CN210658491U - Automatic bolt device of front loader hanging frame - Google Patents
Automatic bolt device of front loader hanging frame Download PDFInfo
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- CN210658491U CN210658491U CN201921150098.3U CN201921150098U CN210658491U CN 210658491 U CN210658491 U CN 210658491U CN 201921150098 U CN201921150098 U CN 201921150098U CN 210658491 U CN210658491 U CN 210658491U
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Abstract
The utility model discloses an automatic bolt device of preceding loader articulate frame, it has solved among the prior art preceding loader change and has assisted the utensil process complicated, has the problem that wastes time and energy, has the beneficial effect that the utensil was changed to convenient assistance, and its scheme is as follows: an automatic bolt device of a front loader hanging frame comprises a hanging frame, a first transverse shaft and a second transverse shaft, wherein the first transverse shaft and the second transverse shaft are arranged up and down, two ends of the first transverse shaft and two ends of the second transverse shaft are connected through an outer fixing plate, an inner fixing plate is arranged on the inner side of the outer fixing plate at intervals, and an auxiliary tool hook can be arranged between the inner fixing plate and the outer fixing plate through the first transverse shaft; clutch handle, including handle and long round pin axle, handle one side is longer than the opposite side setting, and the longer one side of handle is connected with long round pin axle, and the shorter one side central line of handle can be located same straight line with long round pin axle the central axis, has the settlement distance between the shorter one side of handle and the long round pin axle tip, and long round pin axle and handle can support through the bridging frame.
Description
Technical Field
The utility model relates to an operation vehicle field such as tractor especially relates to an automatic bolt device of preceding loader articulate frame.
Background
In recent years, with the improvement of the production level of matched machines and tools of tractors, the technology of front loaders is mature day by day, and the application range is wider and wider. Through changing corresponding assistive device, multiple operations such as loading and unloading goods, press from both sides and get the bale, carry the tray can be accomplished to the front loader, satisfies different functional requirements. The existing front loader product is mainly connected with a hanging frame by adopting a mode of a hook and a pin shaft. The auxiliary tool is replaced, the pin shaft is required to be firstly pulled out of the lower lifting lug of the auxiliary tool by an operator, then the auxiliary tool is replaced by operating the front loader, and the pin shaft is inserted into the lower lifting lug and locked after the replacement is finished. The inventor finds that the manual pin pulling and pin plugging mode requires operators to get on and off the vehicle twice, wastes time and labor, is extremely inconvenient to operate, and seriously affects the performance of quick, simple and convenient hooking of products.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model provides an automatic bolt device of preceding loader joint frame can realize assisting under the utensil lug and the automatic locking of joint frame round pin axle, has reduced operating procedure, and it is very simple and convenient to operate, has saved the time, has promoted product property ability.
The specific scheme of the automatic bolt device of the front loader hanging frame is as follows:
an automatic latch device of a front loader hitch frame, comprising:
the hanging frame comprises a first transverse shaft and a second transverse shaft, the first transverse shaft and the second transverse shaft are arranged up and down, two ends of the first transverse shaft and two ends of the second transverse shaft are connected through an outer fixing plate, inner fixing plates are arranged on the inner sides of the outer fixing plates at intervals, and auxiliary tool hooks can be supported between the inner fixing plates and the outer fixing plates through the first transverse shaft;
clutch handle, including handle and long round pin axle, handle one side is longer than the opposite side setting, and the longer one side of handle is connected with long round pin axle, and the shorter one side central line of handle can be located same straight line with long round pin axle the central axis, has the settlement distance between the shorter one side of handle and the long round pin axle tip, and long round pin axle and handle can support through the bridging frame, and clutch handle can realize removing for the bridging frame, and handle and long round pin axle can pass under the assistive device lug setting.
Furthermore, a limiting block is arranged between the outer fixing plate on one side and the inner fixing plate on the corresponding side of the first transverse shaft to limit the auxiliary tool hook.
Further, the stopper is including locating the stopper I of outer fixed plate tip, locate the inboard stopper II of outer fixed plate and locate the stopper III of inner fixed plate one side, wherein stopper I and stopper II mutually perpendicular set up, and the first cross axle setting of stopper III laminating, stopper I and stopper III interval set distance set up in order to be convenient for set up between the two and assist the utensil couple.
Furthermore, the outer fixing plate and the inner fixing plate are both provided with first openings for the first pin shafts to penetrate through, the first pin shafts can realize connection of the hanging frame and the front loader, and the first pin shafts are supported at the first openings through first shaft sleeves;
the shorter side of the handle penetrates through the outer fixing plate and the inner fixing plate;
the outer fixing plate and the inner fixing plate are both provided with oblong holes, and the longer side of the handle penetrates through the oblong holes.
In addition, the outer fixing plate and the inner fixing plate are consistent in shape and are approximately triangular, and one side surfaces of the outer fixing plate and the inner fixing plate are concave inwards and are used for being matched with the assistive device in shape.
Further, a handle limiting block is arranged on the longer side of the handle and is arranged below the longer side of the handle, when the handle is pulled out relative to the hanging frame, the handle limiting block is used for limiting the movement of the handle, a handle limiting plate is arranged on the shorter side of the handle and is arranged on the outer side of the outer fixing plate, the handle limiting plate is perpendicular to the shorter side of the handle, and the handle limiting plate is used for limiting after the handle is clamped into the hanging frame;
the handle limiting block is arranged on the inner side of the handle limiting plate in the vertical direction, and in a normal state, the handle limiting block is arranged between the outer fixing plate and the outer fixing plate on one side of the hanging frame, so that after the handle is pulled out of the hanging frame, the handle limiting block is used for limiting.
The handle is U type handle, and the longer one side of handle is buckled and is set up, long round pin axle is equipped with first elastic pin, the tip of the longer one side of handle sets up the handle connecting plate, the handle connecting plate carries on spacingly through first elastic pin, and long round pin axle is close to the shorter one side of handle and is equipped with the spring, the spring housing sets up in long round pin axle, the return of the separation and reunion handle of being convenient for, the handle connecting plate is equipped with the through-hole and is used for passing of long round pin axle, long round pin axle is equipped with the elastic pin mounting hole, two first elastic pins are located the both sides of handle connecting plate and are carried on spacingly to the handle connecting plate, long round pin axle spring one side is spacing through the second elastic pin, spring opposite side.
Furthermore, rectangular steel is connected below the first transverse shaft, reinforcing plates are arranged on two sides of the rectangular steel, and the reinforcing plates are arranged on the inner side, opposite to the outer fixing plate, of the inner fixing plate.
Furthermore, the second cross shaft is provided with a supporting plate perpendicular to the second cross shaft, two supporting plates are arranged on one side of the second cross shaft, and a set space is arranged between the two supporting plates on one side of the second cross shaft and used for arranging an auxiliary lower lifting lug; the auxiliary tool lower lifting lug connecting hole can realize the penetration of the handle and the long pin shaft, and the width of the auxiliary tool lower lifting lug is smaller than the distance between the two supporting plates on one side; the side part of the supporting plate is provided with a connecting plate, and the connecting plate is connected with the inner fixing plate and a reinforcing plate on one side of the rectangular steel;
the backup pad is opened to be used for the second trompil that long round pin axle or handle passed, and second trompil department sets up the secondary shaft cover, and to hanging two backup pads of connecing frame one side, the secondary shaft cover that is close to the backup pad of inner fixed plate is short axle sleeve, and another secondary shaft cover is the major axis cover, hangs the long axle sleeve and the short axle sleeve of connecing frame one side and is used for supporting the one end that long round pin axle kept away from the handle, and the short axle sleeve of opposite side is used for supporting the handle, and the major axis cover can be convenient for insert.
Further, the hanging frame is symmetrically arranged relative to the longitudinal section of the first transverse shaft.
Further, be equipped with the limiting plate between outer fixed plate and the interior fixed plate in order to restrict the rotation of bridging frame, the limiting plate has two, and two limiting plates all with outer fixed plate, outer fixed plate mutually perpendicular, limiting plate IV locate the lateral part of bridging frame, are close to the swing arm setting, and limiting plate V locates the bottom of bridging frame, and when the bridging frame is rotatory to the highest position, limiting plate IV plays limiting displacement with the swing arm contact, and when the bridging frame is rotatory to the lowest position, limiting plate V plays limiting displacement with the swing arm contact.
A use method of an automatic bolt device of a front loader hanging frame comprises the following steps:
when the auxiliary tool of the front loader is replaced, an operator operates the front loader to rotate the hanging frame upwards to a proper position, the worker manually pulls out the clutch handle from the lower lifting lug of the auxiliary tool, then rotates the hanging frame downwards until the lower lifting lug of the auxiliary tool is separated from the hanging frame, then moves the hanging frame downwards to the ground where the auxiliary tool is safely placed, continues to move the hanging frame downwards to separate the hook of the auxiliary tool from the first transverse shaft of the hanging frame, and finishes the disassembly of the auxiliary tool;
and (3) mounting the auxiliary tool, namely firstly hooking the first cross shaft of the hanging frame with the hook of the auxiliary tool, then moving the hanging frame upwards to separate the auxiliary tool from the ground, then upwards rotating the hanging frame, aligning the connecting hole of the lower lifting lug of the auxiliary tool with the long pin shaft of the clutch handle, continuously upwards rotating the hanging frame, rotating the handle around the center of the long pin shaft under the limiting action of the movable arm, resetting the clutch handle, and finishing mounting the auxiliary tool.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the utility model discloses an overall structure's setting is changed when assisting the utensil, only needs to extract the round pin axle, assists the utensil and changes and finish, and round pin axle self return locking has effectively reduced operating procedure, and it is very simple and convenient to operate, has saved the time, has promoted product property ability.
2) The utility model discloses an overall structure's setting, compact structure, it is with low costs, job stabilization nature is good, and the flexible operation is convenient, has reduced the operating procedure, has improved work efficiency.
3) The utility model discloses a setting of bridging frame can effectively support the separation and reunion handle to be convenient for separation and reunion handle for the translation and the rotation of bridging frame.
4) The utility model discloses a setting of handle, the block of not only convenient and long round pin axle is convenient for moreover to the manipulation of handle.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
FIG. 1 is a schematic front view of the overall structure in the embodiment of the present invention;
FIG. 2 is a schematic front view of the clutch handle in the embodiment of the present invention;
fig. 3 is a schematic view of a locking structure of a long pin shaft in the embodiment of the present invention;
fig. 4 is a schematic structural view of a long pin shaft pulling-out position in the embodiment of the present invention;
FIG. 5 is a schematic view of the movement of the clutch handle in the embodiment of the present invention;
fig. 6 is an enlarged view of a part of the structure in fig. 5 according to the embodiment of the present invention;
fig. 7 is a perspective view of the overall structure in the embodiment of the present invention;
the novel hydraulic lifting device comprises a base, a handle limiting plate, a handle connecting plate, a clutch handle, a handle limiting plate, a handle connecting plate, a spring, a retainer ring, a second elastic pin, a hook, an auxiliary tool hook, a lower lifting lug, a bent plate and a movable arm, wherein the base comprises an upper transverse shaft 1, a lower transverse shaft 2, an outer fixing plate 3, a left inner fixing plate 4, a right inner fixing plate 5, a limiting block I6, a limiting block II, a limiting block III, a rectangular steel 9, an outer shaft sleeve 10, an inner shaft sleeve 11, a limiting plate IV, a limiting plate V, a front rib plate 14, a rear rib plate 15, a supporting plate 16, a connecting plate 17, a connecting plate 18, a short shaft sleeve 19, a long shaft sleeve 19, a clutch handle 20-1, a handle 20-2, a long pin shaft.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. 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 invention 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 in accordance with the invention. 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.
Just as the background art introduces, exist not enough among the prior art, in order to solve above technical problem, the utility model provides a preceding loader mount frame automatic bolt device, below combine the description figure, right the utility model discloses do further explanation.
In a typical embodiment of the present invention, as shown in fig. 1 and 7, an automatic latch device for a front loader attachment frame includes an attachment frame, the attachment frame includes two first and second horizontal shafts arranged in parallel, the two horizontal shafts are arranged up and down, i.e., an upper horizontal shaft 1 and a lower horizontal shaft 2, a rectangular steel 9 is connected below the upper horizontal shaft 1, an outer fixing plate 3, an inner fixing plate and a stopper are respectively fixed at two ends of the upper horizontal shaft 1 and the lower horizontal shaft 2, a left inner fixing plate 4 is arranged inside the outer fixing plate 3 at one side, a right inner fixing plate 5 is arranged inside the outer fixing plate at the other side, a stopper I6 and a stopper II7 are arranged between the outer fixing plate 3 and the upper horizontal shaft 1, the two stoppers are perpendicular to each other, a stopper III8 is respectively arranged inside the upper horizontal shaft 1 relative to the left inner fixing plate 4 or the right inner fixing plate 5, an auxiliary hook 21 can be arranged between the upper horizontal shaft I6 and the stopper III8, through the setting of stopper I6, stopper II7 and stopper III8, limit the assistive device couple 21 of locating last cross axle 1 through the three, avoid the left and right slip of assistive device couple 21.
The first pin shaft comprises an upper pin shaft and a lower pin shaft, an outer shaft sleeve 10 is arranged on an outer fixing plate 3, an inner shaft sleeve 11 is arranged on a left inner fixing plate 4 and a right inner fixing plate 5, an upper pin shaft is arranged through the upper outer shaft sleeve 10 and the inner shaft sleeve 11 on the upper side to realize the connection of the hanging frame and a front loader bent plate 23, a lower pin shaft is arranged through the lower outer shaft sleeve 10 and the inner shaft sleeve 11 to realize the connection of the hanging frame and a front loader movable arm 24, the rotation of the hanging frame is controlled by a front loader, a limit plate IV12 and a limit plate V13 are connected between the outer fixing plate 3 and the left inner fixing plate 4, the limit plate IV12 and the limit plate V13 are parallel to each other and are arranged at a set distance, the rotation angle of the hanging frame is limited through the limit plate IV12 and the limit plate V13, a limit plate IV12 and a limit plate V13 are also connected between the outer fixing plate 3 and the, The rear rib plates 15, the front rib plates 14 and the rear rib plates 15 are arranged on two sides of the rectangular steel 9, extension lines of the front rib plates 14 and the rear rib plates 15 form an acute angle, and the two rib plates are connected with the upper transverse shaft 1 and the left inner fixing plate 4.
Two supporting plates 16 are respectively connected to two sides of the lower cross shaft 2, the supporting plates 16 are perpendicular to the lower cross shaft 2, the supporting plates 16 are connected with the left inner fixing plate 4 (the right inner fixing plate 5) through connecting plates 17, the connecting plates 17 are connected with the rear rib plates 15, the connecting plates 17 are arranged on the side portions of the rear rib plates 15, short shaft sleeves 18 are arranged on the supporting plates close to the left inner fixing plate 4 or the right inner fixing plate 5, long shaft sleeves 19 are arranged on the other supporting plate, the long shaft sleeves and the short shaft sleeves on one side of the hanging and connecting frame are used for supporting one ends, far away from the handle 20-1, of the long pin shafts 20-2, the short shaft sleeves on the.
Wherein, outer fixed plate 3 is unanimous with left inner fixed plate, right inner fixed plate shape, all is nearly triangle-shaped, and outer fixed plate 3 and left inner fixed plate, a side indent of right inner fixed plate be used for with assist utensil shape fit, the shorter one side of handle is close to the indent side and sets up, and down cross axle 2 and interior axle sleeve 11 are located the both sides of outer fixed plate or two inner fixed plate bottoms respectively.
As shown in figure 2, the clutch handle 20 comprises a handle 20-1, the handle 20-1 is U-shaped, one side of the handle 20-1 is longer than the other side, the longer side is bent, a handle connecting plate 20-6 is arranged at the end part of the longer side of the handle 20-1, the handle connecting plate 20-6 is provided with a through hole, a long pin shaft 20-2 passes through the through hole and is positioned by two first elastic pins 20-3 (arranged at the two sides of the handle connecting plate 20-6) arranged on the long pin shaft 20-2, the handle 20-1 is provided with a handle limiting block 20-4 and a handle limiting plate 20-5, the handle limiting block 20-4 is arranged at the long side of the handle 20-1, the handle limiting plate 20-5 is arranged at the other side of the handle and is used for limiting the position of the handle arranged, the side of the long pin shaft 20-2 close to the short side of the handle is sleeved with a spring 20-7, one end of the spring 20-7 is positioned through a retainer ring 20-8 arranged on the long pin shaft 20-2 and a second elastic pin 20-9, the other end of the spring 20-7 is a free end, and the spring 20-7 is compressed after being inserted into the long shaft sleeve.
The shorter side of the handle penetrates through the outer fixing plate 3 and the inner fixing plate 4, so that the handle can be conveniently pulled out or put into the hanging frame; the outer fixing plate 3 and the inner fixing plate 4 are both provided with long round holes, and the longer side of the handle penetrates through the long round holes, so that the handle can move upwards and downwards in the long round holes conveniently.
When the clutch handle 20 is arranged on the hanging frame, one end of the long pin shaft 20-2 can be supported by the short shaft sleeve 18 and the long shaft sleeve 19 of the hanging frame support plate 16, the short side of the handle 20-1 can be inserted into the short shaft sleeve 18 and the long shaft sleeve 19 of the support plate 16, so that the short side of the handle 20-1 and the long pin shaft 20-2 are inserted into the auxiliary lower lifting lug 22, as shown in fig. 3, the clutch handle is in a locking state, and the other end of the long pin shaft is a set distance away from the long shaft sleeve 18 of the support plate on one side.
When the auxiliary tool of the front loader is replaced, an operator operates the front loader to rotate the hanging frame upwards to a proper position, the operator manually pulls out the clutch handle from the lower lifting lug 22 of the auxiliary tool, the long pin shaft moves forwards under the action of external force, one end of the long pin shaft is inserted into the long shaft sleeve 19 of the supporting plate 16 at the moment, the spring is compressed, the handle limiting block 20-4 is positioned below the handle and can be arranged outside the long circular hole, the handle limiting block 20-4 is used for locking, the hanging frame is rotated downwards through operating the movable arm 24 until the lower lifting lug 22 of the auxiliary tool is separated from the hanging frame, then the hanging frame is moved downwards to the ground where the auxiliary tool is safely placed, the hanging frame is moved downwards continuously to separate the hanging frame hook 21 of the auxiliary tool from the upper transverse shaft 1 of the hanging frame, and the disassembly of the auxiliary;
mounting the auxiliary tool, firstly, hanging the upper cross shaft 1 of the hanging frame with a hook 21 of the auxiliary tool by operating the front loader, then moving the hanging frame upwards to separate the auxiliary tool from the ground, operating the movable arm 24 to rotate the hanging frame upwards, aligning a connecting hole of a lower lifting lug 22 of the auxiliary tool with a long pin shaft 20-2 of a clutch handle, and continuously rotating the hanging frame, wherein as shown in figures 5 and 6, the handle 20 rotates around the center of the long pin shaft under the limiting action of the movable arm 24, the longer side of the handle is gradually lifted in the rotating process until a handle limiting block 20-4 loses action, the handle is quickly reset under the action of a spring, and the auxiliary tool is mounted completely.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an automatic bolt device of preceding loader linking frame which characterized in that includes:
the hanging frame comprises a first transverse shaft and a second transverse shaft, the first transverse shaft and the second transverse shaft are arranged up and down, two ends of the first transverse shaft and two ends of the second transverse shaft are connected through an outer fixing plate, inner fixing plates are arranged on the inner sides of the outer fixing plates at intervals, and auxiliary tool hooks can be supported between the inner fixing plates and the outer fixing plates through the first transverse shaft;
clutch handle, including handle and long round pin axle, handle one side is longer than the opposite side setting, and the longer one side of handle is connected with long round pin axle, and the shorter one side central line of handle can be located same straight line with long round pin axle the central axis, has the settlement distance between the shorter one side of handle and the long round pin axle tip, and long round pin axle and handle can support through the bridging frame, and clutch handle can realize removing for the bridging frame, and handle and long round pin axle can pass under the assistive device lug setting.
2. The automatic latch device for front loader attachment frame according to claim 1, wherein the first lateral shaft has a stopper between the outer fixing plate on one side and the inner fixing plate on the corresponding side to limit the auxiliary hook.
3. The automatic bolt device of the front loader hanging frame according to claim 2, wherein the limiting blocks comprise a limiting block I arranged at the end of the outer fixing plate, a limiting block II arranged at the inner side of the outer fixing plate and a limiting block III arranged at one side of the inner fixing plate, and the limiting block I and the limiting block II are arranged perpendicular to each other.
4. The automatic bolt device of the front loader hanging frame according to claim 1, wherein the outer fixing plate and the inner fixing plate are both provided with a first opening for a first pin shaft to pass through, and the first pin shaft can realize connection of the hanging frame and the front loader;
the shorter side of the handle penetrates through the outer fixing plate and the inner fixing plate;
the outer fixing plate and the inner fixing plate are both provided with oblong holes, and the longer side of the handle penetrates through the oblong holes.
5. The automatic bolt device of the front loader hanging frame according to claim 1, wherein a handle limiting block is arranged on the longer side of the handle, a handle limiting plate is arranged on the shorter side of the handle, the handle limiting plate is arranged on the outer side of the outer fixing plate, and the handle limiting plate is arranged perpendicular to the shorter side of the handle;
the handle limiting block is arranged on the inner side of the handle limiting plate.
6. The automatic latch device for the front loader hanging frame according to claim 1, wherein the handle is a U-shaped handle, the handle is bent at one side of the longer side of the handle, the long pin shaft is provided with a first elastic pin, the end of the longer side of the handle is provided with a handle connecting plate, the handle connecting plate is limited by the first elastic pin, and the long pin shaft is provided with a spring at the side close to the shorter side of the handle.
7. The automatic bolt device of the front loader hanging frame according to claim 1, characterized in that the second cross shaft is provided with a support plate perpendicular to the second cross shaft, and two support plates are arranged on one side of the second cross shaft, and a set space is arranged between the two support plates on one side of the second cross shaft for arranging an auxiliary lower lifting lug;
the supporting plate is provided with a second opening for the long pin shaft or the handle to pass through.
8. The automatic bolt device of the front loader hanging frame according to claim 1, wherein a rectangular steel is connected below the first cross shaft, and reinforcing plates are arranged on two sides of the rectangular steel and arranged on the inner side, opposite to the outer fixing plate, of the inner fixing plate.
9. The automatic latch device for front loader docking frames according to claim 1, wherein a limiting plate is disposed between the outer fixing plate and the inner fixing plate to limit the rotation of the docking frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921150098.3U CN210658491U (en) | 2019-07-19 | 2019-07-19 | Automatic bolt device of front loader hanging frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921150098.3U CN210658491U (en) | 2019-07-19 | 2019-07-19 | Automatic bolt device of front loader hanging frame |
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| Publication Number | Publication Date |
|---|---|
| CN210658491U true CN210658491U (en) | 2020-06-02 |
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ID=70840761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921150098.3U Active CN210658491U (en) | 2019-07-19 | 2019-07-19 | Automatic bolt device of front loader hanging frame |
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| CN (1) | CN210658491U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453739A (en) * | 2019-07-19 | 2019-11-15 | 山东省农业机械科学研究院 | A kind of frontloader connecting frame automatic pinning device and method |
-
2019
- 2019-07-19 CN CN201921150098.3U patent/CN210658491U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453739A (en) * | 2019-07-19 | 2019-11-15 | 山东省农业机械科学研究院 | A kind of frontloader connecting frame automatic pinning device and method |
| CN110453739B (en) * | 2019-07-19 | 2024-02-20 | 山东省农业机械科学研究院 | Automatic bolt device and method for front loader hanging frame |
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