CN210737669U - Locking device for movable arm of loader - Google Patents
Locking device for movable arm of loader Download PDFInfo
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- CN210737669U CN210737669U CN201921551827.6U CN201921551827U CN210737669U CN 210737669 U CN210737669 U CN 210737669U CN 201921551827 U CN201921551827 U CN 201921551827U CN 210737669 U CN210737669 U CN 210737669U
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Abstract
The utility model relates to a loader swing arm locking device, including the U template, the U template includes first flat board and sets up the second flat board in first flat board both sides portion, the both ends of U template are fixed with the backup pad, the backup pad seted up with swing arm hydro-cylinder piston rod assorted first opening, U template and backup pad can pass the backing pin through first opening lock joint on the piston rod of swing arm hydro-cylinder, can pass the backing pin between two second flat boards, the backing pin can prevent to drop on the piston rod of U template and backup pad slave arm hydro-cylinder, the one end of U template is fixed with the board of bending, the board of bending can articulate the ears ring of swing arm hydro-cylinder piston rod tip, the utility model discloses a locking device can effectively guarantee the lift state of loader, has avoided the injury to the staff.
Description
Technical Field
The utility model relates to a loader auxiliary assembly technical field, concretely relates to loader swing arm locking means.
Background
When a loader is maintained at an exhibition or a frame, a link mechanism of the loader needs to be lifted to the highest position and needs to be kept at the attitude for a long time, but the hydraulic valve can be decompressed when being in one state for a long time, so that a movable arm falls, and serious potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, provide a loader swing arm locking means, simple structure, convenient to use can effectively avoid the hydrovalve pressure release, and the swing arm whereabouts that cause injures personnel's potential safety hazard by a crashing object.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a loader swing arm locking device, including the U template, the U template includes first flat board and sets up the second flat board in first flat board both sides portion, the both ends of U template are fixed with the backup pad, the backup pad seted up with swing arm hydro-cylinder piston rod assorted first opening, U template and backup pad can pass first opening lock joint on the piston rod of swing arm hydro-cylinder, can pass the backing pin between two second flat boards, the backing pin can prevent to drop on the piston rod of U template and backup pad driven arm hydro-cylinder, the one end of U template is fixed with the board of bending, the board of bending can articulate the both ears ring of swing arm hydro-cylinder piston rod tip.
Further, the first opening comprises a first opening portion and a second opening portion, the first opening portion is in a semicircular shape matched with the piston rod of the movable arm cylinder, and the second opening portion is in a rectangular shape.
Furthermore, a reinforcing plate is arranged inside the U-shaped plate, the reinforcing plate is fixedly connected with the first flat plate and the two second flat plates, a second opening is formed in the reinforcing plate, and the second opening is a semicircular opening matched with a piston rod of the movable arm oil cylinder.
Furthermore, a shock pad is fixed on the inner opening surface of the first opening.
Furthermore, one side part of the second flat plate is connected with the first flat plate, the other side part of the second flat plate is provided with an ear plate, and the ear plate is provided with a pin hole for the stop pin to pass through.
Furthermore, the periphery of the stop pin is sleeved with a spacer bush.
Furthermore, a handrail is fixed on the outer side surface of the first flat plate.
Furthermore, a second flat plate is provided with a fixing plate, a fixing screw is fixed on the fixing plate, and the second flat plate can be fixedly connected with a frame of the loader through the fixing screw.
The utility model also discloses a use method of loader movable arm locking means: the method comprises the steps that a U-shaped plate and a supporting plate are buckled on a piston rod of a movable arm oil cylinder of the loader in a lifting state, a bending plate at one end of the U-shaped plate is hung on a double-lug ring at the end part of the piston rod of the movable arm oil cylinder, a supporting plate at the other end of the U-shaped plate is in contact with the end face of a cylinder body of the movable arm oil cylinder, a stop pin penetrates between two second flat plates, and under the action of the U-shaped plate and the supporting plate, the piston rod of the movable arm oil cylinder cannot shrink.
Furthermore, the end part of the stop pin penetrates through the opening pin to prevent the stop pin from falling off the second flat plate.
The utility model has the advantages that:
1. the utility model discloses a locking instrument, when the loader is in the state of lifting, can the lock joint on the piston rod of movable arm hydro-cylinder to the cylinder body end face contact of one end and movable arm hydro-cylinder, the other end articulates piston end connection's ears with the board of bending, can avoid movable arm hydro-cylinder piston rod because the shrink motion that the pressure release leads to, thereby lock the state of lifting of movable arm, avoided the whereabouts of movable arm, avoided the risk of injuring personnel by a crashing object.
2. The utility model discloses a locking instrument, first opening internal orifice face are fixed with the shock pad, and backing pin periphery cover has the spacer, can cushion backup pad, backing pin to the collision of movable arm hydro-cylinder piston rod, can effectively avoid the damage to the movable arm hydro-cylinder
3. The utility model discloses a locking instrument can fix on the frame through clamping screw, convenient next taking.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
fig. 2 is a schematic front view of the overall structure of embodiment 1 of the present invention;
FIG. 3 is a schematic view of the embodiment of FIG. 2;
fig. 4 is a schematic top view of the overall structure of embodiment 1 of the present invention;
fig. 5 is an assembly schematic diagram of embodiment 1 of the present invention and a boom cylinder;
fig. 6 is a schematic view of the use principle of embodiment 2 of the present invention;
the automobile frame comprises a first flat plate 1, a second flat plate 2, a supporting plate 3, a first opening 4, a second opening 5, a shock absorption pad 6, an ear plate 7, a stop pin 8, a bending plate 9, a fixing plate 10, a screw rod 11, a handrail 12, a reinforcing plate 13, a second opening 14, a spacer sleeve 15, a split pin 16, a double-ear ring 17, a movable arm oil cylinder 18 and a frame 19.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
For convenience of description, the words "upper", "lower", "left" and "right" in the present application, if any, merely indicate correspondence with the upper, lower, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the present invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
As described in the background art, when a loader is maintained at an exhibition or a frame, a link mechanism of the loader needs to be lifted to the highest position and kept in the attitude for a long time, but when a hydraulic valve is in one state for a long time, pressure relief occurs, so that a movable arm falls, and a serious potential safety hazard exists.
In an exemplary embodiment of the present application, as shown in fig. 1 to 4, a locking device for a loader boom comprises a U-shaped plate, wherein the U-shaped plate comprises a first plate 1 and a second plate 2 integrally fixed at two side edges of the first plate, two ends of the U-shaped plate are welded and fixed with a supporting plate 3, a first opening is arranged on the supporting plate, and the U-shaped plate and the supporting plate can be fastened on a piston rod of a loader boom cylinder through the first opening.
The first opening comprises a first opening part 4 and a second opening part 5, the first opening part is in a semicircular shape matched with a piston rod of the movable arm oil cylinder, the second opening part is in a rectangular shape, the piston rod of the movable arm oil cylinder can penetrate through the second opening part and is in contact with the inner side opening surface of the first opening part, and the U-shaped plate and the supporting plate are buckled on the piston rod of the movable arm oil cylinder.
Be fixed with shock pad 6 on the inboard oral area of first open-ended, the shock pad adopts the nitrile rubber material to make, can prevent the damage to the piston rod when the backup pad lock joint is on swing arm hydro-cylinder piston rod.
And a reinforcing plate 13 is fixed inside the U-shaped plate, the reinforcing plate is welded and fixed with the inner side surfaces of the first flat plate and the two second flat plates, a second opening 14 matched with a piston rod of the movable arm oil cylinder is arranged on the reinforcing plate, and the second opening is a semicircular opening.
One side part of each second flat plate is fixedly connected with the first flat plate in an integrated mode, the other side part of each second flat plate is provided with an ear plate 7, pin holes are formed in the ear plates, stop pins 8 can penetrate through the pin holes of the two second flat plates, and a spacer sleeve 15 is sleeved on the periphery of each stop pin and is made of a cloth-sandwiched rubber tube and used for preventing the stop pins from damaging a piston rod of a movable arm oil cylinder.
The utility model discloses a locking device, including the connecting plate, the connecting plate is fixed on the movable arm hydro-cylinder, the backup pad terminal surface of U template one end can with the end face contact of the cylinder body of movable arm hydro-cylinder, other end welded fastening has the board of bending 9, the board of bending is for having the board of setting for the angle of bending, can articulate on movable arm hydro-cylinder piston rod end fixing's ears ring 17, conveniently judges whole locking device's installation direction, the ears ring is the current structure of loader, including a connecting plate and two connection otic placodes of setting on the connecting plate, has the connecting hole on the connection otic plac.
A handrail 12 is fixedly welded on the outer side surface of the first flat plate, and a worker can buckle the U-shaped plate and the supporting plate on a piston rod of the movable arm oil cylinder through the handrail.
Two fixing plates 10 are fixed on the outer side face of the second flat plate on one side, a screw rod 11 is fixed on each fixing plate, and the U-shaped plate can be fixedly connected with a frame 19 of the loader through the screw rods and bolts to be convenient to take next time.
Example 2:
the embodiment discloses a use method of a locking tool of a loader movable arm, which comprises the following steps: as shown in fig. 5-6, a U-shaped plate and a supporting plate are fastened to a piston rod of a boom cylinder of a loader in a lifting state (the piston rod of the boom cylinder is in an extended state), a bending plate at one end of the U-shaped plate is hung on a lug ring at the end of the piston rod of the boom cylinder, a supporting plate at the other end of the U-shaped plate is in contact with the end surface of a cylinder body of a boom cylinder 18, a stop pin penetrates between two second plates, an open pin 16 penetrates through the end of the stop pin, and the piston rod of the boom cylinder cannot be retracted under the action of the U-shaped plate and the supporting plate to lock the lifting state of the loader, so that injury to workers due to boom descending caused by pressure relief is avoided.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (8)
1. The utility model provides a loader swing arm locking device, a serial communication port, including the U template, the U template includes first flat board and sets up the second flat board in first flat board both sides portion, the both ends of U template are fixed with the backup pad, the backup pad seted up with swing arm hydro-cylinder piston rod assorted first opening, U template and backup pad can pass first opening lock joint on the piston rod of swing arm hydro-cylinder, can pass the backing pin between two second flat boards, the backing pin can prevent to drop on the piston rod of U template and backup pad driven arm hydro-cylinder, the one end of U template is fixed with the board of bending, the board of bending can articulate the both ears ring of swing arm hydro-cylinder piston rod tip.
2. The loader arm lock as set forth in claim 1, wherein said first opening comprises a first opening portion and a second opening portion, said first opening portion being shaped like a semicircle matching the boom cylinder piston rod, said second opening portion being shaped like a rectangle.
3. The locking device for the movable arm of the loader as claimed in claim 1, wherein a reinforcing plate is arranged inside the U-shaped plate, the reinforcing plate is fixedly connected with the first plate and the two second plates, and the reinforcing plate is provided with a second opening which is a semicircular opening matched with the piston rod of the movable arm cylinder.
4. The locking device for the arm of a loader of claim 1, wherein a shock absorbing pad is fixed to the inner opening surface of the first opening.
5. The locking device for a loader arm according to claim 1, wherein the second plate is connected to the first plate at one side portion thereof and provided with an ear plate at the other side portion thereof, the ear plate being provided with a pin hole for passing the catch pin therethrough.
6. The locking device for a loader arm as claimed in claim 1, wherein said stop pin is peripherally sleeved with a spacer.
7. The locking device for a loader arm as claimed in claim 1, wherein a handrail is fixed to the outer side surface of said first plate.
8. The locking device for the loading arm of claim 1, wherein a second plate is provided with a fixing plate, the fixing plate is fixed with a fixing screw, and the second plate can be fixedly connected with the frame of the loader through the fixing screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921551827.6U CN210737669U (en) | 2019-09-17 | 2019-09-17 | Locking device for movable arm of loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921551827.6U CN210737669U (en) | 2019-09-17 | 2019-09-17 | Locking device for movable arm of loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210737669U true CN210737669U (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921551827.6U Active CN210737669U (en) | 2019-09-17 | 2019-09-17 | Locking device for movable arm of loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210737669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607818A (en) * | 2019-09-17 | 2019-12-24 | 雷沃工程机械集团有限公司 | Locking device for movable arm of loader and using method |
-
2019
- 2019-09-17 CN CN201921551827.6U patent/CN210737669U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607818A (en) * | 2019-09-17 | 2019-12-24 | 雷沃工程机械集团有限公司 | Locking device for movable arm of loader and using method |
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Address after: 266500 No. 75 East Huanghe Road, Huangdao District, Qingdao City, Shandong Province Patentee after: Lovol Heavy Industry Group Co.,Ltd. Address before: 266500 No. 75 East Huanghe Road, Huangdao District, Qingdao City, Shandong Province Patentee before: LOVOL Engineering Machinery Group Co.,Ltd. |