CN207390900U - A kind of internal thread mechanical caging hydraulic jack - Google Patents
A kind of internal thread mechanical caging hydraulic jack Download PDFInfo
- Publication number
- CN207390900U CN207390900U CN201721462699.9U CN201721462699U CN207390900U CN 207390900 U CN207390900 U CN 207390900U CN 201721462699 U CN201721462699 U CN 201721462699U CN 207390900 U CN207390900 U CN 207390900U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- internal thread
- wall
- bottom cover
- oil storage
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of internal thread mechanical caging hydraulic jacks, including bottom cover, support column, piston rod, cylinder body, mounting base, bottom cover is connected with cylinder body one end and forms sealing, direction is arranged in cylinder body support column along the axial cylinder, and support column one end is fixed with bottom cover and column outer wall is supported to be less than inboard wall of cylinder block；Piston rod is arranged on the support columns and can be moved along support column central axis direction；Piston rod inner wall section has internal thread and is equipped with the inner nut being adapted to therewith, and inner nut is arranged on the one end of support column away from bottom cover simultaneously can be by rotating the relative position adjusted in piston rod, and piston rod upper end is mounting base.
Description
Technical field
The utility model is related to a kind of internal thread mechanical caging hydraulic jacks.
Background technology
Support using the jack pair weight of hydraulic oil liquid driving is a kind of unstable flexible support, and there is height for it
The problem of reflux of pressure oil liquid and seal failure, fluid reflux will seriously and when sealing unreliable cause the branch of jack pair weight
Support failure, seriously affects the safe handling of jack, and the mechanical self-latching top of traditional structure is designed for single-acting, spring reset, long
Phase uses rear spring fatigue, and reset speed is slack-off, and work efficiency is low.
Utility model content
In order to solve the problems in the existing technology the utility model, and provides a kind of internal thread mechanical caging hydraulic pressure thousand
Jin top, the locking of piston internal thread reduce sealing ring and are pressurized for a long time, increase the service life of jack, make load safer.Double cropping
It is designed with oil circuit, reset speed is faster, hence it is evident that improve work efficiency.
To achieve the above object, the technical solution adopted in the utility model is：
A kind of internal thread mechanical caging hydraulic jack, including bottom cover, support column, piston rod, cylinder body, mounting base, bottom cover
It is connected with cylinder body one end and forms sealing, direction is arranged in cylinder body support column along the axial cylinder, and support column one end is consolidated with bottom cover
Fixed and support column outer wall is less than inboard wall of cylinder block；Piston rod is arranged on the support columns and can be moved along support column central axis direction；It is living
Stopper rod inner wall section has internal thread and is equipped with the inner nut being adapted to therewith, and inner nut is arranged on one of support column away from bottom cover
It holds and the relative position in piston rod can be adjusted by rotation, piston rod upper end is mounting base, when the jack is in initial
During state, inner nut contacts or is spaced smaller distance with support column, and when jack is in running order, piston rod is in oil pressure
It is moved up under effect along support column central axis direction, inner nut rises under piston rod drive with piston rod, when arrival is set
When using height surely, it is made to offset with support column upper surface inner nut rotation, the load of jack is by nut and support at this time
Bar undertakes, and solves the problems, such as high-voltage oil liquid reflux and seal failure of the prior art.
As a kind of preferred embodiment of internal thread mechanical caging hydraulic jack described in the utility model, the piston
The space of cylinder body and support intercolumniation is separated into two closed spaces by bar, and a space is that one space of rising oil storage cylinder is multiple
Position oil storage cylinder；The volume for rising oil storage cylinder when piston rises becomes larger and resets the volume of oil storage cylinder and become smaller, when piston reset on
Rise oil storage cylinder volume become smaller reset oil storage cylinder volume become larger, rise oil storage cylinder with rise oil circuit be connected, reset oil storage cylinder and
Oil circuit connection is resetted, the design of double acting oil circuit resets reliable and stable.
As a kind of preferred embodiment of internal thread mechanical caging hydraulic jack described in the utility model, the rising
Oil circuit and reset oil circuit are arranged in piston rod.
As a kind of preferred embodiment of internal thread mechanical caging hydraulic jack described in the utility model, the piston
Bar outer wall one end is thicker, and one end is thinner, and the thicker one end of outer wall forms shoulder, is formed between shoulder bottom surface and bottom cover and rises oil storage cylinder,
Shoulder upper surface is formed with cylinder body upper port resets oil storage cylinder.
As a kind of preferred embodiment of internal thread mechanical caging hydraulic jack described in the utility model, the shoulder
Outer wall contacted with inboard wall of cylinder block and form sealing, shoulder inner wall contacts with support column outer wall and forms sealing；Thinner one end
Piston rod outer wall contacts with upper port inner wall and forms sealing.
As a kind of preferred embodiment of internal thread mechanical caging hydraulic jack described in the utility model, the rising
Oil circuit extends downwardly along piston rod and penetrates through piston rod bottom and connected with rising oil storage cylinder, rises oil circuit upper end and connects with rising oilhole
It is logical；The reset oil circuit is extended downwardly along piston rod and connected with the reset oil storage cylinder on shoulder top, reset oil circuit upper end with
Reset oilhole connection.
As a kind of preferred embodiment of internal thread mechanical caging hydraulic jack described in the utility model, unbalance loading is further included
Saddle, bottom cover lower part are connected with unbalance loading saddle, and further, the bottom cover bottom surface has arc-shaped concave, in arc-shaped concave
Heart position has mounting groove, and unbalance loading saddle upper surface has the arc convex being adapted to bottom cover bottom surface, arc convex center
Unbalance loading fixed link is fixed with, the mounting groove of bottom cover is inserted into unbalance loading fixed link upper end, and the unbalance loading that can be born reaches the specified carrying of hydraulic cylinder
The 5% of ability.
As a kind of preferred embodiment of internal thread mechanical caging hydraulic jack described in the utility model, the cylinder body
Outer wall is symmetrical arranged there are two hanging ring, is convenient for carrying use.
Advantageous effect：
It, can long term support load after nut check 1. piston internal thread locks；
2. the unbalance loading that can be born reaches the 5% of hydraulic cylinder rated capacity；
It is small, light-weight, easy movement, easy to operate in small space 3. strong design；
4. double acting oil circuit designs, reset reliable and stable.
Description of the drawings
Fig. 1 is hydraulic jack (reset state) schematic cross-section of preferable case in embodiment 1.
Fig. 2 is hydraulic jack (rising one end distance) schematic cross-section of preferable case in embodiment 1
Wherein：
1st, cylinder body 2, support column 3, bottom cover 4, piston rod 4.1, shoulder 4.2, rise oil storage cylinder 4.3, be multiple
Position oil storage cylinder 4.4 rises oil circuit 4.5, resets oil circuit 4.6, rise oilhole 4.7, reset oilhole 5, inner nut
6th, mounting base 7, unbalance loading saddle 7.1, unbalance loading fixed link
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Embodiment 1
As shown in Figure 1, a kind of preferable internal thread mechanical caging hydraulic jack roof construction, including cylinder body 1, cylinder body 1 is in two
The hollow barrel-type structure of end opening, support column 2 are fixed on 3 center of bottom cover, lower port fixation and shape of the bottom cover 3 with cylinder body 1
Into sealing structure, such support column is contained in the inside of cylinder body, and piston rod 4,4 outer wall one end of piston rod are arranged with outside support column
Thicker one end is thinner, and the thicker one end of outer wall forms shoulder 4.1, is formed between 4.1 bottom surface of shoulder and bottom cover and rises oil storage cylinder 4.2,
Shoulder upper surface and cylinder body upper port, which are formed, resets oil storage cylinder 4.3,4.1 inner wall of shoulder be in close contact with piston rod outer wall to be formed it is close
Envelope in order to improve sealing effect, is provided with sealing element at shoulder inner wall and shoulder outer wall, and sealing element can be sealing ring, close
The structures such as strip of paper used for sealing.
Internal thread is distributed in a part for piston rod inner wall, and the internal diameter with female thread portion is outer slightly larger than support column
Wall, so internal thread will not rub with support column during piston rod 4 moves up and down.Inner nut is equipped in piston rod
5, inner nut 5 has the external screw thread being adapted to the internal thread of piston rod, and inner nut 5 can be adjusted in piston rod 4 by rotation
Position.
The piston rod of thinner one end is pierced by cylinder body upper port and is in close contact to form sealing with cylinder body upper port inner wall.Piston
Bar upper end sets mounting base 6, hollow out and its internal diameter is more than piston rod internal diameter in the middle part of mounting base.
Due to the inner wall of the shoulder of underpart of the piston rod and support column sealing, outer wall and the cylinder body of shoulder seal, and work as piston rod
After moving upwards, between piston rod bottom and low bar top formed rise oil storage cylinder 4.2, and shoulder top with on cylinder body
It is formed between port and resets oil storage cylinder 4.3, be distributed in the body of rod of piston rod and rise oil circuit 4.4 and reset oil circuit 4.5, rise oil
Road 4.4 extends downwardly along piston rod and penetrates through piston rod bottom and connected with rising oil storage cylinder, rises 4.4 upper end of oil circuit with rising oil
Hole 4.6 connects；The reset oil circuit 4.5 is extended downwardly along piston rod and connected with the reset oil storage cylinder on shoulder top, is resetted
Oil circuit upper end is connected with resetting oilhole 4.7.
When needing using jack, press-in liquid-working-medium in oil storage cylinder 4.2 is ramped up by rising oilhole 4.6,
Liquid-working-medium jacks up piston rod 4 upwards, and resets oilhole 4.7 at this time and also open, and resets the liquid work in oil storage cylinder 4.3
Make medium through reset oilhole 4.7 discharge, when rise to need position when, close rise oilhole 4.6 and reset oilhole 4.7.Upper
During rising, inner nut 5 rises a distance with piston rod 4, and rotating inner nut 5 at this time makes itself and support column upper surface phase
It supports, at this time only 2 stress of inner nut 5 and support column, can shift and rise oil storage cylinder with resetting oil storage cylinder and rising oilhole, reset
The pressure of oilhole can support load for a long time after inner nut locking, reduce sealing ring and be pressurized for a long time, extend jack use
Service life changes the drawbacks of existing jack is unable to long term support.And when jack need not be used, it is only necessary to by inner nut 5
Home is rotated to, then opens and rises oilhole 4.6 and reset oilhole 4.7, by resetting oilhole 4.7 to reset oil storage cylinder
4.3 pressurizations, and rise oil storage cylinder 4.2 and take out from inside to outside, so double oil circuit designs, reset speed is faster, hence it is evident that improves work efficiency.
It is unfinished easy to operation, rise oilhole 4.6 and reset oilhole 4.7 and design the position being pierced by piston rod outside cylinder body.Outside cylinder body
Wall is also arranged symmetrically, and there are two hanging ring, easy to use and carryings.
3 bottom surface of bottom cover has arc-shaped concave, has mounting groove, 7 upper table mask of unbalance loading saddle in arc-shaped concave center
There is the arc convex being adapted to bottom cover bottom surface, arc convex center is fixed with unbalance loading fixed link 7.1, unbalance loading fixed link upper end
The mounting groove of bottom cover is inserted into, the unbalance loading that can be born reaches the 5% of hydraulic cylinder rated capacity.
Although the embodiment of the utility model is illustrated in specification, these embodiments are intended only as carrying
Show, should not limit the scope of protection of the utility model.Various omissions are carried out in the range of the utility model aims are not departed from, are put
It changes and change should be included in the scope of protection of the utility model.
Claims (10)
1. a kind of internal thread mechanical caging hydraulic jack, including bottom cover, support column, piston rod, cylinder body, mounting base, bottom cover with
Cylinder body one end connects and forms sealing, and direction is arranged in cylinder body support column along the axial cylinder, and support column one end is fixed with bottom cover
And support column outer wall is less than inboard wall of cylinder block；Piston rod is arranged on the support columns and can be moved along support column central axis direction；Piston
Bar inner wall section has internal thread and is equipped with the inner nut being adapted to therewith, and inner nut is arranged on the one end of support column away from bottom cover
And can be by rotating the relative position adjusted in piston rod, piston rod upper end is mounting base.
2. internal thread mechanical caging hydraulic jack according to claim 1, it is characterised in that：The piston rod is by cylinder
The space of body and support intercolumniation is separated into two closed spaces, and a space is that one space of rising oil storage cylinder is to reset oil storage
Cylinder；The volume for rising oil storage cylinder when piston rises becomes larger and resets the volume of oil storage cylinder and become smaller, and rises oil storage when piston reset
The volume of cylinder, which becomes smaller, to be resetted the volume of oil storage cylinder and becomes larger, and is risen oil storage cylinder and be connected with rising oil circuit, resets oil storage cylinder and reset is oily
Road connects.
3. internal thread mechanical caging hydraulic jack according to claim 2, it is characterised in that：The rising oil circuit and
Oil circuit is resetted to be arranged in piston rod.
4. internal thread mechanical caging hydraulic jack according to claim 2, it is characterised in that：The piston rod outer wall
One end is thicker, and one end is thinner, and the thicker one end of outer wall forms shoulder, is formed between shoulder bottom surface and bottom cover and rises oil storage cylinder, on shoulder
Surface is formed with cylinder body upper port resets oil storage cylinder.
5. internal thread mechanical caging hydraulic jack according to claim 4, it is characterised in that：The outer wall of the shoulder
It is contacted with inboard wall of cylinder block and forms sealing, shoulder inner wall contacts with support column outer wall and forms sealing；The piston rod of thinner one end
Outer wall contacts with upper port inner wall and forms sealing.
6. internal thread mechanical caging hydraulic jack according to claim 4, it is characterised in that：The rising oil circuit edge
Piston rod extends downwardly and penetrates through piston rod bottom and connected with rising oil storage cylinder, rises oil circuit upper end and is connected with rising oilhole；Institute
The reset oil circuit stated is extended downwardly along piston rod and connected with the reset oil storage cylinder on shoulder top, resets oil circuit upper end with resetting oil
Hole connects.
7. internal thread mechanical caging hydraulic jack according to claim 4, it is characterised in that：Unbalance loading saddle is further included,
Bottom cover lower part is connected with unbalance loading saddle.
8. internal thread mechanical caging hydraulic jack according to claim 7, it is characterised in that：The bottom cover bottom surface tool
There is arc-shaped concave, there is mounting groove in arc-shaped concave center, unbalance loading saddle upper surface has the arc being adapted to bottom cover bottom surface
Shape convex surface, arc convex center are fixed with unbalance loading fixed link, and the mounting groove of bottom cover is inserted into unbalance loading fixed link upper end.
9. internal thread mechanical caging hydraulic jack according to claim 4, it is characterised in that：The outer wall of cylinder block pair
Claiming setting, there are two hanging rings.
10. internal thread mechanical caging hydraulic jack according to claim 4, it is characterised in that：The bottom cover and branch
Dagger is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721462699.9U CN207390900U (en) | 2017-11-06 | 2017-11-06 | A kind of internal thread mechanical caging hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721462699.9U CN207390900U (en) | 2017-11-06 | 2017-11-06 | A kind of internal thread mechanical caging hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207390900U true CN207390900U (en) | 2018-05-22 |
Family
ID=62324843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721462699.9U Active CN207390900U (en) | 2017-11-06 | 2017-11-06 | A kind of internal thread mechanical caging hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207390900U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853239A (en) * | 2020-07-13 | 2020-10-30 | 大连理工大学 | Sealer device for floating transportation of pipe piles on sea |
-
2017
- 2017-11-06 CN CN201721462699.9U patent/CN207390900U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853239A (en) * | 2020-07-13 | 2020-10-30 | 大连理工大学 | Sealer device for floating transportation of pipe piles on sea |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107720598A (en) | A kind of internal thread mechanical caging hydraulic jack | |
| CN202201677U (en) | Difunctional mechanically self-locking jack | |
| CN207418181U (en) | A kind of external screw thread mechanical caging double-action hydraulic jack | |
| CN207390900U (en) | A kind of internal thread mechanical caging hydraulic jack | |
| CN204664046U (en) | A kind of compression type environmental sanitation boats and ships Double Acting Telescopic Hydraulic Cylinder | |
| CN205740043U (en) | A kind of high voltage adjusting valve base lifting installation tool | |
| CN202704930U (en) | High-thrust jack | |
| CN205638502U (en) | Floated hydraulic column | |
| CN201144707Y (en) | Double telescopic suspension type hydraulic prop | |
| CN107521472A (en) | Residential quarters are emergent to move car device | |
| CN201666237U (en) | Treadle type hydraulic pump | |
| CN109306975A (en) | A kind of Novel winding-type accumulator | |
| CN203809412U (en) | Special multilevel hydraulic cylinder for elevator | |
| CN220319989U (en) | Double-acting thread self-locking hydraulic cylinder | |
| CN204492743U (en) | Withstand voltage high temperature resistant pair of packing-element releasing packer | |
| CN209539678U (en) | A kind of tower crane jacking cylinder combination valve | |
| CN108223485A (en) | A kind of lathe hydraulic cylinder that automatically resets | |
| CN207294032U (en) | A kind of hydraulic jack | |
| CN206309569U (en) | A kind of double travelling valve plunger gap bridge oil well pumps | |
| CN205918694U (en) | Multistage hydraulic cylinder for lift platform | |
| CN218644571U (en) | Jacking oil cylinder for rerailer | |
| CN209370542U (en) | A kind of outer circulation condensed device safe pressure relief device | |
| CN214661211U (en) | Hydraulic cylinder structure with radial spherical plain bearing inside | |
| CN204458285U (en) | A kind of plunger oil-well pump | |
| CN207061771U (en) | A kind of Hydraulic Double telescope support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |