CN215253044U

CN215253044U - Self sealss loading unit and based on open type load box structure of this unit

Info

Publication number: CN215253044U
Application number: CN202120379465.8U
Authority: CN
Inventors: 张自平; 符磊; 王磊; 冯校楠; 马良
Original assignee: Zhejiang Ougan Machinery Manufacturing Co ltd
Current assignee: Zhejiang Ougan Machinery Manufacturing Co ltd
Priority date: 2021-02-19
Filing date: 2021-02-19
Publication date: 2021-12-21
Anticipated expiration: 2031-02-19

Abstract

The utility model discloses a self sealss loading unit and based on open type load case structure of this unit, steel bushing and lower steel bushing welding go up it, and the welding of steel bushing bottom surface has the bottom plate down, and the seal ring is located bottom plate top and border and is located between steel bushing and the lower steel bushing, goes up the steel bushing, sealing ring, bottom plate combination form the loading chamber down, and the bush is placed in the sealing ring top to the bush bottom surface is connected with the sealing ring, and the sealing ring reciprocates and makes loading chamber lifting or decline, drives bush lifting or decline. The loading unit, the upper cushion plate arranged above the loading unit and the lower cushion plate arranged below the loading unit are combined into a loading unit assembly, the multiple loading unit assemblies are arranged in an annular mode, and reinforcing rings are welded above and below the multiple loading unit assemblies. The utility model discloses promote the job stabilization nature who has improved the loading unit, realized the modular structure of open type load case, promoted the production installation effectiveness of load case, guaranteed the stability and the reliability of load case work among the self-balancing static load test system.

Description

Self sealss loading unit and based on open type load box structure of this unit

Technical Field

The utility model relates to a self-balancing method pile foundation static load detection area especially relates to a self sealss loading unit and based on open type load box structure of this unit.

Background

A self-balancing pile foundation static load detection technology is a static load pile test method which provides counter force by the weight of a pile body without the aid of external force. At present, with the popularization of the application of the static load detection technology of the self-balancing pile foundation, higher requirements are put forward on the economy and convenience of the detection technology. The existing loading unit is an oil cylinder type loading unit, and has a complex structure and poor stability and sealing performance.

Disclosure of Invention

The utility model aims at prior art's defect, provide a self sealss loading unit and based on open type load box structure of this unit.

In order to realize the above purpose, the utility model adopts the following technical scheme:

the utility model provides a self sealss loading unit, includes steel bushing, lower steel bushing, sealing ring, bottom plate, bush and bush packing ring, go up the steel bushing and weld with lower steel bushing, and the welding of steel bushing bottom surface has the bottom plate down, and the seal ring is located bottom plate top and border and is located between steel bushing and the lower steel bushing, go up steel bushing, lower steel bushing, sealing ring, bottom plate combination and form the loading chamber, the bush is placed in the sealing ring top to the bush bottom surface is connected with the sealing ring, the sealing ring reciprocates and makes loading chamber lifting or decline, drives bush lifting or decline.

Further, the bearing device also comprises a lining washer which is fixed above the lining.

Furthermore, the sealing ring is H-shaped, the edge of the sealing ring is downwards folded to form a folded edge with an arc-shaped top, and the extending part of the folded edge is arranged at the welding seam between the upper steel sleeve and the lower steel sleeve.

Furthermore, an annular groove is formed in the bottom of the lining gasket, and a sealing ring is arranged in the annular groove.

Furthermore, a loading port is arranged in the center of the bottom plate.

The utility model discloses still include an open load box structure based on self sealss loading unit, including beaded finish and loading unit subassembly, the loading unit is constituteed with the upper padding plate of its top installation, the lower bolster of below installation into loading unit subassembly, and a plurality of loading unit subassembly annular are arranged and are set up and top and the equal welded beaded finish in below, the beaded finish includes inner ring and outer loop, inner ring and outer loop are direct to be connected through the connecting plate.

Further, still include the conical body, go up displacement bar subassembly, pull rod and interior guide bar down, the upper and lower both sides of loading unit subassembly are located respectively to the conical body, it sets up inboard at the outer loop of beaded finish to go up displacement bar subassembly, displacement bar subassembly equidistance down, the pull rod is located inboard and the connecting plate department that is located at the outer loop of beaded finish, interior guide bar welds on the mid-plane of the inner ring between two beaded finishes, and interior guide bar lateral part is tangent with the inner ring face.

Furthermore, at least two rib plates are fixed on the outer side of the conical body, a plurality of holes are formed in the rib plates, and the outer sides of the rib plates are welded with the reinforcing rings.

Further, the lower displacement rod assembly is provided with a pre-opening cut which is flush with the opening face of the loading unit.

Furthermore, an upper concrete block and a lower concrete block are precast in the conical body, and the strength of the upper concrete block and the strength of the lower concrete block are not lower than that of the pile body concrete.

Adopt the technical scheme of the utility model, the beneficial effects of the utility model are that: the utility model realizes the self-sealing effect of the loading unit through the improved sealing ring; meanwhile, based on the loading unit, the modular assembly of the load box is realized through the assembly structure of the open type load box. The utility model discloses promote the job stabilization nature who has improved the loading unit, realized the modular structure of open type load case, promoted the production installation effectiveness of load case, guaranteed the stability and the reliability of load case work among the self-balancing static load test system.

Drawings

Fig. 1 is a structural diagram of a self-sealing loading unit provided by the present invention;

fig. 2 is a cross-sectional structure view of a self-sealing loading unit provided by the present invention;

fig. 3 is a sectional view of a self-sealing loading unit in a raised state according to the present invention;

fig. 4 is a basic model structure diagram of an open type load box structure provided by the present invention;

fig. 5 is a structural diagram of an open type load box structure provided by the present invention;

fig. 6 is an exploded view of an open type load box structure provided by the present invention;

fig. 7 is a cross-sectional view of an open loadbox structure provided by the present invention;

FIG. 8 is an enlarged view at A of FIG. 7;

fig. 9 is a cross-sectional view of a loading unit assembly provided by the present invention;

fig. 10 is a schematic view of the field installation of an open type loading box structure provided by the present invention;

fig. 11 is a vertical sectional view of an open type loading box structure installed on site according to the present invention;

fig. 12 is a top view of an open load box structure installed in situ according to the present invention;

fig. 13 is a sectional view taken along the plane B-B in fig. 11.

The concrete grouting device comprises a lower steel sleeve 1, a lower steel sleeve 2, a sealing ring 3, an upper steel sleeve 4, a bottom plate 5, a lining 6, a lining gasket 7, a sealing ring 8, a welding position 9, a loading port 10, a reinforcing ring 11, a loading unit assembly 12, an upper backing plate 13, a lower backing plate 14, a loading unit 15, an upper displacement rod assembly 16, a lower displacement rod assembly 17, a pull rod 18, an inner guide rod 19, a conical body 20, a rib plate 21, a hole 22, an upper concrete block 23, a lower concrete block 24, a pre-opening notch 25, an upper guide rib 26, an upper steel rib cage 27, a lower guide rib 28, a lower steel rib cage 29, an opening surface 30, a grouting pipeline assembly 31, a grouting sleeve assembly 32, a grouting sleeve 33, a hole sealing element 34 and a telescopic steel bar.

Detailed Description

The specific embodiments of the present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, the self-sealing loading unit comprises an upper steel sleeve 3, a lower steel sleeve 1, a sealing ring 2, a bottom plate 4, a bushing 5 and a bushing gasket 6, wherein the upper steel sleeve 3 is welded with the lower steel sleeve 1, the bottom plate 4 is welded on the bottom surface of the lower steel sleeve 1, the sealing ring 2 is arranged above the bottom plate 4 and positioned between the upper steel sleeve 3 and the lower steel sleeve 1 along the edge, the upper steel sleeve 3, the lower steel sleeve 1, the sealing ring 2 and the bottom plate 4 are combined to form a loading cavity, the bushing 5 is arranged above the sealing ring 2, the bottom surface of the bushing 5 is connected with the sealing ring 2, and the outer edge of the bushing 5 is attached to the inner wall of the lower steel sleeve 1 to play a role in guiding and structure strengthening. The sealing ring 2 moves up and down to lift or lower the loading cavity, and the lining 5 is driven to lift or lower.

The upper steel sleeve 3, the lower steel sleeve 1, the sealing ring 2 and the bottom plate 4 are combined to form a loading cavity to form a self-sealing cavity, namely the loading cavity is used as the welding position 8 in the figure. The combined structure omits a sealing structure of a traditional oil cylinder type loading unit, realizes 100% of sealing effect and improves the structural stability of the loading unit.

Also included is a bushing washer 6, the bushing washer 6 being secured over the bushing 5.

The sealing ring 2 is H-shaped, the edge of the sealing ring 2 is downwards folded to form a folded edge with an arc-shaped top, and the extending part of the folded edge is arranged at the welding seam between the upper steel sleeve 3 and the lower steel sleeve 1. The upper steel sleeve 3, the lower steel sleeve 1 and the sealing ring 2 are welded and assembled at one time, so that the production efficiency and the assembly reliability are improved.

An annular groove is formed in the bottom of the lining gasket 6, and a sealing ring 7 is arranged in the annular groove. The sealing ring 7 realizes the airtight isolation effect between the upper part of the arc-shaped edge of the sealing ring 2 and the outside through the compression contact of the lower steel sleeve 1 and the lining 5, and prevents external mortar from entering and influencing the deformation lifting of the sealing ring 2.

The center of the bottom plate 4 is provided with a loading port 9, and the loading port can also be arranged at the side part of the upper steel sleeve 3 and can be flexibly arranged according to the assembly requirement.

As shown in fig. 4 and 9, an open type load box structure based on a self-sealing loading unit includes a reinforcing ring 10 and a loading unit assembly 11, the loading unit, an upper pad plate installed above the loading unit, and a lower pad plate installed below the loading unit form the loading unit assembly 11, a plurality of loading unit assemblies 11 are annularly arranged, the reinforcing rings 10 are welded above and below the loading unit assemblies, the reinforcing rings 10 include an inner ring and an outer ring, the inner ring and the outer ring are directly connected through a connecting plate, the structure is a basic model, and the model can be used as an integral verification model of the load box to perform calibration detection of the load box.

As shown in fig. 5, 6, 7, and 8, the device further includes a conical body 19, an upper displacement rod assembly, a lower displacement rod assembly 16, a pull rod 17, and an inner guide rod 18, wherein the conical body 19 is respectively disposed at the upper side and the lower side of the loading unit assembly 11, the upper displacement rod assembly and the lower displacement rod assembly 16 are equidistantly disposed at the inner side of the outer ring of the reinforcement ring 10, the pull rod 17 is disposed at the inner side of the outer ring of the reinforcement ring 10 and located at the connecting plate, the inner guide rod 18 is welded on the middle surface of the inner ring between the two reinforcement rings 10, and the side portion of the inner guide rod 18 is tangent to the inner ring surface. The number of tie rods 17 is set according to the weight and reliable hoisting of the lower reinforcement cage on site. The inner guide rod 18 plays the purpose of smooth guiding and passing of the cast-in-place concrete guide pipe under the pile body.

At least two rib plates 20 are fixed on the outer side of the conical body 19, and a plurality of holes 21 are formed in the rib plates 20 and used for improving the bonding force between the load box and concrete in the pile body. The outer side of the rib plate 20 is welded with the reinforcing ring 10, so that the connection strength of the loading unit and the reinforcing ring 10 is improved, and the integral stability of the load box is ensured.

The lower displacement rod assembly 16 is provided with a pre-opening cut 24, which pre-opening cut 24 is flush with the opening face of the loading unit to reduce the influence of external pile body concrete on the snapping-off of the displacement rod casing.

An upper concrete block 22 and a lower concrete block 23 are precast in the conical body 19, and the strength of the upper concrete block 22 and the strength of the lower concrete block 23 are not lower than that of the pile body concrete, so that the strength of the concrete around the load box is improved and ensured, and the risk of detection data distortion caused by concrete breakage due to overlarge local stress is eliminated.

As shown in fig. 10, 11, 12 and 13, the self-sealing loading unit and the open type loading box are used, and the field installation application example of the cast-in-place concrete pile is as follows:

the whole load box is arranged in the reinforcement cage, the reinforcing rings 10 on the upper side and the lower side of the load box are firmly welded with the main reinforcement, and the load box is cut off only at the position corresponding to the opening surface of the load box;

the L-shaped guide rib is welded and fixed between the main rib and the inner ring of the reinforcing ring 10 and plays a role of guiding the downward placement of the cast-in-place concrete pipe under the combined action of the inner guide rod 18, wherein 25 is an upper guide rib and 26 is a lower guide rib.

Aiming at the application of the engineering pile, the grouting sleeve assemblies 31 with the same number of sections are additionally arranged to realize the coherent action of an upper reinforcement cage and a lower reinforcement cage, and after secondary grouting reinforcement, the uplift resistance and the horizontal strength of the pile body are improved, so that the engineering application of the pile body is ensured; the grouting sleeve assembly 31 comprises a grouting sleeve 32, telescopic steel bars 34 and a rear grouting pipeline assembly 30; the grouting sleeve is welded and fixed on the inner side of the outer ring of the upper reinforcing ring 10, and the opening position corresponds to the opening surface 29 of the load box; one end of the telescopic reinforcing steel bar is welded and fixed in the lower outer ring plate, the other end of the telescopic reinforcing steel bar extends into the grouting sleeve, and the length of the telescopic reinforcing steel bar needs to ensure that the required strength of the grouting sleeve after the opening stroke of the load box is finished. The related structure also comprises: the isolated sealing effect of inner tube is realized through setting up entrance to a cave sealing member 33 and encapsulating to the telescopic entrance to a cave of slip casting, prevents the pile body cast in concrete infiltration. The grouting pipe assembly 30 is required to ensure that two pipelines are arranged one in and one out and are led out to the ground, so as to implement post-grouting.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides a self sealss loading unit, its characterized in that includes steel bushing, lower steel bushing, sealing ring, bottom plate, bush and bush packing ring, go up the steel bushing and weld with lower steel bushing, and the welding of steel bushing bottom surface has the bottom plate down, and the seal ring is located bottom plate top and border and is located between steel bushing and the lower steel bushing, go up steel bushing, lower steel bushing, sealing ring, bottom plate combination and form the loading chamber, the bush is placed in the sealing ring top to the bush bottom surface is connected with the sealing ring, the sealing ring reciprocates and makes loading chamber lifting or decline, drives bush lifting or decline.

2. The self sealing loading unit of claim 1 further comprising a bushing washer secured over the bushing.

3. The self-sealing loading unit as claimed in claim 1, wherein the sealing ring is H-shaped, and the edge of the sealing ring is folded downwards to form a folded edge with an arc-shaped top, and the extension of the folded edge is arranged at the welding seam between the upper steel sleeve and the lower steel sleeve.

4. The self-sealing loading unit of claim 1 wherein the bottom of the liner washer defines an annular groove, and a sealing ring is disposed within the annular groove.

5. A self-sealing loading unit as claimed in claim 1, wherein the base plate is centrally provided with a loading port.

6. An open type load box structure based on the self-sealing loading unit of claim 1, which comprises a reinforcing ring and a loading unit assembly, wherein the loading unit, an upper cushion plate arranged above the loading unit and a lower cushion plate arranged below the loading unit assembly form the loading unit assembly, a plurality of loading unit assemblies are arranged in an annular manner, the reinforcing rings are welded above and below the loading unit assemblies, each reinforcing ring comprises an inner ring and an outer ring, and the inner ring and the outer rings are directly connected through a connecting plate.

7. The open type load box structure of claim 6, further comprising a cone, an upper displacement rod assembly, a lower displacement rod assembly, a pull rod and an inner guide rod, wherein the cone is respectively arranged at the upper side and the lower side of the loading unit assembly, the upper displacement rod assembly and the lower displacement rod assembly are equidistantly arranged at the inner side of the outer ring of the reinforcement ring, the pull rod is arranged at the inner side of the outer ring of the reinforcement ring and is positioned at the connecting plate, the inner guide rod is welded on the middle surface of the inner ring between the two reinforcement rings, and the side part of the inner guide rod is tangent to the inner ring surface.

8. The open type load box structure according to claim 7, wherein at least two rib plates are fixed on the outer side of the conical body, a plurality of holes are formed in the rib plates, and the outer sides of the rib plates are welded with the reinforcing ring.

9. The open loadbox structure of claim 7, wherein the lower displacement rod assembly is provided with a pre-opening cut-out that is flush with the open face of the loading unit.

10. The open loadbox structure of claim 7, wherein the cone is pre-cast with upper and lower concrete blocks that are not less strong than the body concrete.