CN114151409A - Landing leg hydraulic cylinder structure and fire engine - Google Patents
Landing leg hydraulic cylinder structure and fire engine Download PDFInfo
- Publication number
- CN114151409A CN114151409A CN202111492154.3A CN202111492154A CN114151409A CN 114151409 A CN114151409 A CN 114151409A CN 202111492154 A CN202111492154 A CN 202111492154A CN 114151409 A CN114151409 A CN 114151409A
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- CN
- China
- Prior art keywords
- pressing block
- cylinder
- hydraulic cylinder
- flange
- cylinder body
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C27/00—Fire-fighting land vehicles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1428—Cylinders
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a supporting leg hydraulic cylinder structure and a fire engine, which comprise a cylinder body, a rod body arranged in the cylinder body, a flange arranged on the cylinder body, a pressing block and a nylon block, wherein the pressing block is arranged on the cylinder body; the flange is welded on the cylinder body, the pressing block is fixedly connected with the flange through a bolt, and the nylon block is fixed on the pressing block through a screw. According to the supporting leg hydraulic cylinder structure, the conventional modes of fixing the piston rod and extending the cylinder barrel are converted into the modes of fixing the cylinder barrel and extending the piston rod, and the piston rod moves along with the structural member, so that the overall stability of the supporting leg hydraulic cylinder is improved under the condition that the cylinder diameter and the rod diameter are not increased in the inverted installation mode.
Description
Technical Field
The invention relates to a support leg hydraulic cylinder structure and a fire engine, and belongs to the field of fire engine equipment.
Background
The existing supporting leg hydraulic cylinder compensates for stability loss caused by large stroke of the hydraulic cylinder by increasing the cylinder diameter and the rod diameter, and although the method solves the stroke problem, the stability is ensured by increasing the cylinder diameter and the rod diameter due to compact structure of a chassis of the fire engine, so that raw materials and processing cost are increased, and difficulty is caused to structural design of a main machine.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a support leg hydraulic cylinder structure and a fire engine.
In order to achieve the purpose, the supporting leg hydraulic cylinder structure comprises a cylinder body, a rod body arranged in the cylinder body, a flange arranged on the cylinder body, a pressing block and a nylon block, wherein the pressing block is arranged on the cylinder body;
the flange is welded on the cylinder body, the pressing block is fixedly connected with the flange through a bolt, and the nylon block is fixed on the pressing block through a screw.
As an improvement, a core pipe is arranged in the rod body, and the core pipe penetrates through the rod body along the direction from the rod head to the cylinder bottom.
As an improvement, the center of the flange is provided with a mounting hole, and four corners of the flange are provided with four threaded holes.
As an improvement, the center of the pressing block is provided with a connecting hole, four corners of the pressing block are provided with four through holes, and each side face of the pressing block is provided with two screw holes.
In addition, the invention also provides a fire fighting truck, and the supporting leg hydraulic cylinder structure is arranged on the fire fighting truck.
Compared with the prior art, the landing leg hydraulic cylinder structure has the advantages that the conventional piston rod fixing and cylinder barrel stretching are installed on the main machine, the mode of cylinder barrel fixing and piston rod stretching is converted, the piston rod moves along with the structural member, and the overall stability of the landing leg hydraulic cylinder is improved in the inverted installation mode under the condition that the cylinder diameter and the rod diameter are not increased.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic structural view of a flange according to the present invention;
FIG. 4 is a schematic structural view of a briquette according to the present invention;
FIG. 5 is a side view of a compact of the present invention;
in the figure: 1. the cylinder comprises a cylinder bottom, 2 parts of a cylinder body, 3 parts of a rod body, 4 parts of a core pipe, 5 parts of a flange, 5-1 parts of a threaded hole, 5-2 parts of a mounting hole, 6 parts of a pressing block, 6-1 parts of a through hole, 6-2 parts of a connecting hole, 6-3 parts of a screw hole, 7 parts of a nylon block, 8 parts of a bolt, 9 parts of a rod head, 10 parts of a screw.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention.
As shown in fig. 1 and 2, a hydraulic cylinder structure for supporting legs comprises a cylinder body 2, a rod body 3 arranged in the cylinder body 2, a flange 5 arranged on the cylinder body 2, a pressing block 6 and a nylon block 7;
the flange 5 is welded on the cylinder body 2, the pressing block 6 is fixedly connected with the flange 5 through a bolt 8, and the nylon block 7 is fixed on the pressing block 6 through a screw 10.
As an improvement of the embodiment, a core pipe 4 is arranged in the rod body 3, and the core pipe 4 penetrates through the rod body 3 along the direction from the rod head 9 to the cylinder bottom 1.
As an improvement of the embodiment, as shown in fig. 3, 4 and 5, a mounting hole 5-2 for mounting the cylinder body 2 is formed in the center of the flange 5, and four threaded holes 5-1 are formed in four corners of the flange 5; the center of the pressing block 6 is provided with a connecting hole 6-2 used for being matched with and installing the cylinder body 2, four corners of the pressing block 6 are provided with four through holes 6-1 corresponding to the threaded holes 5-1, and the pressing block 6 is conveniently and firmly connected with the flange 5 through bolts 8 by matching the threaded holes 5-1 and the through holes 6-1, so that the assembly and disassembly are convenient and fast; every side of briquetting 6 is equipped with two screw holes 6-3, installs a nylon piece 7 respectively through screw 10 in every side of briquetting 6, and nylon piece 7 can play the guide effect, plays the guard action simultaneously, prevents that cylinder body 2 from taking place to collide with.
Finally, the invention also provides a fire fighting truck, and the supporting leg hydraulic cylinder structure is arranged on the fire fighting truck. Because the chassis of the fire engine is compact in structure, the cylinder barrel of the hydraulic cylinder slides relative to the square box of the landing leg, the nylon block 7 plays a role in guiding in the square box of the landing leg of the main engine, the hydraulic cylinder is prevented from being in direct contact with the sliding block in the square box of the landing leg, a guiding device is not additionally arranged for the fire engine with the compact chassis structure, and meanwhile, the nylon block 7 can also prevent the hydraulic cylinder from colliding.
According to the supporting leg hydraulic cylinder structure, the conventional modes of fixing the piston rod and extending the cylinder barrel are converted into the modes of fixing the cylinder barrel and extending the piston rod, and the piston rod moves along with the structural member, so that the overall stability of the supporting leg hydraulic cylinder is improved under the condition that the cylinder diameter and the rod diameter are not increased in the inverted installation mode.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. A supporting leg hydraulic cylinder structure comprises a cylinder body (2) and a rod body (3) arranged in the cylinder body (2), and is characterized by further comprising a flange (5), a pressing block (6) and a nylon block (7) which are arranged on the cylinder body (2);
the flange (5) is welded on the cylinder body (2), the pressing block (6) is fixedly connected with the flange (5) through a bolt (8), and the nylon block (7) is fixed on the pressing block (6) through a screw (10).
2. A leg hydraulic cylinder structure according to claim 1, characterized in that a core tube (4) is mounted in the rod body (3), and the core tube (4) penetrates through the rod body (3) in the direction from the rod head (9) to the cylinder bottom (1).
3. The hydraulic cylinder structure for supporting legs according to claim 1, wherein the flange (5) is provided with a mounting hole (5-2) at the center, and four threaded holes (5-1) are formed at four corners of the flange (5).
4. The hydraulic cylinder structure for the support legs according to claim 1, wherein the center of the pressing block (6) is provided with a connecting hole (6-2), four corners of the pressing block (6) are provided with four through holes (6-1), and each side surface of the pressing block (6) is provided with two screw holes (6-3).
5. A fire fighting truck characterized in that the leg cylinder structure of any one of claims 1 to 4 is mounted on the fire fighting truck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111492154.3A CN114151409A (en) | 2021-12-08 | 2021-12-08 | Landing leg hydraulic cylinder structure and fire engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111492154.3A CN114151409A (en) | 2021-12-08 | 2021-12-08 | Landing leg hydraulic cylinder structure and fire engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114151409A true CN114151409A (en) | 2022-03-08 |
Family
ID=80453783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111492154.3A Pending CN114151409A (en) | 2021-12-08 | 2021-12-08 | Landing leg hydraulic cylinder structure and fire engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114151409A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4699281A (en) * | 1984-03-15 | 1987-10-13 | Kabushiki Kaisha Hikoma Seisakusho | Telescopic boom mechanism |
| CN201597654U (en) * | 2010-02-09 | 2010-10-06 | 三一重工股份有限公司 | Crawler type walking machine support oil cylinder and crawler type walking machine |
| CN203374043U (en) * | 2013-07-16 | 2014-01-01 | 太原重工股份有限公司 | Linkage telescopic mast capable of automatically standing up |
| CN104340888A (en) * | 2014-10-28 | 2015-02-11 | 徐州重型机械有限公司 | Supporting leg telescopic oil cylinder guiding device and crane |
| CN207295544U (en) * | 2017-09-26 | 2018-05-01 | 北京卓奥世鹏科技有限公司 | A kind of slide rail type lifting column |
| CN209976961U (en) * | 2019-05-13 | 2020-01-21 | 杭州瑾鸿机电科技有限公司 | Cylinder and pneumatic full-automatic lifting road pile for lifting road pile |
| CN213298437U (en) * | 2020-06-02 | 2021-05-28 | 江苏恒立液压股份有限公司 | Detachable anti-rotation structure of hydraulic cylinder |
-
2021
- 2021-12-08 CN CN202111492154.3A patent/CN114151409A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4699281A (en) * | 1984-03-15 | 1987-10-13 | Kabushiki Kaisha Hikoma Seisakusho | Telescopic boom mechanism |
| CN201597654U (en) * | 2010-02-09 | 2010-10-06 | 三一重工股份有限公司 | Crawler type walking machine support oil cylinder and crawler type walking machine |
| CN203374043U (en) * | 2013-07-16 | 2014-01-01 | 太原重工股份有限公司 | Linkage telescopic mast capable of automatically standing up |
| CN104340888A (en) * | 2014-10-28 | 2015-02-11 | 徐州重型机械有限公司 | Supporting leg telescopic oil cylinder guiding device and crane |
| CN207295544U (en) * | 2017-09-26 | 2018-05-01 | 北京卓奥世鹏科技有限公司 | A kind of slide rail type lifting column |
| CN209976961U (en) * | 2019-05-13 | 2020-01-21 | 杭州瑾鸿机电科技有限公司 | Cylinder and pneumatic full-automatic lifting road pile for lifting road pile |
| CN213298437U (en) * | 2020-06-02 | 2021-05-28 | 江苏恒立液压股份有限公司 | Detachable anti-rotation structure of hydraulic cylinder |
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