CN112092781B - Agricultural machine maintenance fixed platform - Google Patents
Agricultural machine maintenance fixed platform Download PDFInfo
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- CN112092781B CN112092781B CN202011026648.8A CN202011026648A CN112092781B CN 112092781 B CN112092781 B CN 112092781B CN 202011026648 A CN202011026648 A CN 202011026648A CN 112092781 B CN112092781 B CN 112092781B
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- buoyancy
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- supporting
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- 238000012423 maintenance Methods 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 241001330002 Bambuseae Species 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S5/00—Servicing, maintaining, repairing, or refitting of vehicles
Abstract
The utility model discloses an agricultural machinery maintenance fixed platform, which comprises a supporting platform positioned on the ground, wherein two maintenance lanes which are arranged in parallel are arranged on the supporting platform, a maintenance groove is arranged between the two maintenance lanes, and a buoyancy device is arranged below the supporting platform; the buoyancy device comprises a buoyancy pool positioned below the buoyancy device, guide rails are uniformly arranged at the bottom of the buoyancy pool and form a guide group, the guide group is in sliding connection with a buoyancy tank, the buoyancy tank is hollow, the top end of the buoyancy tank is connected with a fixed rod, a through hole groove parallel to the maintenance groove is formed in the center of the maintenance groove, and the fixed rod is connected with a supporting mechanism; the supporting mechanism comprises a positioning pin rod and a C-shaped supporting rod, a positioning pin hole is formed in the lower end of the C-shaped supporting rod, the positioning pin hole is connected with the positioning pin rod in an inserting mode and in a rotating mode, and the top end of the C-shaped supporting rod is connected with a lifting head. Through the arrangement, the multifunctional engine has multiple practical functions, can complete the disassembly and assembly of heavy parts such as the engine and the like, and is easy to popularize and use.
Description
Technical Field
The utility model relates to the field of agricultural machinery, in particular to a fixed platform for maintaining agricultural machinery.
Background
Agricultural machinery refers to various machines used in the production process of crop planting and animal husbandry, as well as in the primary processing and treatment process of agricultural and animal products. Agricultural machines include agricultural power machines, farmland construction machines, soil farming machines, and the like. Agricultural machinery belongs to relative concept, refers to a general term for all machinery used in agriculture, animal husbandry, forestry and fishery, and belongs to the category of agricultural implements. The popularization of agricultural machinery is called agricultural mechanization.
China is a big agricultural country, and with the continuous deepening of agricultural mechanization process in recent years, more and more agricultural machines are moved into the production and the life of vast farmers. Agricultural machinery has its general characteristics, generally adopts diesel engine and is comparatively heavy, nevertheless because its structure is comparatively loose, consequently has extensive maintenance space when the maintenance. However, unlike the widespread use of automobiles (professional 4S service shops are widely blooming around the world), the development of agricultural mechanization is still burdensome. The level of maintenance tools and maintenance personnel for agricultural machinery is generally low.
Mention an agricultural machine maintenance platform as in the utility model patent of publication number CN209831560U, which comprises a pane, the equal fixedly connected with supporting leg in four corners department of panel lower surface, be equipped with the cavity in the panel, the dirty hole of a plurality of collections with the cavity intercommunication is seted up to the lateral wall of panel upside, the pore wall activity that the dirty hole of collection is close to the upper end has cup jointed the movable plate, a plurality of small openings have been seted up to the lateral wall of movable plate, two stoppers of the pore wall symmetry fixedly connected with in the dirty hole of collection, the lateral wall fixedly connected with of panel downside and the blow off pipe of the fixed intercommunication of cavity are a plurality of the same fixed plate of fixedly connected with between the supporting leg, the lateral wall of fixed plate upside is provided with an album dirty case. The utility model effectively avoids the problem that a large amount of oil stains are easily stained on the maintenance platform, effectively improves the working comfort of maintenance workers, also improves the use convenience of the bolt, and effectively avoids the problem that the bolt is messy and is easy to lose.
From the foregoing, it can be seen that a maintenance platform is provided that greatly improves the comfort of the maintenance personnel of agricultural machinery. However, the maintenance platform has a single function and is not suitable for wide use, so that the maintenance platform is further improved.
Disclosure of Invention
The utility model aims to provide a fixed platform for agricultural machinery maintenance, which has multiple practical functions, can complete the disassembly and assembly of heavy parts such as an engine and the like, and is easy to popularize and use.
In order to achieve the purpose, the utility model provides the following technical scheme: a fixed platform for maintaining agricultural machinery comprises a supporting platform positioned on the ground, wherein two maintenance lanes which are arranged in parallel are arranged on the supporting platform, a maintenance groove is arranged between the two maintenance lanes, and a buoyancy device is arranged below the supporting platform;
the buoyancy device comprises a buoyancy pool and a reservoir which are positioned below the supporting platform, a water inlet pump for pumping water to the buoyancy pool and a water discharge pump for pumping water to the reservoir are arranged between the buoyancy pool and the reservoir, the bottom of the buoyancy pool is uniformly provided with more than or equal to three guide rails, the guide rails are fixedly connected with the supporting platform and support the supporting platform, the guide rails are arranged to form a square or round guide group for up-and-down guiding, a square or round buoyancy box is connected in the guide group in a sliding manner, the buoyancy box is hollow, the top end of the buoyancy box is connected with a fixed rod, a through hole groove parallel to the maintenance groove is formed in the center of the maintenance groove, and the fixed rod penetrates through the through hole groove and is connected with a supporting mechanism at the top;
the supporting mechanism comprises a positioning pin rod and a C-shaped supporting rod, the positioning pin rod and the C-shaped supporting rod are vertically arranged at the top end of the fixing rod, a positioning pin hole is formed in the lower end of the C-shaped supporting rod, the positioning pin hole is connected with the positioning pin rod in an inserting mode and is connected with the positioning pin rod in a rotating mode, and the top end of the C-shaped supporting rod is connected with a lifting head.
According to the technical scheme, when the agricultural machine needs to be maintained, the agricultural machine is moved to the maintenance lane; in the maintenance process, when the heavy component needs to be disassembled, the lifting head is connected with the heavy component, then water in the reservoir is injected into the buoyancy water pool through the water inlet pump, when the water surface rises, the lifting head is fixed, so that the volume of the buoyancy tank immersed in the water is increased, the buoyancy is correspondingly increased, and when the buoyancy is increased to a certain degree, the heavy component is lifted; after the lifting process is completed, the heavy component can be rotated through the rotation of the C-shaped supporting rod, so that the heavy component can be moved to a corresponding position for maintenance operation; from the above, it can be seen that, in the lifting process, the force to the heavy component is softer, so that the component is not damaged, and meanwhile, the device has a simple structure and low manufacturing cost, so that the device is easy to popularize and is practical.
Preferably, the lifting head comprises a horizontally arranged conversion shaft connected with the top end of the C-shaped support rod, the conversion shaft is rotatably connected with a lifting frame, a positioning bolt and a positioning insertion hole are arranged between the lifting frame and the conversion shaft, so that the lifting frame is vertically upward or downward, and when the lifting frame is vertically downward, the lifting frame is connected with a hoisting belt.
Through above-mentioned technical scheme, because lift up and can rotation each other between frame and the rotating shaft, consequently, can make through rotating to lift up the vertical up and vertical down of frame, and the fixing between these two can be accomplished through location bolt and location jack, when lifting up the vertical up of frame, can place the below of lifting up the frame at heavy part and accomplish and lift up, and when lifting up the vertical downwards of frame, can hoist through the heavy part of hoist and mount band team, the user can use through specific user demand.
Preferably, the guide rail is also provided with a guide block, and the buoyancy tank is provided with a guide groove in sliding connection with the guide block.
Through above-mentioned technical scheme, through the setting of guide block and guide way, further guarantee buoyancy case only can move in upper and lower direction to guarantee buoyancy case can not take place the slope at the motion in-process, and then make the motion of heavy part more stable.
Preferably, a conical hollow part is connected to the right lower part of the buoyancy tank.
Through the technical scheme, according to the Archimedes principle, the buoyancy and the depth have a certain relation, so that the buoyancy is concentrated at the central position of the buoyancy tank, the moment for enabling the buoyancy tank to turn on the side is reduced, and the movement of the buoyancy tank is more stable.
Preferably, a movable dovetail groove is formed in the top of the buoyancy tank and located right below the through hole groove, a movable sliding block is connected in the movable dovetail groove in a sliding mode, and the movable sliding block is fixedly connected with the fixing rod.
Through above-mentioned technical scheme, through the setting that removes the dovetail and remove the slider for heavy part can remove around the via hole groove, and in addition the rotation of C sex-linked strut pole makes the position scope between heavy expand, convenient to use more.
Preferably, the C-shaped support rod with be connected with the extension mechanism between the locating pin pole, the extension mechanism include with C-shaped support rod horizontally connected's extension section of thick bamboo, the extension section of thick bamboo includes the quad slit, the quad slit slides and is connected with the extension rod, the extension rod with locating pin pole fixed connection.
Through above-mentioned technical scheme, the position of raising the head can be adjusted to the extension mechanism, and then adapts to more application occasions, facilitates the use.
Preferably, the side edge of the C-shaped supporting rod is connected with a rotating handle.
Through above-mentioned technical scheme, through rotating the rotation of operation C shape bracing piece that the handle can be more convenient.
Preferably, the fixing rod is provided with a locking mechanism for realizing relative fixation between the fixing rod and the through hole groove.
Through above-mentioned technical scheme, locking structure can fix dead lever and via hole groove, prevents to move about unnecessarily because the fluctuation of water causes about when operating heavy type part.
Compared with the prior art, the utility model has the beneficial effects that:
(1) in the maintenance process, when the heavy component needs to be disassembled, the lifting head is connected with the heavy component, then water in the reservoir is injected into the buoyancy water pool through the water inlet pump, when the water surface rises, the lifting head is fixed, so that the volume of the buoyancy tank immersed in the water is increased, the buoyancy is correspondingly increased, when the buoyancy is increased to a certain degree, the heavy component can be lifted, and as can be seen from the above, in the lifting process, the force on the heavy component is softer, so that the component cannot be damaged, and meanwhile, the device is simple in structure and low in manufacturing cost, so that the device is easy to popularize and is practical;
(2) the arrangement of the guide groove, the guide block and the conical hollow part further ensures that the buoyancy tank can only move in the vertical direction, so that the buoyancy tank is prevented from inclining in the movement process, and the movement of heavy parts is more stable;
(3) the further arrangement of the lift-off head and the extension mechanism can enlarge the application range of the device, thereby having multifunctional properties and being convenient to use.
Drawings
FIG. 1 is a schematic view of the overall structure of a cross section of the present invention;
FIG. 2 is a schematic cross-sectional view of the buoyancy tank of the present invention;
FIG. 3 is a schematic view of a portion of the enlarged structure of A in FIG. 2;
FIG. 4 is a schematic cross-sectional view of the elongation mechanism of the present invention taken perpendicular to the axis;
FIG. 5 is a schematic top view of the buoyancy cell of the present invention.
In the figure: 1. a support platform; 2. repairing the lane; 3. maintaining the groove; 4. a buoyancy pool; 5. a reservoir; 6. a water inlet pump; 7. draining pump; 8. a guide rail; 9. a guide group; 10. a buoyancy tank; 11. fixing the rod; 12. a via hole groove; 13. positioning the pin rod; 14. a C-shaped support bar; 15. a positioning pin hole; 16. raising the head; 1601. a conversion shaft; 1602. lifting the frame; 1603. positioning a bolt; 1604. positioning the jack; 17. a hoisting belt; 18. a guide block; 19. a guide groove; 20. a tapered hollow portion; 21. moving the dovetail groove; 22. moving the slide block; 23. an elongated canister; 24. a square hole; 25. an extension rod; 26. rotating the handle; 27. and a locking mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an embodiment of the present invention is shown:
the utility model provides an agricultural machine maintains fixed platform, is provided with two maintenance lanes 2 of parallel arrangement including the supporting platform 1 that is located ground on the supporting platform 1, when needing to maintain agricultural machine, with agricultural machine remove to maintenance lane 2 on can. A maintenance groove 3 is arranged between the two maintenance lanes 2, and a buoyancy device is arranged below the supporting platform 1.
Buoyancy is including being located buoyancy pond 4 and cistern 5 of buoyancy below, be provided with between buoyancy pond 4 and cistern 5 to the intake pump 6 that the buoyancy pond 4 was drawn water and the drain pump 7 that draws water to cistern 5, the bottom in buoyancy pond 4 evenly is provided with the guide rail 8 that figure more than or equal to three, guide rail 8 and supporting platform 1 fixed connection just play the supporting role to supporting platform 1, guide rail 8 arranges and forms square or circular shape and goes on direction group 9 from top to bottom, and sliding connection has square or circular shape buoyancy case 10 in direction group 9, dead lever 11 is connected on buoyancy case 10 for hollow setting and its top, the center of maintenance groove 3 is provided with the via hole groove 12 parallel with maintenance groove 3, dead lever 11 passes hole groove 12 and is connected with supporting mechanism at the top.
The supporting mechanism comprises a positioning pin rod 13 and a C-shaped supporting rod 14 which are vertically arranged and positioned at the top end of the fixing rod 11, a positioning pin hole 15 is formed in the lower end of the C-shaped supporting rod 14, the positioning pin hole 15 is connected with the positioning pin rod 13 in an inserting and rotating mode, and the top end of the C-shaped supporting rod 14 is connected with a lifting head 16. The side of the C-shaped support bar 14 is connected with a turning handle 26. The rotation of the C-shaped support bar 14 can be more conveniently operated by rotating the handle 26.
The lift head 16 includes a horizontally disposed shift shaft 1601 connected to the top end of the C-shaped support rod 14. The conversion shaft 1601 is rotatably connected with a lifting frame 1602, a positioning bolt 1603 and a positioning insertion hole 1604 are arranged between the lifting frame 1602 and the conversion shaft 1601, so that the lifting frame 1602 faces upwards or downwards vertically, and when the lifting frame 1602 faces downwards vertically, the lifting frame 1602 is connected with a lifting belt 17. Because it can rotation each other to lift up between frame 1602 and the pivot, consequently, can make through rotating to lift up frame 1602 vertically upwards and vertically downwards, and the fixing between the two can be accomplished through location bolt 1603 and location jack 1604, when lifting up frame 1602 is vertical upwards, can place lifting up frame 1602 and accomplish lifting up in the below of heavy part, and when lifting up frame 1602 is vertical downwards, can hoist and mount through heavy part of hoisting belt 17 team, the user can use through specific user demand.
An extension mechanism is connected between the C-shaped support rod 14 and the positioning pin rod 13, the extension mechanism comprises an extension cylinder 23 horizontally connected with the C-shaped support rod 14, the extension cylinder 23 comprises a square hole 24, the square hole 24 is connected with an extension rod 25 in a sliding mode, and the extension rod 25 is fixedly connected with the positioning pin rod 13. The position of the lift-off head 16 can be adjusted by the extension mechanism, so that the device is suitable for more application occasions and is convenient to use.
The guide rail 8 is also provided with a guide block 18, and the buoyancy tank 10 is provided with a guide groove 19 which is connected with the guide block 18 in a sliding way. Through the setting of guide block 18 and guide way 19, further guarantee buoyancy case 10 can only move in the upper and lower direction to guarantee buoyancy case 10 can not take place to incline in the motion process, and then make the motion of heavy parts more stable.
A conical hollow portion 20 is connected directly below the buoyancy tank 10. According to the archimedes principle, the buoyancy has a certain relation with the depth, so that the buoyancy is concentrated at the central position of the buoyancy tank 10, the moment for enabling the buoyancy tank 10 to turn on one side is reduced, and the movement of the buoyancy tank 10 is more stable.
A movable dovetail groove 21 is arranged at the top of the buoyancy tank 10 and right below the through hole groove 12, a movable sliding block 22 is connected in the movable dovetail groove 21 in a sliding mode, and the movable sliding block 22 is fixedly connected with the fixed rod 11. Through the arrangement of the movable dovetail groove 21 and the movable sliding block 22, the heavy component can move back and forth along the through hole groove 12, and the rotation of the C-shaped support rod enlarges the position range of the heavy component, so that the heavy component is more convenient to use.
In addition, a locking mechanism 27 for realizing relative fixation between the fixing rod 11 and the via groove 12 is further arranged on the fixing rod 11. The locking structure can fix the fixing rod 11 and the via hole 12, and prevent unnecessary up-and-down movement caused by up-and-down fluctuation of water when the heavy type member is operated.
The use process of the device is as follows: a. in the maintenance process, when the heavy component needs to be disassembled, a lifting or hoisting mode is selected, and the extension mechanism is adjusted and the C-shaped support rod 14 is rotated, so that the lifting frame 1602 is connected with the heavy component at a proper position; b. then, water in the reservoir 5 is injected into the buoyancy pool 4 through the water inlet pump 6, when the water surface rises, the volume of the buoyancy tank 10 immersed in the water is increased due to the fixed lifting head 16, so that the buoyancy is correspondingly increased, and when the buoyancy is increased to a certain degree, the heavy parts are lifted; c. after the lifting process is completed, the heavy component can be rotated and moved by the rotation of the C-shaped support bar 14 and the sliding of the moving dovetail groove 21 and the moving slider 22, and thus moved to a corresponding position for maintenance operation. From the above, it can be seen that, in the lifting process, the force to the heavy component is softer, so that the component is not damaged, and meanwhile, the device has a simple structure and low manufacturing cost, so that the device is easy to popularize and is practical.
In conclusion, the beneficial effects of the utility model are as follows: (1) in the lifting process, the force to the heavy component is softer, so that the component cannot be damaged, and meanwhile, the device is simple in structure and low in manufacturing cost, so that the device is easy to popularize and practical; (2) the arrangement of the guide grooves 19, the guide blocks 18 and the tapered hollow parts 20 further ensures that the buoyancy tank 10 can only move in the up-and-down direction, so that the buoyancy tank 10 is ensured not to incline in the movement process, and the movement of heavy parts is more stable; (3) the further provision of the lift-off head 16 and the extension mechanism enables the range of use of the device to be extended, thereby providing a multi-functional nature for ease of use.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.
Claims (5)
1. The utility model provides an agricultural machine maintains fixed platform which characterized in that: the device comprises a supporting platform (1) positioned on the ground, wherein two parallel service lanes (2) are arranged on the supporting platform (1), a maintenance groove (3) is arranged between the two service lanes (2), and a buoyancy device is arranged below the supporting platform (1);
the buoyancy device comprises a buoyancy pool (4) and a reservoir (5) which are positioned below the supporting platform (1), wherein a water inlet pump (6) pumping water to the buoyancy pool (4) and a water discharge pump (7) pumping water to the reservoir (5) are arranged between the buoyancy pool (4) and the reservoir (5), guide rails (8) with the number more than or equal to three are uniformly arranged at the bottom of the buoyancy pool (4), the guide rails (8) are fixedly connected with the supporting platform (1) and play a supporting role on the supporting platform (1), the guide rails (8) are arranged to form a square or round guide group (9) which guides up and down, a square or round buoyancy tank (10) is connected in the guide group (9) in a sliding manner, the buoyancy tank (10) floats on the water surface of the buoyancy pool (4), the buoyancy tank (10) is arranged in a hollow manner, and the top end of the buoyancy tank (10) is connected with a fixing rod (11), a through hole groove (12) parallel to the maintenance groove (3) is formed in the center of the maintenance groove (3), and the fixing rod (11) penetrates through the through hole groove (12) and is connected with a supporting mechanism at the top;
the supporting mechanism comprises a positioning pin rod (13) and a C-shaped supporting rod (14), the positioning pin rod (13) and the C-shaped supporting rod are vertically arranged at the top end of the fixing rod (11), a positioning pin hole (15) is formed in the lower end of the C-shaped supporting rod (14), the positioning pin hole (15) is inserted into the positioning pin rod (13) and is connected with the positioning pin rod in a rotating mode, and the top end of the C-shaped supporting rod (14) is connected with a raising head (16);
the lifting head (16) comprises a horizontally arranged conversion shaft (1601) connected with the top end of the C-shaped support rod (14), the conversion shaft (1601) is rotatably connected with a lifting frame (1602), a positioning bolt (1603) and a positioning insertion hole (1604) which enable the lifting frame (1602) to vertically face upwards or vertically face downwards are arranged between the lifting frame (1602) and the conversion shaft (1601), and when the lifting frame (1602) faces downwards vertically, the lifting frame (1602) is connected with a hoisting belt (17);
the guide rail (8) is also provided with a guide block (18), and the buoyancy tank (10) is provided with a guide groove (19) in sliding connection with the guide block (18);
a conical hollow part (20) is connected under the buoyancy tank (10).
2. An agricultural machine maintenance fixed platform according to claim 1, wherein: the buoyancy tank is characterized in that a movable dovetail groove (21) is formed in the top of the buoyancy tank (10) and located under the through hole groove (12), a movable sliding block (22) is connected in the movable dovetail groove (21) in a sliding mode, and the movable sliding block (22) is fixedly connected with the fixing rod (11).
3. An agricultural machine maintenance fixed platform according to claim 1, wherein: c shape bracing piece (14) with be connected with the extension mechanism between locating pin pole (13), the extension mechanism include with C shape bracing piece (14) horizontally connect's an extension section of thick bamboo (23), an extension section of thick bamboo (23) includes quad slit (24), quad slit (24) slide and are connected with extension rod (25), extension rod (25) with locating pin pole (13) fixed connection.
4. An agricultural machine maintenance fixed platform according to claim 1, wherein: the side edge of the C-shaped supporting rod (14) is connected with a rotating handle (26).
5. An agricultural machine maintenance fixed platform according to claim 1, wherein: and a locking mechanism (27) for realizing the relative fixation between the fixing rod (11) and the through hole groove (12) is arranged on the fixing rod (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011026648.8A CN112092781B (en) | 2020-09-25 | 2020-09-25 | Agricultural machine maintenance fixed platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011026648.8A CN112092781B (en) | 2020-09-25 | 2020-09-25 | Agricultural machine maintenance fixed platform |
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| Publication Number | Publication Date |
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| CN112092781A CN112092781A (en) | 2020-12-18 |
| CN112092781B true CN112092781B (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011026648.8A Active CN112092781B (en) | 2020-09-25 | 2020-09-25 | Agricultural machine maintenance fixed platform |
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| CN (1) | CN112092781B (en) |
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| CN211496751U (en) * | 2020-01-14 | 2020-09-15 | 黄冬平 | Multifunctional lifting device for automobile maintenance |
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