CN206417811U - Hydraulic jack - Google Patents
Hydraulic jack Download PDFInfo
- Publication number
- CN206417811U CN206417811U CN201720053636.1U CN201720053636U CN206417811U CN 206417811 U CN206417811 U CN 206417811U CN 201720053636 U CN201720053636 U CN 201720053636U CN 206417811 U CN206417811 U CN 206417811U
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- Prior art keywords
- piston bar
- oil
- cylinder body
- hydraulic jack
- piston
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Abstract
The utility model discloses a kind of lower hydraulic jack of whole height.A kind of hydraulic jack, including fuel reserve tank, oil cylinder, fuel delivery device and oil return apparatus, the oil cylinder includes cylinder body, hollow First piston bar is provided with the cylinder body, second piston bar is equipped with the First piston bar, the lower end of the First piston bar is provided with the first sealing block fitted with inboard wall of cylinder block, the cylinder body upper end is provided with the first catch for being abutted with the first sealing block and making First piston bar can not deviate from from cylinder body, the lower end of the second piston bar is provided with the second sealing block with First piston bar inwall gluing, sealing, the First piston bar upper end is provided with the second catch for being abutted with the second sealing block and making second piston bar can not deviate from from First piston bar.Due to being divided into First piston bar and the segmentation lifting of second piston bar two ends, whole height will can be used for the lower car in chassis than relatively low when First piston bar and second piston bar are all taken in cylinder body.
Description
Technical field
The utility model is related to a kind of jack, more particularly to a kind of hydraulic jack.
Background technology
Hydraulic jack is a kind of maintenance tool essential with car, for car jack-up conveniently to be repaired.
Authorization Notice No. discloses a kind of hydraulic jack for CN205653111U utility model patent.But the practicality
It is new to there is problems with：Due to the chassis when car than it is relatively low when the hydraulic jack can not be placed on below chassis.
Utility model content
The purpose of this utility model is to provide a kind of lower hydraulic jack of whole height.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of hydraulic jack,
Including fuel reserve tank, oil cylinder, fuel delivery device and oil return apparatus, the oil cylinder includes being provided with hollow first in cylinder body, the cylinder body
Second piston bar is equipped with piston rod, the First piston bar, the lower end of the First piston bar is provided with pastes with inboard wall of cylinder block
The first sealing block closed, the cylinder body upper end, which is provided with to abut with the first sealing block, makes what First piston bar can not deviate from from cylinder body
First catch, the lower end of the second piston bar is provided with the second sealing block with First piston bar inwall gluing, sealing, and described the
One piston rod upper end is provided with the second catch for being abutted with the second sealing block and making second piston bar can not deviate from from First piston bar.
By above-mentioned technical proposal, when the hydraulic oil in fuel reserve tank is transported in cylinder body, First piston bar is pushed up upwards straight
When first catch of the first sealing block and cylinder body upper end to First piston bar lower end is abutted, First piston bar stop motion.The
Two piston rods start to be moved upwardly until that the second sealing block and the second catch are abutted, second piston bar stop motion, due to being divided into
First piston bar and the segmentation lifting of second piston bar two ends, therefore all taken in First piston bar and second piston bar in cylinder body
When hydraulic jack whole height will can be used for the lower car in chassis than relatively low.
It is further arranged to：The fuel delivery device includes being hinged with lever on oil transportation frame, the oil transportation frame, and the lever is set
There is the connecting rod that one end is hinged with its intermediate part, the other end of the connecting rod is provided with the oil transportation piston with rod hinge connection, the oil transportation
Frame is provided with the input oil groove that is abutted with oil transportation piston side wall, the bottom of the input oil groove provided with the fuel sucking pipe connected with fuel reserve tank with
And the petroleum pipeline being connected with cylinder body lower end, the fuel sucking pipe, which is provided with, makes hydraulic oil be merely able to flow from fuel reserve tank to input oil groove direction
Dynamic oil sucting one-way valve, it is unidirectional that the petroleum pipeline is provided with the oil transportation for making hydraulic oil to be flowed from input oil groove to cylinder body direction
Valve.
By above-mentioned technical proposal, lever is swung up and down so that connecting rod drives oil transportation piston to be moved up and down in input oil groove.
It is merely able to due to being provided with oil transportation check valve on petroleum pipeline, therefore when oil transportation piston upwards oil suction by fuel sucking pipe
The hydraulic oil attracted deposit in fuel tank.When oil transportation piston is moved downward, due to being provided with oil sucting one-way valve on fuel sucking pipe, therefore
Hydraulic oil is merely able to convey into cylinder body by petroleum pipeline.
It is further arranged to：The extension bar being detachably connected is arranged with the lever.
By above-mentioned technical proposal, extension bar can increase the arm of force after connecting lever so that can be defeated with same power
Go out bigger torque, it is more laborsaving when rocking lever.Without when can also remove saving operating space.
It is further arranged to：The oil return apparatus includes the oil return pipe that two ends are respectively communicated with cylinder body and fuel reserve tank, described time
Oil pipe is provided with control valve.
By above-mentioned technical proposal, First piston bar and second piston bar need to decline when putting down automobile, beat
The hydraulic oil opened in control valve, cylinder body is come back in fuel reserve tank by oil return pipe, and First piston bar and second piston bar are also
It has dropped.
It is further arranged to：The lower end of the second piston bar is provided with the back-moving spring that is connected with cylinder body bottom surface, and described the
The upper end of two piston rods is more than the force-application block of First piston bar internal diameter provided with diameter.
By above-mentioned technical proposal, second piston bar is driven to move downward by back-moving spring, until force-application block and
Continue to drive First piston bar to move reset downwardly together when one piston rod is abutted.So First piston bar and second piston
The recovery speed of bar is faster.
It is further arranged to：Fixed mount is provided between the fuel reserve tank and oil cylinder, the oil transportation frame is fixed with fuel reserve tank to be connected
Connect.
By above-mentioned technical proposal, set fixed mount that fuel reserve tank and oil cylinder are connected, and oil transportation frame also with storage
Fuel tank is fixedly connected, and is more facilitated when hydraulic jack is installed.Simultaneously can also play protection petroleum pipeline, fuel sucking pipe and
The effect that oil return pipe is not torn.
It is further arranged to：The lower end outer wall of the second piston bar is provided with spacing mark.
By above-mentioned technical proposal, the spacing mark on second piston bar lower end outer wall means when exposing
Through reaching maximum height, it is impossible to be further continued for oil transportation, it is to avoid the oil pressure in cylinder body is too high.
In summary, the beneficial effects of the utility model are：
1st, the whole height of hydraulic jack is allowd to shrink lower by First piston bar and second piston bar；
2nd, caused by the extension bar being detachably connected more laborsaving when rocking lever.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment；
Fig. 2 is the schematic cross-sectional view of embodiment；
Fig. 3 is the enlarged drawing at A in Fig. 1.
Reference：1st, fuel reserve tank；2nd, oil cylinder；3rd, fuel delivery device；4th, oil return apparatus；5th, First piston bar；6th, second live
Stopper rod；7th, the first sealing block；8th, the first catch；9th, the second sealing block；10th, the second catch；11st, back-moving spring；12nd, force-application block；
13rd, oil transportation frame；14th, input oil groove；15th, lever；16th, extension bar；17th, oil transportation piston；18th, fuel sucking pipe；19th, petroleum pipeline；20th, oil suction
Check valve；21st, oil transportation check valve；22nd, oil return pipe；23rd, control valve；24th, spacing mark；25th, fixed mount；26th, cylinder body；27th, even
Bar.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only to explain of the present utility model, and it is not to limitation of the present utility model, ability
Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but
As long as all being protected in right of the present utility model by Patent Law.
As depicted in figs. 1 and 2, a kind of hydraulic jack, including fuel reserve tank 1, oil cylinder 2, fuel delivery device 3 and oil return apparatus 4,
It is provided with the cylinder body 26 of oil cylinder 2 in hollow First piston bar 5, First piston bar 5 and is installed with solid second piston bar 6, this
Sample allow for oil cylinder 2 can in the case of same rising height whole height do it is smaller.
As described in Figure 2, the lower end side of First piston bar 5 is stained with the first close of the ring-type being brought into close contact with the inwall of cylinder body 26
Seal to be welded with block 7, the upper end inwall of cylinder body 26 and block the first sealing block 7 so that First piston bar 5 can not deviate from from cylinder body 26
The first catch 8.Cylindrical with the inwall close body sum of First piston bar 5 is stained with the lower surface of second piston bar 6
Two sealing blocks 9, the upper end of second piston bar 6, which is welded with, blocks the second sealing block 9 so that second piston bar 6 can not be from First piston bar
The second catch 10 deviate from 5.There are back-moving spring 11, back-moving spring between the lower end and the bottom surface of cylinder body 26 of second piston bar 6
11 upper end is penetrated in the second sealing block 9, the bottom surface welding of lower end and cylinder body 26.It is big that the upper end of second piston bar 6 is welded with diameter
In the force-application block 12 of the internal diameter of First piston bar 5, the lower end side of second piston bar 6 is stained with spacing mark 24.
As shown in figures 1 and 3, the device of fuel delivery device 3 includes being provided with input oil groove 14 on oil transportation frame 13, oil transportation frame 13.Oil transportation
Position and one end of lever 15 on frame 13 positioned at the side of input oil groove 14 are hinged, and the other end of lever 15 is cased with what is be detachably connected
Extension bar 16.The middle part of lever 15 is hinged close to the position and one end of connecting rod 27 with the hinged place of oil transportation frame 13, connecting rod 27 it is another
One end is hinged with the oil transportation piston 17 in input oil groove 14.The side of the lower end of input oil groove 14 is installed with the suction connected with fuel reserve tank 1
Being provided with oil pipe 18 and the petroleum pipeline 19 connected with the lower end side of cylinder body 26, fuel sucking pipe 18 makes hydraulic oil be merely able to from oil storage
Be provided with the oil sucting one-way valve 20 that case 1 flows to the direction of input oil groove 14, petroleum pipeline 19 make hydraulic oil can only from input oil groove 14 to
The oil transportation check valve 21 of the direction of cylinder body 26 flowing.The oil return pipe 22 of the connection lower end side of oil cylinder 2, oil return are also installed with fuel reserve tank 1
Control valve 23 is installed on pipe 22.The fixed mount 25 of both connections is welded between fuel reserve tank 1 and oil cylinder 2.
Oil transportation piston 17 is driven to push when lever 15 is pushed so that the hydraulic oil in input oil groove 14 passes through petroleum pipeline 19
Conveyed to oil cylinder 2, drive oil transportation piston 17 to rise when lever 15 rises and cause the hydraulic oil in fuel reserve tank 1 to pass through fuel sucking pipe
18 are drawn onto in fuel reserve tank 1.The hydraulic oil in fuel reserve tank 1 is transported in oil cylinder 2 by the reciprocating motion of lever 15 so that oil cylinder
2 First piston bar 5 and second piston bar 6 rises successively.When needing to make First piston bar 5 and the decline of second piston bar 6
Control valve 23 is opened, the hydraulic oil in cylinder body 26 is under lifting thing by returning in the presence of the restoring force of pressure and back-moving spring 11
Oil pipe 22 is returned in fuel reserve tank 1.
Claims (7)
1. a kind of hydraulic jack, including fuel reserve tank (1), oil cylinder (2), fuel delivery device (3) and oil return apparatus (4), it is characterized in that：
The oil cylinder (2) includes being provided with hollow First piston bar (5), the First piston bar in cylinder body (26), the cylinder body (26)
(5) second piston bar (6) is equipped with, the lower end of the First piston bar (5) is provided with fitted with cylinder body (26) inwall first
Sealing block (7), cylinder body (26) upper end, which is provided with to abut with the first sealing block (7), makes First piston bar (5) can not be from cylinder body
(26) the first catch (8) of abjection in, the lower end of the second piston bar (6) is close provided with being fitted with First piston bar (5) inwall
The second sealing block (9) of envelope, First piston bar (5) upper end, which is provided with to abut with the second sealing block (9), makes second piston bar (6)
The second catch (10) that can not deviate from from First piston bar (5).
2. hydraulic jack according to claim 1, it is characterized in that：The fuel delivery device (3) includes oil transportation frame (13), institute
State and lever (15) is hinged with oil transportation frame (13), the connecting rod that the lever (15) is hinged provided with one end with lever (15) middle part
(27), the other end of the connecting rod (27) is provided with the oil transportation piston (17) being hinged with connecting rod (27), the oil transportation frame (13) and set
There is the input oil groove (14) abutted with oil transportation piston (17) side wall, the bottom of the input oil groove (14) is provided with to be connected with fuel reserve tank (1)
Fuel sucking pipe (18) and the petroleum pipeline (19) that is connected with cylinder body (26) lower end, the fuel sucking pipe (18) is provided with making hydraulic oil only
The oil sucting one-way valve (20) that can be flowed from fuel reserve tank (1) to input oil groove (14) direction, the petroleum pipeline (19), which is provided with, makes liquid
Press oil the oil transportation check valve (21) that can only be flowed from input oil groove (14) to cylinder body (26) direction.
3. hydraulic jack according to claim 2, it is characterized in that：It is arranged with what is be detachably connected on the lever (15)
Extension bar (16).
4. hydraulic jack according to claim 2, it is characterized in that：The oil return apparatus (4) is respectively communicated with including two ends
The oil return pipe (22) of cylinder body (26) and fuel reserve tank (1), the oil return pipe (22) is provided with control valve (23).
5. hydraulic jack according to claim 4, it is characterized in that：The lower end of the second piston bar (6) is provided with and cylinder
The back-moving spring (11) of body (26) bottom surface connection, the upper end of the second piston bar (6) is more than First piston bar (5) provided with diameter
The force-application block (12) of internal diameter.
6. hydraulic jack according to claim 4, it is characterized in that：Provided with solid between the fuel reserve tank (1) and oil cylinder (2)
Determine frame (25), the oil transportation frame (13) is fixedly connected with fuel reserve tank (1).
7. hydraulic jack according to claim 1, it is characterized in that：Set on the lower end outer wall of the second piston bar (6)
Limited bit flag (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720053636.1U CN206417811U (en) | 2017-01-17 | 2017-01-17 | Hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720053636.1U CN206417811U (en) | 2017-01-17 | 2017-01-17 | Hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206417811U true CN206417811U (en) | 2017-08-18 |
Family
ID=59573051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720053636.1U Expired - Fee Related CN206417811U (en) | 2017-01-17 | 2017-01-17 | Hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206417811U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108217536A (en) * | 2018-03-12 | 2018-06-29 | 湖北乾奥建设工程有限公司 | Architectural engineering hand operated transport and operating method |
| CN108561484A (en) * | 2018-03-14 | 2018-09-21 | 浙江耀欧汽车零部件有限公司 | One kind having the dust-proof motor-driven jack holder of buffer structure both legs support type |
| CN109019396A (en) * | 2018-09-13 | 2018-12-18 | 徐州卓控科技有限公司 | One kind being automatically prevented from hydraulic jack oil return apparatus |
| CN111591917A (en) * | 2020-06-01 | 2020-08-28 | 嘉兴金鹏工具有限公司 | Multifunctional combined shifting jack |
-
2017
- 2017-01-17 CN CN201720053636.1U patent/CN206417811U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108217536A (en) * | 2018-03-12 | 2018-06-29 | 湖北乾奥建设工程有限公司 | Architectural engineering hand operated transport and operating method |
| CN108561484A (en) * | 2018-03-14 | 2018-09-21 | 浙江耀欧汽车零部件有限公司 | One kind having the dust-proof motor-driven jack holder of buffer structure both legs support type |
| CN109019396A (en) * | 2018-09-13 | 2018-12-18 | 徐州卓控科技有限公司 | One kind being automatically prevented from hydraulic jack oil return apparatus |
| CN111591917A (en) * | 2020-06-01 | 2020-08-28 | 嘉兴金鹏工具有限公司 | Multifunctional combined shifting jack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170818 Termination date: 20180117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |