CN111573560A - Mechanical non-return mechanism for lifting device of trailer - Google Patents
Mechanical non-return mechanism for lifting device of trailer Download PDFInfo
- Publication number
- CN111573560A CN111573560A CN202010400324.XA CN202010400324A CN111573560A CN 111573560 A CN111573560 A CN 111573560A CN 202010400324 A CN202010400324 A CN 202010400324A CN 111573560 A CN111573560 A CN 111573560A
- Authority
- CN
- China
- Prior art keywords
- correspondingly
- return
- lifting arm
- lifting
- platform
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F1/00—Ground or aircraft-carrier-deck installations
- B64F1/36—Other airport installations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
Abstract
A mechanical non-return mechanism for a trailer lifting device relates to the technical field of lifting platforms, and comprises a frame body, a lifting platform, a non-return device and a non-return unlocking device; the lifting platform is arranged at the top of the frame body and comprises a platform frame, an inner lifting arm, an outer lifting arm, a telescopic cylinder and two sliding rails correspondingly and fixedly connected with the top of the frame body, the platform frame is horizontally arranged, the inner lifting arm and the outer lifting arm are correspondingly and crossly hinged, the bottom end of the inner lifting arm is correspondingly hinged with one end of each sliding rail, the top end of the inner lifting arm is correspondingly and slidably connected with the inner side of one end of the platform frame, the bottom end of the outer lifting arm is provided with a movable shaft correspondingly and slidably connected with the sliding rails, and the top end of the outer lifting arm is correspondingly hinged with the inner side of the other end of the platform frame; the invention effectively solves the problem that the existing lifting device does not have a mechanical limiting function.
Description
Technical Field
The invention relates to the technical field of lifting platforms, in particular to a mechanical non-return mechanism for a lifting device of a trailer.
Background
As is known, a trailer is a guarantee vehicle for airborne weapons, and is used for hanging airborne weapons such as aircraft stores like air-to-air missiles, pod and the like; when the weapon carrier is used, a trailer for loading a weapon is pulled below an airplane hanger, and the weapon is lifted to a certain height and is mounted on a carrier by driving a lifting mechanism through a hydraulic system; during hanging, in order to ensure the safety of the hung weapon, a hydraulic system must be safe and reliable, and after training, an operator must perform standard operation in the lifting process, so as to avoid the damage to the weapon caused by sudden falling of the hung weapon due to hydraulic failure and misoperation; however, the existing trailer is not provided with a mechanical limiting device of the lifting mechanism, the limitation of the lifting mechanism is realized only by virtue of a hydraulic system, and the phenomenon that the lifting mechanism is accidentally descended due to the fact that an operator mistakenly operates a descending operation valve of the hydraulic system cannot be effectively avoided, which is a problem to be solved by the technical staff in the field.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses a mechanical non-return mechanism for a hanging vehicle lifting device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a mechanical non-return mechanism for a hanging truck lifting device comprises a truck frame body, a lifting platform, a non-return device and a non-return unlocking device; the lifting platform is arranged at the top of the frame body and comprises a platform frame, an inner lifting arm, an outer lifting arm, a telescopic cylinder and two sliding rails correspondingly and fixedly connected with the top of the frame body, the platform frame is horizontally arranged, the inner lifting arm and the outer lifting arm are correspondingly and crossly hinged, the bottom end of the inner lifting arm is correspondingly hinged with one end of each sliding rail, the top end of the inner lifting arm is correspondingly and slidably connected with the inner side of one end of the platform frame, a movable shaft which is correspondingly and slidably connected with each sliding rail is arranged at the bottom end of the outer lifting arm, the top end of the outer lifting arm is correspondingly hinged with the inner side of the other end of the platform frame, and the telescopic cylinder used for driving the platform frame to ascend or descend is connected between each movable shaft and the inner lifting arm;
the frame body is provided with a non-return device corresponding to the position between the two sliding rails, the non-return device comprises a non-return seat and two racks, the two racks are arranged at intervals and are parallel to the sliding rails correspondingly, one end of the non-return seat is hinged with the movable shaft correspondingly, and non-return teeth which can be correspondingly meshed with the two racks respectively are arranged on two sides of the other end of the non-return seat;
the non-return unlocking device comprises a supporting plate arranged between two racks, and a handle and a limiting plate which are arranged on one side of the frame body, wherein the supporting plate is parallel to the racks correspondingly, one end of a connecting rod I is hinged to the bottom of one end of the supporting plate, the other end of the connecting rod I is provided with a rotating shaft, the axis of the rotating shaft is perpendicular to the axis of the supporting plate in the length direction correspondingly, two ends of the rotating shaft are rotatably connected with a support I, and the two supports I are correspondingly and fixedly connected with the; the bottom of the other end of the supporting plate is hinged with one end of a connecting rod II, the other end of the connecting rod II is fixedly connected with one end of a transmission shaft, the axis of the transmission shaft is correspondingly vertical to the axis of the supporting plate in the length direction, two supports II which are correspondingly and fixedly connected with the frame body are movably sleeved on a shaft body of the transmission shaft, and the two supports II are arranged at intervals; the other end of the transmission shaft is correspondingly connected with one end of the handle, and the other end of the handle is provided with an elastic pin; the limiting plate corresponds the fastening connection with the frame body, and the face of limiting plate is equipped with the arc slide that corresponds with the elastic pin, and the both ends of this arc slide all are equipped with and are used for corresponding the locking hole of cooperation limited handle position with the elastic pin.
Preferably, the two ends of the movable shaft are respectively provided with a roller I which is correspondingly matched with the two slide rails in a rolling manner.
Preferably, the non return seat corresponds with the loose axle through articulated seat and articulates, articulated seat contains upper cover plate and lower apron, the one end of upper cover plate and lower apron all corresponds the fastening connection with the non return seat, and the other end of upper cover plate and lower apron all is equipped with the arc chamber corresponding with the loose axle diameter.
Preferably, the bottom of the end, deviating from the movable shaft, of the check seat is provided with a roller II capable of correspondingly contacting with the surface of the supporting plate.
Preferably, the shaft body of the transmission shaft is provided with a limiting stop pin corresponding to two sides of the support II.
Preferably, the connecting rod I is correspondingly and fixedly connected with the rotating shaft.
Preferably, the transmission shaft is correspondingly connected with the handle in a keyed mode.
Preferably, telescopic cylinders correspondingly hinged with the inner lifting arms are arranged on the two sides of the movable shaft corresponding to the check seats.
Preferably, the telescopic cylinder can be a hydraulic cylinder or an air cylinder.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the mechanical non-return mechanism for the hanging car lifting device is simple in structure, easy to assemble and low in production cost, the lifting platform is provided with the non-return unlocking device, and after the platform frame rises to the preset position, one end, provided with the non-return teeth, of the non-return seat can move downwards under the action of self gravity and is correspondingly meshed with the corresponding rack to limit the back of the non-return seat, so that the back of the movable shaft is limited, the downward movement of the platform frame is further limited, the accidental downward movement of the platform frame caused by misoperation of an operator can be effectively prevented, and the mechanical non-return mechanism is safe and reliable.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the elevating platform;
FIG. 3 is a schematic view of the unlocking device;
fig. 4 is a schematic structural view of the hinge seat.
In the figure: 1. a frame body; 2. a lifting platform; 2-1, a platform frame; 2-2, an inner lifting arm; 2-3, an external lifting arm; 2-4, a telescopic cylinder; 2-5, a slide rail; 2-6, a movable shaft; 2-7, a roller I; 3. a non-return device; 3-1, a check seat; 3-2, a rack; 3-3, non-return teeth; 4. a non-return unlocking device; 4-1, a support plate; 4-2, a handle; 4-3, limiting plates; 4-4, connecting rod I; 4-5, a rotating shaft; 4-6, a support I; 4-7, connecting rod II; 4-8, a transmission shaft; 4-9, elastic pin; 4-10, arc slideway; 4-11, locking holes; 4-12 and a support II; 4-13, roller II; 4-14, limit stop pin; 5. a hinged seat; 5-1, an upper cover plate; 5-2, a lower cover plate; 5-3 arc-shaped cavities.
Detailed Description
The present invention will be explained in detail by the following examples, which are disclosed for the purpose of protecting all technical improvements within the scope of the present invention.
With reference to the attached drawings 1-4, the mechanical non-return mechanism for the hanging car lifting device comprises a car frame body 1, a lifting platform 2, a non-return device 3 and a non-return unlocking device 4; the top of the frame body 1 is provided with a lifting platform 2, the lifting platform 2 comprises a platform frame 2-1, an inner lifting arm 2-2, an outer lifting arm 2-3, a telescopic cylinder 2-4 and two sliding rails 2-5 correspondingly and fixedly connected with the top of the frame body 1, the platform frame 2-1 is horizontally arranged, the inner lifting arm 2-2 and the outer lifting arm 2-3 are correspondingly and crossly hinged, the bottom end of the inner lifting arm 2-2 is correspondingly hinged with one end of the sliding rail 2-5, the top end of the inner lifting arm 2-2 is correspondingly and slidably connected with the inner side of one end of the platform frame 2-1, and the bottom end of the outer lifting arm 2-3 is provided with a movable shaft 2-6 correspondingly and slidably connected with the two sliding rails 2-5; according to the requirement, two ends of the movable shaft 2-6 are respectively provided with a roller I2-7 which is correspondingly matched with the two slide rails 2-5 in a rolling way, and the roller I2-7 can effectively reduce the friction force between the movable shaft 2-6 and the slide rails 2-5, so that the smooth and stable lifting of the lifting platform 2 is ensured; the top end of the outer lifting arm 2-3 is hinged with the inner side of the other end of the platform frame 2-1, a telescopic cylinder 2-4 for driving the platform frame 2-1 to ascend or descend is connected between the movable shaft 2-6 and the inner lifting arm 2-2, namely the telescopic end of the telescopic cylinder 2-4 extends, so that the movable shaft 2-6 can move along a slide rail 2-5 close to the bottom end of the inner lifting arm 2-2, and meanwhile, the top end of the inner lifting arm 2-2 moves along the inner side of the platform frame 2-1 close to the top end of the outer lifting arm 2-3, so that the platform frame 2-1 can ascend; otherwise, the platform frame 2-1 moves downwards;
a non-return device 3 is arranged at a position, corresponding to the position between the two sliding rails 2-5, of the frame body 1, the non-return device 3 comprises a non-return seat 3-1 and two racks 3-2, the two racks 3-2 are arranged at intervals, the two racks 3-2 are correspondingly parallel to the sliding rails 2-5, and one end of the non-return seat 3-1 is correspondingly hinged to the movable shaft 2-6; according to the requirement, the non-return seat 3-1 is correspondingly hinged with the movable shaft 2-6 through a hinge seat 5, the hinge seat 5 comprises an upper cover plate 5-1 and a lower cover plate 5-2, one end of the upper cover plate 5-1 and one end of the lower cover plate 5-2 are correspondingly and fixedly connected with the non-return seat 3-1, and the other end of the upper cover plate 5-1 and the other end of the lower cover plate 5-2 are respectively provided with an arc-shaped cavity 5-3 corresponding to the shaft diameter of the movable shaft 2-6, so that the connecting structure is simple, and the assembly operation of an operator is facilitated; two sides of the other end of the non-return seat 3-1 are provided with non-return teeth 3-3 which can be correspondingly meshed with the two racks 3-2 respectively, namely one end of the non-return seat 3-1 provided with the non-return teeth 3-3 can move downwards under the action of self gravity and is correspondingly meshed with the corresponding racks 3-2 to limit the back of the non-return seat 3-1, so that the back of the movable shaft 2-6 is limited, the downward movement of the platform frame 2-1 is further limited, and the accidental downward movement of the platform frame 2-1 caused by misoperation of an operator can be effectively prevented;
the non-return unlocking device 4 comprises a supporting plate 4-1 arranged between two racks 3-2, and a handle 4-2 and a limiting plate 4-3 arranged on one side of the frame body 1, wherein the supporting plate 4-1 is correspondingly parallel to the racks 3-2, the bottom of one end of the supporting plate 4-1 is hinged with one end of a connecting rod I4-4, and the other end of the connecting rod I4-4 is provided with a rotating shaft 4-5 of which the axis is correspondingly vertical to the axis of the supporting plate 4-1 in the length direction; according to the requirement, the connecting rod I4-4 is correspondingly and fixedly connected with the rotating shaft 4-5; two ends of the rotating shaft 4-5 are rotatably connected with supports I4-6, and the two supports I4-6 are correspondingly and fixedly connected with the frame body 1; the bottom of the other end of the support plate 4-1 is hinged with one end of a connecting rod II 4-7, the other end of the connecting rod II 4-7 is fixedly connected with one end of a transmission shaft 4-8, the axis of the transmission shaft 4-8 is correspondingly vertical to the axis of the support plate 4-1 in the length direction, two supports II 4-13 which correspond to and are fixedly connected with the frame body 1 are movably sleeved on the shaft body of the transmission shaft 4-8, and the two supports II 4-12 are arranged at intervals; according to the requirement, two sides of the shaft body of the transmission shaft 4-8, which correspond to the supports II 4-12, are respectively provided with a limiting stop pin 4-14, and the limiting stop pins 4-14 can effectively limit the axial movement of the transmission shaft 4-8; the other end of the transmission shaft 4-8 is correspondingly connected with one end of the handle 4-2, and the other end of the handle 4-2 is provided with an elastic pin 4-9; according to the requirement, the transmission shaft 4-8 is correspondingly connected with the handle 4-2 in a bonding manner, so that the connecting structure is simple and the installation is convenient; the limiting plate 4-3 is correspondingly and tightly connected with the frame body 1, the plate surface of the limiting plate 4-3 is provided with an arc-shaped slideway 4-10 corresponding to the elastic pin 4-9, two ends of the arc-shaped slideway 4-10 are respectively provided with a locking hole 4-11 used for being matched with the elastic pin 4-9 to limit the position of the handle 4-2, namely, an operator can drive the handle 4-2 through the elastic pin 4-9, the handle 4-2 drives the transmission shaft 4-8 to rotate, the transmission shaft 4-8 drives the connecting rod II 4-7 to rotate, so as to control the ascending or descending of the supporting plate 4-1, when the supporting plate 4-1 ascends, the check seat 3-1 can be jacked, so that the check tooth 3-3 is separated from the meshing relation with the rack 3-2, even if the check tooth 3-3 is suspended, thereby realizing the purpose of unlocking;
in addition, the bottom of one end of the non-return seat 3-1, which is far away from the movable shaft 2-6, is provided with a roller II 4-13 which can be correspondingly contacted with the surface of the support plate 4-1, namely the roller II 4-13 can effectively reduce the friction force between the non-return seat 3-1 and the support plate 4-1, and can effectively reduce the burden of an operator when the operator operates the handle 4-2; the two sides of the movable shaft 2-6 corresponding to the non-return seat 3-1 are respectively provided with a telescopic cylinder 2-4 correspondingly hinged with the inner lifting arm 2-2, the two telescopic cylinders 2-4 can effectively improve the lifting capacity of the platform frame 2-1, and the telescopic cylinders 2-4 can be hydraulic cylinders or air cylinders.
When the mechanical non-return mechanism for the hanging car lifting device is implemented, the extension or the shortening of the telescopic cylinder 2-4 can be controlled, the ascending or the descending of the platform frame 2-1 is controlled, namely the extension of the telescopic end of the telescopic cylinder 2-4 is controlled, the movable shaft 2-6 can move along the slide rail 2-5 close to the bottom end of the inner lifting arm 2-2, meanwhile, the top end of the inner lifting arm 2-2 moves along the inner side of the platform frame 2-1 close to the top end of the outer lifting arm 2-3, and the platform frame 2-1 can ascend; otherwise, the platform frame 2-1 moves downwards; when the platform frame 2-1 is lifted to a preset position, one end of the non-return seat 3-1, which is provided with the non-return teeth 3-3, can move downwards under the action of self gravity and is correspondingly meshed with the corresponding rack 3-2 to limit the back of the non-return seat 3-1, so that the back of the movable shaft 2-6 is limited, the downward movement of the platform frame 2-1 is further limited, and the accidental downward movement of the platform frame 2-1 caused by misoperation of an operator can be effectively prevented; when the non-return limit needs to be unlocked, an operator can drive the handle 4-2 through the elastic pin 4-9, the handle 4-2 drives the transmission shaft 4-8 to rotate, the transmission shaft 4-8 drives the connecting rod II 4-7 to rotate, so that the lifting or descending of the supporting plate 4-1 is controlled, and the non-return seat 3-1 can be jacked up when the supporting plate 4-1 is lifted, so that the non-return teeth 3-3 are separated from the meshing relation with the rack 3-2, even if the non-return teeth 3-3 are suspended, and the purpose of unlocking is achieved.
The present invention is not described in detail in the prior art.
Claims (9)
1. The utility model provides a mechanical non return mechanism for hanging loading car lifting device, contains frame body (1), characterized by: the device also comprises a lifting platform (2), a non-return device (3) and a non-return unlocking device (4); the lifting platform (2) is arranged at the top of the frame body (1), the lifting platform (2) comprises a platform frame (2-1), an inner lifting arm (2-2), an outer lifting arm (2-3), a telescopic cylinder (2-4) and two sliding rails (2-5) correspondingly and fixedly connected with the top of the frame body (1), the platform frame (2-1) is horizontally arranged, the inner lifting arm (2-2) and the outer lifting arm (2-3) are correspondingly and crossly hinged, the bottom end of the inner lifting arm (2-2) is correspondingly hinged with one end of the sliding rail (2-5), the top end of the inner lifting arm (2-2) is correspondingly and slidably connected with the inner side of one end of the platform frame (2-1), the bottom end of the outer lifting arm (2-3) is provided with a movable shaft (2-6) correspondingly and slidably connected with the sliding rails (2-5), the top end of the outer lifting arm (2-3) is hinged with the inner side of the other end of the platform frame (2-1), and a telescopic cylinder (2-4) for driving the platform frame (2-1) to ascend or descend is connected between the movable shaft (2-6) and the inner lifting arm (2-2);
the frame body (1) is provided with a non-return device (3) corresponding to the position between the two sliding rails (2-5), the non-return device (3) comprises a non-return seat (3-1) and two racks (3-2), the two racks (3-2) are arranged at intervals, the two racks (3-2) are correspondingly parallel to the sliding rails (2-5), one end of the non-return seat (3-1) is correspondingly hinged with the movable shaft (2-6), and non-return teeth (3-3) capable of being correspondingly meshed with the two racks (3-2) are arranged on two sides of the other end of the non-return seat (3-1);
the non-return unlocking device (4) comprises a supporting plate (4-1) arranged between two racks (3-2), a handle (4-2) and a limiting plate (4-3), wherein the handle (4-2) and the limiting plate (4-3) are arranged on one side of the frame body (1), the supporting plate (4-1) is correspondingly parallel to the racks (3-2), one end of the supporting plate (4-1) is hinged to the bottom of one end of the connecting rod I (4-4), the other end of the connecting rod I (4-4) is provided with a rotating shaft (4-5) of which the axis is correspondingly vertical to the axis of the supporting plate (4-1) in the length direction, two ends of the rotating shaft (4-5) are rotatably connected with supports I (4-6), and the two supports I (4-6); the bottom of the other end of the supporting plate (4-1) is hinged with one end of a connecting rod II (4-7), the other end of the connecting rod II (4-7) is fixedly connected with one end of a transmission shaft (4-8), the axis of the transmission shaft (4-8) is correspondingly vertical to the axis of the supporting plate (4-1) in the length direction, two supports II (4-13) which are correspondingly and fixedly connected with the frame body (1) are movably sleeved on the shaft body of the transmission shaft (4-8), and the two supports II (4-12) are arranged at intervals; the other end of the transmission shaft (4-8) is correspondingly connected with one end of the handle (4-2), and the other end of the handle (4-2) is provided with an elastic pin (4-9); the limiting plate (4-3) is correspondingly and fixedly connected with the frame body (1), the plate surface of the limiting plate (4-3) is provided with an arc-shaped slideway (4-10) corresponding to the elastic pin (4-9), and two ends of the arc-shaped slideway (4-10) are respectively provided with a locking hole (4-11) used for being correspondingly matched with the elastic pin (4-9) to limit the position of the handle (4-2).
2. A mechanical non-return mechanism for a trailer lifting device as claimed in claim 1, wherein: two ends of the movable shaft (2-6) are respectively provided with a roller I (2-7) which is correspondingly matched with the two slide rails (2-5) in a rolling way.
3. A mechanical non-return mechanism for a trailer lifting device as claimed in claim 1, wherein: non return seat (3-1) correspond with loose axle (2-6) through articulated seat (5) and articulate, articulated seat (5) contain upper cover plate (5-1) and apron (5-2) down, the one end of upper cover plate (5-1) and apron (5-2) down all corresponds the fastening connection with non return seat (3-1), and the other end of upper cover plate (5-1) and apron (5-2) down all is equipped with arc chamber (5-3) corresponding with loose axle (2-6) axle footpath.
4. A mechanical non-return mechanism for a trailer lifting device as claimed in claim 1, wherein: and the bottom of one end of the non-return seat (3-1) departing from the movable shaft (2-6) is provided with a roller II (4-13) which can be correspondingly contacted with the surface of the support plate (4-1).
5. A mechanical non-return mechanism for a trailer lifting device as claimed in claim 1, wherein: and limiting stop pins (4-14) are arranged on the shaft body of the transmission shaft (4-8) and correspond to the two sides of the support II (4-12).
6. A mechanical non-return mechanism for a trailer lifting device as claimed in claim 1, wherein: the connecting rod I (4-4) is correspondingly and fixedly connected with the rotating shaft (4-5).
7. A mechanical non-return mechanism for a trailer lifting device as claimed in claim 1, wherein: the transmission shaft (4-8) is correspondingly connected with the handle (4-2) in a bonding way.
8. A mechanical non-return mechanism for a trailer lifting device as claimed in claim 1, wherein: and telescopic cylinders (2-4) which are correspondingly hinged with the inner lifting arms (2-2) are arranged on the two sides of the movable shafts (2-6) corresponding to the check seats (3-1).
9. A mechanical non-return mechanism for a trailer lifting device as claimed in claim 1 or 8, characterised by: the telescopic cylinders (2-4) can be hydraulic cylinders or air cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010400324.XA CN111573560B (en) | 2020-05-13 | 2020-05-13 | Mechanical non-return mechanism for lifting device of trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010400324.XA CN111573560B (en) | 2020-05-13 | 2020-05-13 | Mechanical non-return mechanism for lifting device of trailer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111573560A true CN111573560A (en) | 2020-08-25 |
| CN111573560B CN111573560B (en) | 2021-10-15 |
Family
ID=72120826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010400324.XA Active CN111573560B (en) | 2020-05-13 | 2020-05-13 | Mechanical non-return mechanism for lifting device of trailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111573560B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131514A (en) * | 2021-12-24 | 2022-03-04 | 洛阳汇成钢结构有限公司 | Hydraulic automatic steel beam shot blasting feeding machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29815973U1 (en) * | 1998-09-09 | 1998-12-03 | Herkules Hebetechnik Gmbh | Lifting platform, in particular motor vehicle lifting platform |
| CN203959208U (en) * | 2014-06-19 | 2014-11-26 | 诸暨市吉丰纺织厂 | Slide plate travel line and bay-lift self-locking device thereof |
| CN105019930A (en) * | 2015-07-02 | 2015-11-04 | 平煤神马机械装备集团河南矿机有限公司 | Mining hydraulic support assembly platform |
| US20160107868A1 (en) * | 2014-10-17 | 2016-04-21 | Harry H. Arzouman | Locking lift arms safety mechanism for a lifting device-power unit |
-
2020
- 2020-05-13 CN CN202010400324.XA patent/CN111573560B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29815973U1 (en) * | 1998-09-09 | 1998-12-03 | Herkules Hebetechnik Gmbh | Lifting platform, in particular motor vehicle lifting platform |
| CN203959208U (en) * | 2014-06-19 | 2014-11-26 | 诸暨市吉丰纺织厂 | Slide plate travel line and bay-lift self-locking device thereof |
| US20160107868A1 (en) * | 2014-10-17 | 2016-04-21 | Harry H. Arzouman | Locking lift arms safety mechanism for a lifting device-power unit |
| CN105019930A (en) * | 2015-07-02 | 2015-11-04 | 平煤神马机械装备集团河南矿机有限公司 | Mining hydraulic support assembly platform |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131514A (en) * | 2021-12-24 | 2022-03-04 | 洛阳汇成钢结构有限公司 | Hydraulic automatic steel beam shot blasting feeding machine |
| CN114131514B (en) * | 2021-12-24 | 2023-09-05 | 洛阳汇成钢结构有限公司 | Steel beam shot blasting hydraulic automatic feeding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111573560B (en) | 2021-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111573560B (en) | Mechanical non-return mechanism for lifting device of trailer | |
| EP3950458A1 (en) | Boarding auxiliary device of rail vehicle | |
| CN110683447A (en) | Safe lifter capable of being installed by tool for house building construction | |
| CN204400442U (en) | Motor bogie suspender | |
| CN113830709B (en) | Double-rotation telescopic amplitude-variable lifting platform, leveling mechanism hydraulic system and control method | |
| CN209922839U (en) | Rail overhead working truck | |
| CA1279309C (en) | Jack assembly for railroad cars | |
| CN216945824U (en) | Lifting appliance for cylinder cover | |
| CN211076382U (en) | Missile hanging vehicle | |
| CN214885960U (en) | Anti-falling lifting parking device | |
| CN210152359U (en) | Vertical lifting type hanging rack assembly for stereo garage | |
| CN213742636U (en) | Integrative tent of car side | |
| CN211769624U (en) | Jump-layer type automobile metal plate hanging and transferring system | |
| CN113929031A (en) | Mine lifting device with high safety performance | |
| CN218039369U (en) | Battery isobaric device of stewing that prevents falling | |
| CN110817655A (en) | Skip layer type automobile metal plate hanging and transferring system | |
| CN220348362U (en) | Maintenance platform for subway rail vehicle | |
| CN107697861B (en) | Intelligent component cabinet of substation air-conditioning replaces auxiliary device | |
| CN220283499U (en) | High auto repair emergency support of factor of safety | |
| CN218520960U (en) | Telescopic hoisting device | |
| CN219839341U (en) | Turnover pedal door of construction elevator | |
| CN212473408U (en) | Lifting heavy-load hydraulic support leg for engineering vehicle | |
| CN216235937U (en) | Mine lifting device with high safety performance | |
| CN109747513A (en) | A kind of safety stay bar device and the dumper using the device | |
| CN216584064U (en) | Lift for lighting installation engineering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |