CN2760112Y - Gradient extrusion-expansion device - Google Patents
Gradient extrusion-expansion device Download PDFInfo
- Publication number
- CN2760112Y CN2760112Y CN 200420121950 CN200420121950U CN2760112Y CN 2760112 Y CN2760112 Y CN 2760112Y CN 200420121950 CN200420121950 CN 200420121950 CN 200420121950 U CN200420121950 U CN 200420121950U CN 2760112 Y CN2760112 Y CN 2760112Y
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- CN
- China
- Prior art keywords
- oil cylinder
- extrusion
- expansion
- piston rod
- squeezed
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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.)
- Expired - Lifetime
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Abstract
The utility model relates to a gradient extrusion-expansion device which is composed of an extrusion-expansion arm, an oil cylinder, a piston rod, shaft pins, an inlet and an outlet oil pipes, an upper and a lower connecting discs, and a connecting rod, wherein the oil cylinder is a gradient hydraulic oil cylinder and is composed of a big oil cylinder, a middle oil cylinder and the piston rod, and the connecting rod is connected with the gradient hydraulic oil cylinder; the big oil cylinder is connected with the middle oil cylinder, and the middle oil cylinder is connected with the piston rod; the piston rod is connected with a middle extrusion-expansion arm, and the middle extrusion-expansion arm is connected with an upper and a lower extrusion-expansion arms through the shaft pins; the upper and the lower extrusion-expansion arms are respectively connected with the upper and the lower connecting discs through the shaft pins, and the upper and the lower connecting discs are sheathed with the connecting rod. The device has the advantages of direct horizontal extrusion and expansion, large extrusion and expansion force, high speed, small disturbance for the soil body, tranquilization for a completed extrusion-expansion chamber, strong cutting resistance and difficult collapse. Compared with the traditional device, the utility model has the advantages of high work efficiency, small size and light weight. The utility model increases bearing capacity of piles, solves the problem of hole expansion of a large-caliber multiple-section extrusion-expansion pile, can cause the construction cost to be widely reduced.
Description
Technical field:
The utility model relates to a kind of extruding-spreading device in building engineering field, relates in particular to a kind of gradient pushing and enlarging device of the bored pile in building operations.
Background technology:
Because the high speed development and the extensive use of multi-nodal enlarging castinplace pile, to the size of the squeezed power of the horizontal squeezed equipment of this non-uniform pile, the squeezed degree of depth and squeezed power reliability just even more important.Original squeezed equipment is owing to be subjected to the restriction in aperture, all is that the vertical force by the top hydraulic jack of squeezed equipment passes to several groups of squeezed arms and carries out the squeezed of horizontal direction.Squeezed power is so just cut down widely and vertical displacement makes hole quality can not get guaranteeing.Especially when doing large diameter pile squeezed, top oil cylinder needs bigger, heavier, thus need large-tonnage crane just at work, the expense height, difficulty is big.So just hindered the development of bigbore multi-nodal enlarging castinplace pile.
The utility model content:
The purpose of this utility model is: design a kind of gradient pushing and enlarging device, finish the squeezed work of side down hole in the construction of multi-nodal enlarging castinplace pile.This device be gradient carry out squeezedly, the side degree of depth when squeezed can strengthen; Because be directly laterally squeezed, compare with traditional extruding-spreading device that transfers lateral force to from vertical force, increased substantially operating efficiency, squeezed strength is big and speed is fast, does not have the transfer problem of initial angle and power.Especially solved the reaming problem of bigbore multi-nodal enlarging stake, make originally can't be squeezed hardpan can carry out reaming.Thereby effectively improve the bearing capacity of stake.This device volume is little, and is in light weight, also need not large-tonnage crane coordinating operation in the construction, and construction cost is reduced significantly.And it is simple to operation, quick, reliable.
The utility model is achieved in that it is by connecting rod, squeezed arm, terminal pad, pivot pin and gradient hydraulic jack are formed up and down.Connect the gradient hydraulic jack by connecting rod, the gradient hydraulic jack comprises large tank, middle oil cylinder and piston rod.Oil cylinder during large tank connects, middle oil cylinder connects piston rod, piston rod with in squeezed arm is connected, in squeezed arm be connected with time squeezed arm with last squeezed arm by pivot pin, go up squeezed arm and be connected with last terminal pad by pivot pin again; Squeezed arm is connected upper and lower terminal pad and connecting rod socket with following terminal pad by pivot pin down.
Good effect of the present utility model is: horizontal when squeezed, squeezedly go out trapezoidal die cavity, and make the enlarged footing after the cast have stronger shear resistant.Because of being directly laterally squeezed, little to soil disturbance, so the squeezed die cavity of finishing is stable, is difficult for slump and squeezed power and increases, this device be gradient carry out squeezedly, the side degree of depth when squeezed strengthens; Because be directly laterally squeezed, compare with traditional extruding-spreading device that transfers lateral force to from vertical force, increased substantially operating efficiency, strength is big and speed is fast, does not have the transfer problem of initial angle and power.Especially solved the reaming problem of bigbore multi-nodal enlarging stake, make originally can't be squeezed hardpan can carry out reaming.Thereby effectively improve the bearing capacity of stake.This device volume is little, and is in light weight, also need not large-tonnage crane coordinating operation in the construction, and construction cost is reduced significantly.And behaviour does simple and direct, quick, reliable.
Description of drawings:
Fig. 1 is the utility model structural representation
Fig. 2 is the plan structure schematic diagram of the utility model gradient oil cylinder
Fig. 3 is another embodiment plan structure schematic diagram of the utility model gradient oil cylinder
The specific embodiment:
As shown in Figure 1: 15 two of connecting rod 13 built-in high pressure oil inlet pipes 14 and flowlines are connected with gradient large tank 10; Large tank 10 and middle oil cylinder 9 sockets, piston rod 8 is connected with middle oil cylinder 9, simultaneously again with in squeezed arm 5 be connected, in squeezed arm 5 be connected with last squeezed arm 7 by pivot pin 6, go up squeezed arm 7 and be connected with last terminal pad 12 by pivot pin 11 again, last terminal pad 12 again with connecting rod 13 sockets, in squeezed arm 5 pass through pivot pin 4 again and be connected with time squeezed arm 3, squeezed arm 3 is connected with following terminal pad 1 by pivot pin 2 again down, following terminal pad 1 and connecting rod 13 sockets.
This device is performed such work, oil inlet pipe 14 oil-feeds when squeezed, oil cylinder 9, piston rod 8 orders are extruded in the promotion, squeezed arm 7,3 was extruded simultaneously about squeezed arm 5 reached during piston rod 8 drove, terminal pad 12,1 moves up and down along connecting rod 13 up and down, after squeezing process is finished, flowline 15 oil-feeds, thus make middle oil cylinder 9 and piston rod 8 reclaim the return that drives squeezed arm and upper and lower terminal pad 12,1.For reclaiming the position, solid line position is for extruding the position as the figure dotted line position.
Claims (1)
- A kind of gradient pushing and enlarging device, it by: squeezed arm, oil cylinder, piston rod, pivot pin, turnover oil pipe, terminal pad, connecting rod are formed up and down; It is characterized in that: described oil cylinder is the gradient hydraulic jack, is made up of large tank, middle oil cylinder and piston rod; Connecting rod connects the gradient hydraulic jack; Oil cylinder, middle oil cylinder connected piston rod during large tank connected, piston rod with in squeezed arm be connected, in squeezed arm be connected with squeezed arm down by pivot pin and last squeezed arm, going up squeezed arm is connected with last terminal pad by pivot pin again, squeezed arm is connected terminal pad and connecting rod socket up and down with following terminal pad by pivot pin down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420121950 CN2760112Y (en) | 2004-12-31 | 2004-12-31 | Gradient extrusion-expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420121950 CN2760112Y (en) | 2004-12-31 | 2004-12-31 | Gradient extrusion-expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2760112Y true CN2760112Y (en) | 2006-02-22 |
Family
ID=36082313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420121950 Expired - Lifetime CN2760112Y (en) | 2004-12-31 | 2004-12-31 | Gradient extrusion-expansion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2760112Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100373011C (en) * | 2004-12-31 | 2008-03-05 | 贺德新 | Gradient pushing and enlarging device |
| CN102071681A (en) * | 2011-01-18 | 2011-05-25 | 北京航空航天大学 | Extrusion-expansion device for whole pile long extrusion-expansion bored concrete pile construction and construction method |
| CN102322061A (en) * | 2011-06-21 | 2012-01-18 | 北京航空航天大学 | Construction device and construction method of end support anchor rod based on extruding-extending pore forming |
| CN109973008A (en) * | 2019-05-06 | 2019-07-05 | 北京林业大学 | Plant seedlings diameter changing drilling tool space development mechanism in rock |
-
2004
- 2004-12-31 CN CN 200420121950 patent/CN2760112Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100373011C (en) * | 2004-12-31 | 2008-03-05 | 贺德新 | Gradient pushing and enlarging device |
| CN102071681A (en) * | 2011-01-18 | 2011-05-25 | 北京航空航天大学 | Extrusion-expansion device for whole pile long extrusion-expansion bored concrete pile construction and construction method |
| CN102071681B (en) * | 2011-01-18 | 2012-05-30 | 北京航空航天大学 | Extrusion-expansion device for whole pile long extrusion-expansion bored concrete pile construction and construction method |
| CN102322061A (en) * | 2011-06-21 | 2012-01-18 | 北京航空航天大学 | Construction device and construction method of end support anchor rod based on extruding-extending pore forming |
| CN109973008A (en) * | 2019-05-06 | 2019-07-05 | 北京林业大学 | Plant seedlings diameter changing drilling tool space development mechanism in rock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HE DEXIN Free format text: FORMER OWNER: ZHONGKUO SCI. + TECH. CO., LTD., BEIJING Effective date: 20060616 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060616 Address after: 100089, Beijing, Haidian District, far road, Century City, Yuanda Park, zone 5, building 3, unit 6G Patentee after: He Dexin Address before: 100080 Beijing city Haidian District Danleng Street No. 18 wealth building room 508 Patentee before: Zhongkuo Sci. & Tech. Co., Ltd., Beijing |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080305 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |