CN112454644A

CN112454644A - Prestress movable splicing pedestal

Info

Publication number: CN112454644A
Application number: CN202011436570.7A
Authority: CN
Inventors: 谢少明; 冉贤佐
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-03-09

Abstract

The invention belongs to the technical field of precast beam bases, and particularly relates to a prestress movable splicing pedestal which comprises a head pedestal main body and a tail pedestal main body, wherein the head pedestal main body and the tail pedestal main body are arranged side by side along the length direction and can be detachably connected through a connecting device, and at least two walking devices which are arranged at intervals along the length direction and play a role in convenient movement are arranged at the bottoms of the head pedestal main body and the tail pedestal main body. When the prefabricated beam splicing device is used, the head pedestal main body and the tail pedestal main body are connected together through the connecting device, so that the length of the spliced pedestal is determined according to the actual use requirement, and the prefabricated beam splicing device can be suitable for the production of prefabricated beams with different specifications and sizes; in addition, the pedestal that splices into can utilize the running gear that the bottom of prelude pedestal main part and afterbody pedestal main part set up to promote the pedestal and walk along the track of setting for, and the transform of adaptation production place is nimble, and the production place later stage can normally carry out the multiple tillage, reduces the waste of resource.

Description

Prestress movable splicing pedestal

Technical Field

The invention belongs to the technical field of precast beam bases, and particularly relates to a movable prestressed splicing pedestal.

Background

The production of the precast girders is performed on precast girder pedestals. Traditional precast beam pedestal is through digging out a foundation ditch under the ground level to at this foundation ditch construction concrete component, can form this precast beam pedestal through the concrete component of being under construction.

This kind of traditional precast beam pedestal all is fixed subaerial, can't remove, can't adapt to at any time to the transform in production place to bring very big degree of difficulty to the double-tillage in later stage production place. Simultaneously, its specification of this kind of traditional precast beam pedestal of current this kind and size are single, if the production of the precast beam of the different models of adaptation is adjusted, only can dig absolutely through the precast beam pedestal that has now, perhaps continue to pour concrete member and splice, operate all extremely difficultly to can also cause the huge waste of resource.

Disclosure of Invention

The invention aims to provide a prestress movable splicing pedestal, and aims to solve the technical problems that a prefabricated beam pedestal in the prior art cannot adapt to the change of production places and is single in production function.

In order to achieve the above object, an embodiment of the present invention provides a prestressed mobile splicing pedestal, which includes a head pedestal main body and a tail pedestal main body, wherein the head pedestal main body and the tail pedestal main body are arranged side by side along a length direction and can be detachably connected through a connecting device, and at least two walking devices which are arranged at intervals along the length direction and have a function of convenient movement are respectively disposed at bottoms of the head pedestal main body and the tail pedestal main body.

Optionally, the connecting device includes two connecting steel plates and four steel plate grooves, two side faces of the adjacent end of the head pedestal main body and the tail pedestal main body are respectively provided with one steel plate groove, two steel plate grooves of the adjacent end side faces of the head pedestal main body and the tail pedestal main body jointly accommodate one connecting steel plate, and the connecting steel plates are locked on the steel plate grooves through a plurality of fasteners.

Optionally, the leading pedestal body and the trailing pedestal body are both formed by casting concrete on a steel bar framework and anchoring, and the steel plate groove is welded with the steel bar framework;

the fastener comprises a sleeve nut and a bolt, the sleeve nut is welded on the steel plate groove, and the bolt penetrates through the connecting steel plate and is fixedly connected with the sleeve nut.

Optionally, the steel plate groove comprises a first L-shaped block, a second L-shaped block and a groove bottom connecting block, the first L-shaped block and the second L-shaped block are respectively connected to two opposite ends of the groove bottom connecting block and are symmetrically arranged, the first L-shaped block, the second L-shaped block and the groove bottom connecting block are jointly surrounded to form an accommodating cavity, the sleeve nut is welded on the groove bottom connecting block, the connecting steel plate is accommodated in the accommodating cavity and attached to the groove bottom connecting plate, and the sleeve nut is welded on the groove bottom connecting block.

Optionally, running gear includes steel plate frame, walking wheel and wheel carrier, the prelude pedestal main part with the bottom of afterbody pedestal main part all is provided with the race, the steel plate frame correspond set up in within the race and with steel bar framework welds and through adding the reinforcing bar anchor in the concrete, the wheel carrier is fixed in through the fastener installation on the steel plate frame, the walking wheel rotationally install in on the wheel carrier, just the bottom of walking wheel exposes prelude pedestal main part or outside the bottom face of afterbody pedestal main part.

Optionally, the fastener comprises a sleeve nut and a bolt, the sleeve nut is welded on the steel plate frame, and the bolt penetrates through the wheel frame and is fixedly connected with the sleeve nut;

the steel plate frame is including being horizontal piece and the vertical piece that the L font was arranged, vertical piece set up in the side of race and with the reinforcing bar framework welding, horizontal piece set up in the top surface of race and with the reinforcing bar framework welding, collet nut with horizontal piece welded fastening, the fastener passes the wheel carrier with behind the horizontal piece with collet nut is connected fixedly.

Optionally, the portable concatenation pedestal of prestressing force still includes at least one middle part pedestal main part, each middle part pedestal main part all set up in between the prelude pedestal main part with the afterbody pedestal main part, just middle part pedestal main part with between the middle part pedestal main part, middle part pedestal main part with between the prelude pedestal main part, or middle part pedestal main part with all can realize dismantling the connection through connecting device between the afterbody pedestal main part.

Optionally, a plurality of galvanized metal corrugated pipes arranged in the length direction are arranged in the head pedestal main body, the tail pedestal main body and the middle pedestal main body, a plurality of steel strands are arranged in each galvanized metal corrugated pipe, and cement slurry for fixing each steel strand is injected into each galvanized metal corrugated pipe through a grouting machine.

Optionally, three galvanized metal corrugated pipes are arranged in the head pedestal main body, the tail pedestal main body and the middle pedestal main body in a triangular mode along the height direction, one galvanized metal corrugated pipe is located above the other two galvanized metal corrugated pipes are located below the other two galvanized metal corrugated pipes.

Optionally, the cross section of the upper galvanized metal corrugated pipe is in a flat circular shape, and the cross sections of the lower two galvanized metal corrugated pipes are in a circular shape; three strands of steel stranded wires which are arranged side by side along the transverse direction are arranged in the galvanized metal corrugated pipe with the flat and round section, and three strands of steel stranded wires which are arranged in a triangular shape are arranged in the galvanized metal corrugated pipe with the round section.

One or more technical solutions in the prestressed mobile splicing pedestal provided by the embodiment of the present invention at least have one of the following technical effects: when the prefabricated beam splicing device is used, the head pedestal main body and the tail pedestal main body can be connected together through the connecting device, so that the length of the spliced pedestal can be determined according to the actual use requirement, and the prefabricated beam splicing device can be suitable for the production of prefabricated beams with different specifications and sizes; in addition, the pedestal that splices into can utilize the running gear that the bottom of prelude pedestal main part and afterbody pedestal main part set up to promote the pedestal and walk along the track of setting for, and the transform of adaptation production place is nimble, and the production place later stage can normally carry out the multiple tillage, reduces the waste of resource.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in 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 based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of an embodiment of a prestressed mobile splicing pedestal provided by the present invention.

Fig. 2 is a schematic structural diagram of another embodiment of the prestressed mobile splicing table provided by the invention.

Fig. 3 is a schematic structural diagram of the header pedestal main body according to the present invention.

Fig. 4 is a structural schematic diagram of a steel bar structure of the header pedestal body according to the present invention.

Fig. 5 is a sectional view of the head stage body according to the present invention at a position corresponding to the connecting means.

Fig. 6 is a sectional view of the head stage body according to the present invention at a position corresponding to the traveling device.

Wherein, in the figures, the respective reference numerals:

10-head pedestal main body 11-wedge block preformed groove 12-hoisting rope perforation

13-reinforcing steel bar framework 14-wheel groove 15-galvanized metal corrugated pipe

16-steel strand 20-tail pedestal main body 30-middle pedestal main body

40-connecting steel plate 50-steel plate groove 51-first L-shaped block

52-second L-shaped block 53-groove bottom connecting block 54-accommodating cavity

60-steel plate frame 61-transverse block 62-vertical block

Connecting device of 70-traveling wheel 80-wheel carrier 100

200-running gear 300-track 400-lateral rubber gasket

500-bottom rubber gasket 600-fastener 601-sleeve nut

602-bolt.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-6 are exemplary and intended to be used to illustrate embodiments of the invention, and should not be construed as limiting the invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In an embodiment of the present invention, as shown in fig. 1 to 2, a prestressed mobile splicing pedestal is provided, which includes a head pedestal main body 10 and a tail pedestal main body 20, the head pedestal main body 10 and the tail pedestal main body 20 are arranged side by side along a length direction and can be detachably connected through a connecting device 100, and at least two walking devices 200 which are arranged at intervals along the length direction and have a function of facilitating movement are respectively disposed at the bottoms of the head pedestal main body 10 and the tail pedestal main body 20.

In the prestressed mobile splicing pedestal provided by the embodiment of the invention, when in use, the head pedestal main body 10 and the tail pedestal main body 20 can be connected together through the connecting device 100, so that the length of the spliced pedestal can be determined according to the actual use requirement, and the production of precast beams with different specifications and sizes can be adapted; in addition, the pedestals that are spliced can utilize the running gear 200 arranged at the bottom of the head pedestal main body 10 and the tail pedestal main body 20 to push the pedestals to run along the set track, so that the pedestals are flexibly suitable for the change of production places, the post-production of the production places can be normally carried out, and the waste of resources is reduced.

In another embodiment of the present invention, as shown in fig. 5, the connection device 100 includes two connection steel plates 40 and four steel plate grooves 50, two side surfaces of the adjacent ends of the head portion pedestal body 10 and the tail portion pedestal body 20 are respectively provided with one steel plate groove 50, two steel plate grooves 50 of the side surfaces of the adjacent ends of the head portion pedestal body 10 and the tail portion pedestal body 20 are used for accommodating one connection steel plate 40 together, and the connection steel plate 40 is locked to the steel plate grooves 50 by a plurality of fasteners 600. Specifically, the connection of the head table main body 10 and the tail table main body 20 is achieved by receiving a connecting steel plate 40 in common in two of the steel plate grooves 50 of the adjacent ends and the adjacent sides of the head table main body 10 and the tail table main body 20, and then locking the connecting steel plate 40 in the steel plate grooves 50 by using the fasteners 600. When disassembly is subsequently required, the connection between the head base body 10 and the tail base body 20 can be released by loosening the fastener 600 and taking out the connecting steel plate 40, and the disassembly and assembly operations are very convenient.

In another embodiment of the present invention, as shown in fig. 4, the leading table base body 10 and the trailing table base body 20 are both formed by casting concrete on the steel reinforcement structure 13 and the steel plate groove 50 is welded to the steel reinforcement structure 13 and anchored in the concrete by adding welding steel bars. The steel plate groove 50 thus set is formed with the head mount body 10 and the tail mount body 20, and the connection is firm, and the stability and reliability can be sufficiently secured.

In another embodiment of the present invention, as shown in fig. 5, the fastening member 600 includes a sleeve nut 601 and a bolt 602, the sleeve nut 601 is welded to the steel plate groove 50, and the bolt 602 passes through the connecting steel plate 40 and is fixedly connected to the sleeve nut 601. The sleeve nut 601 extends into the concrete, and the structure is stable. After the bolt 602 passes through the hole on the connecting steel plate 40, it is screwed and locked with the sleeve nut 601, so that the connecting steel plate 40 and the steel plate groove 50 can be connected and fixed.

In another embodiment of the present invention, as shown in fig. 5, the steel plate groove 50 includes a first L-shaped block 51, a second L-shaped block 52 and a groove bottom connection block 53, the first L-shaped block 51 and the second L-shaped block 52 are respectively connected to two opposite ends of the groove bottom connection block 53 and are symmetrically arranged, the first L-shaped block 51, the second L-shaped block 52 and the groove bottom connection block 53 together enclose to form an accommodation cavity 54, the sleeve nut 601 is welded on the groove bottom connection block 53, the connection steel plate 40 is accommodated in the accommodation cavity 54 and attached to the groove bottom connection block, and the sleeve nut 601 is welded on the groove bottom connection block 53. Preferably, the first L-shaped block 51, the second L-shaped block 52 and the groove bottom connecting block 53 are integrally formed to make the steel plate groove 50. The containing cavity 54 formed by the middle part of the steel plate groove 50 in a concave manner is used for containing the connecting steel plate 40, so that the connecting steel plate 40 can be ensured to be contained, positioned and installed, and the bolt 602 can be conveniently locked in the sleeve nut 601 after penetrating through the steel plate.

In another embodiment of the present invention, as shown in fig. 5, the depth of the receiving cavity 54 is greater than the thickness of the connecting steel plate 40. The design can ensure that the connecting steel plate 40 is not protruded out of the side parts of the first L-shaped block 51 and the second L-shaped block 52 when being accommodated in the accommodating cavity 54, so as to prevent foreign objects from easily contacting the connecting steel plate 40.

In another embodiment of the present invention, as shown in fig. 3, a side rubber gasket 400 is provided between the adjacent ends of the head mount body 10 and the tail mount body 20. The side rubber gasket 400 is pressed against each other by the leading table base body 10 and the tail table base body 20, thereby preventing hard contact between the leading table base body 10 and the tail table base body 20 and reducing physical damage to the leading table base body 10 and the tail table base body 20.

In another embodiment of the present invention, as shown in fig. 6, the traveling device 200 includes a steel plate frame 60, traveling wheels 70 and a wheel frame 80, the bottom of each of the head pedestal main body 10 and the tail pedestal main body 20 is provided with a wheel groove 14, the steel plate frame 60 is correspondingly disposed in the wheel groove 14 and welded to the reinforcement framework 13 and anchored in concrete by welding reinforcement, the wheel frame 80 is fixed on the steel plate frame 60 by a fastener 600, the traveling wheels 70 are rotatably mounted on the wheel frame 80, and the bottom ends of the traveling wheels 70 are exposed out of the bottom end surface of the head pedestal main body 10 or the tail pedestal main body 20. Specifically, after steel plate frame 60 and steel bar framework 13 welded fastening, it is stable to can supply the installation of wheel carrier 80, walking wheel 70 rotationally installs on wheel carrier 80 again, like this, through the rotation of walking wheel 70, can drive the first part pedestal main part 10 with the removal of afterbody pedestal main part 20, generally, the track that sets up the looks adaptation supplies to cooperate with walking wheel 70, makes walking wheel 70 can be along the track line. Therefore, the head pedestal main body 10 and the tail pedestal main body 20 can be pushed very conveniently to flexibly adapt to the change of a workplace, the stacking is convenient, the occupied area is small, the whole field area is general without the limitation of the beam length, and the field is saved.

In another embodiment of the present invention, as shown in fig. 6, the wheel grooves 14 are provided at both side positions of the bottom of the head mount body 10 and the tail mount body 20. One running gear 200 is provided for each wheel groove 14, so that the running gears 200 can be symmetrically provided on the opposite sides of the bottom portions of the head stage base body 10 and the tail stage base body 20, and the head stage base body 10 and the tail stage base body 20 are supported in a balanced manner, thereby ensuring that the head stage base body 10 and the tail stage base body 20 are more stable and reliable in moving and running.

In another embodiment of the present invention, as shown in fig. 6, the fastening member 600 includes a sleeve nut 601 and a bolt 602, the sleeve nut 601 is welded to the steel plate frame 60, and the bolt 602 passes through the wheel frame 80 and is fixedly connected to the sleeve nut 601. Specifically, the collet nut 601 extends into the concrete, and the structure is stable. After the bolt 602 passes through the hole on the wheel frame 80, it is screwed and connected with the sleeve nut 601, so that the wheel frame 80 and the steel plate frame 60 can be connected and fixed.

In another embodiment of the present invention, as shown in fig. 6, the steel plate frame 60 includes a transverse block 61 and a vertical block 62 arranged in an L shape, the vertical block 62 is disposed at a side of the wheel groove 14 and welded to the reinforcement structure 13, the transverse block 61 is disposed at a top of the wheel groove 14 and welded to the reinforcement structure 13, the sleeve nut 601 is welded and fixed to the transverse block 61, and the fastener 600 passes through the wheel frame 80 and the transverse block 61 and then is connected and fixed to the sleeve nut 601. Specifically, the transverse block 61 and the vertical block 62 are integrally formed, the transverse block 61 can be supported by the vertical block 62, the transverse block 61 is welded to the reinforcement framework 13 on one hand, and the sleeve nut 601 is welded and fixed on the other hand, so that the fastener 600 can be fixed to the sleeve nut 601 in a threaded connection after passing through the wheel frame 80 and the transverse block 61. Thereby ensuring stability of the wheel frame 80 after installation.

In another embodiment of the present invention, as shown in fig. 6, a bottom rubber pad 500 is disposed between the wheel frame 80 and the lateral block 61. Specifically, the bottom rubber pad 500 prevents the wheel frame 80 from being damaged due to hard contact with the transverse block 61, and a steel plate may be additionally used for adjustment if the pre-camber height needs to be adjusted finely.

In another embodiment of the present invention, as shown in fig. 2, the prestressed mobile splicing table further includes at least one middle table body 30, each middle table body 30 is disposed between the head table body 10 and the tail table body 20, and the detachable connection between the middle table body 30 and the middle table body 30, between the middle table body 30 and the head table body 10, or between the middle table body 30 and the tail table body 20 can be realized by a connection device 100. Specifically, the arrangement of the center pedestal main body 30 can increase the length of the entire pedestal, and the number of the center pedestal main bodies 30 can be selected according to actual needs. The connection between the added middle stage base bodies 30, the head stage base bodies 10, or the tail stage base bodies 20 is detachable by the connecting device 100, so that the assembly and disassembly are convenient.

In another embodiment of the present invention, as shown in fig. 5, a plurality of galvanized metal corrugated pipes 15 are arranged in the length direction in each of the head pedestal main body 10, the tail pedestal main body 20 and the middle pedestal main body 30, a plurality of steel strands 16 are arranged in each of the galvanized metal corrugated pipes 15, and cement slurry for fixing each of the steel strands 16 is injected into each of the galvanized metal corrugated pipes 15 through a grouting machine. Specifically, the galvanized metal corrugated pipe 15 and the steel strand 16 disposed therein may increase the prestress of the pedestal, and the cement slurry may ensure that the steel strand 16 is fixed within the galvanized metal corrugated pipe 15. Structural design like this has realized the structural strength of reinforcing pedestal to can compress the concrete cross section of pedestal, reduce the working face, so traditional precast beam pedestal has reduced the volume under the condition that reaches equal intensity relatively.

In another embodiment of the present invention, as shown in fig. 5, three galvanized metal corrugated pipes 15 are disposed in each of the head pedestal main body 10, the tail pedestal main body 20, and the middle pedestal main body 30, the three galvanized metal corrugated pipes 15 are arranged in a triangular shape along the height direction, one galvanized metal corrugated pipe 15 is located above, and the other two galvanized metal corrugated pipes 15 are located below. Specifically, the three galvanized metal corrugated pipes 15 arranged in a triangular shape are uniformly dispersed in the head pedestal main body 10, the tail pedestal main body 20, and the middle pedestal main body 30, so that the strength of the head pedestal main body 10, the tail pedestal main body 20, and the middle pedestal main body 30 can be balanced, sufficient strength at each position can be ensured as much as possible, and the quality of the product can be ensured.

In another embodiment of the present invention, as shown in fig. 5, the cross section of the upper one of the corrugated galvanized metal pipes 15 is flat and circular, and the cross sections of the lower two of the corrugated galvanized metal pipes 15 are circular. Specifically, the thickness of the upper position of the pedestal is small, so that the galvanized metal corrugated pipe 15 with a flat and round cross section can be arranged, the thickness of the lower position of the pedestal is large, so that the galvanized metal corrugated pipe 15 with a round cross section can be arranged, so that the galvanized metal corrugated pipes 15 can be reasonably arranged, and the strength of the pedestal is balanced.

In another embodiment of the present invention, as shown in fig. 5, three strands of steel strands 16 are arranged side by side in the transverse direction inside the galvanized corrugated metal pipe 15 with a flat and round cross section. Specifically, the three steel strands 16 are transversely arranged in the galvanized metal corrugated pipe 15 with the flat and round cross section, so that the three steel strands 16 can be reasonably distributed, and the strength of the pedestal can be increased.

In another embodiment of the present invention, as shown in fig. 5, three strands of steel strands 16 are arranged in a triangular shape inside the galvanized corrugated metal pipe 15 having a circular cross section. Specifically, the three steel strands 16 arranged in a triangular shape are arranged in the galvanized metal corrugated pipe 15 with a circular cross section, so that the three steel strands 16 can be reasonably arranged, and the strength of the pedestal can be increased.

In another embodiment of the present invention, as shown in fig. 1, the top of each of the head pedestal body 10 and the tail pedestal body 20 is provided with a wedge block pre-groove 11, and the wedge block pre-groove 11 is located at a position away from the end where the head pedestal body 10 and the tail pedestal body 20 are adjacent to each other. In particular, the wedge block preformed groove 11 is a sinking groove structure, and an auxiliary component can be arranged at the position to adjust the height position of the precast beam on the upper portion of the wedge block preformed groove.

In another embodiment of the present invention, as shown in fig. 1, each of the head stage main body 10, the middle stage main body 30 and the tail stage main body 20 is provided with a hoisting rope penetration hole 12 penetrating both ends in the width direction thereof, and the hoisting rope penetration hole 12 is located at a position away from the end where the head stage main body 10 and the tail stage main body 20 are adjacent to each other. Specifically, the movable steel plate is established at hoist rope perforation 12 top, and the setting of hoist rope perforation 12 can supply the hoist rope to wear to establish, later through mentioning the hoist rope, can hang open precast beam, lay when prefabricating next slice precast beam again and do the die block can.

Further, a plurality of round holes are arranged below 50cm of the table top of the head pedestal main body 10, the middle pedestal main body 30 and the tail pedestal main body 20, and are used for fastening steel mold penetrating screws at two bottom sides of the beam.

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 invention, 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

1. The utility model provides a portable concatenation pedestal of prestressing force which characterized in that: including prelude pedestal main part and afterbody pedestal main part, prelude pedestal main part with arrange side by side and can realize dismantling the connection through connecting device along length direction between the afterbody pedestal main part, prelude pedestal main part with the bottom of afterbody pedestal main part all is provided with at least two and arranges and play the running gear who makes things convenient for the removal effect along length direction interval.

2. The prestressed mobile splice stand of claim 1, wherein: the connecting device comprises two connecting steel plates and four steel plate grooves, two side faces of adjacent ends of the head pedestal main body and the tail pedestal main body are respectively provided with one steel plate groove, the two steel plate grooves on the side faces of the adjacent ends of the head pedestal main body and the tail pedestal main body jointly accommodate one connecting steel plate, and the connecting steel plates are locked on the steel plate grooves through a plurality of fasteners.

3. The prestressed mobile splice stand of claim 2, wherein: the head pedestal main body and the tail pedestal main body are both formed by pouring concrete on a steel bar framework and anchoring, and the steel plate groove is welded with the steel bar framework;

4. The prestressed mobile splice stand of claim 3, wherein: the steel plate groove comprises a first L-shaped block, a second L-shaped block and a groove bottom connecting block, the first L-shaped block and the second L-shaped block are respectively connected to two opposite ends of the groove bottom connecting block and are symmetrically arranged, the first L-shaped block, the second L-shaped block and the groove bottom connecting block are jointly surrounded to form an accommodating cavity, a sleeve nut is welded on the groove bottom connecting block, the connecting steel plate is accommodated in the accommodating cavity and attached to the groove bottom connecting plate, and the sleeve nut is welded on the groove bottom connecting block.

5. The prestressed mobile splice stand of claim 3, wherein: running gear includes steel plate frame, walking wheel and wheel carrier, the prelude pedestal main part with the bottom of afterbody pedestal main part all is provided with the race, the steel plate frame correspond set up in within the race and with the steel bar framework welding is through adding the reinforcing bar anchor within the concrete, the wheel carrier is fixed in through the fastener installation on the steel plate frame, the walking wheel rotationally install in on the wheel carrier, just the bottom of walking wheel exposes prelude pedestal main part or outside the bottom face of afterbody pedestal main part.

6. The prestressed mobile splice stand of claim 5, wherein: the fastening piece comprises a sleeve nut and a bolt, the sleeve nut is welded on the steel plate frame, and the bolt penetrates through the wheel frame and is fixedly connected with the sleeve nut;

7. The prestressed mobile splicing pedestal of any one of claims 1 to 6, wherein: the portable concatenation pedestal of prestressing force still includes at least one middle part pedestal main part, each middle part pedestal main part all set up in prelude pedestal main part with between the afterbody pedestal main part, just middle part pedestal main part with between the middle part pedestal main part with between the prelude pedestal main part, perhaps middle part pedestal main part with all can realize dismantling the connection through connecting device between the afterbody pedestal main part.

8. The prestressed mobile splice stand of claim 7, wherein: the inside of the head pedestal main body, the inside of the tail pedestal main body and the inside of the middle pedestal main body are respectively provided with a plurality of galvanized metal corrugated pipes which are arranged along the length direction, a plurality of steel strands are arranged in each galvanized metal corrugated pipe, and cement slurry for fixing each steel strand is injected into each galvanized metal corrugated pipe through a grouting machine.

9. The prestressed mobile splice stand of claim 8, wherein: the utility model discloses a zinc-plated metal bellows, including the head portion pedestal main part, the afterbody pedestal main part with all be provided with three zinc-plated metal bellows within the middle part pedestal main part, it is three zinc-plated metal bellows is triangle-shaped along the direction of height and arranges, and one of them zinc-plated metal bellows is located the top, two in addition zinc-plated metal bellows is located the below.

10. The prestressed mobile splice stand of claim 9, wherein: the cross section of the upper galvanized metal corrugated pipe is in a flat circular shape, and the cross sections of the lower two galvanized metal corrugated pipes are in a circular shape; three strands of steel stranded wires which are arranged side by side along the transverse direction are arranged in the galvanized metal corrugated pipe with the flat and round section, and three strands of steel stranded wires which are arranged in a triangular shape are arranged in the galvanized metal corrugated pipe with the round section.