CN204569284U - A kind of improvement jack - Google Patents
A kind of improvement jack Download PDFInfo
- Publication number
- CN204569284U CN204569284U CN201520146943.5U CN201520146943U CN204569284U CN 204569284 U CN204569284 U CN 204569284U CN 201520146943 U CN201520146943 U CN 201520146943U CN 204569284 U CN204569284 U CN 204569284U
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- CN
- China
- Prior art keywords
- oil pump
- wallboard
- piston rod
- base
- crane arm
- 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.)
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Abstract
The utility model relates to a kind of improvement jack.The jack that object is to provide should have long service life, structure feature simple, easy to use.Technical scheme is: a kind of improvement jack, comprise be made up of pallet, trammel beam, crane arm and wallboard parallel-crank mechanism, to be made up of wallboard and bottom be equipped with wheel base, to be made up of oil cylinder and oil pump and for promote parallel-crank mechanism oil pump assembly, be connected with that handle also can order about that oil pump pump core moves press hand; It is characterized in that: described oil pump assembly is fixed in base, the two ends of a pipe link are hinged on the piston rod of crane arm and oil pump assembly respectively rotationally; Arrange two length directions inside the wallboard of described base symmetrically and piston rod movement direction is positioned at conplane chute, the two ends of the jointed shaft of piston rod and pipe link are positioned in chute slidably.Described oil pump component level is fixed in base.Described hand, trammel beam and the crane arm pressed is hinged on wallboard all rotationally.
Description
Technical field
The utility model relates to a kind of lifting gear, specifically a kind of jack.
Background technology
Jack is a kind of widely used small lifting equipment, has that structure is simple, conveniently moving, single i.e. exercisable advantage.Jack presses the handle of hand to drive oil pump pump core crank motion mainly through constantly shaking connection up and down, and hydraulic oil is pumped in oil cylinder to make the piston rod in oil cylinder move gradually thus pushing tow crane arm, finally by top pallet by height certain for weight jacking forward.
In the working process of existing jack, the piston rod of oil pump assembly can be subject to certain diametral load (diametral load can cause piston rod deformation to bend) when pushing tow crane arm, a period of time gear pump component internal is used easily to occur wearing and tearing, thus affect the work efficiency of oil pump assembly, even cause oil pump component failures.
Utility model content
The purpose of this utility model overcomes the deficiency in above-mentioned background technology, provides a kind of improvement jack, and this jack should have long service life, structure feature simple, easy to use.
The technical solution of the utility model is: a kind of improvement jack, comprise be made up of pallet, trammel beam, crane arm and wallboard parallel-crank mechanism, to be made up of wallboard and bottom be equipped with wheel base, to be made up of oil cylinder and oil pump and for promote parallel-crank mechanism oil pump assembly, be connected with that handle also can order about that oil pump pump core moves press hand; It is characterized in that: described oil pump assembly is fixed in base, the two ends of a pipe link are hinged on the piston rod of crane arm and oil pump assembly respectively rotationally; Arrange two length directions inside the wallboard of described base symmetrically and piston rod movement direction is positioned at conplane chute, the two ends of the jointed shaft of piston rod and pipe link are positioned in chute slidably.
Described oil pump component level is fixed in base.
Described hand, trammel beam and the crane arm pressed is hinged on wallboard all rotationally.
The beneficial effects of the utility model are:
The utility model bears mainly through arranging chute in the base the diametral load that piston rod is subject to, and ensures that the Impact direction of piston rod and moving direction are located along the same line all the time, effectively ensures the safety of oil pump assembly, the service life of prolongation jack; Meanwhile, of the present utility model relatively simple for structure, occupation mode is also identical with existing jack.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of utility model works state.
Fig. 2 is the main TV structure schematic diagram of the utility model collapsed state.
Fig. 3 is the plan structure schematic diagram of Fig. 2.
Detailed description of the invention
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model is not limited to following examples.
As shown in Figure 1, a kind of improvement jack, comprises crane arm 1, pallet 11 (for load-supporting), trammel beam 12, wallboard 2, wheel 21, base, oil pump assembly 3, presses hand 4.
Described base is made up of two blocks of wallboards, and the wheel for jack for moving is arranged on the bottom of base.Described trammel beam and crane arm are hinged on (, as identified shown in 13 in Fig. 1, the jointed shaft of trammel beam and wallboard is as identified in Fig. 1 shown in 14 for the jointed shaft of crane arm and wallboard) on wallboard all rotationally; The left end of trammel beam and crane arm is hinged on pallet rotationally; Pallet, trammel beam, crane arm and wallboard form a parallel-crank mechanism, can guarantee that the end face of pallet remains horizontality in the motion process of parallel-crank mechanism.
For promoting the oil pump assembly installation of parallel-crank mechanism motion, (oil pump assembly comprises oil cylinder and oil pump in the base, oil pump pump core 31 is for oily to oil cylinder pump), press hand be connected to handle (omitting in figure) and the motion of oil pump pump core can be ordered about, press hand and be hinged on rotationally on wallboard.
Above structure is same as the prior art, and improvements of the present utility model are:
Described oil pump component level is fixed in base (piston rod 32 of oil pump assembly moves in horizontal direction), and piston rod promotes crane arm rotation by pipe link 5 simultaneously.
The two ends of pipe link are hinged on the piston rod of crane arm and oil pump assembly respectively rotationally, comprise the left jointed shaft 52 connecting crane arm and pipe link and the right jointed shaft 51 being connected piston rod and pipe link.
Inside two blocks of wallboards of described base, two chutes 6 are set symmetrically, chute extends in the horizontal direction (length bearing of trend and the piston rod movement direction of chute are positioned at same plane), and the two ends of right jointed shaft are positioned in chute slidably simultaneously.In the motion process of piston rod, chute can substitute piston rod and bear diametral load, ensures that piston rod is flexible on fixed-direction all the time, deformation can not occur and bend, thus effectively can ensure the safety of oil pump assembly, extend the service life of jack.
Claims (3)
1. improve a jack, comprise be made up of pallet (11), trammel beam (12), crane arm (1) and wallboard (2) parallel-crank mechanism, to be made up of wallboard and bottom be equipped with wheel (21) base, to be made up of oil cylinder and oil pump and for promote parallel-crank mechanism oil pump assembly (3), be connected with handle and can order about that oil pump pump core (31) moves press hand (4); It is characterized in that: described oil pump assembly is fixed in base, the two ends of a pipe link (5) are hinged on the piston rod (32) of crane arm and oil pump assembly respectively rotationally; Arrange two length directions inside the wallboard of described base symmetrically and piston rod movement direction is positioned at conplane chute (6), the two ends of the jointed shaft of piston rod and pipe link are positioned in chute slidably.
2. one improvement jack according to claim 1, is characterized in that: described oil pump component level is fixed in base.
3. one improvement jack according to claim 2, is characterized in that: described in press hand, trammel beam and crane arm and be hinged on all rotationally on wallboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520146943.5U CN204569284U (en) | 2015-03-16 | 2015-03-16 | A kind of improvement jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520146943.5U CN204569284U (en) | 2015-03-16 | 2015-03-16 | A kind of improvement jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204569284U true CN204569284U (en) | 2015-08-19 |
Family
ID=53861954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520146943.5U Active CN204569284U (en) | 2015-03-16 | 2015-03-16 | A kind of improvement jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204569284U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106672840A (en) * | 2016-12-14 | 2017-05-17 | 国网内蒙古东部电力有限公司检修分公司 | Simple transformer assembling and disassembling rack |
| CN111498727A (en) * | 2020-04-14 | 2020-08-07 | 富阳通力机械制造有限公司 | Jack with pump core protection structure and use method |
-
2015
- 2015-03-16 CN CN201520146943.5U patent/CN204569284U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106672840A (en) * | 2016-12-14 | 2017-05-17 | 国网内蒙古东部电力有限公司检修分公司 | Simple transformer assembling and disassembling rack |
| CN111498727A (en) * | 2020-04-14 | 2020-08-07 | 富阳通力机械制造有限公司 | Jack with pump core protection structure and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |