CN111691440B - Displacement amplification device for slope early warning - Google Patents
Displacement amplification device for slope early warning Download PDFInfo
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- CN111691440B CN111691440B CN202010583246.1A CN202010583246A CN111691440B CN 111691440 B CN111691440 B CN 111691440B CN 202010583246 A CN202010583246 A CN 202010583246A CN 111691440 B CN111691440 B CN 111691440B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/10—Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
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- Environmental & Geological Engineering (AREA)
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- Business, Economics & Management (AREA)
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention relates to a displacement amplification device, in particular to a displacement amplification device for slope early warning. The displacement amplifying device for the slope early warning can reflect the displacement of the slope in time. A displacement amplification device for slope early warning comprises a frame body, a first mounting block, a first cylinder body, a first piston, a first push rod, a primary amplification device, a second cylinder body, an air pipe, a second piston and the like; the middle parts of the upper side and the lower side in the frame body are respectively provided with a first mounting block, a first cylinder body is mounted between the right sides of the upper side and the lower side mounting blocks, a first piston is arranged in the first cylinder body, a first push rod is mounted in the middle of the right side of the first piston, and the first push rod penetrates through the right wall of the first cylinder body. When the side slope is displaced, the third amplification effect is realized, so that people can know the displacement of the side slope in time and take corresponding protection measures in time.
Description
Technical Field
The invention relates to a displacement amplification device, in particular to a displacement amplification device for slope early warning.
Background
In the bauxite loess geology side slope landslide early warning device of mechanical type, need enlarge the displacement of side slope, present enlarged mode can only carry out preliminary enlargement, only can the displacement distance at the side slope come out of the obvious reaction when the critical period soon, so when knowing that the landslide is about to take place, the time of making the preparation is just less, loss of property is bigger, the landslide takes place has a lot of uncertain factors simultaneously, if can not in time reflect side slope department and taken place the displacement, so just gone the early warning effect.
Disclosure of Invention
In order to overcome the problem that the slope displacement distance of the existing bauxite loess geological slope landslide early warning device needs to be reflected by moving a longer distance, the early warning device has the technical problems of: the displacement amplifying device for the slope early warning can reflect the displacement of the slope in time.
The technical scheme is as follows: a displacement amplification device for slope early warning comprises a frame body, a first installation block, a first cylinder body, a first piston, a first push rod, a first-stage amplification device, a second cylinder body, an air pipe, a second piston, a second push rod, a second-stage amplification device, a second installation block, a bearing seat, a rotating shaft, a rotating handle and a fixing device, wherein the first installation block is arranged in the middle of the upper side and the lower side in the frame body, the first cylinder body is arranged between the right sides of the installation blocks on the upper side and the lower side, the first piston is arranged in the first cylinder body, the first push rod is arranged in the middle of the right side of the first piston, penetrates through the right wall of the first cylinder body, the lower part of the right side of the first cylinder body is connected with the first-stage amplification device, the right end of the first push rod is connected with the first-stage amplification device, the second cylinder body is arranged between the left sides of the first installation blocks on the upper side and the lower side, the upper side and the lower side of the left part of the first cylinder body are connected with the air pipe between the upper and the lower side and the lower part of the left part of the second cylinder body, the trachea is with first cylinder body and second cylinder body intercommunication, be equipped with the second piston in the second cylinder body, second piston left side mid-mounting has the second push rod, the second push rod passes second cylinder body left wall, second cylinder body left side is connected with the second grade amplification device, the framework bottom left and right sides all is equipped with the second installation piece, second installation piece middle part all opens has the third through-hole, the framework bottom left and right sides all embedded bearing frame that is equipped with, all be equipped with the pivot in the bearing frame, the turning handle is installed at the pivot top, the pivot is in the third through-hole, fixing device is installed to the pivot bottom.
Further, one-level amplification device is including the rack, the connecting block, sector gear, the head rod, first gyro wheel and first stainless steel wire rope, first push rod right-hand member is connected with the rack, first cylinder body right side lower part is equipped with the connecting block, sector gear is installed to connecting block right part rotary type, sector gear and rack toothing, the sector gear bottom is equipped with the head rod, framework right side lower part is opened has first through-hole, both sides all are equipped with first gyro wheel about in the first through-hole, the head rod bottom is connected with first stainless steel wire rope, first stainless steel wire rope passes first through-hole, first stainless steel wire rope is between the first gyro wheel of both sides from top to bottom, the first stainless steel wire rope other end is connected on the fixing device in the side slope early warning device.
Further, the second-stage amplifying device comprises a second roller and a first fixed pulley, the second fixed pulley, a third roller and a second stainless steel wire rope, the second roller is installed at the left end of the second push rod, the first fixed pulleys are installed on the upper portion and the lower portion of the left side of the second cylinder body, the second roller is located between the first fixed pulleys on the upper side and the lower side, the second fixed pulley is installed on the left side of the top in the frame body, a second through hole is formed in the upper portion of the left side of the frame body, the third roller is installed on the upper portion and the lower portion of the inner left wall of the second through hole, the second stainless steel wire rope bypasses the first fixed pulleys on the lower portion, the second stainless steel wire rope bypasses the second roller, the second stainless steel wire rope bypasses the first fixed pulleys on the upper portion, the second stainless steel wire rope bypasses the second fixed pulleys, the second stainless steel wire rope penetrates through hole, and the other end of the second stainless steel wire rope is connected to the bottom end of a swinging rod in the slope early warning device.
Further, fixing device is including toper piece, third installation piece, second connecting rod, fly leaf and slider, and the toper piece is installed to the pivot bottom, and toper piece bottom is equipped with the third installation piece, and the equal rotary type in third installation piece left and right sides is equipped with the second connecting rod, and open the inboard lower part of fly leaf has the spout, and the spout internal sliding type is connected with the slider, and the slider of the left and right sides is connected with the second connecting rod outer end rotary type of the left and right sides respectively, and the fly leaf bottom rotary type of the left and right sides is connected.
Further, still including rotating rod, concave piece and cardboard, the equal rotary type in left and right sides lower part in the framework is equipped with the rotating rod, and the rotating rod other end is connected with concave piece, and concave piece card is at the turning handle top, and the left and right sides lower part all is equipped with the cardboard in the framework, cardboard and rotating rod cooperation.
The invention has the following advantages: when the side slope is displaced, the distance of the first push rod moving leftwards is faster and farther through the characteristic that the distance from the top of the sector gear to the rotating connection point is longer than the distance from the bottom end of the first connecting rod to the rotating connection point, first amplification is achieved, then the first cylinder body is larger than the second cylinder body, the second push rod can move leftwards faster and achieve second amplification, and in addition, the left part and the right part of the second stainless steel wire rope are pulled leftwards, so that the second stainless steel wire rope needs to be folded by double length, the effect of third amplification is achieved, people can know the displacement of the side slope in time, and corresponding protective measures are made in time.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic front view of a first-stage amplifying device according to the present invention.
Fig. 3 is a schematic front view of a two-stage amplifying device according to the present invention.
Fig. 4 is a front view of the fixing device of the present invention.
Description of reference numerals: 1 frame body, 2 first mounting block, 3 first cylinder body, 4 first piston, 5 first push rod, 6 first amplifying device, 61 rack, 62 connecting block, 63 sector gear, 64 first connecting rod, 65 first through hole, 66 first roller, 67 first stainless steel wire rope, 7 second cylinder body, 8 air pipe, 9 second piston, 10 second push rod, 11 second amplifying device, 111 second roller, 112 first fixed pulley, 113 second fixed pulley, 114 second through hole, 115 third roller, 116 second stainless steel wire rope, 12 second mounting block, 13 third through hole, 14 bearing seat, 15 rotating shaft, 16 rotating handle, 17 fixing device, 171 conical block, 172 third mounting block, 173 second connecting rod, movable plate 174, 175 sliding groove, 176 sliding block, 18 rotating rod, 19 concave block, 20 catch plate.
Detailed Description
Reference herein to an embodiment means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Example 1
A displacement amplification device for slope early warning is disclosed, as shown in figure 1, and comprises a frame body 1, a first mounting block 2, a first cylinder body 3, a first piston 4, a first push rod 5, a first-stage amplification device 6, a second cylinder body 7, an air pipe 8, a second piston 9, a second push rod 10, a second-stage amplification device 11, a second mounting block 12, a bearing seat 14, a rotating shaft 15, a rotating handle 16 and a fixing device 17, wherein the middle parts of the upper side and the lower side in the frame body 1 are respectively provided with the first mounting block 2, the first cylinder body 3 is arranged between the right sides of the mounting blocks on the upper side and the lower side, the first piston 4 is arranged in the first cylinder body 3, the first push rod 5 is arranged in the middle part of the right side of the first piston 4, the first push rod 5 penetrates through the right wall of the first cylinder body 3, the lower part of the right side of the first cylinder body 3 is connected with the first-stage amplification device 6, the second cylinder body 7 is arranged between the left sides of the first mounting blocks 2 on the upper side and the lower side, the upper and lower both sides in first cylinder body 3 left part and the upper and lower two in the left side of second cylinder body 7 are connected with trachea 8 between, trachea 8 is with first cylinder body 3 and second cylinder body 7 intercommunication, be equipped with second piston 9 in the second cylinder body 7, second piston 9 left side mid-mounting has second push rod 10, second push rod 10 passes second cylinder body 7 left wall, second cylinder body 7 left side is connected with second grade amplification device 11, the framework 1 bottom left and right sides all is equipped with second installation piece 12, second installation piece 12 middle part all has opened third through hole 13, framework 1 bottom left and right sides all embedded bearing frame 14 that is equipped with, all be equipped with pivot 15 in the bearing frame 14, pivot 15 top is installed and is changeed handle 16, pivot 15 is in third through hole 13, fixing device 17 is installed to pivot 15 bottom.
After the equipment is placed at the top of a side slope, a fixing device 17 and a second mounting block 12 are inserted into soil on the side slope, then a rotating handle 16 is rotated to drive a rotating shaft 15 to rotate in a bearing seat 14, the rotating shaft 15 is rotated to drive the fixing device 17 to rotate, so that the equipment is further fixed at the top of the side slope, when the fixing device 17 in the early warning device is displaced, a first-stage amplifying device 6 is triggered to work, the first-stage amplifying device 6 drives a first push rod 5 to move leftwards, a first piston 4 is pushed to move leftwards in a first cylinder body 3, a second piston 9 is pushed to move leftwards in a second cylinder body 7 through an air pipe 8, a second push rod 10 is made to move leftwards, a second-stage amplifying device 11 is triggered to start working, the second-stage amplifying device 11 drives the bottom end of a swing rod in the side slope early warning device to swing rightwards, so that the upper part of the swing rod in the side slope early warning device swings leftwards, the oscillating rod and the mirror in the slope early warning device are erected. The fixing device 17 in the early warning device is slightly displaced, and the situation can be clearly known after the first-stage amplifying device 6 and the second-stage amplifying device 11 are amplified.
Example 2
On the basis of embodiment 1, as shown in fig. 2, the primary amplification device 6 comprises a rack 61, a connecting block 62 and a sector gear 63, first connecting rod 64, first gyro wheel 66 and first stainless steel wire rope 67, 5 right-hand members of first push rod are connected with rack 61, 3 right side lower parts of first cylinder body are equipped with connecting block 62, sector gear 63 is installed to connecting block 62 right part rotary type, sector gear 63 and rack 61 meshing, sector gear 63 bottom is equipped with first connecting rod 64, 1 right side lower part of framework is opened has first through-hole 65, both sides all are equipped with first gyro wheel 66 about in the first through-hole 65, first connecting rod 64 bottom is connected with first stainless steel wire rope 67, first stainless steel wire rope 67 passes first through-hole 65, first stainless steel wire rope 67 is between the first gyro wheel 66 of both sides about, the other end of first stainless steel wire rope 67 is connected on fixing device 17 in the side slope early warning device.
When the fixing device 17 in the early warning device is displaced, the first stainless steel wire rope 67 is pulled rightwards, the sector gear 63 is driven to rotate anticlockwise through the first connecting rod 64, and the sector gear 63 rotates anticlockwise to drive the rack 61 to move leftwards, so that the first push rod 5 is driven to move leftwards. Since the top of the sector gear 63 is farther away from the rotation connection point than the bottom of the first connection rod 64, the sector gear 63 swings more, so that the displacement of the fixing device 17 in the warning device is amplified for the first time.
As shown in fig. 3, the two-stage amplifying device 11 includes a second roller 111, a first fixed pulley 112, a second fixed pulley 113, a third roller 115 and a second stainless steel wire rope 116, the second roller 111 is installed at the left end of the second push rod 10, the first fixed pulleys 112 are installed at the upper and lower portions of the left side of the second cylinder 7, the second roller 111 is located between the first fixed pulleys 112 at the upper and lower portions, the second fixed pulley 113 is installed at the left side of the top portion in the frame 1, a second through hole 114 is formed at the upper portion of the left side of the frame 1, the third roller 115 is installed at the upper and lower portions in the second through hole 114, the second stainless steel wire rope 116 is connected to the lower portion of the left wall in the frame 1, the second stainless steel wire rope 116 bypasses the first fixed pulley 112 at the lower portion, the second stainless steel wire rope 116 bypasses the second roller 111, the second stainless steel wire rope 116 bypasses the first fixed pulley 112 at the upper portion, the second stainless steel wire rope 116 bypasses the second fixed pulley 113, and the second stainless steel wire rope 116 passes through the second through hole 114, the other end of the second stainless steel wire rope 116 is connected to the bottom end of a swing rod in the slope early warning device.
The second push rod 10 moves leftwards, so that the second stainless steel wire rope 116 is pushed to move leftwards, and because the left part and the right part of the second stainless steel wire rope 116 are pulled leftwards, the second stainless steel wire rope 116 needs double length to be realized, the speed of swinging the bottom end of the swinging rod in the pulling early warning device leftwards is increased, a mirror in the early warning device can be erected faster, a person can see the mirror, and secondary amplification is realized.
As shown in fig. 4, the fixing device 17 includes a tapered block 171, a third mounting block 172, a second connecting rod 173, a movable plate 174 and a sliding block 176, the tapered block 171 is mounted at the bottom end of the rotating shaft 15, the third mounting block 172 is disposed at the bottom of the tapered block 171, the second connecting rod 173 is rotatably disposed on each of the left and right sides of the third mounting block 172, a sliding slot 175 is formed in the lower portion of the inner side of the movable plate 174, the sliding block 176 is slidably connected in the sliding slot 175, the sliding blocks 176 on the left and right sides are rotatably connected with the outer ends of the second connecting rods 173 on the left and right sides, and the bottom ends of the movable plates 174 on the left and right sides are rotatably connected.
After inserting fixing device 17 and second installation piece 12 in the earth on the side slope, it rotates to drive pivot 15 through rotating turning handle 16, pivot 15 rotates and drives toper piece 171 and rotate, toper piece 171 rotates and drives fly leaf 174 and the device rotation on it, make fly leaf 174 leave the orbit of inserting into earth, then stall turning handle 16, when equipment meets ascending power, fly leaf 174 opens to both sides, both sides slider 176 slides down in spout 175, card that can be better is in earth, let the equipment fixing more firm.
Still including rotating lever 18, spill piece 19 and cardboard 20, the equal rotary type in left and right sides lower part is equipped with rotating lever 18 in the framework 1, and the rotating lever 18 other end is connected with spill piece 19, and spill piece 19 card all is equipped with cardboard 20 at 16 tops of turning handle, left and right sides lower part in the framework 1, cardboard 20 and rotating lever 18 cooperation.
When the equipment is installed on a slope, the concave block 19 is clamped on the top of the rotating handle 16, so that the rotating shaft 15 and the device on the rotating shaft are prevented from rotating in the installation process when the equipment is installed, and when the rotating shaft 15 and the device on the rotating shaft are required to rotate, the rotating rod 18 and the device on the rotating rod are rotated, so that the rotating rod 18 is clamped on the clamping plate 20, and then the rotating shaft 15 and the device on the rotating rod can be rotated. So the installation equipment can be more convenient.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (3)
1. The utility model provides a side slope is displacement amplification device for early warning which characterized in that: the piston type piston cylinder comprises a frame body (1), a first mounting block (2), a first cylinder body (3), a first piston (4), a first push rod (5) and a first-stage amplification device (6), wherein the first mounting block (2) is arranged in the middle of the upper side and the lower side in the frame body (1), the first cylinder body (3) is arranged between the right sides of the mounting blocks on the upper side and the lower side, the first piston (4) is arranged in the first cylinder body (3), the first push rod (5) is arranged in the middle of the right side of the first piston (4), the first push rod (5) penetrates through the right wall of the first cylinder body (3), and the first-stage amplification device (6) is connected to the lower portion of the right side of the first cylinder body (3); the device also comprises a second cylinder body (7), an air pipe (8), a second piston (9), a second push rod (10), a second-stage amplification device (11), a second installation block (12), a bearing seat (14), a rotating shaft (15), a rotating handle (16) and a fixing device (17), wherein the right end of the first push rod (5) is connected to the first-stage amplification device (6), the second cylinder body (7) is installed between the left sides of the first installation blocks (2) on the upper side and the lower side, the air pipe (8) is connected between the upper side and the lower side of the left part of the first cylinder body (3) and the upper side and the lower side of the left side of the second cylinder body (7), the first cylinder body (3) is communicated with the second cylinder body (7) through the air pipe (8), the second piston (9) is arranged in the second cylinder body (7), the second push rod (10) is installed in the middle part of the left side of the second piston (9), the second push rod (10) penetrates through the left wall of the second cylinder body (7), the second amplification device (11) is connected to the left side of the second cylinder body (7), the left side and the right side of the bottom of the frame body (1) are respectively provided with a second mounting block (12), the middle part of each second mounting block (12) is provided with a third through hole (13), the left side and the right side of the bottom of the frame body (1) are respectively provided with a bearing seat (14) in an embedded manner, each bearing seat (14) is internally provided with a rotating shaft (15), the top of each rotating shaft (15) is provided with a rotating handle (16), each rotating shaft (15) is arranged in each third through hole (13), and the bottom of each rotating shaft (15) is provided with a fixing device (17); the first-stage amplifying device (6) comprises a rack (61), a connecting block (62), a sector gear (63), a first connecting rod (64), a first roller (66) and a first stainless steel wire rope (67), the right end of a first push rod (5) is connected with the rack (61), the lower part of the right side of the first cylinder body (3) is provided with the connecting block (62), the sector gear (63) is rotatably installed at the right part of the connecting block (62), the sector gear (63) is meshed with the rack (61), the bottom of the sector gear (63) is provided with the first connecting rod (64), the lower part of the right side of the frame body (1) is provided with a first through hole (65), the upper side and the lower side of the first through hole (65) are respectively provided with the first roller (66), the bottom end of the first connecting rod (64) is connected with the first stainless steel wire rope (67), the first stainless steel wire rope (67) passes through the first through hole (65), and the first stainless steel wire rope (67) is arranged between the first roller (66) at the upper side and the lower side, the other end of the first stainless steel wire rope (67) is connected to a fixing device (17) in the slope early warning device; the second-stage amplifying device (11) comprises a second roller (111), a first fixed pulley (112), a second fixed pulley (113), a third roller (115) and a second stainless steel wire rope (116), the second roller (111) is installed at the left end of the second push rod (10), the first fixed pulley (112) is installed on the upper portion and the lower portion of the left side of the second cylinder body (7), the second roller (111) is located between the first fixed pulleys (112) on the upper side and the lower side, the second fixed pulley (113) is installed on the left side of the inner top of the frame body (1), a second through hole (114) is formed in the upper portion of the left side of the frame body (1), the third roller (115) is installed on the upper side and the lower side of the inner left wall of the frame body (114), the second stainless steel wire rope (116) bypasses the first fixed pulley (112) on the lower portion, and the second stainless steel wire rope (116) bypasses the second roller (111), the second stainless steel wire rope (116) rounds the first fixed pulley (112) on the upper portion, the second stainless steel wire rope (116) rounds the second fixed pulley (113), the second stainless steel wire rope (116) penetrates through the second through hole (114), and the other end of the second stainless steel wire rope (116) is connected to the bottom end of a swing rod in the slope early warning device.
2. The displacement amplification device for slope early warning as claimed in claim 1, wherein: fixing device (17) is including toper piece (171), third installation piece (172), second connecting rod (173), fly leaf (174) and slider (176), toper piece (171) are installed to pivot (15) bottom, toper piece (171) bottom is equipped with third installation piece (172), the equal rotary type in both sides is equipped with second connecting rod (173) about third installation piece (172), spout (175) have been opened to fly leaf (174) inboard lower part, spout (175) internal sliding type is connected with slider (176), slider (176) in the left and right sides are connected with second connecting rod (173) outer end rotary type in the left and right sides respectively, fly leaf (174) bottom rotary type in the left and right sides is connected.
3. The displacement amplification device for slope early warning as claimed in claim 2, wherein: still including rotating rod (18), concave piece (19) and cardboard (20), the equal rotary type of left and right sides lower part is equipped with rotating rod (18) in framework (1), and the rotating rod (18) other end is connected with concave piece (19), and concave piece (19) card is at turning handle (16) top, and the left and right sides lower part all is equipped with cardboard (20) in framework (1), cardboard (20) and rotating rod (18) cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010583246.1A CN111691440B (en) | 2020-06-24 | 2020-06-24 | Displacement amplification device for slope early warning |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010583246.1A CN111691440B (en) | 2020-06-24 | 2020-06-24 | Displacement amplification device for slope early warning |
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| CN111691440A CN111691440A (en) | 2020-09-22 |
| CN111691440B true CN111691440B (en) | 2021-07-23 |
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| CN202010583246.1A Active CN111691440B (en) | 2020-06-24 | 2020-06-24 | Displacement amplification device for slope early warning |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115142439B (en) * | 2022-04-13 | 2024-01-19 | 中国电建集团贵阳勘测设计研究院有限公司 | Slope protection and landslide early warning device |
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| US6561451B1 (en) * | 1998-12-22 | 2003-05-13 | Asm Automation Sensorik Messtechnik Gmbh | Measuring cable travel sensor with longitudinal drive for the cable drum |
| CN103196476A (en) * | 2013-04-01 | 2013-07-10 | 哈尔滨工业大学 | Displacement amplification device |
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| CN103541566A (en) * | 2012-07-16 | 2014-01-29 | 四川五新智能设备有限公司 | Lifting stroke two-stage amplification device for stereo garage |
| CN108320651A (en) * | 2017-12-12 | 2018-07-24 | 芜湖市夏氏世家家具有限公司 | A kind of simulator of amplification piston stroke |
| CN110345123A (en) * | 2019-07-05 | 2019-10-18 | 太原理工大学 | A kind of miniature linear hydraulic actuator of trailing type and its application method |
| CN110777958A (en) * | 2019-11-11 | 2020-02-11 | 长安大学 | Beam column node displacement amplification damping device with restorable function |
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2020
- 2020-06-24 CN CN202010583246.1A patent/CN111691440B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6561451B1 (en) * | 1998-12-22 | 2003-05-13 | Asm Automation Sensorik Messtechnik Gmbh | Measuring cable travel sensor with longitudinal drive for the cable drum |
| CN103541566A (en) * | 2012-07-16 | 2014-01-29 | 四川五新智能设备有限公司 | Lifting stroke two-stage amplification device for stereo garage |
| CN203161718U (en) * | 2013-02-25 | 2013-08-28 | 三一重工股份有限公司 | Oil cylinder displacement measuring device and pumping system |
| CN103196476A (en) * | 2013-04-01 | 2013-07-10 | 哈尔滨工业大学 | Displacement amplification device |
| CN108320651A (en) * | 2017-12-12 | 2018-07-24 | 芜湖市夏氏世家家具有限公司 | A kind of simulator of amplification piston stroke |
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| CN110777958A (en) * | 2019-11-11 | 2020-02-11 | 长安大学 | Beam column node displacement amplification damping device with restorable function |
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|---|---|
| CN111691440A (en) | 2020-09-22 |
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