tube 25, is provided with elastomeric element 24 between lock core 26 and the lock tube 25, and elastomeric element 24 can be with the longitudinal travel dilatation of lock core 26 with respect to lock tube 25.Handle 21 is hinged with an end of lock core 26, the periphery of handle 21 have with lock tube 25 against fitting surface; And along the rotation direction of handle 21, between the hinge-point of the profile of fitting surface and handle 21 apart from gradual change, realize that handle 21 drives lock cores 26 with respect to lock tube 25 longitudinal travels; And has angle between the center of gravity of handle 21 and the line between the hinge-point and the hinge-point place ordinate.
Its outside face was resisted against lock tube 25 formation when the fitting surface that handle 21 peripheries are had was handle 21 rotations, in addition, the profile of described fitting surface is meant fitting surface formed projection line on the vertical projection face, the distance of the outline line of hinge-point and above-mentioned fitting surface is along with the Changing Pattern of the rotation of handle 21 is: when lock core stretches out when being in locking state shown in Figure 2, this is apart from minimum; When the lock core withdrawal was in opening shown in Figure 4, this was apart from maximum.Like this, when regaining under the effect of lock core 26 that is in opening in external force, owing to have angle between the center of gravity of handle 21 and the ordinate at line between the hinge-point and hinge-point place, handle 21 deadweights produce moment of torsion with respect to hinge-point, therefore, handle 21 turns to the state of handle shown in Fig. 2 under the effect of self gravitation, these state lower handle 21 fitting surfaces and lock tube 25 are minimum against the distance of locating between the hinge-point, the certain axial distance of existence between itself and the lock tube 25 is treated locking state thereby be in.That is to say,, can under the effect of elastomeric element 24, stretch out as long as the lock core 26 under this state loses the constraint of axial limiting, until handle 21 and lock tube 25 fully against, realize auto lock.
The installation site of outrigger locking device and working process thereof can be with reference to figure 5, Fig. 6 and Fig. 7, Fig. 5 is outrigger locking device shown in Figure 2 and the assembly relation scheme drawing between the supporting leg, Fig. 6 is the movement position variation diagram that outrigger locking device shown in Figure 5 cooperates with slide block A, and Fig. 7 is the movement position variation diagram that outrigger locking device shown in Figure 5 cooperates with slide block B.
The lock tube 25 of outrigger locking device of the present utility model adopts welding or other modes to be fixed on the bearing 7, thereby whole device is fixed in bearing 7, bearing 7 is fixed in equipment chassis, supporting leg 8 can slide with respect to bearing 7, and outrigger locking device cooperates realization spacing to supporting leg 8 with slide block on the supporting leg 8.
As shown in FIG., when outrigger locking device was in the state of locking when supporting leg stretches out, if the inartificial outrigger locking device of opening, supporting leg can't be withdrawn, and has guaranteed the safety under the equipment working state.In supporting leg 8 withdrawal processes, drive the first slide block A and the second slide block B synchronous shift, outrigger locking device matches with the first slide block A and second slide block B successively, self mechanism's respective change.
As shown in Figure 6, first side of the lock core of outrigger locking device and the first slide block A offsets and is positioned at locking state.When needing to regain supporting leg 8, at first artificial turning handle 21 is opened outrigger locking device, lock core 26 withdrawals, and be resisted against second side.Along with supporting leg 8 continues withdrawal, lock core 26 is resisted against the 3rd side of the first slide block A; When lock core 26 slides into the 4th side that is in the higher position, the lock core 26 that is in retracted mode is subjected to the 4th side to its axial thrust, lock core 26 is further compressed, as previously mentioned, under this state, can under the thrust of lock core 26, move laterally with its pivotally attached handle 21, handle 21 separates with respect to fixed lock tube 25, there is the gap between fitting surface on it and the lock tube 25, at this moment, owing to have angle between the center of gravity of handle 21 and the ordinate at line between the hinge-point and hinge-point place, be that handle 21 produces moment of torsion with respect to hinge-point, thereby under the effect of self gravitation, rotate around hinge-point, handle 21 falls, and outrigger locking device continues to move to the 5th side of the first slide block A, and lock core 26 stretches out, but since do not supply lock core 26 against facade, be not in lockup state though lock core 26 stretches out outrigger locking device.Illustrated among Fig. 6 lock core successively with the routing motion of first side to the five sides of the first slide block A.
As shown in Figure 7, supporting leg 8 continues withdrawal, and when outrigger locking device moved to the second slide block B place, through first side of second slide block B, this first side was the face with certain slope earlier, and lock core 26 is subjected to axial force, the withdrawal certain distance; Lock core 26 slips over second side, the 3rd side, the 4th side and the 5th side successively then, and the 5th side is a facade, and after slipping over the 5th side, lock core 26 stretches out fully, and the lateral surface of lock core 26 is resisted against the 5th side, the formation lockup state.Illustrated among Fig. 7 lock core successively with the routing motion of first side to the five sides of second slide block B.
Above-mentioned facade is meant at the vertical plane that offsets with lock core perpendicular to horizontal surface.
Need to prove that supporting leg 8 is same as described above by the principle of work that is withdrawn into expansion, the working process of outrigger locking device is opposite, discusses no longer in detail at this.
Please refer to Fig. 8, Fig. 8 is the structural representation of the lock core of outrigger locking device shown in Figure 2.
Employing handle 21 is inserted into the mode in the lock core 26, not only can alleviate the overall weight of outrigger locking device, and operation is more prone to.Certainly, also handle 21 directly can be hinged on the lock core 26 for easy to process.
When adopting when handle 21 is inserted into the mode of groove 262 of lock core 26 1 ends, the slide bar 23 of captiveing joint with lock tube 25 can also be set, slide bar 23 is installed in the groove 262 and its external part is captiveed joint with lock tube 25.Like this, slide bar 23 between the fitting surface and lock tube 25 of handle 21, the fitting surface of handle 21 and slide bar 23 against a, end of elastomeric element 24 can with slide block 23 against, the other end can be resisted against lock core 26.
Because slide bar 23 and lock tube 25 relative fixed, slide bar 23 can be considered as the part of lock tube 25, when handle 21 rotates, slide bar 23 provide with the fitting surface of handle 21 against driving surface, provide simultaneously elastomeric element 24 against end face.Can further simplify the structure of lock tube 25, and simplify component processing method.Slide bar 23 can be welding or other fixed forms with the mode of captiveing joint of lock tube 25.
Certainly, handle 21 can with lock tube 25 directly against, in this structure, radially-protruding boss (not shown) need be set on lock tube 25, handle 21 is resisted against a side of boss.One end of elastomeric element 24 is resisted against boss, and the other end is resisted against lock core 26.This kind set-up mode, it is compacter to have reduced employed block construction.
Protruding seat 263 can also be set on lock core 26, and elastomeric element 24 is resisted against on the protruding seat 263, for elastomeric element 24 provides attachment face.
Please refer to Fig. 9, Fig. 9 is the structural representation of the handle of outrigger locking device shown in Figure 2.
The specific constructive form of handle 21 can for, be provided for and lock core 26 pivotallys attached second hinge hole 211, for convenience, shaft-like handle 214 can also be set to the operation of handle 21.The motion class of handle 21 is similar to cam structure, when outrigger locking device is in locking state, the first surface of handle 21 213 and lock tube 25 against; When this device was in opening, after handle 21 rotated, first surface 213 turned to diverse location, and second surface 212 and lock tube 25 have constituted fitting surface on the handle 21 against, first surface 213 and second surface 212.And second hinge hole 211 arrives the distance of second surface 212 greater than the distance of second hinge hole 211 to first surface 213, and like this, handle 21 can drive lock core 26 withdrawals or stretch out.
Please refer to Figure 10, Figure 10 is the structural representation of the lock tube of outrigger locking device shown in Figure 2.
As shown in FIG., lock tube 25 of the present utility model is set to whole of tubulose.For cooperating handle 21 is inserted into connection mode in the lock core 26, first opening 251 and second opening 252 are set respectively on two walls of lock tube 25 corresponding ends, install and rotation space for handle 21 provides.
Because handle 21 is hinged with lock core 26, does not need the lock ear is set, as long as the body of plug-in mounting lock core 26 is set, the structure of lock tube 26 is more simplified.
Lock core 26 and lock tube 25 can all adopt the structure of column type, and the alerting ability of operation is provided.Certainly, also can adopt other version.
Further, handle 21 is hinged by expansion pin 22 with lock core 26.Employed bearing pin need be provided with parts such as packing ring, nut in the prior art, has simplified the structure of outrigger locking device.
The above-mentioned elastomeric element of mentioning 24 can be specially spring.
In addition, the utility model also provides a kind of concrete equipment.Please refer to Figure 11, Figure 11 is a kind of concrete equipment provided by the utility model.
More than concrete equipment provided by the utility model and outrigger locking device thereof are described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. outrigger locking device, comprise lock tube, be fitted with lock core in the described lock tube, be provided with elastomeric element between described lock core and the described lock tube, described elastomeric element is characterized in that along with the longitudinal travel dilatation of described lock core with respect to described lock tube, also comprises handle, one end of described handle and described lock core is hinged, the periphery of described handle have with described lock tube against fitting surface; And along the rotation direction of described handle, between the profile of described fitting surface and the hinge-point of described handle apart from gradual change, to drive described lock core with respect to described lock tube longitudinal travel; And has angle between line between the center of gravity of described handle and the described hinge-point and the described hinge-point place ordinate.
2. outrigger locking device according to claim 1 is characterized in that, an end of described lock core is provided with groove, and described handle is inserted in the described groove.
3. outrigger locking device according to claim 2 is characterized in that, also comprises the fitting surface that is arranged on described handle and the slide bar between the described lock tube, and described slide bar is installed in the described groove and its external part is captiveed joint with described lock tube.
4. outrigger locking device according to claim 3 is characterized in that, an end of described elastomeric element and described slide block against, the other end is resisted against described lock core.
5. outrigger locking device according to claim 1 is characterized in that described lock tube is provided with boss, is used for the end against described elastomeric element, and the other end of described elastomeric element is resisted against described lock core.
6. according to each described outrigger locking device of claim 1-5, it is characterized in that described elastomeric element is a spring.
7. according to each described outrigger locking device of claim 1-5, it is characterized in that an end of described lock core is provided with protruding seat, is used for against described elastomeric element.
8. according to each described outrigger locking device of claim 1-5, it is characterized in that described handle and described lock core are hinged by expansion pin.
9. according to each described outrigger locking device of claim 1-5, it is characterized in that described handle is set to the tabular of uniform thickness.
10. concrete equipment, comprise the chassis, described chassis is provided with actuating system and mixing device, both sides, described chassis also are provided with supporting leg, it is characterized in that, described concrete equipment also has each described outrigger locking device of above-mentioned 1-9, and described outrigger locking device is fixed in described chassis by bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206012033U CN201842064U (en) | 2010-11-10 | 2010-11-10 | Concrete device and leg locking device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206012033U CN201842064U (en) | 2010-11-10 | 2010-11-10 | Concrete device and leg locking device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201842064U true CN201842064U (en) | 2011-05-25 |
Family
ID=44036963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206012033U Expired - Fee Related CN201842064U (en) | 2010-11-10 | 2010-11-10 | Concrete device and leg locking device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201842064U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887133A (en) * | 2012-09-20 | 2013-01-23 | 三一重工股份有限公司 | Locking structure of support leg and project machine |
| CN105539386A (en) * | 2015-12-08 | 2016-05-04 | 湖南三一路面机械有限公司 | Split locking mechanism and engineering machinery |
-
2010
- 2010-11-10 CN CN2010206012033U patent/CN201842064U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887133A (en) * | 2012-09-20 | 2013-01-23 | 三一重工股份有限公司 | Locking structure of support leg and project machine |
| CN102887133B (en) * | 2012-09-20 | 2015-09-02 | 三一重工股份有限公司 | Supporting leg locking structure and construction machinery and equipment |
| CN105539386A (en) * | 2015-12-08 | 2016-05-04 | 湖南三一路面机械有限公司 | Split locking mechanism and engineering machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XUZHOU XUGONG SCHWING MACHINERY CO., LTD. Free format text: FORMER OWNER: BUILDING MACHINERY CO., LTD., XCMG CONSTRUCTION MACHINERY CO., LTD. Effective date: 20130605 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130605 Address after: 221004 No. 29, Peach Road, Xuzhou economic and Technological Development Zone, Jiangsu, Xuzhou Patentee after: XCMG Schwing Machinery Co., Ltd. Address before: 221004 No. 19 Peach Road, Xuzhou Economic Development Zone, Jiangsu, China Patentee before: Building Machinery Co., Ltd., XCMG Construction Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20171110 |