CN212641535U - Satisfy inside and outside net thick liquid load box of jar - Google Patents
Satisfy inside and outside net thick liquid load box of jar Download PDFInfo
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- CN212641535U CN212641535U CN202020684334.6U CN202020684334U CN212641535U CN 212641535 U CN212641535 U CN 212641535U CN 202020684334 U CN202020684334 U CN 202020684334U CN 212641535 U CN212641535 U CN 212641535U
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Abstract
The utility model relates to a load box that uses among the foundation pile self-balancing static test, especially a satisfy the inside and outside clean thick liquid load box of jar. A load box meeting the requirements of internal and external cylinder clean slurry comprises an upper plate, a lower plate and a hydraulic device, wherein the hydraulic device comprises a liquid inlet pipe, a liquid outlet pipe, a cylinder body and a piston, a cavity is formed in the cylinder body, and an opening of the cavity faces downwards; the piston is in clearance fit with the cavity, a liquid loading open caisson is arranged on the piston, the liquid inlet pipe penetrates through the upper surface of the cylinder body to be inserted, and the liquid outlet pipe penetrates through the upper surface of the cylinder body to be inserted into the liquid loading open caisson. The utility model has the advantages of as follows: 1. the quality of the slurry is ensured, and the filling rate is improved. 2. The loading of slurry inside and outside the cylinder can be met. 3. The engineering pile is ensured to meet the design requirement of uplift resistance. 4. The strength and the integrity of the pile body of the foundation pile are ensured. 5. Ensuring that the slurry injected outside the cylinder is high-purity pure slurry. 6. The upper plate structure is convenient for laying and connecting pipelines of each load box. 7. A plurality of cylinder bodies are connected in series, and the integral liquid adding, liquid discharging and grouting of the load box can be realized.
Description
Technical Field
The utility model relates to a load box that uses among the foundation pile self-balancing static test, especially a satisfy the inside and outside clean thick liquid load box of jar.
Background
In the foundation pile self-balancing static test, the load box is generally only provided with one liquid injection pipe, so that after the test, liquid which is never solidified is filled between a cylinder body and a piston of the load box body, and after the foundation pile self-balancing static test, the pile generates liquid in the load box cylinder and is extruded out to generate displacement under the vertical compression state of the engineering.
Although the existing load box can realize liquid drainage and grouting through two pipes, the two pipes are at the same elevation of the side edge of the upper end of the cylinder body, so that during grouting, the liquid above the elevation of the liquid outlet can only be extruded and discharged, and the liquid below the elevation of the liquid outlet cannot be discharged completely, so that the injected slurry is diluted by the retained liquid, the concentration of the slurry is reduced, the final setting strength of the slurry is seriously reduced, and the reinforcing requirement cannot be met.
Disclosure of Invention
The utility model aims at solving the problem that exists among the prior art, provide one kind and guarantee the slurry quality when realizing the slip casting, improve the inside and outside clear paste load box of satisfying cylinder of sufficient rate.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a load box meeting the requirements of internal and external cylinder clean slurry comprises an upper plate, a lower plate and a hydraulic device, wherein the hydraulic device comprises a liquid inlet pipe, a liquid outlet pipe, a cylinder body and a piston, a cavity is arranged in the cylinder body, the opening of the cavity faces downwards, and the axial direction of the cavity is consistent with the axial direction of the cylinder body; the piston is in clearance fit with the cavity, a liquid loading open caisson is arranged on the piston, the liquid inlet pipe penetrates through the upper surface of the cylinder body to be inserted, the insertion end is positioned above the piston, the liquid outlet pipe penetrates through the upper surface of the cylinder body to be inserted into the liquid loading open caisson, and the bottom of the liquid outlet pipe is close to the bottom of the liquid loading open caisson; a pressure relief valve is arranged on the side wall of the cylinder body and used for relieving pressure when the load exceeds the maximum pressure value of the cylinder body after the piston moves downwards; the hydraulic devices are in plurality and are connected with the adjacent liquid inlet pipe and the liquid outlet pipe in series through connecting pipes; the lower plate is fixed with the piston, and the upper plate and the lower plate are movably connected.
Preferably, the pressure release valve comprises a pressure release channel, a solid pressure limiting sheet and a hollow screw, an opening of the pressure release channel is formed in the inner wall of the cylinder body, the solid pressure limiting sheet is arranged between the pressure release channel and the hollow screw, and an opening of the hollow screw is located in the outer wall of the cylinder body.
The anti-pulling lock structure is used for limiting the piston in the cylinder body when the piston moves downwards and comprises an anti-pulling lock head and an anti-pulling lock groove which are matched with each other, the anti-pulling lock head is arranged in a through hole in the side wall of the cylinder body, and the head end of the anti-pulling lock head faces the side wall of the piston; the anti-pulling lock groove is arranged on the side wall of the upper part of the piston, and the opening end of the anti-pulling lock groove faces the inner wall of the cylinder body.
Preferably, the anti-pulling lock head comprises a lock head, a spring and a base which are connected in sequence, the lock head is limited in the through hole by a piston, the base is fixed with the cylinder body, and the spring is compressed between the lock head and the base.
Preferably, the anti-pulling lock structures are at least two and are oppositely arranged.
Preferably, a sealing groove is formed in the side wall of the piston and used for placing the sealing ring, and the sealing groove is located above the anti-pulling locking groove.
The device comprises a cylinder, a pressure limiting explosive grouting device and a reversing pipe, wherein the pressure limiting explosive grouting device comprises two vertical grouting pipes outside the cylinder and a reversing pipe, the two vertical grouting pipes are used for grouting outside the cylinder and protecting sleeves for lower displacement wires, the lower displacement wires are fixed in the vertical grouting pipes outside the cylinder, two ends of the reversing pipe are respectively inserted into the vertical grouting pipes outside the cylinder, and the horizontal part of the reversing pipe is fixed with a lower plate.
Preferably, a pressure relief valve is arranged in the reversing pipe and comprises a pressure relief channel, a solid pressure limiting sheet and a hollow screw, the pressure relief channel is communicated with the reversing pipe, the solid pressure limiting sheet is arranged between the pressure relief channel and the hollow screw, the pressure limiting value of the solid pressure limiting sheet is smaller than the pressure bearing value of the reversing pipe, and an opening of the hollow screw is positioned on the pipe wall of the reversing pipe.
Preferably, the upper plate is of a rigid lattice structure.
Preferably, an H-shaped waterproof connecting guard plate is installed between the upper plate and the lower plate, a rigid side plate of the upper plate is inserted into an upper portion thereof and fixed, and a rigid side plate of the lower plate is inserted into a lower portion thereof.
Preferably, the H-shaped waterproof connecting guard plate is made of a flexible waterproof material.
Preferably, the depth of the effusion open caisson is greater than the theoretical value of the displacement of the piston when the self-balancing static load test pile test is met.
Compared with the prior art, the utility model has the advantages of as follows:
1. the design hydrops open caisson has ensured the preceding cavity in the cylinder body of slip casting for the grout body of cylinder body is high-purity clean thick liquid, has guaranteed the slurry quality, has improved the filling rate.
2. The pressure release valve is additionally arranged on the cylinder body, so that the loading of slurry inside and outside the cylinder can be met.
3. The anti-pulling lock structure not only ensures that the piston is limited in the cylinder body during movement, but also effectively transfers the anti-pulling force to the lower reinforcement cage through the anti-pulling lock when the upper reinforcement cage of the load box is subjected to upward pulling force, thereby ensuring that the engineering pile meets the anti-pulling design requirements after the self-balancing static load test pile of the foundation pile.
4. The pressure-limiting explosive grouting device is arranged to fill gaps among the cylinder bodies, so that the strength and integrity of the pile body of the foundation pile are guaranteed, and the upper load of the load box is effectively transmitted to the lower pile body of the load box.
5. The H-shaped waterproof connecting guard plate enables a periphery of the side of the whole load box to be sealed, so that after self-balancing detection of the foundation pile is achieved, displacement caused by loading of a piston in a cylinder body in the load box is avoided, underground water around the pile permeates the outside of the wrapping cylinder, and high-purity clean slurry is poured into slurry outside the cylinder.
6. The upper plate of the load box adopts a rigid lattice structure to replace a steel plate, so that pipelines for connecting the load boxes can be laid conveniently; after the concrete is poured, the lattice components and the concrete are combined to form the high-strength stiff concrete slab.
7. A plurality of cylinder bodies are connected in series through connecting pipes at the tops of the cylinder bodies, and the whole liquid feeding, liquid discharging and grouting of the load box can be realized.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic view of a portion of the structure of FIG. 1;
FIG. 3 is a schematic diagram of the hydraulic apparatus of FIG. 1;
FIG. 4 is a schematic structural diagram of the pressure relief valve in FIG. 3;
FIG. 5 is a schematic view of the anti-pulling lock head shown in FIG. 3;
FIG. 6 is a schematic structural view of the pressure-limiting explosive grouting device in FIG. 1;
FIG. 7 is a schematic diagram of the upper plate structure of FIG. 1;
FIG. 8 is a schematic view of the structure of the lower plate of FIG. 1;
FIG. 9 is a schematic view of the hydraulic apparatus of FIG. 1 in a start-stop state;
in fig. 1, a hydraulic device; 2. an upper plate; 3. waterproof connecting guard plates; 4. a lower plate; 5. a connecting pipe; 6. a pressure-limiting explosive grouting device;
in FIG. 3, 7, a liquid inlet pipe; 8. a liquid outlet pipe; 9. a bolt is fixed above the bracket; 10. a lower fixing bolt; 11. a cylinder body; 12. a piston; 17. an anti-pulling lock head; 18. a pressure relief valve; 19. an anti-pulling lock groove; 20. a sealing groove and a sealing ring; 29. liquid loading open caisson;
in fig. 5, 26, the pressure relief channel; 27. a solid pressure limiting sheet; 28. a hollow screw;
in fig. 6, 23, a lock head; 24. a spring; 25. a base;
in fig. 7, 34, lower displacement wires; 35. the lower displacement wire sheath is also used as an external grouting vertical conduit; 36. a reversing tube; 18. a pressure relief valve;
in fig. 8, 30, the border and the lattice beam; 31. an upper rigid side panel;
in fig. 9, 32, bottom plate; 33. a lower rigid side panel.
Detailed Description
It should be noted that, in the following embodiments of the present invention, all the directional terms are described according to the drawings, and do not constitute a limitation of the present invention.
The present invention will be described in further detail with reference to the accompanying drawings 1-9: a load box meeting the requirements of internal and external cylinder clear paste is shown in figure 1-2 and comprises a hydraulic device 1, an upper plate 2, a waterproof connecting guard plate 3, a lower plate 4, a connecting pipe 5 and a pressure-limiting explosive grouting device 6; the hydraulic device 1 is arranged between the upper plate 2 and the lower plate 3, is provided with a plurality of hydraulic devices, and is connected in series through a connecting pipe 5; the upper plate 2 is of a rigid lattice structure, the waterproof connecting protection plate 3 is made of flexible waterproof materials and is H-shaped, the upper plate 2 and the lower plate 4 are movably connected, and the pressure-limiting explosive grouting device 6 is fixed on the lower plate 4.
As shown in fig. 3, the hydraulic device 1 includes a liquid inlet pipe 7, a liquid outlet pipe 8, a cylinder 11 and a piston 12, the top of the cylinder 11 is fixed with the upper plate 2 by an upper fixing bolt 9, the interior of the cylinder is a cavity, the opening of the cavity faces downward, and the axial direction of the cavity is consistent with the axial direction of the cylinder 11; one end of a piston 12 is inserted into the cavity and is in clearance fit with the cavity, the other end of the piston is fixed with a lower plate 4 through a lower fixing bolt 10, a liquid loading open caisson 29 is arranged on the piston, a liquid inlet pipe 7 penetrates through the upper surface of the cylinder and is inserted into the cylinder, an insertion end is positioned above the piston 12, a liquid outlet pipe 8 penetrates through the upper surface of the cylinder and penetrates into the liquid loading open caisson 29, the bottom of the liquid inlet pipe is close to the bottom of the liquid loading open caisson, the axial direction of the liquid loading open caisson 29 is consistent with the axial direction of the piston, and the depth of the liquid loading open caisson; a pressure relief valve 18 is arranged on the side wall of the cylinder body, and when the pressure value in the cylinder body exceeds the pressure bearing value of the cylinder body, slurry breaks the pressure relief valve 18, so that the requirement of grouting outside the cylinder is met; because there is the gap between cylinder body 11 and the piston 12, in order to reach better sealed effect, set up seal groove and sealing washer 20 on piston 12, seal groove and sealing washer 20 are in the top of anti-pulling lock structure.
As shown in fig. 4, the relief valve 18 includes a relief passage 26, a solid pressure-limiting plate 27 and a hollow screw 28, an opening of the relief passage 26 is opened on an inner wall of the cylinder 11, the solid pressure-limiting plate 27 is disposed between the relief passage and the hollow screw, an opening of the hollow screw 28 is located on an outer wall of the cylinder, when grouting makes a pressure value in the cylinder exceed a maximum pressure value of the cylinder 11, the slurry presses the solid pressure-limiting plate 27 by the relief passage 26, so that the solid pressure-limiting plate 27 is broken and flows out from a center hole of the hollow screw 28.
In order to ensure that the piston 12 is limited in the cylinder 11 when moving and simultaneously to ensure that the load box effectively transmits the uplift force to the lower steel reinforcement cage when the upper steel reinforcement cage bears the uplift force, thereby ensuring that the engineering pile meets the design requirement of uplift after the foundation pile self-balancing static load test pile, an uplift lock structure is additionally arranged between the piston and the cylinder, as shown in fig. 3 and 5, the uplift lock device comprises an uplift lock head 17 and an uplift lock groove 19 which are matched with each other, the uplift lock head 17 is arranged in a through hole formed in the side wall at the lower part of the cylinder 11 and comprises a lock head 23, a spring 24 and a base 25 which are sequentially connected, the head end of the lock head 23 adopts an arc shape and faces the outer wall of the piston 12, the spring 24 is compressed between the lock head 23 and the base 25, the base 25 is fixed with the cylinder 11, the uplift lock groove 19 is formed in the side wall. When the piston 12 moves downwards to the position opposite to the anti-pulling lock head 17 and the anti-pulling lock groove 19, the lock head 23 is bounced into the anti-pulling lock groove 19 under the elastic force of the spring 24, so that the piston and the cylinder are locked and do not move mutually any more. In order to make the anti-pulling effect better, the anti-pulling lock structure is designed into two structures which are oppositely arranged in the two side walls of the cylinder body 11; of course, the number of the anti-pulling lock structures is not limited to two, and can be multiple, and the anti-pulling lock structures are generally designed according to anti-pulling requirements (assuming that the anti-pulling capacity of each anti-pulling lock is a, and the overall anti-pulling requirement is b, the number n is more than or equal to b/a).
In order to enable the reinforced load box and the engineering pile to form a continuous whole, ensure the strength and integrity of a pile body of the foundation pile, effectively transmit the upper load of the load box to the lower pile body of the load box, and increase a pressure-limiting explosive grouting device, as shown in fig. 6, the pressure-limiting explosive grouting device 6 comprises a lower displacement wire 34, a lower displacement wire sheath and outer grouting vertical conduit 35, a reversing conduit 36 and a pressure release valve 18, wherein the lower displacement wire 34 is fixed in the lower displacement wire sheath and outer grouting vertical conduit 35; the two lower displacement wire sheath and outer grouting vertical guide pipes 35 are respectively arranged at two ends of the reversing pipe 36, and the out-of-cylinder grouting vertical pipe and the sheath pipe of the lower displacement wire are integrated into a multifunctional pipe, so that the lower displacement wire 34 can be prevented from being held by concrete, and meanwhile, the multifunctional pipe can be used as the out-of-cylinder grouting vertical guide pipe; two ends of the reversing pipe 36 are respectively inserted into the lower displacement wire sheath and outer grouting vertical conduit 35, and the horizontal part of the reversing pipe is welded and fixed with the lower plate 4, so that the functions of drainage and direction changing are achieved; meanwhile, the free ends of the lower displacement wire sheath, the outer grouting vertical conduit 35 and the reversing pipe 36 extend out of the upper plate 2, and the length L of the vertical part of the reversing pipe 36 is larger than the displacement value of the piston 12 under the test termination condition of the self-balancing static load test pile; pressure relief valve18 is arranged in a reversing tube 36 and comprises a pressure relief channel 26, a solid pressure limiting sheet 27 and a hollow screw 28, wherein the solid pressure limiting sheet 27 is arranged between the pressure relief channel 26 and the hollow screw 28 and limits a pressure value PaLess than the bearing capacity P of the reversing tube 36bWhen the loaded pressure value is in Pa、PbIn the middle, the slurry breaks through the solid pressure limiting plate 27, the hollow screw 28 releases the pressure, and the slurry fills the gap between the lower plate 4 and the waterproof connecting protection plate 3.
As shown in fig. 7, the upper plate 2 has a rigid lattice structure including a frame and lattice beam 30 and an upper rigid side plate 31, the frame and lattice beam 30 being an upper surface of the upper plate, and the upper rigid side plate 31 being provided around the frame and lattice beam 30. As shown in fig. 9, the lower plate 4 includes a bottom plate 32 and a lower rigid side plate 33, the bottom plate 32 is a rigid plate and has a hollow center, i.e. the bottom plate 32 is ring-shaped, the lower rigid side plate 33 is disposed around the bottom plate 32, the upper plate 2 and the lower plate 4 are connected together by a waterproof connecting guard plate 3, the waterproof connecting guard plate 3 is H-shaped and made of flexible material, and has a plurality of vent holes so that the upper rigid side plate 31 and the lower rigid side plate 33 can be inserted into the vent holes, the upper portion of the H-shape encloses and fixes the upper rigid side plate 31 of the upper plate 2, and the lower portion of the H-shape encloses the. When the load tank is filled with liquid and pressurized, the lower rigid side plate 33 of the lower plate 4 is gradually withdrawn with the piston 12 of the hydraulic device 1.
As shown in fig. 8-9, water is injected into the cavity through the liquid inlet pipe 7, the piston 12 moves downward relative to the cylinder 11 with the increase of the water amount, and when the anti-pulling lock groove 19 moves to be opposite to the anti-pulling lock head 17, the anti-pulling lock head 17 pops up to lock the piston 12 and the cylinder 11, so that the relative movement does not occur any more.
The implementation steps are as follows:
liquid injection and pressurization: when liquid injection and pressurization are carried out, the liquid outlet pipe 8 is sealed and injected from the liquid inlet pipe 7;
1. when the liquid is not filled, the piston is at the initial position, and the pressure value P1= P2= P3= P4, as shown in a diagram in FIG. 9;
2. liquid injection and pressurization are started, injection is carried out from the liquid inlet pipe 7, and the pressure value P1 is more than P2 is more than P3 is more than P4;
3. the liquid injection and pressurization are continued, when the anti-pulling lock groove 19 on the piston 12 reaches the position of the anti-pulling lock head 17, the anti-pulling lock head 17 is ejected, the dead lock piston can not move any more, and when the end condition is reached, the pressure value P1= P2= P3= P4, as shown in a b diagram in FIG. 9;
4. when the liquid injection and pressurization are continuously carried out, the piston gradually displaces along with the liquid injection, and the lower rigid side plate 33 of the lower plate 4 also slides in the H-shaped lower groove of the waterproof connecting protection plate 3;
(II) inflation and drainage: after the liquid injection is finished, the inflation and liquid drainage are started, and when the inflation and liquid drainage are carried out, the liquid inlet pipe 7 and the liquid outlet pipe 8 are not closed;
5. and (3) starting inflation and drainage: gas is injected from the liquid inlet pipe 7, the gas is filled into the cylinder body 11 from top to bottom, the extrusion liquid is discharged from the liquid outlet pipe 8, and the pressure value P1 is more than P2 is more than P3 is more than P4;
6. continuing to inflate until the liquid outlet pipe 8 does not discharge liquid any more, indicating that the liquid in the cylinder body is drained, stopping inflating, and stopping inflating until a pressure value P1= P2= P3= P4;
(III) grouting: when the liquid outlet pipe 8 does not discharge liquid any more, grouting is started;
7. and (3) starting grouting: injecting from the liquid inlet pipe 7, wherein the pressure value is P1 > P2 > P3 > P4;
8. grouting is continued until the slurry overflows from the liquid outlet pipe, and the grouting is stopped until the pressure value is P1= P2= P3= P4;
(IV) grouting in pressure-limiting explosive grouting device
9. After closing the lower displacement wire sheath at one end and the outer grouting vertical conduit, continuously grouting until slurry overflows from the conduit at the other side, and sampling;
10. after sampling, the overflow end is closed, and then the slurry is injected into the pressure relief valve from the inlet end at high pressure until the pressure relief valve is detonated, so that the slurry is forced to naturally flow to and fill gaps at any phase.
In this example, water was used as the loading liquid, and the affinity to the slurry was better and the cost was lower than oil.
The above embodiment is only a preferred embodiment of the present invention, and does not limit the present invention. The anti-pulling lock device can be arranged in any load box structure utilizing the principle of a jack, the pressure-limiting and explosive grouting device and the anti-pulling lock device can be arranged in the same implementation mode at the same time, and can also be arranged in different implementation modes separately, namely, the pressure-limiting and explosive grouting device is suitable for any load box structure. Any extension, deformation and the like of the ordinary skilled in the art without departing from the working principle of the present invention shall be included in the protection scope of the present invention.
Claims (12)
1. The utility model provides a satisfy inside and outside net thick liquid load box of jar, includes upper plate, hypoplastron and hydraulic means, its characterized in that: the hydraulic device comprises a liquid inlet pipe, a liquid outlet pipe, a cylinder body and a piston, wherein a cavity is arranged in the cylinder body, the opening of the cavity faces downwards, and the axial direction of the cavity is consistent with the axial direction of the cylinder body; the piston is in clearance fit with the cavity, a liquid loading open caisson is arranged on the piston, the liquid inlet pipe penetrates through the upper surface of the cylinder body to be inserted, the insertion end is positioned above the piston, the liquid outlet pipe penetrates through the upper surface of the cylinder body to be inserted into the liquid loading open caisson, and the bottom of the liquid outlet pipe is close to the bottom of the liquid loading open caisson; a pressure relief valve is arranged on the side wall of the cylinder body and used for relieving pressure when the load exceeds the maximum pressure value of the cylinder body after the piston moves downwards; the hydraulic devices are in plurality and are connected with the adjacent liquid inlet pipe and the liquid outlet pipe in series through connecting pipes; the lower plate is fixed with the piston, and the upper plate and the lower plate are movably connected.
2. The inside and outside cylinder headbox for meeting the in-cylinder and out-of-cylinder headbox of claim 1, further comprising: the pressure relief valve comprises a pressure relief channel, a solid pressure limiting sheet and a hollow screw, an opening of the pressure relief channel is formed in the inner wall of the cylinder body, the solid pressure limiting sheet is arranged between the pressure relief channel and the hollow screw, and an opening of the hollow screw is located in the outer wall of the cylinder body.
3. The inside and outside cylinder headbox for meeting the in-cylinder and out-of-cylinder headbox of claim 1, further comprising: the piston is limited in the cylinder body when moving downwards, and comprises an anti-pulling lock head and an anti-pulling lock groove which are matched with each other, wherein the anti-pulling lock head is arranged in a through hole on the side wall of the cylinder body, and the head end of the anti-pulling lock head faces the side wall of the piston; the anti-pulling lock groove is arranged on the side wall of the upper part of the piston, and the opening end of the anti-pulling lock groove faces the inner wall of the cylinder body.
4. The inside and outside cylinder headbox of claim 3, characterized by: the anti-pulling lock head comprises a lock head, a spring and a base which are connected in sequence, the lock head is limited in the through hole by a piston, the base is fixed with the cylinder body, and the spring is compressed between the lock head and the base.
5. The inside and outside cylinder headbox according to claim 3 or 4, characterized by: the anti-pulling lock structure is at least two and is arranged oppositely.
6. The inside and outside cylinder headbox of claim 3, characterized by: and a sealing groove is formed in the side wall of the piston and used for placing a sealing ring, and the sealing groove is positioned above the anti-pulling locking groove.
7. The inside and outside cylinder headbox for meeting the in-cylinder and out-of-cylinder headbox of claim 1, further comprising: the device comprises a cylinder, a vertical grouting pipe and a reversing pipe, wherein the vertical grouting pipe is arranged outside the cylinder, the vertical grouting pipe is used for grouting outside the cylinder and protecting a lower displacement wire, the lower displacement wire is fixed in the vertical grouting pipe outside the cylinder, two ends of the reversing pipe are respectively inserted into the vertical grouting pipe outside the cylinder, and the horizontal part of the reversing pipe is fixed with a lower plate.
8. The inside and outside cylinder headbox of claim 7, characterized by: the reversing pipe is internally provided with a pressure relief valve, the pressure relief valve comprises a pressure relief channel, a solid pressure limiting sheet and a hollow screw, the pressure relief channel is communicated with the reversing pipe, the solid pressure limiting sheet is arranged between the pressure relief channel and the hollow screw, the pressure limiting value of the solid pressure limiting sheet is smaller than the pressure bearing value of the reversing pipe, and the opening of the hollow screw is positioned on the pipe wall of the reversing pipe.
9. The inside and outside cylinder headbox for meeting the in-cylinder and out-of-cylinder headbox of claim 1, further comprising: the upper plate adopts a rigid lattice structure.
10. The inside and outside cylinder headbox for meeting the in-cylinder and out-of-cylinder headbox of claim 1, further comprising: an H-shaped waterproof connecting guard plate is arranged between the upper plate and the lower plate, a rigid side plate of the upper plate is inserted into the upper part of the upper plate and fixed, and a rigid side plate of the lower plate is inserted into the lower part of the lower plate.
11. The inside and outside cylinder headbox for satisfying the requirements of claim 10, wherein: the H-shaped waterproof connecting guard plate is made of flexible waterproof materials.
12. The inside and outside cylinder headbox for meeting the in-cylinder and out-of-cylinder headbox of claim 1, further comprising: the depth of the accumulated liquid open caisson is larger than the theoretical value of the displacement of the piston when the self-balancing static load test pile test is met.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020684334.6U CN212641535U (en) | 2020-04-29 | 2020-04-29 | Satisfy inside and outside net thick liquid load box of jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020684334.6U CN212641535U (en) | 2020-04-29 | 2020-04-29 | Satisfy inside and outside net thick liquid load box of jar |
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| Publication Number | Publication Date |
|---|---|
| CN212641535U true CN212641535U (en) | 2021-03-02 |
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|---|---|---|---|
| CN202020684334.6U Active CN212641535U (en) | 2020-04-29 | 2020-04-29 | Satisfy inside and outside net thick liquid load box of jar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364531A (en) * | 2020-04-29 | 2020-07-03 | 江西联保工程咨询有限公司 | Load box capable of meeting requirements of internal (external) net slurry of cylinder |
-
2020
- 2020-04-29 CN CN202020684334.6U patent/CN212641535U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364531A (en) * | 2020-04-29 | 2020-07-03 | 江西联保工程咨询有限公司 | Load box capable of meeting requirements of internal (external) net slurry of cylinder |
| CN111364531B (en) * | 2020-04-29 | 2024-03-29 | 江西鸿利精密制造有限公司 | Meet in-cylinder and out-cylinder net pulp load box |
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Effective date of registration: 20211206 Address after: 330000 plant 2, No. 918, Huohuo Liu Road, Nanchang high tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee after: Jiangxi Hongli Precision Manufacturing Co.,Ltd. Patentee after: Jiangxi Lianbao Engineering Consulting Co., Ltd Address before: 330000 Baishuihu Lake Management Office, Nanchang Economic and Technological Development Zone, Nanchang City, Jiangxi Province Patentee before: JIANGXI LIANBAO ENGINEERING CONSULTING Co.,Ltd. |