CN201511943U - Engineering machine and support leg locking device thereof - Google Patents
Engineering machine and support leg locking device thereof Download PDFInfo
- Publication number
- CN201511943U CN201511943U CN2009201773660U CN200920177366U CN201511943U CN 201511943 U CN201511943 U CN 201511943U CN 2009201773660 U CN2009201773660 U CN 2009201773660U CN 200920177366 U CN200920177366 U CN 200920177366U CN 201511943 U CN201511943 U CN 201511943U
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- Prior art keywords
- supporting leg
- blocking device
- lock
- lock tube
- equipment
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- Expired - Fee Related
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Abstract
The utility model discloses a support leg locking device used for an engineering machine, which comprises a lock cylinder (3) with a handle bar (4) and a lock sleeve (2) for accommodating the lock cylinder (3), wherein the lock sleeve (2) comprises a locking slot (21) and a unlocking slot (22), which both are used for accommodating the handle bar (4), and a sliding chute (23) communicated with the locking slot (21) and the unlocking slot (22); the sliding chute (23) extends in substantially axial direction; and the handle bar (4) optionally slides along the sliding chute (23). The support leg locking device is easy to operate and is not liable to lose. The utility model also discloses an engineering machine comprising the support leg locking device.
Description
Technical field
The utility model relates to engineering machinery field, particularly relates to a kind of supporting leg blocking device that is used for construction machinery and equipment.In addition, the utility model also relates to a kind of construction machinery and equipment that comprises above-mentioned supporting leg blocking device.
Background technology
Movable crane is the conventional machinery in the modern industry, and its supporting leg generally is designed to the structure of telescoping.The supporting leg of telescoping generally comprises fixed supporting leg and movable supporting legs, and wherein, fixed supporting leg is installed on the chassis of jenny; Movable supporting legs is connected with fixed supporting leg, can all or part of indentation fixed supporting leg in.
According to the flexible length of movable supporting legs, the movable crane mode of operation can be divided into three kinds: stretch state entirely, partly stretch state and full reduced state.When travels down, the movable supporting legs of telescopic outrigger device needs withdrawal to greatest extent, generally is in full reduced state, to improve safe crossing ability; When hoisting crane hoisted operation, it is protruding that movable supporting legs needs, and generally is in and partly stretches state or stretch state entirely, with the hoist stability of operation of enhancing.
Movable crane is under every kind of mode of operation, and its supporting leg all must be worked under lock-out state, and the supporting leg state of movable crane often changes with the operating mode different needs, and therefore, its supporting leg needs a kind of convenient, fast, safe blocking device.
Please refer to Fig. 1, Fig. 1 is the decomposition texture scheme drawing of a kind of representative type supporting leg blocking device in the prior art.
As seen from Figure 2, in the existing structure, realize by locating dowel pin 11 the supporting leg location, after movable supporting legs arrives assigned address, the locating dowel pin among Fig. 1 11 is inserted in the pin-and-hole 12, and rotational positioning pin 11 just can lock supporting leg.This locking device structure is simple, and cost is lower, but its installation form has a lot of inconveniences in practical operation.
Please refer to Fig. 2 and Fig. 3, Fig. 2 is the work scheme drawing of a kind of typical movable crane and supporting leg locating dowel pin thereof in the prior art; Fig. 3 is the partial enlarged drawing of A part among Fig. 2.
When movable supporting legs 13 arrives the desired location, just need lock supporting leg.Because spatial relation, the dowel hole 12 of fixed supporting leg 14 is far away apart from the car outside, in the locking process, when the hand of operating personal enters pin-and-hole 12 places, can not observe the position of pin-and-hole 12, can only insert locating dowel pin 11 again by groping to seek pin-and-hole 12, operate very inconveniently, influenced operating time of operator to a great extent.
In addition, existing locating dowel pin 11 is independent workpiece, can deposit separately after taking out from pin-and-hole 12, loses easily in practice of construction, brings unnecessary loss to construction.
Therefore, how improving the operability of supporting leg locking, reduce the possibility that the supporting leg Lock Part is lost, is the present technical issues that need to address of those skilled in the art.
The utility model content
The purpose of this utility model provides a kind of supporting leg blocking device that is used for construction machinery and equipment, and it is simple to operate, and is difficult for losing.Another purpose of the present utility model provides a kind of construction machinery and equipment that comprises above-mentioned supporting leg blocking device.
For solving the problems of the technologies described above, the utility model provides a kind of supporting leg blocking device that is used for construction machinery and equipment, comprise lock core with handle, also comprise the lock tube that holds described lock core, this lock tube has the lock slots reconciliation locked groove that all is used to hold described handle, and be communicated with described lock slots and the described sliding tray of separating locked groove, and described sliding tray is generally along extending axially, and described handle selectively slides along described sliding tray.
Preferably, described lock slots and the described locked groove of separating are all along the circumferential extension of described lock tube.
Preferably, described lock tube is provided with closure plate away from the end of supporting leg lock hole.
Preferably, described closure plate is connected removably with described lock tube.
Preferably, described lock core and described handle have integral structure.
Preferably, also comprise the base of captiveing joint with described lock tube, this base is connected removably with the supporting leg of described construction machinery and equipment.
Preferably, described lock tube and described base have integral structure.
Preferably, also comprise the base of captiveing joint with the supporting leg of described construction machinery and equipment, described lock tube is connected removably with described base.
The utility model also provides a kind of construction machinery and equipment, comprises as above-mentioned each described supporting leg blocking device.
Preferably, be specially movable crane.
Supporting leg blocking device provided by the utility model comprises lock tube and lock core, wherein lock tube is installed on the supporting leg lock hole place of construction machinery and equipment, lock core is provided with the handle that is used to operate, lock tube is provided with the lock slots that holds handle and conciliates locked groove, also be provided with and be communicated with the sliding tray that lock slots is conciliate locked groove, this sliding tray is generally along extending axially, and handle can slide along sliding tray.When the handle on the lock core was arranged in lock slots, lock core was positioned at the supporting leg lock hole just; When handle is arranged in when separating locked groove, lock core leaves the supporting leg lock hole, removes the locking relation between supporting leg.Because the relative position of the supporting leg of lock tube and construction machinery and equipment is fixed, the relative position of lock core and lock tube is also fixing, when needs lock supporting leg, only need place lock slots to get final product on handle.This locking process has been saved the process of groping of operating personal, and is simple to operate, time saving and energy saving.When needs carry out release to supporting leg, as long as rotary handle, and handle moved to along sliding tray separate locked groove and get final product, this process is also operated easily, and lock core after the release still in lock tube, difficult drop-off also is difficult for losing, and has reduced the possibility that Lock Part is lost.
A kind of preferred embodiment in, described lock tube is provided with closure plate away from the end of described supporting leg lock hole.By the plugging action of closure plate, can prevent that lock core from excessively skidding off lock tube owing to operating in operating process, make the reliability of supporting leg blocking device operation higher, further improve the operability of supporting leg blocking device.In addition, closure plate has certain sealing process to lock tube, can reduce the pollution of impurity such as dust to lock core to a certain extent, improves the cleanliness level of supporting leg blocking device, improves the service life of supporting leg locking.
In another preferred embodiment, described supporting leg blocking device also comprises the base of captiveing joint with lock tube, this base is connected removably with supporting leg, and promptly the supporting leg blocking device can be connected removably with the supporting leg of construction machinery and equipment, to the not influence of structure of existing supporting leg.In addition, when the large pieces such as fixed supporting leg vehicle frame of construction machinery and equipment need be transported, can improve transition efficient; And when the supporting leg blocking device need be changed, also can integral replacing, thus the maintenance cost of supporting leg blocking device reduced, improve the maintainability of supporting leg blocking device.
Description of drawings
Fig. 1 is the decomposition texture scheme drawing of a kind of representative type supporting leg blocking device in the prior art;
Fig. 2 is the work scheme drawing of a kind of typical movable crane and supporting leg locating dowel pin thereof in the prior art;
Fig. 3 is the partial enlarged drawing of A part among Fig. 2;
Fig. 4 is installed on work scheme drawing on the movable crane fixed supporting leg for the utility model provides the supporting leg blocking device;
Fig. 5 is the partial enlarged drawing of B part among Fig. 4;
Fig. 6 provides the mounting plane scheme drawing of supporting leg blocking device for the utility model;
Fig. 7 provides the 3-D view of a kind of specific embodiment of supporting leg blocking device for the utility model;
Fig. 8 provides the decomposition view of a kind of specific embodiment of supporting leg blocking device for the utility model.
The specific embodiment
Core of the present utility model provides a kind of supporting leg blocking device that is used for construction machinery and equipment, and this supporting leg blocking device is simple to operate, is difficult for losing.Another core of the present utility model provides a kind of construction machinery and equipment that comprises above-mentioned supporting leg blocking device.
Basic design of the present utility model is: lock tube is installed at the supporting leg lock hole place of construction machinery and equipment, is had the lock slots that holds operating handle to conciliate locked groove on the lock tube, make blocking device when the locking and unlocking all in lock tube, be difficult for losing.
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. 4 and Fig. 5, Fig. 4 is installed on work scheme drawing on the movable crane fixed supporting leg for the utility model provides the supporting leg blocking device; Fig. 5 is the partial enlarged drawing of B part among Fig. 4.
Supporting leg blocking device provided by the utility model comprises lock tube 2 and lock core 3, wherein lock tube 2 is installed on the supporting leg lock hole place of construction machinery and equipment, lock core 3 is provided with the handle 4 that is used to operate, lock tube 2 is provided with the lock slots 21 that holds handle 4 and conciliates locked groove 22, also be provided with and be communicated with the sliding tray 23 that lock slots 21 is conciliate locked groove 22, sliding tray 23 is generally along extending axially, and handle 4 can slide in sliding tray 23.When the handle on the lock core 34 was arranged in lock slots 21, lock core 3 was positioned at the supporting leg lock hole just; When handle 4 is arranged in when separating locked groove 22, lock core 3 leaves the supporting leg lock hole, removes the locking relation between supporting leg.
Because lock tube 2 is fixed with the relative position of the supporting leg of construction machinery and equipment, lock core 3 is also fixing with the relative position of lock tube 2.When needs lock supporting leg, only need place lock slots 21 to get final product on handle 4.This locking process has been saved the process of groping of operating personal, and is simple to operate, time saving and energy saving.When needs carry out release to supporting leg, as long as rotary handle 4, and handle 4 moved to along sliding tray 23 separate locked groove 22 and get final product, this process is operation easily also, and lock core 3 after the release still in lock tube 2, difficult drop-off, also be difficult for losing, reduced the possibility that lock core 3 is lost.
Need to prove, as herein described axially, mean the direction of the line of centres of the center of lock core 3 and supporting leg lock hole.Sliding tray 23 extends vertically, comprises but never be limited to 23 of sliding trays extending vertically, and sliding tray 23 also can be simultaneously along circumferentially extending in the axially extended while.Can slide in sliding tray 23 with handle 4 is basic purpose.
In a kind of concrete embodiment, above-mentioned lock slots 21 is conciliate locked grooves 22 all along the circumferential extension of lock tube 2.Such structure difficulty of processing is less, helps reducing the productive costs of lock tube 2, also helps the marketing of supporting leg blocking device.
By general knowledge as can be known, lock slots 21 is conciliate locked groove 22 can be not only along circumferentially extending, can also be both along circumferentially extending, extend vertically again, promptly on lock tube 2, offer skewed slot, can block handle 4 as long as lock slots 21 is conciliate locked groove 22, make handle 4 be fixed on lock slots 21 or separate in the locked groove 22, when handle 4 needs to change the position, can slide, just can satisfy requirement of the present utility model along sliding tray 23.
Safety when improving lock core 3 operation, lock tube 2 can be provided with closure plate 5 away from the end of supporting leg lock hole, can make the radial dimension of this closure plate 5 can be about the same with the radial dimension of lock tube 2 particularly.By the plugging action of closure plate 5, can prevent that lock core 3 from excessively skidding off lock tube 2 owing to operating in operating process, make the reliability of supporting leg blocking device operation higher, further improve the operability of supporting leg blocking device.
In addition, 5 pairs of lock tubes 2 of closure plate have certain sealing process, can reduce the pollution of impurity such as dust to lock core 3 to a certain extent, improve supporting leg blocking device in-to-in cleanliness level, the service life of improving the supporting leg blocking device.
Obviously, if the end of lock tube 2 is not provided with closure plate 5, does not influence the supporting leg blocking device and realize its basic function, the longer service life that closure plate 5 can make the supporting leg blocking device just is set, operability is better.
Particularly, above-mentioned closure plate 5 can be connected removably with lock tube 2.Because lock core 3 will be subjected to the strong stress of supporting leg in locking process, long-time use may cause lock core 3 distortion even damage, so, through using after a while, can take closure plate 5 apart, change lock core 3,, improve the maintainability of supporting leg blocking device to reduce the maintenance cost of supporting leg blocking device.
In order further to improve the operability of supporting leg blocking device provided by the utility model, its lock core 3 can have integral structure with handle 4, to reduce to install and change the time of lock core 3, improves the efficient of installing and changing lock core 3.Certainly, if, lock core 3 can be designed to be connected removably with handle 4, for example can be that handle 4 screws togather with lock core 3 in order to reduce maintenance cost, in replacing, can only change lock core 3 like this and need not change handle 4, but reduce replacing efficient.
Can do further to improve to above-mentioned supporting leg blocking device.
Please refer to Fig. 6, Fig. 7 and Fig. 8, Fig. 6 provides the mounting plane scheme drawing of supporting leg blocking device for the utility model; Fig. 7 provides the 3-D view of a kind of specific embodiment of supporting leg blocking device for the utility model; Fig. 8 provides the decomposition view of a kind of specific embodiment of supporting leg blocking device for the utility model.
In the concrete embodiment of another kind, supporting leg blocking device provided by the utility model can also comprise the base 6 of captiveing joint with lock tube 2, and this base 6 is connected removably with the supporting leg of construction machinery and equipment.Be of the structure not influence of supporting leg blocking device, do not need to change existing leg structure supporting leg blocking device provided by the utility model just can be installed existing supporting leg.In addition, when the large pieces such as fixed supporting leg vehicle frame of construction machinery and equipment need be transported, can pull down the supporting leg blocking device, to improve the transition efficient of construction machinery and equipment; And when the supporting leg blocking device need be changed, also can integral replacing, thus the maintainability of supporting leg blocking device improved.
Further, lock tube 2 and base 6 can be designed to integral structure, make when this supporting leg blocking device is installed and only base 6 need be installed on the supporting leg of construction machinery and equipment, such as can be on supporting leg the design and installation screw thread, with bolt base 6 is installed on the supporting leg, convenient and swift, can improve the installation effectiveness of supporting leg blocking device.
Above-mentioned base 6 also can be captiveed joint with the supporting leg of construction machinery and equipment, and lock tube 2 is connected removably with base 6; Even base 6 can have integral structure with the supporting leg of construction machinery and equipment, when producing supporting leg, base 6 that lock tube 2 can be installed of design is connected lock tube 2 with base 6 more removably on it, can pull down with the main body that guarantees the supporting leg blocking device, be convenient for changing.
In addition, the utility model can also not have base 6, and processes a mounting hole that cooperates with lock tube 2 on supporting leg, directly lock tube 2 is installed on the mounting hole, can satisfy requirement of the present utility model yet.
Except above-mentioned supporting leg blocking device, the utility model also provides a kind of construction machinery and equipment that comprises above-mentioned supporting leg blocking device, and the structure of other each several parts of this project machinery please refer to prior art, and this paper repeats no more.
Particularly, above-mentioned construction machinery and equipment can be a movable crane.
More than construction machinery and equipment provided by the utility model and supporting leg blocking 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. supporting leg blocking device that is used for construction machinery and equipment, comprise the have handle lock core (3) of (4), it is characterized in that, also comprise the lock tube (2) that holds described lock core (3), this lock tube (2) has the lock slots (21) that all is used to hold described handle (4) and conciliates locked groove (22), and be communicated with described lock slots (21) and the described sliding tray (23) of separating locked groove (22), and described sliding tray (23) is generally along extending axially, and described handle (4) selectively slides along described sliding tray (23).
2. supporting leg blocking device according to claim 1 is characterized in that, described lock slots (21) and the described locked groove (22) of separating are all along the circumferential extension of described lock tube (2).
3. supporting leg blocking device according to claim 2 is characterized in that, described lock tube (2) is provided with closure plate (5) away from the end of supporting leg lock hole.
4. supporting leg blocking device according to claim 3 is characterized in that, described closure plate (5) is connected removably with described lock tube (2).
5. supporting leg blocking device according to claim 4 is characterized in that, described lock core (3) has integral structure with described handle (4).
6. according to each described supporting leg blocking device of claim 1 to 5, it is characterized in that also comprise the base (6) of captiveing joint with described lock tube (2), this base (6) is connected removably with the supporting leg of described construction machinery and equipment.
7. supporting leg blocking device according to claim 6 is characterized in that, described lock tube (2) has integral structure with described base (6).
8. according to each described supporting leg blocking device of claim 1 to 5, it is characterized in that also comprise the base (6) of captiveing joint with the supporting leg of described construction machinery and equipment, described lock tube (2) is connected removably with described base (6).
9. a construction machinery and equipment is characterized in that, comprises as each described supporting leg blocking device of claim 1 to 8.
10. construction machinery and equipment according to claim 9 is characterized in that, is specially movable crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201773660U CN201511943U (en) | 2009-09-17 | 2009-09-17 | Engineering machine and support leg locking device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201773660U CN201511943U (en) | 2009-09-17 | 2009-09-17 | Engineering machine and support leg locking device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201511943U true CN201511943U (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201773660U Expired - Fee Related CN201511943U (en) | 2009-09-17 | 2009-09-17 | Engineering machine and support leg locking device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201511943U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490695A (en) * | 2011-12-15 | 2012-06-13 | 中联重科股份有限公司 | Slide bar locking mechanism, supporting leg supporting device and engineering machinery |
| 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 |
| CN104075423A (en) * | 2014-06-19 | 2014-10-01 | 珠海格力电器股份有限公司 | Handle upper cover, sliding handle mounting structure comprising same and handle assembly |
| CN104884379A (en) * | 2012-08-31 | 2015-09-02 | 普茨迈斯特工程有限公司 | Locking device |
| CN106039636A (en) * | 2016-05-17 | 2016-10-26 | 嘉兴职业技术学院 | Outdoor fitness equipment |
| CN107265281A (en) * | 2017-05-12 | 2017-10-20 | 国网冀北电力有限公司秦皇岛供电公司 | Monolithic insulator hanging apparatus |
-
2009
- 2009-09-17 CN CN2009201773660U patent/CN201511943U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490695A (en) * | 2011-12-15 | 2012-06-13 | 中联重科股份有限公司 | Slide bar locking mechanism, supporting leg supporting device and engineering machinery |
| CN104884379A (en) * | 2012-08-31 | 2015-09-02 | 普茨迈斯特工程有限公司 | Locking device |
| CN104884379B (en) * | 2012-08-31 | 2016-10-26 | 普茨迈斯特工程有限公司 | Locking device |
| 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 |
| CN104075423A (en) * | 2014-06-19 | 2014-10-01 | 珠海格力电器股份有限公司 | Handle upper cover, sliding handle mounting structure comprising same and handle assembly |
| CN104075423B (en) * | 2014-06-19 | 2017-10-13 | 珠海格力电器股份有限公司 | Handle upper cover, sliding handle mounting structure comprising same and handle assembly |
| CN106039636A (en) * | 2016-05-17 | 2016-10-26 | 嘉兴职业技术学院 | Outdoor fitness equipment |
| CN107265281A (en) * | 2017-05-12 | 2017-10-20 | 国网冀北电力有限公司秦皇岛供电公司 | Monolithic insulator hanging apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20100623 Termination date: 20170917 |