CN103405865B - Small-bore motor-pumped well rescue portal - Google Patents
Small-bore motor-pumped well rescue portal Download PDFInfo
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- CN103405865B CN103405865B CN201310358785.5A CN201310358785A CN103405865B CN 103405865 B CN103405865 B CN 103405865B CN 201310358785 A CN201310358785 A CN 201310358785A CN 103405865 B CN103405865 B CN 103405865B
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Abstract
The invention discloses a small-bore motor-pumped well rescue portal, relates to a rescue portal used for a small-bore motor-pumped well, and aims to provide a small-bore motor-pumped well rescue portal which is simple in structure, simple and convenient to operate and can safely and effectively fix and lift a human body falling in the well. The small-bore motor-pumped well rescue portal comprises a gas cylinder, a flexible air cylinder, a left upright, a right upright, a left baffle, a right baffle and the like. According to the invention, the uprights can be inserted from the front and rear parts of the human body falling in the well, the baffle can be folded between two legs, so as to form a rigid frame vertical to the direction of the human body to sleeve the human body, so that the fixing and lifting can be completed; the plane of the portal can be rotated, the width can stretch out and draw back, so that the portal does not shake when being used for fixing the human body, and can correct the error to start work again, so that the fixing and lifting actions can be completed smoothly.
Description
Technical field
The present invention relates to a kind of rescue door frame, particularly relating to a kind of for succouring the rescue door frame crashing into personnel in small-bore motor-pumped well.
Background technology
China has a large amount of motor-pumped wells to spread all over farmland, and the degree of depth can reach tens of rice to rice up to a hundred.Motor-pumped well can go out of use after using and year taking out not water outlet for a long time.Discarded motor-pumped well does not backfill in time, or well lid is in bad repair, and people often fall in well when especially children play.Less motor-pumped well diameter is about 300-500mm, and the rescue of pendant well is very difficult.
At present, the rescue mode that pendant well is conventional has: discharge the equipment such as rope, hook ladder, rope ladder to down-hole, instruct person down the well to implement to save oneself, but if run into young children, or time darker by card position then the method cannot implement; Excavate well casing method, need to drop into more human and material resources, financial resources, rescue time is long, and success rate is low, well head even may be caused to cave in, damage rescue personnel.
At present, published rescue aid has: bondage class is as noose, claw hook, steel ring or umbrella grip etc., existing problems be when those who fall well be stuck in comparatively deep location time, because rope shake not easily realizes fixing human, or it is fixing unreliable, some grip is grabbed and is tied up staff or pin, may damage dangerous to human body; Fixture kind equipment hangs in well by special fixture rope, trapping human shirtfront back, relies on frictional force upwards to promote, and this equipment also exists fixing human shortcoming not reliably, causes comparatively major injury when the inadequate slippage of frictional force to head part; Air bag class the air bag of unaerated is hung in inflation after below human body, more upwards promote, and its weak point is that air bag is not easy to through human body by position, card division, monolateral tether rope, and stressed rear gasbag distortion, can not pull out those who fall well smoothly; Bracket class a metallic rod is goed deep into retracting spring after below human body to form bracket, and its deficiency is eccentric force, is easily stuck when above carrying; And the structure of manipulator for rescue or robot and dynamical system complexity, be not suitable for the rescue of more small-bore motor-pumped well yet.
Summary of the invention
The technical problem to be solved in the present invention is to provide the small-bore motor-pumped well rescue door frame that a kind of structure is simple, easy and simple to handle, can safe and effectively fix and promote pendant well human body.
The present invention's small-bore motor-pumped well rescue door frame, comprise gas cylinder, suspension ring, nylon rope, telescopic cylinder, left cylinder node, right cylinder node, left column, right column, a left side closes up cylinder, the right side closes up cylinder, right baffle-plate, right baffle plate, remote control, described gas cylinder horizontal positioned, the upper end center position of described gas cylinder is provided with suspension ring, described nylon rope is connected with suspension ring, the left end of described gas cylinder connects the upper end of left cylinder node, the right-hand member of described gas cylinder connects the upper end of right cylinder node, described telescopic cylinder is with double piston-rod, the piston rod of described telescopic cylinder left end is connected with the right-hand member of left cylinder node, the piston rod of described telescopic cylinder right-hand member is connected with the left end of right cylinder node, the lower end of described left cylinder node is connected with left column upper end, the described right lower end of cylinder node is connected with the upper end of right column, described left column inside arranges a left side and closes up cylinder, described right column inside arranges the right side and closes up cylinder, the left end of the hinged right baffle-plate of lower end outside of described left column, the right-hand member of the hinged right baffle plate of lower end outside of described right column, described right baffle-plate and right baffle plate are provided with chute, in described chute, slidably pin is all set, described slidably pin is hinged on a left side respectively and closes up cylinder piston rod lower end and the right side and close up cylinder piston rod lower end, buckling device is provided with between the right-hand member of described right baffle-plate and the left end of right baffle plate, described right baffle-plate can be connected locking by buckling device with right baffle plate, described telescopic cylinder, a left side closes up cylinder, the right side closes up cylinder and is communicated with gas cylinder respectively by gas pipeline, described gas pipeline is provided with magnetic valve, described magnetic valve is for controlling air inlet and the exhaust of each cylinder, described remote control is used for the opening and closing of Controlling solenoid valve.
The present invention's small-bore motor-pumped well rescue door frame, the inside of wherein said left cylinder node is provided with left spring, and the left end of described left spring is connected with left universal wheel, and the inside of described right cylinder node arranges right spring, and the right-hand member of described right spring connects right universal wheel.
The present invention's small-bore motor-pumped well rescue door frame, the cylinder barrel outer wall of wherein said telescopic cylinder is provided with front rotary cylinder, rear rotary cylinder, described front rotary cylinder, rear rotary cylinder are coaxially oppositely arranged on telescopic cylinder cylinder barrel mid-length side, the described axis of front rotary cylinder and the axes normal of telescopic cylinder, described front rotary cylinder, rear rotary cylinder are communicated with gas cylinder respectively by gas pipeline, described gas pipeline is provided with magnetic valve, described magnetic valve is used for air inlet and the exhaust of control cylinder, and described magnetic valve is controlled by remote control.
The present invention's small-bore motor-pumped well rescue door frame, between wherein said gas cylinder and left cylinder node, left connecting rod is installed, between described gas cylinder and right cylinder node, right connecting rod is installed, the left end of described gas cylinder connects the upper end of left cylinder node by left connecting rod, the right-hand member of described gas cylinder connects the upper end of right cylinder node by right connecting rod.
The present invention's small-bore motor-pumped well rescue door frame, wherein said gas cylinder is provided with total air valve, and described gas pipeline is communicated with total air valve.
The present invention's small-bore motor-pumped well rescue door frame, wherein said buckling device comprises hasp and buckle, described hasp is connected with the left end of right baffle plate, the left end of described buckle is connected with the right-hand member of right baffle-plate, the right-hand member of described buckle is provided with elasticity holding section, described elasticity holding section arranges groove, and the groove of buckle can fasten with the left end of hasp.
The present invention's small-bore motor-pumped well rescue door frame, wherein said left column inside lower end and right column inside lower end all arrange spacer pin.
The present invention's small-bore motor-pumped well rescue door frame, wherein said telescopic cylinder is single-acting cylinder, and described front rotary cylinder, rear rotary cylinder are single-acting cylinder, and a described left side closes up cylinder, the right side closes up cylinder and is double-acting cylinder.
The present invention's small-bore motor-pumped well rescue door frame, wherein said gas cylinder is provided with Pressure gauge.
The present invention's small-bore motor-pumped well rescue door frame, wherein said left column is provided with oxygen supply device, camera, illuminating lamp, intercom system, described right column top is provided with battery, described battery is camera, illuminating lamp, intercom system and solenoid valve, described camera is connected with display unit, and the image of described camera shooting transfers back in the display unit of ground setting.
The present invention's small-bore motor-pumped well rescue door frame difference from prior art is to the present invention includes gas cylinder, telescopic cylinder, close up the parts such as cylinder, structure is simple, only the present invention slowly need be put into well during use, for each cylinder air feed, adjust the relative position between small-bore motor-pumped well rescue door frame and human body, right baffle-plate and right baffle plate are passed between human body two leg, locking is closed up by buckling device, promote human body again, easy and simple to handle, in use, the symmetrical underwriter's body weight of small-bore motor-pumped well rescue door frame, right baffle-plate and right baffle plate are locked by buckling device, spacer pin is spacing, can safe and effective fixing and lifting pendant well human body.
Below in conjunction with accompanying drawing, small-bore motor-pumped well rescue door frame of the present invention is described further.
Accompanying drawing explanation
Fig. 1 is the schematic front view of the present invention's small-bore motor-pumped well rescue door frame;
Fig. 2 is the schematic top plan view of the present invention's small-bore motor-pumped well rescue door frame.
Detailed description of the invention
As shown in Figure 1, the present invention includes gas cylinder 1, total air valve, suspension ring 3, nylon rope 4, telescopic cylinder 5, left cylinder node 6, right cylinder node 7, left spring 8, right spring 9, left universal wheel 10, right universal wheel 11, left connecting rod 12, right connecting rod 13, left column 14, right column 15, a left side closes up cylinder 16, the right side closes up cylinder 17, right baffle-plate 18, right baffle plate 19, front rotary cylinder 20, rear rotary cylinder 21, remote control 24, gas cylinder 1 is according to design of pressure vessels, length little 100mm more about than well head diameter, gas cylinder 1 can be circular or rectangle, diameter or rectangular edges are about 100mm, gas cylinder 1 horizontal positioned, gas cylinder 1 can be inflated to it by source of the gas, gas cylinder 1 is provided with Pressure gauge and total air valve, total air valve is initially in closed condition, the upper end center position of gas cylinder 1 is provided with suspension ring 3, nylon rope 4 is connected with suspension ring 3, the left end of gas cylinder 1 connects the upper end of left cylinder node 6 by left connecting rod 12, the inside of left cylinder node 6 arranges left spring 8, the left end of left spring 8 connects left universal wheel 10, the right-hand member of gas cylinder 1 connects the upper end of right cylinder node 7 by right connecting rod 13, the inside of right cylinder node 7 arranges right spring 9, the right-hand member of right spring 9 connects right universal wheel 11, telescopic cylinder 5 is the single-acting cylinder with double piston-rod, initial place is at retracted mode, telescopic cylinder 5 diameter is 40-60mm, the length of telescopic cylinder 5 and the diameter of well adapt, each piston rod stroke is about 30-50mm, diameter of piston rod is about 20mm, can horizontal extension after air feed, the piston rod of telescopic cylinder 5 left end is connected with the right-hand member of left cylinder node 6, the piston rod of telescopic cylinder 5 right-hand member is connected with the left end of right cylinder node 7, the lower end of left cylinder node 6 and left column 14 upper end thereof, the lower end of right cylinder node 7 and the upper end thereof of right column 15, link position between left connecting rod 12 and left cylinder node 6, left cylinder node 6 is corresponding up and down with the articulated position of left column 14, the link position of right connecting rod 13 and right cylinder node 7, right cylinder node 7 is corresponding up and down with the articulated position of right column 15, a left side closes up cylinder 16 and the right side and closes up cylinder 17 for double-acting cylinder and can control in parallel or respectively, diameter is about 16-20mm, stroke ratio well head radius is smaller, left column 14 inside arranges a left side and closes up cylinder 16, right column 15 inside arranges the right side and closes up cylinder 17, left, the length of right column is about 1500mm, be made up of square steel tube, the left end of the hinged right baffle-plate 18 of lower end outside of left column 14, the right-hand member of the hinged right baffle plate 19 of lower end outside of right column 15, the centre position of right baffle-plate 18 and right baffle plate 19 is provided with chute along its length, in chute, slidably pin is all set, slidably pin is hinged on a left side respectively and closes up cylinder 16 piston-rod lower end and the right side closes up cylinder 17 piston-rod lower end, left column 14 inside lower end and right column 15 inside lower end all arrange spacer pin, buckling device is connected with between right baffle-plate 18 and right baffle plate 19, buckling device comprises hasp and buckle, the left end of right baffle plate 19 is connected with hasp, the right-hand member of right baffle-plate 18 connects buckle, hasp is corresponding with snapped-in position, the left end of buckle is connected with the right-hand member of right baffle-plate 18, the right-hand member of buckle is provided with elasticity holding section, holding section arranges groove to elasticity, groove holds the left end of hasp when fastening for hasp and buckle, after hasp and buckle fasten, right baffle-plate 18 is connected locking with right baffle plate 19 and can not moves horizontally outward, right baffle-plate 18 and right baffle plate 19 can be limited in level of approximation position by spacer pin, telescopic cylinder 5, a left side closes up cylinder 16, the right side closes up cylinder 17, front rotary cylinder 20, rear rotary cylinder 21 is communicated with total air valve respectively by gas pipeline, be communicated to gas cylinder 1 again, gas pipeline is provided with magnetic valve, these magnetic valves are for controlling air inlet and the exhaust of each cylinder, remote control 24 is used for the opening and closing of Controlling solenoid valve.
Left column 14 arranges oxygen supply device, left column 14 is also provided with camera, illuminating lamp, intercom system, right column 15 top is provided with battery, battery is camera, illuminating lamp, intercom system and solenoid valve, camera connects display unit, and the image of camera shooting transfers back in the display unit of ground setting.
As shown in Figure 2, rotary cylinder 20, rear rotary cylinder 21 before the mid-length side of the cylinder barrel of telescopic cylinder 5 is coaxially oppositely installed, the axis of front rotary cylinder 20 and the axes normal of telescopic cylinder 5, front rotary cylinder 20, rear rotary cylinder 21 are single-acting cylinder, initial place is at retracted mode, its diameter is about 16-20mm, and stroke is about 50mm, and its length and well head radius adapt.A left side close up cylinder and the right side close up cylinder can be in parallel or control respectively.
During use, inflate in gas cylinder with source of the gas, observe storage pressure by Pressure gauge, control storage pressure and reach desired value.During rescue, firmly set up tripod at well head, wheel (not shown in FIG.), by nylon rope through fixed pulley, reliably mount with the suspension ring on the hook be connected on nylon rope and gas cylinder.Open illuminating lamp, camera, intercom system (not shown in FIG.), total air valve (not shown in FIG.).In original state, telescopic cylinder and rotary cylinder are in retracted state, the about 60-100mm less of well head diameter of the distance between left universal wheel and right universal wheel, and the left and right piston closing up cylinder is all in uppermost position in fig-ure, left and right baffle plate is all near vertical position, and rescue door frame can sink smoothly.
Shake wheel in well slowly sinking rescue door frame.When the left column lower end and right column lower end of rescuing door frame arrive near those who fall well head, temporary fixed wheel, but the position of left universal wheel and right universal wheel will be made to avoid pit shaft seam 23 '.Now, cure by oxygen therapy to those who fall well by oxygen supply device, linked up by intercom system and its call time possible.Under the help of camera, by the remote control on ground, start the magnetic valve on telescopic cylinder supply air line, under pressure, the piston rod of telescopic cylinder is overhanging, withstands the borehole wall 22 ' a little.Now left universal wheel all contacts with the borehole wall 22 ' with right universal wheel, can overcome door frame and rock; Due to the existence of universal wheel and spring, also can along the borehole wall around lifting-point rotating to (i.e. the reaction force of cylinder piston pole pair borehole wall thrust) door frame under the thrust of the piston rod of forward and backward rotary cylinder at the borehole wall 22 '.By ground remote controller, the borehole wall 22 ' is lived to front rotary cylinder air feed back piston masthead, rescue door frame can be rotated counterclockwise in the plane; Can rotate clockwise after rear rotary cylinder air feed.Rescue door frame Plane Rotation is controlled to the optimum position perpendicular to those who fall well human body width, to be inserted into the bottom of human body under facilitating left and right column by the piston rod outreach of forward and backward rotary cylinder.Control the exhaust of forward and backward rotary cylinder, piston rod is bounced back and leaves the borehole wall 22 '.Again shake wheel, downward sinking rescue door frame, under now the neutral gear from the just forward and backward position of those who fall well human body is vertically inserted by left and right column under Gravitative Loads.When left column lower end (size of right column is identical with left column) a little more than near people's pin time, fixing wheel is motionless.Start the left and right magnetic valve closing up cylinder by ground remote controller, gas cylinder to left and right closing up cylinder piston top air feed by gas pipeline, is promoted piston and moves downward.Under piston rod promotes, sliding pin slide downward, be initially in vertical left and right baffle plate and rotate into level of approximation position from its jointed shaft of spaced winding of person down the well two leg, two of both sides baffle plates are closed up, fasten locking (two side shields can not leave relatively) by hasp with buckle, form rigid frame.Now, rescue door frame completes and reliably entangle human body task from those who fall well hip.If botched routines above, left and right baffle plate, not between human body both legs, is recoverable to left and right baffle plate, again door frame position adjustment suitable after, again make two baffle plates close up locking.Rescue after door frame entangles human body, can control telescopic cylinder and reset, and door frame width is bounced back about 60-100mm, and in can avoiding promoting, door frame is stuck.When two baffle plates guaranteeing to close up entangle human body between human body two leg, shake wheel, upwards slowly promote rescue door frame and human body to ground.In lifting process, door frame symmetry bears body weight, and the piston rod of telescopic cylinder only bears axial compressive force and can not bend.
After transporting those who fall well, close up cylinder piston bottom air feed to left and right, make piston stroking upward, left and right baffle plate resets near vertical position, uses in order to next time again.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (10)
1. a small-bore motor-pumped well rescue door frame, it is characterized in that: comprise gas cylinder (1), suspension ring (3), nylon rope (4), telescopic cylinder (5), left cylinder node (6), right cylinder node (7), left column (14), right column (15), a left side closes up cylinder (16), the right side closes up cylinder (17), right baffle-plate (18), right baffle plate (19), remote control (24), described gas cylinder (1) horizontal positioned, the upper end center position of described gas cylinder (1) is provided with suspension ring (3), described nylon rope (4) is connected with suspension ring (3), the left end of described gas cylinder (1) connects the upper end of left cylinder node (6), the right-hand member of described gas cylinder (1) connects the upper end of right cylinder node (7), described telescopic cylinder (5) is with double piston-rod, the piston rod of described telescopic cylinder (5) left end is connected with the right-hand member of left cylinder node (6), the piston rod of described telescopic cylinder (5) right-hand member is connected with the left end of right cylinder node (7), the lower end of described left cylinder node (6) is connected with left column (14) upper end, the lower end of described right cylinder node (7) is connected with the upper end of right column (15), described left column (14) inside arranges a left side and closes up cylinder (16), described right column (15) inside arranges the right side and closes up cylinder (17), the left end of the hinged right baffle-plate of lower end outside (18) of described left column (14), the right-hand member of the hinged right baffle plate (19) of lower end outside of described right column (15), described right baffle-plate (18) and right baffle plate (19) are provided with chute, in described chute, slidably pin is all set, described slidably pin is hinged on a left side respectively and closes up cylinder (16) piston-rod lower end and the right side closes up cylinder (17) piston-rod lower end, buckling device is provided with between the right-hand member of described right baffle-plate (18) and the left end of right baffle plate (19), described right baffle-plate (18) can be connected locking by buckling device with right baffle plate (19), described telescopic cylinder (5), a left side closes up cylinder (16), the right side closes up cylinder (17) and is communicated with gas cylinder (1) respectively by gas pipeline, described gas pipeline is provided with magnetic valve, described magnetic valve is for controlling air inlet and the exhaust of each cylinder, described remote control (24) is used for the opening and closing of Controlling solenoid valve.
2. small-bore motor-pumped well rescue door frame according to claim 1, it is characterized in that: the inside of described left cylinder node (6) is provided with left spring (8), the left end of described left spring (8) is connected with left universal wheel (10), the inside of described right cylinder node (7) arranges right spring (9), and the right-hand member of described right spring (9) connects right universal wheel (11).
3. small-bore motor-pumped well rescue door frame according to claim 2, it is characterized in that: the cylinder barrel outer wall of described telescopic cylinder (5) is provided with front rotary cylinder (20), rear rotary cylinder (21), described front rotary cylinder (20), rear rotary cylinder (21) is coaxially oppositely arranged on telescopic cylinder (5) cylinder barrel mid-length side, the axis of described front rotary cylinder (20) and the axes normal of telescopic cylinder (5), described front rotary cylinder (20), rear rotary cylinder (21) is communicated with gas cylinder (1) respectively by gas pipeline, described gas pipeline is provided with magnetic valve, described magnetic valve is used for air inlet and the exhaust of control cylinder, described magnetic valve is controlled by remote control (24).
4. small-bore motor-pumped well rescue door frame according to claim 3, it is characterized in that: left connecting rod (12) is installed between described gas cylinder (1) and left cylinder node (6), right connecting rod (13) is installed between described gas cylinder (1) and right cylinder node (7), the left end of described gas cylinder (1) connects the upper end of left cylinder node (6) by left connecting rod (12), the right-hand member of described gas cylinder (1) connects the upper end of right cylinder node (7) by right connecting rod (13).
5. small-bore motor-pumped well rescue door frame according to claim 4, is characterized in that: (1) is provided with total air valve with described gas cylinder, and described gas pipeline is communicated with total air valve.
6. small-bore motor-pumped well rescue door frame according to claim 5, it is characterized in that: described buckling device comprises hasp and buckle, described hasp is connected with the left end of right baffle plate (19), the left end of described buckle is connected with the right-hand member of right baffle-plate (18), the right-hand member of described buckle is provided with elasticity holding section, described elasticity holding section arranges groove, and the groove of buckle can fasten with the left end of hasp.
7. small-bore motor-pumped well rescue door frame according to claim 6, is characterized in that: described left column (14) inside lower end and right column (15) inside lower end all arrange spacer pin.
8. small-bore motor-pumped well rescue door frame according to claim 7, it is characterized in that: described telescopic cylinder (5) is single-acting cylinder, described front rotary cylinder (20), rear rotary cylinder (21) are single-acting cylinder, and a described left side closes up cylinder (16), the right side closes up cylinder (17) and is double-acting cylinder.
9. small-bore motor-pumped well rescue door frame according to claim 8, is characterized in that: (1) is provided with Pressure gauge with described gas cylinder.
10. small-bore motor-pumped well rescue door frame according to claim 9, it is characterized in that: (14) are provided with oxygen supply device, camera, illuminating lamp, intercom system to described left column, described right column (15) top is provided with battery, described battery is camera, illuminating lamp, intercom system and solenoid valve, described camera is connected with display unit, and the image of described camera shooting transfers back in the display unit of ground setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310358785.5A CN103405865B (en) | 2013-08-16 | 2013-08-16 | Small-bore motor-pumped well rescue portal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310358785.5A CN103405865B (en) | 2013-08-16 | 2013-08-16 | Small-bore motor-pumped well rescue portal |
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| Publication Number | Publication Date |
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| CN103405865A CN103405865A (en) | 2013-11-27 |
| CN103405865B true CN103405865B (en) | 2015-07-08 |
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| CN201310358785.5A Expired - Fee Related CN103405865B (en) | 2013-08-16 | 2013-08-16 | Small-bore motor-pumped well rescue portal |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107837472A (en) * | 2016-09-18 | 2018-03-27 | 湖北汽车工业学院 | A kind of deep well rescue is without secondary damage device |
| CN108525155A (en) * | 2017-03-02 | 2018-09-14 | 防城港思创信息技术有限公司 | A kind of water well rescue device |
| CN114392502B (en) * | 2017-03-28 | 2022-11-18 | 徐州花千树农业发展有限公司 | Rescue method of abandoned well rescue robot with high safety |
| CN112587828B (en) * | 2021-01-12 | 2022-05-06 | 成都吉莫闪科技有限公司 | Deep hole rescue equipment for collapse danger |
| CN113523121B (en) * | 2021-06-30 | 2023-08-15 | 上海奥特博格汽车工程有限公司 | Door opening edge rolling head tool |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2661978A (en) * | 1951-06-25 | 1953-12-08 | Lauro Timotheo | Grapple |
| CN2887344Y (en) * | 2006-05-16 | 2007-04-11 | 中国人民武装警察部队学院 | Multifunctional rescue device used for small-diameter entry shaft |
| CN101912672A (en) * | 2010-08-18 | 2010-12-15 | 范文利 | Deep well rescue device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060005451A1 (en) * | 2004-07-12 | 2006-01-12 | Norman David R | Mechanical netting device |
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2013
- 2013-08-16 CN CN201310358785.5A patent/CN103405865B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2661978A (en) * | 1951-06-25 | 1953-12-08 | Lauro Timotheo | Grapple |
| CN2887344Y (en) * | 2006-05-16 | 2007-04-11 | 中国人民武装警察部队学院 | Multifunctional rescue device used for small-diameter entry shaft |
| CN101912672A (en) * | 2010-08-18 | 2010-12-15 | 范文利 | Deep well rescue device |
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