CN103600627A - Unhooking device, concrete pipe pile vehicle and concrete pipe pile pumping and distributing system - Google Patents
Unhooking device, concrete pipe pile vehicle and concrete pipe pile pumping and distributing system Download PDFInfo
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- CN103600627A CN103600627A CN201310585633.9A CN201310585633A CN103600627A CN 103600627 A CN103600627 A CN 103600627A CN 201310585633 A CN201310585633 A CN 201310585633A CN 103600627 A CN103600627 A CN 103600627A
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Abstract
The invention provides an unhooking device, a concrete pipe pile vehicle and a concrete pipe pile pumping and distributing system. The unhooking device comprises a movable hook and a fixed hook, the movable hook comprises a downwards-arranged movable hook portion and is arranged on a first object in a manner of capable of being opened upwards, and the fixed hook comprises an upwards-arranged fixed hook portion matched with the movable hook portion and is fixedly arranged on a second object. The unhooking device can be opened upwards through the movable hook, the movable hook portion faces downwards, the fixed hook is fixedly arranged, and the fixed hook portion faces upwards. In the process when the movable hook is connected with the fixed hook, the movable hook automatically resets under the action of gravity, and the movable hook and the fixed hook are connected with each other. After the movable hook is connected with the fixed hook, the movable hook maintains a connection state to prevent unhooking under the action of gravity. Compared with the prior art, the unhooking device has the advantages that resetting force of the unhooking device is gravity, and the problems that a spring is in a failure and the like due to the fact that the resetting force is provided by a resetting spring in the prior art can be avoided, so that reliability is effectively improved.
Description
Technical field
The present invention relates to connecting device field, in particular to a kind of de-hooking device and concrete tubular pile car, concrete tubular pile pumping cloth system.
Background technology
In prior art, often have two objects and mutually depart from when a direction moves to a certain position together, initiatively object moves forward, and from animal body, stops; During reversing sense motion, at same position, realize the connection of two objects, and continue motion together.For example the supporting trolley of concrete tubular pile pumping cloth system comprises initiatively dolly and driven dolly, it in the course of the work, initiatively dolly is connected from initial homeposition and moves to desired location with driven dolly, and driven dolly is separated with active dolly in desired location, and initiatively dolly continues motion; During reversing sense motion, initiatively dolly is connected with driven dolly in desired location, and continues motion and get back to initial homeposition.In connection and separation process, traditional method employing, manually at active, driven dolly junction plug-in mounting connecting pin, is still adopted in this way, and labor strength is larger, and has larger potential safety hazard.In addition, in prior art, also have the electrical control of employing to realize, but cost is higher.
Chinese patent 201220197316.0 also discloses a kind of concrete tubular pile transport trolley automatic trip hooking device.But in this scheme, driven hook need to be by spring force when resetting, but cement concrete dolly working is severe, impact and folding frequent, so spring ratio is easier to inefficacy; In hook connecting termination process, driven hook needs all the time by spring force tensioning, otherwise driven hook falls automatically, and the two separation, that is to say, adopts the reliability of spring lower in this programme.
Summary of the invention
The present invention aims to provide a kind of de-hooking device that improves reliability and concrete tubular pile car, concrete tubular pile pumping cloth system.
The invention provides a kind of de-hooking device, comprising: movable hook, there is the activity hook portion of downward setting, be arranged on the first object movable hook upwardly-openable; Stay hook, has the fixedly hook portion that upwards arranges and coordinate with activity hook portion, and stay hook is fixedly installed on the second object.
Further, also comprise: easing lever, be arranged on rotationally on the first object, force transferring structure, is arranged between easing lever and movable hook so that easing lever promotes movable hook upwards opens.
Further, movable hook is hinged on the first object, and de-hooking device also comprises that restraint hook rotates the position limiting structure of angle.
Further, also comprise: permanent seat, towards the second object, be fixedly installed on the first object, movable hook is hinged on permanent seat.
Further, movable hook comprises two the first lugs, and easing lever is between two the first lugs, and easing lever and two the first lugs are hinged on permanent seat by bearing pin.
Further, force transferring structure comprises power transmission gusset; Power transmission gusset first end is fixedly connected on movable hook, and power transmission gusset the second end has for the bearing surface with easing lever butt.
Further, position limiting structure comprises: restriction montant, is fixedly installed on the downside of the first lug; Spacing cross bar, is fixedly installed on the first object towards the second object, and the end face of spacing cross bar and restriction montant butt, will limit montant backstop at vertical position.
Further, the head of movable hook and stay hook has the guiding surface cooperatively interacting.
Further, the relative vertical plane of clasp joint face of movable hook tilts towards direction away from the first object, and angle of inclination is α, wherein, and 5 ° of α <; The clasp joint face of stay hook coordinates inclination with the clasp joint face of movable hook.
Further, on bearing pin, be provided with lubricating cup, and be provided with lubrication groove on the hinge hole inner arm of easing lever and two the first lugs.
The present invention also provides a kind of concrete tubular pile car, comprises a plurality of car bodies, and a plurality of car bodies comprise initiatively car body and be connected to that initiatively car body rear end is from motor vehicles bodies in turn, and adjacent two car bodies connect by aforesaid de-hooking device; Movable hook is arranged on the rear end of the car body that is positioned at the place ahead, and stay hook is fixedly installed on the front end of the car body that is positioned at rear.
Further, be positioned on the car body in the place ahead and be also provided with push rod in adjacent two car bodies, push rod is positioned at the top of movable hook.
The present invention also provides a kind of concrete tubular pile pumping cloth system, comprises track and pile tube car is in orbit set, and it is characterized in that, pile tube car is aforesaid concrete tubular pile car; The length of the easing lever of a plurality of de-hooking devices of concrete tubular pile car is from active car body to increasing progressively successively from motor vehicles bodies direction, and the baffle plate on track is from active car body to successively decreasing successively from motor vehicles bodies direction.
According to de-hooking device of the present invention, by movable hook upwardly-openable, and activity hook portion is downward, and stay hook is fixedly installed, and fixedly hook portion towards top.In movable hook and stay hook connection procedure, movable hook automatically resets under the effect of gravity, thereby movable hook and stay hook are interconnected.After connection, movable hook, under the effect of gravity, keeps coupled condition, anti-locking hook.Compared to existing technology, the reset force of de-hooking device of the present invention is gravity, and the middle retracing spring that adopts provides reset force compared to existing technology, can effectively avoid the problems such as spring failure, thereby effectively improve reliability.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the main TV structure schematic diagram according to de-hooking device of the present invention;
Fig. 2 is along the sectional structure schematic diagram of B-B direction in Fig. 1;
Fig. 3 is the plan structure schematic diagram according to de-hooking device of the present invention;
Fig. 4 is the main TV structure schematic diagram according to movable hook of the present invention;
Fig. 5 is the plan structure schematic diagram according to movable hook of the present invention;
Fig. 6 is according to the first schematic diagram of concrete tubular pile car unhook process of the present invention;
Fig. 7 is according to the second schematic diagram of concrete tubular pile car unhook process of the present invention;
Fig. 8 is according to the first schematic diagram of concrete tubular pile car connection procedure of the present invention;
Fig. 9 is according to the second schematic diagram of concrete tubular pile car connection procedure of the present invention;
Figure 10 is the 3rd schematic diagram according to concrete tubular pile car connection procedure of the present invention; And
Figure 11 is the plan structure schematic diagram of the structure shown in Fig. 6.
The specific embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
According to de-hooking device of the present invention, de-hooking device comprises movable hook 10 and stay hook 20, constructional drawing as shown in Figures 1 to 3, and in conjunction with Fig. 6 to 11 unhook and connection procedure schematic diagram.Movable hook 10 has the activity hook portion 11 of downward setting, and be arranged on the first object 1 movable hook 10 upwardly-openables, stay hook 20 has the fixedly hook portion 21 that upwards arranges and coordinate with activity hook portion 11, and stay hook 20 is fixedly installed on the second object 2.De-hooking device of the present invention, due to activity hook portion 11 downward, fixedly hook portion 21 is towards top, in movable hook 10 and stay hook 20 connection procedures, movable hook 10 automatically resets under the effect of gravity, thereby movable hook 10 and stay hook 20 are interconnected.After connection, movable hook 10, under the effect of gravity, keeps coupled condition, anti-locking hook.Compared to existing technology, the reset force of de-hooking device of the present invention is gravity, and the middle retracing spring that adopts provides reset force compared to existing technology, can effectively avoid the problems such as spring failure, thereby improves reliability.
Further, de-hooking device also comprises easing lever 30 and force transferring structure, and easing lever 30 is arranged on the first object 1 rotationally, and force transferring structure is arranged between easing lever 30 and movable hook 10, so that easing lever 30 promotes movable hook 10, upwards opens.It is the relative motion of force transferring structure restriction easing lever 30 and movable hook 10, thereby make easing lever 30 under the effect of baffle plate 4, in relative the first object 1 rotation process, promoting movable hook 10 upwards opens, movable hook 10 and stay hook 20 are broken off relations, even if the first object 1 departs from and is connected with the second object 2.
Preferably, de-hooking device also comprises that restraint hook 10 rotates the position limiting structure of angle, because movable hook 10 is hinged on the first object 1, corresponding stop gear is not set, and movable hook 10 will rotate under the effect of middle gravity.By position limiting structure is set, thereby make movable hook 10 can only be pivotally lowered into the state of level or level of approximation under the effect of gravity, and keep this state.As shown in Figure 8 and Figure 9, movable hook 10 has with the head of stay hook 20 the guiding surface A cooperatively interacting, movable hook 10 keeps the state of level, make the first object 1 in the second object 2 motion processes, movable hook 10 is in contact with one another with the guiding surface A of stay hook 20, and effect, thereby make movable hook 10 upward movements, when activity hook portion 11 cross bottom the top of fixing hook portion 21 time, movable hook 10 rotates under the effect of gravity, thereby makes movable hook 10 and the mutual clasp joint of stay hook 20.
As shown in Fig. 1 to 5, in a preferred embodiment of the invention, de-hooking device also comprises, permanent seat 40, towards the second object 2, be fixedly installed on the first object 1, movable hook 10 is hinged on permanent seat 40, by permanent seat 40 is set, conveniently process on the one hand and on the first object 1, movable hook 10 be installed, in installation process, only permanent seat 40 directly need to be fixed on the first object 1, and the installation cooperation structure corresponding with movable hook 10 need to be set on the first object, not need the first object 1 to make corresponding transformation.On the other hand, permanent seat 40 makes movable hook 10 protrude from the first object 1, thereby avoids movable hook 10, easing lever 30 rotation processes and the first object 1 to interfere.
Preferably, movable hook 10 comprises two the first lugs 13, and easing lever 30 is between two the first lugs 13, and easing lever 30 and two the first lugs 13 are hinged on permanent seat 40 by bearing pin 16.On the one hand, can make whole de-hooking device more compact structure, on the other hand, easing lever 30, between two the first lugs 13, makes in easing lever 30 rotation processes, and two the first lugs 13 are stressed evenly, make total stressed more reasonable.
As shown in Figure 4 and Figure 5, in a preferred embodiment, force transferring structure comprises power transmission gusset 12, and power transmission gusset 12 first ends are fixedly connected on the downside of movable hook 10, power transmission gusset 12 second ends have vertically extend and for the bearing surface 12a with easing lever 30 butts.When the first object 1 drives in the second object 2 motion processes, the bottom of easing lever 30 touches baffle plate 4, restriction due to baffle plate 4, the first object 1 moves forward in process, easing lever 30 rotates relative to permanent seat 40, and easing lever 30 is connected on the bearing surface 12a of power transmission gusset 12, thereby promoting movable hook 10 upwards rotates relative to permanent seat 40, make movable hook 10 depart from and be connected with stay hook 20, when the first object 1 and the second object 2 move to the default position of baffle plate 4, the first object 1 continues motion and can automatically make movable hook 10 and stay hook 20 throw off, do not need manual operation, guarantee safety, alleviate work capacity.After movable hook 10 and stay hook 20 break off relations, movable hook 10 and easing lever 30 all reset under the effect of gravity, and movable hook 10 is pivotally lowered into minimum angles place, and easing lever 30 turns to vertical position.
Shown in Fig. 1 and Fig. 3, position limiting structure comprises restriction montant 14 and spacing cross bar 15, restriction montant 14 is fixedly installed on the downside of the first lug 13 and straight down and extends, spacing cross bar 15 is fixedly installed on the first object 1 towards the second object 2, at movable hook 10, rotate in process, restriction montant 14 is connected to after the end face of spacing cross bar 15, movable hook 10 can not continue to move downward, it is the angle that restraint hook 10 rotates, make the state of movable hook 10 maintenance levels or level of approximation, thereby guarantee that the first object 1 is in the second object 2 motion processes, movable hook 10 can be in contact with one another with the guiding surface A of stay hook 20, movable hook 10 is upwards rotated, thereby the movable hook making 10 and stay hook 20 can certainly be dynamically connected in the first object 1 and the second object 2 relative motion processes, do not need manual operations, thereby assurance safety, save work capacity.In this process, due to easing lever 30 with relative to movable hook 10, can rotate, the relative movable hook 10 of easing lever 30 rotates backward, thereby crosses baffle plate 4, after crossing baffle plate 4, easing lever 30 resets.
Preferably, the relative vertical plane of clasp joint face of movable hook 10 tilts towards direction away from the first object 1, and angle of inclination is α, wherein, 5 ° of α <, the clasp joint face of stay hook 20 coordinates inclination with the clasp joint face of movable hook 10, and the clasp joint face of movable hook 10 and stay hook 20 and vertical direction are all angle α, and angle α is in the scope of the Self-locking angle of the making material of movable hook 10 and stay hook 20, usually, 5 ° of α <, preferably, α is set to 3 °.By certain tilt angle alpha is set, at movable hook 10 and stay hook 20 clasp joints, to strain stressed in the situation that, portable propelling hook 10 is connected with stay hook 20 disengagings.Be that portable propelling hook 10 upwards rotates.Because angle α is in the scope of the Self-locking angle of the making material of movable hook 10 and stay hook 20, movable hook 10 can be under the effect of the two mutual pulling force, along clasp joint, moves facing up and two causes breaking off relations, and certain tilt angle alpha is set, can be at the reliability that does not affect connection, convenient unhook.
More preferably, on bearing pin 16, be provided with lubricating cup 16a, and be provided with lubrication groove 16b on the hinge hole inner arm of easing lever 30 and two the first lugs 13, thereby reduce bearing pin 16 and easing lever 30, and the friction force between bearing pin 16 and the first lug 13, make easing lever 30 and the first lug 13 can flexible rotating, the two can be resetted reliably under the effect of gravity, prevent that severe operating mode from affecting its rotating effect.
As shown in Fig. 6 to 11, the present invention also provides a kind of concrete tubular pile car, comprise a plurality of car bodies, adjacent two car bodies connect by aforesaid de-hooking device, and, movable hook 10 is arranged on the rear end of the car body that is positioned at the place ahead, and stay hook 20 is fixedly installed on the front end of the car body that is positioned at rear, thereby realizes connection and disengaging between each car body.Particularly, concrete tubular pile car can be concrete transport vehicle, can be also concrete duct supported cart, and de-hooking device can be realized being connected of concrete transport vehicle and pipeline support car, also can realize interconnecting of a plurality of pipeline support cars.
As shown in Fig. 6 to 7, the first object (being positioned at the car body in the place ahead) 1 drags the second object (being positioned at the car body at rear) 2 edge on track 3 by aforesaid de-hooking device and illustrates to left movement, when moving to the position of baffle plate 4, baffle plate 4 acts on easing lever 30, easing lever 30 is along direction as shown turning clockwise, and the bearing surface 12a butt of easing lever 30 and power transmission gusset 12 second ends, thereby promoting movable hook 10 upwards rotates, movable hook 10 turns to position shown in Fig. 7 together with easing lever 30, thereby make movable hook 10 depart from and be connected with stay hook 20, the car body that is positioned at the place ahead continues motion, easing lever 30 is crossed over after baffle plate 4, movable hook 10 and easing lever 30 reset, the second object (being positioned at the car body at rear) stops.
On the contrary, as shown in Figures 8 to 10, when the car body that is arranged in the place ahead is to the body movement process that is positioned at rear, movable hook 10 is level or level of approximation state under the effect of restriction montant 14 and spacing cross bar 15.When the body movement that is positioned at the place ahead is to as shown in Figure 8, when movable hook 10 docks mutually with the guiding surface A of stay hook 20, the movable hook 10 upper stay hook 20 of climbing.Meanwhile easing lever 30 swings under the effect of baffle plate 4 backward, and crosses over baffle plate 4.Preferably, the car body that is positioned at the place ahead is also provided with the push rod 50 that is positioned at movable hook 10 tops, and the distance between two two adjacent car bodies is to a certain extent little, is positioned at car body that the push rod 50 on the car body in the place ahead promotes to be positioned at rear together toward the right motion.
In addition, as shown in Fig. 6 to 11, the present invention also provides a kind of concrete tubular pile pumping cloth system, comprise track 3 and aforesaid concrete tubular pile car, the length of the easing lever 30 of a plurality of de-hooking devices of concrete tubular pile car is from active car body to increasing progressively successively from motor vehicles bodies direction, and the baffle plate 4 on track 3 is from active car body to successively decreasing successively from motor vehicles bodies direction.Be that de-hooking device of the present invention can also be applicable to disengaging between a plurality of objects and be connected, de-hooking device is installed between adjacent two of a plurality of objects, each easing lever 30 is designed to different length, the height that baffle plate 4 elevates above the soil is corresponding with corresponding easing lever 30, and the length of easing lever 30 increases progressively successively from headstock to tailstock direction, correspondingly, the height of baffle plate successively decreases successively, thereby while making each object of which movement to corresponding position, easing lever 30 and corresponding baffle plate 4 effects, throw off the movable hook 10 of each de-hooking device and stay hook 20 mutually.And when each object of which movement arrives corresponding position, each baffle plate 4 can, to not being the easing lever 30 formation effects of corresponding length, not break off relations thereby prevent from missing.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
According to de-hooking device of the present invention and concrete tubular pile car, concrete tubular pile pumping cloth system, by movable hook upwardly-openable, and activity hook portion is downward, and stay hook is fixedly installed, and fixedly hook portion towards top.In movable hook and stay hook connection procedure, movable hook automatically resets under the effect of gravity, thereby movable hook and stay hook are interconnected.After connection, movable hook, under the effect of gravity, keeps coupled condition, anti-locking hook.Compared to existing technology, the reset force of de-hooking device of the present invention is gravity, and the middle retracing spring that adopts provides reset force compared to existing technology, can effectively avoid the problems such as spring failure, thereby effectively improve reliability.In addition, the present invention compared to existing technology structure is more simple, compact, and low cost of manufacture easily realizes between a plurality of adjacent objects and departs from and be connected.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (13)
1. a de-hooking device, is characterized in that, comprising:
Movable hook (10), has the activity hook portion (11) of downward setting, is arranged on the first object (1) described movable hook (10) upwardly-openable;
Stay hook (20), has the fixedly hook portion (21) that upwards arranges and coordinate with described activity hook portion (11), and described stay hook (20) is fixedly installed on the second object (2).
2. de-hooking device according to claim 1, is characterized in that, also comprises:
Easing lever (30), is arranged on described the first object (1) upper rotationally,
Force transferring structure, is arranged between described easing lever (30) and described movable hook (10) so that described easing lever (30) promotes described movable hook (10) upwards opens.
3. de-hooking device according to claim 2, is characterized in that,
It is upper that described movable hook (10) is hinged on described the first object (1), and described de-hooking device also comprises that the described movable hook of restriction (10) rotates the position limiting structure of angle.
4. de-hooking device according to claim 3, is characterized in that, also comprises:
Permanent seat (40), is fixedly installed on described the first object (1) towards described the second object (2), and described movable hook (10) is hinged on described permanent seat (40).
5. de-hooking device according to claim 4, is characterized in that,
Described movable hook (10) comprises two the first lugs (13), described easing lever (30) is positioned between two described the first lugs (13), and described easing lever (30) is hinged on described permanent seat (40) by bearing pin (16) with two described the first lugs (13).
6. de-hooking device according to claim 2, is characterized in that,
Described force transferring structure comprises power transmission gusset (12);
It is upper that described power transmission gusset (12) first end is fixedly connected on described movable hook (10), and described power transmission gusset (12) second ends have for the bearing surface (12a) with described easing lever (30) butt.
7. de-hooking device according to claim 5, is characterized in that, described position limiting structure comprises:
Restriction montant (14), is fixedly installed on the downside of described the first lug (13);
Spacing cross bar (15), is fixedly installed on described the first object (1) towards described the second object (2) upper, and the end face of described spacing cross bar (15) and described restriction montant (14) butt, with by described restriction montant backstop at vertical position.
8. de-hooking device according to claim 1, is characterized in that,
Described movable hook (10) has with the head of described stay hook (20) guiding surface (A) cooperatively interacting.
9. de-hooking device according to claim 1, is characterized in that,
The relative vertical plane of clasp joint face of described movable hook (10) tilts towards direction away from described the first object (1), and angle of inclination is α, wherein, and 5 ° of α <;
The clasp joint face of described stay hook (20) coordinates inclination with the clasp joint face of described movable hook (10).
10. de-hooking device according to claim 5, is characterized in that,
On described bearing pin (16), be provided with lubricating cup (16a), and be provided with lubrication groove (16b) on the hinge hole inner arm of described easing lever (30) and two described the first lugs (13).
11. 1 kinds of concrete tubular pile cars, comprise a plurality of car bodies, and described a plurality of car bodies comprise active car body and are connected to described active car body rear end in turn from motor vehicles bodies, it is characterized in that,
Adjacent two described car bodies connect by the de-hooking device described in any one in claim 1 to 10;
Described movable hook (10) is arranged on the rear end of the car body that is positioned at the place ahead, and described stay hook (20) is fixedly installed on the front end of the car body that is positioned at rear.
12. concrete tubular pile cars according to claim 11, is characterized in that,
In adjacent two described car bodies, be positioned on the car body in the place ahead and be also provided with push rod (50), described push rod (50) is positioned at the top of described movable hook (10).
13. 1 kinds of concrete tubular pile pumping cloth systems, comprise track and are arranged on the pile tube car on described track, it is characterized in that,
Described pile tube car is the concrete tubular pile car described in claim 11 or 12;
The length of the easing lever of a plurality of de-hooking devices of described concrete tubular pile car (30) is from active car body to increasing progressively successively from motor vehicles bodies direction, and the baffle plate (4) on described track (3) is from active car body to successively decreasing successively from motor vehicles bodies direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310585633.9A CN103600627B (en) | 2013-11-19 | 2013-11-19 | De-hooking device and concrete tubular pile car, concrete tubular pile pumping cloth system |
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| CN201310585633.9A CN103600627B (en) | 2013-11-19 | 2013-11-19 | De-hooking device and concrete tubular pile car, concrete tubular pile pumping cloth system |
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| CN110606303B (en) * | 2018-06-15 | 2023-07-21 | Juki株式会社 | Connection structure and conveying unit |
| CN109109584A (en) * | 2018-09-18 | 2019-01-01 | 东岳机械股份有限公司 | A kind of de- hooking device of air entrained concrete hook vehicle |
| CN110103327A (en) * | 2019-05-22 | 2019-08-09 | 东岳机械股份有限公司 | A kind of de- hitch gear of aerated concrete steam-cured vehicle |
| CN110103327B (en) * | 2019-05-22 | 2024-01-23 | 东岳机械股份有限公司 | Unhooking mechanism of aerated concrete steam-curing vehicle |
| CN110352941A (en) * | 2019-07-29 | 2019-10-22 | 河北省林业科学研究院 | The method for catching of hayashishita nocuousness muroid |
| CN110539772A (en) * | 2019-09-24 | 2019-12-06 | 苏国安 | Automatic hooking and unhooking mechanism, automatic hooking and unhooking device of mine car and mine car |
| CN110539772B (en) * | 2019-09-24 | 2024-03-05 | 苏国安 | Automatic hooking and unhooking mechanism, automatic hooking and unhooking device of mine car and mine car |
| CN114620385A (en) * | 2020-12-10 | 2022-06-14 | 沈阳新松机器人自动化股份有限公司 | Shuttle car rescue device capable of automatically and quickly locking and unlocking |
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