CN203807002U - Recovery vehicle for tunnel - Google Patents
Recovery vehicle for tunnel Download PDFInfo
- Publication number
- CN203807002U CN203807002U CN201420178701.XU CN201420178701U CN203807002U CN 203807002 U CN203807002 U CN 203807002U CN 201420178701 U CN201420178701 U CN 201420178701U CN 203807002 U CN203807002 U CN 203807002U
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- CN
- China
- Prior art keywords
- arm
- lift
- tunnel
- chassis
- tow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a recovery vehicle for a tunnel. The recovery vehicle for the tunnel comprises a lifting arm assembly (10), a lifting mechanism (30), a rotary mechanism (40) and a chassis (50), wherein the rotary mechanism is arranged on the chassis, the lifting arm assembly is connected with the rotary mechanism, and the length of the lifting arm assembly is set, so that when the lifting arm varies and stretches, the chassis can be maintained stable. The recovery vehicle for the tunnel further comprises the lifting mechanism which can be installed on the chassis in a lifting manner. The chassis is an all-wheel steering and all-wheel driving chassis. As the chassis can be maintained stable when the lifting arm varies and stretches, the recovery vehicle for the tunnel can realize operations such as variation of amplitude and stretch without a supporting leg. After the recovery vehicle for the tunnel hoists and lifts the accident vehicle, the recovery vehicle for the tunnel can depart from the tunnel without turning around by means of joint effect of rotation of the rotary mechanisms and the all-wall steering and all-wheel driving chassis.
Description
Technical field
The utility model relates to construction machinery and equipment, particularly, relates to a kind of freeway tunnel tow lift.
Background technology
Along with deepening continuously and economic fast development of China's reform and opening-up, the construction of express highway has obtained swift and violent development.In recent years, express highway has become the main thoroughfare of people's trip and goods transport, but expressway traffic accident also occurs again and again, especially in super long tunnel, often there is full size vehicle, as accidents such as the collisions of the tumbling of motor omnibus, high capacity waggon, many vehicles.For the accident rescue of motor omnibus, high capacity waggon, general common full-sized car hoisting crane and the heavy type wrecker of adopting in prior art.
While adopting general-utility car hoisting crane and road obstacle clearing vehicle lifting accident vehicle, need stretch out horizontal support legs and vertical leg, in the time that horizontal support legs and vertical leg are all stretched out, laterally span reaches 7m, car load height reaches 4m, and arm needs larger change angle in the time of hoisting heavy.But the little (tunnel width≤9.5m in tunnel space Shan, height≤the 7.4m of tunnel vertex, tunnel usable height 5m), while making the rescue of general-utility car hoisting crane and road obstacle clearing vehicle effective activity space be restricted and the time of stretching one's legs longer, the scene of the causing the accident troubleshooting difficulty of speedily carrying out rescue work, takes time and effort traffic jam in tunnel, interruption of communication, has a strong impact on the unimpeded operation of express highway.
Therefore need a kind of quick, actv. accident vehicle can be migrated out to tunnel, within the shortest time, recover the tow lift of tunnel traffic.
Utility model content
The purpose of this utility model is to provide a kind of tunnel tow lift, with quick, actv., accident vehicle is migrated out to tunnel.
To achieve these goals, the utility model provides a kind of tunnel tow lift, and described tunnel tow lift comprises boom assembly, lift mechanism, swing type mechanism and chassis; Described swing type mechanism is arranged on described chassis, described boom assembly is connected with described swing type mechanism, it is characterized in that, the length of described boom assembly be set in the time that this boom assembly carries out luffing, expanding-contracting action described in chassis can keep stable, and described tunnel tow lift also comprises can be arranged on the lift mechanism on described chassis up and down, and described chassis is four-wheel steering, all-wheel powered chassis.
Preferably, described lift mechanism comprises fixed guide, vertical slide rail, lifts arm, sliding driving device, retractable driving device, rotating driving device; Described fixed guide is vertically arranged and this fixed guide is connected with described chassis, described vertical slide rail and described fixed guide sliding block joint, described one end and the described vertical slide rail of lifting arm is hinged, and described sliding driving device is arranged on described vertical slide rail to drive described vertical slide rail to slide along described fixed guide; Described in described rotating driving device and described retractable driving device are installed in, lift on arm, be respectively used to lift described in driving arm and lift hinge-point rotation of arm and described vertical slide rail and stretch along this length direction of lifting arm for lifting arm described in driving around this.
Preferably, described in, lift arm around the rotating range of described hinge-point for can be downward with respect to horizontal direction 5 ° to rotating up 90 ° with respect to horizontal direction.
Preferably, this tunnel tow lift also comprises crossbeam, and the part between the two ends of described crossbeam is fixed with the described other end of lifting arm, and the two ends of described crossbeam are respectively arranged with bracket, and described bracket and described crossbeam sliding block joint, be all provided with crotch on described bracket.
Preferably, the described arm of lifting comprises and substantially lifts flexible arm and the flexible arm of lifting of second section lifted of arm, first segment, describedly substantially lift arm and described vertical slide rail is hinged, describedly substantially lift that arm, first segment are flexible lifts arm and second section is flexible lifts arm and be slidably socketed successively.
Preferably, described boom assembly comprises basic arm, first segment telescoping boom, second section telescoping boom; Described basic arm is connected with described swing type mechanism, and described basic arm, first segment telescoping boom and second section telescoping boom be slidably socketed successively, and described basic arm, first segment telescoping boom and second section telescoping boom are hexagon box type construction.
Preferably, when described tunnel tow lift also comprises vehicle rollover for supporting the support movable stand of accident vehicle.
Preferably, described support movable stand comprises link span and at least two travelling cars, and these at least two described travelling cars are separately positioned on the two ends of described link span.
Preferably, described sliding driving device, retractable driving device and rotating driving device are hydraulic actuating cylinder, and described chassis adopts hydraulic drive type chassis.
Preferably, described chassis is the chassis of four-wheel steering, four wheel drive.
The tunnel tow lift that the utility model provides is because chassis can keep stable in the time that boom assembly carries out luffing, expanding-contracting action, therefore tunnel tow lift can complete luffing, the operation such as flexible in the situation that do not make a jack, and this tunnel tow lift completes the lifting to accident vehicle and lifting after operation, can make this tunnel tow lift in the situation that need not turning around, output tunnel by the rotation of swing type mechanism and four-wheel steering, the common realization in all-wheel powered chassis.
Other feature and advantage of the present utility model are described in detail the detailed description of the invention part subsequently.
Brief description of the drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms a part for specification sheets, is used from explanation the utility model, but does not form restriction of the present utility model with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the structural representation of the tunnel tow lift that provides of the utility model detailed description of the invention.(arm with lift all states in all stretching out of arm)
Fig. 2 is a kind of constitution diagram of the tunnel tow lift shown in Fig. 1.(arm with lift all states in whole retractions of arm, crotch is not shown)
Fig. 3 is the structural representation of the lift mechanism of the tunnel tow lift shown in Fig. 1.
Fig. 4 is the birds-eye view of the lift mechanism shown in Fig. 3.
Fig. 5 is the front view of the bracket of the lift mechanism shown in Fig. 3.
Fig. 6 is the birds-eye view of the bracket of the lift mechanism shown in Fig. 5.
Fig. 7 is the front view of the crotch of the lift mechanism shown in Fig. 3.
Fig. 8 is the birds-eye view of the bracket of the lift mechanism shown in Fig. 7.
Fig. 9 is the structural representation of the boom assembly of the tunnel tow lift shown in Fig. 1.
Figure 10 is the structural representation of the bracing frame of the tunnel tow lift that provides of the utility model detailed description of the invention.
Figure 11 is the structural representation of the travelling car of the support movable stand shown in Figure 10.
Figure 12 is the working state figure of the tunnel tow lift that provides of the utility model.(accident vehicle is without when rollover, the constitution diagram of the accident vehicle head of slinging)
Figure 13 is the working state figure of the tunnel tow lift that provides of the utility model.(accident vehicle, without when rollover, holds up the constitution diagram of accident vehicle head)
Figure 14 is the another working state figure of the tunnel tow lift that provides of the utility model.(when accident vehicle rollover, the constitution diagram of the accident vehicle head of slinging)
Figure 15 is the another working state figure of the tunnel tow lift that provides of the utility model.(when accident vehicle rollover, holding up the constitution diagram of accident vehicle head)
Description of reference numerals
10: boom assembly; 11: second section telescoping boom;
12: first segment telescoping boom; 13: basic arm;
20: driver's cab; 30: lift mechanism;
31: crotch; 32: bracket;
33: retractable driving device; 34: lift arm;
34a: substantially lift arm; 34b: the flexible arm of lifting of first segment;
34c: the flexible arm of lifting of second section; 35: crossbeam;
36: sliding driving device; 37: fixed guide;
38: rotating driving device; 39: vertically slide rail;
40: swing type mechanism; 50: chassis;
60: support movable stand; 61: link span;
62: travelling car; 100: tunnel tow lift;
110: accident vehicle.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is elaborated.Should be understood that, detailed description of the invention described herein only, for description and interpretation the utility model, is not limited to the utility model.
In the utility model, in the situation that not doing contrary explanation, the noun of locality of use typically refers to reference to upper and lower, left and right shown in the drawings as " upper and lower, left and right "; " inside and outside " refers to inside and outside with respect to the profile of each parts itself.
The utility model provides a kind of tunnel tow lift as shown in Figure 1 to Figure 2, and described tunnel tow lift 100 comprises boom assembly 10, lift mechanism 30, swing type mechanism 40 and chassis 50; Described swing type mechanism 40 is arranged on described chassis 50, described boom assembly 10 is connected with described swing type mechanism 40, the length of described boom assembly 10 be set in the time that this boom assembly 10 carries out luffing, expanding-contracting action described in chassis 50 can keep stable, and described tunnel tow lift 100 also comprises the lift mechanism 30 that can be arranged on up and down on described chassis 50, described chassis 50 is four-wheel steering, all-wheel powered chassis.Preferably, described chassis 50 is the chassis of four-wheel steering, four wheel drive.
The tunnel tow lift that the utility model provides is because chassis 50 can keep stable in the time that boom assembly 10 carries out luffing, expanding-contracting action, therefore tunnel tow lift can complete luffing, the operation such as flexible in the situation that do not make a jack, and this tunnel tow lift 100 completes the lifting to accident vehicle 110 and lifting after operation, can make this tunnel tow lift 100 in the situation that need not turning around, output tunnel by the rotation of swing type mechanism 40 and four-wheel steering, the common realization in all-wheel powered chassis.
Wherein, the implementation being arranged on described chassis 50 of described lift mechanism 30 liftings has multiple, for example realize the lifting of described lift mechanism 30 by bay-lift or realize the lifting of described lift mechanism 30 by rope being set above described lift mechanism 30, present embodiment realizes by vertical slide rail, described in specific as follows: as shown in Figure 3, wherein, described lift mechanism 30 comprises fixed guide 37, vertical slide rail 39, lifts arm 34, sliding driving device 36, retractable driving device 33, rotating driving device 38; Described fixed guide 37 is vertically arranged and this fixed guide 37 is connected with described chassis 50, described vertical slide rail 39 and described fixed guide 37 sliding block joints, described one end and the described vertical slide rail 39 of lifting arm 34 is hinged, described in lift arm 34 the other end in free state for lifting accident vehicle 110.Described sliding driving device 36 is arranged on described vertical slide rail 39 to drive described vertical slide rail 39 to slide along described fixed guide 37; Described rotating driving device 38 is lifted on arm 34 described in being installed in described retractable driving device 33, is respectively used to lift described in driving arm 34 and lifts arm 34 and hinge-point rotation of described vertical slide rail 39 and flexible along this length direction of lifting arm 34 for lifting arm 34 described in driving around this.Wherein, described rotating driving device 38 lift described in can driving arm 34 around the rotating range of described hinge-point for can be downward with respect to horizontal direction 5 ° to rotating up 90 ° with respect to horizontal direction.Preferably, described sliding driving device 36, retractable driving device 33 and rotating driving device 38 are hydraulic actuating cylinder, and described chassis 50 adopts hydraulic drive type chassis simultaneously.
As shown in Figure 4, according to embodiment of the present utility model, described tunnel tow lift 100 also comprises crossbeam 35, part between the two ends of described crossbeam 35 is fixed with the described other end of lifting arm 34, the two ends of described crossbeam 35 are respectively arranged with bracket 32(as shown in Figure 5 to Figure 6), described bracket 32 and described crossbeam 35 sliding block joints, be all provided with crotch 31(as shown in Fig. 7 to Fig. 8 on described bracket 32).Like this, in the course of the work, the distance between described bracket 32 can change by this bracket 32 in the slip on described crossbeam 35, to realize dissimilar accident vehicle.
Wherein, the described arm 34 of lifting comprises and substantially lifts flexible arm 34b and the flexible arm 34c that lifts of second section of lifting of arm 34a, first segment, describedly substantially lift arm 34a and described vertical slide rail 39 is hinged, describedly substantially lift that arm 34a, first segment are flexible lifts arm 34b and second section is flexible lifts arm 34c and be slidably socketed successively.When work, described in carrying out according to actual needs, lift the flexible of arm 34, certainly, described in lift arm 34 and be not limited to only include and substantially lift that arm 34a, first segment are flexible lifts arm 34b and second section is flexible lifts arm 34c tri-joints and lift arm, can set up again some joints according to actual conditions.
In addition, as shown in Figure 9, described boom assembly 10 comprises basic arm 13, first segment telescoping boom 12, second section telescoping boom 11; Described basic arm 13 is connected with described swing type mechanism 40, and described basic arm 13, first segment telescoping boom 12 and second section telescoping boom 11 are slidably socketed successively, described basic arm 13, first segment telescoping boom 12 and second section telescoping boom 11 are hexagon box type construction.Described boom assembly 10 can be the boom assembly of hoisting crane in prior art, here not at the concrete structure that repeats described boom assembly 10.
In the time that vehicle has an accident in tunnel, described tunnel tow lift 100 is reached to the scene of the accident, move ahead along accident vehicle axis direction, the in the situation that of permission in place, should, as far as possible near accident vehicle 110, open Warning light, with tire lifting (without making a jack).This freeway tunnel tow lift 100 is moved to before accident vehicle, and operation boom assembly 10, slings the head of accident vehicle 110 (as shown in figure 12).Operation lift mechanism 30 makes to lift arm 34 half-twists, is lifted accident vehicle 110 and made the liftoff 30cm～50cm of wheel of this accident vehicle 110 by described crotch 31.Adjust the distance between accident vehicle 110 and tunnel tow lift 100, in the situation that not affecting tunnel tow lift 100 and turning, dwindle the distance between tunnel tow lift 100 and accident vehicle 110 as far as possible, then with snubber chain or tie by accident vehicle 110 with described in lift arm 34 and toggle, the arm of retraction boom assembly 10.Owing to can not turning and turn around at tunnel inner tunnel tow lift 100, now can turn round after 180 ° (as shown in figure 13) by swing type mechanism 40, chaufeur can successfully roll tunnel tow lift 100 and accident vehicle 110 away from freeway tunnel.
Due to when rollover occurring in tunnel when vehicle, said structure is just difficult to accident vehicle fast speed to shift out tunnel, and the tunnel tow lift 100 therefore providing based on the problems referred to above the utility model also comprises that support movable stand 60 is as shown in figure 10 for supporting accident vehicle 110.Described support movable stand 60 comprises that link span 61 and at least two travelling car 62(are as shown in figure 11), these at least two described travelling cars 62 are separately positioned on the two ends of described link span 61.When use, described tunnel tow lift 100 is reached to the scene of the accident, move ahead along accident vehicle axis direction, the in the situation that of permission in place, should, as far as possible near accident vehicle 110, open Warning light, with tire lifting (without making a jack).Operate described boom assembly 10 and make the state of its arm in entirely stretching, first the afterbody of accident vehicle 110 is sling, then at the afterbody of accident vehicle 110, support movable stand 60 is placed on to the afterbody of accident vehicle 110.Mobile this tunnel tow lift 100 is to before accident vehicle 110 afterwards, the head of accident vehicle 110 is sling (as shown in figure 14), operation lift mechanism 30 makes to lift arm 34 half-twists, is lifted accident vehicle 110 and made the liftoff 30cm～50cm of wheel of this accident vehicle 110 by described crotch 31.Adjust the distance between accident vehicle 110 and tunnel tow lift 100, in the situation that not affecting tunnel tow lift 100 and turning, dwindle the distance between tunnel tow lift 100 and accident vehicle 110 as far as possible, then with snubber chain or tie by accident vehicle 110 with described in lift arm 34 and toggle, the arm of retraction boom assembly 10.Owing to can not turning and turn around at tunnel inner tunnel tow lift 100, now can turn round (as shown in figure 15) after 180 ° by swing type mechanism 40, chaufeur can roll tunnel tow lift 100 and accident vehicle 110 away from freeway tunnel smoothly.
In addition, described tunnel tow lift 100 also comprises driver's cab 20, and described driver's cab 20 is arranged on described swing type mechanism 40.
The tunnel tow lift that the utility model provides can meet the active demand of China's freeway tunnel rescue, it is long to improve tunnel rescue time, inefficient situation, and this tunnel tow lift is all-hydraulic tunnel tow lift, be specifically designed to the rescue of express highway super long tunnel, also can be used as general cross-country wheel-mounted crane simultaneously and use.The tunnel tow lift that the utility model provides also has band and carries driving functions.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition each the concrete technical characterictic described in above-mentioned detailed description of the invention, in reconcilable situation, can combine by any suitable mode.
In addition, also can carry out combination in any between various embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. a tunnel tow lift, described tunnel tow lift (100) comprises boom assembly (10), lift mechanism (30), swing type mechanism (40) and chassis (50); Described swing type mechanism (40) is arranged on described chassis (50), described boom assembly (10) is connected with described swing type mechanism (40), it is characterized in that, the length of described boom assembly (10) be set in the time that this boom assembly (10) carries out luffing, expanding-contracting action described in chassis (50) can keep stable, and described tunnel tow lift (100) also comprises the lift mechanism (30) that can be arranged on up and down on described chassis (50), described chassis (50) are four-wheel steering, all-wheel powered chassis.
2. tunnel according to claim 1 tow lift, it is characterized in that, described lift mechanism (30) comprises fixed guide (37), vertical slide rail (39), lifts arm (34), sliding driving device (36), retractable driving device (33), rotating driving device (38); Described fixed guide (37) is vertically arranged and this fixed guide (37) is connected with described chassis (50), described vertical slide rail (39) and described fixed guide (37) sliding block joint, described one end and the described vertical slide rail (39) of lifting arm (34) is hinged, and it is upper to drive described vertical slide rail (39) to slide along described fixed guide (37) that described sliding driving device (36) is arranged on described vertical slide rail (39); Described in described rotating driving device (38) and described retractable driving device (33) are installed in, lift arm (34) upper, be respectively used to lift described in driving arm (34) and lift arm (34) and hinge-point rotation of described vertical slide rail (39) and flexible along this length direction of lifting arm (34) for lifting arm (34) described in driving around this.
3. tunnel according to claim 2 tow lift, is characterized in that, described in lift arm (34) around the rotating range of described hinge-point for can be downward with respect to horizontal direction 5 ° to rotating up 90 ° with respect to horizontal direction.
4. tunnel according to claim 2 tow lift, it is characterized in that, this tunnel tow lift (100) also comprises crossbeam (35), part between the two ends of described crossbeam (35) is fixed with the described other end of lifting arm (34), the two ends of described crossbeam (35) are respectively arranged with bracket (32), described bracket (32) and described crossbeam (35) sliding block joint, be all provided with crotch (31) on described bracket (32).
5. tunnel according to claim 4 tow lift, it is characterized in that, the described arm (34) of lifting comprises that substantially lifting flexible arm (34b) and the second section lifted of arm (34a), first segment stretches and lift arm (34c), described arm (34a) and the described vertical slide rail (39) substantially lifted is hinged, and described flexible arm (34b) and the second section lifted of arm (34a), first segment of substantially lifting stretches and lift arm (34c) and be slidably socketed successively.
6. tunnel according to claim 2 tow lift, is characterized in that, described boom assembly (10) comprises basic arm (13), first segment telescoping boom (12), second section telescoping boom (11); Described basic arm (13) is connected with described swing type mechanism (40), and described basic arm (13), first segment telescoping boom (12) and second section telescoping boom (11) are slidably socketed successively, described basic arm (13), first segment telescoping boom (12) and second section telescoping boom (11) are hexagon box type construction.
7. tunnel according to claim 2 tow lift, is characterized in that, when described tunnel tow lift (100) also comprises vehicle rollover for supporting the support movable stand (60) of accident vehicle (110).
8. tunnel according to claim 7 tow lift, it is characterized in that, described support movable stand (60) comprises link span (61) and at least two travelling cars (62), and these at least two described travelling cars (62) are separately positioned on the two ends of described link span (61).
9. according to the tunnel tow lift described in claim 1-8 any one, it is characterized in that, described sliding driving device (36), retractable driving device (33) and rotating driving device (38) are hydraulic actuating cylinder, and described chassis (50) adopt hydraulic drive type chassis.
10. tunnel according to claim 9 tow lift, is characterized in that, described chassis (50) are the chassis of four-wheel steering, four wheel drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420178701.XU CN203807002U (en) | 2014-04-14 | 2014-04-14 | Recovery vehicle for tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420178701.XU CN203807002U (en) | 2014-04-14 | 2014-04-14 | Recovery vehicle for tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203807002U true CN203807002U (en) | 2014-09-03 |
Family
ID=51445787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420178701.XU Expired - Fee Related CN203807002U (en) | 2014-04-14 | 2014-04-14 | Recovery vehicle for tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203807002U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104340814A (en) * | 2014-11-19 | 2015-02-11 | 大连交通大学 | Outdoor people rescue elevator truck for fire hazard of super high-rise building |
| CN106256753A (en) * | 2015-06-19 | 2016-12-28 | 天津建筑机械厂 | A kind of multifunctional unit tool car |
| CN107172902A (en) * | 2017-06-13 | 2017-09-19 | 哈尔滨市农业科学院 | Can transverse translation bidirectional walking rotating disk commutation canopy room small power machine |
| CN109094446A (en) * | 2018-10-17 | 2018-12-28 | 宋国华 | A kind of special-purpose vehicle for rescue of removing obstacles |
| CN112225088A (en) * | 2020-12-14 | 2021-01-15 | 新乡纷呈机械科技有限公司 | Stable and efficient rollover-preventing crane and rollover-preventing method thereof |
-
2014
- 2014-04-14 CN CN201420178701.XU patent/CN203807002U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104340814A (en) * | 2014-11-19 | 2015-02-11 | 大连交通大学 | Outdoor people rescue elevator truck for fire hazard of super high-rise building |
| CN106256753A (en) * | 2015-06-19 | 2016-12-28 | 天津建筑机械厂 | A kind of multifunctional unit tool car |
| CN107172902A (en) * | 2017-06-13 | 2017-09-19 | 哈尔滨市农业科学院 | Can transverse translation bidirectional walking rotating disk commutation canopy room small power machine |
| CN109094446A (en) * | 2018-10-17 | 2018-12-28 | 宋国华 | A kind of special-purpose vehicle for rescue of removing obstacles |
| CN112225088A (en) * | 2020-12-14 | 2021-01-15 | 新乡纷呈机械科技有限公司 | Stable and efficient rollover-preventing crane and rollover-preventing method thereof |
| CN112225088B (en) * | 2020-12-14 | 2021-04-23 | 江西兴大鼎设备工程有限公司 | Stable and efficient rollover-preventing crane and rollover-preventing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20160414 |