CN204662435U - The recoverable prestressed anchor head of a kind of pressure dispersing type - Google Patents
The recoverable prestressed anchor head of a kind of pressure dispersing type Download PDFInfo
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- CN204662435U CN204662435U CN201520268436.9U CN201520268436U CN204662435U CN 204662435 U CN204662435 U CN 204662435U CN 201520268436 U CN201520268436 U CN 201520268436U CN 204662435 U CN204662435 U CN 204662435U
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Abstract
The utility model relates to the recoverable prestressed anchor head of a kind of pressure dispersing type, comprising: the first anchor head, and it comprises: the first outer anchor body, interior anchor post, electric heater unit and intermediate plate; Interior anchor post is made up of low melting material.At least one second anchor head, comprising: the second outer anchor body, interior anchor post, electric heater unit and intermediate plate; Second outer anchor body is provided with through wires hole, passes for steel strand; Second outer anchor body is provided with slip casting pore, passes for Grouting Pipe.Penetrate the first bundle steel strand in first outer anchor body, the first bundle steel strand penetrate intermediate plate; Penetrate the first bundle steel strand and the second bundle steel strand in second outer anchor body, the first bundle steel strand penetrate through wires hole, and the second bundle steel strand penetrate intermediate plate.The utility model anchor head can facilitate, reclaim steel strand easily; During use, steel strand are divided into two bundles or multi beam, the steel strand of different bundle are locked by different anchor heads respectively, and pulling force, pressure dissipation are on different anchor heads, and anchor head uniform force, steel strand not easily loosen, anchor head pressurized reduces, not fragile.
Description
Technical field
The utility model belongs to geotechnical engineering anchor cable fastening devices technical field, particularly relates to the recoverable prestressed anchor head of a kind of pressure dispersing type.
Background technology
Current city accelerates, Urban Underground Space Excavation is more and more paid attention to, the foundation ditch carrying out construction of super highrise building is also more and more darker, and current underground concealed engineering, geotechnical slope improvement also more and more paid attention to, the application of prestressed anchorage technology is got more and more, consumption as the steel, steel strand etc. of main bearing member is also increasing, and its result of use is also better.
Prestress anchoraging is a kind of measure increasing retaining structure or stability of rock-soil body with anchoring process.Its method is that drilling passes slide plane that is that likely slide or that slid over, one end of reinforcing bar (or cable wire) is fixed in the stable Rock And Soil at the bottom of hole, reinforcing bar is strained so that can certain prestressing force be produced again, then the other end of reinforcing bar is fixed on Rock And Soil or retaining structure surface, utilizing the screen resilience of reinforcing bar to compress can slidable Rock And Soil or retaining structure, to increase the shear strength on slide plane, thus reach the object improving Rock And Soil or retaining structure stability.Prestress anchorage cable is made up of free segment and anchoring section.
But traditional prestress anchorage cable is disposable, be expendable, it all can be retained in original soil layer after completing function, sometimes the building line of adjacent architectural can also be invaded, this not only causes the waste of material, and the exploitation of the adjacent underground space produces obstacle, strengthens difficulty of construction.
In addition, steel strand are all locked by an anchor head, and whole pulling force, pressure all concentrate on an anchor head, make anchor head stressed concentrated, and easy generation steel strand loosen, the problem of anchor head fail in compression.
Utility model content
The utility model provides a kind of pressure dispersing type recoverable prestressed anchor head, technical problem to be solved is traditional prestress anchorage cable is single use, not only cause the waste of material, also increase the development obstacles of the adjacent underground space, strengthen difficulty of construction; And steel strand are all locked by an anchor head, whole pulling force, pressure all concentrate on an anchor head, make anchor head stressed concentrated, and easy generation steel strand loosen, the problem of anchor head fail in compression.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: the recoverable prestressed anchor head of a kind of pressure dispersing type, for locking steel strand; It comprises:
First anchor head, described first anchor head comprises:
First outer anchor body, described first outer anchor body is provided with at least one half anchor hole;
Interior anchor post, described interior anchor post is provided with at least one half anchor hole; Interior anchor post is arranged in described outer anchor body, and half anchor hole of outer anchor body forms anchor hole with half anchor hole of corresponding interior anchor post; Described interior anchor post is made up of low melting material;
Electric heater unit, is arranged on described interior anchor post inner, low melting material can be made to melt; The fusing point of described low melting material is between 100 DEG C ~ 120 DEG C;
Intermediate plate, described intermediate plate is arranged in described anchor hole;
At least one second anchor head, described second anchor head comprises:
Second outer anchor body, described second outer anchor body is provided with at least one half anchor hole; Described second outer anchor body is provided with through wires hole, passes for steel strand;
Interior anchor post, described interior anchor post is provided with at least one half anchor hole; Described interior anchor post is provided with slip casting pore, passes for Grouting Pipe; Interior anchor post is arranged in described outer anchor body, and half anchor hole of outer anchor body forms anchor hole with half anchor hole of corresponding interior anchor post; Described interior anchor post is made up of low melting material;
Electric heater unit, is arranged on described interior anchor post inner, low melting material can be made to melt; The fusing point of described low melting material is between 100 DEG C ~ 120 DEG C;
Intermediate plate, described intermediate plate is arranged in described anchor hole;
Penetrate the first bundle steel strand in described first outer anchor body, the first bundle steel strand penetrate intermediate plate, and when tractive first restraints steel strand, frictional force provides the tensioning fixation power of intermediate plate, and intermediate plate is automatically locked by the interior anchor post of extruding; The first bundle steel strand and the second bundle steel strand are penetrated in described second outer anchor body, first bundle steel strand penetrate through wires hole, second bundle steel strand penetrate intermediate plate, and when tractive second restraints steel strand, frictional force provides the tensioning fixation power of intermediate plate, and intermediate plate is automatically locked by the interior anchor post of extruding.
The recoverable prestressed anchor head of the utility model pressure dispersing type as above, further, also comprises seal closure, and described seal closure covers described outer anchor body and interior anchor post, is connected with the sealed bottom of described outer anchor body.
The recoverable prestressed anchor head of the utility model pressure dispersing type as above, further, also comprises support, and described support is provided with through wires hole, and steel strand, through described through wires hole, are tied a knot for preventing steel strand.
The recoverable prestressed anchor head of the utility model pressure dispersing type as above, further, described electric heater unit is connected with control member, power supply by wire, and whether control member works for controlling electric heater unit; Power supply provides the energy for electric heater unit.
The recoverable prestressed anchor head of the utility model pressure dispersing type as above, further, one end to the other end of described anchor hole is diminishing structure; Described clamping piece structure and described anchor hole structure suitable and be arranged in described anchor hole.
The recoverable prestressed anchor head of the utility model pressure dispersing type as above, further, described first outer anchor body comprises outer anchor ring, top board and base plate; The inwall of outer anchor ring has several half anchor holes be arranged symmetrically with along ring central axis; The welded top of described top board and described outer anchor ring, the bottom welding of described base plate and described outer anchor ring; Top board, base plate are provided with the perforate corresponding with half anchor hole position of outer anchor ring.
The recoverable prestressed anchor head of the utility model pressure dispersing type as above, further, described second outer anchor body comprises outer anchor ring, top board and base plate; The inwall of outer anchor ring has several half anchor holes be arranged symmetrically with along ring central axis; Outer anchor ring is provided with through wires hole, passes for steel strand; The welded top of described top board and described outer anchor ring, the bottom welding of described base plate and described outer anchor ring; Top board, base plate are provided with the perforate corresponding with half anchor hole of outer anchor ring, through wires hole and Grouting Pipe hole site.
The beneficial effects of the utility model are:
When the utility model hot melt self-tipping type anchor head uses, penetrate steel strand, pass after outer anchor body certain length until steel strand, intermediate plate is put in taper hole in the middle of steel strand, outer anchor body, interior anchor post, like this when applying pulling force to steel strand, steel strand, intermediate plate, outer anchor body and interior anchor post can mutual jam-packeds; The pulling force of steel strand applying is converted into the frictional force of steel strand and intermediate plate inside, then is converted into the pressure of intermediate plate and interior anchor post, then be delivered to base plate, be finally delivered on cement slurry, be delivered in surrounding soil by the friction between cement slurry and the soil body.During recovery prestress anchorage cable, internal anchor post heats, and the heat of electric heater unit release makes interior anchor post melt, and then intermediate plate launches, and the frictional force of steel strand and intermediate plate disappears, and can facilitate, reclaim steel strand easily.
Another advantage of the utility model is, steel strand is divided into two bundles or multi beam, and the steel strand of different bundle are locked by different anchor heads respectively, pulling force, pressure dissipation are on different anchor heads, anchor head uniform force, steel strand not easily loosen, anchor head pressurized reduces, not fragile.
Accompanying drawing explanation
The one second anchor head generalized section that Fig. 1 provides for the utility model embodiment;
The one second anchor head top view that Fig. 2 provides for the utility model embodiment;
Fig. 3 is the sectional drawing of Fig. 2;
The outer anchor ring schematic diagram of a kind of second outer anchor body that Fig. 4 provides for the utility model embodiment;
Fig. 5 is the A-A sectional drawing of Fig. 4;
Fig. 6 is the B-B sectional drawing of Fig. 4;
The outer anchor ring schematic diagram of the another kind second outer anchor body that Fig. 7 provides for the utility model embodiment;
The outer anchor ring schematic diagram of a kind of first outer anchor body that Fig. 8 provides for the utility model embodiment;
Anchor post schematic diagram in a kind of second anchor head that Fig. 9 provides for the utility model embodiment;
Figure 10 is the A-A sectional drawing of Fig. 9;
Figure 11 is the B-B sectional drawing of Fig. 9;
Anchor post schematic diagram in a kind of first anchor head that Figure 12 provides for the utility model embodiment;
The base plate schematic diagram of a kind of second outer anchor body that Figure 13 provides for the utility model embodiment;
Figure 14 is the sectional drawing of Figure 13;
A kind of support schematic diagram that Figure 15 provides for the utility model embodiment;
Figure 16 is the sectional drawing of Figure 15.
In accompanying drawing, the list of parts representated by each label is as follows:
1, the second outer anchor body, 11, outer anchor ring, 111, half anchor hole of outer anchor ring, 112, through wires hole, 12, top board, 13, base plate, 131, splicing groove, 2, interior anchor post, 21, half anchor hole of interior anchor post, 22, slip casting pore, 3, electric heater unit, 4, intermediate plate, 5, seal closure, 6, support.
Detailed description of the invention
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
Technical problem to be solved in the utility model is traditional prestress anchorage cable is single use, not only causes the waste of material, also increases the development obstacles of the adjacent underground space, strengthens difficulty of construction; And steel strand are all locked by an anchor head, whole pulling force, pressure all concentrate on an anchor head, make anchor head stressed concentrated, and easy generation steel strand loosen, anchor head fail in compression.
The recoverable prestressed anchor head of a kind of pressure dispersing type, for locking steel strand; It comprises:
First anchor head, described first anchor head comprises:
First outer anchor body, described first outer anchor body is provided with at least one half anchor hole;
Interior anchor post, described interior anchor post is provided with at least one half anchor hole; Interior anchor post is arranged in described outer anchor body, and half anchor hole of outer anchor body forms anchor hole with half anchor hole of corresponding interior anchor post; Described interior anchor post is made up of low melting material; As shown in figure 12, be anchor post schematic diagram in a kind of first anchor head that the utility model embodiment provides, described interior anchor post is provided with two and half anchor holes.
Electric heater unit, is arranged on described interior anchor post inner, low melting material can be made to melt; The fusing point of described low melting material is between 100 DEG C ~ 120 DEG C;
Intermediate plate, described intermediate plate is arranged in described anchor hole;
At least one second anchor head, as shown in Figure 1, Figure 2 and Figure 3, described second anchor head comprises:
Second outer anchor body 1, described second outer anchor body is provided with at least one half anchor hole; Described second outer anchor body is provided with through wires hole 112, passes for steel strand;
Interior anchor post 2, described interior anchor post is provided with at least one half anchor hole (half anchor hole 21 of interior anchor post); Described interior anchor post is provided with slip casting pore 22, passes for Grouting Pipe; Interior anchor post is arranged in described outer anchor body, and half anchor hole of outer anchor body forms anchor hole with half anchor hole of corresponding interior anchor post; Described interior anchor post is made up of low melting material; As shown in Fig. 9, Figure 10 and Figure 11, be anchor post schematic diagram in a kind of second anchor head that the utility model embodiment provides, described interior anchor post is provided with two and half anchor holes and a slip casting pore.
Electric heater unit 3, is arranged on described interior anchor post inner, low melting material can be made to melt; The fusing point of described low melting material is between 100 DEG C ~ 120 DEG C;
Intermediate plate 4, described intermediate plate is arranged in described anchor hole;
Penetrate the first bundle steel strand in described first outer anchor body, the first bundle steel strand penetrate intermediate plate, and tractive first is restrainted.During steel strand, frictional force provides the tensioning fixation power of intermediate plate, and intermediate plate is automatically locked by anchor post in extruding; The first bundle steel strand and the second bundle steel strand are penetrated in described second outer anchor body, first bundle steel strand penetrate through wires hole, second bundle steel strand penetrate intermediate plate, and when tractive second restraints steel strand, frictional force provides the tensioning fixation power of intermediate plate, and intermediate plate is automatically locked by the interior anchor post of extruding.
The utility model is as follows for the assembling and use procedure of reclaiming the hot melt self-tipping type anchor head of anchor cable:
During assembling, interior anchor post opsition dependent is put into outer anchor body, half anchor hole of outer anchor body forms anchor hole with half anchor hole of corresponding interior anchor post, and interior anchor post is bound in a relatively airtight space, and when Shi Hanzhang, it is stressed more reasonable.In interior anchor post, be also provided with electric heater unit, wire is drawn outside seal closure, so that internal anchor post heats when reclaiming prestress anchorage cable.
After completing above-mentioned steps, penetrate steel strand, penetrate the first bundle steel strand and the second bundle steel strand in the second outer anchor body, the first bundle steel strand penetrate through wires hole, and the second bundle steel strand penetrate intermediate plate; Penetrate the first bundle steel strand passed by the through wires hole of the second outer anchor body in first outer anchor body, the first bundle steel strand penetrate intermediate plate.Pass after outer anchor body certain length until steel strand, in steel strand, outer anchor body, taper hole in the middle of interior anchor post, put into intermediate plate, like this when applying pulling force to steel strand, steel strand, intermediate plate, outer anchor body and interior anchor post can mutual jam-packeds; The pulling force of steel strand applying is converted into the frictional force of steel strand and intermediate plate inside, then is converted into the pressure of intermediate plate and interior anchor post, then be delivered to base plate, be finally delivered on cement slurry, be delivered in surrounding soil by the friction between cement slurry and the soil body.The utility model has the advantage of that steel strand are divided into two bundles or multi beam, the steel strand of different bundle are locked by different anchor heads respectively, and pulling force, pressure dissipation are on different anchor heads, and anchor head uniform force, steel strand not easily loosen, anchor head pressurized reduces, not fragile.
Outside ground tackle, through the steel strand outsourcing rubber sleeve of anchor hole, steel strand and cement paste are isolated, and steel strand are coated with one deck grease outward, to reduce the frictional force of itself and rubber sleeve, so that the corresponding reduction of recovery power when reclaiming steel strand.
Grouting Pipe passes the second anchor head, until the first anchor head; Clamped by rubber sheet gasket between Grouting Pipe and seal closure, guarantee that cement paste does not enter seal closure.Grouting Pipe is made through the part steel of the second anchor head, and remainder is that common material is made, this way be make Grouting Pipe can resist in anchor post pressurized pressure that Grouting Pipe is produced, the interior anchor post shape of maintenance, does not deform.
During recovery prestress anchorage cable, internal anchor post heats, and the heat of electric heater unit release makes interior anchor post melt, and then intermediate plate launches, and the frictional force of steel strand and intermediate plate disappears, and can facilitate, reclaim steel strand easily.
In the specific implementation process of the recoverable prestressed anchor head of the above-mentioned pressure dispersing type of the utility model, described first outer anchor body comprises outer anchor ring 11, top board 12 and base plate 13; The inwall of outer anchor ring has several half anchor holes be arranged symmetrically with along ring central axis (half anchor hole 111 of outer anchor ring); As shown in Figure 8, be the outer anchor ring schematic diagram of a kind of first outer anchor body that the utility model embodiment provides, there are two and half anchor holes; The welded top of described top board and described outer anchor ring, the bottom welding of described base plate and described outer anchor ring; Top board, base plate are provided with the perforate corresponding with half anchor hole position of outer anchor ring.
Outer anchor ring is made by steel, and itself and top board, base plate form the chamber of a relative closure, so that anchor post in loading, during Shi Hanzhang, interior anchor post is in the state of three-dimensional pressurized, and its modulus is increased, and reduces distortion.
In the specific implementation process of the recoverable prestressed anchor head of the above-mentioned pressure dispersing type of the utility model, described second outer anchor body comprises outer anchor ring 11, top board 12 and base plate 13; The inwall of outer anchor ring has several half anchor holes be arranged symmetrically with along ring central axis (half anchor hole 111 of outer anchor ring); Outer anchor ring is provided with through wires hole 112, passes for steel strand; The welded top of described top board and described outer anchor ring, the bottom welding of described base plate and described outer anchor ring; Top board, base plate are provided with the perforate corresponding with half anchor hole of outer anchor ring, through wires hole and Grouting Pipe hole site.As shown in Figs. 13 and 14, for base plate 13 schematic diagram of a kind of second outer anchor body that the utility model embodiment provides, it comprises through wires hole 112 and slip casting pore 22, in order to make, base plate and outer anchor ring assemble more easily, sealing effectiveness is better, and base plate is provided with the splicing groove 131 with outer anchor ring bottom groove adaptation.
In one embodiment, as shown in Figure 4, Figure 5 and Figure 6, be the outer anchor ring schematic diagram of a kind of second outer anchor body that the utility model embodiment provides, two and half anchor holes shown in figure, four through wires holes.
In another kind of embodiment, as shown in Figure 7, be the outer anchor ring schematic diagram of the another kind second outer anchor body that the utility model embodiment provides, two and half anchor holes shown in figure, two through wires holes.
Outer anchor ring forms the first second anchor head as shown in Figure 4; Outer anchor ring forms the second second anchor head as shown in Figure 7; Outer anchor ring as shown in Figure 8 forms a kind of first anchor head.All steel strand are divided into three beams, are respectively the first bundle, the second bundle and three beams; Often a branch of is two steel strand.During use, the first bundle, the second bundle and three beams steel strand are all through the first the second anchor head.First bundle and the second bundle steel strand are all through the second second anchor head.First bundle steel strand connect the first anchor head.The advantage of above-mentioned anchor head is, the steel strand of different bundle are locked by different anchor heads respectively, and pulling force, pressure dissipation are on different anchor heads, and anchor head uniform force, steel strand not easily loosen, anchor head pressurized reduces, not fragile.
In the recoverable prestressed anchor head of the above-mentioned pressure dispersing type of the utility model, there is the problem that cement paste enters anchor head in use, the cement solidified increases the frictional force between outer anchor body, interior anchor ring, intermediate plate, affects the recovery of steel strand.Improve further above-described embodiment, hot melt self-tipping type anchor head also comprises seal closure 5, and described seal closure covers described outer anchor body and interior anchor post, is connected with the sealed bottom of described outer anchor body.Be buckled in by seal closure on base plate, the two is fixedly connected with (as welding), in case cement paste enters anchor head, thus affects the recovery of anchor cable.
In the recoverable prestressed anchor head of the above-mentioned pressure dispersing type of the utility model, there is the problem of the steel strands wound knotting of different bundle in use, affect the recovery of steel strand.Improve further above-described embodiment, also comprise support 6, as shown in Figure 15 and Figure 16, described support is provided with through wires hole 112 and slip casting pore 22, and steel strand, through described through wires hole, are tied a knot for preventing steel strand.During use by support installing between adjacent anchor head.
In the specific implementation process of the recoverable prestressed anchor head of the above-mentioned pressure dispersing type of the utility model, described electric heater unit is connected with control member, power supply by wire, and whether control member works for controlling electric heater unit; Power supply provides the energy for electric heater unit.When pending prestress anchorage cable reclaims, energising makes electric heater unit heat, and interior anchor post is melted, and intermediate plate comes off, and reclaims steel strand.
In the recoverable prestressed anchor head of the above-mentioned pressure dispersing type of the utility model, one end to the other end of described anchor hole is diminishing structure; Described clamping piece structure and described anchor hole structure suitable and be arranged in described anchor hole.One end of described anchor hole is diminishing structural form and frustoconical construction to the other end, is convenient to intermediate plate and moves in anchor hole, forms the power of clamping steel strand.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. the recoverable prestressed anchor head of pressure dispersing type, for locking steel strand; It is characterized in that, comprising:
First anchor head, described first anchor head comprises:
First outer anchor body, described first outer anchor body is provided with at least one half anchor hole;
Interior anchor post, described interior anchor post is provided with at least one half anchor hole; Interior anchor post is arranged in described outer anchor body, and half anchor hole of outer anchor body forms anchor hole with half anchor hole of corresponding interior anchor post; Described interior anchor post is made up of low melting material;
Electric heater unit, is arranged on described interior anchor post inner, low melting material can be made to melt; The fusing point of described low melting material is between 100 DEG C ~ 120 DEG C;
Intermediate plate, described intermediate plate is arranged in described anchor hole;
At least one second anchor head, described second anchor head comprises:
Second outer anchor body, described second outer anchor body is provided with at least one half anchor hole; Described second outer anchor body is provided with through wires hole, passes for steel strand; Described second outer anchor body is provided with slip casting pore, passes for Grouting Pipe;
Interior anchor post, described interior anchor post is provided with at least one half anchor hole; Described interior anchor post is provided with slip casting pore, passes for Grouting Pipe; Interior anchor post is arranged in described outer anchor body, and half anchor hole of outer anchor body forms anchor hole with half anchor hole of corresponding interior anchor post; Described interior anchor post is made up of low melting material;
Electric heater unit, is arranged on described interior anchor post inner, low melting material can be made to melt; The fusing point of described low melting material is between 100 DEG C ~ 120 DEG C;
Intermediate plate, described intermediate plate is arranged in described anchor hole;
Penetrate the first bundle steel strand in described first outer anchor body, the first bundle steel strand penetrate intermediate plate, and when tractive first restraints steel strand, frictional force provides the tensioning fixation power of intermediate plate, and intermediate plate is automatically locked by the interior anchor post of extruding; The first bundle steel strand and the second bundle steel strand are penetrated in described second outer anchor body, first bundle steel strand penetrate through wires hole, second bundle steel strand penetrate intermediate plate, and when tractive second restraints steel strand, frictional force provides the tensioning fixation power of intermediate plate, and intermediate plate is automatically locked by the interior anchor post of extruding.
2. the recoverable prestressed anchor head of pressure dispersing type according to claim 1, is characterized in that, also comprise seal closure, and described seal closure covers described outer anchor body and interior anchor post, is connected with the sealed bottom of described outer anchor body.
3. the recoverable prestressed anchor head of pressure dispersing type according to claim 1, is characterized in that, also comprise support, and described support is provided with through wires hole, and steel strand, through described through wires hole, are tied a knot for preventing steel strand.
4. the recoverable prestressed anchor head of pressure dispersing type according to claim 1, is characterized in that, described electric heater unit is connected with control member, power supply by wire, and whether control member works for controlling electric heater unit; Power supply provides the energy for electric heater unit.
5. the recoverable prestressed anchor head of pressure dispersing type according to claim 1, is characterized in that, one end to the other end of described anchor hole is diminishing structure; Described clamping piece structure and described anchor hole structure suitable and be arranged in described anchor hole.
6. the recoverable prestressed anchor head of the pressure dispersing type according to any one of claim 1-5, is characterized in that, described first outer anchor body comprises outer anchor ring, top board and base plate; The inwall of outer anchor ring has several half anchor holes be arranged symmetrically with along ring central axis; The welded top of described top board and described outer anchor ring, the bottom welding of described base plate and described outer anchor ring; Top board, base plate are provided with the perforate corresponding with half anchor hole position of outer anchor ring.
7. the recoverable prestressed anchor head of pressure dispersing type according to claim 6, is characterized in that, described second outer anchor body comprises outer anchor ring, top board and base plate; The inwall of outer anchor ring has several half anchor holes be arranged symmetrically with along ring central axis; Outer anchor ring is provided with through wires hole, passes for steel strand; The welded top of described top board and described outer anchor ring, the bottom welding of described base plate and described outer anchor ring; Top board, base plate are provided with the perforate corresponding with half anchor hole of outer anchor ring, through wires hole and Grouting Pipe hole site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520268436.9U CN204662435U (en) | 2015-04-29 | 2015-04-29 | The recoverable prestressed anchor head of a kind of pressure dispersing type |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520268436.9U CN204662435U (en) | 2015-04-29 | 2015-04-29 | The recoverable prestressed anchor head of a kind of pressure dispersing type |
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| CN204662435U true CN204662435U (en) | 2015-09-23 |
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| CN201520268436.9U Expired - Fee Related CN204662435U (en) | 2015-04-29 | 2015-04-29 | The recoverable prestressed anchor head of a kind of pressure dispersing type |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818717A (en) * | 2015-04-29 | 2015-08-05 | 中国建筑股份有限公司 | Pressure dispersion-type recoverable prestressed anchor |
| EP3543407A4 (en) * | 2016-11-18 | 2020-06-17 | Suzhou Ng. Foundation Engineering Co., Ltd | Hot-melt anchor head |
-
2015
- 2015-04-29 CN CN201520268436.9U patent/CN204662435U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818717A (en) * | 2015-04-29 | 2015-08-05 | 中国建筑股份有限公司 | Pressure dispersion-type recoverable prestressed anchor |
| CN104818717B (en) * | 2015-04-29 | 2016-08-24 | 中国建筑股份有限公司 | A kind of recoverable prestressed anchor head of pressure dispersing type |
| EP3543407A4 (en) * | 2016-11-18 | 2020-06-17 | Suzhou Ng. Foundation Engineering Co., Ltd | Hot-melt anchor head |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20180429 |
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| CF01 | Termination of patent right due to non-payment of annual fee |