CN116038876A - Connecting channel pipe jacking die - Google Patents

Abstract

The application discloses a connecting channel pipe jacking die, which comprises a base, a bottom die, a top die, an inner die, an outer die and two end dies, wherein a forming cavity for forming a duct piece is formed by mutually splicing the bottom die, the top die, the inner die, the outer die and the two end dies; the outer die comprises two outer die bodies which are symmetrically arranged, and a pouring opening is formed between the two outer die bodies; the base is rotatably arranged on the bottom die; after the die is closed, the bottom die is rotated upwards by 90 degrees, so that the bottom die and the top die are both dropped on the base, and the pouring opening faces upwards; before demolding, the bottom die is rotated downwards by 90 degrees, so that the bottom die falls on the ground, and the top die faces upwards. The connecting channel jacking pipe die has small occupied space, is convenient for pouring and demolding, and can not influence the tightness of the splicing part of the duct piece.

Description

Connecting channel pipe jacking die

Technical Field

The application relates to the technical field of pipe jacking molds, in particular to a connecting channel pipe jacking mold.

Background

At present, the supporting mode of tunnel construction is mainly divided into shield construction and pipe jacking construction. The shield method is mainly used for constructing a supporting structure by splicing five prefabricated concrete segments, and the pipe jacking method is used for constructing a supporting structure by splicing prefabricated single-section concrete segments in sequence.

However, the existing pipe jacking die still has the following defects: (1) Because the concrete pipe joint constructed by the pipe jacking method is of a circular ring structure, the pipe jacking die is of a whole ring structure, the overall size of the die is large, the pipe joint is difficult to demold, the occupied space is large, and the site construction is not facilitated; (2) The pipe joint is cast by adopting a vertical die in the prefabrication casting process, the casting operation port is small, and the construction progress is slow; moreover, the flatness of the pipe section water-collecting surface is not ideal in overall control, the tightness of the joint of the pipe section is easily affected, part of the concrete surface gas cannot effectively escape, special persons are required to repair the defect position after the pipe section is demolded, the construction period is long, and the cost is high.

Therefore, how to improve the existing pipe jacking die to overcome the above-mentioned shortcomings is a problem to be solved by the skilled person.

Disclosure of Invention

An object of the application is to provide a occupation space is little, is convenient for pour and drawing of patterns, and can not influence the contact channel push pipe mould of section of jurisdiction concatenation department leakproofness.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows: the utility model provides a communication channel push pipe mould, includes base, die block, top mould, interior side form, outside mould and two end moulds, die block, top mould, interior side form, outside mould and two end mould splice each other and form the shaping chamber that is used for shaping the section of jurisdiction between; the outer die comprises two symmetrically arranged outer die bodies, and a pouring opening is formed between the two outer die bodies; the base is rotatably arranged on the bottom die; after the die is closed, the bottom die is rotated upwards by 90 degrees, so that the bottom die and the top die are both located on the base, and the pouring opening faces upwards; before demolding, the bottom die is rotated downwards by 90 degrees, so that the bottom die falls on the ground, and the top die faces upwards.

Preferably, the outer mould body comprises at least two outer mould pieces; when concrete is poured, the outer modules are spliced sequentially from bottom to top, so that sectional pouring of the duct piece is realized. The advantages are that: if the outer die body is of an integral structure, when concrete is poured, the concrete can only enter from the pouring opening between the two outer die bodies, and the entering concrete can only fall to the end die position after a long time, so that the pouring time of the concrete can be increased, and meanwhile, the concrete close to the end die position can be fully tamped after long-time vibration. However, when the outer mold body comprises at least two outer mold blocks, the outer mold blocks can be spliced sequentially from bottom to top when concrete is poured, namely, the lowermost outer mold block (namely, the outer mold block close to the end mold) is spliced, and then a section of area corresponding to the outer mold block is poured directly; after the casting of the section area is completed, splicing the next outer module, and casting again; and by analogy, directly splicing the outer modules, and then pouring for the last time. That is, by arranging the outer mold body as a plurality of outer mold blocks, the segment casting of the segment can be realized, thereby being capable of sufficiently reducing the casting time of the concrete and being beneficial to shortening the vibrating time of the concrete.

Preferably, two adjacent outer modules are rotatably connected. The advantages are that: when two adjacent outer mold blocks are rotatably connected, completely splicing the lowest outer mold block and rotating the rest outer mold blocks to the outer side of the forming cavity when pouring concrete, so as to avoid interference to pouring concrete; after one-time pouring is completed, the next outer module can be directly rotated to the position of the forming cavity and spliced, and the rest outer modules above can still be rotated to the outer side of the forming cavity. That is, the rotatable connection mode at least omits the splicing and fixing between two adjacent outer modules; in addition, the integrity of the outer mold body is also ensured (i.e., although the outer mold body includes at least two outer mold pieces, the outer mold pieces are rotatably connected together in sequence), so that the wrong order of assembly between the outer mold pieces can be avoided.

Preferably, the connecting channel jacking pipe die further comprises an elastic piece, wherein the elastic piece is arranged between two adjacent outer die blocks, and the elastic piece is used for forcing the outer die block close to one side of the pouring opening to rotate in a direction away from the forming cavity. The advantages are that: under the action of the elastic piece, the outer die block close to one side of the pouring opening can be forced to rotate in the direction away from the forming cavity, namely the elastic piece forces the outer die block which is not spliced to automatically rotate in the direction away from the forming cavity, so that the outer die block which is not spliced is prevented from rotating due to vibration; otherwise, once the outer module rotates due to vibration, the pouring of concrete is easily affected.

Preferably, the communication channel jacking pipe die further comprises a stop piece, and the stop piece is arranged between two adjacent outer die blocks; the stop is used for limiting the outer mold block to continue rotating after the elastic piece forces the outer mold block close to one side of the pouring opening to move away from the forming cavity. The advantages are that: if the stop piece does not act, after the elastic piece forces the outer module close to one side of the pouring opening to be far away from the forming cavity, the weight of the outer module which is not spliced is fully acted on the elastic piece, so that the elastic piece bears a larger load for a long time, and the service life of the elastic piece is easily shortened. However, under the effect of the stop piece, when the elastic piece forces the outer module close to one side of the pouring opening to be far away from the forming cavity, the stop piece can limit the outer module to continuously rotate, so that the weight of the outer module is prevented from being fully acted on the elastic piece, and the service life of the elastic piece is prolonged.

Preferably, the stop piece comprises a fixed frame, a stop rod and a connecting arm; the fixed frame is arranged on the outer module close to one side of the end die, and the stop rod is horizontally arranged on the fixed frame; the connecting arm is arranged on the outer module close to one side of the pouring opening, and when the outer module rotates in the direction away from the forming cavity until the connecting arm contacts with the stop rod, the outer module is limited to continue rotating. The advantages are that: when the outer module rotates in a direction away from the forming cavity, the connecting arm on the outer module also rotates until the connecting arm rotates to be in contact with the corresponding stop rod, and the stop rod can limit the outer module to rotate.

Preferably, the fixing frame is provided with a mounting hole, and the stop lever is detachably arranged in the mounting hole; the connecting arm horizontally penetrates through the jack for adapting to the stop rod, and the jack passes through the axis of the mounting hole along with the rotating motion track of the connecting arm. The advantages are that: when the stop rod is inserted into the mounting hole, the corresponding outer module can be limited to rotate when the connecting arm rotates to be in contact with the stop rod. When the outer module is rotated first until the jack on the connecting arm on the outer module is aligned with the mounting hole, the stop rod is inserted into the jack and the mounting hole in sequence, and then the two adjacent outer modules can be locked.

Preferably, the connecting channel jacking pipe die further comprises an attached vibrator, and the attached vibrator is arranged on the inner die and/or the outer die. The advantages are that: such an attached vibrator requires no manual operation compared to a manually operated plug-in vibrator. In addition, when the attached vibrator is arranged on the inner side die, the occupied space of the die is not increased.

Preferably, when the central angle of the segment is less than or equal to 180 degrees, the inner die is arranged on the bottom die in a vertically sliding manner. The advantages are that: when the central angle of the duct piece is smaller than or equal to 180 degrees, the inner side die is directly arranged on the bottom die in a vertically sliding mode, and at the moment, no matter the die is clamped or stripped, the inner side die only needs to slide upwards or downwards, so that the inner side die does not need to be completely dismounted, and the die clamping and stripping efficiency of the inner side die is improved.

Preferably, when the central angle of the segment is greater than 180 degrees, the inner die comprises an upper die body and two lower die bodies; the upper die body can be arranged on the bottom die in a vertical sliding mode, and the two lower die bodies can be arranged on the bottom die in a horizontal sliding mode. The advantages are that: when the central angle of the pipe piece is larger than 180 degrees, if the inner side die is of an integral structure, the pipe piece can limit the inner side die to slide up and down. However, when the inner mold comprises an upper mold body and two lower mold bodies, the upper mold body can slide downwards when the two lower mold bodies slide in opposite directions along the left-right direction during demolding, and demolding can be completed. And similarly, when the mold is closed, the upper mold body slides upwards, and then the two lower mold bodies slide back along the left-right direction, so that the mold can be closed.

Compared with the prior art, the beneficial effect of this application lies in:

(1) Because the connecting channel jacking pipe die further comprises the base and is rotatably connected with the bottom die, after die assembly, the bottom die is firstly rotated upwards by 90 degrees, so that the bottom die and the top die are simultaneously dropped on the base, namely, the base supports the bottom die and the top die, and the pouring opening just faces upwards, at the moment, concrete can be poured into the pouring opening from top to bottom, namely, vertical pouring of the duct piece is realized, and pouring of the concrete (namely, the duct piece) is facilitated; after pouring is completed, trowelling and finishing are carried out on the concrete at the pouring opening, namely, the water collecting surface of the concrete is positioned on the outer annular surface of the formed duct piece, and the water collecting surface is positioned on the outer side of the duct piece after construction, namely, is not positioned at the splicing position between two adjacent duct pieces; that is, even if the flatness of the water receiving surface of the segment is not ideal, the sealability of the segment splice is not affected.

(2) Before the drawing of patterns, will the die block rotates 90 downwards, thereby makes the die block falls on subaerial, just the cope match-die orientation is upwards, at this moment, the cope match-die is located the top of die block, just interior side form outside mould and two the end mould is located just all around, thereby is convenient for unpack the cope match-die inside mould outside mould and two the end mould, and then be convenient for through lifting by crane equipment with the segment lifting after the shaping, in order to realize horizontal drawing of patterns, drawing of patterns operation is simpler, and can directly use traditional lifting by crane equipment, thereby need not to design the lifting by crane equipment of pertinence.

(3) Compared with the traditional casting mode of directly casting the annular duct piece, the casting mode of casting the duct piece can effectively reduce the size of the die, so that the occupied space of the die can be reduced, and the construction is convenient to directly perform on site.

Drawings

Fig. 1 is a perspective view of a connecting channel jacking die (front surface) provided by the application.

Fig. 2 is a perspective view of the connecting channel jacking die (back) of fig. 1 provided herein.

Fig. 3 is a schematic diagram of the connection channel jacking pipe die in fig. 1 according to the present application, which is changed from a vertical state to a horizontal state.

Fig. 4 is a partial exploded view of the tie-channel push bench die of fig. 1 provided herein.

Fig. 5 is a partial enlarged view of I in fig. 4 provided herein.

Fig. 6 is an exploded view of a part of the structure of the body 4 provided in the present application.

Fig. 7 is an enlarged view of the housing of fig. 6 provided herein.

Fig. 8 is a partial enlarged view at II in fig. 7 provided herein.

Fig. 9 is a front view of the structures of fig. 8 provided herein.

Fig. 10 is another state diagram of the structures of fig. 9 provided herein.

Fig. 11 is another state diagram of the structures of fig. 10 provided herein.

Fig. 12 is an enlarged view of the inner die of fig. 6 provided herein.

Fig. 13 is another view of the inner mold of fig. 12 provided herein.

Fig. 14 is an enlarged view of a portion of fig. 13 at III provided herein.

Fig. 15 is an enlarged view of the bottom mold of fig. 6 provided herein.

Fig. 16 is a partial enlarged view at IV in fig. 15 provided herein.

Fig. 17 is a front view of fig. 4 provided herein with the top mold omitted.

In the figure: 1. a bottom die; 2. a top mold; 3. an inner mold; 31. an upper die body; 32. a lower die body; 4. an outer mold; 41. an outer mold body; 411. an outer module; 5. end molding; 6. a base; 7. an elastic member; 8. a stopper; 81. a fixing frame; 811. a mounting hole; 82. a stop lever; 83. a connecting arm; 831. a jack; 9. an attached vibrator; 100. pouring the port; 200. a rotating arm; 300. a rotating shaft; 400. a slide rail; 500. a screw drive mechanism; 600. and a roller.

Detailed Description

The present application will be further described with reference to the specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

In the description of the present application, it should be noted that, for the azimuth terms such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific protection scope of the present application that the device or element referred to must have a specific azimuth configuration and operation, as indicated or implied. The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. The terms "comprises" and "comprising," along with any variations thereof, in the description and claims of the present application are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.

Referring to fig. 1 to 3, an embodiment of the present application provides a connection channel pipe jacking mold, which includes a base 6, a bottom mold 1, a top mold 2, an inner mold 3, an outer mold 4, and two end molds 5, wherein a molding cavity for molding a pipe piece is formed by mutually splicing the bottom mold 1, the top mold 2, the inner mold 3, the outer mold 4, and the two end molds 5; the outer side die 4 comprises two outer die bodies 41 which are symmetrically arranged, and a pouring port 100 is formed between the two outer die bodies 41; the base 6 is rotatably arranged on the bottom die 1; after the die assembly, the bottom die 1 is rotated upwards by 90 degrees, so that the bottom die 1 and the top die 2 are both dropped on the base 6, and the pouring opening 100 faces upwards; before demolding, the bottom die 1 is turned down by 90 degrees, so that the bottom die 1 falls on the ground and the top die 2 faces upwards. The rotatable connection between the base 6 and the bottom die 1 is not limited in this application, and may be realized by, for example, hinging.

The working principle of the connecting channel jacking pipe die is as follows: because the connecting channel jacking pipe die further comprises the base 6 and is rotatably connected with the bottom die 1, after die assembly, the bottom die 1 is firstly rotated by 90 degrees, so that the bottom die 1 and the top die 2 fall on the base 6 at the same time, namely, the base 6 supports the bottom die 1 and the top die 2, and the pouring opening 100 is just upwards, at the moment, as shown in fig. 1 and 2, concrete can be poured into the pouring opening 100 from top to bottom, namely, vertical pouring of a duct piece is realized, and pouring of the concrete (namely, the duct piece) is facilitated; after pouring is completed, trowelling and finishing are carried out on the concrete at the pouring opening 100, namely, the water collecting surface of the concrete is positioned on the outer annular surface of the formed duct piece, and the water collecting surface is positioned on the outer side of the duct piece after construction, namely, is not positioned at the splicing position between two adjacent duct pieces; that is, even if the flatness of the water receiving surface of the segment is not ideal, the sealability of the segment splicing position is not affected. Before the drawing of patterns, as shown in fig. 3, rotate 90 downwards with die block 1 to make die block 1 fall on subaerial, and top mould 2 orientation top, at this moment, top mould 2 is located die block 1's top, and inboard mould 3, outside mould 4 and two end moulds 5 are located just all around, thereby be convenient for dismantle top mould 2, inboard mould 3, outside mould 4 and two end moulds 5, and then be convenient for through lifting by crane the section of jurisdiction after the shaping, in order to realize horizontal drawing of patterns, drawing of patterns operation is simpler, and can directly use traditional lifting by crane equipment, thereby need not to design the lifting by crane of pertinence. Compared with the traditional casting mode of directly casting the annular duct piece, the casting mode of casting the duct piece can effectively reduce the size of the die, so that the occupied space of the die can be reduced, and the construction is convenient to directly perform on site.

Referring to fig. 6 and 7, in some embodiments of the present application, the outer mold body 41 includes at least two outer mold pieces 411; when concrete is poured, each outer module 411 completes splicing sequentially from bottom to top, so that sectional pouring of the duct piece is realized. If the outer mold 41 is of an integral structure, when concrete is poured, the concrete can only enter from the pouring opening 100 between the two outer mold 41, and the entering concrete can only fall to the position of the end mold 5 after a long time, which can increase the pouring time of the concrete, and meanwhile, the concrete close to the position of the end mold 5 can be fully tamped after long-time vibration. However, when the outer mold 41 includes at least two outer mold blocks 411, when concrete is poured, the outer mold blocks 411 may be spliced sequentially from bottom to top, that is, the lowermost outer mold block 411 (that is, the outer mold block 411 close to the end mold 5) is spliced, and then a section of the area corresponding to the outer mold block 411 is directly poured; after the casting of the section area is completed, splicing the next outer module 411, and casting again; and so on, after each outer module 411 is spliced, the last pouring is performed. That is, by arranging the outer mold 41 as the plurality of outer mold blocks 411, the segment casting of the segment is realized, so that the casting time of the concrete can be sufficiently reduced, and the vibrating time of the concrete can be advantageously shortened.

Referring to fig. 7, in some embodiments of the present application, there is a rotatable connection between two adjacent outer modules 411. When two adjacent outer modules 411 are rotatably connected, when concrete is poured, one outer module 411 at the lowest part is completely spliced, and the other outer modules 411 are rotated to the outer side of the forming cavity, so that interference to the poured concrete is avoided; after one casting is completed, the next outer module 411 can be directly rotated to the position of the forming cavity and spliced, and the rest outer modules 411 above can still be rotated to the outer side of the forming cavity. That is, this rotatable connection at least eliminates the need for splice fastening between two adjacent outer modules 411; in addition, the integrity of the outer mold body 41 is also ensured (i.e., although the outer mold body 41 includes at least two outer mold pieces 411, the outer mold pieces 411 are rotatably connected together in sequence), so that a wrong order of assembling the outer mold pieces 411 can be avoided.

It should be noted that, the rotatable connection manner between two adjacent outer modules 411 is not limited in this application, for example, as shown in fig. 8, two adjacent outer modules 411 are each provided with a rotating arm 200, and the corresponding two rotating arms 200 are rotatably connected through the rotating shaft 300.

Referring to fig. 8, in some embodiments of the present application, the tie channel jacking mold further includes an elastic member 7, where the elastic member 7 is disposed between two adjacent outer mold blocks 411, and the elastic member 7 is used to force the outer mold block 411 on the side close to the pouring opening 100 to rotate in a direction away from the molding cavity. Under the action of the elastic piece 7, the outer module 411 on one side close to the pouring opening 100 can be forced to rotate in the direction away from the forming cavity, namely the elastic piece 7 forces the outer module 411 which is not spliced to automatically rotate in the direction away from the forming cavity, so that the outer module 411 which is not spliced can be prevented from rotating due to vibration; otherwise, once the outer module 411 is rotated by vibration, the pouring of concrete is easily affected.

Referring to fig. 8, in some embodiments of the present application, the tie-channel push bench die further comprises a stopper 8, the stopper 8 being disposed between two adjacent outer die blocks 411; the stop 8 serves to limit the further rotation of the outer mould part 411 when the elastic element 7 forces the outer mould part 411 on the side close to the pouring opening 100 away from the mould cavity. If the stopper 8 does not act, after the elastic member 7 forces the outer mold block 411 on the side close to the pouring opening 100 to move away from the molding cavity, the weight of the outer mold block 411 which is not spliced acts on the elastic member 7, so that the elastic member 7 bears a larger load for a long time, and the service life of the elastic member 7 is easily shortened. However, under the action of the stop member 8, when the elastic member 7 forces the outer module 411 on the side close to the pouring opening 100 to move away from the forming cavity, the stop member 8 can limit the outer module 411 to continue rotating, so that the weight of the outer module 411 is prevented from acting on the elastic member 7, and the service life of the elastic member 7 is prolonged.

Referring to fig. 8, in some embodiments of the present application, the stopper 8 includes a fixing frame 81, a stopper rod 82, and a connection arm 83; the fixing frame 81 is arranged on the outer module 411 close to one side of the end die 5, and the stop rod 82 is horizontally arranged on the fixing frame 81; the connecting arm 83 is disposed on the outer module 411 near the pouring opening 100, and when the outer module 411 rotates away from the molding cavity until the connecting arm 83 contacts the stop lever 82, the outer module 411 is limited to continue rotating. When the outer module 411 rotates away from the molding cavity, the connecting arm 83 on the outer module 411 will also rotate until the connecting arm 83 rotates to contact with the corresponding stop lever 82 (as shown in fig. 9 to 10), and the stop lever 82 can limit the outer module 411 to rotate.

Referring to fig. 8, in some embodiments of the present application, a mounting hole 811 is formed in the fixing frame 81, and the stopper rod 82 is detachably disposed in the mounting hole 811; the connecting arm 83 is horizontally penetrated with a jack 831 for fitting the stopper rod 82, and a movement locus of the jack 831 rotating with the connecting arm 83 passes through an axis of the mounting hole 811. When the stopper rod 82 is inserted into the mounting hole 811, the corresponding outer module 411 can be restricted from rotating when the connection arm 83 rotates to contact with the stopper rod 82 (as shown in fig. 9 and 10). When the outer module 411 is rotated until the insertion hole 831 of the connecting arm 83 of the outer module 411 is aligned with the mounting hole 811, and then the stop rod 82 is sequentially inserted into the insertion hole 831 and the mounting hole 811 (as shown in fig. 9 and 11), two adjacent outer modules 411 can be locked.

Referring to fig. 4 and 5, in some embodiments of the present application, the tie channel jacking mold further includes an attached vibrator 9, and the attached vibrator 9 is disposed on the inner mold 3 and/or the outer mold 4. Compared with a manually operated plug-in vibrator, the attached vibrator does not need manual operation. In addition, when the attached vibrator 9 is provided on the inner mold 3, the occupied space of the mold is not increased.

Referring to fig. 6, 12 and 13, in some embodiments of the present application, when the central angle of the segment is greater than 180 °, the inner mold 3 includes an upper mold body 31 and two lower mold bodies 32; the upper die body 31 is provided slidably in the bottom die 1 in the up-down direction (the up-down direction refers to the up-down direction of the drawing sheet in fig. 17), and both the lower die bodies 32 are provided slidably in the bottom die 1 in the left-right direction (the left-right direction refers to the left-right direction of the drawing sheet in fig. 17). When the central angle of the pipe piece is larger than 180 degrees, if the inner side die 3 is of an integral structure, the pipe piece can limit the inner side die 3 to slide up and down. However, as shown in fig. 17, when the inner mold 3 includes the upper mold body 31 and the two lower mold bodies 32, at the time of demolding, the two lower mold bodies 32 are controlled to slide in the left-right direction to provide a sufficient space for the downward sliding of the upper mold body 31, and then the upper mold body 31 is controlled to slide downward, thereby completing demolding. Similarly, during mold closing, the upper mold body 31 slides upward, and then the two lower mold bodies 32 slide backward in the left-right direction, thereby completing mold closing.

The present application does not limit the manner of mounting the upper mold body 31 to slide up and down and the lower mold body 32 to slide left and right, and for example, as shown in fig. 4, 5, and 13 to 16, a slide rail 400 is provided on the bottom mold 1 in the up-down and left-right directions, the rollers 600 on the upper mold body 31 are connected to the slide rail 400 provided in the up-down direction in a up-down sliding manner, and the rollers 600 on the lower mold body 32 are connected to the slide rail 400 provided in the left-right direction in a left-right sliding manner; meanwhile, screw driving mechanisms 500 are respectively arranged between the upper die body 31 and the bottom die 1 and between the lower die body 32 and the bottom die 1, and the screw driving mechanisms 500 ensure that the rollers 600 are not separated from the slide rail 400 on one hand, and on the other hand, the screw driving mechanisms 500 can be rotated to drive the upper die body 31 to slide up and down or drive the lower die body 32 to slide left and right.

In some embodiments of the present application, when the central angle of the segment is less than or equal to 180 °, the inner mold 3 is slidably disposed on the bottom mold 1. When the central angle of the duct piece is smaller than or equal to 180 degrees, the inner side die 3 is directly arranged on the bottom die 1 in a vertically sliding manner, and at the moment, the inner side die 3 only needs to slide upwards or downwards no matter the die is closed or released, so that the inner side die 3 does not need to be completely detached, and the die closing and releasing efficiency of the inner side die 3 is improved. The manner of vertically sliding the inner mold 3 may be the same as the manner of vertically sliding the upper mold 31.

When the vertical (sectional type) pouring mode is adopted, open concrete feeding can be realized, the feeding speed of concrete is improved by more than 50%, and the open feeding port is more beneficial to sectional pouring and tamping; the water collecting surface is arranged on the outer side of the duct piece, the tightness of the splicing part of the duct piece cannot be affected, the whole width of the duct piece is more accurate, and the flatness of the pushing surface is strictly ensured. Meanwhile, the horizontal demolding can be realized by combining a turnover type mold assembling form, the mold assembling is more convenient and safe, and the manpower and site configuration are saved. According to practical production experimental verification, the connecting channel jacking pipe die can greatly shorten the construction period and save the construction cost. Through production practical tests, the casting construction period of one duct piece is reduced by about 40%, and the overall cost is reduced by about 20%.

The foregoing has outlined the basic principles, main features and advantages of the present application. It will be appreciated by persons skilled in the art that the present application is not limited to the embodiments described above, and that the embodiments and descriptions described herein are merely illustrative of the principles of the present application, and that various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of protection of the present application is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a connecting channel pipe jacking mould which is characterized in that, including base, die block, top mould, interior side mould, outside mould and two end moulds, the die block, the top mould, interior side mould, outside mould and two end moulds splice each other and form the shaping chamber that is used for shaping the section of jurisdiction between; the outer die comprises two symmetrically arranged outer die bodies, and a pouring opening is formed between the two outer die bodies; the base is rotatably arranged on the bottom die;

after the die is closed, the bottom die is rotated upwards by 90 degrees, so that the bottom die and the top die are both located on the base, and the pouring opening faces upwards; before demolding, the bottom die is rotated downwards by 90 degrees, so that the bottom die falls on the ground, and the top die faces upwards.

2. The tie-channel jacking die of claim 1, wherein said outer die body includes at least two of said outer die pieces; when concrete is poured, the outer modules are spliced sequentially from bottom to top, so that sectional pouring of the duct piece is realized.

3. The tie-channel jacking die of claim 2, wherein adjacent ones of said outer die blocks are rotatably connected.

4. The tie-channel jacking die of claim 3, further comprising an elastic member disposed between adjacent two of said outer die blocks, said elastic member being adapted to urge said outer die block on a side adjacent said pouring port to rotate in a direction away from said molding cavity.

5. The tie-channel jacking die of claim 4, further comprising a stop disposed between adjacent two of said outer die blocks; the stop is used for limiting the outer mold block to continue rotating after the elastic piece forces the outer mold block close to one side of the pouring opening to move away from the forming cavity.

6. The tie-channel jacking die of claim 5, wherein said stop comprises a mount, a stop rod, and a connecting arm; the fixed frame is arranged on the outer module close to one side of the end die, and the stop rod is horizontally arranged on the fixed frame; the connecting arm is arranged on the outer module close to one side of the pouring opening, and when the outer module rotates in the direction away from the forming cavity until the connecting arm contacts with the stop rod, the outer module is limited to continue rotating.

7. The connecting channel jacking die as claimed in claim 6, wherein the fixing frame is provided with a mounting hole, and the stop lever is detachably arranged in the mounting hole; the connecting arm horizontally penetrates through the jack for adapting to the stop rod, and the jack passes through the axis of the mounting hole along with the rotating motion track of the connecting arm.

8. The tie-channel jacking die of claim 1, further comprising an attached vibrator disposed on said inner die and/or said outer die.

9. The tie-channel jacking die as claimed in any one of claims 1 to 8, wherein said inner die is slidably disposed up and down on said bottom die when a central angle of said segment is 180 ° or less.

10. The tie-channel jacking die of any one of claims 1 to 8, wherein said inner die includes an upper die body and two lower die bodies when the central angle of said segment is greater than 180 °. The upper die body can be arranged on the bottom die in a vertical sliding mode, and the two lower die bodies can be arranged on the bottom die in a horizontal sliding mode.

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