CN211541662U - Combined mould for preparing prefabricated pile with variable cross section - Google Patents
Combined mould for preparing prefabricated pile with variable cross section Download PDFInfo
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- CN211541662U CN211541662U CN201921337736.2U CN201921337736U CN211541662U CN 211541662 U CN211541662 U CN 211541662U CN 201921337736 U CN201921337736 U CN 201921337736U CN 211541662 U CN211541662 U CN 211541662U
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Abstract
The utility model provides a combined mould for preparing a variable cross-section precast pile, which comprises an inner mould for forming the variable cross-section precast pile and an outer mould which is detachably connected with the inner mould and provides rigid support for the inner mould; wherein, the molding die cavity of the inner die is longitudinally provided with more than two bulges and/or grooves at intervals; the longitudinal length of the inner die is less than or equal to that of the outer die, and the rigidity of the inner die is less than that of the outer die. The utility model provides a preparation variable cross section precast pile's modular mold can adjust the appearance that changes the variable cross section precast pile through changing the centre form, consequently can produce the variable cross section precast pile of multiple specification shape in a modular mold who prepares variable cross section precast pile, has improved the commonality of mould in order to practice thrift mould cost expense.
Description
Technical Field
The utility model relates to a precast pile makes the field, especially relates to a modular mold of preparation variable cross section precast pile.
Background
The solid concrete precast pile is a pile foundation member commonly used in the existing buildings, the section of the solid concrete precast pile is generally rectangular or circular or T-shaped or H-shaped, and the like, the traditional precast pile is mostly a straight pile, but along with the development of the building industry, the solid concrete precast pile has higher requirements on the bearing capacity, the pulling resistance and the bending resistance of the precast pile, and therefore the precast pile with the variable section also appears. The bearing capacity and the pulling resistance of the precast pile can be improved in a mode of increasing the friction force between the pile body and the surrounding soil body due to the fact that the specific surface area of the precast pile with the variable cross section can be increased through the concave-convex pile body, but the shape is changed, and meanwhile new tests and requirements are provided for a forming die of the precast pile.
The prior art discloses a steel variable cross-section square pile die, which comprises an outer die with a die cavity and a plurality of lining units arranged in the die cavity at intervals along the length direction of the die cavity, wherein the lining units are welded and fixed on the inner wall of the outer die, and the lining units and the outer die jointly form the die cavity for preparing the variable cross-section square pile.
In the forming die for manufacturing the variable cross-section precast pile, the lining unit is welded and fixed on the inner wall of the outer die, that is, the die cavity structure of the steel variable cross-section square pile die is fixed and unadjustable. Therefore, when the structure of the precast pile with variable cross section to be produced is changed, the position of the variable cross section corresponding to the precast pile with variable cross section to be produced needs to be changed, however, the lining unit in the structure cannot be replaced due to welding fixation, only one precast pile with variable cross section with fixed specification and shape can be produced, and the universality is poor. Therefore, under the condition of different precast pile type requirements, only a plurality of moulds with different specifications can be manufactured to adapt to the manufacture of precast piles with variable cross sections of different specifications, and for prefabricated part manufacturers, the moulds with complete specifications have higher cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide a brand-new combination mould of preparation variable cross section precast pile for make the variable cross section precast pile of different specification shapes.
In order to solve the above problem, the utility model adopts the following technical scheme:
the utility model provides a combination formula mould of preparation variable cross section precast pile which characterized in that includes: the internal mold is used for forming the variable cross-section precast pile; the outer die is detachably connected with the inner die and provides rigid support for the inner die; wherein, the molding die cavity of the inner die is longitudinally provided with more than two bulges and/or grooves at intervals; the longitudinal length of the inner die is less than or equal to that of the outer die, and the rigidity of the inner die is less than that of the outer die.
Further, the outer die comprises a first U-shaped die with an open structure at the upper part; and the inner die is a second U-shaped die with an open structure at the upper part, and the outer wall of the inner die is matched with the inner wall of the outer die.
Furthermore, the inner die is detachably arranged in the outer die through the lock catch, and when the lock catch is loosened, the inner die can slide along the inner wall of the outer die randomly; when the lock catch is locked, the outer wall of the inner die is tightly attached to the inner wall of the outer die.
Further, the lock catch comprises clamping pieces and fasteners, the clamping pieces are arranged on two sides of the top of the inner die at intervals, the fasteners are installed on two sides of the top of the outer die, or the fasteners are arranged on two sides of the top of the inner die at intervals, and the clamping pieces are installed on two sides of the top of the outer die; after the fastener is buckled with the clamping piece, the outer wall of the inner die is attached to the inner wall of the outer die.
Furthermore, the first U-shaped section comprises an inner U-shaped template and an outer U-shaped template, and a plurality of longitudinal stress section steels are clamped between the inner U-shaped template and the outer U-shaped template.
Further, the longitudinal stress section steel and the inner U-shaped formwork and/or the longitudinal stress section steel and the outer U-shaped formwork are fixedly installed through fasteners; and/or the longitudinal length of the longitudinal stress section steel is greater than or equal to that of the inner die.
Furthermore, the inner mold comprises a bottom plate and side plates positioned on two sides of the bottom plate in the width direction, and the bottom plate and the side plates are clamped or joggled and fixed; preferably, the inner mold and the outer mold are fixed by fasteners.
Furthermore, a steam channel is formed in the bottom plate and/or the side plate of the inner die along the length direction of the forming die cavity; and the stress steel and/or the inner U-shaped template is/are provided with a steam channel.
Furthermore, a through groove is longitudinally formed in one side face of the bottom plate, a longitudinally continuous or discontinuous bulge is arranged on the side plate opposite to the side face of the bottom plate, and the bulge is matched with the outline shape of the groove; or a through bulge is longitudinally arranged on one side surface of the bottom plate, a longitudinally continuous or discontinuous groove is arranged on the side surface of the side plate opposite to the side surface of the bottom plate, and the shape of the bulge is matched with the outer contour of the groove.
Furthermore, the outer surface of the inner die is provided with a waterproof, dampproof and wear-resistant layer.
The utility model has the advantages that:
(1) can dismantle the centre form and connect in the outer mould, when the appearance of the variable cross section precast pile of required production changes, or the length dimension of thick stake section and/or thin stake section changes according to the designing requirement, the shaping die cavity that corresponds the variable cross section precast pile of production needs to change, the utility model provides a preparation variable cross section precast pile's modular mold can adjust the appearance that changes the variable cross section precast pile through changing the centre form, consequently passes through the utility model provides a brand-new preparation variable cross section precast pile's modular mold can produce the variable cross section precast pile of multiple specification shape, and above-mentioned modular mold who prepares variable cross section precast pile has increased the commonality of mould on the basis that current mould can only produce a fixed specification shape variable cross section precast pile to the mould cost has been reduced.
In addition, the inner mould can also be taken out, and the combined mould for preparing the precast pile with the variable cross section in the state can be used for producing a straight pile with the constant cross section size, so that the universality of the mould is enhanced.
(2) The rigidity of the material of the inner die is lower than that of the outer die, tensile force transmitted by the tensioning device acts on the outer die in a tensioning state, and due to the fact that the outer die bears most of tensile force, the material of the inner die can be made of non-steel materials, such as wood, plastics and the like, and the rigidity of the material of the inner die is lower than that of the outer die in a relatively lower tensile force bearing state. The inner die made of the non-steel material can be connected with each template in a non-welding fixing mode, uneven welding seams caused by welding of the steel inner die are avoided, and therefore the problems that the pile body is difficult to demould and the pile body is sheared by the uneven welding seams due to overlarge friction force between the uneven welding seams and the pile body during demoulding are solved. Therefore, the utility model provides a preparation variable cross section precast pile's modular mold can effectively solve the problem of drawing of patterns difficulty, guarantees that the pile body is complete.
Drawings
Fig. 1 is a perspective view of a combination die for manufacturing a precast pile with a variable cross section according to an embodiment of the present invention;
fig. 2 is a perspective view of a combined mold for additionally manufacturing a precast pile with a variable cross section according to an embodiment of the present invention;
fig. 3 is a diagram illustrating a state of use of the combined mold and tension assembly for manufacturing a precast pile with a variable cross section according to an embodiment of the present invention;
fig. 4 is a diagram illustrating another embodiment of the present invention showing a combined mold and tension assembly for manufacturing a precast pile with a variable cross-section;
fig. 5 is a front view of a combination die for manufacturing a precast pile with a variable cross section according to an embodiment of the present invention;
fig. 6 is a front view of an outer mold in an embodiment of the present invention;
fig. 7 is a front view of the inner mold in the embodiment of the present invention;
fig. 8 is a front view of a bottom plate in an embodiment of the present invention;
fig. 9 is a front view of a side plate in an embodiment of the present invention;
fig. 10 is a front view of another base plate in an embodiment of the invention;
fig. 11 is a front view of another side panel in an embodiment of the present invention;
the list of labels in the figure is:
100. preparing a combined mould of the variable cross-section precast pile;
1. an outer mold; 11. an inner U-shaped template; 12. stress profile steel; 13. an outer U-shaped template;
2. an inner mold; 21. molding a mold cavity; 211. a protrusion; 212. a groove; 23. a base plate; 230. a first groove; 23a, another base plate; 2300. a second groove; 231. expanding the tank; 232. a necking down groove; 24. a side plate; 240. a first protrusion; 24a, another side plate; 2400. a second protrusion; 241. a swelling part; 242. a necked-down portion; 25. a steam channel;
3. locking; 31. a fastener; 32. a fastener; 321. a buckle connecting plate; 322. buckling;
41. stretching the plate; 42. a fixing plate; 421. a first mounting limiting surface; 43. an end plate; 44. a screw.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments.
For convenience, the terms of interest in this embodiment are defined as follows:
herein, the length direction of the die body is defined as the longitudinal direction, the width direction of the die body is the transverse direction, and the direction perpendicular to the horizontal plane is the up-down direction, wherein the direction close to the ground is the down direction, and the direction far away from the ground is the up direction;
the definition is inner and outer along the direction close to the axis of the combined mould for preparing the precast pile with the variable cross section, and the definition is preferably applied to all parts without other descriptions.
In order to facilitate understanding of the technical solutions of the present invention, the following detailed description is made with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-2, the present invention provides a modular mold 100 for manufacturing a precast pile with a variable cross-section, wherein the modular mold 100 for manufacturing a precast pile with a variable cross-section comprises an inner mold 2 and an outer mold 1. The inner die 2 is used for forming the precast pile with the variable cross section, the outer die 1 provides rigid support for the inner die 2, and the outer die 1 is detachably connected with the inner die 2; wherein, the shaping die cavity 21 of centre form 2 is formed with two or more archs 211 and/or recess 212 along longitudinal interval, adopts this kind of structure, and the shaping die cavity 21 of this centre form 2 can form the precast pile of thick thin pile section interval distribution, and this precast pile increases the frictional force between variable cross section precast pile and the surrounding soil body through the area of contact of increase pile body surface and soil, and then can strengthen the tensile resistance to plucking performance of precast pile.
In addition, as shown in fig. 3 to 4, the longitudinal length of the inner mold 2 is less than or equal to the longitudinal length of the outer mold 1, and the rigidity of the inner mold 2 is less than that of the outer mold 1. In a tensioned state, the end plate 43 and the fixing plate 42 respectively abut against both end surfaces of the combined mold 100 for manufacturing the precast pile with a variable cross section. Specifically, as shown in fig. 3, when the longitudinal length of the inner mold 2 is smaller than the longitudinal length of the outer mold 1, two end surfaces of the inner mold 2 and two end surfaces of the outer mold 1 are not coplanar completely or have one end surface coplanar, and fig. 3 shows a case where two end surfaces of the inner mold 2 and two end surfaces of the outer mold 1 are not coplanar respectively, at this time, the first installation limiting surface 421 of the fixing plate 42 and the second installation limiting surface (not shown in the figure) of the end plate 43 abut against the two end surfaces of the outer mold 1 respectively, and at this time, the acting force transmitted by tensioning acts on the outer mold 1; as shown in fig. 4, when the longitudinal length of the inner mold 2 is equal to the longitudinal length of the outer mold 1, two end faces of the outer mold 1 and the inner mold 2 are coplanar respectively, and jointly form an end face of the combined mold 100 for preparing the precast pile with the variable cross section, a first installation limiting face 421 of the fixing plate 42 and a second installation limiting face (not shown in the figure) of the end plate 43 are abutted against the two end faces of the combined mold 100 for preparing the precast pile with the variable cross section respectively, tensile force transmitted by the fixing plate 42 and the end plate 43 acts on the end faces of the inner mold 2 and the outer mold 1 simultaneously, and contact areas between the first installation limiting face 421 of the fixing plate 42 and the second installation limiting face (not shown in the figure) of the end plate 43 and the end face of the outer mold are increased. By adopting the structure, in a stretching state, the stretching force transmitted by the stretching device acts on the outer die 1 or acts on the outer die 1 and the inner die 2 simultaneously, and because the outer die 1 bears most of the stretching force, the inner die 2 can adopt non-steel materials with lower rigidity than the outer die 1, such as wood, plastic and the like, in a state of bearing relatively smaller stretching force. The inner die 2 made of the non-steel material can be prepared in an integrated forming mode, uneven welding seams caused by welding of the steel inner die 2 are avoided, and therefore the problems that demoulding is difficult and the pile body is sheared by the welding seams due to overlarge friction force between the uneven welding seams and the pile body in demoulding are solved.
In a specific scheme, as shown in fig. 5, the outer die 1 comprises a first U-shaped die with an open structure at the upper part; and the inner die 2 is a second U-shaped die with an open structure at the upper part, and the outer wall of the inner die 2 is matched with the inner wall of the outer die 1. First U type mould and the second U type mould of uncovered structure and adaptation make external mold 1 and centre form 2 more convenient when the installation location, in addition, 2 centre forms of uncovered formula structure make more convenient on the cloth, often fight at uncovered top cloth through cloth truck and cloth in production. The detachable connection of the inner mold 2 and the outer mold 1 is beneficial to the replacement of the inner mold 2, the transportation of the mold and the replacement of a vulnerable template.
In detail, referring to fig. 5, the inner mold 2 is detachably mounted in the outer mold 1 through the latch 3, and when the latch 3 is released, the inner mold 2 can slide freely along the inner wall of the outer mold 1; when the lock catch 3 is locked, the outer wall of the inner die 2 is tightly attached to the inner wall of the outer die 1. When the variable cross section precast pile structure of required production changes, or the length dimension of thick stake section and/or thin stake section when the design requirement changes, the shaping die cavity 21 that corresponds the variable cross section precast pile of production need change, the utility model provides a modular mold 100 of preparation variable cross section precast pile can adjust the structure that changes the variable cross section precast pile through changing centre form 2, consequently passes through the utility model provides a brand-new modular mold 100 of preparation variable cross section precast pile can produce the variable cross section precast pile of multiple specification shape, and above-mentioned modular mold 100 of preparation variable cross section precast pile has increased the commonality of mould on the basis that current mould can only produce a fixed specification shape variable cross section precast pile to mould cost has been reduced. In addition, the inner mold 2 may be removed, and the sectional mold 100 for manufacturing a precast pile with a variable cross section in this state may be used to produce a straight pile with a constant cross-sectional size, so that the versatility of the mold is enhanced.
Further, as shown in fig. 5-7, the latch 3 includes clamping pieces 31 and fasteners 32, the clamping pieces 31 are arranged at two sides of the top of the inner mold 2 at intervals, the fasteners 32 are arranged at two sides of the top of the outer mold 1, or the fasteners 32 are arranged at two sides of the top of the inner mold 2 at intervals, and the clamping pieces 31 are arranged at two sides of the top of the outer mold 1; after the buckle 322 is buckled with the clamping piece 31, the outer wall of the inner die 2 is attached to the inner wall of the outer die 1. The clamping piece 31 and the clamping piece 32 can be in L-shaped fastening, the connecting part of the clamping piece 32 and the top of the outer die 1 can be detachably connected, when the inner die 2 needs to be replaced or the position of the inner die is adjusted, the clamping piece 322 and the clamping piece 31 are unlocked, the inner die 2 is pushed to be adjusted to a proper position or replaced, the clamping piece 322 and the clamping piece 31 on the inner die 2 are fastened after the adjustment is finished, the inner die 2 is fixed again, and the outer wall of the inner die 2 is attached to the inner wall of the outer.
Further, as shown in fig. 3 and 6, the first U-shaped form includes an inner U-shaped form 11 and an outer U-shaped form 13, and a plurality of longitudinal force-bearing steel bars 12 are sandwiched between the inner U-shaped form 11 and the outer U-shaped form 13. In a stretching state, a stretching device is arranged in the die cavity and comprises a stretching plate 41, a fixing plate 42 and an end plate 43, a reinforcement cage (not shown in the figure) formed by a plurality of reinforcements is connected between the stretching plate 41 and the fixing plate 42, and the stretching plate 41 is connected with the end plate 43 through a screw 44. Wherein, the end plate 43 and the fixing plate 42 respectively abut against two end surfaces of the outer die 1, so that the outer die 1 bears most of tensile force in the tensioning process. Therefore, the stress steel 12 arranged between the inner U-shaped template 11 and the outer U-shaped template 13 of the outer die 1 is beneficial to increasing the strength of the outer die 1, so that the outer die 1 can bear tensile force in the tensioning process without damaging the yield strength of the outer die 1, and the stability of the die structure is ensured.
In addition, the longitudinal stress steel 12 and the inner U-shaped formwork 11 and/or the longitudinal stress steel 12 and the outer U-shaped formwork 13 are/is fixedly installed by fasteners (not shown in the figure), and by adopting the detachable structure, the damaged formwork can be replaced or detached and repaired under the condition that the outer die 1 is damaged, so that the maintenance cost can be effectively reduced; in addition, the longitudinal length of the longitudinal force-bearing steel 12 is set to be greater than or equal to the longitudinal length of the inner mold 2. When the prestress is tensioned, the outer die provides longitudinal rigid support for the inner die, and the outer die bears most of the tensioning force, so that the tensile and compressive properties of the outer die need to be enhanced to ensure that the outer die has enough strength to bear the tensioning force. The key point of improving the tensile and compressive performance of the outer die is stress-bearing section steel which can be channel steel, H-shaped steel, I-shaped steel and the like, preferably, the stress-bearing section steel in the embodiment is a square tube, and the bending resistance of the square tube is more excellent when the square tube bears tensile force. The stress section steel strengthens the tensile and pressure resistance of the outer die, and further, under the condition that the longitudinal length of the longitudinal stress section steel 12 is greater than or equal to that of the inner die 2, the end plates and the fixing plates fixed at the two ends of the die are always in contact with the outer die, so that the stress section steel 12 bears larger tensile force during tensioning, the deformation amount of the inner die 2 after being subjected to the tensile force is reduced, and the service life of the whole die is prolonged.
As shown in fig. 7, the inner mold 2 includes a bottom plate 23 and side plates 24 located at two sides of the bottom plate 23 in the width direction, and the bottom plate 23 and the side plates 24 are fixed by clamping or joggling. By adopting the connection arrangement, the inner die 2 can be connected by the structure of the inner die, so that the part cost consumed by other connection modes such as threaded connection, pin shaft connection and the like is reduced; in addition, the inner die 2 is detachably connected with the bottom plate 23 and the side plates 24, so that the die is more convenient to transport, the using field of the die is not limited in a precast pile factory, and the die can be applied to the field preparation of the variable-section precast pile on a construction site.
Preferably, the inner mold 2 and the outer mold 1 are fixed by fasteners (not shown), specifically, the fasteners may be rivets, screws, bolts, etc. For the buckle 322 connection, the installation clearance of fixing the inner mold 2 and the outer mold 1 by the fastener installation is smaller, the connection strength is higher, and the connecting piece is not easy to shear and break during demolding, so that the installation stability of the inner mold 1 and the outer mold 1 is ensured, and the service life is prolonged.
Further, as shown in fig. 7-9, a first through groove 230 is formed in a side surface of the bottom plate 23 in a longitudinal direction (i.e., a length direction of the molding cavity 21), the side plate 24 opposite to the side surface of the bottom plate 23 has a first protrusion 240 that is longitudinally continuous and/or discontinuous, and the first protrusion 240 is matched with an outer contour shape of the first groove 230; or, a first protrusion 240 is longitudinally disposed on one side surface of the bottom plate 23, a first groove 230 is longitudinally continuous or discontinuous on the side surface of the side plate 24 opposite to the side surface of the bottom plate 23, and the first protrusion 240 is matched with the first groove 230 in shape.
Specifically, as shown in fig. 8, the first through-groove 230 formed in the side surface of the bottom plate 23 in the longitudinal direction includes two portions, i.e., an enlarged groove 231 and a constricted groove 232. The maximum linear distance of the expansion groove 231 in the height direction of the die is L1, the maximum linear distance of the necking groove 232 in the height direction of the die is L2, and L1 is larger than 1.2 times of L2, so that the first protrusion 240 connected with the expansion groove can only move in the length direction of the die but cannot move in the width direction of the die, and the structural stability of the assembled inner die 2 is guaranteed, and the quality of the variable-section precast pile prepared by the die is guaranteed.
As shown in fig. 9, the first through-hole 240 formed in the side surface of the side plate 24 in the longitudinal direction includes two portions, i.e., an enlarged portion 241 and a constricted portion 242. The maximum linear distance of the expanded part 241 along the height direction of the die is L3, the maximum linear distance of the necked part 242 along the height direction of the die is L4, and L4 with L3 being more than 1.2 times is arranged, so that the first protrusion 240 in the corresponding first groove 230 can only move along the length direction of the die but can not move along the width direction of the die, which is beneficial to ensuring the structural stability of the assembled inner die 2 and thus the quality of the variable cross-section precast pile prepared by the die. The outer contour shape of the first protrusion 240 is matched with the outer contour shape of the first groove 230, and after clamping, the first protrusion 240 can be completely accommodated in the first groove 230 to form stable clamping.
Further, the maximum value of the linear distance of the enlarged portion 241 in the mold height direction is L3 or less and L1 or more and L2 of 1.2 times or more. By adopting the structure, the expansion part 241 of the first protrusion 240 can smoothly enter the corresponding first groove 230, and the bottom plate 23 and the two side plates 24 form a stable structure without relative sliding after being completely installed.
Similarly, as shown in fig. 10, the second through groove 2300 longitudinally opened on one side surface of the another bottom plate 23a (i.e. the length direction of the molding cavity 21) may be a dovetail groove, the side plate 24a opposite to the another bottom plate 23a has a longitudinally continuous/discontinuous second protrusion 2400, and the second protrusion 2400 is matched with the outer contour of the second groove 2300 in shape; or, a through second protrusion 2400 is longitudinally formed on one side surface of the other bottom plate 23a, a longitudinally continuous/discontinuous second groove 2300 is formed in the side surface of the side plate 24a opposite to the side surface of the other bottom plate 23a, the second protrusion 2400 is matched with the outer contour of the second groove 2300 in shape, the shape is preferably a dovetail groove, and compared with other shapes, the dovetail groove is simple in shape and structure and convenient to machine on the basis that the joggle joint is stable and reliable, and the outer contour of the dovetail groove is formed by three straight line segments.
As shown in fig. 5, the bottom plate 23 and/or the side plate 24 of the inner mold 2 are provided with steam channels 25 along the length direction of the molding cavity 21. Or, the stress-bearing steel 12 and/or the inner U-shaped formwork 11 are/is provided with a steam channel 25. In order to improve the production efficiency of the combined mould 100 for preparing the variable cross-section precast pile, the steam channel 25 is arranged on the structure body of the mould along the length direction of the forming mould cavity 21, so that the problem that the mould needs to be lifted into a steam curing pool for steam curing in the traditional process is avoided. In the embodiment, the combined mold 100 for manufacturing the precast pile with the variable cross section is open at the top, so as to ensure the steam curing effect, a heat insulation covering structure (not shown in the figure) for sealing the open top is arranged above the combined mold 100 for manufacturing the precast pile with the variable cross section, and further, the heat insulation covering structure can be a rolling shutter type rolling cover, and the molding mold cavity 21 is closed in a rolling and pulling manner, so that the operation is simple and convenient. The heat preservation covering structure can also be a plate-type sealing cover, a steam channel 25 can be arranged in the plate-type sealing cover, the steam curing effect is improved, sealing strips can be arranged on the periphery of the plate-type sealing cover, the sealing effect is improved, and steam leakage is prevented during steam curing.
Further, the surface of the inner mold 2 is coated with waterproof, moistureproof and wear-resistant paint, the inner mold 2 is a wood mold or a plastic mold, and the outer mold 1 can be a steel mold, a reinforced concrete pouring mold, a brick laying mold and the like.
The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is defined by the scope defined by the claims, and a plurality of modifications and decorations made by those skilled in the art without departing from the spirit and scope of the present invention should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a combination formula mould of preparation variable cross section precast pile which characterized in that includes:
the internal mold is used for forming the variable cross-section precast pile; and
the outer die is detachably connected with the inner die and provides rigid support for the inner die;
wherein, the molding die cavity of the inner die is longitudinally provided with more than two bulges and/or grooves at intervals;
the longitudinal length of the inner die is less than or equal to that of the outer die, and the rigidity of the inner die is less than that of the outer die.
2. The modular mold for manufacturing precast pile with variable cross section according to claim 1, wherein the outer mold comprises a first U-shaped mold with an open structure at the upper part; and the inner die is a second U-shaped die with an open structure at the upper part, and the outer wall of the inner die is matched with the inner wall of the outer die.
3. The combined mould for preparing the precast pile with the variable cross section according to the claim 1 or 2, wherein the inner mould is detachably arranged in the outer mould through a lock catch, and when the lock catch is released, the inner mould can freely slide along the inner wall of the outer mould; when the lock catch is locked, the outer wall of the inner die is tightly attached to the inner wall of the outer die.
4. The combined mold for preparing the precast pile with the variable cross section according to claim 3, wherein the lock catch comprises clamping pieces and fasteners, the clamping pieces are arranged at two sides of the top of the inner mold at intervals, the fasteners are arranged at two sides of the top of the outer mold, or the fasteners are arranged at two sides of the top of the inner mold at intervals, and the clamping pieces are arranged at two sides of the top of the outer mold;
after the fastener is buckled with the clamping piece, the outer wall of the inner die is attached to the inner wall of the outer die.
5. The modular mold for manufacturing precast piles with variable cross sections as claimed in claim 2, wherein the first U-shaped section comprises an inner U-shaped mold plate and an outer U-shaped mold plate, and a plurality of longitudinal stress steel bars are clamped between the inner U-shaped mold plate and the outer U-shaped mold plate.
6. The modular mold for manufacturing precast pile with variable cross section according to claim 5, wherein the longitudinal force-bearing section steel and the inner U-shaped formwork and/or the longitudinal force-bearing section steel and the outer U-shaped formwork are fixed and installed by fasteners;
and/or the longitudinal length of the longitudinal stress section steel is greater than or equal to that of the inner die.
7. The combined mold for preparing the precast pile with the variable cross section according to claim 1 or 2, wherein the inner mold comprises a bottom plate and side plates positioned on two sides of the bottom plate in the width direction, and the bottom plate and the side plates are fixed in a clamping or joggling manner;
preferably, the inner mold and the outer mold are fixed by fasteners.
8. The combined mold for manufacturing the precast pile with the variable cross section according to claim 6, wherein a steam channel is formed on the bottom plate and/or the side plate of the inner mold along the length direction of the forming mold cavity;
and the stress steel and/or the inner U-shaped template is/are provided with a steam channel.
9. The combined mold for manufacturing the precast pile with the variable cross section according to claim 7, wherein a first groove is longitudinally formed in one side surface of the bottom plate, a first protrusion which is longitudinally continuous or discontinuous is formed on the side plate opposite to the side surface of the bottom plate, and the first protrusion is matched with the outer contour shape of the first groove;
or a through first bulge is longitudinally formed on one side surface of the bottom plate, a longitudinally continuous/discontinuous first groove is formed in the side surface of the side plate opposite to the side surface of the bottom plate, and the first bulge is matched with the outer contour shape of the first groove.
10. The modular mold for manufacturing a precast pile with a variable cross section according to any one of claims 1 to 2, 4 to 6 and 8 to 9, wherein the outer surface of the inner mold has a waterproof, moisture-proof and wear-resistant layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921337736.2U CN211541662U (en) | 2019-08-16 | 2019-08-16 | Combined mould for preparing prefabricated pile with variable cross section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921337736.2U CN211541662U (en) | 2019-08-16 | 2019-08-16 | Combined mould for preparing prefabricated pile with variable cross section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211541662U true CN211541662U (en) | 2020-09-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113102450A (en) * | 2021-03-31 | 2021-07-13 | 湖南军信环保股份有限公司 | Method for treating and safely burying waste incineration fly ash |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102450A (en) * | 2021-03-31 | 2021-07-13 | 湖南军信环保股份有限公司 | Method for treating and safely burying waste incineration fly ash |
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