CN109707969B - Quick-disassembly fixing base and disassembly and assembly method thereof - Google Patents
Quick-disassembly fixing base and disassembly and assembly method thereof Download PDFInfo
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- CN109707969B CN109707969B CN201910041033.3A CN201910041033A CN109707969B CN 109707969 B CN109707969 B CN 109707969B CN 201910041033 A CN201910041033 A CN 201910041033A CN 109707969 B CN109707969 B CN 109707969B
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The invention discloses a fixing base capable of being quickly disassembled and assembled and a disassembling and assembling method thereof, wherein the fixing base capable of being quickly disassembled and assembled comprises an upper base and a lower base; the upper base comprises an upper carrier plate, an upper positioning mechanism and a pressing part, wherein the upper positioning mechanism and the pressing part are arranged on the upper carrier plate, and a positioning gap is arranged between the pressing part and the upper carrier plate; the lower base comprises a downloading plate, a lower positioning mechanism arranged on the downloading plate, a driving device and two pressing plates, wherein the lower positioning mechanism is matched with the upper positioning mechanism and used for positioning the upper and lower plates, the driving device is used for driving the pressing plates to translate so as to enter or leave the positioning gap to be locked or separated with the pressing part, and the disassembling and assembling method is simple in operation and capable of rapidly completing the disassembly and assembly of the upper base and the lower base.
Description
Technical Field
The invention belongs to the technical field of quick assembly and disassembly devices, and particularly relates to a quick assembly and disassembly fixing base and an assembly and disassembly method thereof.
Background
Generally, the equipment base is fixed on the platform through a plurality of groups of bolts, the installation and dismantling processes of the equipment are required to be completed through direct field operation of personnel, and the workload is large.
Under some special working conditions, the equipment is required to be quickly installed and dismantled, even after the equipment is installed once, personnel cannot or is difficult to directly enter a site to carry out equipment dismantling work, equipment dismantling and reinstallation can only be carried out by means of auxiliary tools such as a remote operation manipulator when the equipment is required to be dismantled, a conventional equipment base fixing mode cannot be used, for example, a small-sized mechanism or a mechanical device is installed above the fixed base in a bolt or welding mode, the lower bottom surface of the fixed base is fixedly arranged on an operation platform, and when the small-sized mechanism or the mechanical device fails, only the device and the fixed base can be taken away for maintenance or a new set of equipment and the fixed base can be directly replaced, so that a large amount of workload is caused, and inconvenience in use on work is brought.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a quick-disassembly fixing base which has the main function advantage of quick disassembly.
Another object of the present invention is to provide a method for assembling and disassembling a quick-assembling fixing base.
The invention is realized by the following technical scheme:
a fixing base capable of being quickly disassembled and assembled comprises an upper base and a lower base;
The upper base comprises an upper carrier plate, an upper positioning mechanism and a pressing part, wherein the upper positioning mechanism and the pressing part are arranged on the upper carrier plate, and a positioning gap is arranged between the pressing part and the upper carrier plate;
The lower base comprises a downloading plate, a lower positioning mechanism arranged on the downloading plate, a driving device and two pressing plates, wherein the lower positioning mechanism is matched with the upper positioning mechanism and used for positioning the upper loading plate and the downloading plate, and the driving device is used for driving the pressing plates to translate so as to enter or be far away from the positioning gap to realize locking or separation with the pressing part.
In the above technical scheme, the compressing part comprises a plurality of compressing rods, the compressing rods are arranged on the upper carrier plate at intervals, and the compressing ends of the compressing rods and the upper carrier plate form a positioning gap for locking the pressing plate.
In the above technical scheme, the compressing end of the compressing rod is provided with a compressing roller, and the compressing roller and the upper carrier plate form the positioning gap therebetween for locking the pressing plate.
In the above technical scheme, one side of the pressing plate, which is used for being close to the pressing part, is provided with an inclined plane for being pressed by the pressing roller.
In the above technical scheme, the compressing part comprises a plurality of stoppers, and the stoppers are provided with limiting grooves for locking the pressing plate.
In the above technical scheme, the driving device comprises a lead screw and a guide mechanism, wherein the lead screw is arranged on the downloading plate and used for driving the pressing plate to translate, the guide mechanism comprises two guide rails arranged at intervals, the guide rails are arranged on the downloading plate, and two ends of the pressing plate are respectively and vertically arranged on the two guide rails.
In the above technical scheme, one end of the screw is positioned on the download plate through the screw support, and the other end of the screw is provided with a hand wheel.
In the above technical scheme, the upper positioning mechanism comprises a plurality of upper positioning blocks, the upper positioning blocks are arranged on the upper carrier plate, the lower positioning mechanism comprises a plurality of lower positioning blocks, the lower positioning blocks are arranged on the lower carrier plate, the lower positioning blocks are of V-shaped groove structures, and the upper positioning blocks are of V-shaped protruding structures and are used for being positioned on the lower positioning blocks.
In the above technical scheme, a plurality of upper positioning blocks are transversely and longitudinally staggered on the upper carrier plate, the upper positioning blocks are uniformly distributed and transversely arranged at four corners of the upper carrier plate, and the upper positioning blocks are uniformly distributed and longitudinally arranged on the side edges of the upper carrier plate; the plurality of lower positioning blocks are transversely and longitudinally staggered on the downloading plate, the lower positioning blocks are uniformly distributed and transversely arranged at four corners of the downloading plate, and the lower positioning blocks are uniformly distributed and longitudinally arranged on the side edges of the downloading plate.
In the technical scheme, a plurality of cylindrical guide pins are diagonally arranged on the downloading plate, and a plurality of positioning holes matched with the cylindrical guide pins one by one are formed in the uploading plate.
In the technical scheme, through holes are formed in the length directions of the lower positioning block and the upper positioning block.
A disassembly and assembly method of a quick disassembly and assembly fixing base comprises the following steps:
1. the installation steps are as follows:
1) Positioning a lower base, placing an upper carrier plate on a lower carrier plate, and butting an upper positioning block with a lower positioning block;
2) Rotating the hand wheel to enable the pressing plate to be pressed with the pressing part;
2. The disassembly steps are as follows:
1) Rotating the hand wheel to enable the side surface of the pressing plate to be far away from the pressing part;
2) And the upper base is detached from the lower base.
The invention has the advantages and beneficial effects that:
1. the base fixing device capable of being quickly disassembled and assembled adopts the upper base, the lower base and the upper base and the lower base which can be conveniently disassembled and assembled, and is simple in structure and convenient to use.
2. According to the quick-disassembly base fixing device, the cylindrical guide pins are adopted for primary positioning, and the upper positioning blocks and the lower positioning blocks are adopted for secondary positioning, so that accurate positioning of the upper base on the lower base can be conveniently and rapidly realized.
3. According to the base fixing device capable of being quickly disassembled and assembled, the horizontal locking and positioning between the upper base and the lower base can be completed by only rotating the hand wheel on the screw rod, so that compared with a traditional bolt fixing mode, the operation is greatly simplified, and the quick disassembly and assembly of the base can be conveniently and rapidly realized.
4. The operation method of the base fixing device capable of being quickly disassembled and assembled is convenient to use, the disassembly and assembly between the upper base and the lower base can be realized through simple operation, and the disassembly and assembly between the upper base and the lower base can be conveniently finished in a remote control mode.
Drawings
Fig. 1 is a schematic structural view of a lower base of a quick-detachable base fixing device according to the present invention.
Fig. 2 is a schematic structural view of an upper base of the quick-detachable base fixing device of the present invention.
Fig. 3 is a schematic structural view of a quick-detachable base fixing device according to the present invention.
Wherein:
1: uploading a plate, 2: download board, 31: upper positioning block, 32: lower locating piece, 33: platen, 34: compaction roller, 35: driving device 351: lead screw, 352: lead screw nut 353: screw support, 354: hand wheel, 36: guide mechanism, 361: guide rail, 362: slider, 4: cylindrical guide pin, 5: and positioning holes.
Other relevant drawings may be made by those of ordinary skill in the art from the above figures without undue burden.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the following description of the present invention will be given with reference to fig. 1 to 3 and the specific embodiments.
Example 1
A fixing base capable of being quickly disassembled and assembled comprises an upper base and a lower base;
The upper base comprises an upper carrier plate 1, an upper positioning mechanism and a pressing part, wherein the upper positioning mechanism and the pressing part are arranged on the upper carrier plate 1, and a positioning gap is formed between the pressing part and the upper carrier plate 1;
The lower base comprises a lower support plate 2, a lower positioning mechanism arranged on the lower support plate 2, a driving device 35 and two pressing plates 33, wherein the lower positioning mechanism is matched with the upper positioning mechanism and used for positioning the upper support plate 1 and the lower support plate 2, the driving device 35 is used for driving the pressing plates 33 to translate so as to enter or be far away from a positioning gap to realize locking or separation with a pressing part, when the pressing plates 33 enter the positioning gap, the pressing plates 33 are locked with the pressing part, and when the pressing plates 33 are far away from the positioning gap, the pressing plates 33 are separated from the pressing part.
The quick-disassembly base fixing device adopts the upper carrier plate 11, the lower carrier plate 22, the positioning mechanism, the driving device 35 and the pressing plate 33, so that the upper base and the lower base can be conveniently disassembled, and the quick-disassembly base fixing device is simple in structure and convenient to use.
Example 2
Based on embodiment 1, the pressing part includes a plurality of pressing bars, the pressing bars are arranged on the upper carrier plate 1 at intervals, a positioning gap is formed between the pressing ends of the pressing bars and the upper carrier plate 1 for locking the pressing plate 33, preferably, the pressing part includes 4 pressing bars, the 4 pressing bars are respectively arranged at corresponding positions of four corners of the upper carrier plate 1, when the pressing bars and the pressing plate 33 are required to be locked, the pressing plate 33 translates to lock the side surface of the pressing plate 33 with the locking bars, and when the pressing bars and the pressing plate 33 are required to be released, the pressing plate 33 translates to separate the side surface of the pressing plate 33 from the locking bars.
Preferably, in order to facilitate locking and separating of the pressing rod and the pressing plate 33, a pressing roller 34 is arranged at the pressing end of the pressing rod, a positioning gap is formed between the pressing roller 34 and the upper carrier plate 1 for locking the pressing plate 33, friction force between the pressing rod and the pressing plate 33 is reduced, and relative movement between the pressing plate 33 and the pressing rod is facilitated.
Preferably, a bevel is arranged on one side of the pressing plate 33, which is close to the pressing part, for pressing with the pressing roller 34, so that the pressing plate 33 and the pressing roller 34 can move relatively conveniently, and the pressing plate 33 and the pressing roller 34 can be pressed further.
Or preferably, the pressing part comprises a plurality of stoppers, a limit groove is formed in each stopper for locking the pressing plate 33, when the stoppers and the pressing plate 33 are required to be locked, the pressing plate 33 is locked in the limit groove by the translational pressing plate 33, and when the stoppers and the pressing plate 33 are required to be separated, the pressing plate 33 is separated from the limit groove by the translational pressing plate 33.
Example 3
Based on embodiment 2, the driving device 35 includes a lead screw 351, two lead screw nuts 352, two lead screw supports 353 and a guiding mechanism 36, the lead screw 351 is positioned on the downloading plate 2 through the lead screw supports 353, a pressing plate 33 is fixedly installed on each lead screw nut 352 for driving the pressing plate 33 to press or loosen the pressing roller 34, wherein both ends of the lead screw 351 are provided with the lead screw supports 353 for limiting on the downloading plate 2, one end of the lead screw 351 is positioned on the downloading plate 2 through the lead screw supports 353, the other end of the lead screw 351 passes through the lead screw supports 353 and is provided with a hand wheel 354, and the lead screw 351 can be a bidirectional trapezoidal lead screw.
In order to further guide the pressing plate 33 to move along the lead screw 351, the guide mechanism 36 comprises two guide rails 361 arranged at intervals and four sliding blocks 362, each guide rail 361 is provided with two sliding blocks 362, the lead screw nut 352, the lead screw 351 and the lead screw support 353 are arranged on the downloading plate 2 between the two guide rails 361, two ends of the pressing plate 33 are respectively and vertically arranged on the two guide rails 361 through the sliding blocks 362, wherein the four corners of the upper plate 1 are respectively provided with a pressing roller 34, the pressing roller 34 is arranged on the inner side of the upper positioning block 31 and is used for pressing with the side face of the pressing plate 33, the pressing plate 33 is convenient to be pressed by the pressing plate and is pressed by the pressing roller, the pressing plate 33 moves along the lead screw 351, when the pressing plate 33 is close to the pressing roller 34, the side face of the pressing plate 33 is contacted with the pressing roller 34 and gradually presses the pressing plate 33 and the pressing roller 34 along with the rotation of the hand wheel 354, when the pressing plate 33 is pressed by the pressing roller 34, the lead screw 351 stops working, the pressing roller 34 and the pressing plate 33 are kept in a pressing state, and the whole locking process can be realized only by rotating the hand wheel 354; when the upper plate 1 and the lower plate 2 need to be dismantled, the hand wheel 354 is reversely rotated, the pressing plate 33 is far away from the pressing roller 34, the horizontal disassembly of the upper plate 1 and the lower plate 2 can be realized, and in the disassembly process, if the environment is inconvenient to manually disassemble, the remote operation manipulator can be directly adopted to realize the disassembly and the assembly of the upper plate 1 and the lower plate 2.
Preferably, a mechanical limiting block can be arranged on the screw rod, and when the pressing plate touches the mechanical limiting block, the hand wheel stops rotating so as to realize the positioning of the pressing plate on the screw rod.
According to the quick-disassembly base fixing device, the driving device is adopted, the horizontal locking and positioning between the upper carrier plate 1 and the lower carrier plate 2 can be completed only by rotating the hand wheel 354 on the screw rod 351, and compared with a traditional bolt fixing mode, the quick-disassembly base fixing device is greatly simplified in operation and can be used for conveniently realizing quick disassembly of the base.
Example 4
Based on embodiment 3, a plurality of cylindrical guide pins 4 are diagonally arranged on the downloading plate 2, a plurality of positioning holes 5 which are matched with the cylindrical guide pins 4 one by one are arranged on the uploading plate 1, the positioning holes 5 are inserted through the cylindrical guide pins 4, the up-and-down positioning of the uploading plate 1 and the downloading plate 2 can be realized, the horizontal deflection of the uploading plate 1 and the downloading plate 2 can be prevented, the up-and-down positioning of the uploading plate 1 and the downloading plate 2 can be ensured, and one-time coarse positioning is completed.
Further, a plurality of upper positioning blocks 31 are transversely and longitudinally staggered on the upper carrier plate 1, the upper positioning blocks 31 are uniformly distributed and transversely arranged at four corners of the upper carrier plate, the upper positioning blocks 31 are uniformly distributed and longitudinally arranged on the side edges of the upper carrier plate, a plurality of lower positioning blocks 32 are transversely and longitudinally staggered on the lower carrier plate 2, the lower positioning blocks are uniformly distributed and transversely arranged at four corners of the lower carrier plate, the lower positioning blocks are uniformly distributed and longitudinally arranged on the side edges of the lower carrier plate, the transversely arranged upper positioning blocks are matched with the transversely arranged lower positioning blocks, the longitudinally arranged upper positioning blocks are matched with the longitudinally arranged lower positioning blocks, the lower positioning blocks 32 are of V-shaped groove structures, the upper positioning blocks 31 are of V-shaped bulge structures and are used for being positioned on the lower positioning blocks 32, and the upper positioning blocks are transversely and longitudinally arranged at intervals, so that the horizontal direction of the upper carrier plate 1 and the lower carrier plate 2 can be ensured, and the horizontal direction of the upper carrier plate 1 can be prevented from moving out along the lower carrier plate 2 in the working process.
Preferably, through holes are formed in the length directions of the lower positioning block and the upper positioning block, bolts are installed in the through holes, the upper positioning block is positioned on the upper loading plate through the bolts, and the lower positioning block is positioned on the lower loading plate.
The specific implementation mode is as follows: when a base is required to be installed, the downloading plate 2 is fixedly arranged, then the upper supporting plate 1 is placed on the downloading plate 2, the lower positioning blocks 32 and the upper positioning blocks 31 are arranged in one-to-one correspondence, the cylindrical guide pins 4 are inserted into the positioning holes 5, the hand wheels 354 are rotated, the two pressing plates 33 move along the lead screws 351 in opposite directions, the sliding blocks 362 move along the tracks, the side surfaces of the pressing plates 33 are pressed with the pressing rollers 34, the hand wheels 354 are stopped, and the positioning of the upper supporting plate 1 and the downloading plate 2 is completed; when the base needs to be disassembled, the two pressing plates 33 are rotated manually in the opposite direction, and move relatively along the lead screw 351, so that the pressing plates 33 are separated from the pressing rollers 34, and when the two pressing plates 33 are close to each other, the hand wheel 354 stops rotating, the upper carrier plate 1 is removed from the lower carrier plate 2 through the manipulator, and the disassembly of the base is completed.
According to the base fixing device capable of being quickly assembled and disassembled, the horizontal locking and positioning between the upper plate 1 and the lower plate 2 can be completed by only rotating the hand wheel 354 on the screw rod 351, and compared with a traditional bolt fixing mode, the base fixing device capable of being quickly assembled and disassembled is greatly simplified in operation and capable of being quickly and conveniently assembled and disassembled.
Example 5
A disassembly and assembly method of a quick disassembly and assembly fixing base comprises the following steps:
1. the installation steps are as follows:
1) Positioning the downloading plate 2, placing the uploading plate 1 on the downloading plate 2, and butting the upper positioning block 31 with the lower positioning block 32;
2) Rotating the hand wheel 354 to compress the pressure plate 33 and the compressing roller 34;
2. The disassembly steps are as follows:
1) Rotating the hand wheel 354 to move the side of the platen 33 away from the pinch roller 34;
2) The upper carrier plate 1 is detached from the lower carrier plate 2.
The operation method of the base fixing device capable of being quickly disassembled and assembled is convenient to use, the disassembly and assembly between the upper base and the lower base can be achieved through the operation is simple, namely, the disassembly and assembly between the upper base and the lower base can be achieved through the combination of a remote control mode, and the disassembly and assembly between the upper base and the lower base can be achieved through the operation of the hand wheel 354 of the remote operation manipulator.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature's illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation. The device may be otherwise positioned (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The foregoing has described exemplary embodiments of the invention, it being understood that any simple variations, modifications, or other equivalent arrangements which would not unduly obscure the invention may be made by those skilled in the art without departing from the spirit of the invention.
Claims (8)
1. The quick-disassembly fixing base is characterized by comprising an upper base and a lower base;
The upper base comprises an upper carrier plate, an upper positioning mechanism and a pressing part, wherein the upper positioning mechanism and the pressing part are arranged on the upper carrier plate, and a positioning gap is arranged between the pressing part and the upper carrier plate;
The lower base include the download board, set up lower positioning mechanism, drive arrangement and two clamp plates on the download board, lower positioning mechanism with last positioning mechanism match and set up in order to be used for the location go up carrier plate and download board, go up base and lower base and adopt the cylinder guide pin to carry out once location, adopt last locating piece and lower locating piece to carry out the secondary location, drive arrangement be used for driving the clamp plate translation in order to be used for getting into or keep away from the location clearance realize with the clamping part locking or separation, the clamping part include a plurality of hold-down bars, the hold-down bars interval set up on the upper carrier plate, hold-down bars hold-down end with the upper carrier plate between form the location clearance in order to be used for locking the clamp plate, the hold-down bars hold-down end be provided with the pinch roller, the pinch roller with the upper carrier plate between form the location clearance in order to be used for locking the clamp plate, one side of clamp plate be used for being close to the clamp plate hold-down bars be provided with the inclined plane in order to be used for with the upper carrier plate hold-down mechanism, the locating piece hold-down bars include the setting up roller down mechanism down on the upper carrier plate.
2. The quick assembly disassembly fixing base of claim 1, wherein the pressing portion comprises a plurality of stoppers, and the stoppers are provided with limiting grooves for locking the pressing plate.
3. The quick assembly disassembly's unable adjustment base of claim 1, wherein, drive arrangement include lead screw and guiding mechanism, the lead screw set up on the download board be used for driving clamp plate translation, guiding mechanism include two guide rails that the interval set up, the guide rail setting be in the download board, the both ends of clamp plate respectively perpendicular setting be in two the guide rail.
4. A quick detachable fixing base according to claim 3, wherein one end of the screw is positioned on the download plate through the screw support, and the other end is provided with a hand wheel.
5. The quick assembly disassembly base of claim 1, wherein the lower positioning block is of a V-shaped groove structure, and the upper positioning block is of a V-shaped protrusion structure for positioning on the lower positioning block.
6. The quick detachable fixing base according to claim 5, wherein a plurality of the upper positioning blocks are transversely and longitudinally staggered on the upper carrier plate, a part of the upper positioning blocks are transversely and uniformly arranged at four corners of the upper carrier plate, and a part of the upper positioning blocks are longitudinally and uniformly arranged at the side edges of the upper carrier plate; the plurality of lower positioning blocks are transversely and longitudinally staggered on the downloading plate, part of the lower positioning blocks are transversely and uniformly distributed at four corners of the downloading plate, and part of the lower positioning blocks are longitudinally and uniformly distributed on the side edges of the downloading plate.
7. The quick detachable fixing base according to claim 1, wherein a plurality of cylindrical guide pins are diagonally arranged on the downloading plate, and a plurality of positioning holes which are matched with the cylindrical guide pins one by one are arranged on the uploading plate.
8. A method of assembling and disassembling a quick-release base according to claim 4, comprising the steps of:
1. the installation steps are as follows:
1) Positioning a lower base, placing an upper carrier plate on a lower carrier plate, and butting an upper positioning block with a lower positioning block;
2) Rotating the hand wheel to enable the pressing plate to be pressed with the pressing part;
2. The disassembly steps are as follows:
1) Rotating the hand wheel to enable the side surface of the pressing plate to be far away from the pressing part;
2) And the upper base is detached from the lower base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910041033.3A CN109707969B (en) | 2019-01-16 | 2019-01-16 | Quick-disassembly fixing base and disassembly and assembly method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910041033.3A CN109707969B (en) | 2019-01-16 | 2019-01-16 | Quick-disassembly fixing base and disassembly and assembly method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN109707969A CN109707969A (en) | 2019-05-03 |
| CN109707969B true CN109707969B (en) | 2024-04-19 |
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| CN201910041033.3A Active CN109707969B (en) | 2019-01-16 | 2019-01-16 | Quick-disassembly fixing base and disassembly and assembly method thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113602546A (en) * | 2021-05-25 | 2021-11-05 | 展一智能科技(东台)有限公司 | Automatic guide positioning changes spray gun device |
| CN113649802B (en) * | 2021-10-20 | 2022-01-18 | 成都宏明电子股份有限公司 | Filter fixing and locking device capable of being locked in multiple directions |
| CN114408156B (en) * | 2022-04-01 | 2022-07-08 | 沃飞长空科技(成都)有限公司 | Dismounting structure, dismounting method and unmanned aerial vehicle |
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| CN109707969A (en) | 2019-05-03 |
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