CN206915562U - A kind of novel self-lock Lift crowbar - Google Patents
A kind of novel self-lock Lift crowbar Download PDFInfo
- Publication number
- CN206915562U CN206915562U CN201720740570.3U CN201720740570U CN206915562U CN 206915562 U CN206915562 U CN 206915562U CN 201720740570 U CN201720740570 U CN 201720740570U CN 206915562 U CN206915562 U CN 206915562U
- Authority
- CN
- China
- Prior art keywords
- check plate
- lift crowbar
- hinged
- stopper slot
- lifting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of novel self-lock Lift crowbar, is related to part processing lifting field, including check plate, Lift crowbar；Lift crowbar one end is the inserted terminal of lifting part, and the other end of Lift crowbar is the lifting end of connection lifting appliance, and stopper slot is provided between inserted terminal and lifting end；Check plate one end has the hinged end with being hinged by lifting part, the other end of check plate has the fixed connection end being fixedly connected with by lifting part, hinged end and fixed connection end are located at Lift crowbar both sides, check plate is hinged center around hinged end and is transferred in stopper slot, realize the locking of Lift crowbar, the hinged end of the check plate and fixed connection end are equipped with attachment screw, and the stopper slot is annular groove, and the check plate fixed connection end corresponds to attachment screw and is provided with U-lag.By setting check plate to be stuck in Lift crowbar stopper slot, realize Lift crowbar without using the effect being threadedly coupled with regard to mo(u)lded piece and Lift crowbar easy to disassemble can be sling.
Description
Technical field
Part processing lifting field is the utility model is related to, is a kind of novel self-lock Lift crowbar specifically.
Background technology
Part on aircraft is general using blank is first cast out due to complex-shaped, then in machining, due to casting
Blank is all very heavy, therefore is typically that mo(u)lded piece is lifted into inside stock-removing machine with the mode of Lift crowbar to be processed, at present
The Lift crowbar species of mo(u)lded piece is various, and conventional has lifting bolt, is cast into Lift crowbar etc..Lifting bolt is mainly used in light weight
The lifting of workpiece, if workpiece material belongs to the bad hard brittle material of intensity, and it is heavier, it is safe to use in order to ensure, it is optional
Select and be cast into a steel part within the workpiece, screwed hole is processed thereon, load lifting bolt lifting workpiece, or selection is in workpiece
It is middle to be cast into Lift crowbar to lift workpiece, but both modes respectively have shortcoming.
It is cast into after Lift crowbar is cast into workpiece, caput is emerged workpiece outer wall, is connected firmly, can not be taken out with workpiece, when workpiece uses
It can increase using space；Lifting bolt is connected by screwed hole with workpiece, and handling need to use spanner or specific purpose tool by lifting bolt
It is screwed into cast blank, it is impossible to which quick despatch, some are needed in the case of loading and unloading repeatedly, and the screw thread of lifting bolt or cast blank holds
Easy stripped thread, bring great potential safety hazard.
Utility model content
The purpose of this utility model is to provide a kind of novel self-lock Lift crowbar, for solve in the prior art Lift crowbar by
In thread damage brings potential safety hazard the problem of.The utility model is realized by setting check plate to be stuck in Lift crowbar stopper slot
Lift crowbar is without using the effect being threadedly coupled with regard to that can sling mo(u)lded piece.
The utility model is achieved through the following technical solutions：
A kind of novel self-lock Lift crowbar, including check plate and Lift crowbar, it is characterised in that：
Described Lift crowbar one end is the inserted terminal of lifting part, and the other end of Lift crowbar is the lifting of connection lifting appliance
End, stopper slot is provided between inserted terminal and lifting end；
Described check plate one end has the hinged end with being hinged by lifting part, and the other end of check plate has with being lifted by crane
The fixed connection end that part is fixedly connected, hinged end and fixed connection end are located at Lift crowbar both sides, and check plate is cut with scissors around hinged end
The center of connecing is transferred in stopper slot, realizes the locking of Lift crowbar.
Inserted terminal insertion by lifting part is in the hole that cast blank is cast in advance, then hinge of the check plate around hinged end
The center of connecing is transferred in Lift crowbar stopper slot, and fixed connection end is fixedly connected on cast blank, is slided so as to limit Lift crowbar
Go out cast blank, realize the locking of Lift crowbar.Herein it should be noted that the be hinged side of the hinged end of check plate and cast blank
Formula can realize that a kind of mode is that pin hole is processed on cast blank in the following way, the hinged end processing of check plate
Go out pin hole, the hinged end of check plate is hinged by through hole pin with cast blank；Another way is processed on cast blank
Go out screwed hole, the hinged end of check plate processes screw via, is hinged the hinged end of check plate with cast blank by screw；
Can certainly directly be poured into pin or screw on cast blank, check plate hinged end processes pin hole or screw
Via realizes the be hinged of check plate and cast blank.The Gu Ding connection ends of check plate refer to being fixedly connected for cast blank, stop
After dynamic plate check plate is transferred to Lift crowbar stopper slot around the be hinged center of hinged end, check plate fixed connection end and cast blank
The modes such as threaded connection, interference connection can be used to achieve a fixed connection, and this is fixedly connected.A kind of mode of threaded connection
It is that check plate processes screw via, screwed hole is processed on cast blank, check plate is fixedly attached to casting hair with screw
On base；Interference connection a kind of mode be that cast blank and check plate fixed connection end process pin hole, by pin with
The interference fit of pin hole realizes being fixedly connected for cast blank and check plate fixed connection end.Certain those skilled in the art can
The hinge of check plate hinged end and cast blank is realized in a manner of using any articulated manner well known in the art or be fixedly connected
Connect and be fixedly connected with check plate fixed connection end and cast blank.Requiring emphasis is, is illustrated with cast blank, is only for
Bright structural principle of the present utility model, therefore those skilled in the art are not construed as to restriction of the present utility model.Limitation
The mechanism of action that Lift crowbar skids off cast blank is that check plate is stretched into stopper slot, due to the barrier effect of check plate, makes lifting
Rod can not skid off cast blank.Therefore the annular groove that stopper slot both can circumferentially open up along Lift crowbar, makes check plate only limit
The U-lag that the axial movement of weight rod or edge start with Lift crowbar axis vertical direction, makes check plate both limit lifting mandrel
To motion, Lift crowbar is limited again and is rotated.
Preferably, the hinged end of the check plate and fixed connection end are equipped with attachment screw.When rising on cast blank
When weight rod needs to take out, first have to check plate producing stopper slot, therefore set attachment screw to realize threaded connection, facilitate stop
The dismounting of plate, Lift crowbar is taken out so as to convenient.
Preferably, the stopper slot is annular groove.Because when lifting by crane cast blank, lifting appliance can be produced and rocked, casting
Make blank and relative motion is had with respect to Lift crowbar, so as to which Lift crowbar can apply the power of circumferential and axial simultaneously to check plate；From
Functionally say, as long as Lift crowbar does not skid off cast blank axially movable, can be achieved with the lifting of cast blank.Annular is set
Groove, Lift crowbar can not axially move, but can freely rotate, so as to reduce Lift crowbar because rotation is applied to the power of check plate,
Prevent the excessive damage of check plate stress from triggering safety problem.
Preferably, the check plate fixed connection end corresponds to attachment screw and is provided with U-lag.The U of check plate fixed connection end
Shape groove, when the check plate is produced stopper slot, do not interfere with attachment screw.Therefore check plate only need to unscrew attachment screw without
Attachment screw whole dismounting, which is got off, can allow check plate to produce stopper slot along hinged end center, real so as to split out Lift crowbar
The fast quick-detach of existing Lift crowbar.
Preferably, the check plate is horizontally disposed and the hinged end of check plate and Gu Ding connection ends correspond to attachment screw and be all provided with
There is U-lag.Check plate both ends are respectively provided with U-lag, when the check plate is moved along the opposite direction of opening direction, are not sent out with attachment screw
Raw interference, while check plate is horizontally disposed, by gravity with regard to that can block stopper slot, therefore when dismantling Lift crowbar, will need to only stop
Opposite direction of the dynamic plate along opening direction is taken out, so that it may, only need to be by check plate U-lag when pulling down Lift crowbar, and assembling Lift crowbar
Attachment screw is blocked, realizes the rapid-assembling/disassembling of Lift crowbar.
Preferably, described attachment screw one end is the end of thread for having connected hanging object, and the other end of attachment screw is stub end；
Step is provided between the end of thread and stub end, the diameter of step is more than the diameter of the end of thread and less than the diameter of stub end.Use
Plain screw, the bad gap for holding screw stub end and check plate, and check plate, in rotary course, screw can follow one
Rotation is played, is easily released, therefore attachment screw uses stepped screw, can not allow directly by screw lock on cast blank
Easily loosen, while check plate hinged end and can rotates in the outside face of step.
Preferably, the depth of the stopper slot is less than a quarter of inserted terminal diameter.Spacing groove depth is excessive, has caused
Stress concentration of the weight rod at stopper slot is obvious, drastically reduced the intensity of Lift crowbar.Therefore the depth of stopper slot is less than grafting
The a quarter of end diameter can mitigate stress concentration phenomenon, ensure the intensity of Lift crowbar.
Preferably, it is provided with deep-slotted chip breaker corresponding with stopper slot in the middle part of the check plate.To make check plate effectively block
Weight rod, it is necessary to increase the contact area of check plate and stopper slot, therefore check plate sets arc corresponding with stopper slot as far as possible
Shape groove.The setting of deep-slotted chip breaker makes check plate avoid the place interference engaged with stopper slot, makes check plate closer to stopper slot
Or the axis of Lift crowbar, therefore increase the contact area of check plate and stopper slot.
The utility model compared with prior art, has advantages below and beneficial effect：
（1）By setting check plate to be stuck in Lift crowbar stopper slot, realize Lift crowbar without using threaded connection with regard to that can sling
The effect of mo(u)lded piece and Lift crowbar easy to disassemble；
（2）By setting attachment screw, the effect for being easy to check plate to dismantle is realized；
（3）By setting annular groove, realization prevents cast blank from damaging the effect of check plate in rotary course is sling；
（4）By setting deep-slotted chip breaker, increase check plate and the effect of stopper slot contact area are realized；
（5）By setting U-lag, the effect of rapid-assembling/disassembling Lift crowbar is realized；
（6）By setting stepped screw, the effect that check plate freely rotates is realized.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is Lift crowbar structural representation；
Fig. 3 is stop plate structure schematic diagram；
Fig. 4 is attachment screw structural representation；
Fig. 5 is the structural representation of embodiment 8
Wherein, 1- check plates；2- attachment screws；3- Lift crowbars；4- cast blanks；11-U shape grooves；12- deep-slotted chip breakers；21- spiral shells
Line end；22- steps；23- stub ends；Hexagonal groove in 24-；31- inserted terminals；32- stopper slots；33- lifts by crane end.
Embodiment
The utility model is described in further detail with reference to preferred embodiment of the present utility model, but this practicality
New embodiment not limited to this.
Embodiment 1：
With reference to accompanying drawing 1-4, a kind of novel self-lock Lift crowbar, including check plate 1 and Lift crowbar 3；Described one end of Lift crowbar 3 is
The inserted terminal 31 of part is lifted by crane, the other end of Lift crowbar 3 is the lifting end 33 of connection lifting appliance, and inserted terminal 31 is with lifting by crane end 33
Between be provided with stopper slot 32；Described one end of check plate 1 has the hinged end with being hinged by lifting part, the other end of check plate 1
With the fixed connection end being fixedly connected with by lifting part, hinged end and fixed connection end are located at the both sides of Lift crowbar 3, check plate
1 is hinged center around hinged end is transferred in stopper slot 32, realizes the locking of Lift crowbar 3.In the present embodiment, the hinged end of check plate 1
By on pin-hinges and cast blank 4, pin is interference fitted with cast blank 4, and being hinged splaying with check plate 1 coordinates, Gu
Determine connection end to be fixedly connected with cast blank 4 using screw.
Operation principle：
When lifting by crane cast blank 4 using the present apparatus, first by check plate 1 with pin-hinges to cast blank 4, Ran Houqi
Weight rod 3 is inserted in the hole that cast blank 4 casts or processed in advance, and pivot stop plate 1 is caught in stopper slot 32, by check plate 1
It is screwed and is connected on cast blank 4, is hung in cast blank 4 in stock-removing machine by Lift crowbar 3 using lifting appliance.
Embodiment 2：
Preferably to implement the utility model, facilitate the dismounting of check plate, on the basis of embodiment 1, with reference to accompanying drawing 1-
4, further, the hinged end of the check plate 1 and fixed connection end are equipped with attachment screw 2.
Operation principle：
When lifting by crane cast blank 4 using the present apparatus, check plate 1 is hinged to cast blank 4 by attachment screw 2 first
On, Lift crowbar 3 is inserted into, pivot stop plate 1 is caught in stopper slot 32, and check plate 1 is fixedly attached into casting with attachment screw 2
Make on blank 4, start lifting appliance, hung in cast blank 4 in stock-removing machine by Lift crowbar 3.Need to remove the He of Lift crowbar 3
During check plate 1, the attachment screw 2 at the both ends of check plate 1 is backed out, removes check plate 1, further takes out Lift crowbar 3.
Embodiment 3：
Preferably to implement the utility model, prevent cast blank from damaging check plate in rotary course is sling, implementing
On the basis of example 1, with reference to accompanying drawing 1-4, further, the stopper slot 32 is annular groove.
Operation principle:
Because stopper slot 32 is annular groove, check plate 1 can only limit the axial movement of Lift crowbar 3, and Lift crowbar 3 can be along
The axis of Lift crowbar 3 rotates, therefore is applied to power of the check plate 1 along Lift crowbar tangential direction and reduces, and reduces answering for check plate 1
Power, improve reliability of the present utility model.
Embodiment 4：
Preferably to realize the utility model, the effect of rapid-assembling/disassembling Lift crowbar is realized, on the basis of embodiment 2, knot
Accompanying drawing 1-4 is closed, further, the fixed connection end of check plate 1 corresponds to attachment screw 2 and is provided with U-lag 11.
Operation principle：
When needing to dismantle Lift crowbar 3, attachment screw 2 to the check plate 1 for unscrewing the fixed connection end of check plate 1 can be free
Rotation, pivot stop plate 1 leave stopper slot 32, you can take out Lift crowbar 3.
Embodiment 5：
Preferably to implement the utility model, the fast quick-detach of Lift crowbar 3 is realized, on the basis of embodiment 2, with reference to attached
Fig. 1-4, further, the check plate 1 is horizontally disposed and the hinged end of check plate 1 and Gu Ding connection ends correspond to attachment screw 2
It is equipped with U-lag 11.In the present embodiment, attachment screw 2 both can be to be removably connected to cast blank 4 by screw thread, also may be used
To be non-dismountable to be connected to by welding or casting etc. on cast blank 4.
Operation principle：
1. attachment screw 2 is situation about being removably connected on cast blank 4, when installing Lift crowbar 3, first by Lift crowbar
3 insertion cast blanks 4, check plate 1 is then caught in stopper slot 32, the attachment screw 2 at locking check plate 1 both ends；Dismantle lifting
During rod 3, unscrewing attachment screw 2 to check plate 1 can be freely movable, takes out check plate 1, pulls down Lift crowbar 3, simple fast
It is prompt.
2. attachment screw 2 is to weld or cast directly over the situation on cast blank 4, when assembling Lift crowbar 3, will rise first
Weight rod 3 inserts cast blank 4, and then the U-lag 11 at the both ends of check plate 1 is respectively aligned to the attachment screw 2 at both ends and is caught in, in gravity
In the presence of, check plate 1 is caught in stopper slot 32, realizes locking Lift crowbar 3, only need to be by stop when needing to dismantle Lift crowbar 3
Opposite direction of the plate 1 along the opening direction of U-lag 11 is taken out, very convenient quick.
Embodiment 6：
Preferably to implement the utility model, check plate 1 is set freely to rotate, on the basis of embodiment 2, with reference to attached
Fig. 1-4, further, described one end of attachment screw 2 are the end of thread 21 for having connected hanging object, and the other end of attachment screw 2 is big
Head end 23；Step 22 is provided between the end of thread 21 and stub end 23, the diameter of step 22 is more than the diameter of the end of thread 21 and is less than
The diameter of stub end 23.
Operation principle：
The end of thread 21 is used to attachment screw 2 being connected to cast blank 4, the platform of the attachment screw 2 of the hinged end of check plate 1
Rank 22 and the hinged end of check plate 1 are hinged, and the thickness of the axial length and check plate 1 of step 22 is adapted, so as to ensure stop
Plate 1 can be rotated freely.
Embodiment 7：
Preferably to implement the utility model, ensure the intensity of Lift crowbar 3, on the basis of embodiment 3, with reference to accompanying drawing 1-
4, further, the depth of the annular groove is less than a quarter of the diameter of inserted terminal 31.
Operation principle：
When material stress, the stress of material surface is referred to as stress concentration much larger than the phenomenon of mean stress, in this implementation
In example, due to the presence of stopper slot 32, Lift crowbar 3 is set stress concentration to be here present, it is this when the depth of stopper slot 32 is deeper
The phenomenon of stress concentration is more obvious, as long as therefore the depth of stopper slot 32 meet that check plate 1 can block.
Embodiment 8：
Preferably to implement the utility model, the contact area of increase check plate 1 and stopper slot 32, in the base of embodiment 3
On plinth, with reference to accompanying drawing 1-5, further, the middle part of check plate 1 is provided with the deep-slotted chip breaker 12 matched with stopper slot 32.
Operation principle：
With reference to accompanying drawing 5, due to setting deep-slotted chip breaker 12 to keep away the top of a stopper slot 32, make check plate 1 apart from stopper slot 32
Axis is closer to so as to increase the axial movement of the limitation Lift crowbar 3 more reliable with the contact area of stopper slot 32 of check plate 1, together
When can reduce the depth of stopper slot 32, mitigate stress concentration.
It is described above, only it is preferred embodiment of the present utility model, any formal limit is not done to the utility model
System, every any simple modification made according to the technical essence of the utility model to above example, equivalent variations, each falls within
Within the scope of protection of the utility model.
Claims (8)
1. a kind of novel self-lock Lift crowbar, including check plate（1）And Lift crowbar（3）, it is characterised in that：
The Lift crowbar（3）One end is the inserted terminal of lifting part（31）, Lift crowbar（3）The other end be connection lifting appliance
Lift by crane end（33）, inserted terminal（31）With lifting by crane end（33）Between be provided with stopper slot（32）；
The check plate（1）One end has the hinged end with being hinged by lifting part, check plate（1）The other end have with being risen
The fixed connection end that part is fixedly connected is hung, hinged end and fixed connection end are located at Lift crowbar（3）Both sides, check plate（1）Around
Hinged end is hinged center and is transferred to stopper slot（32）It is interior, realize Lift crowbar（3）Locking.
A kind of 2. novel self-lock Lift crowbar according to claim 1, it is characterised in that the check plate（1）Hinged end
Attachment screw is equipped with fixed connection end（2）.
A kind of 3. novel self-lock Lift crowbar according to claim 1, it is characterised in that the stopper slot（32）For annular
Groove.
A kind of 4. novel self-lock Lift crowbar according to claim 2, it is characterised in that the check plate（1）It is fixedly connected
The corresponding attachment screw in end（2）Provided with U-lag（11）.
A kind of 5. novel self-lock Lift crowbar according to claim 2, it is characterised in that the check plate（1）It is horizontally disposed
And check plate（1）Hinged end and Gu Ding connection ends correspond to attachment screw（2）It is equipped with U-lag（11）.
A kind of 6. novel self-lock Lift crowbar according to claim 2, it is characterised in that the attachment screw（2）One end is
The end of thread of hanging object is connected（21）, attachment screw（2）The other end be stub end（23）；The end of thread（21）With stub end（23）
Between be provided with step（22）, step（22）Diameter be more than the end of thread（21）Diameter and be less than stub end（23）Diameter.
A kind of 7. novel self-lock Lift crowbar according to claim 3, it is characterised in that the stopper slot（32）Depth it is small
In inserted terminal（31）The a quarter of diameter.
A kind of 8. novel self-lock Lift crowbar according to claim 3, it is characterised in that the check plate（1）Middle part is provided with
With stopper slot（32）The deep-slotted chip breaker of matching（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720740570.3U CN206915562U (en) | 2017-06-23 | 2017-06-23 | A kind of novel self-lock Lift crowbar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720740570.3U CN206915562U (en) | 2017-06-23 | 2017-06-23 | A kind of novel self-lock Lift crowbar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206915562U true CN206915562U (en) | 2018-01-23 |
Family
ID=61321350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720740570.3U Expired - Fee Related CN206915562U (en) | 2017-06-23 | 2017-06-23 | A kind of novel self-lock Lift crowbar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206915562U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109502472A (en) * | 2019-01-16 | 2019-03-22 | 广西玉柴机器股份有限公司 | A kind of suspender lifting cylinder block |
-
2017
- 2017-06-23 CN CN201720740570.3U patent/CN206915562U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109502472A (en) * | 2019-01-16 | 2019-03-22 | 广西玉柴机器股份有限公司 | A kind of suspender lifting cylinder block |
| CN109502472B (en) * | 2019-01-16 | 2023-10-27 | 广西玉柴机器股份有限公司 | Lifting appliance for lifting cylinder block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180123 Termination date: 20210623 |