CN215358996U - Prefabricated box girder internal mold structure - Google Patents
Prefabricated box girder internal mold structure Download PDFInfo
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- CN215358996U CN215358996U CN202121849994.6U CN202121849994U CN215358996U CN 215358996 U CN215358996 U CN 215358996U CN 202121849994 U CN202121849994 U CN 202121849994U CN 215358996 U CN215358996 U CN 215358996U
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Abstract
The utility model provides an internal mold structure of a prefabricated box girder, which comprises an internal mold body, a plurality of back edges and a connecting assembly. Wherein the inner mold body is of a hollow box-shaped structure; the back edges are respectively attached to the inner side surface of the inner mold body and used for supporting the inner mold body; the connecting assembly comprises a first connecting piece, a second connecting piece and a connecting pin, the first connecting piece is arranged on the inner side of the inner die body, the second connecting piece is arranged on the back edge, pin connecting holes corresponding to each other are formed in the first connecting piece and the second connecting piece, and the connecting pin is inserted into the pin connecting holes corresponding to each other. The internal mold body is connected with the back edge through a connecting assembly, wherein the first connecting piece and the second connecting piece in the connecting assembly are connected through a pin joint to realize the connection of the internal mold body and the back edge. Use the pin joint to replace threaded connection, under the prerequisite that does not influence the stupefied support stability to the interior mould body of back of the body, can make the dismouting between interior mould body and the stupefied of the back of the body more convenient, reduce the intensity of labour of dismouting mould, improve the efficiency of dismouting mould process.
Description
Technical Field
The utility model belongs to the technical field of prefabricated box girders, and particularly relates to an internal mold structure of a prefabricated box girder.
Background
The box girder used in the bridge engineering comprises a prefabricated box girder and a cast-in-place box girder. In the manufacturing process of the prefabricated box girder, after a box girder model is enclosed by a box girder pedestal, an inner mold and an outer mold, concrete is poured into the box girder model to form the box girder. The prefabricated box girder internal mold structure is composed of multiple sections, and each section of internal mold is composed of an internal mold body and a back rib for supporting the internal mold body. At present, the back edge and the inner mould body are connected through bolts. Therefore, when the internal mold is disassembled, the disassembling and the assembling of the bolts between the back edges and the internal mold body are all completed, and the use frequency of the internal mold is higher, namely the disassembling and the assembling of the bolts between the internal mold body and the back edges increase the labor intensity of the disassembling and the assembling work of the internal mold, and the efficiency of the disassembling process is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a prefabricated box girder inner mold structure capable of being conveniently disassembled and assembled.
In order to achieve the purpose, the utility model adopts the technical scheme that: provided is a precast box girder inner mold structure, including:
the inner die body is of a hollow box-shaped structure;
the back ridges are respectively attached to the inner side surface of the inner mold body and used for supporting the inner mold body; and
the connecting assembly comprises a first connecting piece, a second connecting piece and a connecting pin, the first connecting piece is arranged on the inner side of the inner die body, the second connecting piece is arranged on the back edge, the first connecting piece and the second connecting piece are provided with pin joint holes corresponding to each other, and the connecting pin is inserted into the pin joint holes corresponding to each other.
In a possible implementation manner, the first connecting piece is formed with a first connecting plate which is arranged at an included angle with the inner side surface of the inner die body, the second connecting piece is formed with a second connecting plate which is arranged at an included angle with the long axis of the back edge, the pin joint holes are respectively formed in the first connecting plate and the second connecting plate, and the first connecting plate is attached to the second connecting plate.
In a possible implementation manner, in the same connecting assembly, a plurality of second connecting plates are arranged, the plurality of second connecting plates are distributed at intervals along the long axis of the back edge, an insertion groove is formed between every two adjacent second connecting plates, and the first connecting plate is inserted into the insertion groove.
In a possible implementation manner, in the same connecting assembly, a plurality of first connecting plates are arranged, the first connecting plates are circumferentially distributed at intervals along the inner wall of the inner die body, an insertion groove is formed between every two adjacent first connecting plates, and the second connecting plates are inserted into the insertion grooves.
In a possible implementation manner, the first connecting plate is perpendicular to the inner side surface of the inner mold body, and the second connecting plate is perpendicular to the long axis of the back ridge.
In a possible implementation manner, the first connecting piece is a first angle steel, one side plate of the first angle steel is attached to the inner side surface of the inner mold body, and the other side plate forms the first connecting plate;
the second connecting piece is a second angle steel, the L-shaped end face of the second angle steel is attached to the back edge, and a side plate of the second angle steel forms the second connecting plate.
In a possible implementation manner, the connecting pin is a taper pin, and the pinning hole is a taper hole matched with the taper pin.
In one possible implementation manner, the inner mold body comprises an upper mold plate, a lower mold plate positioned below the upper mold plate, two upper side plates arranged oppositely and two lower side plates arranged oppositely;
the upper side plate and the lower side plate are bending plates, the upper bending edges of the two upper side plates are respectively connected to two ends of the upper template, the lower bending edges of the two upper side plates are respectively connected to the upper bending edges of the two lower side plates, and the lower bending edges of the two lower side plates are respectively connected to two ends of the lower template.
In a possible implementation mode, the stupefied back of the body divide into the stupefied, the stupefied and the stupefied side of the body of the back of the body, the stupefied laminating of the back of the body of the side has two, the stupefied laminating of the back of the body of the top board in cope match-plate pattern and two the limit setting of bending on the upper portion of cope match-plate pattern, the stupefied laminating of the back of the body of the side in two the limit setting of bending on the lower bolster upper portion, the stupefied laminating of the back of the body of the side in lower bolster and two the limit setting of bending on the lower bolster lower part.
In a possible implementation manner, the top wall of the inner die body is arranged at an included angle relative to the bottom wall of the inner die, and the distance between the two side walls of the inner die body is gradually reduced from top to bottom.
The utility model provides a prefabricated box girder internal mold structure which has the beneficial effects that: compared with the prior art, the inner die body is connected with the back edge through the connecting assembly, and the first connecting piece and the second connecting piece in the connecting assembly are connected with the inner die body and the back edge through the pin joint. Use the pin joint to replace threaded connection, under the prerequisite that does not influence the stupefied support stability to the internal mold body of back of the body, can make the dismouting between internal mold body and the stupefied of the back of the body more convenient, reduced the intensity of labour of prefabricated box girder internal mold structure dismouting process to the efficiency of dismouting mould process has been improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a cross section of an internal mold structure of a precast box girder according to an embodiment of the present invention;
FIG. 2 is an enlarged view of part A of FIG. 1;
FIG. 3 is a schematic structural diagram of another embodiment of FIG. 2;
fig. 4 is a schematic structural diagram of a connection form of the back edge and the second connecting member in fig. 1.
In the figure: 1. an inner mold body; 11. mounting a template; 12. a lower template; 13. an upper side plate; 14. a lower side plate; 2. back corrugation; 21. upper back arris; 22. a lower back edge; 23. side back ridges; 3. a connecting assembly; 31. a first connecting plate; 32. a second connecting plate; 33. and (4) a taper pin.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, a precast box girder inner mold structure according to the present invention will now be described. The precast box girder internal mold structure in the embodiment comprises an internal mold body 1, a plurality of back ridges 2 and a connecting assembly 3. Wherein, the inner mould body 1 is a hollow box-shaped structure; the back ridges 2 are respectively attached to the inner side surface of the inner mold body 1 and used for supporting the inner mold body 1; the connecting assembly 3 comprises a first connecting piece, a second connecting piece and a connecting pin, the first connecting piece is arranged on the inner side of the inner die body 1, the second connecting piece is arranged on the back edge 2, pin connecting holes corresponding to each other are formed in the first connecting piece and the second connecting piece, and the connecting pin is inserted into the pin connecting holes corresponding to each other.
Compared with the prior art, the prefabricated box girder internal mold structure provided in the embodiment has the advantages that the internal mold body 1 is connected with the back edge 2 through the connecting assembly 3, and the first connecting piece and the second connecting piece in the connecting assembly 3 are connected with the internal mold body 1 and the back edge 2 through pin joint. Use the pin joint to replace threaded connection, under the prerequisite that does not influence the stupefied 2 of the back of the body to the support stability of the internal mold body 1, can make the dismouting between internal mold body 1 and the stupefied 2 of the back of the body more convenient, reduced the intensity of labour of prefabricated box girder internal mold structure dismouting process to the efficiency of dismouting mould process has been improved.
Referring to fig. 1 to 3, in this embodiment, the first connecting member is formed with a first connecting plate 31 which forms an included angle with the inner side of the inner mold body 1, the second connecting member is formed with a second connecting plate 32 which forms an included angle with the long axis of the back arris 2, the first connecting plate 31 and the second connecting plate 32 provide a connecting position for connecting the inner mold body 1 and the back arris 2, wherein the pin holes are respectively formed in the first connecting plate 31 and the second connecting plate 32, so that the inner mold body 1 and the back arris 2 can be connected after the first connecting plate 31 and the second connecting plate 32 are pin-connected. And laminate first connecting plate 31 in the setting of second connecting plate 32 for there is not great clearance between first connecting plate 31 and second connecting plate 32, has improved the stability of connecting.
Of course, the first connecting piece and the second connecting piece may be in a block form as long as the first connecting piece and the second connecting piece can stably connect the inner mold body 1 and the back edge 2.
In the same connecting assembly 3 in this embodiment, the second connecting plates 32 are provided in plurality, and the plurality of second connecting plates 32 are distributed at intervals along the long axis of the back ridge 2. And an inserting groove is formed between the adjacent second connecting plates 32, and the first connecting plate 31 is inserted into the inserting groove, so that the connection stability between the first connecting plate 31 and the second connecting plate 32 can be further increased. Preferably, the second connecting plate 32 and the first connecting plate 31 in the connecting assembly 3 are provided in two, as shown in fig. 2.
As another embodiment of the above-mentioned connecting assembly 3, in the same connecting assembly 3, a plurality of first connecting plates 31 are provided, the plurality of first connecting plates 31 are distributed at intervals along the circumferential direction of the inner wall of the inner die body 1, an insertion groove is formed between adjacent first connecting plates 31, and the second connecting plate 32 is inserted into the insertion groove. Among them, it is preferable that the first connecting plate 31 is provided in two and the second connecting plate 32 is provided in one, as shown in fig. 3.
As shown in fig. 1 to 3, in the present embodiment, the first connecting plate 31 is perpendicular to the inner side surface of the inner mold body 1, so that the connection angle between the first connecting plate 31 and the inner side surface of the inner mold body 1 is easier to control when the first connecting plate is connected to the inner side surface of the inner mold body, and the second connecting plate 32 is also perpendicular to the long axis of the back ridge 2, so that the angle between the second connecting plate 32 and the back ridge 2 is easier to control when the second connecting plate is connected to the back ridge 2. It should be noted that the angle between the first connecting plate 31 and the inner side surface of the inner die body 1 and the angle between the second connecting plate 32 and the long axis of the back ridge 2 can be set to any one same specific value according to actual conditions, so as to ensure that the first connecting plate 31 and the second connecting plate 32 are attached to each other.
As shown in fig. 1 to 3, in the present embodiment, the first connecting member is a first angle steel, one side plate of the first angle steel is attached to the inner side surface of the inner mold body 1, and the other side plate forms a first connecting plate 31; the second connecting piece is the second angle steel, and the L terminal surface laminating of second angle steel is connected in back stupefied 2, and a curb plate forms second connecting plate 32. The angle steel section is used as the first connecting piece and the second connecting piece, so that the manufacturing and mounting processes of the first connecting piece and the second connecting piece are simplified, and the manufacturing efficiency is improved.
As shown in fig. 1 to 3, wherein the inner die body 1 may be composed of an outer steel plate and an inner rectangular tube. Wherein one side of rectangular pipe is connected with the steel sheet, and another relative limit is connected with the curb plate laminating of first angle steel, and its another side plate of first angle steel forms first connecting plate 31. The back arris 2 can be made of channel steel, wherein a wing plate of the channel steel is attached to the inner side surface of the inner die body 1, the L-shaped end surface of the second angle steel is attached to the outer surface of a web plate of the channel steel, one side edge of the second angle steel is arranged in parallel to the long axis of the channel steel, and the other side edge of the second angle steel forms a second connecting plate 32 (shown in fig. 4). In order to ensure that the first angle steel and the second angle steel can be effectively connected, the size of the angle steel can be selected to be proper. Of course, the inner mold body 1 or the back edge 2 may be formed of a section material such as i-steel or H-steel.
The connecting pin in the present embodiment is a taper pin 33, and the pin connecting hole is a taper hole fitted to the taper pin 33. The taper pin 33 can be frequently disassembled and assembled, and the precision of the taper pin 33 is less affected by the frequent disassembling and assembling. The taper of the taper pin 33 is 1:50, when the taper pin 33 is stressed, the taper can enable an external force to generate pressure perpendicular to a contact surface of the taper pin 33 and the taper hole, and therefore friction force is generated between the taper pin 33 and the taper hole, and the taper pin 33 has good self-locking performance. Of course the connecting pin may also be a cylindrical pin.
In this embodiment, the inner mold body 1 includes an upper mold plate 11, a lower mold plate 12 located below the upper mold plate 11, two upper side plates 13 arranged oppositely, and two lower side plates 14 arranged oppositely, and the inner mold body 1 is detachably arranged, so that the difficulty in assembling and disassembling the inner mold body 1 can be reduced. The upper side plate 13 and the lower side plate 14 are bending plates, the upper bending edges of the two upper side plates 13 are respectively connected to two ends of the upper template 11, the lower bending edges of the two upper side plates 13 are respectively connected to the upper bending edges of the two lower side plates 14, and the lower bending edges of the two lower side plates 14 are respectively connected to two ends of the lower template 12. Set up the hookup location in the four corners position of avoiding interior mould body 1, increased interior mould body 1's intensity.
Wherein the connection end parts of the upper template 11, the lower template 12, the upper side plate 13 and the lower side plate 14 are all provided with connection end plates, the connection end plates are provided with connection holes, and connection bolts are arranged at the corresponding connection holes between the connection end plates to realize the connection and fixation of the upper template 11, the upper side plate 13, the lower side plate 14 and the lower template 12.
The back edge 2 in this embodiment is divided into an upper back edge 21, a lower back edge 22 and a side back edge 23, as shown in fig. 1, so that the operation flexibility of the disassembly and assembly work of the back edge 2 and the inner mold body 1 can be increased. The stupefied 23 of the side back of the body has two, and the stupefied 21 of the upper back of the body is laminated in the upper portion of cope match-plate pattern 11 and two cope match-plate pattern 13 and is bent the limit setting, and the stupefied 23 of the side back of the body is laminated in two 13 lower parts of the cope match-plate pattern 13 limit and two 12 upper portions of lower bolster limit settings of bending, and the stupefied 22 of the lower back of the body is laminated in lower bolster 12 and two 12 lower part of lower bolster limit settings of bending.
Optionally, the upper back edge 21, the lower back edge 22 and the side back edge 23 can be located in the same plane, at the moment, the two ends of the upper back edge 21 are respectively connected with the top ends of the two side back edge 23, and the two ends of the lower back edge 22 are respectively connected with the bottom ends of the two side back edge 23, so that the upper back edge 21, the lower back edge 22 and the side back edge 23 can support the inner mold body 1 and cannot interfere with each other. Of course, the upper back edge 21, the lower back edge 22 and the side back edges 23 may be arranged in a staggered manner, and each may be located in a different plane.
On the basis of the above embodiments, one back edge 2 and the inner mold body 1 may be connected by one connecting assembly 3 (as shown by the upper back edge 21 and the lower back edge 22 in fig. 1), or may be connected by a plurality of connecting assemblies 3 (as shown by the side back edge 23 in fig. 1), and the number is not limited herein.
The roof of centre form body 1 in this embodiment is the contained angle setting for centre form body 1's diapire, and the interval from the top down of centre form body 1's both sides wall reduces gradually to form required prefabricated box girder shape phase-match.
After the prefabricated box girder inner mold structure in the embodiment is used for manufacturing the prefabricated box girder, when the prefabricated box girder inner mold structure is disassembled, firstly, the connecting pin between the first connecting piece and the second connecting piece is drawn out, and the plurality of back ridges 2 are taken down; the upper form 11 is then removed and finally the other forms are removed in order from top to bottom. Wherein both sides can be performed simultaneously when removing the upper side plate 13 and the lower side plate 14.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a prefabricated box girder centre form structure which characterized in that includes:
the inner die body is of a hollow box-shaped structure;
the back ridges are respectively attached to the inner side surface of the inner mold body and used for supporting the inner mold body; and
the connecting assembly comprises a first connecting piece, a second connecting piece and a connecting pin, the first connecting piece is arranged on the inner side of the inner die body, the second connecting piece is arranged on the back edge, the first connecting piece and the second connecting piece are provided with pin joint holes corresponding to each other, and the connecting pin is inserted into the pin joint holes corresponding to each other.
2. The precast box girder inner mold structure according to claim 1, wherein the first connecting member is formed with a first connecting plate disposed at an angle with an inner side surface of the inner mold body, the second connecting member is formed with a second connecting plate disposed at an angle with a long axis of the back ridge, the pin holes are respectively formed at the first connecting plate and the second connecting plate, and the first connecting plate is disposed to be attached to the second connecting plate.
3. A precast box girder inner mold structure according to claim 2, wherein in the same connecting member, a plurality of second connecting plates are provided, the plurality of second connecting plates are spaced apart along the long axis of the back ridge, an insertion groove is formed between the adjacent second connecting plates, and the first connecting plate is inserted into the insertion groove.
4. A precast box girder inner mold structure according to claim 2, wherein in the same connecting member, a plurality of first connecting plates are provided, the plurality of first connecting plates are spaced apart from each other in the circumferential direction of the inner wall of the inner mold body, an insertion groove is formed between the adjacent first connecting plates, and the second connecting plate is inserted into the insertion groove.
5. A precast box girder inner mold structure according to claim 2, wherein the first connecting plate is perpendicular to the inner side surface of the inner mold body, and the second connecting plate is perpendicular to the long axis of the back ridge.
6. The precast box girder inner mold structure according to any one of claims 2 to 5, wherein the first connecting member is a first angle steel, one side plate of the first angle steel is attached to the inner side surface of the inner mold body, and the other side plate forms the first connecting plate;
the second connecting piece is a second angle steel, the L-shaped end face of the second angle steel is attached to the back edge, and a side plate of the second angle steel forms the second connecting plate.
7. A precast box girder inner mold structure according to claim 1, wherein the connection pin is a taper pin, and the pin connection hole is a taper hole adapted to the taper pin.
8. The precast box girder inner mold structure according to claim 1, wherein the inner mold body comprises an upper mold plate, a lower mold plate located below the upper mold plate, two upper side plates arranged oppositely and two lower side plates arranged oppositely;
the upper side plate and the lower side plate are bending plates, the upper bending edges of the two upper side plates are respectively connected to two ends of the upper template, the lower bending edges of the two upper side plates are respectively connected to the upper bending edges of the two lower side plates, and the lower bending edges of the two lower side plates are respectively connected to two ends of the lower template.
9. The internal mold structure of a prefabricated box girder as recited in claim 8, wherein the back ribs are divided into two upper back ribs, two lower back ribs and two side back ribs, the upper back ribs are attached to the upper mold plate and the upper bending edges of the two upper side plates, the side back ribs are attached to the lower bending edges of the two upper side plates and the upper bending edges of the two lower mold plates, and the lower back ribs are attached to the lower mold plate and the lower bending edges of the two lower mold plates.
10. A precast box girder inner mold structure according to claim 1, wherein the top wall of the inner mold body is disposed at an angle with respect to the bottom wall of the inner mold, and the distance between the two side walls of the inner mold body is gradually decreased from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121849994.6U CN215358996U (en) | 2021-08-09 | 2021-08-09 | Prefabricated box girder internal mold structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121849994.6U CN215358996U (en) | 2021-08-09 | 2021-08-09 | Prefabricated box girder internal mold structure |
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| Publication Number | Publication Date |
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| CN215358996U true CN215358996U (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121849994.6U Active CN215358996U (en) | 2021-08-09 | 2021-08-09 | Prefabricated box girder internal mold structure |
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- 2021-08-09 CN CN202121849994.6U patent/CN215358996U/en active Active
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Inventor after: Wang Liquan Inventor after: Zhai Zhenhui Inventor after: Duan Yinghui Inventor after: Liu Yanyan Inventor after: Zheng Ziyue Inventor after: Yan Yunfei Inventor after: Li Jie Inventor after: Han Feng Inventor after: Su Lichao Inventor after: Zhang Lixia Inventor after: Phreti ainival Inventor after: Zhang Guanghui Inventor after: Zheng Chengxing Inventor after: Wang Xiaojing Inventor before: Wang Liquan Inventor before: Zhai Zhenhui Inventor before: Duan Yinghui Inventor before: Liu Yanyan Inventor before: Zheng Ziyue Inventor before: Yan Yunfei Inventor before: Li Jie Inventor before: Han Feng Inventor before: Su Lichao Inventor before: Zhang Lixia Inventor before: Phreti ainival Inventor before: Zhang Guanghui Inventor before: Zheng Chengxing Inventor before: Wang Xiaojing |