CN202283910U - Locking device and engineering machinery with same - Google Patents
Locking device and engineering machinery with same Download PDFInfo
- Publication number
- CN202283910U CN202283910U CN2011203437657U CN201120343765U CN202283910U CN 202283910 U CN202283910 U CN 202283910U CN 2011203437657 U CN2011203437657 U CN 2011203437657U CN 201120343765 U CN201120343765 U CN 201120343765U CN 202283910 U CN202283910 U CN 202283910U
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- groove
- locking device
- push rod
- lock
- lock shell
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Abstract
The utility model provides a locking device and engineering machinery with the same. The locking device comprises a lock case and a lock cylinder sleeved in the lock case, wherein the first end of the lock cylinder is provided with a spring bolt with a slope; a through hole corresponding to the spring bolt is formed in the first end of the lock case, and the lock cylinder can elastically stretch along an axial direction of the lock case; a first groove capable of extending along the axial direction is formed at the periphery of the lock cylinder; one end of the first groove, which is close to the spring bolt, is communicated with a second groove; the first groove is shallower than the second groove; an unlocking piece capable of elastically stretching along a radial direction of the lock case is arranged on the lock case; and the first end of the unlocking piece extends into the lock case, and is selectively matched with the first groove or the second groove. The engineering machinery applies the locking device. According to the locking device and the engineering machinery with the same, an automatic locking function can be realized; and the locking device and the engineering machinery have the advantages of simple structure, high reliability and convenience in operation.
Description
Technical field
The utility model relates to engineering machinery field, more specifically, relates to a kind of Locking Device and has the construction machinery and equipment of this Locking Device.
Background technology
Concrete pump truck is with the pumping mechanism of pump concrete, is used for the hydraulic pressure articulated boom of cloth and realizes rotation and the supporting construction that supports is integrated in car chassis, and collection goes, pumping, cloth are the high-effective concrete load transfer device of one.Pump truck supporting leg in the process of moving needs to regain, and arranges when the retracted state and stretches out in order to prevent supporting leg, and oscillating type supporting leg or telescopic leg need carry out locking with Locking Device.The outrigger locking device claimed structure is simple, and is easy to operate, and can guarantee supporting leg is locked on the position of withdrawal.
Existing outrigger locking device main mostly by bearing pin, key seat, have fixedly that the parts such as thin steel rope of snap close constitute, its complex structure and locking automatically.For example; At number of patent application is in the patent documentation of CN200920177366.0; Disclose a kind of outrigger locking device,, can not realize automatic locking though this outrigger locking device structure is simpler; And this outrigger locking device needs rotary locking cylinder could realize limit function, inconvenient operation in practical application when locking and release.At number of patent application is in the patent document of CN201020294297.4, and a kind of construction machinery and equipment supporting leg lock of locking automatically is provided, but the complex structure of this project machinery supporting leg lock, in practical application, exists the problem of inconvenient operation equally.
The utility model content
The utility model aims to provide a kind ofly has automatic latch functions, and simple in structure, easy to operate Locking Device and have the construction machinery and equipment of this Locking Device, to solve the problems referred to above that exist in the prior art.
An aspect according to utility model provides a kind of Locking Device, comprises locking shell and the lock core that is set in the lock shell, and first end of lock core is provided with dead bolt, and first end of lock shell offers the through hole of corresponding dead bolt, and lock core can stretch along self axial elasticity; Offer first groove that extends vertically on the periphery of lock core, first groove is communicated with second groove near an end of dead bolt, and the groove depth of first groove is less than the groove depth of second groove; Lock is equipped with on the shell can be along the flexible unlock piece of lock shell radial elastic, and first end of unlock piece stretches into the inside of lock shell, and first end of unlock piece selectively with first groove or second groove fit.
Further, second end of lock core is equipped with guide rod, and the outer end of guide rod is passed by second end of lock shell, in the outer end of guide rod first locating part is installed; Be provided with first elastic element between second end of second end of lock core and lock shell.
Further, first elastic element is set on the guide rod.
Further, first locating part is a locating dowel pin, and the outer end of guide rod is equipped with handle through locating dowel pin.
Further, offer mounting hole radially on the lock shell, the position of corresponding mounting hole is provided with sleeve on the periphery of lock shell, and the free end of sleeve is equipped with socket cover; Unlock piece comprises push rod, and push rod is installed in the endoporus of mounting hole and sleeve; First end of push rod selectively is engaged in first groove or second groove, and second end of push rod is passed by socket cover; The middle part of push rod is formed with position limiting convex ring, and second elastic element is installed between position limiting convex ring and the socket cover.
Further, mounting hole is a stepped hole, and it comprises the heavy caliber section that is positioned at radial outside and is positioned at small-bore section of radially inner side; The aperture of sleeve endoporus is identical with the aperture of heavy caliber section.
Further, socket cover and sleeve are spirally connected.
Further, second end of push rod is equipped with second locating part.
Further, second elastic element is set on the push rod.
Another aspect according to the utility model also provides a kind of construction machinery and equipment, and comprise car body and be installed in the supporting leg on the car body, and above-mentioned Locking Device.
Technical scheme according to the utility model; When needs are regained supporting leg and locking supporting leg; First end that dead bolt is in the state of stretching out and push rod is in first groove, and the inclined-plane of dead bolt slides to the lock shell-side after running into the lock block that is mated, and first end and the first groove slide relative of push rod can prevent that dead bolt from reversing simultaneously; The inclined-plane of dead bolt ejects toward the reversing sense of locking shell after crossing lock block automatically, has promptly realized the automatic locking to supporting leg.When needs are removed the locking of supporting leg when opening supporting leg; The operation dead bolt is retracted in the lock shell it; First end of push rod gets into second groove along first groove; And push rod snaps under resilient force in second groove, can make lock core remain on released state easily, to open the operation of supporting leg.When needs once more during the locking supporting leg, only need first end of push rod is pulled out from second groove, lock core stretches out under resilient force automatically, this moment push rod first end and first groove fit, can carry out once more automatic locking to supporting leg.According to the Locking Device of the utility model, have automatic latch functions, and simple in structure, easy to operate, and can guarantee supporting leg is locked on the position of withdrawal.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 has schematically shown the decomposition texture of the Locking Device of the utility model;
Fig. 2 has schematically shown the main TV structure of the Locking Device of the utility model;
Fig. 3 has schematically shown the plan structure of the Locking Device of the utility model, and this Locking Device is in lockup state;
Fig. 4 shows the local structure for amplifying of Fig. 3;
The Locking Device that Fig. 5 has schematically shown the utility model is in the structure of released state; And
Fig. 6 has schematically shown the local structure for amplifying of lock core in the Locking Device of the utility model.
The specific embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
In conjunction with referring to figs. 1 to Fig. 3, show structure according to the Locking Device of utility model, as shown in the figure, this Locking Device comprises lock shell 1, lock core 3 and push rod 5 etc.
By finding out among the figure, lock core 3 is sheathed in the lock shell 1, and first end of lock shell 1 offers through hole.First end of lock core 3 has dead bolt 31.Can be provided with the inclined-plane on this dead bolt 31, this inclined-plane for example is the wedge shape inclined-plane or is curve slope.Dead bolt 31 passes from the through hole of lock shell 1 first end, and lock core 3 can be flexible along lock shell 1 axial elasticity.Offer vertically first groove, 33, the first grooves 33 that extend on the periphery of lock core 3 and be communicated with second groove 35, and the groove depth H1 of first groove 33 is less than the groove depth H2 (referring to Fig. 6) of second groove 35 near an end of dead bolt 31.Being equipped with on the lock shell 1 can be along the flexible unlock piece 5 of lock shell 1 radial elastic.In this preferred embodiment, unlock piece 5 is an example with the push rod, and push rod 5 is installed in the radially mounting hole 13 on the lock shell, and first end of push rod 5 stretches into lock shell 1 inside, and first end of push rod 5 selectively cooperates with first groove 33 or second groove 35.
Being mounted to the pump truck car body with the Locking Device of the utility model below is the principle of work that example specifies this Locking Device, is used for the oscillating support leg that lock block that the dead bolt with Locking Device cooperates is mounted to pump truck.The principle of work of the Locking Device of the utility model is described below:
When the oscillating support leg (not shown) of pump truck was deactivated state, oscillating support leg was regained.When the oscillating support leg withdrawal is about to put in place; Lock block 8 on the oscillating support leg at first collides the inclined-plane of dead bolt 31; Oscillating support leg continues to regain and compression dead bolt 31 breaks away moving to one of lock shell 1; Slide relative takes place and can limit dead bolt 31 and reverse in first end of push rod 5 and first groove 33 simultaneously, makes dead bolt 31 be in normal working.When oscillating support leg put fully get back to the position after; Lock block 8 is crossed the inclined-plane of dead bolt 31; Dead bolt 31 stretches out under the effect of elastic-restoring force automatically and limited lock stop block 8 is arranged; Promptly realized automatic locking, thereby the outrigger locking device that the has overcome prior art problem of locking has automatically made things convenient for the operation of oscillating support leg locking to oscillating support leg.The dead bolt that promptly shows this Locking Device among Fig. 3 is in the scheme drawing of the state of locking oscillating support leg.
When needs oscillating support leg is arranged and to be carried out pumping when work; Need to remove the locking of Locking Device to oscillating support leg; Only need operation dead bolt 31 that it is retracted in the lock shell 1; First end of push rod 5 slips into second groove 35 by first groove 33 simultaneously; And first end of push rod 5 is stuck in first groove 33 and second groove, the 35 formed step places with different groove depths after under resilient force, stretching into second groove 35, thereby can make lock core 3 remain on released state easily, and oscillating support leg can be arranged and carry out work then.
When needs once more during the locking oscillating support leg; Only need first end of push rod 5 is pulled out from second groove 35; Lock core 3 drives its dead bolt 31 and under resilient force, stretches out automatically, makes first end of push rod 5 cooperate with first groove 33, can carry out once more locking automatically to oscillating support leg.
Understand easily, push rod 5 first ends snap in second groove 35 in automatic locking process in order to avoid, and cause the problem of locking oscillating support leg automatically thereby cause lock core 3 not eject automatically, and the axial length of first groove 33 need be arranged on suitable length.
Need to prove that the field of application according to the Locking Device of the utility model is not limited to above-mentioned pump truck and also is not limited to the locking to supporting leg, can also be applied to other need carry out on the product of locking.When being applied to the supporting leg locking of construction machinery and equipment, also be not limited to be applied to above-mentioned oscillating type supporting leg, can also be applied on the telescopic leg.In addition, this Locking Device can be mounted on the supporting leg of construction machinery and equipment, also can be mounted on the car body of construction machinery and equipment, and lock block that matches with Locking Device or locking hole then correspondingly are mounted on the car body or supporting leg of construction machinery and equipment.In addition, unlock piece 5 can also have numerous embodiments, is not limited to above-mentioned push rod, as long as can reach release and limit the effect that lock core 3 rotates, other specific embodiment of unlock piece 5 are not given an example at this one by one.
In addition; In the foregoing description, the shape of dead bolt 31 is an example with the structure that has the inclined-plane, certainly; Dead bolt 31 also can be cylindrical or bevelled shape; When dead bolt 31 when being cylindrical or conical, the baffle plate that cooperates with dead bolt can be the baffle plate of wedge shape, to cooperate dead bolt 31 and to impel dead bolt 31 to shrink.
With reference to figure 1, Fig. 3 and Fig. 5; Show and realize that lock core 3 is along the flexible preferred implementation of lock shell 1 axial elasticity; As shown in the figure; Second end of lock core 3 is equipped with guide rod 9, and the outer end of guide rod 9 is passed by second end of lock shell 1, is provided with first elastic element 7 between second end of second end of lock core 3 and lock shell 1.Preferably, this first elastic element 7 is for being arranged on the spring in the lock shell 1.
Can be set on the guide rod 9 when preferably, first elastic element 7 is for spring.Guide rod 9 also can be one-body molded with lock core 3.Like this, when needing dead bolt 31 to convert released state shown in Figure 5 into, only need to hold guide rod 9 and first end of push rod 5 is snapped in second groove 35 towards lock shell 1 outer side shifting by the lockup state that stretches out.Preferably, first locating part 91 is installed in the outer end of guide rod 9, this locating part 91 can be the latch shown in the figure, and the little head end of latch is spacing by spring cotter 93.First locating part 91 can prevent simply and effectively that on the one hand lock core 2 from ejecting from the through hole of lock shell 1 first end; After preventing the each release of Locking Device on the other hand; Dead bolt 31 elasticity cause first groove 33 to impact first end of push rod 5 away from an end of dead bolt 31 when stretching out; Make push rod 5 early failure, influence the problem in the life-span of Locking Device.In addition, for ease of pulling guide rod 9, on the outer end of guide rod 9, handle 4 is installed through latch 91.
Combine again with reference to figure 1, Fig. 3, Fig. 4 and Fig. 5, show and realize that push rod 5 is along the flexible preferred implementation of mounting hole 13 axial elasticitys.As shown in the figure, in the position of the corresponding mounting hole 13 of the periphery of locking shell 1 sleeve 2 is installed, this sleeve 2 and mounting hole 13 coaxial settings, sleeve 2 for example can be connected with lock shell 1 through the mode of welding.The free end of sleeve 2 is equipped with socket cover 21, preferably, and socket cover 21 and sleeve 2 being spirally connected for ease of dismounting.Push rod 5 is installed in the endoporus of mounting hole 13 and sleeve 2, and first end of push rod 5 selectively is engaged in first groove 33 or second groove 35, and second end passes socket cover 21.The middle part of push rod 5 is provided with position limiting convex ring, and this position limiting convex ring is formed with between first confined planes, 51, the first confined planes 51 and the socket cover 21 second elastic element 6 is installed.This second elastic element 6 can adopt spring; And be set on the push rod 5; Under the effect of second elastic element 6, when first end of push rod 5 slips into second groove 35 by first groove 33, first end of push rod 5 shoot out get into second groove 35 and be stuck in first groove 33 and second groove 35 between institute formation step place; Stop stretching out of lock core 3, make Locking Device be in released state.In the time need first end of push rod 5 being got into first groove 33 with the locking supporting leg by second groove 35, second end that only need haul push rod 5 outwards pulls out and gets final product.Second end of push rod 5 is equipped with second locating part 53 further, and this second locating part 53 can be the button cap that is spirally connected with push rod 5, in restriction push rod 5 self axial motion, also is convenient to push rod 5 is carried out the operation of outside drawing.
Preferably; Referring to Fig. 4, mounting hole 13 is a stepped hole, comprises the heavy caliber section in the outside and small-bore section of inboard; Heavy caliber section and small-bore section intersection form stage portion 131; It is spacing by the stage portion 131 of stepped hole that the another side of the position limiting convex ring of push rod 5 forms second confined planes, 55, the second confined planes 55, to guarantee that push rod 5 is in normal mode of operation.Preferably, the aperture of sleeve endoporus is identical with the aperture of heavy caliber section, and the centering of being convenient to sleeve 2 is installed.
The utility model also provides a kind of construction machinery and equipment, and comprise car body and be installed in the supporting leg on the car body, and above-mentioned Locking Device, wherein, this supporting leg can also can be telescopic leg for the oscillating type supporting leg, this Locking Device is mounted on the car body or on the supporting leg.What match with the dead bolt of Locking Device can be that lock block also can be a locking hole, be installed in accordingly on the supporting leg with Locking Device or car body on.
In sum, adopt the Locking Device of the utility model, have following technique effect: under the cooperation of push rod and first groove, second groove, need not the automatic spacing function that rotary locking cylinder can be realized Locking Device; Can realize automatic latch functions, and have simple in structure, handled easily, the advantage of good reliability.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. a Locking Device comprises lock shell (1) and is set in the lock core (3) in the said lock shell (1), it is characterized in that,
First end of said lock core (3) is provided with dead bolt (31), and first end of said lock shell (1) offers the through hole of corresponding said dead bolt (31), and said lock core (3) can stretch along self axial elasticity;
Offer first groove (33) that extends vertically on the periphery of said lock core (3); Said first groove (33) is communicated with second groove (35) near an end of said dead bolt (31), and the groove depth (H1) of said first groove (33) is less than the groove depth (H2) of said second groove (35);
Being equipped with on the said lock shell (1) can be along the flexible unlock piece (5) of said lock shell (1) radial elastic; First end of said unlock piece (5) stretches into the inside of said lock shell (1), and first end of said unlock piece (5) selectively with said first groove or said second groove fit.
2. Locking Device according to claim 1 is characterized in that, second end of said lock core (3) is equipped with guide rod (9), and the outer end of said guide rod (9) is passed by second end of said lock shell (1), in the outer end of said guide rod (9) first locating part (91) is installed; Be provided with first elastic element (7) between second end of second end of said lock core (3) and said lock shell (1).
3. Locking Device according to claim 2 is characterized in that, said first elastic element (7) is set on the said guide rod (9).
4. Locking Device according to claim 3 is characterized in that, said first locating part (91) is a locating dowel pin, and the outer end of said guide rod (9) is equipped with handle (4) through said locating dowel pin.
5. according to each described Locking Device in the claim 1 to 4, it is characterized in that,
Offer mounting hole (13) radially on the said lock shell (1), the position of corresponding said mounting hole (13) is provided with sleeve (2) on the periphery of said lock shell (1), and the free end of said sleeve (2) is equipped with socket cover (21);
Said unlock piece (5) comprises push rod, and said push rod is installed in the endoporus of said mounting hole (13) and said sleeve; First end of said push rod selectively is engaged in said first groove or said second groove, and second end of said push rod is passed by said socket cover (21);
The middle part of said push rod is formed with position limiting convex ring, between said position limiting convex ring and the said socket cover (21) second elastic element (6) is installed.
6. Locking Device according to claim 5 is characterized in that, said mounting hole (13) is a stepped hole, and it comprises the heavy caliber section that is positioned at radial outside and is positioned at small-bore section of radially inner side; The aperture of said sleeve endoporus is identical with the aperture of said heavy caliber section.
7. Locking Device according to claim 5 is characterized in that, said socket cover (21) is spirally connected with said sleeve (2).
8. Locking Device according to claim 5 is characterized in that, second end of said push rod is equipped with second locating part (53).
9. Locking Device according to claim 5 is characterized in that, said second elastic element (6) is set on the said push rod (5).
10. a construction machinery and equipment comprises car body and is installed in the supporting leg on the said car body, it is characterized in that, also comprises each described Locking Device in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203437657U CN202283910U (en) | 2011-09-14 | 2011-09-14 | Locking device and engineering machinery with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203437657U CN202283910U (en) | 2011-09-14 | 2011-09-14 | Locking device and engineering machinery with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202283910U true CN202283910U (en) | 2012-06-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203437657U Expired - Fee Related CN202283910U (en) | 2011-09-14 | 2011-09-14 | Locking device and engineering machinery with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202283910U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445076A (en) * | 2017-07-18 | 2017-12-08 | 北汽福田汽车股份有限公司 | Arm pin mechanism and crane |
| CN108177718A (en) * | 2017-12-11 | 2018-06-19 | 浙江英洛华康复器材有限公司 | Folding scooter |
| CN109421756A (en) * | 2017-08-31 | 2019-03-05 | 比亚迪股份有限公司 | Lockable mechanism |
| CN113683029A (en) * | 2021-08-11 | 2021-11-23 | 中际联合（北京）科技股份有限公司 | Locking device and lifting equipment |
| CN113697731A (en) * | 2021-08-11 | 2021-11-26 | 中际联合（北京）科技股份有限公司 | Lifting device and lifting system |
| WO2023015713A1 (en) * | 2021-08-11 | 2023-02-16 | 中际联合（北京）科技股份有限公司 | Lifting apparatus and lifting system |
-
2011
- 2011-09-14 CN CN2011203437657U patent/CN202283910U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445076A (en) * | 2017-07-18 | 2017-12-08 | 北汽福田汽车股份有限公司 | Arm pin mechanism and crane |
| CN107445076B (en) * | 2017-07-18 | 2019-02-26 | 北汽福田汽车股份有限公司 | Arm pin mechanism and crane |
| CN109421756A (en) * | 2017-08-31 | 2019-03-05 | 比亚迪股份有限公司 | Lockable mechanism |
| CN108177718A (en) * | 2017-12-11 | 2018-06-19 | 浙江英洛华康复器材有限公司 | Folding scooter |
| CN113683029A (en) * | 2021-08-11 | 2021-11-23 | 中际联合（北京）科技股份有限公司 | Locking device and lifting equipment |
| CN113697731A (en) * | 2021-08-11 | 2021-11-26 | 中际联合（北京）科技股份有限公司 | Lifting device and lifting system |
| WO2023015694A1 (en) * | 2021-08-11 | 2023-02-16 | 中际联合（北京）科技股份有限公司 | Locking apparatus and lifting/lowering device |
| WO2023015713A1 (en) * | 2021-08-11 | 2023-02-16 | 中际联合（北京）科技股份有限公司 | Lifting apparatus and lifting system |
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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: SANY AUTOMOBILE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: SANYI HEAVY INDUSTRY CO LTD Effective date: 20130506 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130506 Address after: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee after: SANY Automobile Manufacturing Co., Ltd. Address before: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee before: Sanyi Heavy Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120627 Termination date: 20170914 |
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| CF01 | Termination of patent right due to non-payment of annual fee |