CN220867019U - Amplitude-variable lifting mechanism - Google Patents
Amplitude-variable lifting mechanism Download PDFInfo
- Publication number
- CN220867019U CN220867019U CN202322340426.9U CN202322340426U CN220867019U CN 220867019 U CN220867019 U CN 220867019U CN 202322340426 U CN202322340426 U CN 202322340426U CN 220867019 U CN220867019 U CN 220867019U
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- Prior art keywords
- amplitude
- variable
- oil cylinder
- bracket
- lifting
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- 230000007246 mechanism Effects 0.000 title claims abstract description 51
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 239000003921 oil Substances 0.000 description 31
- 230000001360 synchronised effect Effects 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model relates to the technical field of amplitude-variable lifting, and discloses an amplitude-variable lifting mechanism, which comprises a lifting mechanism and an amplitude-variable bracket; according to the utility model, the variable amplitude oil cylinder fixing part and the variable amplitude bracket in the lifting mechanism are connected through the first pin shaft, so that the variable amplitude oil cylinder telescopic part can lift the variable amplitude bracket movable part, the two groups of triangular structures of the variable amplitude bracket movable part can provide stable supporting force for the bottom of the lifting platform, the variable amplitude bracket is unfolded and folded, the variable amplitude action of the lifting platform is realized, the electromagnetic unloading balance valve is arranged on the variable amplitude oil cylinder for ensuring safety, the variable amplitude oil cylinder can be locked under the condition that the power mechanism fails, and can be effectively unfolded and folded in an electric and manual mode.
Description
Technical Field
The utility model relates to the technical field of amplitude-variable lifting, in particular to an amplitude-variable lifting mechanism.
Background
In order to realize automatic lifting of equipment, a ramp platform is usually subjected to amplitude-variable lifting in an amplitude-variable lifting mode, such as an existing van, and the bottom of a van body is subjected to amplitude-variable lifting through a lifting mechanism.
The existing amplitude-variable lifting mechanism mostly adopts an oil cylinder direct-pushing type lifting mechanism (shown in the following figure 5), and the lifting force of an oil cylinder required by a type of lifting is large; the stroke of the oil cylinder required by lifting is large, the stability is poor, the cost is high, and the oil cylinder is arranged in a large space of the direct pushing type lifting mechanism, so that the occupied space is large.
Disclosure of utility model
The utility model aims to provide an amplitude-variable lifting mechanism, which solves the problems that the existing amplitude-variable lifting mechanism is overlarge in lifting force, large in stroke of a required oil cylinder, poor in stability and large in occupied space.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the amplitude-variable lifting mechanism comprises a lifting mechanism, and further comprises an amplitude-variable support, wherein the middle part of the amplitude-variable support is movably connected with an amplitude-variable oil cylinder, an electromagnetic unloading balance valve is arranged on the amplitude-variable oil cylinder, the middle part of the movable end of the amplitude-variable support is connected with a second pin shaft in a penetrating manner, and the telescopic end of the amplitude-variable oil cylinder is connected with the middle part of the periphery of the second pin shaft in a rotating manner.
Preferably, the lifting platform is arranged at the top of the lifting mechanism, a fixed end is arranged at one side of the fixed part of the amplitude varying bracket, and the movable part of the amplitude varying bracket is of a triangular structure.
Preferably, a first pin shaft is fixedly arranged on one side of the top surface of the amplitude variation bracket fixing part, and the amplitude variation oil cylinder fixing part is rotationally connected to the middle part of the periphery of the first pin shaft.
Preferably, the connection part of the amplitude-variable bracket fixing part and the movable part is connected with a second connecting shaft in a penetrating way, and the amplitude-variable bracket is of a folding structure.
Preferably, one side of the two groups of variable amplitude bracket movable parts is connected with a first connecting shaft in a penetrating way, and the variable amplitude bracket movable parts are connected with the lifting platform through the first connecting shaft.
Preferably, the electromagnetic unloading balance valve is used for locking and positioning the amplitude-variable oil cylinder.
Compared with the prior art, the utility model has the beneficial effects that:
According to the utility model, the amplitude-variable oil cylinder fixing part and the amplitude-variable support in the lifting mechanism are connected by adopting the first pin shaft, and the amplitude-variable support is connected with the bottom of the lifting platform by the first connecting shaft, so that the flexible part of the amplitude-variable oil cylinder can lift the movable part of the amplitude-variable support, the two groups of triangular structures of the movable part of the amplitude-variable support can provide stable supporting force for the bottom of the lifting platform, the amplitude-variable support can be unfolded and folded, the amplitude-variable action of the lifting platform is realized, and the electromagnetic unloading balance valve is arranged on the amplitude-variable oil cylinder for ensuring safety, can be locked under the condition that the power mechanism fails, and can be effectively withdrawn in an electric mode and a manual mode;
Compared with the existing amplitude-variable lifting mechanism, the amplitude-variable oil cylinder can be unfolded and folded in a matched mode with the amplitude-variable support, and the hydraulic oil cylinder is synchronously matched with the amplitude-variable support, so that the lifting mechanism can be synchronously folded, and the occupied area is reduced.
Drawings
FIG. 1 is a schematic diagram of the working structure of the present utility model;
FIG. 2 is a schematic diagram of an assembled structure of the present utility model;
FIG. 3 is a schematic view of a lifting mechanism according to the present utility model;
FIG. 4 is a schematic view of the expanding structure of the lifting mechanism in the utility model;
fig. 5 is a schematic view of a conventional luffing lifting mechanism.
In the figure: 1. a lifting mechanism; 2. lifting the platform; 11. a luffing support; 12. a fixed end; 13. a first pin; 14. a luffing cylinder; 15. an electromagnetic unloading balance valve; 16. a first connecting shaft; 17. a second connecting shaft; 18. and a second pin.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown.
Referring to fig. 1-5, the present utility model provides a technical solution: the amplitude-variable lifting mechanism comprises a lifting mechanism 1, wherein the lifting mechanism 1 also comprises an amplitude-variable bracket 11, and the middle part of the amplitude-variable bracket 11 is movably connected with an amplitude-variable oil cylinder 14;
An electromagnetic unloading balance valve 15 is arranged on the luffing cylinder 14, a second pin shaft 18 is connected in a penetrating manner at the middle part of the movable end of the luffing bracket 11, and the telescopic end of the luffing cylinder 14 is connected in a rotating manner at the middle part of the periphery of the second pin shaft 18.
As shown in fig. 5 of the specification, most of the existing variable-amplitude lifting mechanisms 1 adopt a hydraulic part inclined with a lifting surface for lifting, the lifting force of the required oil cylinder is larger, the lifting mechanism 1 adopts a hydraulic part vertical to the lifting surface for lifting, the stroke of the required oil cylinder is larger, the stability is poor, and the oil cylinder is arranged in a larger space for direct pushing type lifting, so that a larger area is occupied;
a fixed end 12 arranged at one side of the fixed part of the amplitude bracket 11 can be connected with an upper truss and a lower truss of the bottom platform by adopting a pin shaft;
The fixed part of the amplitude changing oil cylinder 14 in the lifting mechanism 1 is connected with the amplitude changing support 11 through a first pin shaft 13, the amplitude changing support 11 is connected with the bottom of the lifting platform 2 through a first connecting shaft 16, so that the telescopic part of the amplitude changing oil cylinder 14 can lift the movable part of the amplitude changing support 11, the two groups of triangular structures of the movable part of the amplitude changing support 11 can provide stable supporting force for the bottom of the lifting platform 2, the amplitude changing support 11 can be unfolded and folded, the amplitude changing action of the lifting platform 2 is realized, and in order to ensure safety, the amplitude changing oil cylinder 14 is provided with an electromagnetic unloading balance valve 15, the electromagnetic unloading balance valve can be locked under the condition that a power mechanism fails, and can be effectively unfolded and folded in an electric mode and a manual mode;
Compared with the existing luffing lifting mechanism 1, the luffing cylinder 14 can be unfolded and folded by matching with the luffing support 11, and the lifting mechanism 1 can be synchronously folded by adopting synchronous matching of the hydraulic cylinder and the luffing support 11, so that the occupied area is reduced;
The lifting platform 2 is arranged at the top of the lifting mechanism 1, a fixed end 12 is arranged on one side of a fixed part of the amplitude changing support 11, a movable part of the amplitude changing support 11 is of a triangular structure, a first pin shaft 13 is fixedly arranged on one side of the top surface of the fixed part of the amplitude changing support 11, a fixed part of an amplitude changing oil cylinder 14 is rotatably connected to the middle part of the periphery of the first pin shaft 13, a second connecting shaft 17 is connected to the joint of the fixed part of the amplitude changing support 11 and the movable part in a penetrating manner, the amplitude changing support 11 is of a folding structure, the fixed part of the amplitude changing oil cylinder 14 in the lifting mechanism 1 is connected with the amplitude changing support 11 through the first pin shaft 13, and the triangular structure of the movable part of the amplitude changing support 11 is pushed to be unfolded and folded through synchronous cooperation of the hydraulic oil cylinder and the amplitude changing support 11, so that amplitude changing action of the lifting platform 2 is realized.
The movable parts of the two groups of amplitude changing brackets 11 are connected with the lifting platform 2 in a penetrating way through a first connecting shaft 16, the movable parts of the amplitude changing brackets 11 are connected with the lifting platform 2 through the first connecting shaft 16, an electromagnetic unloading balance valve 15 is used for locking and positioning an amplitude changing oil cylinder 14, and the amplitude changing oil cylinder 14 is provided with the electromagnetic unloading balance valve 15 for ensuring safety, so that the amplitude changing oil cylinder can be locked under the condition that an oil cylinder power mechanism fails, and can be effectively retracted in an electric mode and a manual mode.
Working principle: when the lifting mechanism 1 is installed, a fixed end 12 arranged on one side of a fixed part of a luffing support 11 in the lifting mechanism 1 is connected with an upper truss and a lower truss of a bottom platform through a pin shaft, then a movable part of the luffing support 11 is connected with the bottom of the lifting platform 2 through a first connecting shaft 16 in a penetrating way, and a telescopic end of a luffing cylinder 14 is rotatably connected with a second pin shaft 18 in the middle of the luffing support 12;
When the amplitude changing oil cylinder 14 in the lifting mechanism 1 works, the telescopic part of the amplitude changing oil cylinder 14 can lift the movable part of the amplitude changing support 11, so that two groups of triangular structures of the movable part of the amplitude changing support 11 can provide stable supporting force for the bottom of the lifting platform 2, the amplitude changing support 11 is unfolded and folded, amplitude changing action of the lifting platform 2 is realized, the amplitude changing oil cylinder 14 can be unfolded and folded by matching with the amplitude changing support 11, synchronous folding of the lifting mechanism 1 can be realized by adopting synchronous matching of a hydraulic oil cylinder and the amplitude changing support 11, the occupied area is reduced, and in order to ensure safety, the amplitude changing oil cylinder 14 is provided with an electromagnetic unloading balance valve 15, and the electromagnetic type lifting mechanism can be locked under the condition that a power mechanism fails and can be effectively unfolded in an electric mode and a manual mode.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the principles of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Amplitude-variable lifting mechanism, including lifting mechanism (1), its characterized in that: the lifting mechanism (1) further comprises an amplitude varying support (11), the middle of the amplitude varying support (11) is movably connected with an amplitude varying oil cylinder (14), an electromagnetic unloading balance valve (15) is arranged on the amplitude varying oil cylinder (14), the middle of the movable end of the amplitude varying support (11) is connected with a second pin shaft (18) in a penetrating manner, and the telescopic end of the amplitude varying oil cylinder (14) is rotatably connected with the middle of the periphery of the second pin shaft (18).
2. A luffing lift mechanism as recited in claim 1, wherein: the lifting platform (2) is arranged at the top of the lifting mechanism (1), a fixed end (12) is arranged on one side of the fixed part of the amplitude-variable bracket (11), and the movable part of the amplitude-variable bracket (11) is of a triangular structure.
3. A luffing lift mechanism as recited in claim 1, wherein: a first pin shaft (13) is fixedly arranged on one side of the top surface of the fixed part of the amplitude variation bracket (11), and the fixed part of the amplitude variation oil cylinder (14) is rotationally connected to the middle part of the periphery of the first pin shaft (13).
4. A luffing lift mechanism as recited in claim 1, wherein: the connection part of the fixed part and the movable part of the amplitude-variable bracket (11) is connected with a second connecting shaft (17) in a penetrating way, and the amplitude-variable bracket (11) is of a folding structure.
5. A luffing lift mechanism as recited in claim 2, wherein: one side of the movable part of each variable amplitude bracket (11) is connected with a first connecting shaft (16) in a penetrating way, and the movable parts of the variable amplitude brackets (11) are connected with the lifting platform (2) through the first connecting shafts (16).
6. A luffing lift mechanism as recited in claim 1, wherein: the electromagnetic unloading balance valve (15) is used for locking and positioning the amplitude variable oil cylinder (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322340426.9U CN220867019U (en) | 2023-08-30 | 2023-08-30 | Amplitude-variable lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322340426.9U CN220867019U (en) | 2023-08-30 | 2023-08-30 | Amplitude-variable lifting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220867019U true CN220867019U (en) | 2024-04-30 |
Family
ID=90811277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322340426.9U Active CN220867019U (en) | 2023-08-30 | 2023-08-30 | Amplitude-variable lifting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220867019U (en) |
-
2023
- 2023-08-30 CN CN202322340426.9U patent/CN220867019U/en active Active
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