A walking type trolley for rapid construction of a culvert and a method for using the same

Abstract

The application discloses a kind of culvert rapid construction walking trolley and its using method, including two frame bodies, frame body is connected with walking wheel, two frame bodies are detachably connected with connecting frame between, frame body is rotatably connected with outer formwork by two groups of first parallelogram supports, two groups of first parallelogram supports are connected with first connecting rod between, first connecting rod is hinged with first oil cylinder, and first oil cylinder other end is hinged with frame body;Frame body is rotatably connected with inner formwork by two groups of second parallelogram supports, two groups of second parallelogram supports are connected with second connecting rod between, second connecting rod is hinged with second oil cylinder, and second oil cylinder other end is hinged with frame body;First parallelogram support and second parallelogram support opposite direction of inclination are opposite.The application is easy to operate, can realize the adjustment of any construction span, can be realized in different span size culvert general, save construction cost and time cost.

Description

Technical Field

[0001] The present invention relates to the technical field of culvert construction, and in particular to a walking trolley for rapid culvert construction and a use method thereof. Background Art

[0002] With the rapid development of major cities, surface road traffic has become increasingly complex, with a proliferation of underpasses. During the construction of underpasses, or culverts, the entire underground passageway must be poured in sections to minimize construction site time and reduce disruption to surface traffic. Formwork trolleys are large steel structure formwork systems widely used in tunnel construction for highways, railways, hydropower projects, urban railways, and other applications. The formwork of a formwork trolley consists of a top form, two side forms, and a series of connected forms. A grouting port is located at the top of the top form, connected to a grouting pipe and pump for concrete pouring.

[0003] While a trolley with a travel function facilitates overall trolley movement, it requires the vertical movement of the inner and outer formwork to maintain the trolley's mobility. During demolding, the inner and outer formwork must also be moved horizontally. In existing technologies, the horizontal and vertical movement of the inner and outer formwork are performed separately, resulting in a complex overall structure and inconvenient operation. Furthermore, due to the varying widths of culverts, existing trolleys are inconvenient for width adjustment, making them unsuitable for the construction of culverts with varying spans. Summary of the Invention

[0004] In order to solve the problems existing in the above-mentioned prior art, a walking trolley for rapid culvert construction and a method of using the same are provided.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] The present invention proposes a walking trolley for rapid construction of a culvert, comprising two frames, the frames being connected to walking wheels, a connecting frame being detachably connected between the two frames, the frames being rotatably connected to an outer formwork via two groups of first parallelogram supports, a first connecting rod being connected between the two groups of first parallelogram supports, the first connecting rod being hinged to a first oil cylinder, the other end of the first oil cylinder being hinged to the frames; the frames being rotatably connected to an inner formwork via two groups of second parallelogram supports, a second connecting rod being connected between the two groups of second parallelogram supports, the second connecting rod being hinged to a second oil cylinder, the other end of the second oil cylinder being hinged to the frames; the first parallelogram supports and the second parallelogram supports are in opposite inclination directions.

[0007] Preferably, the first parallelogram bracket includes two first connecting rods, one end of the first connecting rod is hinged to the outer template, and the other end of the first connecting rod is hinged to the frame body, the two first connecting rods are arranged in parallel, and the first oil cylinder, the first connecting rod and the frame body cooperate with each other to form a triangular shape.

[0008] Preferably, the second parallelogram bracket includes two second connecting rods, one end of the second connecting rod is hinged to the inner template, and the other end of the second connecting rod is hinged to the frame body, the two second connecting rods are arranged in parallel, and the second oil cylinder, the second connecting rod and the frame body cooperate with each other to form a triangular shape.

[0009] Preferably, a card slot is provided at one end of the connecting frame, and a slide plate that slides horizontally and a card block that slides vertically are provided in the card slot. The slide plate is connected to the connecting frame through a second spring, and the card block is connected to the connecting frame through a first spring.

[0010] Preferably, the other end of the connecting frame is fixedly connected to a connecting block, a cavity is provided in the connecting block, a conical clamping block that slides horizontally is provided in the cavity, the conical clamping block is connected to the connecting block through a third spring, a conical sleeve that is adapted to the conical clamping block is fixedly connected to the outer wall of the connecting block, the conical clamping block is provided between the conical sleeve and the connecting frame, and the elastic force of the second spring is greater than the elastic force of the third spring.

[0011] Preferably, the conical clamping block is fixedly connected to a telescopic rod, the other end of the telescopic rod is fixedly connected to the connecting block, the third spring is sleeved on the telescopic rod, one end of the third spring is connected to the conical clamping block, and the other end of the third spring is connected to the connecting block.

[0012] Preferably, the conical sleeve is provided with a first straight surface on one side close to the conical clamping block, and a first inclined surface is provided on the other side of the conical sleeve. The clamping block is provided with a second straight surface on one side close to the slide, and a second inclined surface is provided on the other side of the clamping block.

[0013] Preferably, it also includes a sliding sleeve, the connecting frame is provided with a through hole for the sliding sleeve to pass through, and the frame body is provided with a plurality of limiting holes for the sliding sleeve to pass through; a sliding rod that slides in the vertical direction and a plurality of limiting balls that slide in the horizontal direction are provided in the sliding sleeve, the sliding rod is provided between the limiting balls, and the sliding rod is provided with a groove that is compatible with the limiting balls.

[0014] Preferably, one end of the sliding rod passes through the sliding sleeve, and the sliding rod is connected to the sliding sleeve through a fourth spring; the sliding sleeve is fixedly connected to a fixed block, and the frame is arranged between the fixed block and the limiting ball; the sliding rod includes a limiting portion, and the grooves are arranged on both sides of the limiting portion. When the limiting ball and the limiting portion are in contact, one end of the limiting ball is located on the outside of the sliding sleeve.

[0015] The present invention also proposes a method for using a walking trolley for rapid culvert construction, which uses the above-mentioned walking trolley for rapid culvert construction, including the following steps:

[0016] When you need to increase the width of the frame:

[0017] Select a connecting frame of a specified size, and move the connecting frame so that one end of the connecting block moves into the card slot. As the connecting block moves, the tapered sleeve drives the card block to move inward, compressing the first spring, thereby causing the tapered sleeve to move between the card block and the slide. At this time, the slide and the connecting block come into contact, thereby compressing the first spring. After the tapered sleeve and the card block come into contact, the adjacent connecting frames are connected, thereby increasing the width of the frame.

[0018] When you need to reduce the width of the frame:

[0019] By moving the connecting frame, the connecting block continues to move into the card slot, so that the first spring is further compressed. Under the action of the conical card block, the card block is driven to move inward, so that the first spring is compressed, and the conical card block is moved between the conical sleeve and the card block. The connecting frame is moved outward, so that the conical card block is engaged in the conical sleeve, so that the third spring is compressed, and the conical card block drives the conical sleeve to move out of the card slot, thereby realizing the disassembly of the adjacent connecting frame and completing the reduction of the width of the frame body.

[0020] When the frame and the connecting frame need to be connected:

[0021] By moving the connecting frame, the through hole of the connecting frame is moved to the side of the limiting hole of the frame body, and the sliding sleeve is inserted into the through hole and the limiting hole. As the sliding rod is pressed, the limiting ball moves into the groove, so that the sliding sleeve passes through the through hole and the limiting hole. Under the action of the fourth spring, the sliding rod is driven to move, so that the limiting ball moves to the outside of the sliding sleeve. The fixed block and the limiting ball cooperate with each other to realize the connection between the frame body and the connecting frame;

[0022] Start the first oil cylinder and the second oil cylinder. The first oil cylinder drives the outer formwork to rotate through the first parallelogram bracket, and the second oil cylinder drives the inner formwork to rotate through the second parallelogram bracket. The outer formwork and the inner formwork cooperate with each other to complete the wall pouring work.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention is provided with a connecting frame. When adjacent connecting frames are connected, the connecting block can be moved into the card slot. Under the action of the second spring, the conical sleeve is pushed to move, so that the first straight surface of the conical sleeve contacts the first straight surface of the card block, thereby realizing the fixing of the connecting frame. When disassembly is required, the connecting block can be continued to move into the card slot, so that the conical card block jumps over the card block and engages in the conical sleeve. At this time, the conical card block moves outward, which can drive the conical sleeve to move out of the card slot, thereby realizing the disassembly of the connecting frame. The operation is convenient. Only the movement of the connecting frame is required to realize the connection of the connecting frame, thereby realizing the adjustment of the frame width. It can be used universally in culverts of different span sizes, saving construction cost and time cost.

[0025] 2. The present invention also provides a sliding sleeve. By moving the sliding sleeve into the through hole of the connecting frame and the limiting hole of the frame body, the sliding rod can be driven to reset under the action of the fourth spring, so that the limiting ball moves to one side of the limiting part. At this time, the limiting ball moves out of the sliding sleeve, and the limiting ball and the fixed block cooperate with each other to realize the connection between the frame body and the connecting frame. The operation is convenient. Only the sliding rod needs to be pulled to realize the adjustment of the frame body width in a small range and the adjustment of any construction span.

[0026] 3. The present invention also provides a parallelogram bracket, which can be driven to rotate by the oil cylinder, which is beneficial to the rotation characteristics of the parallelogram, so that the inner formwork and the outer formwork are lifted and moved outward at the same time, and the height of the inner formwork and the outer formwork can be adjusted while the formwork is removed, which is convenient for driving the frame to move by the walking wheels. When pouring, the inner formwork and the outer formwork can be moved to a position where the bottom surface of the walking wheels is coplanar, so that the inner formwork and the outer formwork can fall completely onto the culvert bottom plate, which is convenient for pouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which:

[0028] Figure 1 This is the overall front view of the present invention;

[0029] Figure 2 yes Figure 1 Schematic diagram of the structure in direction A (in working state);

[0030] Figure 3 yes Figure 1 Schematic diagram of the structure in direction A;

[0031] Figure 4 yes Figure 1 Schematic diagram of the structure in direction B.

[0032] Description of the accompanying drawings:

[0033] 1 frame; 11 walking wheel; 12 limiting hole; 2 connecting frame; 21 slot; 3 outer template; 31 first connecting rod; 32 first oil cylinder; 33 fixed cone; 4 inner template; 41 second connecting rod; 42 second oil cylinder; 5 culvert bottom plate; 51 wall; 6 slide plate; 61 first spring; 62 block; 63 second spring; 7 connecting block; 71 cavity; 72 conical sleeve; 73 third spring; 74 telescopic rod; 75 conical block; 8 sliding sleeve; 81 sliding rod; 82 fourth spring; 83 limiting ball; 84 groove; 85 limiting part. DETAILED DESCRIPTION

[0034] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0035] Reference Attachment Figure 1-4 This embodiment proposes a walking trolley for rapid construction of culverts, including two frames 1. The frame 1 is connected to a walking wheel 11. A plurality of walking wheels 11 can be provided. The frame 1 can be controlled to move by the walking wheel 11. The walking wheel 11 with a self-locking function can be used to realize the braking work after the frame 1 moves. At the same time, the walking wheel 11 can also be connected to a motor, and the motor drives the walking wheel 11 to rotate to realize the movement of the frame 1.

[0036] The frame 1 is rotatably connected to the outer template 3 through two groups of first parallelogram brackets. A first connecting rod is connected between the two groups of first parallelogram brackets. The first connecting rod is hinged to the first oil cylinder 32. The other end of the first oil cylinder 32 is hinged to the frame 1. When the first oil cylinder 32 is working, it can drive the first connecting rod to move, and then drive the first parallelogram bracket to rotate, thereby realizing the movement of the outer template 3.

[0037] The first parallelogram bracket includes two first connecting rods 31, one end of which is hinged to the outer template 3 and the other end of which is hinged to the frame 1. The two first connecting rods 31 are arranged in parallel, and the first cylinder 32, the first connecting rods 31, and the frame 1 cooperate to form a triangular shape. The first connecting rod is connected between the two first connecting rods 31 located above and can be located in the middle of the first connecting rods 31.

[0038] The frame 1 is rotatably connected to the inner template 4 through two groups of second parallelogram brackets. A second connecting rod is connected between the two groups of second parallelogram brackets. The second connecting rod is hinged to the second oil cylinder 42. The other end of the second oil cylinder 42 is hinged to the frame 1. When the second oil cylinder 42 is working, it can drive the second connecting rod to move, and then drive the second parallelogram bracket to rotate, thereby realizing the movement of the inner template 4.

[0039] The second parallelogram bracket includes two second connecting rods 41, one end of which is hinged to the inner template 4 and the other end of which is hinged to the frame body 1. The two second connecting rods 41 are arranged in parallel, and the second oil cylinder 42, the second connecting rods 41 and the frame body 1 cooperate to form a triangular shape. The second connecting rod is connected between the two second connecting rods 41 located above, and the second connecting rod can be located in the middle of the second connecting rods 41.

[0040] The first parallelogram support and the second parallelogram support have opposite inclination directions. Taking one of the frames 1 as an example, the first oil cylinder 32 and the second connecting rod 41 have the same inclination direction, and the second oil cylinder 42 and the first connecting rod 31 have the same inclination direction.

[0041] When the second oil cylinder 32 rotates, it can drive the outer template 3 to move outward. When the second oil cylinder 42 rotates, it can drive the inner template 4 to move inward. At the same time, the heights of the outer template 3 and the inner template 4 rise, thereby realizing demolding. At this time, the heights of the outer template 3 and the inner template 4 are higher than the bottom surface of the walking wheel 11, and will not affect the normal walking of the frame 1.

[0042] A single oil cylinder can be used to drive the template to move horizontally and vertically at the same time. By utilizing the characteristics of the parallelogram itself, the outer template 3 and the inner template 4 are always kept in a vertical direction. The bottom end of the outer template 3 is also threaded with a fixing cone 33, which can be screwed into the culvert bottom plate 5 through the fixing cone 33, which is conducive to maintaining the vertical direction of the outer template 3 and facilitating the pouring of the wall 51. In addition, the oil cylinder, connecting rod and frame can also form a triangular structure, which is conducive to maintaining the stability of the parallelogram support and preventing it from shaking.

[0043] To adjust the distance between the outer and inner formworks 3 and 4, the frame 1 is also slidably connected to a vertical plate, which is connected to the frame 1 via a third oil cylinder. The other ends of the second connecting rod 41 and the second oil cylinder 42 are both hinged to the vertical plate. When the third oil cylinder is in operation, it can drive the vertical plate to slide horizontally, thereby driving the inner formwork 4 to move horizontally, achieving adjustment of the distance between the outer and inner formworks 3 and 4 to accommodate different casting widths.

[0044] A connecting frame 2 is detachably connected between the two frames 1. A slot 21 is provided at one end of the connecting frame 2. A horizontally sliding slide 6 and a vertically sliding block 62 are provided in the slot 21. The slide 6 is connected to the connecting frame 2 through a second spring 63, and the block 62 is connected to the connecting frame 2 through a first spring 61.

[0045] The second spring 63 is arranged between the slide plate 6 and the connecting frame 2. One end of the second spring 63 is connected to the connecting frame 2, and the other end of the second spring 63 is connected to the slide plate 6. The slide plate 6 can only slide in the horizontal direction. The second spring 63 is used for resetting the slide plate 6. In the initial state, under the action of the second spring 63, the slide plate 6 is located on one side of the block 62.

[0046] Slide grooves are provided at the upper and lower ends of the connecting frame 2, and the block 62 is slidably set in the slide groove. The first spring 61 is set between the block 62 and the connecting frame 2. One end of the first spring 61 is connected to the block 62, and the other end of the first spring 61 is connected to the connecting frame 2. The first spring 61 is used for resetting the block 62. In the initial state, under the action of the first spring 61, one end of the block 62 moves out of the slide groove and is slidably set in the slot 21.

[0047] The other end of the connecting frame 2 is fixedly connected to a connecting block 7, a cavity 71 is provided in the connecting block 7, a conical clamping block 75 that slides horizontally is provided in the cavity 71, the conical clamping block 75 is connected to the connecting block 7 through a third spring 73, and a conical sleeve 72 adapted to the conical clamping block 75 is fixedly connected to the outer wall of the connecting block 7, and the conical clamping block 75 is arranged between the conical sleeve 72 and the connecting frame 2.

[0048] The conical clamping block 75 is fixedly connected to the telescopic rod 74, the other end of the telescopic rod 74 is fixedly connected to the connecting block 7, the third spring 73 is sleeved on the telescopic rod 74, one end of the third spring 73 is connected to the conical clamping block 75, and the other end of the third spring 73 is connected to the connecting block 7.

[0049] Under the action of the telescopic rod 74, the conical block 75 can only slide in the horizontal direction, and the third spring 73 is always in a compressed state. Under the action of the third spring 73, the conical block 75 and the connecting block 7 are in contact. At this time, the gap between the conical block 75 and the conical sleeve 7 is slightly larger than the width of the block 62.

[0050] A first straight surface is provided on one side of the conical sleeve 72 close to the conical block 75 , a first inclined surface is provided on the other side of the conical sleeve 72 , a second straight surface is provided on one side of the block 72 close to the slide 6 , and a second inclined surface is provided on the other side of the block 72 .

[0051] The elastic force of the second spring 63 is much greater than the elastic force of the third spring 73. When the conical sleeve 72 drives the clamping block 62 to move, the conical sleeve 72 can jump over the clamping block 62. At this time, the first straight surface of the conical sleeve 72 and the second straight surface of the clamping block 62 are in contact, and the adjacent connecting frames 2 can be connected.

[0052] As the connecting frame 2 moves, the conical block 75 can jump over the block 62. At this time, since the elastic force of the second spring 63 is greater, when the connecting frame 2 is pulled outward, the third spring 73 will be compressed first, and a conical groove is opened on a straight surface of the conical sleeve 72. At this time, the conical block 75 can be engaged in the conical groove of the conical sleeve 72. The distance between the two end points of the conical block 75 is slightly larger than the distance between the two end points of the conical sleeve 72, which makes it easy for the conical block 75 to drive the conical sleeve 72 to jump over the block 62.

[0053] When connecting adjacent connecting frames 2, taking into account the weight of the connecting frames 2 themselves, walking wheels can be added to the bottom of the connecting frames 2, or a walking trolley can be used to place the connecting frames 2 on the walking trolley to facilitate the movement of the connecting frames 2, thereby realizing the assembly between adjacent connecting frames 2 and the adjustment of the width of the frame body 1.

[0054] It also includes a sliding sleeve 8, the connecting frame 2 is provided with a through hole for the sliding sleeve 8 to pass through, and the frame body 1 is provided with a plurality of limiting holes 12 for the sliding sleeve 8 to pass through; a sliding rod 81 that slides in the vertical direction and a plurality of limiting balls 83 that slide in the horizontal direction are provided in the sliding sleeve 8, the sliding rod 81 is provided between the limiting balls 83, and the sliding rod 81 is provided with a groove 84 that is adapted to the limiting balls 83.

[0055] When connecting the frame 1 and the connecting frame 2, the frame 1 is moved between the connecting frames 2, and the sliding sleeve 8 is sequentially inserted through the through hole of the connecting frame 2, the limiting hole 12 of the frame 1, and the through hole on the other side of the connecting frame 2. By providing a plurality of limiting holes 12, the sliding sleeve 8 can be inserted into the limiting holes 12, which can achieve a small range of adjustment of the width of the frame 1, achieve precise adjustment of the width of the frame 1, and achieve adjustment of any construction span.

[0056] The sliding sleeve 8 adopts an open structure at one end, and one end of the sliding rod 81 is connected to a handle after passing through the opening of the sliding sleeve 8. The sliding rod 81 is connected to the sliding sleeve 8 through a fourth spring 82; the sliding sleeve 8 is fixedly connected to a fixed block, and the frame 1 is arranged between the fixed block and the limiting ball 83.

[0057] The slide rod 81 includes a limiting portion 85, and grooves 84 are provided on both sides of the limiting portion 85. The fourth spring 82 is used for resetting the slide rod 81. When the fourth spring 82 is at its original length, the limiting ball 83 and the limiting portion 85 are in contact, and one end of the limiting ball 83 is located outside the sliding sleeve 8. At this time, the distance between the limiting balls 83 is greater than the aperture of the limiting hole 12. The sliding sleeve 8 is connected to a stop block to prevent the limiting ball 83 from completely moving out of the sliding sleeve 8.

[0058] The fourth spring 82 is disposed within the fixed block and sleeved onto the slide bar 81. One end of the fourth spring 82 is connected to the slide bar 81, and the other end of the fourth spring 82 is connected to the fixed block. The diameter of the through hole of the connecting frame 2 is the same as the diameter of the limiting hole 12, and the width of the fixed block is greater than the diameter of the limiting hole 12.

[0059] The application further provides a method for using the walking type trolley for rapid construction of a culvert.

[0060] When the width of the frame body 1 needs to be increased:

[0061] The connecting frame 2 with a specified size is selected, the connecting block 7 is moved to the clamping groove 21, and the clamping block 62 is moved inward under the action of the conical sleeve 72, so that the first spring 61 is compressed, the conical sleeve 72 is moved to the position between the clamping block 62 and the sliding plate 6, the sliding plate 6 and the connecting block 7 are in contact, the second spring 63 is in a compressed state, the conical sleeve 72 and the clamping block 62 are in contact, the connecting work of the adjacent connecting frame 2 is realized, and the width of the frame body 1 is increased.

[0062] When the width of the frame body 1 needs to be reduced:

[0063] The connecting frame 2 is moved, the connecting block 7 is continuously moved to the clamping groove 21, the first spring 61 is further compressed, the clamping block 62 is moved inward under the action of the conical clamping block 75, the first spring 61 is compressed, the conical clamping block 75 is moved to the position between the conical sleeve 72 and the clamping block 62, the connecting frame 2 is moved outward, the conical clamping block 75 is clamped in the conical sleeve 72, the third spring 73 is compressed, the conical clamping block 75 drives the conical sleeve 72 to move out of the clamping groove 21, the dismounting work of the adjacent connecting frame 2 is realized, and the width of the frame body 1 is reduced.

[0064] When the frame body 1 needs to be connected with the connecting frame 2:

[0065] The connecting frame 2 is moved, the through hole of the connecting frame 2 is moved to one side of the limiting hole 12 of the frame body 1, the sliding sleeve 8 is inserted into the through hole and the limiting hole 12, the limiting ball 83 is moved into the groove 84 under the action of the pressing sliding rod 81, the sliding sleeve 8 penetrates through the through hole and the limiting hole 12, the sliding rod 81 is moved under the action of the fourth spring 82, the limiting ball 83 is moved to the outer side of the sliding sleeve 8, the fixing block and the limiting ball 83 are matched with each other, and the frame body 1 and the connecting frame 2 are connected.

[0066] The first oil cylinder 32 and the second oil cylinder 42 are started, the first oil cylinder 32 drives the outer formwork 3 to rotate through the first parallelogram support, the second oil cylinder 42 drives the inner formwork 4 to rotate through the second parallelogram support, the outer formwork 3 and the inner formwork 4 are matched with each other, and the pouring work of the wall body 51 is completed.

[0067] When the locking cam 75 is in the unlocked position, the locking cam 75 is in the unlocked position, and the locking cam 75 is in the unlocked position, so that the locking cam 75 is locked and the locking cam 75 is unlocked, thereby freeing the locking cam 75 from the locking cam 75. When the locking cam 75 is in the unlocked position, the locking cam 75 is unlocked and the locking cam 75 is unlocked.

[0068] In addition, by moving the sliding sleeve 8 into the through hole of the connecting frame 2 and the limiting hole 12 of the frame body 1, under the action of the fourth spring 82, the sliding rod 81 can be driven to reset, so that the limiting ball 83 moves to the side of the limiting part 85. At this time, the limiting ball 83 moves out of the sliding sleeve 8, and the limiting ball 85 and the fixed block cooperate with each other to realize the connection between the frame body 1 and the connecting frame 2. The operation is convenient. You only need to pull the sliding rod 81 to realize the adjustment of the width of the frame body 1 in a small range, and realize the adjustment of any construction span.

[0069] In addition, a parallelogram bracket is also provided, which can be driven to rotate by the oil cylinder, which is beneficial to the rotation characteristics of the parallelogram, so that the inner formwork 4 and the outer formwork 3 are lifted and moved outward at the same time, and the height of the inner formwork 4 and the outer formwork 3 can be adjusted while the mold is removed, which is convenient for driving the frame 1 to move by the walking wheel 11. When pouring, the inner formwork 4 and the outer formwork 3 can be moved to a position where the bottom surface of the walking wheel 11 is coplanar, so that the inner formwork 4 and the outer formwork 3 fall completely onto the culvert bottom plate 5, which is convenient for pouring.

[0070] When connecting the frame 1 and the connecting frame 2, when the through hole of the connecting frame 2 moves to the side of the limiting hole 12, the handle presses the slide rod 81, thereby driving the entire sliding sleeve 8 to move into the hole, causing the limiting ball 83 to move into the groove 84 near the handle, making it easier to push the sliding sleeve 8. When pulling the sliding sleeve 8 outward, the handle causes the slide rod 81 to slide, thereby driving the entire sliding sleeve 8 outward from the hole. At this time, the limiting ball 83 moves into the groove 84 away from the handle, making it easier to remove the sliding sleeve.

[0071] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A method for using a walking trolley for rapid culvert construction, wherein the walking trolley for rapid culvert construction comprises two frames (1), wherein the frames (1) are connected with walking wheels (11), and wherein: A connecting frame (2) is detachably connected between the two frames (1); the frame (1) is rotatably connected to an outer template (3) via two groups of first parallelogram brackets; a first connecting rod is connected between the two groups of first parallelogram brackets; the first connecting rod is hinged to a first oil cylinder (32); the other end of the first oil cylinder (32) is hinged to the frame (1); the frame (1) is rotatably connected to an inner template (4) via two groups of second parallelogram brackets; a second connecting rod is connected between the two groups of second parallelogram brackets; the second connecting rod is hinged to a second oil cylinder (42); the other end of the second oil cylinder (42) is hinged to the frame (1); the first parallelogram bracket and the second parallelogram bracket have opposite inclination directions; The following steps are involved: When the width of the frame (1) needs to be increased: A connecting frame (2) of a specified size is selected, and one end of the connecting block (7) is moved into the card slot (21) by moving the connecting frame (2). As the connecting block (7) moves, the card block (62) is driven to move inward under the action of the conical sleeve (72), so that the first spring (61) is compressed, thereby causing the conical sleeve (72) to move between the card block (62) and the slide (6). At this time, the slide (6) and the connecting block (7) are in contact, so that the second spring (63) is in a compressed state. After the conical sleeve (72) and the card block (62) are in contact, the connection work of the adjacent connecting frames (2) is achieved, thereby achieving the increase in the width of the frame body (1); When the width of the frame (1) needs to be reduced: By moving the connecting frame (2), the connecting block (7) continues to move into the slot (21), so that the first spring (61) is further compressed. Under the action of the conical clamping block (75), the clamping block (62) is driven to move inward, so that the first spring (61) is compressed, and the conical clamping block (75) is moved between the conical sleeve (72) and the clamping block (62). The connecting frame (2) is moved outward, so that the conical clamping block (75) is engaged in the conical sleeve (72), so that the third spring (73) is compressed, and the conical clamping block (75) drives the conical sleeve (72) to move out of the slot (21), thereby realizing the disassembly of the adjacent connecting frame (2), thereby completing the reduction of the width of the frame body (1); When the frame (1) and the connecting frame (2) need to be connected: By moving the connecting frame (2), the through hole of the connecting frame (2) is moved to the side of the limiting hole (12) of the frame body (1), and the sliding sleeve (8) is inserted into the through hole and the limiting hole (12). As the sliding rod (81) is pressed, the limiting ball (83) is moved into the groove (84), so that the sliding sleeve (8) passes through the through hole and the limiting hole (12). Under the action of the fourth spring (82), the sliding rod (81) is driven to move, so that the limiting ball (83) moves to the outside of the sliding sleeve (8), and the fixed block and the limiting ball (83) cooperate with each other to realize the connection between the frame body (1) and the connecting frame (2); The first oil cylinder (32) and the second oil cylinder (42) are started. The first oil cylinder (32) drives the outer template (3) to rotate via the first parallelogram bracket. The second oil cylinder (42) drives the inner template (4) to rotate via the second parallelogram bracket. The outer template (3) and the inner template (4) cooperate with each other, thereby completing the pouring work of the wall (51).

2. The method for using a walking trolley for rapid culvert construction according to claim 1, characterized in that: The first parallelogram bracket includes two first connecting rods (31), one end of the first connecting rod (31) is hinged to the outer template (3), and the other end of the first connecting rod (31) is hinged to the frame body (1), the two first connecting rods (31) are arranged in parallel, and the first oil cylinder (32), the first connecting rod (31) and the frame body (1) cooperate with each other to form a triangular shape.

3. The method for using a walking trolley for rapid culvert construction according to claim 2, characterized in that: The second parallelogram bracket includes two second connecting rods (41), one end of the second connecting rod (41) is hinged to the inner template (4), and the other end of the second connecting rod (41) is hinged to the frame body (1), the two second connecting rods (41) are arranged in parallel, and the second oil cylinder (42), the second connecting rod (41) and the frame body (1) cooperate with each other to form a triangular shape.

4. The method for using a walking trolley for rapid culvert construction according to claim 3 is characterized in that: A slot (21) is provided at one end of the connecting frame (2), and a slide plate (6) that slides horizontally and a block (62) that slides vertically are provided in the slot (21). The slide plate (6) is connected to the connecting frame (2) via a second spring (63), and the block (62) is connected to the connecting frame (2) via a first spring (61).

5. The method for using a walking trolley for rapid culvert construction according to claim 4, characterized in that: The other end of the connecting frame (2) is fixedly connected to a connecting block (7), a cavity (71) is provided in the connecting block (7), a conical clamping block (75) that slides in a horizontal direction is provided in the cavity (71), the conical clamping block (75) is connected to the connecting block (7) via a third spring (73), a conical sleeve (72) adapted to the conical clamping block (75) is fixedly connected to the outer wall of the connecting block (7), the conical clamping block (75) is provided between the conical sleeve (72) and the connecting frame (2), and the elastic force of the second spring (63) is greater than the elastic force of the third spring (73).

6. The method for using a walking trolley for rapid culvert construction according to claim 5, characterized in that: The conical clamping block (75) is fixedly connected to a telescopic rod (74), the other end of the telescopic rod (74) is fixedly connected to the connecting block (7), the third spring (73) is sleeved on the telescopic rod (74), one end of the third spring (73) is connected to the conical clamping block (75), and the other end of the third spring (73) is connected to the connecting block (7).

7. The method for using a walking trolley for rapid culvert construction according to claim 6, characterized in that: A first straight surface is provided on one side of the conical sleeve (72) close to the conical clamping block (75), and a first inclined surface is provided on the other side of the conical sleeve (72). A second straight surface is provided on one side of the clamping block (62) close to the slide plate (6), and a second inclined surface is provided on the other side of the clamping block (62).

8. The method for using a walking trolley for rapid culvert construction according to claim 7, characterized in that: The invention also includes a sliding sleeve (8), the connecting frame (2) is provided with a through hole for the sliding sleeve (8) to pass through, and the frame body (1) is provided with a plurality of limiting holes (12) for the sliding sleeve (8) to pass through; a sliding rod (81) that slides in a vertical direction and a plurality of limiting balls (83) that slide in a horizontal direction are provided in the sliding sleeve (8), the sliding rod (81) is provided between the limiting balls (83), and the sliding rod (81) is provided with a groove (84) that is adapted to the limiting balls (83).

9. The method for using a walking trolley for rapid culvert construction according to claim 8, characterized in that: One end of the slide rod (81) passes through the slide sleeve (8), and the slide rod (81) is connected to the slide sleeve (8) via a fourth spring (82); the slide sleeve (8) is fixedly connected to a fixed block, and the frame (1) is arranged between the fixed block and the limiting ball (83); the slide rod (81) includes a limiting portion (85), and the grooves (84) are arranged on both sides of the limiting portion (85). When the limiting ball (83) and the limiting portion (85) are in contact, one end of the limiting ball (83) is located outside the slide sleeve (8).

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