A construction trolley for box culvert structure

Abstract

The present application relates to the field of municipal engineering equipment, and provides a construction trolley of a box culvert structure, comprising a trolley body and a formwork unit arranged above the trolley body; the formwork unit comprises a plurality of vertical molds, a plurality of horizontal molds and a plurality of diagonal bracing members, wherein the diagonal bracing member comprises two diagonal bracing sub-columns, and hinge seats are respectively installed on the opposite sides of two adjacent horizontal molds, and each diagonal bracing sub-column is hinged to the corresponding hinge seat; the two diagonal bracing sub-columns cooperate with each other through a limiting structure to jointly support the formwork unit; the vertical mold comprises a first column and a movable column group, and each first column is respectively connected to each horizontal mold; the movable column group is provided with a plurality of groups, and each movable column group is arranged between two adjacent first columns; a sliding structure is arranged between each first column and an adjacent movable column group. Based on this, the height of the entire formwork unit can be conveniently reduced, the space occupied by the formwork as a whole can be reduced, and the convenience of transporting the trolley body and the formwork can be improved.

Description

Technical Field

[0001] This application relates to the field of municipal engineering equipment, and particularly to a construction trolley for a culvert structure. Background Art

[0002] With the rapid development of urbanization, the integrated pipe gallery is a modern and intensive urban infrastructure; the most typical culvert structure form of the integrated pipe gallery is being more and more widely used. The culvert structure not only solves the problem of urban three-dimensional traffic, but also greatly facilitates the maintenance and repair of municipal facilities. The construction of the culvert structure plays an inestimable important role in changing the urban appearance, ensuring urban safety, meeting people's livelihood needs, driving economic growth, and improving the quality of new urbanization development.

[0003] As a common engineering type in municipal facilities, the culvert structure generally belongs to a linear project, and its construction line is generally long, and the structural section is relatively consistent; therefore, in order to reduce the cumbersome construction procedures of repeatedly erecting and dismantling the traditional formwork bent, the existing method usually uses the trolley method to build the formwork. A slide rail is laid on the poured culvert floor slab for the movement of the trolley body. The trolley body is provided with a hydraulic device to realize the telescopic adjustment of the formwork on the trolley body, which can conveniently retract the formwork after the wall formwork is set up and move the trolley body to the next wall formwork erection station, with the advantages of simple construction and high safety.

[0004] In view of the above-mentioned related technical solutions, the formworks on the existing trolley bodies are all integral frame structures, usually prefabricated, assembled in the factory, and then transported to the construction site for the construction and erection of the culvert structure; however, due to the large space occupied by the overall formwork, it is inconvenient for the transportation of the trolley body and the formwork, and the transportation cost is high, so it needs to be improved. Summary of the Invention

[0005] In order to improve the transportation convenience of the trolley body and the formwork, this application provides a construction trolley for a culvert structure.

[0006] The construction trolley for a culvert structure provided by this application adopts the following technical solutions:

[0007] A construction trolley for a culvert structure includes a trolley body and a formwork unit arranged above the trolley body. The formwork unit includes a plurality of vertical formwork members, a plurality of horizontal formwork members, and a plurality of diagonal bracing members. Each vertical formwork member is vertically fixed to the trolley body. The horizontal formwork members are horizontally connected between two adjacent vertical formwork members, and the diagonal bracing members are diagonally connected between two adjacent horizontal formwork members;

[0008] Among them, the diagonal bracing member includes two diagonal bracing columns. Hinge seats are respectively installed on the opposite sides of two adjacent horizontal formwork members. Each diagonal bracing column is hinged to the corresponding hinge seat; the two diagonal bracing columns cooperate with each other through a limiting structure to jointly support the formwork unit;

[0009] The vertical formwork member includes a first upright column and a set of movable columns. The number of the first upright columns is adapted to the number of the horizontal formwork members, and each first upright column is respectively connected to each corresponding horizontal formwork member; there are multiple sets of movable column groups, and each movable column group is arranged between two adjacent first upright columns, and the movable column group is normally abutted against the two adjacent first upright columns on both sides; a sliding structure is provided between each first upright column and the adjacent movable column group to enable the two diagonal bracing sub-columns to separate from each other and then the movable column group to horizontally move along the extension direction of the horizontal formwork member to a position vertically offset from the first upright column.

[0010] By adopting the above technical solution, in this application, the two diagonal bracing sub-columns are connected to each other by the limit structure to jointly support the horizontal formwork member, and by arranging the movable column group to be abutted against the two first upright columns on both sides under normal conditions, the formwork unit can maintain good stability, which is convenient for the subsequent construction and pouring of the culvert structure. When it is necessary to transport the trolley body and the entire formwork, by unlocking the limit structure to separate the two diagonal bracing sub-columns from each other, at this time the movable column group can move relative to the first upright column. After moving the movable column group to a position vertically offset from the first upright column through the sliding structure, the two first upright columns can be forced to move towards each other, so as to reduce the height of the entire formwork unit and thus reduce the space occupied by the formwork as a whole, which can improve the convenience of transporting the trolley body and the formwork, and is also beneficial to reducing the transportation cost.

[0011] Optionally, the hinge seat is slidably arranged on the horizontal formwork member, and the sliding direction of the hinge seat is the same as the extension direction of the horizontal formwork member; the side of the diagonal bracing sub-column away from the hinge seat is set as the first abutting side, and the limit structure includes two limit blocks respectively arranged on the adjacent first abutting sides, and the two limit blocks are snap-fitted with each other; the side of the limit block away from the connected diagonal bracing sub-column is set as the second abutting side, and both the first abutting side and the second abutting side are horizontally arranged.

[0012] By adopting the above technical solution, by arranging the hinge seat to drive the diagonal bracing sub-column to slide along the horizontal direction, the limit blocks of the two diagonal bracing sub-columns can be separated from each other, so as to successfully complete the disassembly of the two diagonal bracing sub-columns. When the formwork is normally used to support the culvert structure, the two diagonal bracing sub-columns can be firmly connected through the cooperation of two adjacent limit blocks, and since the two diagonal bracing sub-columns can only be separated from each other along the horizontal direction, it is convenient for the diagonal bracing member to bear the pressure from the upper formwork, so that the whole formwork can maintain a stable support for the upper formwork.

[0013] Optionally, an activity groove is provided on one side of the horizontal formwork member close to the adjacent horizontal formwork member, and the hinge seat is slidably installed in the activity groove; an elastic member is arranged inside the activity groove, and the elastic member is used to force the hinge seat to abut against the side wall of the activity groove close to the first upright column, and at this time the two limit blocks are snap-fitted with each other.

[0014] By adopting the above technical solution, the elastic member can keep the two limit blocks in a mutually clamped state under normal conditions, so that the two diagonal strut columns are firmly connected to each other and play a role in firmly supporting the overall die carrier, improving the overall stability of the die carrier.

[0015] Optionally, a wave-shaped portion integrally formed is provided on one side of the limit block facing the adjacent limit block.

[0016] By adopting the above technical solution, the clamping fit between the two diagonal strut columns can be made more firm through the cooperation of the two wave-shaped portions. At this time, the wave-shaped portion can withstand pressures from multiple directions, further improving the overall support stability of the die carrier.

[0017] Optionally, the moving structure includes a first connecting rod rotatably connected to the first upright column and a first sliding groove formed in the movable column group. A first insertion rod is vertically fixed at one end of the first connecting rod away from the first upright column. The first insertion rod is inserted into the first sliding groove in a matching manner and is movably arranged inside the first sliding groove;

[0018] The first sliding groove includes a vertically moving area and a horizontally moving area that are communicated with each other. The vertically moving area is located on the side of the horizontally moving area away from the adjacent first upright column; when the movable column group abuts against the first upright column, the first insertion rod is located at one end of the vertically moving area away from the horizontally moving area, and when the first insertion rod moves to one end of the horizontally moving area away from the vertically moving area, a rotating space for the movable column group to rotate is formed between the first upright column and the movable column group.

[0019] By adopting the above technical solution, by setting the first connecting rod to connect the first upright column and the movable column group, and by making the first insertion rod of the first connecting rod located at one end of the vertically moving area away from the horizontally moving area, the movable column group can closely abut against the adjacent first upright column, so that the overall die carrier can have good support stability; when the two diagonal strut columns are separated from each other, the movable column group is forced to move upward, the first insertion rod can move along the vertical sliding area and enter the horizontal sliding area, and continue to force the movable column group to move horizontally. The first insertion rod can move to one end of the horizontal sliding area away from the vertical sliding area. At this time, a rotating space for the movable column group to rotate is formed between the movable column group and the first upright column. Rotating the movable column group can make it misaligned with the first upright column in the vertical direction, and the two first upright columns can move towards each other to the position where they abut against each other, so as to realize the length adjustment of the vertical die member.

[0020] Optionally, the movable column group includes two second upright columns and a second connecting rod movably connected between the two second upright columns. Second sliding grooves are respectively formed in the two second upright columns. Second insertion rods are vertically fixed at both ends of the second connecting rod. Each second insertion rod is inserted into the second sliding groove in a matching manner and is movably arranged inside the second sliding groove; when the two second upright columns abut against each other, the second insertion rod is located at one end of the second sliding groove away from the adjacent second sliding groove.

[0021] By adopting the above technical solution, by arranging the second connecting rod to connect two second upright columns, and by making the second insertion rod of the second connecting rod located at one end of the second sliding groove away from the adjacent second sliding groove, the two second upright columns can maintain a state of being tightly abutted, so that the overall formwork can have good support stability; when the first insertion rod enters the lateral sliding area and the movable column group is locally misaligned with the first upright column in the vertical direction, by forcing the two second upright columns to move away from each other, the second insertion rod can move to one end of the second sliding groove close to the adjacent second sliding groove. At this time, a rotating space for the second upright column to rotate can be formed between the two second upright columns. By rotating the second upright column, the movable column group can be in a folded and contracted state and located outside the first upright column, facilitating the two first upright columns to approach each other to smoothly and tightly abut, so as to successfully complete the length adjustment of the vertical formwork member.

[0022] Optionally, a first toothed portion is provided on one side of the first upright column close to the second upright column, and a second toothed portion is provided on one side of the second upright column close to the first upright column, and the first toothed portion and the second toothed portion are engaged with each other.

[0023] By adopting the above technical solution, when the first upright column and the second upright column are abutted against each other, the first upright column and the second upright column can be tightly attached through the cooperation of the first toothed portion and the second toothed portion, which is beneficial to reducing the situation of misaligned movement between the first upright column and the second upright column, and is also beneficial to the vertical formwork member to bear the pressure from the upper formwork and the side pressure from the side formwork.

[0024] Optionally, third toothed portions are respectively provided on the opposite sides of the two second upright columns, and the two adjacent third toothed portions are engaged with each other.

[0025] By adopting the above technical solution, when the two second upright columns are abutted against each other, the two second upright columns can be tightly attached through the cooperation of the two third toothed portions, which is beneficial to reducing the situation of misaligned movement between the two second upright columns, and is also beneficial to the vertical formwork member to bear the pressure from the upper formwork and the side pressure from the side formwork.

[0026] Optionally, multiple sets of formwork units are provided, and all the formwork units are arranged at equal intervals in the width direction of the trolley body, and each formwork unit is hinged to the top of the trolley body; when the formwork unit rotates to a position perpendicular to the top of the trolley body, adjacent formwork units are connected and supported by a reinforcement mechanism.

[0027] By adopting the above technical solution, by hinging the mold base unit to the top of the trolley body and using the reinforcement mechanism to connect between adjacent mold base units, the overall mold base can have good stability, which is convenient for providing good support for each formwork during the subsequent casting of the culvert structure; when transporting the trolley body and the mold base, after lowering the height of the mold base unit, by removing the reinforcement mechanism and flipping the mold base unit, the mold base unit can be attached to the top of the trolley body, further reducing the space occupied by the overall mold base, thereby further improving the convenience of transporting the trolley body and the mold base.

[0028] Optionally, the reinforcement mechanism includes a support column and two support seats. The two support seats are respectively fixed on the opposite sides of the two mold base units, and each support seat is provided with a through hole on both sides; third insertion rods are vertically fixed at both ends of the support column, and the two third insertion rods are respectively inserted into the two through holes.

[0029] By adopting the above technical solution, by fixing the two support seats to adjacent mold base units, when the two adjacent mold base units are rotated to the vertical position, inserting the two third insertion rods at both ends of the support column into the two through holes respectively can stably connect the support column to the adjacent mold base units, thereby playing a good supporting and reinforcing role.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. By unlocking the limiting structure to separate the two diagonal support columns from each other, and then moving the movable column group to a position vertically misaligned with the first column through the sliding structure, the height of the entire mold base unit can be lowered to reduce the space occupied by the overall mold base, thereby improving the convenience of transporting the trolley body and the mold base;

[0032] 2. The cooperation of the two limit blocks can stably connect the two diagonal support columns, and since the two diagonal support columns can only be separated from each other in the horizontal direction, it is convenient for the diagonal support member to bear the pressure from the upper formwork, so that the overall mold base maintains a stable support for the upper formwork;

[0033] 3. By hinging the mold base unit to the top of the trolley body, after lowering the height of the mold base unit, flipping the mold base unit can make the mold base unit fit on the top of the trolley body, further reducing the space occupied by the overall mold base, thereby further improving the convenience of transporting the trolley body and the mold base. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is the overall structural schematic diagram of this embodiment;

[0035] Figure 2 is the structural schematic diagram of the mold base unit in this embodiment;

[0036] Figure 3 is Figure 2 an enlarged view of location A in

[0037] Figure 4 is Figure 2 an enlarged view of location B in

[0038] Figure 5 a schematic structural view of the movable column group in this embodiment;

[0039] Figure 6 a schematic structural view of the die carrier unit in the contracted state in this embodiment.

[0040] Explanation of reference numerals: 1. Trolley body; 2. Die carrier unit; 3. First upright column; 31. First toothed part; 32. Hinge; 4. Movable column group; 41. Second upright column; 411. Second sliding groove; 412. Second toothed part; 413. Third toothed part; 42. Second connecting rod; 43. Second inserting rod; 5. Sliding structure; 51. First connecting rod; 52. First sliding groove; 521. Vertical movement area; 522. Horizontal movement area; 53. First inserting rod; 6. Cross die member; 61. Hinge seat; 62. Movable groove; 63. Elastic member; 7. Diagonal brace; 71. Diagonal brace column; 72. Limiting structure; 721. Limiting block; 722. Corrugated part; 73. First abutting side; 74. Second abutting side; 8. Reinforcement mechanism; 81. Support seat; 82. Support column; 83. Third inserting rod. Detailed implementation manners

[0041] The following further elaborates on this application Figure 1-6 in conjunction with the attached drawings.

[0042] An embodiment of this application discloses a construction trolley for a culvert structure.

[0043] Referring to Figure 1 , it includes a trolley body 1 and a die carrier unit 2 disposed above the trolley body 1. A traveling mechanism and a hydraulic jacking mechanism are provided at the bottom of the trolley body 1. Among them, the traveling mechanism is used to drive the trolley body 1 to move along the extension direction of the slide rail laid on the construction site, so that the trolley body 1 sequentially moves to each wall form erection station; the hydraulic jacking mechanism is used to jack up the trolley body 1 after the trolley body 1 moves to the designated wall form erection station to make the traveling mechanism leave the slide rail, which has the function of fixing the position of the trolley body 1. The structures of the traveling mechanism and the hydraulic jacking mechanism are the same as those in the prior art and will not be elaborated here one by one.

[0044] There are multiple sets of die carrier units 2, and all the die carrier units 2 are equidistantly arranged along the width direction of the trolley body 1; the top of the die carrier unit 2 is used to fix the upper template, and the upper template can be connected to the die carrier unit 2 through a telescopic mechanism; both sides of the die carrier unit 2 are used to respectively fix the side templates, and the side templates can also be connected to the die carrier unit 2 through a telescopic mechanism; the structures of the upper template, the side templates and the telescopic mechanism are the same as those in the prior art, and will not be elaborated here one by one.

[0045] Referring to Figure 2 , wherein, the die carrier unit 2 includes multiple vertical die members, multiple horizontal die members 6 and multiple diagonal bracing members 7. Each vertical die member is vertically arranged on the top of the trolley body 1, and all the vertical die members are equidistantly arranged along the extension direction of the trolley body 1; a hinge member 32 is provided on one side wall of each vertical die member, and the hinge member 32 is located at the bottom of the vertical die member. The vertical die member is hinged to the trolley body 1 through the hinge member 32, so that the die carrier unit 2 can be turned relative to the trolley body 1. A reinforcement mechanism 8 is provided between adjacent die carrier units 2. The reinforcement mechanism 8 is used to connect and support two die carrier units 2 when the die carrier unit 2 is in the vertical position, so as to improve the overall stability of the die carrier.

[0046] Referring to Figure 3 , the reinforcement mechanism 8 includes a support column 82 and two support seats 81. The two support seats 81 are respectively fixed on the opposite sides of two die carrier units 2, and each die carrier unit 2 is provided with a jack that penetrates through both sides; third insertion rods 83 are vertically fixed at both ends of the support column 82, and the two third insertion rods 83 are respectively inserted into the two jacks, so as to connect and support adjacent die carrier units 2.

[0047] Returning to Figure 2 , the horizontal die member 6 is horizontally connected between two adjacent vertical die members, and the diagonal bracing member 7 is obliquely arranged and connected between two adjacent horizontal die members 6. Referring to Figure 4 , hinge seats 61 for installing the diagonal bracing member 7 are respectively provided on two opposite sides of the horizontal die member 6. A movable groove 62 is provided on one side of the horizontal die member 6 close to the adjacent horizontal die member 6, and the extension direction of the movable groove 62 is the same as the extension direction of the horizontal die member 6; a movable clamping block is integrally formed at the bottom of the hinge seat 61, and the hinge seat 61 is slidably connected to the movable groove 62 through the movable clamping block, so that the hinge seat 61 can move along the extension direction of the movable groove 62.

[0048] An elastic member 63 is further provided inside the movable groove 62. One end of the elastic member 63 is connected to the outer side wall of the movable clamping block, and the other end of the elastic member 63 is connected to the inside of one side of the movable groove 62 far from the adjacent vertical die member; the elastic member 63 here is set as a compression spring, and the compression spring is in a normally compressed state, and can always generate an elastic force acting on the movable clamping block to move the limiting block 721 towards the direction close to the adjacent vertical die member, so that the hinge seat 61 abuts against the inner side wall of the vertical die member.

[0049] Referring to Figure 3 and Figure 4 , the diagonal brace 7 includes two diagonal brace columns 71, and the two diagonal brace columns 71 are respectively hinged to two hinge seats 61; on one side of each diagonal brace column 71 away from the hinge seat 61 is set as the first abutting side 73, and the first abutting side 73 is horizontally arranged. When the hinge seat 61 abuts tightly against the vertical formwork member under the elastic force of the elastic member 63, the two adjacent first abutting sides 73 can abut against each other, and by moving the hinge seat 61, the two first abutting sides 73 can be horizontally moved, so that the two diagonal brace columns 71 can be smoothly separated.

[0050] Referring to Figure 3 , the two diagonal brace columns 71 cooperate with each other through a limiting structure 72 to jointly support the formwork unit 2. The limiting structure 72 includes two limiting blocks 721 respectively arranged on the adjacent first abutting sides 73. The limiting block 721 is located on the side of the diagonal brace column 71 away from the adjacent vertical formwork member. When the hinge seat 61 abuts tightly against the vertical formwork member under the elastic force of the elastic member 63, the two limiting blocks 721 can be engaged and connected in a matching manner, so that the two diagonal brace columns 71 are firmly connected. On the side of the limiting block 721 away from the connected diagonal brace column 71 is set as the second abutting side 74, and the second abutting side 74 is also horizontally arranged. By moving the hinge seat 61, the two first abutting sides 73 can be horizontally moved, so that the two diagonal brace columns 71 can be smoothly separated.

[0051] On one side of each limiting block 721 facing the adjacent limiting block 721 is provided a corrugated portion 722, and the corrugated portion 722 is integrally formed with the limiting block 721; through the cooperation of the two corrugated portions 722, the clamping cooperation of the two diagonal brace columns 71 can be made more compact, and the corrugated portion 722 can withstand pressures from multiple directions, improving the support stability of the overall formwork.

[0052] In addition, the two support seats 81 of the reinforcement mechanism 8 can be respectively fixed to two adjacent diagonal brace columns 71 arranged opposite to each other in two groups of formwork units 2. When it is necessary to horizontally move the diagonal brace columns 71, by applying a force to the support column 82, the adjacent diagonal brace columns 71 arranged opposite to each other can be forced to move together, thereby improving the convenience of operation.

[0053] Returning to Figure 4, the vertical formwork member includes a first upright column 3 and a movable column group 4. The number of the first upright columns 3 is set to be equal to the number of the horizontal formwork members 6, and each of the first upright columns 3 is respectively connected to each of the horizontal formwork members 6; there are multiple groups of the movable column groups 4, and each movable column group 4 is arranged between two adjacent first upright columns 3, and a sliding structure 5 is arranged between each first upright column 3 and the adjacent movable column group 4, so as to realize that after the two diagonal strut columns 71 are separated from each other, the movable column group 4 horizontally moves along the extension direction of the horizontal formwork member 6 to a position vertically misaligned with the first upright column 3. During the construction and pouring of the culvert structure, the movable column group 4 is normally abutted against the two adjacent first upright columns 3 on both sides, so that the overall formwork has good supporting effect and supporting stability.

[0054] Referring to Figure 5 , the movable column group 4 includes two second upright columns 41 and a second connecting rod 42 movably connected between the two second upright columns 41. Among them, two second upright columns 41 are respectively provided with second sliding grooves 411, and the extension direction of the second sliding grooves 411 is set to be the same as the extension direction of the second upright columns 41; both ends of the second connecting rod 42 are respectively and vertically fixed with second insertion rods 43, and the outer diameter of the second insertion rods 43 is set to be equal to the width of the second sliding grooves 411, and each second insertion rod 43 is inserted into the second sliding groove 411 in a matching manner. At this time, the second insertion rod 43 can freely slide inside the second sliding groove 411, and when the two second upright columns 41 are abutted against each other, each second insertion rod 43 is located at one end of the second sliding groove 411 away from the adjacent second sliding groove 411.

[0055] When forcing the two second upright columns 41 to move away from each other, the second insertion rod 43 can move to one end of the second sliding groove 411 close to the adjacent second sliding groove 411, so that the two second upright columns 41 are smoothly separated; at this time, a rotation space for the second upright columns 41 to rotate is formed between the two second upright columns 41, and rotating the second upright columns 41 can make the two second upright columns 41 in a folded and contracted state.

[0056] Third toothed portions 413 are respectively arranged on the opposite sides of the two second upright columns 41, and the third toothed portions 413 and the adjacent second upright columns 41 are integrally formed; when the two second upright columns 41 are abutted against each other, the two third toothed portions 413 can be engaged with each other, so that the two second upright columns 41 are closely attached to each other, reducing the possibility of misaligned movement between the two second upright columns 41.

[0057] Return to Figure 4 , the sliding structure 5 includes a first connecting rod 51 rotatably connected to the first upright column 3 and a first sliding groove 52 opened on the second upright column 41. One end of the first connecting rod 51 away from the first upright column 3 is vertically fixed with a first insertion rod 53, and the outer diameter of the first insertion rod 53 is set to be equal to the width of the first sliding groove 52, and each first insertion rod 53 is inserted into the first sliding groove 52 in a matching manner. At this time, the first insertion rod 53 can freely slide inside the first sliding groove 52.

[0058] Referring to Figure 5 , wherein the first chute 52 includes a vertically moving area 521 and a horizontally moving area 522 that communicate with each other. The vertically moving area 521 is located on the side of the horizontally moving area 522 away from the adjacent first column 3. The extending direction of the vertically moving area 521 is set in the same direction as the extending direction of the second column 41. When the second column 41 abuts against the adjacent first column 3, the first insertion rod 53 is located at one end of the vertically moving area 521 away from the horizontally moving area 522.

[0059] When the second column 41 moves away from the first column 3, the first insertion rod 53 can move along the vertically moving area 521 and finally enter the horizontally moving area 522. By horizontally moving the two second columns 41, the movable column group 4 can move to a position vertically misaligned with the first column 3. At this time, a rotating space for the movable column group 4 to rotate is formed between the first column 3 and the movable column group 4. Rotating the second column 41 makes the two second columns 41 in a folded and telescopic state, and the movable column group 4 can be smoothly rotated to the outside of the first column 3, so as to facilitate moving the two first columns 3 to a position where they abut against each other, and the height of the mold frame unit 2 can be lowered.

[0060] Referring to Figure 4 and Figure 6 , during the specific contraction process of the mold frame unit 2, first move the hinge seat 61 to drive the diagonal strut column 71 to move horizontally. The limit block 721 of the diagonal strut column 71 can be separated from the limit block 721 of the adjacent diagonal strut column 71, so as to release the locking between the two diagonal strut columns 71. Then, lift the two second columns 41 and the first column 3 located above the two second columns 41. At this time, the first insertion rod 53 moves to the horizontal sliding area, and at the same time, the second insertion rod 43 moves to one end of the second chute 411 where it is located close to the adjacent second chute 411. At the same time, horizontally move the two second columns 41, the first insertion rod 53 moves to one end of the horizontal sliding area away from the vertical sliding area, and rotate the two second columns 41 to the horizontal position. The two horizontally arranged second columns 41 can be attached to each other and are jointly located outside the first column 3. Finally, force the two second columns 41 to move towards each other until they abut against each other, and the contraction of the vertical mold member can be completed, thereby reducing the overall height of the mold frame unit 2 and facilitating the transportation of the trolley body 1 and the mold frame.

[0061] Referring to Figure 4 and Figure 5, on one side of each first upright post 3 close to the second upright post 41, there is provided a first toothed portion 31, and on one side of the second upright post 41 close to the first upright post 3, there is provided a second toothed portion 412. When the first upright post 3 abuts against the second upright post 41, the first toothed portion 31 and the second toothed portion 412 engage with each other, so that the first upright post 3 and the adjacent second upright post 41 are closely attached, reducing the possibility of misalignment movement between the first upright post 3 and the second upright post 41.

[0062] The implementation principle of the construction trolley of a culvert structure in an embodiment of the present application is as follows:

[0063] When the culvert structure is erected and poured, the limit blocks 721 of the diagonal strut rods are matched and clamped with the limit blocks 721 of the adjacent diagonal strut rods, and the two diagonal strut rods can be connected to each other and jointly support the cross formwork 6; in addition, the first upright post 3 closely abuts against the adjacent second upright post 41, and the two adjacent second upright posts 41 closely abut against each other, which can make the vertical formwork have good structural stability, and further make the overall formwork maintain good stability, and can successfully complete the erection of the culvert structure.

[0064] When it is necessary to transport the trolley body 1 and the entire formwork, by unlocking the limit structure 72, the two diagonal strut columns 71 are separated from each other. At this time, the second upright post 41 can move away from the first upright post 3. The two second upright posts 41 are turned to the outside of the first upright post 3 and the two second upright posts 41 are in a folded and contracted state, which can force the two first upright posts 3 to approach each other and finally abut against each other, so as to reduce the height of the entire formwork unit 2 to reduce the space occupied by the overall formwork, and further improve the convenience of transporting the trolley body 1 and the formwork, and at the same time is beneficial to reducing the transportation cost.

[0065] The above is the preferred embodiment of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A construction trolley for a box culvert structure, comprising a trolley body (1) and a formwork unit (2) arranged above the trolley body (1), characterized in that: The mold frame unit (2) comprises a plurality of vertical mold members, a plurality of horizontal mold members (6) and a plurality of diagonal bracing members (7), each of the vertical mold members being vertically fixed to the trolley body (1), the horizontal mold member (6) being horizontally connected between two adjacent vertical mold members, and the diagonal bracing member (7) being obliquely connected between two adjacent horizontal mold members (6); The diagonal bracing member (7) comprises two diagonal bracing sub-columns (71), and hinge seats (61) are respectively installed on opposite sides of two adjacent transverse mold members (6), and each diagonal bracing sub-column (71) is hinged to a corresponding hinge seat (61); the two diagonal bracing sub-columns (71) cooperate with each other through a limiting structure (72) to jointly support the mold frame unit (2); The vertical mold comprises a first column (3) and a movable column group (4), the number of the first columns (3) matches the number of the transverse mold (6), and each first column (3) is connected to each transverse mold (6) respectively; the movable column group (4) is provided with a plurality of groups, each movable column group (4) is provided between two adjacent first columns (3), and the movable column group (4) normally abuts against the first columns (3) adjacent to each other on both sides; a sliding structure (5) is provided between each first column (3) and the adjacent movable column group (4), so that after the two diagonal bracing columns (71) are separated from each other, the movable column group (4) moves horizontally along the extension direction of the transverse mold (6) to a position vertically displaced from the first column (3); the sliding structure (5) comprises a first connecting rod (51) rotatably connected to the first column (3) and a first sliding groove (52) provided on the movable column group (4), the first connecting rod (51) being rotatably connected to the first column (3) and a first sliding groove (52) provided on the movable column group (4), the first connecting rod (51) being rotatably connected to the first column (3) and a first sliding groove (52) provided on the movable column group (4), the first connecting rod (51) being rotatably connected to the first column (3) and the ... A first insertion rod (53) is vertically fixed to one end of the rod (51) away from the first column (3), and the first insertion rod (53) is matched and inserted into the first slide groove (52) and movably arranged inside the first slide groove (52); the first slide groove (52) includes a vertical movement area (521) and a horizontal movement area (522) that are connected to each other, and the vertical movement area (521) is located on a side of the horizontal movement area (522) away from the adjacent first column (3); when the movable column group (4) abuts against the first column (3), the first insertion rod (53) is located at one end of the vertical movement area (521) away from the horizontal movement area (522), and when the first insertion rod (53) moves to one end of the horizontal movement area (522) away from the vertical movement area (521), a rotation space for the movable column group (4) to rotate is formed between the first column (3) and the movable column group (4).

2. The construction trolley for the box culvert structure according to claim 1, characterized in that: The hinge seat (61) is slidably arranged on the transverse mold member (6), and the sliding direction of the hinge seat (61) is arranged in the same direction as the extension direction of the transverse mold member (6); a side of the diagonal bracing column (71) away from the hinge seat (61) is arranged as a first abutting side (73), and the limiting structure (72) comprises two limiting blocks (721) respectively arranged on adjacent first abutting sides (73), and the two limiting blocks (721) are snap-fitted with each other; a side of the limiting block (721) away from the connected diagonal bracing column (71) is arranged as a second abutting side (74), and the first abutting side (73) and the second abutting side (74) are both arranged horizontally.

3. The construction trolley for the box culvert structure according to claim 2, characterized in that: A movable groove (62) is provided on one side of the transverse module (6) close to the adjacent transverse module (6), and the hinge seat (61) is slidably mounted in the movable groove (62); an elastic member (63) is provided inside the movable groove (62), and the elastic member (63) is used to force the hinge seat (61) to press against a side wall of the movable groove (62) close to the first column (3), and at this time, the two limit blocks (721) are matched and clamped.

4. The construction trolley for the box culvert structure according to claim 2, characterized in that: An integrally formed wave-shaped portion (722) is provided on one side of the limiting block (721) facing the adjacent limiting block (721).

5. The construction trolley for the box culvert structure according to claim 1, characterized in that: The movable column group (4) comprises two second columns (41) and a second connecting rod (42) movably connected between the two second columns (41); the two second columns (41) are respectively provided with a second slide groove (411); second insertion rods (43) are respectively vertically fixed at both ends of the second connecting rod (42); each second insertion rod (43) is matched and inserted into the second slide groove (411) and movably arranged inside the second slide groove (411); when the two second columns (41) are abutted against each other, the second insertion rod (43) is located at one end of the second slide groove (411) away from the adjacent second slide groove (411).

6. The construction trolley for the box culvert structure according to claim 5, characterized in that: A first tooth-shaped portion (31) is provided on a side of the first column (3) close to the second column (41), and a second tooth-shaped portion (412) is provided on a side of the second column (41) close to the first column (3), the first tooth-shaped portion (31) and the second tooth-shaped portion (412) being engaged with each other.

7. The construction trolley for the box culvert structure according to claim 5, characterized in that: The opposite sides of the two second upright posts (41) are respectively provided with third tooth-shaped portions (413), and two adjacent third tooth-shaped portions (413) are engaged with each other.

8. The construction trolley for the box culvert structure according to claim 1, characterized in that: A plurality of mold frame units (2) are provided, all of the mold frame units (2) are arranged equidistantly along the width direction of the trolley body (1), and each mold frame unit (2) is hinged to the top of the trolley body (1); when the mold frame unit (2) is rotated to a position perpendicular to the top of the trolley body (1), adjacent mold frame units (2) are connected and supported by a reinforcement mechanism (8).

9. The construction trolley for the box culvert structure according to claim 8, characterized in that: The reinforcement mechanism (8) comprises a support column (82) and two support seats (81), the two support seats (81) being fixed to opposite sides of the two mold frame units (2), and each support seat (81) being provided with a plug hole passing through at two sides; third plug rods (83) are respectively vertically fixed at both ends of the support column (82), and the two third plug rods (83) are respectively inserted into the two plug holes correspondingly.

Images