CN213976742U - Rotary cover moving machine - Google Patents

Rotary cover moving machine Download PDF

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Publication number
CN213976742U
CN213976742U CN202022953135.3U CN202022953135U CN213976742U CN 213976742 U CN213976742 U CN 213976742U CN 202022953135 U CN202022953135 U CN 202022953135U CN 213976742 U CN213976742 U CN 213976742U
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rotary
lifting arm
hydraulic cylinder
base
automatic
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CN202022953135.3U
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Chinese (zh)
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付光勇
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Sinosteel Xian Machinery Co Ltd
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Sinosteel Xian Machinery Co Ltd
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Abstract

The utility model provides a rotation moves lid machine relates to and moves lid machine field, can solve the automatic unhook problem that moves the lid machine on moving the basis that the lid machine revolved automatically. The automatic uncapping device comprises a lifting arm, an automatic uncapping mechanism and a slewing mechanism, wherein a hook is arranged at the cantilever end of the lifting arm, and the mounting end of the lifting arm is connected with the automatic uncapping mechanism; the automatic cover-removing mechanism is arranged on the rotary mechanism and drives the lifting arm to move away from the trench cover; the slewing mechanism is arranged on the ground and drives the automatic uncapping mechanism and the lifting arm to rotate. The automatic uncapping mechanism is arranged on the rotary mechanism, the rotary mechanism is used as a mounting seat of the automatic uncapping mechanism, the automatic uncapping mechanism and the lifting arm of the cover moving machine can be conveniently mounted, normal rotation of the rotary mechanism can be realized, and the automatic uncapping mechanism has the advantages of convenience in mounting and compact structure.

Description

Rotary cover moving machine
Technical Field
The utility model relates to a move and cover the machine field, especially relate to a rotation moves and covers machine.
Background
With the development of the national iron and steel industry, in order to solve the problem that a large amount of molten iron and dust splashes after the front opening of a blast furnace, reduce burn accidents, improve the environmental level of the blast furnace, improve the operating conditions and the dust removal effect of the iron notch area and the tuyere area, the use of a trench cover is increased in the construction of medium and large blast furnaces to prevent the molten iron and the dust from splashing during tapping. In order not to affect the operation of opening and blocking the taphole, the main ditch cover positioned at the most front end needs to be removed during the operation of the furnace front mud cannon and the tapping machine, and the special equipment for moving the main ditch cover is a cover moving machine.
The trench cover used at present is a welding structural part, and a high-temperature refractory material is sprayed inside the trench cover. After a period of use, the refractory layer needs to be repaired, and therefore, the cover moving machine equipment needs to have a function of reciprocating the main trench cover between the working position and the standby position.
Based on the existing cover moving machine, on the basis of realizing the reciprocating movement and energy supply of the main trench cover at the working position and the standby position, how to realize the automatic unhooking of the cover moving machine becomes a technical problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The utility model provides a rotary type cover moving machine, which is characterized in that an automatic cover removing mechanism is arranged on a rotary mechanism, the rotary mechanism is used as a mounting seat of the automatic cover removing mechanism, the automatic cover removing mechanism and a lifting arm of the cover moving machine can be conveniently mounted, the normal rotation of the rotary mechanism can be realized, and the rotary type cover moving machine has the advantages of convenient mounting and compact structure; the automatic cover-releasing mechanism controls the hook of the lifting arm to automatically move away from the groove cover hanging trunnion, so that the unhooking action can be smoothly realized.
Realize the utility model discloses the technical scheme of purpose as follows:
a rotary lid mover comprising:
the cantilever end of the lifting arm is provided with a hook, and the mounting end of the lifting arm is connected with an automatic uncapping mechanism;
the automatic cover-removing mechanism is arranged on the slewing mechanism and drives the lifting arm to move away from the trench cover;
the slewing mechanism is arranged on the ground and drives the automatic uncapping mechanism and the lifting arm to rotate.
As a further improvement of the present invention, the automatic uncapping mechanism comprises:
the swing rod is arranged between the lifting arm and the swing mechanism, the swing rod is vertically arranged, and the top end of the swing rod is movably connected with the tail end of the lifting arm;
the first hydraulic cylinder controls the swinging rod to act, a cylinder barrel of the first hydraulic cylinder is movably connected with the swing mechanism, and a piston rod of the first hydraulic cylinder is movably connected with the swinging rod;
and the second hydraulic cylinder is used for controlling the lifting arm to act, a cylinder barrel of the second hydraulic cylinder is movably connected with the swing mechanism, and a piston rod of the second hydraulic cylinder is movably connected with the lifting arm.
As a further improvement of the present invention, the swing mechanism includes:
the rotary base is connected with the base through a rotary support, and the automatic cover-removing mechanism is arranged on the rotary base;
a base foundation mounted on the ground;
the rotary support is driven to rotate by a driving piece, and the rotary base and the rotary support rotate together.
As a further improvement, the base is provided with a limiting device, the rotating base is provided with a limiting block, the limiting block is followed by the rotating support and the rotating base rotates until contacting the limiting device, the rotating support and the rotating base stop rotating.
As a further improvement of the utility model, slewing bearing is double ball formula internal tooth slewing bearing, the gear and the meshing of double ball formula internal tooth slewing bearing of driving piece, driving piece drive rotating base drives the lift arm and revolves together.
As a further improvement of the present invention, the swivel base is provided with a first movable connecting portion, a second movable connecting portion and a third movable connecting portion; the second movable connecting part is positioned between the first movable connecting part and the third movable connecting part;
the first movable connecting portion is movably connected with a second hydraulic cylinder of the automatic cap removing mechanism, the second movable connecting portion is movably connected with a first hydraulic cylinder of the automatic cap removing mechanism, and the third movable connecting portion is movably connected with the bottom end of a swing rod of the automatic cap removing mechanism.
As a further improvement of the utility model, a piston rod of the second hydraulic cylinder is movably connected with the middle part of the lifting arm;
the cylinder barrel movable connection point and the piston rod movable connection point of the second hydraulic cylinder are staggered along the length direction of the lifting arm, the cylinder barrel movable connection point of the second hydraulic cylinder is arranged close to the head end of the lifting arm, and the piston rod movable connection point of the second hydraulic cylinder is arranged close to the tail end of the lifting arm.
As a further improvement, the subaerial excavation has the installation hole, the foundation base is fixed in the installation hole, the upper surface of foundation base is higher than ground.
As a further improvement of the utility model, the length of rotating base is greater than the length of installation hole, part rotating base is located the outside of installation hole.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses install automatic mechanism of uncapping in rotation mechanism, utilize rotation mechanism to act as the mount pad of automatic mechanism of uncapping, the automatic mechanism of uncapping of both being convenient for and the installation of moving cover machine lifting arm can realize rotation mechanism's normal rotation again, have simple to operate, compact structure's advantage.
2. The utility model discloses an automatic couple of uncapping mechanism control lifting arm is automatic to hang gudgeon department from the ditch cover and withdraws from, can realize the unhook action smoothly.
Drawings
FIG. 1 is a schematic structural view of a rotary type cap-moving machine;
FIG. 2 is a schematic view of the automatic unhooking action of the rotary type cap moving machine;
FIG. 3 is a schematic view of the automatic rotation of the rotary type cap-moving machine;
in the figure, 1, a base; 2. a rotating base; 3. a swing lever; 4. a first hydraulic cylinder; 5. a second hydraulic cylinder; 6. a lift arm; 7. an encoder; 8. a slewing bearing; 9. a motor; 10. a limiting device; 11. a trench cover; 12. and (4) hanging hooks.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
Referring to fig. 1-3, an embodiment of the present invention provides a rotary type cap moving machine, which includes a lifting arm 6, an automatic cap removing mechanism and a rotary mechanism, wherein a cantilever end of the lifting arm 6 is provided with a hook 12, and an installation end of the lifting arm 6 is connected to the automatic cap removing mechanism; the automatic cover-removing mechanism is arranged on the rotary mechanism and drives the lifting arm 6 to move away from the trench cover 11; the rotary mechanism is arranged on the ground and drives the automatic uncapping mechanism and the lifting arm 6 to rotate.
The utility model discloses a rotation moves and covers machine improves the whole bearing capacity of slewer when its whole weight and the increase in a small amount of rotating base size greatly.
The automatic uncapping mechanism comprises a swing rod 3, a first hydraulic cylinder 4 and a second hydraulic cylinder 5, wherein the swing rod 3 is installed between a lifting arm 6 and a swing mechanism, the swing rod 3 is vertically arranged, and the top end of the swing rod 3 is movably connected with the tail end of the lifting arm 6; the first hydraulic cylinder 4 controls the oscillating rod 3 to act, a cylinder barrel of the first hydraulic cylinder 4 is movably connected with the slewing mechanism, and a piston rod of the first hydraulic cylinder 4 is movably connected with the oscillating rod 3; the second hydraulic cylinder 5 controls the lifting arm 6 to move, a cylinder barrel of the second hydraulic cylinder 5 is movably connected with the rotating mechanism, and a piston rod of the second hydraulic cylinder 5 is movably connected with the lifting arm 6.
The utility model discloses automatic uncap mechanism has the advantage that the hoisting height is higher, couple 12 can realize similar translation action to automatic hanging gudgeon department from ditch cover 11 and puting aside, realizing the unhooking action smoothly, directly lifting away ditch cover 11 with the overhead traveling crane, do not need the manual work to throw off couple 12 and ditch cover 11.
The rotary mechanism of the embodiment of the utility model comprises a rotary base 2, a base 1 and a rotary support 8, wherein the rotary base 2 is connected with the base 1 through the rotary support 8, and the automatic uncapping mechanism is arranged on the rotary base 2; the base seat 1 is arranged on the ground; the rotation of the rotary support 8 is driven by a driving member, and the rotary base 2 rotates together with the rotary support 8. The utility model discloses swing rod 3's of embodiment bottom and 2 swing joint of rotating base
On the basis of above-mentioned scheme, the utility model discloses install stop device 10 on the basic base 1, install the stopper on the rotating base 2, the stopper rotates until contacting stop device 10, rotating base 8 and rotating base 2 stall along with rotating base 8 and rotating base 2.
The utility model discloses stop device 10 and stopper, steerable and detection gyration angle, the cantilever gyration is little to rotation mechanism's impact force when stopping the position.
Preferably the utility model discloses slewing bearing 8 is double ball formula internal tooth slewing bearing, and the gear and the meshing of double ball formula internal tooth slewing bearing of driving piece, driving piece drive rotating base 2 drive lift arm 6 gyration together.
On the basis of the above scheme, please refer to fig. 1-3, a first movable connecting part, a second movable connecting part and a third movable connecting part are arranged on the revolving base 2; the second movable connecting part is positioned between the first movable connecting part and the third movable connecting part; the first movable connecting part is movably connected with a second hydraulic cylinder 5 of the automatic cap removing mechanism, the second movable connecting part is movably connected with a first hydraulic cylinder 4 of the automatic cap removing mechanism, and the third movable connecting part is movably connected with the bottom end of a swing rod 3 of the automatic cap removing mechanism. Preferably, the rotary base 2 is provided with a first movable connecting part, a second movable connecting part and a third movable connecting part; the second movable connecting part is positioned between the first movable connecting part and the third movable connecting part; the first movable connecting part is movably connected with the cylinder barrel of the second hydraulic cylinder 5, the second movable connecting part is movably connected with the cylinder barrel of the first hydraulic cylinder 4, and the third movable connecting part is movably connected with the bottom end of the swinging rod 3.
It should be noted that the swing joint according to the embodiment of the present invention is preferably a hinge joint, and the swing joint according to the embodiment of the present invention is preferably a hinge point.
Further, referring to fig. 1-3, a piston rod of the second hydraulic cylinder 5 is movably connected to a middle portion of the lifting arm 6; the cylinder barrel swing joint point and the piston rod swing joint point of the second hydraulic cylinder 5 are staggered along the length direction of the lifting arm 6, the cylinder barrel swing joint point of the second hydraulic cylinder 5 is arranged close to the head end of the lifting arm 6, and the piston rod swing joint point of the second hydraulic cylinder 5 is arranged close to the tail end of the lifting arm 6.
Referring to fig. 1-3, preferably, the piston rod of the second hydraulic cylinder 5 is movably connected to the middle of the lifting arm 6; the cylinder barrel swing joint point and the piston rod swing joint point of the second hydraulic cylinder 5 are staggered along the length direction of the lifting arm 6, the cylinder barrel swing joint point of the second hydraulic cylinder 5 is arranged close to the head end of the lifting arm 6, and the piston rod swing joint point of the second hydraulic cylinder 5 is arranged close to the tail end of the lifting arm 6.
The embodiment of the utility model provides a be higher than first swing joint portion and third swing joint portion with second swing joint portion, raise the cylinder swing joint point of first pneumatic cylinder 4 promptly, can effectively reduce the inclination of first pneumatic cylinder 4, more do benefit to the swing of first pneumatic cylinder 4 promotion swinging arms 3.
Furthermore, the bottom end movable connecting point and the top end movable connecting point of the swing rod 3 are staggered along the length direction of the lifting arm 6; the top end of the swing rod 3 is movably connected with the tail end of the lifting arm 6, and a movable connecting point at the bottom end of the swing rod 3 is arranged close to a movable connecting point of a cylinder barrel of the first hydraulic cylinder 4.
In order to facilitate the movement of the swing rod 3 and the lifting arm 6 to prevent the swing rod 3 and the lifting arm 6 from being locked, please refer to fig. 1-3, in the embodiment of the present invention, the swing direction of the swing rod 3 is the same as the swing direction of the second hydraulic cylinder 5. Preferably the lifting arm 6 translates as the piston rod of the first hydraulic cylinder 4 extends and retracts. Preferably the utility model discloses second pneumatic cylinder 5 is for promoting the pneumatic cylinder, and first pneumatic cylinder 4 is swing hydraulic cylinder.
The utility model discloses a second pneumatic cylinder 5 descends and puts down ditch cover 11, makes the couple 12 of lifting arm 6 keep away from the ditch cover 11 and goes up a string of point, and first pneumatic cylinder 4 promotes swinging arms 3 and drives lifting arm 6 and carry out the orbit of similar translation this moment, hangs the couple 12 of lifting arm 6 from ditch cover 11 and removes in the trunnion, realizes that lifting arm 6 and ditch cover 11 are automatic to throw off completely, the embodiment of the utility model discloses a only need control second pneumatic cylinder 5 and first pneumatic cylinder 4 work and just can realize breaking away from the action of ditch cover 11 and couple 12, have the convenient advantage of control.
For the convenience of the utility model discloses rotation cover moving machine installation, the embodiment of the utility model provides a there is the installation hole subaerial excavation, and foundation base 1 is fixed in the installation hole, and foundation base 1's upper surface is higher than ground. Preferably, the length of the pivoting base 2 is greater than the length of the installation pit, and a part of the pivoting base 2 is located outside the installation pit.
Please refer to fig. 2 and fig. 3, the utility model discloses a move lid machine adopts fixed installation, it is fixed with basic base 1 and ground, rotating base 2 passes through slewing bearing 8 and is connected with basic base 1, 3 one ends of swinging arms are articulated with slewing base 2, one end is articulated with 6 afterbody of lift arm, swing hydraulic cylinder one end is articulated with slewing base 2, one end is articulated with swinging arms 3, lift hydraulic cylinder one end is articulated with slewing base 2, one end is articulated with 6 middle parts of lift arm, motor 9 is fixed with slewing base 2, motor 9 goes out the axle and passes through pinion and slewing bearing 8 meshing, the encoder is installed in centre of gyration department and is fixed on basic base 1, stop device 10 fixes on basic base 1.
The cover lifting process of the cover moving machine: the lifting hydraulic cylinder directly takes oil to drive the lifting arm 6 to rotate around the hinged point of the swinging rod 3, so that the height of the lifting trench cover 11 is up to 900mm (the swinging hydraulic cylinder and the motor 9 do not work at the moment).
The cover moving process of the cover moving machine comprises the following steps: promote the pneumatic cylinder pressurize, the swing hydraulic cylinder is out of work, 9 oil feed drive pinions of motor this moment and 8 internal tooth meshes of slewing bearing (8 inner circles of slewing bearing are fixed with base 1, the outer lane is fixed with slewing base 2), thereby drive slewing base 2 and drive lift arm 6 and ditch cover 11 and revolve together, because encoder shell is fixed with base 1, it is fixed with slewing base 2 to go out the axle, thereby can drive the rotatory angle of a rotation base 2 detectable when slewing base 2 is rotatory. When the rotary base 2 rotates to the standby position, the collision block thereof contacts with the limiting device 10 to realize soft contact and accurate positioning.
Unhooking process of the cover moving machine: the motor 9 and the swing hydraulic cylinder do not work, the lifting hydraulic cylinder descends to place the trench cover 11, the hook 12 of the lifting arm 6 is far away from the hanging point on the trench cover 11, at the moment, the oil inlet of the swing hydraulic cylinder pushes the swing rod 3 to drive the lifting arm 6 to carry out a movement track similar to translation, the hook 12 of the lifting arm 6 is removed from the hanging trunnion of the trench cover 11, the lifting arm 6 and the trench cover 11 are automatically and completely separated, the motor 9 drives the rotary base 2 to rotate again, the lifting arm 6 of the cover moving machine is far away from the trench cover 11, the trench cover 11 is directly removed by a crown block, and the trench cover 11 is smoothly replaced.
The utility model discloses a rotation moves and covers machine mainly comprises hoisting device, slewer, pendulous device, basic base 1 etc. can realize promotion, rotation, the swing function of lifting arm 6.
The utility model discloses a rotary cover moving machine, which comprises a lifting arm 6, a swing rod 3, a lifting hydraulic cylinder and a swing hydraulic cylinder, wherein the lifting hydraulic cylinder is arranged in front to increase the lifting height; the device can enable the hook 12 at the front end of the lifting arm 6 to realize a similar translation movement track, the translation distance is about 400mm (the movement distance is enough to enable the hook 12 to be removed from the hanging trunnion of the trench cover 11, and the hook 12 of the lifting arm 6 is completely separated from the trench cover 11), and the total movement distance is about 500 mm. The utility model discloses a rotation moves lid machine adopts double ball formula internal tooth slewing bearing, and area is little, and bearing capacity is strong. The utility model discloses a rotation moves lid machine, hydraulic buffer and mechanical stop device 10 are installed to rotation cantilever work and standby position, and better realization slewer steady soft contact reaches accurate location.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (9)

1. A rotary type cover moving machine is characterized by comprising:
the cantilever end of the lifting arm is provided with a hook, and the mounting end of the lifting arm is connected with an automatic uncapping mechanism;
the automatic cover-removing mechanism is arranged on the slewing mechanism and drives the lifting arm to move away from the trench cover;
the slewing mechanism is arranged on the ground and drives the automatic uncapping mechanism and the lifting arm to rotate.
2. The rotary lid moving machine according to claim 1, wherein the automatic lid removing mechanism comprises:
the swing rod is arranged between the lifting arm and the swing mechanism, the swing rod is vertically arranged, and the top end of the swing rod is movably connected with the tail end of the lifting arm;
the first hydraulic cylinder controls the swinging rod to act, a cylinder barrel of the first hydraulic cylinder is movably connected with the swing mechanism, and a piston rod of the first hydraulic cylinder is movably connected with the swinging rod;
and the second hydraulic cylinder is used for controlling the lifting arm to act, a cylinder barrel of the second hydraulic cylinder is movably connected with the swing mechanism, and a piston rod of the second hydraulic cylinder is movably connected with the lifting arm.
3. The rotary lid moving machine as recited in claim 1, wherein the swing mechanism comprises:
the rotary base is connected with the base through a rotary support, and the automatic cover-removing mechanism is arranged on the rotary base;
a base foundation mounted on the ground;
the rotary support is driven to rotate by a driving piece, and the rotary base and the rotary support rotate together.
4. The rotary type cover moving machine according to claim 3, wherein a limiting device is installed on the base, a limiting block is installed on the rotary base, the limiting block rotates along with the rotary support and the rotary base until contacting the limiting device, and the rotary support and the rotary base stop rotating.
5. The rotary cap moving machine according to claim 3, wherein the slewing bearing is a double-row ball type internal tooth slewing bearing, a gear of the driving member is meshed with the double-row ball type internal tooth slewing bearing, and the driving member drives the slewing base to drive the lifting arm to rotate together.
6. The rotary cap moving machine according to claim 3, wherein the rotary base is provided with a first movable connecting part, a second movable connecting part and a third movable connecting part; the second movable connecting part is positioned between the first movable connecting part and the third movable connecting part;
the first movable connecting portion is movably connected with a second hydraulic cylinder of the automatic cap removing mechanism, the second movable connecting portion is movably connected with a first hydraulic cylinder of the automatic cap removing mechanism, and the third movable connecting portion is movably connected with the bottom end of a swing rod of the automatic cap removing mechanism.
7. The rotary lid moving machine according to claim 6, wherein the piston rod of the second hydraulic cylinder is movably connected to the middle part of the lifting arm;
the cylinder barrel movable connection point and the piston rod movable connection point of the second hydraulic cylinder are staggered along the length direction of the lifting arm, the cylinder barrel movable connection point of the second hydraulic cylinder is arranged close to the head end of the lifting arm, and the piston rod movable connection point of the second hydraulic cylinder is arranged close to the tail end of the lifting arm.
8. The rotary cap moving machine according to any one of claims 3 to 7, wherein a mounting pit is dug in the ground, the base is fixed in the mounting pit, and the upper surface of the base is higher than the ground.
9. The rotary lid moving machine as claimed in claim 8, wherein the length of the rotary base is greater than the length of the mounting pit, and part of the rotary base is located outside the mounting pit.
CN202022953135.3U 2020-12-11 2020-12-11 Rotary cover moving machine Active CN213976742U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022953135.3U CN213976742U (en) 2020-12-11 2020-12-11 Rotary cover moving machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022953135.3U CN213976742U (en) 2020-12-11 2020-12-11 Rotary cover moving machine

Publications (1)

Publication Number Publication Date
CN213976742U true CN213976742U (en) 2021-08-17

Family

ID=77241872

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022953135.3U Active CN213976742U (en) 2020-12-11 2020-12-11 Rotary cover moving machine

Country Status (1)

Country Link
CN (1) CN213976742U (en)

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