CN115958690B - Tensioning assembly and production process of pretensioned pipe pile - Google Patents
Tensioning assembly and production process of pretensioned pipe pile Download PDFInfo
- Publication number
- CN115958690B CN115958690B CN202310105742.XA CN202310105742A CN115958690B CN 115958690 B CN115958690 B CN 115958690B CN 202310105742 A CN202310105742 A CN 202310105742A CN 115958690 B CN115958690 B CN 115958690B
- Authority
- CN
- China
- Prior art keywords
- plate
- tensioning
- hole
- pipe
- groove
- Prior art date
- 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.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000010521 absorption reaction Methods 0.000 claims abstract description 22
- 239000002918 waste heat Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000004567 concrete Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The application relates to a tensioning assembly and a pretensioned pipe pile production process, and relates to the technical field of pipe piles. The tensioning assembly comprises a tensioning plate, a tensioning screw connected with the tensioning plate, a baffle plate for the tensioning plate to pass through and a tensioning nut in threaded connection with the tensioning screw, a guide sleeve for attaching the inner wall of the pipe die is sleeved on the outer side of the tensioning plate in a rotating mode, a through hole for the U-shaped heat absorption pipe to pass through is formed in the tensioning plate, a cover plate is connected to the inner side of one end of the guide sleeve, a movable groove for the cover plate to clamp in and rotate is formed in the tensioning plate, the movable groove is communicated with the through hole, and a connecting hole for the bolt to pass through is formed in the cover plate in a penetrating mode. Besides the stretching action of the foundation, the stretching assembly can be also suitable for a waste heat utilization process, fully absorbs and utilizes the heat stored in the tubular pile by utilizing a heat exchange principle, reduces energy consumption and has significance of energy conservation and environmental protection.
Description
Technical Field
The application relates to the field of pipe piles, in particular to a tensioning assembly and a pretensioned pipe pile production process.
Background
The tubular pile is a prefabricated engineering pile and is used for pile foundation engineering to improve the bearing capacity of the foundation. The pretensioned prestressed concrete pipe pile is a hollow cylinder body slender concrete prefabricated part manufactured by pretensioned prestressing technology and centrifugal forming method. The pretensioning method is a method of pretensioning steel bars in the production process of the pipe pile, pouring concrete after the steel bars are tensioned, and loosening the two ends of the steel bars when the concrete reaches the specified strength, so that the tensile capacity of the concrete pipe pile when bearing loads can be improved, and the cracking phenomenon is reduced.
The Chinese patent with publication number of CN103753698A discloses a novel tensioning assembly structure for producing a prestressed pipe pile, which consists of a head plate, a clamp, a pipe die, a tensioning plate, a baffle plate, a tensioning screw, a tensioning nut, a tail plate clamp and a tensioning screw assembly, wherein the head plate is fixed on the tensioning plate at one end of the tensioning screw assembly through the clamp, the baffle plate at the other end of the tensioning screw assembly is fixed at the lower part of the pipe die through a bolt, the tail plate is arranged on the tail plate clamp, and the tail plate clamp is fixed at the tail end of the pipe die through the bolt; the upper and lower parts of the pipe die are clamped by bolts, and the tensioning screw rod assembly is connected with the tensioning machine to realize tension.
The prestress tensioning process of the pretensioned pipe pile is as follows: firstly placing a reinforcement cage in a lower die, then respectively connecting two end plates to two ends of the reinforcement cage, then connecting a tensioning plate with the end plates, then sleeving a baffle, sleeving a tensioning nut on a tensioning screw, and finally tensioning the tensioning plate by a tensioning machine, and tightening the tensioning nut. And (5) pouring concrete, closing the die, centrifugally forming, steam curing and demolding in sequence after tensioning is completed, so as to obtain the pretensioned pipe pile.
In the production process, a large amount of waste heat is still stored in the concrete after the steam curing is finished, and the heat is naturally emitted to the air after demolding, so that energy consumption is caused.
Disclosure of Invention
In order to reduce the energy consumption of tubular pile production, the application provides a tensioning assembly and a pretensioned tubular pile production process.
In a first aspect, the present application provides a tensioning assembly that adopts the following technical scheme:
the utility model provides a stretch-draw subassembly, includes stretch-draw board, the stretch-draw screw rod of being connected with the stretch-draw board, the baffle that supplies the stretch-draw board to pass and the stretch-draw nut of being connected with stretch-draw screw rod threaded connection, the stretch-draw board outside rotates the sleeve that has been used for laminating the pipe die inner wall, the stretch-draw board is provided with the through-hole that is used for supplying U type heat absorption pipe to pass, guide sleeve one end inboard is connected with the apron, the stretch-draw board is provided with and supplies the apron card to go into and pivoted movable groove, movable groove and through-hole intercommunication, the apron runs through and is provided with the connecting hole that supplies the bolt to pass.
By adopting the technical scheme, the tensioning assembly can be adapted to the waste heat utilization process besides the tensioning function of the foundation.
After the steam curing of the pipe pile is finished, a plurality of bolts close to the cover plate are unscrewed, the guide sleeve and the tensioning plate can rotate relatively, the through holes are opened after the guide sleeve is rotated, the U-shaped heat absorption pipe connected with the heat exchanger stretches into the pipe pile, the heat stored in the pipe pile is fully absorbed and utilized by utilizing the heat exchange principle, the energy consumption is reduced, and the pipe pile has energy-saving and environment-friendly significance.
The stretching assembly plays a role in delaying heat loss in the waste heat utilization process, so that the inside of the pipe pile is still in a closed state, cold water flowing in the heat absorption pipe absorbs heat and cools the pipe pile, and the cracking condition of the pipe pile, which is easy to occur due to too fast cooling, is reduced.
Optionally, apron one side is provided with the shutoff board, the shutoff board covers in the part that the relative end plate of movable groove exposes, the thickness of shutoff board is less than the degree of depth of movable groove, shutoff board one side is connected with the action bars, the stretch-draw board is provided with the arc hole that supplies the action bars to pass, movable groove one side is provided with the groove of stepping down that supplies the shutoff board to move in.
Through adopting above-mentioned technical scheme, watering concrete in-process, the shutoff board can block concrete and get into the movable groove, avoids the waste heat to utilize in-process because of the movable groove jam leads to the unable pivoted trouble of apron.
When the cover plate needs to be rotated, the operating rod is pulled, so that the plugging plate moves to the bottom wall from the opening of the movable groove, then the operating rod is pulled along the arc-shaped hole, the plugging plate moves into the yielding groove, and at the moment, the cover plate can rotate to be staggered with the through hole.
Optionally, a rib plate is arranged on one side of the back of the tensioning plate away from the plugging plate, the rib plate is fixedly connected to the inner side wall of the guide sleeve, and the operating rod is provided with a clamping groove for clamping the end part of the rib plate;
when the rib plate is abutted against the inner wall of one end of the clamping groove far away from the plugging plate, the plugging plate is dislocated relative to the abdicating groove; when the rib plate is abutted to the inner wall of one end of the clamping groove, which is close to the plugging plate, the plugging plate can be shifted into the abdication groove.
By adopting the technical scheme, the rib plates have multiple functions, namely the rib plates serve as reinforcing ribs to ensure the perpendicularity of the guide sleeve and the tensioning plate, further ensure the perpendicularity of the end plates relative to the tubular pile and prevent the end plates from tilting during tensioning; secondly, the guide sleeve is used as a stress point, so that the force is conveniently applied to the guide sleeve; thirdly, the rib plates limit the position of the operating rod, so that the plugging plate can be conveniently moved in place.
Optionally, the operating rod is provided with a positioning screw in threaded connection with the rib plate, and the rib plate is abutted to the inner wall of one end of the clamping groove far away from the plugging plate when the positioning screw is connected with the rib plate.
By adopting the technical scheme, the rib plates and the operating rod can be relatively fixed, so that the trouble that concrete enters the movable groove due to unexpected movement of the plugging plate in the centrifugal forming process is avoided.
Optionally, a plug is arranged at the through hole, and semicircular grooves for the U-shaped heat absorption tube to pass through are arranged on two sides of the plug.
By adopting the technical scheme, the heat loss in the pipe pile is reduced.
Optionally, the end cap is connected with the inserted bar towards one side of apron, one side of apron towards the through-hole is provided with supplies inserted bar male jack, the inserted bar outside is provided with the sand grip.
By adopting the technical scheme, the plug is prevented from being accidentally separated from the through hole in the centrifugal forming process.
Optionally, the jack inner wall is provided with the recess that supplies the sand grip card to go into.
By adopting the technical scheme, the tightness of connection between the plug and the plugging plate is improved.
In a second aspect, the present application provides a pretensioned pipe pile production process, which adopts the following technical scheme:
a pretensioned pipe pile production process comprises the following steps: s1 prestress tensioning, S2 concrete pouring, S3 centrifugal forming, S4 steam curing and S5 waste heat utilization;
the specific process of S5 waste heat utilization is as follows: the tensioning nut is unscrewed firstly, the baffle plate is taken down, a plurality of bolts which are connected between the tensioning plate and the end plate and are close to the cover plate are unscrewed, the guide sleeve is rotated, the cover plate and the through holes are staggered, the U-shaped heat absorption pipe penetrates through the through holes and stretches into the pipe pile, finally cold water is introduced after one end of the U-shaped heat absorption pipe is connected with the heat exchanger, and demoulding is carried out after cooling is completed.
By adopting the technical scheme, the heat reserved after steam curing of the tubular pile is fully utilized, and the energy-saving and consumption-reducing environment-friendly significance is achieved.
Optionally, the S5 waste heat utilization is performed in a semi-closed environment.
Optionally, in the S5 waste heat utilization, the through hole is plugged by a plug after the U-shaped heat absorption tube stretches into the tubular pile.
By adopting the technical scheme, the heat loss in the pipe pile is reduced.
In summary, the present application includes at least one of the following beneficial technical effects:
1. besides the stretching action of the foundation, the stretching assembly can also be adapted to the waste heat utilization process, the through hole is opened after the steam curing is completed, the U-shaped heat absorption pipe connected with the heat exchanger extends into the pipe pile, the heat stored in the pipe pile is fully absorbed and utilized by utilizing the heat exchange principle, the energy consumption is reduced, and the energy-saving and environment-friendly significance is realized;
2. through the arrangement of the guide sleeve and the rib plates, the perpendicularity of the end plate relative to the tubular pile is guaranteed, and the end plate is prevented from tilting during tensioning.
Drawings
FIG. 1 is a schematic structural view of a tensioning assembly of an embodiment of the present application;
FIG. 2 is a schematic illustration of the structure of the tensioning assembly of the present embodiment after removal of the baffle and tensioning nut;
FIG. 3 is a schematic structural view of a tensioning assembly of an embodiment of the present application for showing a movable slot;
FIG. 4 is a schematic view of the structure of a tension plate and guide sleeve according to an embodiment of the present application;
FIG. 5 is a schematic view of the structure of a guide sleeve and a plugging plate according to an embodiment of the present application;
FIG. 6 is an enlarged schematic view of area A of FIG. 5;
FIG. 7 is a schematic structural view of a closure plate according to an embodiment of the present application;
FIG. 8 is a schematic structural view of a plug according to an embodiment of the present application;
fig. 9 is a schematic structural view of a tensioning assembly according to an embodiment of the present application in a waste heat utilization state.
Reference numerals illustrate: 1. a stretching plate; 11. a through hole; 12. a movable groove; 13. an arc-shaped hole; 14. a relief groove; 2. stretching the screw rod; 3. a baffle; 4. tensioning the nut; 5. a guide sleeve; 51. a cover plate; 511. a jack; 512. a groove; 513. a connection hole; 52. rib plates; 6. a plugging plate; 7. an operation lever; 71. a clamping groove; 8. a set screw; 9. a plug; 91. a semicircular groove; 92. a rod; 93. a convex strip; 10. u-shaped heat absorbing pipe.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-9.
The embodiment of the application discloses a tensioning assembly and a pretensioned pipe pile production process.
Referring to fig. 1, a tension assembly includes a tension plate 1, a tension screw 2, a baffle 3, a tension nut 4, and a guide sleeve 5.
The stretching plate 1 is in a circular plate shape, and a plurality of through holes are formed in the outer side of the stretching plate 1 at equal intervals in the circumferential direction, and correspond to screw holes of the tubular pile end plates. When stretching, the stretching plate 1 is attached to the end plate, and then bolts penetrate through the perforations one by one and are screwed into the screw holes, so that the stretching plate 1 and the end plate are relatively fixed.
The tensioning screw rod 2 is fixedly connected to the middle part of the tensioning plate 1, the baffle plate 3 is attached to the end face of the pipe die, the middle part is provided for the tensioning screw rod 2 to pass through, and the tensioning nut 4 is in threaded connection with one end of the tensioning screw rod 2, which passes through the baffle plate 3. The pipe die is a die for placing the reinforcement cage and the end plate, and comprises an upper die and a lower die.
The guide sleeve 5 is rotatably sleeved on the outer side of the tensioning plate 1, and the guide sleeve 5 and the tensioning plate 1 are arranged in a coplanar mode towards the end face of the end plate. The guide sleeve 5 is attached to the inner wall of the pipe die, so that the guide positioning function is realized, the inclination of the end plate during tensioning is prevented, and the perpendicularity of the end plate relative to the axial lead of the pipe pile is further ensured.
Referring to fig. 1, during tensioning, a tensioning plate 1 and an end plate are fixed through bolts, a baffle plate 3 is sleeved on a tensioning screw rod 2 and is attached to the end face of a pipe die, a tensioning nut 4 is screwed on the tensioning screw rod 2, and finally, the tensioning nut 4 is screwed after tensioning by a tensioning machine, so that pre-tensioning before irrigation is completed.
Referring to fig. 2 and 3, in order to enrich functions of the tensioning assembly, the tensioning assembly can be adapted to a waste heat utilization process after steam curing of the pipe pile, and the tensioning plate 1 is provided with a through hole 11 for the waste heat utilization device to pass through, wherein the through hole 11 is waist-shaped. The inner side of one end of the guide sleeve 5 is fixedly connected with a fan-shaped cover plate 51, the tensioning plate 1 is provided with a movable groove 12 for the cover plate 51 to be clamped into and rotate around the axial lead of the tensioning plate 1, the movable groove 12 is communicated with the through hole 11, and the cover plate 51 is provided with a connecting hole 513 for a bolt to pass through in a penetrating manner.
When stretching, the cover plate 51 rotates to be attached to an inner wall of the movable groove 12, at the moment, the connecting hole 513 is communicated with one of the through holes of the stretching plate 1, and the cover plate 51 covers the through hole 11, so that the guide sleeve 5 cannot rotate when pouring concrete, and the concrete cannot fly out from the through hole 11. When the waste heat is utilized, the cover plate 51 is rotated to be attached to the other inner wall of the movable groove 12, and at the moment, the cover plate 51 is staggered with the through hole 11, so that the waste heat utilization device can absorb and utilize the heat in the tubular pile after penetrating through the through hole 11.
Referring to fig. 3 and 4, in order to prevent concrete from entering the movable groove 12 during centrifugal molding, a blocking plate 6 is provided at one side of the cover plate 51, and the blocking plate 6 has a fan shape and an outer diameter larger than an inner diameter of the end plate, so that the blocking plate 6 covers an exposed portion of the movable groove 12 opposite to the end plate. The thickness of the plugging plate 6 is half of the depth of the movable groove 12, and one side of the bottom of the movable groove 12 far away from the cover plate 51 is communicated with a yielding groove 14 for the plugging plate 6 to move in. When the plugging plate 6 is positioned at the opening of the movable groove 12 and is level with the end surface of the tensioning plate 1, concrete can be prevented from entering the movable groove 12; when the plugging plate 6 is positioned at the bottom of the movable groove 12, the plugging plate 6 can be rotated into the yielding groove 14 around the axial lead of the tensioning plate 1, so that the cover plate 51 can be rotated to be misplaced with the through hole 11.
Referring to fig. 4 and 5, an operation rod 7 is fixedly connected to one side of the plugging plate 6, the tensioning plate 1 is provided with an arc hole 13 through which the operation rod 7 passes, and the operation rod 7 can rotate around the axial lead of the tensioning plate 1 along the arc hole 13. When the cover plate 51 needs to be rotated, the operating rod 7 is pulled, so that the plugging plate 6 moves to the bottom wall from the opening of the movable groove 12, then the operating rod 7 is pulled along the arc-shaped hole 13, so that the plugging plate 6 moves into the yielding groove 14, and at the moment, the cover plate 51 can be rotated to be misplaced with the through hole 11.
Referring to fig. 2 and 5, a rib plate 52 is attached to one side of the tension plate 1 facing away from the plugging plate 6, and the rib plate 52 is fixedly connected to the inner side wall of the guide sleeve 5. The operating rod 7 is penetrated with a positioning screw 8 in threaded connection with the rib plate 52, and the rib plate 52 is abutted against the inner wall of one end of the clamping groove 71 far away from the plugging plate 6 when the positioning screw 8 is connected with the rib plate 52. The blocking plate 6 at the opening of the movable groove 12 can be positioned by the positioning screw 8, so that the trouble that concrete enters the movable groove 12 due to unexpected movement of the blocking plate 6 in the centrifugal forming process is avoided.
Referring to fig. 5 and 6, the lever 7 is provided with a locking groove 71 into which the end of the rib plate 52 is locked, and the width of the locking groove 71 in the axial direction of the lever 7 is larger than the width of the end of the rib plate 52, so that the lever 7 can move slightly in the axial direction thereof when the end of the rib plate 52 is locked into the locking groove 71. When the rib plate 52 is abutted against the inner wall of one end of the clamping groove 71 far away from the plugging plate 6, the plugging plate 6 is dislocated relative to the abdicating groove 14, the plugging plate 6 is positioned at the opening of the movable groove 12, and at the moment, the positioning screw 8 can penetrate through the operating rod 7 and be screwed into the end part of the rib plate 52; when the rib plate 52 abuts against the inner wall of the clamping groove 71 near one end of the plugging plate 6, the plugging plate 6 can be rotated into the abdication groove 14.
Referring to fig. 5 and 7, the clamping groove 71 is provided near the opening of one side of the cover plate 51, so that the end of the rib plate 52 extends into the clamping groove 71. The inner wall of one side of the clamping groove 71 far away from the cover plate 51 can be used for the end part of the rib plate 52 to be attached, so that the rib plate 52 can be applied with force to drive the operation rod 7 and the plugging plate 6 to rotate together.
Referring to fig. 8 and 9, the waste heat utilization device comprises a U-shaped heat absorption tube 10, wherein the bent end of the U-shaped heat absorption tube 10 passes through the through hole 11 and extends into the tubular pile, and the two ends of the U-shaped heat absorption tube 10 outside the tubular pile are respectively connected with the heat exchanger and the water inlet tube. The heat inside the pipe pile is absorbed by the mode of inputting cold water, and the heat is fully utilized by the heat exchanger, so that the heat loss is reduced.
Referring to fig. 6 and 8, a rubber plug 9 is provided at the through hole 11, and semicircular grooves 91 for the U-shaped heat absorbing pipe 10 to pass through are provided at both sides of the plug 9. The plug 9 is integrally connected to a plug rod 92 on a side facing the cover plate 51, and a convex strip 93 is formed on the outer side of the plug rod 92. The cover plate 51 is provided with a jack 511 for inserting the insertion rod 92 toward one side of the through hole 11, and a groove 512 for clamping the convex strip 93 is formed in the inner wall of the jack 511. After the U-shaped heat absorption pipe 10 stretches into the pipe pile, the plug 9 is plugged into the through hole 11, so that heat loss can be reduced.
A pretensioned pipe pile production process comprises the following steps:
s1 prestress tensioning: firstly placing a reinforcement cage in a lower die, then respectively connecting two end plates to two ends of the reinforcement cage, enabling the pier thick ends of the reinforcement cage to pass through the end plates, then connecting a tensioning plate 1 with the end plates through bolts, sleeving a baffle plate 3, sleeving a tensioning nut 4 on a tensioning screw rod 2, and finally tensioning the tensioning plate 1 by a tensioning machine, and tightening the tensioning nut 4;
s2, pouring concrete: uniformly pouring concrete into the reinforcement cage;
s3, centrifugal molding: after die assembly, placing the pipe die on a centrifugal machine, and forming a hollow pipe pile under the centrifugal action;
s4, steam curing: placing the pipe die in a curing chamber for steam curing;
s5, waste heat utilization: after steam curing, the pipe die is placed in a semi-closed environment, the tensioning nut 4 is firstly unscrewed, the baffle plate 3 is removed, at least three bolts which are connected between the tensioning plate 1 and the end plate and are close to the cover plate 51 are unscrewed, the positioning screw 8 is then unscrewed, the plug 9 is removed, the operating rod 7 is pulled away from the tensioning plate 1 and then applied to the rib plate 52, the plugging plate 6 is shifted into the abdicating groove 14, the cover plate 51 rotates to be misplaced with the through hole 11, then the U-shaped heat absorption pipe 10 passes through the through hole 11 and stretches into the pipe pile, the plug 9 is plugged into the through hole 11, finally one end of the U-shaped heat absorption pipe 10 is connected with the heat exchanger, cold water is introduced into the other end of the U-shaped heat absorption pipe after the cold water flows through the pipe die, so that residual heat of the pipe pile is fully absorbed, and after the heat absorption and cooling are completed.
It should be noted that, the semi-closed environment refers to a heat-insulating chamber having an opening for the pipe die to enter and exit from only one side, so as to reduce heat loss.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (7)
1. The utility model provides a stretch-draw subassembly, includes stretch-draw board (1), stretch-draw screw rod (2) that are connected with stretch-draw board (1), supplies baffle (3) that stretch-draw board (1) passed and stretch-draw nut (4) that are connected with stretch-draw screw rod (2) screw thread, its characterized in that: the novel pipe die is characterized in that a guide sleeve (5) used for being attached to the inner wall of the pipe die is sleeved on the outer side of the tensioning plate (1) in a rotating mode, a through hole (11) used for a U-shaped heat absorption pipe (10) to penetrate through is formed in the tensioning plate (1), a cover plate (51) is connected to the inner side of one end of the guide sleeve (5), a movable groove (12) used for the cover plate (51) to clamp in and rotate is formed in the tensioning plate (1), the movable groove (12) is communicated with the through hole (11), and a connecting hole (513) used for a bolt to penetrate through is formed in the cover plate (51) in a penetrating mode; the cover plate (51) is provided with a plugging plate (6) on one side, the plugging plate (6) covers the exposed part of the movable groove (12) opposite to the end plate, the thickness of the plugging plate (6) is smaller than the depth of the movable groove (12), one side of the plugging plate (6) is connected with an operating rod (7), the tensioning plate (1) is provided with an arc-shaped hole (13) for the operating rod (7) to pass through, and one side of the movable groove (12) is provided with a yielding groove (14) for the plugging plate (6) to move in; one side of the tensioning plate (1) deviating from the plugging plate (6) is provided with a rib plate (52), the rib plate (52) is fixedly connected to the inner side wall of the guide sleeve (5), and the operating rod (7) is provided with a clamping groove (71) for clamping the end part of the rib plate (52);
when the rib plates (52) are abutted against the inner wall of one end of the clamping groove (71) far away from the plugging plate (6), the plugging plate (6) is dislocated relative to the abdicating groove (14); when the rib plates (52) are abutted against the inner wall of one end of the clamping groove (71) close to the plugging plate (6), the plugging plate (6) can be turned into the abdication groove (14); the operation rod (7) is penetrated with a positioning screw (8) in threaded connection with the rib plate (52), and the rib plate (52) is abutted against the inner wall of one end, far away from the plugging plate (6), of the clamping groove (71) when the positioning screw (8) is connected with the rib plate (52).
2. A tensioning assembly according to claim 1, wherein: a plug (9) is arranged at the through hole (11), and semicircular grooves (91) used for the U-shaped heat absorption tubes (10) to penetrate are formed in two sides of the plug (9).
3. A tensioning assembly according to claim 2, wherein: plug (9) are connected with inserted link (92) towards one side of apron (51), one side of apron (51) towards through-hole (11) is provided with and supplies inserted link (92) male jack (511), inserted link (92) outside is provided with sand grip (93).
4. A tensioning assembly according to claim 3, wherein: the inner wall of the jack (511) is provided with a groove (512) for clamping the convex strip (93).
5. A pretensioned pipe pile production process involving a tensioning assembly according to any one of claims 1 to 4, comprising the steps of: s1 prestress tensioning, S2 concrete pouring, S3 centrifugal forming, S4 steam curing and S5 waste heat utilization;
the specific process of S5 waste heat utilization is as follows: firstly unscrewing a tensioning nut (4), removing a baffle plate (3), unscrewing a plurality of bolts which are connected between a tensioning plate (1) and an end plate and are close to a cover plate (51), then unscrewing a positioning screw (8), deviating from the tensioning plate (1), pulling an operating rod (7), then applying force on a rib plate (52), enabling a plugging plate (6) to be shifted into a yielding groove (14), enabling the cover plate (51) to be misplaced with a through hole (11), then enabling a U-shaped heat absorption pipe (10) to penetrate through the through hole (11) and extend into a pipe pile, finally enabling one end of the U-shaped heat absorption pipe (10) to be connected with a heat exchanger, then enabling cold water to be led in, and demoulding after cooling is completed.
6. A pretensioned pipe pile production process according to claim 5, characterized in that: the S5 waste heat utilization is performed in a semi-closed environment.
7. A pretensioned pipe pile production process according to claim 5, characterized in that: in S5 waste heat utilization, after the U-shaped heat absorption pipe (10) stretches into the pipe pile, the through hole (11) is plugged by the plug (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310105742.XA CN115958690B (en) | 2023-02-03 | 2023-02-03 | Tensioning assembly and production process of pretensioned pipe pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310105742.XA CN115958690B (en) | 2023-02-03 | 2023-02-03 | Tensioning assembly and production process of pretensioned pipe pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115958690A CN115958690A (en) | 2023-04-14 |
| CN115958690B true CN115958690B (en) | 2024-03-29 |
Family
ID=87360151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310105742.XA Active CN115958690B (en) | 2023-02-03 | 2023-02-03 | Tensioning assembly and production process of pretensioned pipe pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115958690B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1800510A (en) * | 2006-01-19 | 2006-07-12 | 张延军 | Prestressing force concrete pipe pile for low-temperature geothermal energy conversion |
| CN103753698A (en) * | 2014-02-18 | 2014-04-30 | 江苏鸿业重工有限公司 | Novel tension assembly structure for production of prestressed pipe pile |
| CN205600970U (en) * | 2016-04-18 | 2016-09-28 | 广东三和管桩股份有限公司 | Device for manufacturing prestressed pipe pile without end plate at one end |
| CN206855737U (en) * | 2017-05-24 | 2018-01-09 | 建华建材（蚌埠）有限公司 | The heat reclaim unit of concrete pre-stress pipe pile die |
| CN208267918U (en) * | 2018-05-21 | 2018-12-21 | 陈建文 | A kind of tubular pole residual neat recovering system |
| CN109624042A (en) * | 2018-11-20 | 2019-04-16 | 嘉兴市康立德构件有限公司 | A kind of pile for prestressed pipe production system |
| KR102052627B1 (en) * | 2018-07-31 | 2019-12-05 | 이엑스티 주식회사 | Apparatus and method of manufacturing modular pile |
| CN111098403A (en) * | 2019-12-19 | 2020-05-05 | 安徽省海仁材料科技有限公司 | Concrete pipeline pouring production mold capable of recycling hydration heat |
-
2023
- 2023-02-03 CN CN202310105742.XA patent/CN115958690B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1800510A (en) * | 2006-01-19 | 2006-07-12 | 张延军 | Prestressing force concrete pipe pile for low-temperature geothermal energy conversion |
| CN103753698A (en) * | 2014-02-18 | 2014-04-30 | 江苏鸿业重工有限公司 | Novel tension assembly structure for production of prestressed pipe pile |
| CN205600970U (en) * | 2016-04-18 | 2016-09-28 | 广东三和管桩股份有限公司 | Device for manufacturing prestressed pipe pile without end plate at one end |
| CN206855737U (en) * | 2017-05-24 | 2018-01-09 | 建华建材（蚌埠）有限公司 | The heat reclaim unit of concrete pre-stress pipe pile die |
| CN208267918U (en) * | 2018-05-21 | 2018-12-21 | 陈建文 | A kind of tubular pole residual neat recovering system |
| KR102052627B1 (en) * | 2018-07-31 | 2019-12-05 | 이엑스티 주식회사 | Apparatus and method of manufacturing modular pile |
| CN109624042A (en) * | 2018-11-20 | 2019-04-16 | 嘉兴市康立德构件有限公司 | A kind of pile for prestressed pipe production system |
| CN111098403A (en) * | 2019-12-19 | 2020-05-05 | 安徽省海仁材料科技有限公司 | Concrete pipeline pouring production mold capable of recycling hydration heat |
Non-Patent Citations (1)
| Title |
|---|
| 热交换桩的作用机制及其应用;余闯;潘林有;刘松玉;蔡袁强;;岩土力学;20090410(第04期);933-937 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115958690A (en) | 2023-04-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115958690B (en) | Tensioning assembly and production process of pretensioned pipe pile | |
| CN107322769A (en) | A kind of combinable precast truss frame superimposed sheet plastic mould | |
| CN206495492U (en) | Aluminum alloy mould plate reinforcing bar stiffening device | |
| CN220550877U (en) | Openable anchor with safety lock | |
| CN216641515U (en) | Bar planting reinforcing bar anticreep device at bottom of beam slab | |
| CN112959414B (en) | PVC pipeline perforating device | |
| CN214362660U (en) | Road and bridge crack reinforcing structure | |
| CN214245688U (en) | Underwater prefabricated concrete structure | |
| CN113172750A (en) | Tensioning device and tensioning process for enhanced precast pile | |
| CN206926062U (en) | A kind of combinable precast truss frame superimposed sheet plastic mould | |
| CN110593928A (en) | Anchor rod made of light-cured glass fiber reinforced rib | |
| CN219261750U (en) | Elastic template for construction of reserved holes of wellhead step | |
| KR100710443B1 (en) | Pipe and Compaction Grouting : PCG | |
| KR100361960B1 (en) | Multipurpose anchor | |
| CN213234290U (en) | Water stop screw capable of being recycled | |
| CN2260820Y (en) | Pile-forming drilling machine for pump concrete-pouring pile | |
| CN221118958U (en) | Non-planting bar grouting structure with expansion bolt head | |
| CN218346274U (en) | Cement mixing pile post-planting pressure-grouting pile supporting structure | |
| CN115156206B (en) | Environment-friendly high-stability pipe pile die inner wall residual paddle cleaning equipment | |
| CN215803176U (en) | Isolated type plastic-containing outer formwork mounting structure | |
| CN217782526U (en) | Hollow floor core mold with positioning support | |
| CN215568044U (en) | Gate valve for controlling printing raw materials | |
| CN116100671A (en) | Precast concrete stake stretching device | |
| CN221029813U (en) | Assembled bridge anti-collision wall | |
| CN114000519B (en) | Obliquely-arranged tension type steel anchor pipe micro-pile structure and implementation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Tensioning Component and Production Process of Pre tensioning Pipe Pile Granted publication date: 20240329 Pledgee: Agricultural Bank of China Limited Wencheng County sub branch Pledgor: WENZHOU QIANGHONG BUILDING MATERIAL CO.,LTD. Registration number: Y2024330000574 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |