CN110936476A - Connecting and positioning structure and prefabricated part forming die thereof - Google Patents
Connecting and positioning structure and prefabricated part forming die thereof Download PDFInfo
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- CN110936476A CN110936476A CN201811107784.2A CN201811107784A CN110936476A CN 110936476 A CN110936476 A CN 110936476A CN 201811107784 A CN201811107784 A CN 201811107784A CN 110936476 A CN110936476 A CN 110936476A
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- hole
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- positioning structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/22—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/76—Moulds
- B28B21/82—Moulds built-up from several parts; Multiple moulds; Moulds with adjustable parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
- B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
The invention discloses a connecting and positioning structure for preparing a concrete prefabricated part in a forming cavity of a mould, which comprises the following components: the template is provided with at least two positioning through holes at intervals; the fastener is detachably assembled in the positioning through hole; and the rigid rod is at least partially positioned in the forming cavity, and one end of the rigid rod is in threaded connection with the fastener. The connecting and positioning structure provided by the invention comprises a template, a fastener and a rigid rod which are connected, wherein the template is provided with a positioning through hole, and the fastener is inserted into the positioning through hole and then is connected with the rigid rod in a screwing way so as to ensure that the rigid framework is fixedly connected with a mold, so that the rigid rod is not easy to shift or loosen, and the positioning of the rigid framework in the mold is realized. The prefabricated part prepared by the prefabricated part forming die comprising the connecting and positioning structure has the effects of good structural strength, higher assembly strength and easier assembly.
Description
Technical Field
The invention relates to the field of buildings, in particular to a connecting and positioning structure and a prefabricated part forming die thereof.
Background
The fabricated building is widely popularized due to the advantages of high construction speed, small influence of weather conditions, labor saving, high efficiency, environmental protection, standardized quality and the like. At present, each concrete prefabricated part (such as a wall, a floor slab, a stair and the like) of an assembly type building is usually prefabricated and formed by a mould in a factory, and the concrete prefabricated parts can be conveniently formed by being transported to a construction site and then connected by using a connecting piece.
When the prefabricated part is manufactured, a mould and a rigid framework are required to be matched for use, wherein the rigid framework is formed by welding a plurality of rigid rods, and the rigid framework is stably arranged in an inner cavity of the mould through fixedly connecting the rigid rods with a mould plate. The existing fixing mode is that a nut is arranged at the end part of a rigid rod, a hole is formed in a die plate, and the rigid rod is fixedly connected with the nut in a hole inserted from the outer side of the die through a screw or a bolt, so that a rigid framework is fixedly connected with the die. However, the connection mode is limited only by the connection of the tail end of the bolt or the screw and the rigid rod, the position of the rigid rod is limited slightly, and the rigid rod is easy to displace. In addition, during the preparation process of the prefabricated parts, the problem of neglected nut installation is easy to occur, and the connection strength of the prefabricated parts in the fabricated building is weakened.
Disclosure of Invention
In order to solve the technical problems, the invention provides a connecting and positioning structure, a positioning through hole is formed in a template, a fastener is inserted into the positioning through hole and then is screwed with a rigid rod, so that the rigid framework is fixedly connected with the mold, the rigid rod is not easy to shift or separate from the template in the concrete distributing process, and the positioning of the rigid framework is convenient.
The invention provides a connecting and positioning structure for preparing a concrete prefabricated part in a forming cavity of a mould, which comprises
The template is provided with at least two positioning through holes at intervals;
the fastener is detachably assembled in the positioning through hole; and
the rigid rod is at least partially positioned in the forming cavity, and one end of the rigid rod is in threaded connection with the fastener;
the position error of two adjacent positioning through holes is less than or equal to 10 mm.
As a preferred technical scheme, the fastener comprises a rod body and a thickened stress platform;
the outer diameter or the diameter of the circumscribed circle of the stress platform is larger than the maximum diameter of the positioning through hole;
the rod body is provided with a mounting hole along the axial direction, the mounting hole comprises a threaded hole section, and the rigid rod is provided with an external threaded section matched with the threaded hole section;
and the peripheral surface of the rod body or the stressed platform is provided with a torque applying part exposed outside the positioning through hole.
The invention also provides a prefabricated part forming die comprising the connecting and positioning structure.
The connecting and positioning structure provided by the invention is characterized in that the template is provided with the positioning through hole, and the positioning through hole is inserted into the positioning through hole by the fastener and then is connected with the end part of the rigid rod in a screwing way, so that the rigid framework is fixedly connected with the mold, the rigid rod is not easy to shift or loosen, and the positioning of the rigid framework in the mold is realized; meanwhile, the end parts of the rigid rods are directly in threaded connection with the fasteners without intermediate connection structures such as nuts, each rigid rod is fixedly connected with the fastener, and the manufactured prefabricated part has higher connection strength.
The prefabricated part prepared by the prefabricated part forming die comprising the connecting and positioning structure has the effects of good structural strength, high assembly strength and easiness in assembly.
Drawings
FIG. 1 is a schematic structural view of a prefabricated part forming mold;
FIG. 2 is a schematic structural view of a connection positioning structure in embodiment 1;
FIG. 3 is a schematic structural view of a connection positioning structure in embodiment 2;
FIG. 4 is a schematic structural view of a connection positioning structure in embodiment 3;
FIG. 5 is a schematic structural view of a connection positioning structure in embodiment 4;
fig. 6 is a schematic structural view of a connection positioning structure in embodiment 5.
Description of reference numerals: 01-mould, 02-forming mould cavity, 03-rigid framework; 10-a template, 11-a support rib, 12-a positioning through hole, 121-a second sealing ring, 13-a wear-resistant sleeve and 14-a guide clamping ring; 20-a fastener, 21-a rod body, 211-an external thread section, 212-a conical end, 22-a stress platform, 23-a torque applying part, 24-a mounting hole, 241-a circular hole section, 242-a thread hole section, and 25-a first sealing ring; 30-rigid rod, 31-external thread section, 32-thickened section and 33-internal thread hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, the present embodiment provides a prefabricated part forming mold, which includes a connection positioning structure, where the connection positioning structure is used to prepare a concrete prefabricated part in a forming mold cavity 02 of a mold 01, where the forming mold cavity 02 is used to form a rigid framework 03, the rigid framework 03 is formed by connecting a plurality of rigid rods 30 through welding or binding, and the connection positioning structure of the present embodiment is used to connect and position the rigid framework 03 in the mold 01, so that the position of the rigid framework 03 in the forming mold cavity 02 is fixed.
As shown in fig. 2, the connecting and positioning structure provided by this embodiment includes a formwork 10, a fastener 20 and a rigid rod 30, wherein the formwork 10 is a part of a mold 01, the formwork 10 is preferably a hollow plate with a built-in support rib 11, a plurality of positioning through holes 12 are formed at intervals on the formwork 10, the position relationship between the positioning through holes 12 is determined according to the preparation standard of a concrete prefabricated component, the positioning through holes 12 penetrate through the formwork 10 in the thickness direction, and the support rib 11 can also guide the direction of the positioning through holes 12 to prevent the bending of the positioning through holes 12 or the inclination of the fastener 20. In order to stably insert the fastening member 20 into the positioning through hole 12 of the form 10, the thickness of the form 10 needs to be increased, and the hollow plate formed by the support rib 11 can achieve a certain thickness, and has the advantages of light weight and material saving.
The position error of the positioning through holes 12 on the template 10 relative to the positioning original point on the template is less than or equal to 20 mm, the positioning original point is formed by the intersection point of an X-direction reference edge (the length direction of the template) and a Y-direction reference edge (the width direction of the template) on the template, the position error of two adjacent positioning through holes 12 is less than or equal to 10 mm, namely, the distance between two adjacent positioning through holes 12 is kept consistent, the connection is convenient, and the aperture error of the positioning through holes 12 is less than or equal to 1 mm. The fastener 20 comprises a rod body 21, a torque applying part 23 arranged on the outer peripheral surface of the rod body 21 and a thickened stress platform 22, the rod body 21 is detachably assembled in the positioning through hole 12, and the rod body 21 can axially move or circumferentially rotate in the positioning through hole 12 and cannot radially shake. The body of rod 21 is seted up mounting hole 24 on the one end terminal surface of shaping die cavity 02, and mounting hole 24 is the blind hole that sets up along the body of rod 21 axial, and mounting hole 24 includes round hole section 241 and screw hole section 242, and round hole section 241 is close to shaping die cavity 02, and screw hole section 242 keeps away from shaping die cavity 02, and the minimum aperture of round hole section 241 is greater than the maximum aperture of screw hole section 242. Of course, in the fastener 20 provided by the present invention, the torque application portion 23 and the thickened force-receiving platform 22 may be a composite body.
The thickened stress platform 22 is annular, the outer diameter of the thickened stress platform is larger than the maximum diameter of the positioning through hole 12, so that the stress platform 22 is limited on one side of the template 10, which is far away from the molding die cavity 02, and the stress platform 22 is in contact connection with the surface of the template 10; the torque applying portion 23 may be a hexagonal head or other head for a wrench to apply force to the fastener 20 and to rotatably connect with the rigid rod 30, and the torque applying portion 23 is disposed on a side of the force-receiving platform 22 facing away from the molding cavity 02.
The end of the rigid rod 30 is provided with an external thread section 31 and an enlarged section 32, the minimum outer diameter of the enlarged section 32 is larger than the maximum outer diameter of the external thread section 31, the enlarged section 32 is matched with the round hole section 241 (including matching of shape and size), and the external thread section 31 is matched with the threaded hole section 242 of the fastener 20. The end of the rigid rod 30 is inserted into the mounting hole 24 of the fastener 20, the external thread section 31 is screwed with the threaded hole section 242, the thickened section 32 is attached to the circular hole section 241, and the gap between the thickened section 32 and the circular hole section 241 is within 0.5 mm, so that the concrete in the molding cavity 02 is sealed with the precision of mechanical manufacturing.
The replaceable wear-resistant sleeve 13 is embedded at one end, away from the molding cavity 02, of the positioning through hole 12, the wear-resistant sleeve 13 and the positioning through hole 12 can be in clearance fit, over fit or interference fit, the rod body 21 of the fastener 20 penetrates through the wear-resistant sleeve 13, and the wear-resistant sleeve 13 is used for bearing friction between the stress platform 22 and the template 10 at the peripheral part of the positioning through hole 12 when the fastener 20 is screwed with the rigid rod 30. If the wear-resistant sleeve 13 is not arranged, the template 10 at the periphery of the positioning through hole 12 can only be integrally replaced when the template 10 is damaged by friction for multiple times and cannot be used any more, so that the use cost is increased; after the wear-resistant sleeve 13 is used at the part easy to wear, only the wear-resistant sleeve 13 needs to be replaced, so that the use cost is greatly reduced.
The working principle of the connecting and positioning structure is as follows: inserting the rod body 21 of the fastener 20 into the positioning through hole 12 on the template 10, limiting the distance of inserting the rod body 21 into the positioning through hole 12 by the force bearing platform 22, inserting the end part of the rigid rod 30 into the mounting hole 24 of the fastener 20, connecting the external thread section 31 of the rigid rod 30 with the threaded hole section 242 in a screwing manner, and attaching the thickened section 32 with the circular hole section 241 to complete the fixing connection of the rigid rod 30 and the fastener 20.
The working principle of the prefabricated part forming die is as follows: the mould 01 is formed by splicing a plurality of mould plates 10 at different angles, a forming mould cavity 02 of a prefabricated part is arranged in the mould 01, more than two positioning through holes 12 are formed in the mould plates 10, a fastener 20 is inserted into each positioning through hole 12 from the outside of the forming mould cavity 02, an external thread section 31 is arranged at the end part of a rigid rod 30 on a rigid framework 03, and a plurality of rigid rods 30 are sequentially inserted into mounting holes 24 of the fasteners 20 to be screwed and fixed, so that the rigid framework 03 is fixedly connected with the mould 01, the building of the forming mould of the prefabricated part is completed, and concrete is filled into the forming mould cavity 02 of the mould 01 to form the required prefabricated part.
The kind of the prefabricated member is not limited to a wall prefabricated member, a floor prefabricated member, a beam prefabricated member or a column prefabricated member.
Example 2
The same portions as those in embodiment 1 are given the same reference numerals, and the same description is omitted.
Compared with the embodiment 1, the embodiment provides a preferable connection positioning structure, as shown in fig. 3, the connection positioning structure includes a formwork 10, a fastener 20 and a rigid rod 30, wherein the formwork 10 is a part of the mold 01, a plurality of positioning through holes 12 are formed in the formwork 10 at intervals, a positional relationship between the positioning through holes 12 is determined according to a concrete prefabricated part preparation standard, and the positioning through holes 12 penetrate through the formwork 10 in a thickness direction.
The position error of the positioning through holes 12 on the template 10 relative to the positioning original point on the template is less than or equal to 10 mm, the position error of two adjacent positioning through holes 12 is less than or equal to 5 mm, and the aperture error of the positioning through holes 12 is less than or equal to 0.5 mm.
The fastener 20 comprises a rod body 21, a torque applying part 23 arranged on the outer peripheral surface of the rod body 21 and a thickened stress platform 22, wherein the rod body 21 is detachably assembled in the positioning through hole 12, and the rod body 21 can axially move or circumferentially rotate in the positioning through hole 12 and cannot radially shake. The body of rod 21 is seted up mounting hole 24 on the one end terminal surface of shaping die cavity 02, and mounting hole 24 is the blind hole that sets up along the body of rod 21 axial, and mounting hole 24 includes round hole section 241 and screw hole section 242, and round hole section 241 is close to shaping die cavity 02, and screw hole section 242 keeps away from shaping die cavity 02, and the minimum aperture of round hole section 241 is greater than the maximum aperture of screw hole section 242. The rod body 21 is inserted into the positioning through hole 12 and a tapered end 212 having an outer diameter gradually decreasing toward a portion of the molding cavity 02; the tapered end 212 has an inner diameter of a partial circular bore section 241, and a first sealing ring 25 is embedded in the inner wall of the partial circular bore section 241 for sealing the rigid rod 30 with the fastener 20. The maximum diameter of the rod 21 is less than the thickness of the form 10.
The thickened stress platform 22 is annular, the outer diameter of the thickened stress platform is larger than the maximum diameter of the positioning through hole 12, so that the stress platform 22 is limited on one side of the template 10, which is far away from the molding die cavity 02, and the stress platform 22 is in contact connection with the surface of the template 10; a guide clamping ring 14 which is coaxial with the positioning through hole 12 is arranged on one side of the template 10, which faces away from the molding die cavity 02, the inner diameter of the guide clamping ring 14 is larger than the maximum aperture of the positioning through hole 12, the stress platform 22 is positioned in the guide clamping ring 14, and the guide clamping ring 14 and the stress platform 22 form clearance fit to prevent the fastener 20 from inclining or bending; the torque applying portion 23 may be a hexagonal head or other head for a wrench to apply force to the fastener 20 and to rotatably connect with the rigid rod 30, and the torque applying portion 23 is provided at an end of the rod body 21 away from the molding cavity 02.
The end of the rigid rod 30 is provided with an external thread section 31 and an enlarged section 32, the minimum external diameter of the enlarged section 32 is larger than the maximum external diameter of the external thread section 31, the enlarged section 32 is a tapered section, and the external diameter of the enlarged section 32 is gradually reduced in the direction from the enlarged section 32 to the external thread section 31, the enlarged section 32 is matched with the round hole section 241, and the external thread section 31 is matched with the threaded hole section 242 of the fastener 20. The end of the rigid rod 30 is inserted into the mounting hole 24 of the fastener 20, the external thread section 31 is screwed with the threaded hole section 242, the thickened section 32 is attached to the circular hole section 241, the gap between the thickened section 32 and the circular hole section 241 is within 0.5 mm, the concrete in the molding cavity 02 is sealed by the precision of mechanical manufacturing, and the rigid rod 30 and the fastener 20 are further sealed by the first sealing ring 25.
The replaceable wear-resistant sleeve 13 is embedded at one end, away from the molding cavity 02, of the positioning through hole 12, the wear-resistant sleeve 13 and the positioning through hole 12 can be in clearance fit, over fit or interference fit, the rod body 21 of the fastener 20 penetrates through the wear-resistant sleeve 13, and the wear-resistant sleeve 13 is used for bearing friction between the stress platform 22 and the template 10 at the peripheral part of the positioning through hole 12 when the fastener 20 is screwed with the rigid rod 30. If the wear-resistant sleeve 13 is not arranged, the template 10 at the periphery of the positioning through hole 12 can only be integrally replaced when the template 10 is damaged by friction for multiple times and cannot be used any more, so that the use cost is increased; after the wear-resistant sleeve 13 is used at the part easy to wear, only the wear-resistant sleeve 13 needs to be replaced, so that the use cost is greatly reduced.
A second sealing ring 121 with an inner wall surface matched with the outer peripheral surface of the tapered end 212 of the rod body 21 is embedded in one end, facing the molding cavity 02, of the positioning through hole 12, and is used for sealing the positioning through hole 12 and the rod body 21.
The working principle of the connecting and positioning structure is as follows: inserting the rod body 21 of the fastener 20 into the positioning through hole 12 on the template 10, limiting the length of the rod body 21 inserted into the positioning through hole 12 by the force-bearing platform 22, inserting the end part of the rigid rod 30 into the mounting hole 24 of the fastener 20, connecting the external thread section 31 of the rigid rod 30 with the threaded hole section 242 in a screwing manner, and attaching the thickened section 32 to the circular hole section 241 to complete the fixing connection of the rigid rod 30 and the fastener 20.
The working principle of the prefabricated part forming die is as follows: the mould 01 is formed by splicing a plurality of mould plates 10 at different angles, a forming mould cavity 02 of a prefabricated part is arranged in the mould 01, more than two positioning through holes 12 are formed in the mould plates 10, a fastener 20 is inserted into each positioning through hole 12 from the outside of the forming mould cavity 02, an external thread section 31 is arranged at the end part of a rigid rod 30 on a rigid framework 03, and a plurality of rigid rods 30 are sequentially inserted into mounting holes 24 of the fasteners 20 to be screwed and fixed, so that the rigid framework 03 is fixedly connected with the mould 01, the building of the forming mould of the prefabricated part is completed, and concrete is filled into the forming mould cavity 02 of the mould 01 to form the required prefabricated part.
The kind of the prefabricated member is not limited to a wall prefabricated member, a floor prefabricated member, a beam prefabricated member or a column prefabricated member.
Example 3
The same portions as those in embodiment 2 are given the same reference numerals, and the same description is omitted.
Compared with the embodiment 2, this embodiment provides a preferable connection positioning structure, as shown in fig. 4, the difference from the embodiment 2 is that the length of the rod body 21 is shortened, and thus the length of the whole fastener 20 is shortened, but the length of the rod body 21 is greater than the length of the mounting hole 24, so as to ensure that the length of the mounting hole 24 is sufficient to ensure the connection firmness of the mounting hole 24 and the rigid rod 30.
The guide collar 14 may be omitted because the fastener 20 is less likely to be angularly offset due to its reduced length.
The position error of the positioning through holes 12 on the template 10 relative to the positioning original point on the template is less than or equal to 5 mm, the position error of two adjacent positioning through holes 12 is less than or equal to 1 mm, and the aperture error of the positioning through holes 12 is less than or equal to 0.1 mm.
Example 4
The same portions as those in embodiment 2 are given the same reference numerals, and the same description is omitted.
Compared with the embodiment 2, this embodiment provides a preferred connection positioning structure, as shown in fig. 5, the difference from the embodiment 2 is that the length of the rod body 21 is shortened until the length of the fastening member 20 is consistent with the length of the mounting hole 24, and the mounting hole 24 in the rod body 21 is a through hole, and the length of the mounting hole 24 is enough to ensure the connection firmness of the mounting hole 24 and the rigid rod 30. The torque applying portion 23 in this embodiment is provided in the middle of the outer periphery of the rod body 21.
The position error of the positioning through holes 12 on the template 10 relative to the positioning origin on the template is less than or equal to 0.5 mm, the position error of two adjacent positioning through holes 12 is less than or equal to 0.5 mm, and the aperture error of the positioning through holes 12 is less than or equal to 0.05 mm.
Example 5
The same portions as those in embodiment 1 are given the same reference numerals, and the same description is omitted.
Compared with the embodiment 1, the embodiment provides a preferable connection positioning structure, as shown in fig. 6, the connection positioning structure includes a formwork 10, a fastener 20 and a rigid rod 30, wherein the formwork 10 is a part of the mold 01, a plurality of positioning through holes 12 are formed in the formwork 10 at intervals, a positional relationship between the positioning through holes 12 is determined according to a concrete prefabricated part preparation standard, and the positioning through holes 12 penetrate through the formwork 10 in a thickness direction.
The position error of the positioning through holes 12 on the template 10 relative to the positioning origin on the template is less than or equal to 0.05 mm, the position error of two adjacent positioning through holes 12 is less than or equal to 0.05 mm, and the aperture error of the positioning through holes 12 is less than or equal to 0.05 mm.
The fastener 20 comprises a rod body 21 and a torque applying part 23 arranged on the outer peripheral surface of the rod body 21, wherein the rod body 21 is detachably assembled in the positioning through hole 12, and the rod body 21 can axially move or circumferentially rotate in the positioning through hole 12 and cannot radially shake. The end of the rod body 21 facing the molding cavity 02 is formed with a male threaded section 211, and the torque applying portion 23 may be a hexagonal or other shaped head for a wrench to apply force to the fastener 20 and to screw with the rigid rod 30, and the torque applying portion 23 is provided at the end of the rod body 21 facing away from the molding cavity 02.
The end of the rigid rod 30 is provided with a thickened section 32, the end surface of the thickened section 32 is far away from the rod body of the rigid rod 30, and the end surface of the thickened section 32 is provided with an internal thread hole 33 matched with the external thread section 211 of the rod body 21. In use, the externally threaded section 211 of the shank 21 of the fastener 20 is threadedly engaged with the internally threaded bore 33 of the rigid rod 30.
The replaceable wear-resistant sleeves 13 are embedded at two ends of the positioning through hole 12, the wear-resistant sleeves 13 and the positioning through hole 12 can be in clearance fit or over fit or interference fit, the rod body 21 of the fastener 20 penetrates through the wear-resistant sleeves 13, and the wear-resistant sleeves 13 are used for bearing the friction between the torque applying part 23 and the template 10 at the peripheral part of the positioning through hole 12 when the fastener 20 is screwed with the rigid rod 30 and the friction between the thickened section 32 of the rigid rod 30 and the template 10 at the peripheral part of the positioning through hole 12. If the wear-resistant sleeve 13 is not arranged, the template 10 at the periphery of the positioning through hole 12 can only be integrally replaced when the template 10 is damaged by friction for multiple times and cannot be used any more, so that the use cost is increased; after the wear-resistant sleeve 13 is used at the part easy to wear, only the wear-resistant sleeve 13 needs to be replaced, so that the use cost is greatly reduced.
The working principle of the connecting and positioning structure is as follows: and inserting the rod body 21 of the fastener 20 into the positioning through hole 12 on the template 10 to expose the external thread section 211 out of the template 10, inserting the external thread section 211 into the internal thread hole 33 of the rigid rod 30 and connecting with the rigid rod 30 in a screwing way, and completing the fixed connection of the rigid rod 30 and the fastener 20.
The working principle of the prefabricated part forming die is as follows: the mould 01 is formed by splicing a plurality of mould plates 10 at different angles, a forming mould cavity 02 of a prefabricated part is arranged in the mould 01, more than two positioning through holes 12 are formed in the mould plates 10, a fastener 20 is inserted into each positioning through hole 12 from the outside of the forming mould cavity 02, an internal thread hole 33 is formed in the end part of a rigid rod 30 on a rigid framework 03, an external thread section 211 of the fastener 20 is inserted into the internal thread hole 33 to be screwed and fixed, so that the rigid framework 03 is fixedly connected with the mould 01, the building of the forming mould of the prefabricated part is completed, and concrete is filled into the forming mould cavity 02 of the mould 01 to form the required prefabricated part.
The kind of the prefabricated member is not limited to a wall prefabricated member, a floor prefabricated member, a beam prefabricated member or a column prefabricated member.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and all embodiments may be combined with each other, or some embodiments may be combined with existing conventional techniques to form other embodiments as will be apparent to those skilled in the art without inventive faculty.
Claims (10)
1. A connection positioning structure is used for preparing a concrete prefabricated part in a forming cavity of a mold, and is characterized in that: comprises that
The template is provided with at least two positioning through holes at intervals;
the fastener is detachably assembled in the positioning through hole; and
the rigid rod is at least partially positioned in the forming cavity, and one end of the rigid rod is in threaded connection with the fastener;
the position error of two adjacent positioning through holes is less than or equal to 10 mm.
2. The connection positioning structure according to claim 1, wherein: the fastener comprises a rod body and a thickened stress platform;
the outer diameter or the diameter of the circumscribed circle of the stress platform is larger than the maximum diameter of the positioning through hole;
the rod body is provided with a mounting hole along the axial direction, the mounting hole comprises a threaded hole section, and the rigid rod is provided with an external threaded section matched with the threaded hole section;
and the peripheral surface of the rod body or the stressed platform is provided with a torque applying part exposed outside the positioning through hole.
3. The connection positioning structure according to claim 2, wherein: the rod body forms a conical end with the gradually reduced outer diameter towards the molding die cavity;
and a sealing ring with the inner wall surface matched with the outer peripheral surface of the conical end is embedded in the positioning through hole.
4. The connection positioning structure according to claim 2, wherein: and a guide clamping ring which is coaxial with the positioning through hole is arranged on one side of the template, which is back to the molding die cavity, and clearance fit is formed between the guide clamping ring and the stress platform.
5. The connection positioning structure according to claim 2, wherein: the fastener is provided with an end face facing the molding die cavity, and the end face is provided with the mounting hole;
the mounting hole is a blind hole or a through hole.
6. The connection positioning structure according to claim 5, wherein: the mounting hole further comprises a round hole section, the round hole section is close to the molding die cavity, and the threaded hole section is far away from the molding die cavity;
the minimum aperture of the round hole section is larger than the maximum aperture of the threaded hole section;
the rigid rod is provided with a thickening section connected with the external thread section, the minimum external diameter of the thickening section is larger than the maximum external diameter of the external thread section, and the thickening section is matched with the round hole section.
7. The connection positioning structure according to claim 6, wherein: the thickening section is a conical section, and the outer diameter of the thickening section is gradually reduced in the direction from the thickening section to the external thread section.
8. The connection positioning structure according to claim 2, wherein: a wear-resistant sleeve is arranged in the positioning through hole, and the rod body penetrates through the wear-resistant sleeve;
the thickness of the template is greater than the maximum diameter of the rod body.
9. The connection positioning structure according to claim 1, wherein: the fastener axially contains in proper order: a torque application part, a round rod section and a screw section;
the outer diameter or the diameter of the circumscribed circle of the torque applying part is larger than the maximum diameter of the positioning through hole;
the axial length of the torque application part is less than or equal to the axial length of the positioning through hole.
10. The utility model provides a prefabricated component forming die which characterized in that: comprising the connection positioning structure of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107784.2A CN110936476A (en) | 2018-09-21 | 2018-09-21 | Connecting and positioning structure and prefabricated part forming die thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107784.2A CN110936476A (en) | 2018-09-21 | 2018-09-21 | Connecting and positioning structure and prefabricated part forming die thereof |
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| CN110936476A true CN110936476A (en) | 2020-03-31 |
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| CN201811107784.2A Withdrawn CN110936476A (en) | 2018-09-21 | 2018-09-21 | Connecting and positioning structure and prefabricated part forming die thereof |
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| CN (1) | CN110936476A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113561291A (en) * | 2020-04-28 | 2021-10-29 | 比亚迪股份有限公司 | Track beam mould |
-
2018
- 2018-09-21 CN CN201811107784.2A patent/CN110936476A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113561291A (en) * | 2020-04-28 | 2021-10-29 | 比亚迪股份有限公司 | Track beam mould |
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