CN113550298A

CN113550298A - Prefabricated combined pile for medium and small bridges

Info

Publication number: CN113550298A
Application number: CN202110827590.5A
Authority: CN
Inventors: 付平; 张倩倩; 戴振华; 张苏; 钱优
Original assignee: Jiangsu Jiuju Construction Engineering Co Ltd
Current assignee: Jiangsu Jiuju Construction Engineering Co Ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2021-10-26
Anticipated expiration: 2041-07-21
Also published as: CN113550298B

Abstract

The invention relates to the field of bridge construction, in particular to a prefabricated combined pile for a medium and small bridge. It includes the precast pile, and the precast pile is vertical setting and is equipped with two relatively, is provided with the support column between two precast piles, slides along the horizontal direction on the support column and is connected with two locating pieces, is connected with the subassembly that slides that is used for driving two locating pieces and slides towards opposite direction on the support column. Be connected with two locking pieces along vertical sliding on the locating piece, be connected with the lifting unit who is used for driving two locking pieces and slides towards opposite direction on the locating piece, be connected with the linkage subassembly between subassembly and the lifting unit that slides, it has the locking groove to open respectively on two horizontal inner walls of constant head tank, two locking pieces respectively with two locking groove one-to-ones and the cooperation of pegging graft. This application has and consolidates the precast pile to improve the effect of precast pile's anti-seismic performance.

Description

Prefabricated combined pile for medium and small bridges

Technical Field

The invention relates to the field of bridge construction, in particular to a prefabricated combined pile for a medium and small bridge.

Background

With the development of social economy, bridge engineering also enters a rapid development stage, and the construction requirements are stricter and stricter in order to ensure the stability and safety of bridges. In the construction process of a bridge, a foundation pit is usually excavated, a precast pile is precast in the foundation pit, and a bearing platform is fixed at the top end of the precast pile and used for supporting the bridge.

At present, a Chinese patent with publication number CN206408639U discloses an assembled type steel reinforced concrete composite bridge, which comprises a prefabricated bearing platform, a prefabricated pile connected with the bottom end surface of the prefabricated bearing platform and a prefabricated pier column connected with the top end of the prefabricated bearing platform, wherein a steel beam layer, a prefabricated reinforced concrete layer and a pavement structure layer are sequentially fixed at the top end of the prefabricated pier column.

With respect to the related art in the above, the inventors consider that: the precast pile provides support for the precast pile cap, however, each precast pile is an independent structure, and adjacent precast piles are not constrained with each other, so that the seismic performance of the precast pile is lower.

Disclosure of Invention

In order to improve the anti-seismic performance of precast pile, this application provides a prefabricated combination pile of medium and small bridge.

The application provides a prefabricated composite pile of medium and small bridge adopts following technical scheme:

the utility model provides a well bridge prefabricated combined pile, including the precast pile, the precast pile is vertical setting and is equipped with two relatively, be provided with the support column between two precast piles, it is connected with two locating pieces to slide along the horizontal direction on the support column, be connected with the subassembly that slides that is used for driving two locating pieces to slide towards opposite direction on the support column, the constant head tank has been opened respectively to two lateral walls in opposite directions of precast pile, two locating pieces respectively with two constant head tank one-to-ones and the cooperation of pegging graft, be connected with the lifting unit that is used for driving two locking pieces to slide towards opposite direction on the locating piece, be connected with the linkage subassembly between subassembly and the lifting unit that slides, it has the locking groove to open respectively on two horizontal inner walls of constant head tank, two locking pieces respectively with two locking groove one-to-ones and the cooperation of pegging graft.

Through adopting above-mentioned technical scheme, utilize two locating pieces of subassembly drive that slide to keep away from the removal each other for in the locating piece inserted the constant head tank, the subassembly that slides simultaneously, linkage assembly, lifting unit linkage cooperation drive two locking blocks and keep away from each other and slide, make the locking block insert the locking inslot. Through mutually supporting of support column, locating piece, locking piece, subassembly, lifting unit, linkage subassembly that slides for retraining each other between two precast piles, reached and carried out reinforced (rfd) effect to the precast pile, thereby improved the anti-seismic performance of precast pile.

Optionally, the sliding assembly comprises a driving screw, the driving screw is horizontally arranged and is rotatably connected to the supporting column, two first thread sections with opposite thread turning directions are integrally formed on the driving screw, the two positioning blocks are in one-to-one correspondence with the two first thread sections respectively, and the positioning blocks are in threaded connection with the driving screw.

Through adopting above-mentioned technical scheme, when two locating pieces of needs drive slip towards opposite direction, rotate drive screw, because the screw thread of two first screw sections revolves to opposite, thereby drive screw drives two locating pieces and slides towards opposite direction.

Optionally, the lifting assembly comprises a lifting screw rod, the lifting screw rod is vertically arranged, the lifting screw rod is rotatably connected to the positioning block, two second thread sections with opposite thread turning directions are integrally formed on the lifting screw rod, the two locking blocks are in one-to-one correspondence with the two second thread sections respectively, the locking blocks are in threaded connection with the lifting screw rod, and the linkage assembly is used for linkage driving of the screw rod and the lifting screw rod.

Through adopting above-mentioned technical scheme, when two locking blocks of needs drive go up and down towards opposite direction, rotate the lifting screw rod, because the screw thread of two second screw sections revolves to opposite to the lifting screw rod drives two locking blocks and goes up and down towards opposite direction.

Optionally, the linkage assembly comprises a linkage worm wheel and a linkage worm, the linkage assembly is connected with a group of positioning blocks, the linkage worm is connected to the positioning blocks in a rotating mode, the linkage worm wheel is fixedly sleeved on the lifting screw rod, the linkage worm is meshed with the linkage worm wheel, a linkage rod is coaxially connected to the linkage worm, a slot is formed in the driving screw rod along the axis of the linkage rod, the linkage rod is inserted into the slot in a sliding mode, and the linkage rod and the cross section of the slot are polygonal.

By adopting the technical scheme, when the driving screw rod rotates, the driving screw rod drives the positioning block to move, the positioning block drives the driving worm to move, and the driving worm drives the linkage rod to move in the slot. Meanwhile, the driving screw drives the linkage rod to rotate, the linkage rod drives the driving worm to rotate, the driving worm drives the driving worm wheel to rotate, the driving worm wheel drives the lifting screw to rotate, and the effect of linkage of the driving screw and the lifting screw is achieved.

Optionally, two opposite sliding grooves are formed in the supporting column in the horizontal direction, the length direction of each sliding groove points to the precast pile, the positioning blocks correspond to the sliding grooves one to one, and sliding rods sliding in the sliding grooves are connected to the positioning blocks.

Through adopting above-mentioned technical scheme, slide bar and spout sliding fit have played the effect of direction to the sliding of locating piece, have improved the stability when locating piece removes.

Optionally, the positioning block is vertically provided with two lifting grooves which are oppositely arranged, the two locking blocks are respectively in one-to-one correspondence with the two lifting grooves, and the locking blocks are connected with lifting blocks which slide in the lifting grooves.

Through adopting above-mentioned technical scheme, elevator and lift groove sliding fit have played the effect of direction to the lift of locking piece to stability when having improved the locking piece and having gone up and down.

Optionally, the bottom of the support column is fixedly connected with an elastic member, and the elastic member is extruded between the bottom wall of the support column and the bottom wall of the foundation pit.

Through adopting above-mentioned technical scheme, when taking place the earthquake, the elastic component plays the effect of buffering to the support column, has improved the stability of support column to improve the stability of locating piece and locking piece, and then improved the steadiness of precast pile.

Optionally, the diapire of support column has the holding tank along vertical opening, and the diapire fixedly connected with fixed column of foundation ditch, the fixed column wear to locate in the holding tank, and the outside of fixed column, support column in fixed column sliding fit are located to the elastic component cover.

Through adopting above-mentioned technical scheme, fixed column and support column sliding fit have improved stability when the support column goes up and down. Simultaneously, the fixed column provides support and direction for the flexible of elastic component to stability when having improved the elastic component and having stretched out and drawn back.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the mutual matching of the supporting columns, the positioning blocks, the locking blocks, the sliding assemblies, the lifting assemblies and the linkage assemblies, the two precast piles are constrained with each other, the effect of reinforcing the precast piles is achieved, and the seismic performance of the precast piles is improved;

2. the sliding assembly comprises a driving screw rod, so that the effect of driving the two positioning blocks to slide towards opposite directions is achieved;

3. the lifting assembly comprises a lifting screw rod, and the effect of driving the two locking blocks to slide towards opposite directions is achieved;

4. the linkage assembly comprises a linkage worm wheel and a linkage worm, and the linkage effect of the driving screw and the lifting screw is achieved through the mutual matching of the linkage worm wheel, the linkage worm and the linkage rod.

Drawings

Fig. 1 is a top view of a prefabricated composite pile for medium and small bridges according to an embodiment of the application.

Fig. 2 is a sectional view a-a in fig. 1.

Fig. 3 is a schematic structural diagram of a small and medium bridge prefabricated composite pile according to an embodiment of the application.

Fig. 4 is a schematic structural diagram of the lifting assembly and the sliding assembly according to the embodiment of the present application.

Fig. 5 is a schematic structural diagram of a locking block according to an embodiment of the present application.

Description of reference numerals:

1. prefabricating a pile; 11. positioning a groove; 12. a locking groove; 2. a support pillar; 21. accommodating grooves; 22. a support plate; 23. a chute; 3. an elastic member; 4. positioning blocks; 41. a first thread groove; 42. a slide bar; 43. positioning a plate; 44. mounting grooves; 45. a lifting groove; 5. a slipping component; 51. a drive screw; 52. a rotating wheel; 53. a slot; 6. a locking block; 61. a second thread groove; 62. a lifting block; 7. a lifting assembly; 71. a lifting screw; 8. a linkage assembly; 81. a linkage worm gear; 82. a linkage worm; 83. a linkage rod; 9. and (5) fixing the column.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a prefabricated combined pile for a medium and small bridge.

Referring to fig. 1 and 2, the prefabricated combined pile of the medium and small bridge comprises two prefabricated piles 1, wherein the two prefabricated piles 1 are vertically arranged and are oppositely arranged, and the two prefabricated piles 1 are fixed in a foundation pit. The relative lateral wall of two precast piles 1 is opened and is had constant head tank 11, and the horizontal roof and the horizontal diapire of constant head tank 11 all open and have locking groove 12.

Referring to fig. 2, be provided with support column 2 between two precast piles 1, support column 2 is vertical setting, and the bottom fixed connection elastic component 3 of support column 2, elastic component 3 are the pressure spring, and the extrusion of elastic component 3 is between the diapire of support column 2 and the diapire of foundation ditch. The roof of support column 2 slides along the horizontal direction and is connected with two locating pieces 4, is connected with two locating pieces of drive 4 on the support column 2 and slides subassembly 5, and the direction of sliding of two locating pieces 4 is opposite. The two positioning blocks 4 are respectively in one-to-one correspondence with the two positioning grooves 11 and are in splicing fit.

Referring to fig. 2, one side that two locating pieces 4 deviate from each other all is connected with locking block 6 along vertical sliding, and locking block 6 all slides on every locating piece 4 and is connected with two, and two locking blocks 6 are along vertical distribution. And the positioning block 4 is connected with a lifting assembly 7 for driving the two locking blocks 6 to lift towards opposite directions. The two locking blocks 6 are respectively in one-to-one correspondence and in insertion fit with the two locking grooves 12.

Utilize two locating pieces 4 of subassembly 5 drive that slide to keep away from each other and insert in corresponding constant head tank 11, the cooperation of subassembly 5, linkage subassembly 8, the linkage of lifting unit 7 that slide simultaneously drives two locking blocks 6 and keeps away from each other and slide for locking block 6 inserts in the locking groove 12 that corresponds. Through the cooperation of support column 2, locating piece 4, locking block 6, realized two precast pile 1's reinforcement to the anti-seismic performance of precast pile 1 has been improved.

When the earthquake happens, the elastic part 3 plays a role in buffering the supporting column 2, so that the stability of the supporting column 2 is improved, the stability of the positioning block 4 and the locking block 6 is improved, and the stability of the precast pile 1 is improved.

Referring to fig. 2, in order to improve the stability of elastic component 3 when flexible, fixedly connected with fixed column 9 in the foundation ditch, the diapire of support column 2 is opened along vertical has holding tank 21, and fixed column 9 wears to locate in holding tank 21. The support column 2 is in sliding fit with the fixed column 9, and the elastic piece 3 is sleeved on the outer side of the fixed column 9. Fixed column 9 provides the direction for elastic component 3 to stability when having improved elastic component 3 and stretching out and drawing back, fixed column 9 provides the direction for the lift of support column 2 simultaneously, and then stability when having improved support column 2 and going up and down.

Referring to fig. 2 and 3, the sliding assembly 5 includes a driving screw 51, the driving screw 51 is horizontally disposed, two supporting plates 22 are fixedly connected to the top wall of the supporting column 2, and the two supporting plates 22 are oppositely disposed. The driving screw 51 is inserted into the two support plates 22, and the driving screw 51 is rotatably connected with the support plates 22. The driving screw 51 is fixedly sleeved with a rotating wheel 52, and the rotating wheel 52 is positioned between the two supporting plates 22.

Referring to fig. 2 and 3, two first thread segments with opposite thread directions are integrally formed on the driving screw 51, and the two support plates 22 are located between the two first thread segments. The two positioning blocks 4 are respectively in one-to-one correspondence with the two first thread sections, the opposite sides of the two positioning blocks 4 are respectively provided with first thread grooves 41 along the horizontal direction, and the two first thread grooves 41 are in one-to-one correspondence with the two first thread sections and in thread fit with the two first thread sections.

The driving rotating wheel 52 rotates, the rotating wheel 52 drives the driving screw 51 to rotate, and the thread turning directions of the two first thread sections are opposite, so that the two positioning blocks 4 are driven to slide towards the directions away from each other, and the two positioning blocks 4 are conveniently inserted into the corresponding positioning grooves 11 respectively.

Referring to fig. 3 and 4, the top wall of the support column 2 is provided with two sliding grooves 23 along the horizontal direction, the two sliding grooves 23 are located on the same straight line, and the length direction of the sliding grooves 23 points to the precast pile 1. The bottom wall of the positioning block 4 is fixedly connected with slide bars 42, the two slide bars 42 are respectively in one-to-one correspondence with the two slide grooves 23, and the slide bars 42 slide in the slide grooves 23.

Referring to fig. 4, the sliding rod 42 is in sliding fit with the sliding groove 23, so that the stability of the positioning block 4 during sliding is improved. In addition, in order to reduce the possibility of the slide rod 42 escaping from the slide groove 23, the slide rod 42 and the slide groove 23 are both dovetail-shaped in cross section.

Referring to fig. 4, the lifting assembly 7 includes a lifting screw 71, and the lifting screw 71 is vertically disposed. Two locating plates 43 are fixedly connected to the side faces of the two locating blocks 4 which deviate from each other, the lifting screw 71 penetrates through the two locating plates 43, and the lifting screw 71 is rotatably connected to the two locating plates 43. Two second thread sections with opposite thread turning directions are integrally formed on the lifting screw rod 71, and the two positioning plates 43 are located between the two second thread sections. The opposite surfaces of the two locking blocks 6 are vertically provided with second thread grooves 61, and the two second thread grooves 61 correspond to the two second thread sections one by one and are in thread fit with the two second thread sections.

Referring to fig. 2 and 4, a set of linkage assemblies 8 is connected to each positioning block 4, and the linkage assemblies 8 are used for linking the driving screws 51 and the lifting screws 71. The linkage assembly 8 comprises a linkage worm wheel 81 and a linkage worm 82, the linkage worm wheel 81 is fixedly sleeved on the lifting screw rod 71, and the linkage worm wheel 81 is positioned between the two positioning plates 43. The side surfaces of the two positioning blocks 4 which are deviated from each other are respectively provided with a mounting groove 44, and the mounting grooves 44 are coaxially communicated with the first thread grooves 41. The linkage worm 82 is horizontally arranged, and one end of the linkage worm 82 is rotatably connected in the mounting groove 44 through a bearing.

Referring to fig. 2, a linkage rod 83 is coaxially fixed at the end of the linkage worm 82 extending into the mounting groove 44, slots 53 are coaxially formed in both end surfaces of the driving screw 51, and the two slots 53 are respectively in one-to-one correspondence and in insertion fit with the two linkage rods 83. The cross sections of the linkage rod 83 and the slot 53 are regular hexagons.

When the driving screw 51 rotates, the driving screw 51 drives the positioning block 4 to move, the positioning block 4 drives the locking block 6, the lifting screw 71, the driving worm wheel and the driving worm to move, and the driving worm drives the linkage rod 83 to move in the slot 53. Meanwhile, the driving screw 51 drives the linkage rod 83 to rotate, the linkage rod 83 drives the driving worm to rotate, the driving worm drives the driving worm wheel to rotate, the driving worm wheel drives the lifting screw 71 to rotate, the effect of linkage of the driving screw 51 and the lifting screw 71 is achieved, and therefore the locking block 6 can be conveniently inserted into the locking groove 12.

Referring to fig. 4 and 5, the side of the positioning block 4 close to the locking block 6 is vertically provided with two lifting grooves 45 which are oppositely arranged, the two lifting grooves 45 are positioned on the same straight line, the locking block 6 is connected with a lifting block 62, the two lifting blocks 62 are respectively in one-to-one correspondence with the two lifting grooves 45, and the lifting block 62 is in sliding fit with the lifting grooves 45, so that the stability of the locking block 6 during lifting is improved.

Referring to fig. 4 and 5, in order to reduce the possibility that the lifting block 62 is disengaged from the lifting groove 45, the lifting block 62 is a dovetail block, and the cross section of the lifting groove 45 is dovetail-shaped.

The implementation principle of the prefabricated combined pile of the middle and small bridge in the embodiment of the application is as follows: the driving rotating wheel 52 rotates, the rotating wheel 52 drives the driving screw 51 to rotate, and the thread turning directions of the two first thread sections are opposite, so that the two positioning blocks 4 are driven to slide towards the directions away from each other, and the two positioning blocks 4 are conveniently inserted into the corresponding positioning grooves 11 respectively. The positioning block 4 drives the locking block 6, the lifting screw 71, the driving worm wheel and the driving worm to move, and the driving worm drives the linkage rod 83 to move in the slot 53. Meanwhile, the driving screw 51 drives the linkage rod 83 to rotate, the linkage rod 83 drives the driving worm to rotate, the driving worm drives the driving worm wheel to rotate, the driving worm wheel drives the lifting screw 71 to rotate, the effect of linkage of the driving screw 51 and the lifting screw 71 is achieved, and therefore the locking block 6 can be conveniently inserted into the locking groove 12.

Through the cooperation of support column 2, locating piece 4, locking block 6, realized two precast pile 1's reinforcement to the anti-seismic performance of precast pile 1 has been improved. When the earthquake happens, the elastic part 3 plays a role in buffering the supporting column 2, so that the stability of the supporting column 2 is improved, the stability of the positioning block 4 and the locking block 6 is improved, and the stability of the precast pile 1 is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a well bridge prefabricated composite pile which characterized in that: comprises precast piles (1), the precast piles (1) are vertically arranged and are oppositely provided with two, a supporting column (2) is arranged between the two precast piles (1), the supporting column (2) is connected with two positioning blocks (4) in a sliding way along the horizontal direction, the supporting column (2) is connected with a sliding component (5) for driving the two positioning blocks (4) to slide towards opposite directions, the opposite side walls of the two precast piles (1) are respectively provided with a positioning groove (11), the two positioning blocks (4) are respectively in one-to-one correspondence with the two positioning grooves (11) and are in splicing fit, the positioning blocks (4) are connected with two locking blocks (6) in a sliding way along the vertical direction, the positioning blocks (4) are connected with lifting components (7) for driving the two locking blocks (6) to slide towards opposite directions, and a linkage component (8) is connected between the sliding component (5) and the lifting components (7), two horizontal inner walls of the positioning groove (11) are respectively provided with a locking groove (12), and the two locking blocks (6) are respectively in one-to-one correspondence and in splicing fit with the two locking grooves (12).

2. The prefabricated combined pile for medium and small bridges according to claim 1, wherein: slip subassembly (5) including drive screw (51), drive screw (51) are the level setting, and drive screw (51) rotate to be connected in support column (2), and integrated into one piece has the screw thread to revolve to two opposite first screw sections on drive screw (51), and two locating pieces (4) are corresponding with two first screw sections one-to-one respectively, and locating piece (4) threaded connection is in drive screw (51).

3. The prefabricated combined pile for the middle and small bridges as claimed in claim 2, wherein: lifting unit (7) are vertical setting including lifting screw (71), lifting screw (71) rotate to be connected in locating piece (4), integrated into one piece has the screw thread to revolve to two opposite second screw thread sections on lifting screw (71), two locking block (6) respectively with two second screw thread sections one-to-one, locking block (6) threaded connection is in lifting screw (71), linkage subassembly (8) are used for linkage drive screw (51) and lifting screw (71).

4. The prefabricated combined pile for the middle and small bridges as claimed in claim 3, wherein: linkage subassembly (8) are including linkage worm wheel (81), linkage worm (82), linkage subassembly (8) all are connected with a set ofly on every locating piece (4), linkage worm (82) rotate to be connected in locating piece (4), linkage worm wheel (81) fixed cover is established on lifting screw (71), linkage worm (82) mesh with linkage worm wheel (81) mutually, coaxial coupling has gangbar (83) on linkage worm (82), open along self axis on drive screw (51) has slot (53), gangbar (83) slip is inserted and is established in slot (53), gangbar (83) are the polygon with the cross section of slot (53).

5. The prefabricated combined pile for medium and small bridges according to claim 1, wherein: two opposite sliding grooves (23) are formed in the supporting column (2) in the horizontal direction, the length directions of the sliding grooves (23) point to the precast pile (1), the positioning blocks (4) correspond to the sliding grooves (23) one to one, and sliding rods (42) sliding in the sliding grooves (23) are connected to the positioning blocks (4).

6. The prefabricated combined pile for medium and small bridges according to claim 1, wherein: two lifting grooves (45) which are oppositely arranged are vertically formed in the positioning block (4), the two locking blocks (6) are in one-to-one correspondence with the two lifting grooves (45), and the locking blocks (6) are connected with lifting blocks (62) which slide in the lifting grooves (45).

7. The prefabricated combined pile for medium and small bridges according to claim 1, wherein: the bottom of support column (2) is fixed connection elastic component (3), and elastic component (3) extrusion is between the diapire of support column (2) and the diapire of foundation ditch.

8. The prefabricated combined pile for the middle and small bridges as claimed in claim 7, wherein: holding tank (21) have along vertical opening to the diapire of support column (2), and the diapire fixedly connected with fixed column (9) of foundation ditch, in holding tank (21) were worn to locate in fixed column (9), the outside of fixed column (9) was located in elastic component (3) cover, support column (2) in fixed column (9) sliding fit.