A bridge bottom construction tool conveying device

Abstract

This invention relates to the field of material handling equipment technology, specifically a bridge bottom construction tool conveying device, comprising a main frame, a drive assembly, and a carrying frame. A traveling assembly is located at the bottom of the main frame, and a movable part capable of rising and falling along the height of the main frame is located on the front of the main frame. The drive assembly is mounted on the main frame and is used to drive the movable part to rise and fall. The carrying frame is fixedly connected to the movable part. The carrying frame in this invention has two forms: one is a complete box shape for conveying small tools, and the other is an open-sided shape for conveying long tools. Compared to traditional lifting and conveying devices, this invention offers more flexible and diverse usage options and can be applied to more working conditions.

Description

Technical Field

[0001] This invention relates to the field of material handling equipment technology, specifically to a conveying device for construction tools at the bottom of a bridge. Background Technology

[0002] In bridge construction and subsequent maintenance, since the work area is concentrated at the bottom of the bridge, multiple layers of scaffolding are usually erected as working platforms. Construction workers must climb to the designated positions on the scaffolding to carry out their work. Various tools are frequently used during construction, including manual and power tools such as wrenches and electric drills, as well as precision surveying instruments such as levels and total stations. If construction workers rely on manually carrying these tools up the scaffolding, firstly, the tools are prone to slipping during the climb; secondly, the limited number of tools that can be carried necessitates multiple trips, severely impacting construction efficiency.

[0003] Current vertical lifting and transport devices for bridge bottom construction typically consist of two parts: a carrying frame and a powered lifting mechanism. The powered lifting mechanism often uses a scissor lift assembly, which extends and retracts via hydraulic or electric drive, thereby raising and lowering the carrying frame. In practical applications, workers first place the necessary tools into the carrying frame, then the powered lifting mechanism raises the frame to the required construction height at the bottom of the bridge. Finally, workers on the scaffolding retrieve the tools directly from the carrying frame for use.

[0004] However, during bridge construction, long tools such as steel pipes are frequently used. These tools often exceed the longitudinal or transverse dimensions of existing carrying frames, making it impossible to place them completely inside. Instead, they must be leaned against the inside of the frame. This method not only significantly limits the amount of tools the carrying frame can transport at a time but also poses significant safety hazards. Especially when the carrying frame sways due to wind or vibrations from the lifting mechanism during ascent, the leaning long tools are prone to losing balance and slipping off the edge of the frame, causing damage to the tools and potentially serious injury to personnel and equipment in the construction area below. Therefore, this invention proposes a bridge bottom construction tool conveying device to effectively solve the above-mentioned drawbacks. Summary of the Invention

[0005] The purpose of this invention is to provide a bridge bottom construction tool conveying device to solve the problems mentioned in the background art.

[0006] This invention is achieved through the following technical solution: a bridge bottom construction tool conveying device, comprising:

[0007] The main frame has a walking assembly at its bottom and a movable part on its front that can move up and down along the height direction of the main frame.

[0008] A drive assembly, which is mounted on the main frame, is used to drive the movable part to rise and fall;

[0009] A carrying frame, wherein the carrying frame is fixedly connected to the movable part;

[0010] The container frame is a rectangular hollow open structure. The left and right side walls of the container frame are symmetrically provided with movable openings. The inner bottom of each movable opening is hinged with a flip plate. The inner surface of the flip plate is symmetrically provided with two limiting rods along the front-back direction. One end of the limiting rod is hinged to the flip plate.

[0011] When the flip plate is in a vertical position, the limiting rod is parallel to the flip plate; when the flip plate unfolds outward to a horizontal position, the limiting rod is in a vertically upward position.

[0012] Optionally, the front side of the carrying frame is provided with a retrieval opening, and a door is hinged to the retrieval opening.

[0013] Optionally, the inner surface of the flip plate is provided with hinge seats corresponding to the limiting rods, and the bottom end of the limiting rod is fixedly provided with a hinge shaft, which is hinged to the corresponding hinge seat.

[0014] Optionally, a winding wheel is fixedly mounted on the outside of the hinge shaft, and connecting blocks are fixedly provided on the front and rear sides of the left and right side walls inside the loading frame. A traction rope is wound on the winding wheel, and the other end of the traction rope is connected to the corresponding connecting block.

[0015] When the flip plate is in a vertical position, the traction rope is slack; when the flip plate is unfolded outward to a horizontal position, the traction rope is taut, and the winding wheel can rotate 90° under the action of the traction rope.

[0016] Optionally, a torsion spring is fitted around the hinge shaft, with its two ends connected to the hinge seat and the winding wheel, respectively. When the traction rope is slack, the torsion spring can keep the limiting rod parallel to the flipping plate.

[0017] Optionally, a buffer part is elastically connected to one side of the limiting rod via a spring. When the flip plate is in a vertical position, the buffer part is located on the side of the limiting rod facing the inside of the loading frame.

[0018] Optionally, the limiting rod includes a rotating body, a main shaft, and a protective rod. The rotating body is hinged to a hinge seat via a hinge shaft. The main shaft is rotatably disposed at the end of the rotating body. The protective rod is fixed to the end of the main shaft. The buffer part is elastically connected to the protective rod. A bevel gear is fixedly fitted on the outside of the main shaft.

[0019] The inner surface of the flip plate and one side of the hinge seat is provided with a mating part. The surface of the mating part is provided with an arc-shaped rack that meshes with the bevel gear. When the flip plate rotates from a vertical position to a horizontal position, the bevel gear rotates 90° and the two buffer parts on the same flip plate are arranged opposite each other.

[0020] Optionally, the outer surface of the flip plate is provided with a first positioning piece, and the outer surfaces of the left and right side walls of the carrying frame are provided with a second positioning piece. When the flip plate is rotated to a horizontal position, the first positioning piece and the second positioning piece are aligned and distributed, and are connected to each other by bolts.

[0021] Optionally, the main frame includes two vertical beams, and the movable part is slidably connected to both vertical beams.

[0022] Optionally, the walking assembly includes a walking frame and a plurality of walking wheels mounted on the walking frame, and the main frame is fixedly disposed on the top surface of the walking frame.

[0023] Compared with the prior art, the present invention provides a bridge bottom construction tool conveying device, which has the following beneficial effects:

[0024] 1. The carrying frame in this invention has two forms: one is a complete box shape for conveying small tools, and the other is an open shape on both sides for conveying long tools. Compared with traditional lifting and conveying devices, the present invention is more flexible and versatile in its use and can be used in more working conditions.

[0025] 2. After the flip plates on both sides of the loading frame in this invention are unfolded, the two limiting rods on their inner surfaces can also automatically maintain a vertical posture, so that long tools can be stably placed between the two limiting rods.

[0026] 3. In this invention, a buffer part is elastically connected to one side of the limiting rod. The function of the buffer part is to prevent rigid collisions between the tool and the limiting rod or the flip plate when the tool shakes, which helps to protect the conveyed tool. Attached Figure Description

[0027] Figure 1 This is a side view of the structure of the present invention;

[0028] Figure 2 This is a front view of the structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the unfolded state of the carrier frame of the present invention;

[0030] Figure 4 This is a cross-sectional view of the unfolded container frame of the present invention;

[0031] Figure 5 This is a cross-sectional view of the closed state of the loading frame of the present invention;

[0032] Figure 6 This is a schematic diagram of the limiting rod structure of the present invention;

[0033] Figure 7 for Figure 1 Enlarged view of point A in the middle;

[0034] Figure 8 for Figure 3 Enlarged view of point B in the middle;

[0035] Figure 9 for Figure 4 Enlarged view of the corresponding area at point C.

[0036] In the diagram: 100, main frame; 101, walking assembly; 1011, walking frame; 1012, walking wheel; 102, moving part; 200, drive assembly; 300, cargo frame; 301, cargo door; 302, flipping plate; 303, limit rod; 3031, rotating body; 3032, main shaft; 3033, guard rod; 304, hinge seat; 305, hinge shaft; 306, first positioning plate; 307, second positioning plate; 308, winding wheel; 309, connecting block; 310, traction rope; 311, torsion spring; 312, buffer part; 313, mating part; 314, bevel gear; 315, arc rack. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figure 1 - Figure 9 A bridge bottom construction tool conveying device includes a main frame 100, a drive assembly 200, and a loading frame 300. The main frame 100 has a walking assembly 101 at its bottom and a movable part 102 on its front that can move up and down along the height of the main frame 100. Specifically, the walking assembly 101 includes a walking frame 1011 and several walking wheels 1012 mounted on the walking frame 1011. The main frame 100 is fixedly mounted on the top surface of the walking frame 1011. The main frame 100 includes two vertical beams, and the movable part 102 is slidably connected to both vertical beams. That is, the movable part 102 can move up and down along the vertical beams.

[0039] On the other hand, the drive assembly 200 is mounted on the main frame 100 and is used to drive the movable part 102 to rise and fall. Specifically, in this embodiment, the drive assembly 200 can be an electric actuator or a hydraulic actuator. Taking a hydraulic actuator as an example, the drive assembly includes a piston pump, a cylinder and related connecting accessories. The operator can control the piston pump by operating the handle, and the cylinder can convert the oil pressure input by the piston pump into mechanical energy. The movable end of the cylinder is connected to the movable part 102 through the connecting accessories to directly drive the movable part 102 to rise and fall.

[0040] Furthermore, the front side of the loading frame 300 is provided with a retrieval opening, and a door 301 is hinged at the retrieval opening. There are two doors 301, and the two doors 301 are hinged symmetrically on the left and right sides to facilitate the staff to put in or take out tools.

[0041] In this embodiment, the carrying frame 300 is fixedly connected to the movable part 102. The carrying frame 300 has a rectangular hollow, open-top structure. The left and right side walls of the carrying frame 300 have symmetrically arranged movable openings. A flip plate 302 is hinged to the inner bottom end of each movable opening. Two limiting rods 303 are symmetrically arranged on the inner surface of the flip plate 302 along the front-back direction. One end of each limiting rod 303 is hinged to the flip plate 302. When the flip plate 302 is in a vertical position, the limiting rods 303 are parallel to the flip plate 302. When the flip plate 302 is unfolded outwards to a horizontal position, the limiting rods 303 are in a vertically upward position. Specifically, the bottom end of the movable opening is higher than the inner bottom surface of the carrying frame 300. The flip plate 302 is rectangular, and when the flip plate 302 is in a vertical position, its top end is flush with the top end of the carrying frame 300.

[0042] In addition, a positioning pin is provided on the outer surface of the carrying frame 300, on the side outside the movable opening. A pin sleeve is fixedly provided on the outer surface of the flip plate 302. When the flip plate 302 is in a vertical position, the vertical position of the flip plate 302 can be fixed by inserting the positioning pin into the pin sleeve. A first positioning piece 306 is provided on the outer surface of the flip plate 302, and a second positioning piece 307 is provided on the outer surface of the left and right side walls of the carrying frame 300. When the flip plate 302 is rotated to a horizontal position, the first positioning piece 306 and the second positioning piece 307 are aligned and connected by bolts. Specifically, a positioning bolt is threaded onto the first positioning piece 306, and a positioning hole is provided on the second positioning piece 307. By rotating the positioning bolt, the end of the bolt can be inserted into the positioning hole.

[0043] Furthermore, the inner surface of the flip plate 302 is provided with hinge seats 304 corresponding to the limiting rods 303 one by one. The bottom end of the limiting rods 303 is fixedly provided with a hinge shaft 305, which is hinged to the corresponding hinge seat 304. A winding wheel 308 is fixedly fitted on the outside of the hinge shaft 305. Connecting blocks 309 are fixedly provided on the front and rear sides of the left and right side walls inside the loading frame 300. A traction rope 310 is wound on the winding wheel 308, and the other end of the traction rope 310 is connected to the corresponding connecting block 309. When the flip plate 302 is in a vertical position, the traction rope 310 is in a slack state. When the flip plate 302 is unfolded outward to a horizontal position, the traction rope 310 is in a taut state, and the winding wheel 308 can rotate 90° under the action of the traction rope 310. In other words, when the flip plate 302 is in a vertical position, the limit rod 303 is also in a vertical position and fits against the inner surface of the flip plate 302. Then, as the flip plate 302 flips outward, the traction rope 310 will gradually straighten, and finally pull the winding wheel 308 and the limit rod 303 to rotate.

[0044] It should be added that a torsion spring 311 is externally fitted to the hinge shaft 305. The two ends of the torsion spring 311 are connected to the hinge seat 304 and the winding wheel 308, respectively. When the traction rope 310 is in a slack state, the torsion spring 311 can keep the limiting rod 303 parallel to the flipping plate 302. Specifically, positioning blocks are protruding on the outer surfaces of the hinge seat 304 and the winding wheel 308, and shaft holes are formed through the positioning blocks. The two ends of the torsion spring 311 can pass through the shaft holes on the two positioning blocks, respectively. Therefore, when the flipping plate 302 is not subjected to external force, the torsion spring 311 can make the limiting rod 303 fit against the flipping plate 302.

[0045] In summary, in the specific application of this embodiment, under normal conditions, the flip plate 302 is in a vertical position, and the carrying frame 300 is a complete box. Workers can place the tools to be transported into the carrying frame 300, and then control the carrying frame 300 to rise to a suitable height via the drive component 200. At this point, workers at a higher position can retrieve the tools from the carrying frame 300.

[0046] When the tool to be transported is long and narrow, such as a steel pipe or a wooden strip, the loading frame 300 obviously cannot accommodate the long and narrow tool. Therefore, the operator can unfold the two flip plates 302 to a horizontal position. During this process, the two limit rods 303 automatically remain vertical. Then the operator puts the tool on the flip plate 302 and places it between the two limit rods 303. Under the action of the limit rods 303, it can be ensured that the tool can be stacked along the height direction and will not fall, thereby increasing the load capacity of the flip plate 302.

[0047] Example 2: Please refer to Figure 1 - Figure 9A bridge bottom construction tool conveying device, the difference between this embodiment and the first embodiment is that: a buffer part 312 is elastically connected to one side of the limiting rod 303 by a spring. When the flip plate 302 is in a vertical position, the buffer part 312 is located on the side of the limiting rod 303 facing the inside of the loading frame 300. The limiting rod 303 includes a rotating body 3031, a main shaft 3032, and a protective rod 3033. The rotating body 3031 is hinged to the hinge seat 304 via a hinge shaft 305. The main shaft 3032 is rotatably mounted at the end of the rotating body 3031. The protective rod 3033 is fixed to the end of the main shaft 3032. The buffer part 312 is elastically connected to the protective rod 3033. Specifically, the main shaft 3032 is rotatably engaged with the rotating body 3031 via a bearing. The protective rod 3033 has a rectangular cross-section. When the limiting rod 303 remains parallel to the inner surface of the flip plate 302, the protective rod 3033 is in contact with the inner surface of the flip plate 302.

[0048] Furthermore, a bevel gear 314 is fixedly mounted on the outside of the main shaft 3032. A mating part 313 is provided on the inner surface of the flip plate 302 and on one side of the hinge 304. The surface of the mating part 313 is provided with an arc-shaped rack 315 that meshes with the bevel gear 314. When the flip plate 302 rotates from a vertical position to a horizontal position, the bevel gear 314 rotates 90°, and the two buffer parts 312 on the same flip plate 302 are arranged opposite to each other. That is, when the flip plate 302 is in a vertical position, the buffer parts 312 face the inside of the carrying frame 300; when the flip plate 302 is in a horizontal position, the two buffer parts 312 on the same flip plate 302 are arranged opposite to each other.

[0049] In this embodiment, the buffer portion 312 serves to prevent rigid collisions between the tool inside the carrying frame 300 and the inner wall of the carrying frame 300 when the flip plate 302 is in a vertical position. However, since the buffer portion 312 is relatively narrow, it may not provide adequate cushioning for some tools that are also narrow. Therefore, to increase the protective area of ​​the buffer portion 312, a thin plate can be inserted on both the left and right sides inside the carrying frame 300, and the plate should fit as closely as possible to the buffer portion 312. The width of the plate should be slightly smaller than the inner width of the carrying frame 300. When the tool inside the carrying frame 300 tilts to either side, it will hit the plate, thus achieving the cushioning protection function of the buffer portion 312.

[0050] When the flip plate 302 is in a horizontal position, the two buffer parts 312 are positioned opposite each other, and the tool located between the two limit rods 303 can directly contact the buffer part 312. The buffer part 312 can prevent rigid contact between the tool and the limit rod 303 during the tool lifting process, so it can also play a buffering and protective role.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bridge deck construction tool delivery apparatus, characterized by, The utility model relates to a kind of movable frame and movable frame drive mechanism, including: Main frame body (100), the bottom of the main frame body (100) is equipped with walking assembly (101), the front of the main frame body (100) is equipped with movable part (102) capable of lifting along the height direction of main frame body (100); Driving assembly (200), the driving assembly (200) is set on the main frame body (100), for driving movable part (102) to lift; Object carrier frame (300), the object carrier frame (300) is fixedly connected with movable part (102); Wherein, the object carrier frame (300) is hollow and lidless structure of rectangle, the left and right side walls of the object carrier frame (300) are symmetrically provided with movable mouth, the inner bottom end of movable mouth is hingedly provided with turnover plate (302), the inner surface of the turnover plate (302) is symmetrically provided with two limit rods (303) along the front-back direction, and the limit rod (303) is hingedly arranged between one end and the turnover plate (302); When the turnover plate (302) is in vertical posture, the limit rod (303) is parallel to the turnover plate (302);When the turnover plate (302) is unfolded to horizontal posture outward, the limit rod (303) is in vertical upward posture; The inner surface of the turnover plate (302) is provided with a corresponding hinge seat (304), and the bottom end of the limit rod (303) is fixedly provided with a hinge shaft (305), which is hingedly connected with the corresponding hinge seat (304); One side of the limit rod (303) is elastically connected with a buffer part (312) through a spring, when the turnover plate (302) is in vertical posture, the buffer part (312) is located on the side of the limit rod (303) towards the inside of the object carrier frame (300); The limit rod (303) includes a rotating body (3031), a main shaft (3032) and a protection rod (3033), the rotating body (3031) is hingedly connected with the hinge seat (304) through the hinge shaft (305), the main shaft (3032) is rotatably arranged at the end of the rotating body (3031), the protection rod (3033) is fixed to the end of the main shaft (3032), the buffer part (312) is elastically connected to the protection rod (3033), and the outer part of the main shaft (3032) is fixedly sleeved with a bevel gear (314); The inner surface of the turnover plate (302) and located on one side of the hinge seat (304) is provided with a matching part (313), the surface of the matching part (313) is provided with an arc-shaped rack (315) engaged with the bevel gear (314), when the turnover plate (302) is rotated from vertical posture to horizontal posture, the bevel gear (314) is rotated by 90 degrees, and the two buffer parts (312) located on the same turnover plate (302) are oppositely arranged.

2. A bridge deck construction tool delivery device according to claim 1, wherein: The front side of the object carrier frame (300) is provided with a taking port, and the warehouse door (301) is hingedly arranged at the taking port.

3. A bridge deck construction tool delivery device according to claim 1, wherein: The outer fixing sleeve of the hinge shaft (305) is provided with a winding wheel (308), the front and back sides of the left and right side walls inside the object carrying frame (300) are fixedly provided with connecting blocks (309), the winding wheel (308) is wound with a traction rope (310), and the other end of the traction rope (310) is connected with the corresponding connecting block (309); When the turnover plate (302) is in the vertical posture, the traction rope (310) is in the relaxed state; when the turnover plate (302) is unfolded outward to be in the horizontal posture, the traction rope (310) is in the straightened state, and the winding wheel (308) can rotate 90° under the action of the traction rope (310).

4. A bridge deck construction tool delivery device according to claim 3, wherein: The hinge shaft (305) is externally sleeved with a torsional spring (311), the two ends of the torsional spring (311) are respectively connected with the hinge base (304) and the winding wheel (308), and when the traction rope (310) is in the relaxed state, the torsional spring (311) can make the limiting rod (303) keep parallel with the turnover plate (302).

5. A bridge deck construction tool delivery device according to claim 1, wherein: The outer surface of the turnover plate (302) is provided with a first positioning piece (306), the outer surfaces of the left and right side walls of the object carrying frame (300) are provided with second positioning pieces (307), when the turnover plate (302) is rotated to the horizontal posture, the first positioning piece (306) and the second positioning pieces (307) are aligned and distributed, and the first positioning piece (306) and the second positioning pieces (307) are connected through bolts.

6. A bridge deck construction tool delivery device according to claim 1, wherein: The main frame body (100) comprises two vertical beams, and the movable part (102) is slidingly connected with the two vertical beams.

7. A bridge deck construction tool delivery device according to claim 1, wherein: The walking assembly (101) comprises a walking frame (1011) and a plurality of walking wheels (1012) mounted on the walking frame (1011), and the main frame body (100) is fixedly arranged on the top surface of the walking frame (1011).

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