Foldable bar transport turnover storage device
By designing a foldable bar transport and storage device, the bar turnover rack is folded using a hydraulic rod and a hinged structure, which solves the space occupation problem of fixed transport racks and improves the utilization rate of warehouse space.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN VALIN XIANGTAN IRON & STEEL CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-19
AI Technical Summary
Existing fixed bar transport racks occupy a large amount of warehouse or workshop space due to their non-folding nature during off-peak production seasons or equipment maintenance, resulting in waste of warehousing resources and low space utilization.
A foldable bar transport and storage device was designed. Through hydraulic rod drive and pivot hinge structure, the bar turnover rack can be folded to reduce its volume when idle, and synchronous transport is achieved through chain and sprocket transmission system.
It effectively reduces the size of the equipment when it is not in use, saves storage space, and is suitable for space optimization needs during off-peak production seasons or when equipment is replaced, thereby improving warehouse utilization.
Smart Images

Figure CN224376730U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bar processing technology, and in particular to a foldable bar transportation, turnover and storage device. Background Technology
[0002] In industries such as machinery manufacturing, construction, and metallurgical processing, bar stock serves as a fundamental raw material, and its transportation, turnover, and storage directly impact production efficiency and space utilization. Currently, the industry commonly uses fixed metal frame bar stock transport racks for these operations. These devices typically consist of integrally welded supports, beams, and limiting rods. While they can meet the load-bearing requirements of the bar stock, they have shortcomings in practical applications. The fixed structural dimensions of the fixed bar stock transport racks cannot be adjusted according to usage conditions. During off-peak production seasons, equipment maintenance, or changes in bar stock specifications, a large number of idle transport racks occupy valuable warehouse or workshop space. Due to their non-foldable nature, idle racks are often simply stacked haphazardly or placed against walls, wasting storage resources and potentially encroaching on storage areas for other materials, resulting in low warehouse space utilization.
[0003] The space occupied by fixed transport racks is a more prominent issue, restricting the management efficiency and operational safety of the production site. Therefore, this utility model proposes a novel solution. Utility Model Content
[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a foldable bar stock transportation and storage device. This device can solve the problem of a large number of idle transport racks occupying valuable warehouse or workshop space during off-peak production seasons, equipment maintenance, or changes in bar stock specifications. Due to their non-foldable nature, idle devices often have to be stacked haphazardly or placed against a wall, which not only wastes warehousing resources but may also encroach on the storage area of other materials, resulting in low warehouse space utilization.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a foldable bar material transportation, turnover, and storage device, comprising a first bar material turnover rack, a second bar material turnover rack, and a third bar material turnover rack;
[0006] The folding mechanism is set on the second bar turnover frame. The folding assembly includes multiple first support frames, all of which are fixedly connected to the lower end of the first bar turnover frame. Multiple second support frames are fixedly connected to the lower end of the second bar turnover frame, and a third support frame is fixedly connected to the lower end of the third bar turnover frame.
[0007] On the left side, the surfaces of multiple first support frames are all hinged with first hydraulic rods, and the output ends of the multiple first hydraulic rods are hinged to the corresponding second support frames. On the right side, the surfaces of multiple third support frames are all hinged with second hydraulic rods, and the output ends of the multiple second hydraulic rods are hinged to the corresponding second support frames.
[0008] The first and third bar turnover frames each have two rotating shafts rotatably connected inside, and the two middle rotating shafts are rotatably connected to the second bar turnover frame.
[0009] The first bar turnover frame and the second bar turnover frame are hinged together by corresponding pivots, and the second bar turnover frame and the third bar turnover frame are hinged together by corresponding pivots.
[0010] Preferably, each of the four rotating shafts has multiple sprockets fixedly connected to its surface, and each of the multiple corresponding sprocket surfaces has a chain sleeved on it.
[0011] Multiple chains are respectively installed inside the corresponding first bar turnover frame, second bar turnover frame and third bar turnover frame.
[0012] Preferably, a hydraulic motor is fixedly connected to the front side of the first bar turnover rack, and the output end of the hydraulic motor is fixed to the corresponding rotating shaft.
[0013] Preferably, each of the multiple chains is composed of chain plates, pins, sleeves and rollers, and both sides of the multiple chains are fixed with rod support blocks by pins;
[0014] There are multiple rod support blocks arranged in a circular array on the corresponding chains.
[0015] Preferably, a plurality of inclined bar guide frames are fixedly connected to the right side of the first bar turnover frame.
[0016] Preferably, each of the multiple bar guide frames has multiple rollers rotatably connected inside.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. This foldable bar transport and storage device, through the telescopic drive of the first and second hydraulic rods and the hinged structure of the rotating shaft, allows the first and third bar turnover racks to be flipped and folded relative to the second bar turnover rack, significantly reducing the volume of the device when idle. After folding, the device can be compactly stacked in a corner of the warehouse or an empty area of the workshop, solving the problem of large space occupation and waste of storage resources caused by the non-foldable nature of traditional fixed transport racks. It is especially suitable for space optimization needs during off-peak production seasons or equipment replacement. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0020] Figure 1 This is a schematic diagram of the foldable bar material transportation, turnover, and storage device of this utility model.
[0021] Figure 2 This is a schematic diagram of the first hydraulic rod of this utility model;
[0022] Figure 3 This is a schematic diagram of the second hydraulic rod of this utility model;
[0023] Figure 4 This is a schematic diagram of the bar guide frame of this utility model;
[0024] Figure 5 This is a schematic diagram of the second bar turnover frame of this utility model;
[0025] Figure 6 This is a schematic diagram of the third bar turnover frame of this utility model.
[0026] Reference numerals in the attached drawings: 1. First bar turnover frame; 2. Second bar turnover frame; 3. Third bar turnover frame; 4. First support frame; 5. Second support frame; 6. Third support frame; 7. First hydraulic rod; 8. Second hydraulic rod; 9. Hydraulic motor; 10. Shaft; 11. Sprocket; 12. Chain; 13. Bar support block; 14. Bar guide frame; 15. Roller. Detailed Implementation
[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0029] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.
[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0031] Please see Figure 1-6 This utility model provides a technical solution: a foldable bar transport and storage device, including a first bar turnover frame 1, a second bar turnover frame 2, and a third bar turnover frame 3, and a folding mechanism disposed on the second bar turnover frame 2. The folding assembly includes multiple first support frames 4, all of which are fixedly connected to the lower end of the first bar turnover frame 1. Multiple second support frames 5 are fixedly connected to the lower end of the second bar turnover frame 2, and a third support frame 6 is fixedly connected to the lower end of the third bar turnover frame 3. First hydraulic rods 7 are hinged to the surfaces of the multiple first support frames 4 on the left side. The output ends of multiple first hydraulic rods 7 are hinged to the corresponding second support frame 5. The surfaces of multiple third support frames 6 on the right side are all hinged with second hydraulic rods 8. The output ends of multiple second hydraulic rods 8 are hinged to the corresponding second support frame 5. The first bar turnover frame 1 and the third bar turnover frame 3 are both rotatably connected to two rotating shafts 10. The two middle rotating shafts 10 are rotatably connected to the second bar turnover frame 2. The first bar turnover frame 1 and the second bar turnover frame 2 are hinged to each other through the corresponding rotating shafts 10. The second bar turnover frame 2 and the third bar turnover frame 3 are hinged to each other through the corresponding rotating shafts 10.
[0032] Each of the four rotating shafts 10 has multiple sprockets 11 fixedly connected to its surface. Each of the multiple corresponding sprockets 11 has a chain 12 driven onto its surface. The multiple chains 12 are respectively installed inside the corresponding first bar turnover frame 1, second bar turnover frame 2 and third bar turnover frame 3.
[0033] A hydraulic motor 9 is fixedly connected to the front side of the first bar turnover frame 1, and the output end of the hydraulic motor 9 is fixed to the corresponding rotating shaft 10.
[0034] Multiple chains 12 are composed of chain plates, pins, sleeves and rollers. Both sides of multiple chains 12 are fixed with bar support blocks 13 by pins. Multiple bar support blocks 13 are arranged in a ring array on the corresponding chains 12.
[0035] Multiple inclined bar guide frames 14 are fixedly connected to the right side of the first bar turnover frame 1.
[0036] Multiple rod guide frames 14 are rotatably connected to multiple rollers 15 inside.
[0037] When using the device, the first hydraulic rod 7 and the second hydraulic rod 8 are activated to shorten their output ends; the first hydraulic rod 7 pushes the first bar turnover frame 1 to unfold to the right with its left pivot 10 as the fulcrum, and the second hydraulic rod 8 pushes the third bar turnover frame 3 to unfold to the left with its right pivot 10 as the fulcrum, until the first bar turnover frame 1, the second bar turnover frame 2, and the third bar turnover frame 3 are on the same horizontal plane; at this time, the first support frame 4, the second support frame 5, and the third support frame 6 together form a stable support structure to ensure the stability of the device under load.
[0038] The sheet metal is placed on the left side of the third bar turnover rack 3. The hydraulic motor 9 is started to drive the rotating shaft 10 connected to it to rotate. Through the transmission cooperation between the sprocket 11 on the surface of the rotating shaft 10 and the chain 12, the four rotating shafts 10 are driven to rotate synchronously (the chain 12 ensures that the rotating shafts 10 of adjacent turnover racks rotate at the same speed). When the chain 12 is running, the bar support blocks 13 distributed in a ring array on both sides move synchronously with the chain. Through the continuous lifting action of the support blocks, the bar is smoothly transported from the third bar turnover rack 3 through the second bar turnover rack 2 to the first bar turnover rack 1, completing the transport and turnover of the bar.
[0039] Then the bar is guided from the bar guide frame 14 on the right side of the first bar turnover frame 1. The frictional resistance is reduced by the roller 15 connected inside the bar guide frame 14, so that the bar can slide smoothly into the first bar turnover frame 1 in the inclined direction, which facilitates the maintenance, transportation and turnover of the bar.
[0040] When the device is idle or the bar specifications need to be changed, clear all the bars on the turnover rack to ensure that chain 12 is in an unloaded state.
[0041] The output ends of the first hydraulic rod 7 and the second hydraulic rod 8 are extended; the first hydraulic rod 7 pulls the first bar turnover frame 1 to flip upward with its left pivot 10 as the fulcrum, and the second hydraulic rod 8 pulls the third bar turnover frame 3 to flip upward with its right pivot 10 as the fulcrum, until the first bar turnover frame 1 and the third bar turnover frame 3 are folded and stacked with the second bar turnover frame 2.
[0042] Once folded into place, the hydraulic rod remains extended, and the folded shape is maintained by the hydraulic locking function. At this time, the overall volume of the device is greatly reduced, and it can be compactly stacked in a corner of the warehouse or an empty area of the workshop, saving storage space.
[0043] The hydraulic motor 9, through the transmission system of the rotating shaft 10, sprocket 11 and chain 12, realizes the synchronous conveying of the three turnover frames, ensuring that the bar material is not jammed or deviated during the transfer process.
[0044] The first hydraulic rod 7 and the second hydraulic rod 8 serve as the folding power source. Together with the hinge structure of the rotating shaft 10, they precisely control the unfolding angle and folding range of the turnover frame to adapt to different usage scenarios.
[0045] The chain plate, pin, sleeve and roller structure of chain 12 ensure transmission stability, while the ring distribution design of bar support block 13 improves the adaptability to bars of different diameters and prevents bars from slipping during the conveying process.
[0046] The combination of bar guide frame 14 and roller 15 reduces the manual pushing force during the feeding process and improves turnover efficiency.
[0047] Furthermore, through the telescopic drive of the first hydraulic rod 7 and the second hydraulic rod 8, and in conjunction with the hinge structure of the rotating shaft 10, the first bar turnover rack 1 and the third bar turnover rack 3 can be flipped and folded relative to the second bar turnover rack 2, greatly reducing the volume of the device when idle. After folding, the device can be compactly stacked in the corner of the warehouse or the idle area of the workshop, solving the problem of large space occupation and waste of storage resources caused by the non-folding nature of traditional fixed transport racks. It is especially suitable for space optimization needs during non-peak production seasons or when equipment is replaced.
[0048] Structural Description: First bar turnover frame 1: The turnover unit on the left side of the device is used to receive the bars conveyed by the second bar turnover frame 2, providing a temporary storage and conveying channel for the bars. Its right side is connected to the bar guide frame 14 to realize the output of the bars.
[0049] Second bar turnover frame 2: The central core frame of the device serves as the connecting hub between the first and third bar turnover frames, the installation carrier of the folding mechanism, and also undertakes the function of bar transfer and conveying.
[0050] The third bar turnover rack 3: the turnover unit on the right side of the device, is used to receive the bars to be transported and to transport the bars to the second bar turnover rack 2 through the internal transmission assembly, providing support for the initial placement of the bars;
[0051] First support frame 4: fixed to the lower end of the first bar turnover frame 1, providing bottom support for it, and also serving as the hinge fulcrum of the first hydraulic rod 7, to cooperate in realizing the flipping action of the first bar turnover frame 1;
[0052] Second support frame 5: Fixed to the lower end of the second bar turnover frame 2, it is the main support structure of the device, and is also hinged to the output ends of the first hydraulic rod 7 and the second hydraulic rod 8, providing a force fulcrum for the folding action;
[0053] The third support frame 6 is fixed to the lower end of the third bar turnover frame 3, providing bottom support for it, and also serving as the hinge fulcrum of the second hydraulic rod 8, in order to achieve the flipping action of the third bar turnover frame 3.
[0054] First hydraulic rod 7: connects the first support frame 4 and the second support frame 5, and drives the first bar turnover frame 1 to unfold or fold around the pivot 10 through telescopic movement, thereby controlling its relative position with the second bar turnover frame 2.
[0055] Second hydraulic rod 8: connects the third support frame 6 and the second support frame 5, and drives the third bar turnover frame 3 to unfold or fold around the pivot 10 through telescopic movement, controlling its relative position with the second bar turnover frame 2.
[0056] Hydraulic motor 9: Power source, fixed to the front side of the first bar turnover frame 1, the output end drives the corresponding rotating shaft 10 to rotate, providing power for the bar conveying of the entire device;
[0057] Rotating shaft 10: Rotatably connected to the inside of the three turnover frames respectively, it is both the hinge shaft of the first and third bar turnover frames and the second bar turnover frame (to realize the folding function) and the mounting carrier of the sprocket 11, transmitting rotational power;
[0058] Sprockets 11: Fixed to the surface of the rotating shaft 10, and cooperate with the chain 12 to form a transmission pair, transmitting the rotational power of the rotating shaft 10 to the chain 12, so as to realize the synchronous operation of the chains in each rotating frame;
[0059] Chain 12: Composed of chain plate, pin, sleeve and roller, it is sleeved on the surface of the corresponding sprocket 11 and rotates in a cycle under the drive of the sprocket, driving the bar support block 13 to realize the conveying of the bar;
[0060] Bar support block 13: It is fixed to both sides of the chain 12 by pins and is distributed in a ring array. When the chain runs, it continuously lifts the bar to prevent the bar from slipping and achieves stable conveying.
[0061] Bar guide frame 14: It is inclined and fixed to the right side of the first bar turnover frame 1 to provide a guide channel for bar output and guide the bar to slide out in a preset direction;
[0062] Roller 15: Rotatably connected inside the bar guide frame 14, it reduces the resistance when the bar is output by replacing sliding friction with rolling friction, so that the bar can slide out smoothly.
[0063] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A foldable bar material transportation, turnover, and storage device, characterized in that: It includes a first bar turnover rack (1), a second bar turnover rack (2), and a third bar turnover rack (3); The folding mechanism is set on the second bar turnover frame (2). The folding assembly includes multiple first support frames (4). The multiple first support frames (4) are all fixedly connected to the lower end of the first bar turnover frame (1). The lower end of the second bar turnover frame (2) is fixedly connected to multiple second support frames (5). The lower end of the third bar turnover frame (3) is fixedly connected to a third support frame (6). On the left side, the surfaces of multiple first support frames (4) are all hinged with first hydraulic rods (7), and the output ends of multiple first hydraulic rods (7) are hinged to the corresponding second support frame (5). On the right side, the surfaces of multiple third support frames (6) are all hinged with second hydraulic rods (8), and the output ends of multiple second hydraulic rods (8) are hinged to the corresponding second support frame (5). The first bar turnover frame (1) and the third bar turnover frame (3) are both rotatably connected to two rotating shafts (10), and the two rotating shafts (10) in the middle are rotatably connected to the second bar turnover frame (2). The first bar turnover frame (1) and the second bar turnover frame (2) are hinged together by corresponding pivots (10), and the second bar turnover frame (2) and the third bar turnover frame (3) are hinged together by corresponding pivots (10).
2. The foldable bar material transportation, turnover, and storage device according to claim 1, characterized in that: Each of the four rotating shafts (10) has multiple sprockets (11) fixedly connected to its surface, and each of the multiple corresponding sprockets (11) has a chain (12) sleeved on its surface. Multiple chains (12) are respectively installed inside the corresponding first bar turnover frame (1), second bar turnover frame (2) and third bar turnover frame (3).
3. The foldable bar material transportation, turnover, and storage device according to claim 1, characterized in that: A hydraulic motor (9) is fixedly connected to the front side of the first bar turnover rack (1), and the output end of the hydraulic motor (9) is fixed to the corresponding rotating shaft (10).
4. The foldable bar material transportation, turnover, and storage device according to claim 2, characterized in that: Each of the multiple chains (12) consists of chain plates, pins, sleeves and rollers, and each of the multiple chains (12) has a bar support block (13) fixed on both sides by a pin; The number of bar support blocks (13) is multiple, and they are arranged in a ring array on the corresponding chain (12).
5. The foldable bar transport and storage device according to claim 1, characterized in that: Multiple inclined bar guide frames (14) are fixedly connected to the right side of the first bar turnover frame (1).
6. The foldable bar transport and storage device according to claim 5, characterized in that: Each of the multiple bar guide frames (14) has multiple rollers (15) rotatably connected inside.