CN206886590U - Pile foundation self-balancing approach plunger type jack - Google Patents
Pile foundation self-balancing approach plunger type jack Download PDFInfo
- Publication number
- CN206886590U CN206886590U CN201720629117.5U CN201720629117U CN206886590U CN 206886590 U CN206886590 U CN 206886590U CN 201720629117 U CN201720629117 U CN 201720629117U CN 206886590 U CN206886590 U CN 206886590U
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- cylinder
- sealing ring
- annular groove
- piston
- cylinder barrel
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Abstract
The utility model discloses a kind of pile foundation self-balancing approach plunger type jack, it is characterized in that：Including cylinder body and piston body, it is characterized in that：The cylinder body includes cylinder barrel and bottom plate, and the bottom plate is connected to the lower end of cylinder barrel；The piston body includes piston plate, sealing ring, guide support cylinder and support column, and the piston plate forms annular seal space in cylinder barrel and between cylinder barrel, bottom plate；The guide support cylinder is located at the upper surface of piston plate, the inwall of its lateral wall and cylinder barrel against；The support column is located at the upper surface of piston plate, coaxial with guide support cylinder；There is the annular groove for being coaxial therewith setting, the sealing ring is in annular groove on the piston body；The bottom of the cylinder barrel offers pouring orifice, and the pouring orifice connects with annular seal space；Its technique effect is：Sealing effectiveness is effectively played to annular seal space by sealing ring.
Description
Technical field
It the utility model is related to a kind of pile foundation self-balancing approach plunger type jack.
Background technology
Autobalanced detection is to use counter-force of the pile side resistance as end resistance, so as to the bearing capacity of test pile.Certainly
During balance detection experiment, load box is to test the critical component loaded, the quality of load box service behaviour to stake to be detected
The accuracy of success rate and result of the test to autobalanced detection experiment has important influence.The primary structure bag of load box
Include top panel, lower panel and the jack between upper and lower panel.
Prior art, Publication No. CN201317945 patent document in order to mitigate the weight of jack in load box, its
A kind of dredged foundation bearing capacity autobalanced detection load box is disclosed, technical scheme is：The load box includes at least one
Load cell, each load cell include cylinder body and the piston cylinder along the cylinder body elevating movement, the cylinder base with
Be provided with annular seal space between the piston cylinder root, be provided with through hole at the top of the piston cylinder, oil inlet pipe by the through hole with it is described
Annular seal space connects.The utility model has the advantages that equipment is light and handy, is easily installed, operating pressure is low, easy to assembly, is advantageous to carry
High self-balancing displacement measurement precision, hence it is evident that reduce testing cost.But in the technical scheme, main pressure part is sealing
Capsule, when injecting hydraulic oil to sealing tumour, sealed bladder, which there may be, deforms the uneven risk for causing leakage, so as to have impact on thousand
The normal work on jin top.Additionally, due to the retractility of sealed bladder, when jack stroke is larger, it may reveal, so that also can shadow
Ring the normal work of jack.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of pile foundation self-balancing approach plunger type jack, has
The sealing of the guarantee sealing ring of effect.
To achieve the above object, the utility model provides following technical scheme：
A kind of pile foundation self-balancing approach plunger type jack, including cylinder body and piston body, it is characterized in that：The cylinder body includes
Cylinder barrel and bottom plate, the bottom plate are connected to the lower end of cylinder barrel；The piston body include piston plate, sealing ring, guide support cylinder and
Support column, the piston plate form annular seal space in cylinder barrel and between cylinder barrel, bottom plate；The guide support cylinder is located at piston
The inwall of the upper surface of plate, its lateral wall and cylinder barrel against；The support column is located at the upper surface of piston plate, with guide support cylinder
Coaxially；There is the annular groove for being coaxial therewith setting, the sealing ring is in annular groove on the piston body；Open the bottom of the cylinder barrel
Provided with pouring orifice, the pouring orifice connects with annular seal space.
Preferably, the annular groove includes the upper annular groove being opened on guide support cylinder, and the sealing ring includes upper sealing ring,
The upper sealing ring is in upper annular groove.
Preferably, the annular groove includes the lower annular groove being opened on piston plate, and the sealing ring includes lower seal, described
Lower seal is in lower annular groove.
Preferably, the upper sealing ring and lower seal are to be slidingly sealed.
Pass through above-mentioned technical proposal, upper sealing ring and lower seal can fully ensure the sealing of annular seal space, upper sealing ring
It can prevent cement slurry from entering between support tube and cylinder barrel, cause corrosion, lower seal can prevent the hydraulic oil in annular seal space
It is leaked in environment, causes the pollution of environment；The setting of support column, both cause the center of piston plate or stress branch can be obtained
Support, it is therefore prevented that the situation of upward deformation occurs for piston plate center, has assigned to the bearing capacity of guide support cylinder again, has prevented from being oriented to
Support tube deforms in displacement, destroys the situation of the sealing of annular seal space.
Preferably, the upper surface of the bottom plate is provided with spacing block.
Pass through above-mentioned technical proposal, the spacing block can prevent piston plate from fitting on bottom plate, cause hydraulic oil not to be passed through
The situation of annular seal space.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model pile foundation self-balancing approach plunger type jack.
Embodiment
The utility model pile foundation self-balancing approach is further described with plunger type jack by Fig. 1.
A kind of pile foundation self-balancing approach plunger type jack, including cylinder body 1 and piston body 2, the cylinder body 1 include cylinder barrel 12
With bottom plate 11, the bottom plate 11 is welded in the lower end of cylinder barrel 12；The piston body 2 includes piston plate 23, the and of guide support cylinder 21
Support column 22, the piston plate 23 is horizontal to form annular seal space 7 in cylinder barrel 12 and between cylinder barrel 12, bottom plate 11；It is described to lead
It is located at the upper surface of piston plate 23 to support tube 21, the inwall of its lateral wall and cylinder barrel 12 is against playing guide effect；The branch
Dagger 22 is located at the upper surface of piston plate 23, coaxial with guide support cylinder 21, height and the support column 22 of guide support cylinder 21
It is highly equal；The bottom of the cylinder barrel 12 offers pouring orifice 3, and the pouring orifice 3 connects with annular seal space 7.
Further, lower annular groove is offered in the side wall of the piston plate 23, lower seal 5 is provided with the lower annular groove,
Annular groove is offered in the side wall of the guide support cylinder 21, upper sealing ring 6 is provided with the upper annular groove.
Further, the upper surface of the bottom plate 11 is provided with spacing block 4, isolates fast upper surface and is located at the upside of pouring orifice 3.
Sealing ring is sliding ring.
It should be noted that filler can be also filled between guide support cylinder and piston plate to be supported.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (5)
1. a kind of pile foundation self-balancing approach plunger type jack, including cylinder body and piston body, it is characterized in that：The cylinder body includes cylinder
Cylinder and bottom plate, the bottom plate are connected to the lower end of cylinder barrel；The piston body includes piston plate, sealing ring, guide support cylinder and branch
Dagger, the piston plate form annular seal space in cylinder barrel and between cylinder barrel, bottom plate；The guide support cylinder is located at piston plate
Upper surface, the inwall of its lateral wall and cylinder barrel against；The support column is located at the upper surface of piston plate, same with guide support cylinder
Axle；There is the annular groove for being coaxial therewith setting, the sealing ring is in annular groove on the piston body；The bottom of the cylinder barrel opens up
There is pouring orifice, the pouring orifice connects with annular seal space.
2. pile foundation self-balancing approach plunger type jack according to claim 1, it is characterized in that：The annular groove includes opening up
In the upper annular groove on guide support cylinder, the sealing ring includes upper sealing ring, and the upper sealing ring is in upper annular groove.
3. pile foundation self-balancing approach plunger type jack according to claim 2, it is characterized in that：The annular groove includes opening up
In the lower annular groove on piston plate, the sealing ring includes lower seal, and the lower seal is in lower annular groove.
4. pile foundation self-balancing approach plunger type jack according to claim 3, it is characterized in that：The upper sealing ring is with
Sealing ring is to be slidingly sealed.
5. pile foundation self-balancing approach plunger type jack according to claim 1, it is characterized in that：The upper surface of the bottom plate
Provided with spacing block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720629117.5U CN206886590U (en) | 2017-06-01 | 2017-06-01 | Pile foundation self-balancing approach plunger type jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720629117.5U CN206886590U (en) | 2017-06-01 | 2017-06-01 | Pile foundation self-balancing approach plunger type jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206886590U true CN206886590U (en) | 2018-01-16 |
Family
ID=61321066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720629117.5U Active CN206886590U (en) | 2017-06-01 | 2017-06-01 | Pile foundation self-balancing approach plunger type jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206886590U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113186992A (en) * | 2021-02-19 | 2021-07-30 | 浙江欧感机械制造有限公司 | Self sealss loading unit and based on open type load box structure of this unit |
-
2017
- 2017-06-01 CN CN201720629117.5U patent/CN206886590U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113186992A (en) * | 2021-02-19 | 2021-07-30 | 浙江欧感机械制造有限公司 | Self sealss loading unit and based on open type load box structure of this unit |
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| GR01 | Patent grant |