CN202827521U - Locking device and engineering machinery - Google Patents
Locking device and engineering machinery Download PDFInfo
- Publication number
- CN202827521U CN202827521U CN201220458542.XU CN201220458542U CN202827521U CN 202827521 U CN202827521 U CN 202827521U CN 201220458542 U CN201220458542 U CN 201220458542U CN 202827521 U CN202827521 U CN 202827521U
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- shank
- dead bolt
- positioning groove
- block
- locking device
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Abstract
The utility model discloses a locking device and engineering machinery. The locking device comprises a locking dog, a lock shell, an elastic piece and an operation handle, wherein a containing passage is arranged inside the lock shell in a penetrating mode, the locking dog is installed inside the containing passage and is provided with a first end and a second end, the second end penetrates the containing passage and is connected with the operation handle, the elastic piece is arranged between the locking dog and the lock shell and is used for keeping the first end in an extending-out state, and the lateral wall of the containing passage is provided with a first positioning groove, a second positioning groove and a guide oblique face for the operation handle. According to the locking device and the engineering machine, the extending-out state of the first end of the lock dog can be controlled through the operation handle, the locking state in the use process can be controlled conveniently, and the whole structure is simple. The lateral wall of the containing passage is provided with the first positioning groove, the second positioning groove and the guide oblique face, the operation handle is capable of moving from the first positioning groove to the second positioning groove along the guide oblique face, and the frictional force between the operation handle and the guide oblique face needs overcoming in the operation process, and the operation is effort-saving and convenient.
Description
Technical field
The utility model relates to field of mechanical technique, particularly a kind of Locking Device and construction machinery and equipment.
Background technology
Telescopic outrigger in order to ensure engineering trucks such as concrete pump trucks is not thrown out of because swerving in the process of moving, is necessary to be equipped with corresponding Locking Device at each supporting leg, in order to supporting leg is locked on the retrieving position; And when engineering truck is in running order, in order to prevent supporting leg phenomenon occurs to regain when the holding state, and guarantee the span between supporting leg, equally also be necessary to be equipped with corresponding Locking Device supporting leg effectively and reliably is locked on the extended position.The Locking Device of telescopic outrigger requires locking reliable, simple in structure usually, and easy to operate.
At present, existing telescopic outrigger Locking Device is mostly by bearing pin, key seat, consist of its complex structure, operation inconvenience, poor reliability with the fixing parts such as steel cable of snap close; In addition, also can't satisfy simultaneously supporting leg is being stretched out and regaining locking demand under the two states; Some Locking Devices then adopt additional cams, guide groove etc. by utilizing lever principle reaching the labour-saving purpose, but make the total complicated too fat to move.
Therefore, how improving for existing telescopic outrigger Locking Device, use needs in order to more adapt to, is the technical barrier that those skilled in the art need to be resolved hurrily.
The utility model content
In view of this, the utility model is intended to propose a kind of Locking Device, and this Locking Device is simple in structure, and rapid operation is safe and reliable, and can satisfy telescopic outrigger and stretch out and regaining locking demand under the two states.The utility model has also proposed a kind of construction machinery and equipment.
First aspect, the utility model provides a kind of Locking Device, described Locking Device comprises dead bolt, lock housing, elastic component and lever, wherein: run through in the described lock housing to be provided with and take in passage, described dead bolt is arranged at described taking in the passage movably, described dead bolt has first end and the second end, described the second end passes the described passage of taking in and is connected with described lever, described elastic component is arranged between described dead bolt and the described lock housing, be used for described first end is remained on the state of stretching out, described taking on the sidewall that passage stretches out for described the second end is provided with the first positioning groove, the second positioning groove and guiding surface, described guiding surface is between described the first positioning groove and described the second positioning groove, described lever can move to from described the first positioning groove along described guiding surface described the second positioning groove, and when described lever was positioned at described the first positioning groove, described first end was in the state of stretching out, when described lever was positioned at described the second positioning groove, described first end was in retracted state.
Further, described taking in is provided with locating plate in the passage, be provided with via hole on the described locating plate, and the second end of described dead bolt passes described via hole and is connected with described lever.
Further, described locating plate is divided into the first installation passage and the second installation passage with the described interchannel of taking in; Described dead bolt comprises the first continuous shank and the second shank, the external diameter of described the second shank is less than described the first shank, described first end is positioned at described the first shank, described the second end is positioned at described the second shank, described the first shank slides and is arranged in the first installation passage, and described the second shank passes described via hole so that described the second end is connected in described the second installation passage with described lever.
Further, be provided with the installation through hole on the sidewall of described the first installation passage, be provided with lubricator cup in the described installation through hole.
Further, described elastic component is spring, and described spring housing is loaded on the second shank between described locating plate and described the first shank.
Further, described lever comprises the 3rd shank and the 4th shank, and described the 4th shank is heavy hammer structure, and an end of described the 3rd shank is connected with the second end of described dead bolt, and the other end four shank outer with being positioned at described lock housing is connected.
Second aspect, the utility model also provides a kind of construction machinery and equipment, second component and above-mentioned each described Locking Device that be provided with first component on the described construction machinery and equipment, can move with respect to first component, wherein, described lock housing is installed on the described first component, and the first end of described dead bolt is towards described second component; Be provided with backstop on the described second component, described backstop is provided with the locking face, and the first end that is used at described dead bolt is in when stretching out state and its locking.
Further, described backstop comprises the first block and the second block that is fixed on the described second component, be provided with the first locking face, the first wedge surface and the second wedge surface on described the first block and described the second block, described the first wedge surface and described the second wedge surface dos-à-dos arrange, described the first locking face links to each other with the bottom of described the first wedge surface: described the first block and described the second block interval arrange, and two the second wedge surfaces of described the first block and described the second block are relative; Can move to the second wedge surface from the first wedge surface of described the first block or described the second block when the first end of described dead bolt is in retracted state, the first end of described dead bolt be in when stretching out state can be successively from the second wedge surface, first wedge surface of described the first block or described the second block move to the first locking face and with its locking.
Further, the first end of described dead bolt is provided with folding wedge face structure or cone structure.
Further, the top of described the first wedge surface and described the second wedge surface is by the peak dot transition.
A kind of Locking Device that the utility model provides can be controlled the state that stretches out of dead bolt first end by lever, in order in use control lockup state, total is simple; And be provided with the first positioning groove, guiding surface and the second positioning groove at the sidewall of lock housing, lever can move to from the first positioning groove along guiding surface the second positioning groove, in operating process, only need overcome the friction force between lever and the guiding surface, rapid operation, convenience.
In a kind of construction machinery and equipment that the utility model provides, above-mentioned Locking Device is applied on two parts that can relatively stretch, for example, these two parts are specially the first supporting leg and are set in movably the second interior supporting leg of this first supporting leg, because above-mentioned Locking Device has above-mentioned effect, therefore, this project machinery also has corresponding technique effect.In addition, in a kind of concrete scheme, be provided with two blocks on the second component (such as the second supporting leg), so that second component is from regaining lockup state to stretching out lockup state or from stretching out lockup state to the process of regaining lockup state, only need carry out a unlock operation, not only satisfied telescopic outrigger and stretched out and regaining locking demand under the two states, and rapid operation, convenience.
Description of drawings
The accompanying drawing that consists of a part of the present utility model is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
The structural representation of a kind of Locking Device that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the decomposition texture schematic diagram of Locking Device shown in Figure 1;
Fig. 3 is the structural representation of lock housing among Fig. 2;
The part-structure schematic diagram of the construction machinery and equipment of a kind of application lock locking apparatus that Fig. 4 provides for the utility model embodiment, wherein, described Locking Device is in the first state;
The part-structure schematic diagram of the construction machinery and equipment of a kind of application lock locking apparatus that Fig. 5 provides for the utility model embodiment, wherein, described Locking Device is in the second state;
The part-structure schematic diagram of the construction machinery and equipment of a kind of application lock locking apparatus that Fig. 6 provides for the utility model embodiment, wherein, described Locking Device is in the third state;
The part-structure schematic diagram of the construction machinery and equipment of a kind of application lock locking apparatus that Fig. 7 provides for the utility model embodiment, wherein, described Locking Device is in the 4th state;
The part-structure schematic diagram of the construction machinery and equipment of a kind of application lock locking apparatus that Fig. 8 provides for the utility model embodiment, wherein, described Locking Device is in the 5th state;
Fig. 9 is the structural representation of the first block and the second block among Fig. 4 to Fig. 8;
Figure 10 is the structural representation of another embodiment of dead bolt of Locking Device shown in Figure 1.
The main element nomenclature:
1 dead bolt
2 lock housings
3 mounting flanges
4 lubricator cups
5 levers
6 springs
7 latches
8 first blocks
9 second blocks
11 first shanks
12 second shanks
111 wedge surfaces
112 wedge surfaces
113 transition faces
114 conical surfaces
121 connecting bores
21 first install passage
22 install through hole
23 second positioning grooves
24 second install passage
25 locatings plate
26 via holes
27 first positioning grooves
28 guiding surfaces
51 the 3rd shanks
52 the 4th shanks
511 pin holes
891 first locking faces
892 first wedge surfaces
893 peak dots
894 second wedge surfaces
100 second supporting legs
The specific embodiment
Should be pointed out that in this part that to the description of concrete structure and description order only be explanation to specific embodiment, should not be considered as that protection domain of the present utility model is had any restriction.In addition, in the situation that do not conflict, embodiment and the feature among the embodiment in the utility model can make up mutually.
Please also refer to Fig. 1 to shown in Figure 10, be described in detail below in conjunction with Locking Device and the construction machinery and equipment of accompanying drawing to the utility model embodiment.
To shown in Figure 3, the Locking Device of this embodiment mainly comprises dead bolt 1, lock housing 2, mounting flange 3, lever 5, spring 6 and latch 7 etc. referring to Fig. 1.
Wherein, as shown in Figures 2 and 3, run through in the lock housing 2 to be provided with and take in passage, this is taken in and is provided with locating plate 25 in the passage, is provided with via hole 26 on the locating plate 25, and locating plate 25 is taken in interchannel with this and is divided into the first installation passage 21 and the second installation passage 24.Dead bolt 1 comprises the first continuous shank 11 and the second shank 12, the external diameter of the second shank 12 is slightly smaller than the external diameter of the first shank 11, two elongated ends of the first shank 11 and the second shank 12 as first end and second end of dead bolt 1, are provided with connecting bore 121 on this second end respectively.
The first shank 11 slides and is arranged in the first installation passage 21, namely the outside face of the first shank 11 and first is installed the inside face bearing fit of passage 21, spring 6 is set on the second shank 12 between the first shank 11 and the locating plate 25, the two ends of spring 6 are subject to the spacing of the first shank 11 cascaded surfaces and locating plate 25, thereby dead bolt 1 is applied application force, so that the elongated end of the first shank 11 (being the first end of dead bolt 1) remains on the state of stretching out.
The 4th shank 52 of lever 5 is positioned at second and installs outside the passage 24, second installs in the passage 24 for being provided with the first positioning groove 27 on the sidewall that crosses out for the 3rd shank 51, guiding surface 28 and the second positioning groove 23, guiding surface 28 is between the first positioning groove 27 and the second positioning groove 23, play transitional function, the 3rd shank 51 can move to from the first positioning groove 27 along guiding surface 28 the second positioning groove 23, and when the 3rd shank 51 is positioned at the first positioning groove 27, the first end of dead bolt 1 is in the state of stretching out under the effect of spring 6 (can be referring to Fig. 4, Fig. 7 and situation shown in Figure 8), when the 3rd shank 51 is positioned at the second positioning groove 23, because overcome the application force of spring 6, the first end of dead bolt 1 is in retracted state (can be referring to Fig. 1, shown in Figure 5).
Mounting flange 3 is fixed on the lateral wall of lock housing 2, during implementation, can be captiveed joint with the lateral wall of lock housing 2 in the flange hole edge of mounting flange 3 by welding manner; In use, above-mentioned Locking Device can be applicable on the telescopic component, this telescopic component comprises first component and second component that can be flexible with respect to first component, during implementation, Locking Device can be fixedly installed on the first component by mounting flange 3, and first of lock housing 2 is installed passage 21 towards second component, and namely the direction of stretching out of the first end of dead bolt 1 is pointed to second component, is provided with the locking structure that is complementary with dead bolt 1 first end on the second component; In addition, when the 3rd shank 51 was in the second positioning groove 23, the 3rd shank 51 was in horizontality substantially, and the first positioning groove 27 is positioned at the below of the second positioning groove 23.So in use, can be by the state that stretches out of lever 5 control dead bolts 1 first end, thus the control second component is not only simple in structure with respect to the lockup state of first component, and rapid operation, convenience.
Extremely shown in Figure 9 referring to Fig. 2, the construction machinery and equipment of this embodiment is provided with the Locking Device of telescopic component and above-described embodiment, in the present embodiment, as telescopic component explanation for example, this telescopic outrigger comprises the first supporting leg (not shown) and is set in movably the second interior supporting leg 100 of this first supporting leg with telescopic outrigger.
Wherein, Locking Device is fixedly installed on the first supporting leg by mounting flange 3, and lock housing 2 first passage 21 is installed towards the second supporting leg 100, namely the direction of stretching out of the first end of dead bolt 1 is pointed to the second supporting leg 100; In addition, when the 3rd shank 51 was in the second positioning groove 23, the 3rd shank 51 was in horizontality substantially, and the first positioning groove 27 is positioned at the below of the second positioning groove 23.
The upper interval of the length direction of the second supporting leg 100 (i.e. flexible direction) is fixedly installed the first block 8 and the second block 9, the first block 8 is identical with the structure of the second block 9, be provided with the first locking face 891, the first wedge surface 892, peak dot 893 and the second wedge surface 894(are as shown in Figure 9), the first wedge surface 892 and the 894 dos-à-dos settings of the second wedge surface, the first locking face 891 links to each other with the bottom of the first wedge surface 892, the top of the first wedge surface 892 and the second wedge surface 894 links to each other by peak dot 893 transition, peak dot 893 is equivalent to a facet, and the first wedge surface 892 length from bottom to top is less than the second wedge surface 894 length from bottom to top.In specific implementation process, the first block 8 and the second block 9 are welded in respectively on the length direction of the second supporting leg 100, its position is respectively the second supporting leg 100 and needs after stretching out and after regaining the position of pinning, and two the second wedge surfaces 894 of the first block 8 and the second block 9 are oppositely arranged.
In conjunction with shown in Figure 4, when the second supporting leg 100 is in retrieving position, the 3rd shank 51 of lever 5 is arranged in the first positioning groove 27, the first end of dead bolt 1 be in the state of stretching out and with the first locking face 891 lockings of the first block 8, thereby prevent that the second supporting leg 100 from skidding off with respect to the first supporting leg from retrieving position.
In conjunction with shown in Figure 5, in operation process, when needs stretch out the second supporting leg 100, can stir lever 5 according to the direction of curved arrow shown in the figure it is moved to the second positioning groove 23 from the first positioning groove 27 along guiding surface 28, thereby make the first end of dead bolt 1 be in retracted state from 891 disengagings of the first locking face.
In conjunction with shown in Figure 6, when the second supporting leg 100 stretches out according to the direction of straight arrows, the first end of dead bolt 1 moves to the top from the bottom of the first wedge surface 892 of the first block 8, until peak dot 893, in this process, the first end of dead bolt 1 continues to regain, and makes the 3rd shank 51 of lever 5 break away from the spacing of the second positioning groove 23, and turns to the top of the first positioning groove 27 according to the curved arrow among the figure.
In conjunction with shown in Figure 7, when the second supporting leg 100 continues to stretch out according to the direction of straight arrows, on the first end of dead bolt 1 moves to the second supporting leg 100 between the first block 8 and the second block 9 from peak dot 893, second wedge surface 894 of the first block 8 successively, in this process, under the Action of Gravity Field of the 4th shank 52, and under the effect of spring 6, the 3rd shank 51 will move in the first positioning groove 27 from the second positioning groove 23 along guiding surface 27, make the first end of dead bolt 1 be in the state of stretching out.
In conjunction with shown in Figure 8, when the second supporting leg 100 continues to stretch out until when stretching out fully, the first end of dead bolt 1 will move to the second wedge surface 894 of the second block 9 successively, peak dot 893, the first wedge surface 892, until the first locking face 891, in this process, the 3rd shank 51 of lever 5 can be installed axially moving back and forth of passage 24 along second, but under the Action of Gravity Field of the 4th shank 52, the first end of dead bolt 1 is when arriving the first locking face 891 of the second block 9, the 3rd shank 51 of lever 5 will be arranged in the first positioning groove 27, the first end of dead bolt 1 will be in the state of stretching out and with the first locking face 891 lockings of the second block 9, thereby prevent that the second supporting leg 100 that stretches out from regaining with respect to the first supporting leg.
After operation is finished, when the second supporting leg 100 needs to regain, once get final product according to the above-mentioned steps operation.
In the various embodiments described above, for the first end that improves dead bolt 1 performance of passing through at the first wedge surface 892 of the first block 8 and the second block 9 and the second wedge surface 894, folding wedge face structure can be set at the first end of dead bolt 1, as shown in Figure 2, be provided with wedge surface 111, wedge surface 112 and transition face 113 on the first end of dead bolt 1, wedge surface 111 and wedge surface 112 dos-à-dos settings, transition face 113 is between the top of wedge surface 111 and wedge surface 112, so be provided with the first end that helps dead bolt 1 and move at the first wedge surface 892 or the second wedge surface 894, and slide at peak dot 893; Also can be as shown in figure 10, at the first end of dead bolt 1 cone structure is set, the effect of the conical surface 114 of this cone structure is identical with the effect of wedge surface 111 and wedge surface 112.
In the various embodiments described above, for the first shank 11 and the first bearing fit performance that passage 21 is installed that improves dead bolt 1, can arrange at the first sidewall that passage 21 is installed through hole 22 is installed, be provided with lubricator cup 4 in this installation through hole 22, be used to the first shank 11 and first to install between the passage 21 lubricating oil is provided.
In the various embodiments described above, adopt spring 6 that the first end of dead bolt 1 is remained on the state of stretching out, in other embodiments, also can adopt other forms of elastic component that the first end of dead bolt 1 is remained on the state of stretching out.
In the various embodiments described above, preferably the afterbody of lever 1 is arranged to heavy hammer structure, in other embodiments, also can as required the afterbody of lever 1 be arranged to other forms, can also increase by a cover driver train for lever 1, this driver train can be realized lever 1 is moved to the second positioning groove 23 from the first positioning groove 27 along guiding surface 28, perhaps lever 1 is moved to the first positioning groove 27 from the second positioning groove 23 along guiding surface 28, so setting also can realize corresponding function of the present utility model.
Above-mentioned each construction machinery and equipment is implemented in the example, preferably at the second supporting leg 100 the first block 8 and the second block 9 are set, in the Other Engineering mechanical embodiments, the backstop that is used for cooperating with the first end of dead bolt 1 that is arranged on the second supporting leg 100 also can adopt other forms (comprising existing common backstop), for example, this backstop is the whole block that is fixed on the second supporting leg 100 length directions, this integral body block long (substantially identical with the distance between the first locking face 891 of the first locking face 891 of the first block 8 and the second block 9), and should be provided with corresponding locking face on the two ends of integral body block, the first end of dead bolt 1 can with the locking face locking at the two ends of this integral body block, also can be at the surface sliding of whole block, so setting also can realize corresponding function of the present utility model.
Above-mentioned each construction machinery and equipment is implemented in the example, this Locking Device is to be applied to telescopic outrigger explanation for example, in the Other Engineering mechanical embodiments, the locking between two parts that also this Locking Device can be applied to relatively stretch for example is applied between one-level telescopic outrigger and the vehicle frame.
In the various embodiments described above, Locking Device can be applied to concrete pump truck, hoisting crane etc. and be provided with on the construction machinery and equipment of telescopic component.
A kind of construction machinery and equipment that is provided with above-mentioned Locking Device that the utility model embodiment provides can be controlled the state that stretches out of dead bolt first end by lever, in order in use control the lockup state of telescopic outrigger, total is simple; And be provided with the first positioning groove, guiding surface and the second positioning groove at the sidewall of lock housing, lever can move to from the first positioning groove along guiding surface the second positioning groove, in operating process, only need overcome the friction force between lever and the guiding surface, rapid operation, convenience; In addition, this Locking Device also comprises two blocks on the second supporting leg that is fixed in telescopic outrigger, so that the second supporting leg is from regaining lockup state to stretching out lockup state or from stretching out lockup state to the process of regaining lockup state, only need carry out a unlock operation, not only satisfied telescopic outrigger and stretched out and regaining locking demand under the two states, and rapid operation, convenience.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. Locking Device, it is characterized in that: comprise dead bolt (1), lock housing (2), elastic component and lever (5), wherein, run through to be provided with in the described lock housing (2) and take in passage, described dead bolt (1) is arranged at described taking in the passage movably, described dead bolt (1) has first end and the second end, described the second end passes the described passage of taking in and is connected with described lever (5), described elastic component is arranged between described dead bolt (1) and the described lock housing (2), be used for described first end is remained on the state of stretching out, described taking on the sidewall that passage stretches out for described the second end is provided with the first positioning groove (27), the second positioning groove (23) and guiding surface (28), described guiding surface (28) is positioned between described the first positioning groove (27) and described the second positioning groove (23), described lever (5) can move to described the second positioning groove (23) along described guiding surface (28) from described the first positioning groove (27), and, when described lever (5) is positioned at described the first positioning groove (27), described first end is in the state of stretching out, when described lever (5) was positioned at described the second positioning groove (23), described first end was in retracted state.
2. Locking Device as claimed in claim 1, it is characterized in that: described taking in is provided with locating plate (25) in the passage, be provided with via hole (26) on the described locating plate (25), the second end of described dead bolt (1) passes described via hole (26) and is connected with described lever (5).
3. Locking Device as claimed in claim 2 is characterized in that: described locating plate (25) is divided into the described interchannel of taking in first passage (21) and the second installation passage (24) is installed; Described dead bolt (1) comprises continuous the first shank (11) and the second shank (12), the external diameter of described the second shank (12) is less than described the first shank (11), described first end is positioned at described the first shank (11), described the second end is positioned at described the second shank (12), described the first shank (11) slides and is arranged in the first installation passage (21), and described the second shank (12) passes described via hole (26) so that described the second end is connected in described the second installation passage (24) with described lever (5).
4. Locking Device as claimed in claim 3 is characterized in that: be provided with on the sidewall of described the first installation passage (21) through hole (22) is installed, be provided with lubricator cup (4) in the described installation through hole (22).
5. Locking Device as claimed in claim 3, it is characterized in that: described elastic component is spring (6), described spring (6) is set on the second shank (12) between described locating plate (25) and described the first shank (11).
6. such as each described Locking Device of claim 1 to 5, it is characterized in that: described lever (5) comprises the 3rd shank (51) and the 4th shank (52), described the 4th shank (52) is heavy hammer structure, one end of described the 3rd shank (51) is connected with the second end of described dead bolt (1), and the other end four shank (52) outer with being positioned at described lock housing (2) is connected.
7. construction machinery and equipment, it is characterized in that: be provided with on the described construction machinery and equipment first component, can be flexible with respect to first component second component and each described Locking Device of claim 1 to 6, wherein, described lock housing (2) is installed on the described first component, and the first end of described dead bolt (1) is towards described second component; Be provided with backstop on the described second component, described backstop is provided with the locking face, and the first end that is used at described dead bolt (1) is in when stretching out state and its locking.
8. construction machinery and equipment as claimed in claim 7, it is characterized in that: described backstop comprises the first block (8) and the second block (9) that is fixed on the described second component, be provided with the first locking face (891) on described the first block (8) and described the second block (9), the first wedge surface (892) and the second wedge surface (894), described the first wedge surface (892) and described the second wedge surface (894) dos-à-dos setting, described the first locking face (891) links to each other with the bottom of described the first wedge surface (892): described the first block (8) and described the second block (9) interval arrange, and two second wedge surfaces (894) of described the first block (8) and described the second block (9) are relative; Can move to the second wedge surface (894) from first wedge surface (892) of described the first block (8) or described the second block (9) when the first end of described dead bolt (1) is in retracted state, the first end of described dead bolt (1) be in when stretching out state can be successively from the second wedge surface (894), first wedge surface (892) of described the first block (8) or described the second block (9) move to the first locking face (891) and with its locking.
9. such as claim 7 or 8 described construction machinery and equipments, it is characterized in that: the first end of described dead bolt (1) is provided with folding wedge face structure or cone structure.
10. construction machinery and equipment as claimed in claim 8 is characterized in that: the top of described the first wedge surface (892) and described the second wedge surface (894) is by peak dot (893) transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220458542.XU CN202827521U (en) | 2012-09-10 | 2012-09-10 | Locking device and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220458542.XU CN202827521U (en) | 2012-09-10 | 2012-09-10 | Locking device and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202827521U true CN202827521U (en) | 2013-03-27 |
Family
ID=47939290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220458542.XU Expired - Lifetime CN202827521U (en) | 2012-09-10 | 2012-09-10 | Locking device and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202827521U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105799662A (en) * | 2016-04-11 | 2016-07-27 | 奇瑞汽车股份有限公司 | Automobile supporting system |
| 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 |
| CN108244695A (en) * | 2018-01-17 | 2018-07-06 | 常德烟草机械有限责任公司 | A kind of pre- limiting device for filament and the rolling up and connecting machine with the limiting device |
-
2012
- 2012-09-10 CN CN201220458542.XU patent/CN202827521U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105799662A (en) * | 2016-04-11 | 2016-07-27 | 奇瑞汽车股份有限公司 | Automobile supporting system |
| 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 |
| CN108244695A (en) * | 2018-01-17 | 2018-07-06 | 常德烟草机械有限责任公司 | A kind of pre- limiting device for filament and the rolling up and connecting machine with the limiting device |
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Owner name: SANY AUTOMOBILE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: SANYI HEAVY INDUSTRY CO LTD Effective date: 20130507 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20130507 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: SANY HEAVY INDUSTRY Co.,Ltd. |
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