A cage lifting device

Abstract

The present application relates to a cage lifting device, comprising a steel frame; a lifting platform movably mounted on the steel frame; a driving assembly mounted on the steel frame and driving the lifting platform; at least two connecting members mounted on the driving assembly; and at least two tensioning assemblies connected to the connecting members and having two ends connected to four corners of the lifting platform. The two connecting members are simultaneously driven by the driving assembly to ensure that the two connecting members can move simultaneously and have the same movement distance and time, so that the two ends of the two tensioning assemblies can move the same distance simultaneously, ensuring that the four corners of the lifting platform can be raised or lowered by the same distance simultaneously, thereby ensuring the stability of the lifting platform during cage transportation and avoiding instability of the lifting platform during lifting, which can cause the cage to lose balance and collide with the steel frame.

Description

Technical Field

[0001] This invention relates to the technical field of lifting devices, and more particularly to a cage car lifting device. Background Technology

[0002] A cage truck is a unitized mobile containerized equipment equipped with four casters for transporting and storing materials. It is a unique type of logistics packaging, offering advantages such as standardization, convenience, and speed. It is mainly used for the inbound and outbound distribution of standard packaged goods (such as tobacco), and can be used in conjunction with forklifts in first- and second-level warehouse mobile storage locations. It can accommodate older 3T, newer 3T, 4T, and 8T box trucks. Transporting goods is stable and safe.

[0003] Currently, most logistics goods in the industry are transferred using cage trucks. Cross-floor transport of cage trucks is mostly done by freight elevators, which results in low work efficiency, high personnel input, and high logistics transfer costs.

[0004] Moreover, cage cars are quite heavy when fully loaded with goods, and the resistance to pushing them is also relatively high. To assist in pushing them, some factories design conveyors that are compatible with cage cars. However, these conveyors have stability issues when transporting cage cars, and the conveyors are often located at a high position, making it inconvenient for cage cars to go up and down. Furthermore, manual pushing to the freight elevator is still required when lifting them, making it difficult to achieve automation.

[0005] While we might consider using pallets to transport cage trucks, the stability of palletized cage trucks is still not guaranteed, and additional personnel are needed for pallet placement and retrieval, which undoubtedly increases the workload. Summary of the Invention

[0006] This application provides a cage car lifting device to solve the problems existing in related technologies. The technical solution is as follows:

[0007] This application provides a cage car lifting device, including:

[0008] steel frame;

[0009] A lifting platform, which is movably mounted on the steel frame;

[0010] A drive assembly, mounted on the steel frame, drives the lifting platform.

[0011] At least two connectors are mounted on the drive assembly;

[0012] At least two tensioning components, both of which are connected to the connector, and both ends of the at least two tensioning components are respectively connected to the four corners of the lifting platform.

[0013] The steel frame includes:

[0014] support;

[0015] Two crossbeams are mounted parallel to each other on the bracket;

[0016] Four mounting pieces are respectively mounted on both ends of the two crossbeams, and the drive assembly is mounted on one of the mounting pieces, which has a groove with a lateral opening.

[0017] Two longitudinal beams are installed within the mounting bracket and are located within the groove.

[0018] In one implementation,

[0019] The driving component includes:

[0020] A drive shaft is rotatably mounted on two of the mounting members, and both ends of the drive shaft pass through the corresponding mounting members.

[0021] A drive motor, which is mounted on one of the mounting components;

[0022] A drive sprocket, which is mounted on the output shaft of the drive motor;

[0023] A driven sprocket is mounted on the drive shaft. A drive chain is connected between the driving sprocket and the driven sprocket. When the drive motor drives the driving sprocket to rotate, the driven sprocket drives the drive shaft to rotate.

[0024] In one implementation,

[0025] Each of the two mounting components connected to the drive shaft is equipped with a bearing housing, which is sleeved on the drive shaft.

[0026] In one implementation,

[0027] The driving component also includes:

[0028] Two first sprockets are respectively mounted at both ends of the drive shaft;

[0029] Two second sprockets are respectively rotatably mounted on the two longitudinal beams;

[0030] Two first chains are respectively sleeved on the first sprocket and the second sprocket on the corresponding side. The two ends of the two first chains are respectively connected to the connector. When the first sprocket rotates, the first chain causes the connector to move under the action of the second sprocket.

[0031] In one implementation,

[0032] The tensioning component includes:

[0033] The second chain has one end connected to the connector and the other end connected to the lifting platform.

[0034] The first tensioning pulley is rotatably mounted on the longitudinal beam, and the second chain is in contact with the surface of the first tensioning pulley;

[0035] The third chain, one end of which is connected to the connector and the other end of which is connected to the lifting platform;

[0036] The second tensioning pulley is rotatably mounted on the longitudinal beam, the third chain is in contact with the surface of the second tensioning pulley, and the height of the first tensioning pulley is higher than that of the second tensioning pulley;

[0037] The third tensioning wheel is rotatably mounted on the longitudinal beam. The third chain is in contact with the surface of the third tensioning wheel. The height of the second tensioning wheel is higher than that of the third tensioning wheel. When the first sprocket drives the first chain to move, the connecting member moves, so that one end of the second chain and the third chain moves, thereby changing the height of the lifting platform.

[0038] In one implementation,

[0039] The height at which the lifting platform is raised or lowered is equal to the length of movement of the connecting member.

[0040] In one implementation,

[0041] Loose chain detection components are installed on the first chain, the second chain, and the third chain.

[0042] In one implementation,

[0043] The lifting platform is connected to several safety hooks.

[0044] In one implementation,

[0045] The lifting platform is equipped with a smooth flat plate.

[0046] The cage car lifting device provided by the present invention has the following beneficial effects:

[0047] By using a single drive component to simultaneously drive two connecting parts, it is ensured that the two connecting parts can move at the same time, and that the movement distance and movement time of the two connecting parts are the same. This ensures that both ends of the two tensioning components can move the same distance at the same time, so that the four corners of the lifting platform can rise or fall the same distance at the same time. This ensures the stability of the lifting platform during the transportation of the cage car and avoids instability at one corner of the lifting platform during the lifting process, which could cause the cage car to lose balance and collide with the steel frame. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 This is a schematic diagram of the lifting device described in an embodiment of the present invention;

[0050] Figure 2 for Figure 1 A side view of the lifting device.

[0051] Figure 3 for Figure 1 A schematic diagram of the structure of the drive component;

[0052] Figure 4 for Figure 1 A top view of the central steel frame structure;

[0053] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure at point AA.

[0054] In the diagram: 100, lifting device; 101, safety hook;

[0055] 110. Steel frame; 111. Support frame; 112. Crossbeam; 113. Mounting component; 114. Longitudinal beam;

[0056] 120. Lifting platform;

[0057] 130. Drive assembly; 131. Drive shaft; 132. Drive motor; 133. Drive sprocket; 134. Driven sprocket; 135. First sprocket; 136. Second sprocket; 137. First chain;

[0058] 140. Connectors;

[0059] 150. Tensioning assembly; 151. Second chain; 152. First tensioning pulley; 153. Third chain; 154. Second tensioning pulley; 155. Third tensioning pulley. Detailed Implementation

[0060] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0061] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0063] Figures 1-5 This diagram illustrates the structure of a cage car lifting device 100 according to an embodiment of this application. Figures 1-5 As shown, the lifting device 100 may include:

[0064] This application provides a cage car lifting device 100, including:

[0065] Steel frame 110;

[0066] A lifting platform 120 is movably mounted on the steel frame 110;

[0067] A drive assembly 130 is mounted on the steel frame 110 and drives the lifting platform 120.

[0068] At least two connectors 140 are mounted on the drive assembly 130;

[0069] At least two tensioning components 150 are provided, and both of the tensioning components 150 are connected to the connector 140. The two ends of the tensioning components 150 are respectively connected to the four corners of the lifting platform 120.

[0070] In this embodiment, the tensioning assembly 150 is connected to the four corners of the lifting platform 120, and the two connecting parts 140 are located on both sides of the steel frame 110. The two connecting parts 140 are driven to move simultaneously by the driving assembly 130, so that the two tensioning assemblies 150 move simultaneously to adjust the height of the lifting platform 120. The tensioning assembly 150 is designed to ensure that the four corners of the lifting platform 120 can be adjusted in height simultaneously, thereby ensuring the stability of the lifting platform 120 during the lifting process.

[0071] Two connecting parts 140 are driven simultaneously by a drive component 130 to ensure that the two connecting parts 140 can move at the same time and that the movement distance and movement time of the two connecting parts 140 are the same. This ensures that both ends of the two tensioning components 150 can move the same distance at the same time, so that the four corners of the lifting platform 120 can rise or fall the same distance at the same time. This ensures the stability of the lifting platform 120 during the transportation of the cage car and avoids instability of a certain corner of the lifting platform 120 during the lifting process, which could cause the cage car to lose balance and collide with the steel frame 110.

[0072] It should be noted that the top view of the steel frame 110 is rectangular in shape, and the two tensioning components 150 are arranged in parallel on the steel frame 110 and driven by the same drive component 130 so that the lifting platform 120 can be raised and lowered smoothly.

[0073] Connector 140 is a chain joint assembly, which consists of a pin and a chain plate.

[0074] like Figures 1-5 As shown, in one embodiment,

[0075] The steel frame 110 includes:

[0076] Bracket 111;

[0077] Two crossbeams 112 are mounted in parallel on the bracket 111;

[0078] Four mounting pieces 113 are respectively mounted on both ends of the two crossbeams 112, and the drive assembly 130 is mounted on one of the mounting pieces 113, the mounting piece 113 having a groove with a lateral opening;

[0079] Two longitudinal beams 114 are installed in the mounting member 113 and are located in the groove;

[0080] In this embodiment, two crossbeams 112 and two longitudinal beams 114 are spliced ​​on the bracket 111 to make the steel frame 110 form an elongated shape. The two crossbeams 112 and two longitudinal beams 114 form a rectangular structure spliced ​​together. Four mounting parts 113 are respectively located at the connection between the two crossbeams 112 and the two longitudinal beams 114.

[0081] Furthermore, such as Figure 3 As shown, the mounting component 113 has a groove with a single-sided opening, making the cross-section of the mounting component 113 C-shaped. The longitudinal beam 114 is located in the groove, and the side opening of the groove is closed by the setting of the longitudinal beam 114.

[0082] like Figures 1-3 As shown, in one embodiment,

[0083] The drive component 130 includes:

[0084] A drive shaft 131 is rotatably mounted on two of the mounting members 113, and both ends of the drive shaft 131 pass through the corresponding mounting members 113.

[0085] A drive motor 132 is mounted on one of the mounting members 113;

[0086] A drive sprocket 133 is mounted on the output shaft of the drive motor 132;

[0087] Driven sprocket 134 is mounted on drive shaft 131. Drive chain is sleeved between drive sprocket 133 and driven sprocket 134. When drive motor 132 drives drive sprocket 133 to rotate, driven sprocket 134 drives drive shaft 131 to rotate.

[0088] In this embodiment, the drive shaft 131 is mounted on two of the mounting members 113, and the drive shaft 131 is arranged parallel to one of the crossbeams 112. The two ends of the drive shaft 131 extend through the mounting members 113 and into the groove, so that the two ends of the drive shaft 131 are located between the two mounting members 113. At the same time, a driven sprocket 134 is fixedly sleeved on the drive shaft 131. When the drive motor 132 drives the drive sprocket 133 to rotate, the driven sprocket 134 is rotated through the drive chain, thereby driving the drive shaft 131 to rotate.

[0089] The connector 140 is connected to both ends of the first chain 137 to form a closed loop, and the tensioning assembly 150 is installed on the connector 140.

[0090] like Figure 3 As shown, in one embodiment,

[0091] Bearing seats are installed on both mounting parts 113 connected to the drive shaft 131, and the bearing seats are sleeved on the drive shaft 131.

[0092] In this embodiment, the rotation of the drive shaft 131 is lubricated by the bearing housing, which avoids direct connection between the mounting part 113 and the drive shaft 131, thus preventing the rotation of the drive shaft 131 from being affected.

[0093] like Figures 1-5 As shown, in one embodiment,

[0094] The drive component 130 further includes:

[0095] Two first sprockets 135 are respectively mounted at both ends of the drive shaft 131;

[0096] Two second sprockets 136 are respectively rotatably mounted on the two longitudinal beams 114;

[0097] Two first chains 137 are respectively sleeved on the first sprocket 135 and the second sprocket 136 on the corresponding side. The two ends of the two first chains 137 are respectively connected to the connector 140. When the first sprocket 135 rotates, the first chains 137 cause the connector 140 to move under the action of the second sprocket 136.

[0098] In this embodiment, two first sprockets 135 are respectively sleeved at both ends of the drive shaft 131, and two second sprockets 136 are respectively mounted on two longitudinal beams 114 by rotation, so that the two first sprockets 135 at both ends of the drive shaft 131 correspond to the two second sprockets 136. A first chain 137 is sleeved between the first sprockets 135 and the second sprockets 136 on the corresponding side. When the drive shaft 131 rotates to drive the first sprockets 135 to rotate, the first chain 137 moves between the first sprockets 135 and the second sprockets 136.

[0099] Furthermore, the connector 140 is installed on the first chain 137 so that both ends of the first chain 137 are connected to the two sides of the connector 140 respectively. When the drive shaft 131 rotates to drive the first sprocket 135 to rotate, the first chain 137 moves between the first sprocket 135 and the second sprocket 136, and the connector 140 moves under the action of the first chain 137.

[0100] Furthermore, the length of the first chain 137 is equivalent to the movement length of the connector 140. If the movement length of the connector 140 needs to be increased, only the length of the first chain 137 needs to be increased. At the same time, as the chain length increases, the distance between the first sprocket 135 and the second sprocket 136 needs to be increased accordingly to ensure that the first chain 137 remains taut between the first sprocket 135 and the second sprocket 136, so that the second sprocket 136 can rotate when the first sprocket 135 rotates, thereby driving the first chain 137.

[0101] like Figures 2-5 As shown, in one embodiment,

[0102] The tensioning assembly 150 includes:

[0103] The second chain 151 has one end connected to the connector 140 and the other end connected to the lifting platform 120.

[0104] The first tensioning wheel 152 is rotatably mounted on the longitudinal beam 114, and the second chain 151 is in contact with the surface of the first tensioning wheel 152.

[0105] The third chain 153 has one end connected to the connector 140 and the other end connected to the lifting platform 120.

[0106] The second tensioning wheel 154 is rotatably mounted on the longitudinal beam 114, the third chain 153 is in contact with the surface of the second tensioning wheel 154, and the height of the first tensioning wheel 152 is higher than that of the second tensioning wheel 154.

[0107] The third tensioning wheel 155 is rotatably mounted on the longitudinal beam 114. The third chain 153 is in contact with the surface of the third tensioning wheel 155. The second tensioning wheel 154 is higher than the third tensioning wheel 155. When the first sprocket 135 drives the first chain 137 to move, the connecting member 140 moves, so that one end of the second chain 151 and the third chain 153 moves, thereby changing the height of the lifting platform 120.

[0108] In this embodiment, there are two second chains 151 and two third chains 153. Each second chain 151 and each third chain 153 are connected to a connector 140 on the corresponding side. The second chains 151 are connected to the two farthest corners of the lifting platform 120, and the third chains 153 are connected to the two nearest corners of the lifting platform 120. When the connector 140 moves clockwise with the first chain 137, it generates a certain tension on the second chains 151 and the third chains 153, thereby raising the height of the lifting platform 120. When the connector 140 moves counterclockwise with the first chain 137, it relaxes, and the height of the lifting platform 120 decreases under the action of gravity.

[0109] Furthermore, by setting the second chain 151 and the first tensioning wheel 152, the side view of the second chain 151 during use is an inverted "L" shape. By setting the first tensioning wheel 152, it is ensured that when the connecting member 140 moves, the second chain 151 is always kept taut under the action of the gravity of the lifting platform 120, so as to ensure that the four corners of the lifting platform 120 are on the same plane.

[0110] By setting the second tensioning wheel 154 and the third tensioning wheel 155, the side view of the third chain 153 during use is in a "T" shape. The second tensioning wheel 154 and the third tensioning wheel 155 ensure that when the connecting piece 140 moves, the third chain 153 is always taut under the gravity of the lifting platform 120, so as to ensure that the four corners of the lifting platform 120 are on the same plane.

[0111] Furthermore, the second chain 151 is higher than the third chain 153. The third chain 153 partially encloses the portion of the first chain 137 near the second sprocket 136. The second sprocket 136 is located on the side of the second tension wheel 154 facing the drive motor 132, and the diameter of the second tension wheel 154 is larger than the diameter of the second sprocket 136 to ensure that the first chain 137 and the second chain 151 do not become entangled during movement. The third tension wheel 155 is located below the first chain 137. The third tension wheel 155 converts the joint of the third chain 153 to ensure that the dead corner of the lifting platform 120 can be lifted simultaneously.

[0112] It should be noted that when the distance between the second sprocket 136 and the first sprocket 135 increases, the lengths of the third chain 153 and the second chain 151 also increase, and the position of the second tensioner 154 moves as the position of the second sprocket 136 moves.

[0113] The first chain 137 is connected to the tensioning assembly 150 via a connector 140. The second chain 151 and the third chain 153 are connected to the four corners of the lifting platform 120. The two connectors 140 are located on both sides of the steel frame 110 and are connected to the first sprocket 135 via the first chain 137. The first sprocket 135 installed at both ends of the driven sprocket 134 is driven by the drive assembly 130, thereby generating displacement and causing the connector 140 to move back and forth. The arrangement of the second chain 151 and the third chain 153 in the tensioning assembly 150 ensures that the four corners of the lifting platform 120 can be adjusted in height simultaneously, thus ensuring the stability of the lifting platform 120 during the lifting process.

[0114] Both ends of the first chain 137 are connected to the connector 140, forming a closed loop. The ends of the second chain 151 and the third chain 153 furthest from the lifting platform 120 are also connected to the connector 140. Driven by the drive assembly 130, the first sprocket 135 rotates, causing the first chain 137 to circulate, which in turn drives the connector 140 to move. This ensures that the second chain 151 and the third chain 153 at both ends of the connector 140 can move the same distance simultaneously.

[0115] like Figures 1-5 As shown, in one embodiment,

[0116] The height at which the lifting platform 120 is raised or lowered is equal to the length of movement of the connecting member 140.

[0117] In this embodiment, the height of the lifting platform 120 is equal to the movement length of the connector 140. If it is necessary to increase the movement length of the connector 140, it is only necessary to increase the length of the first chain 137. At the same time, as the chain length increases, the distance between the first sprocket 135 and the second sprocket 136 needs to be increased accordingly to ensure that the first chain 137 remains taut between the first sprocket 135 and the second sprocket 136, so as to ensure that the second sprocket 136 can rotate when the first sprocket 135 rotates, thereby driving the first chain 137.

[0118] like Figures 1-5 As shown, in one embodiment,

[0119] Loose chain detection components are installed on the first chain 137, the second chain 151 and the third chain 153.

[0120] In this embodiment, the loose chain detection component detects the tightness of the first chain 137, the second chain 151, and the third chain 153 to prevent the first chain 137, the second chain 151, and the third chain 153 from becoming loose, which would affect subsequent use;

[0121] It should be noted that the loose chain detection component is a common chain tension monitoring component on the market.

[0122] In one implementation,

[0123] Several safety hooks 101 are connected to the lifting platform 120.

[0124] In this embodiment, the safety hook 101 facilitates the addition of counterweights to the lifting platform 120 when the lifting platform 120 is relatively light. At the same time, the side of the lifting platform 120 is provided with a protective net, which plays a protective role during the lifting and lowering of the cage car.

[0125] like Figure 5 As shown, in one embodiment,

[0126] A smooth flat plate is provided on the lifting platform 120.

[0127] In this embodiment, the surface of the lifting platform 120 is provided with a smooth flat plate, which makes it easy to place the cage car on the lifting platform 120.

[0128] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A cage car lifting device, characterized in that, include: steel frame; A lifting platform, which is movably mounted on the steel frame; A drive assembly, mounted on the steel frame, drives the lifting platform. At least two connectors are mounted on the drive assembly; At least two tensioning components, both of which are connected to the connector, and both ends of the at least two tensioning components are respectively connected to the four corners of the lifting platform. The steel frame includes: support; Two crossbeams are mounted parallel to each other on the bracket; Four mounting pieces are respectively mounted on both ends of the two crossbeams, and the drive assembly is mounted on one of the mounting pieces, which has a groove with a lateral opening. Two longitudinal beams are installed within the mounting component and are located within the groove. The driving component includes: A drive shaft is rotatably mounted on two of the mounting members, and both ends of the drive shaft pass through the corresponding mounting members. A drive motor, which is mounted on one of the mounting components; A drive sprocket, which is mounted on the output shaft of the drive motor; A driven sprocket is mounted on the drive shaft, and a drive chain is sleeved between the driving sprocket and the driven sprocket. When the drive motor drives the driving sprocket to rotate, the driven sprocket drives the drive shaft to rotate. The driving component also includes: Two first sprockets are respectively mounted at both ends of the drive shaft; Two second sprockets are respectively rotatably mounted on the two longitudinal beams; Two first chains are respectively sleeved on the first sprocket and the second sprocket on the corresponding side. The two ends of the two first chains are respectively connected to the connector. When the first sprocket rotates, the first chain causes the connector to move under the action of the second sprocket. The tensioning component includes: The second chain has one end connected to the connector and the other end connected to the lifting platform. The first tensioning pulley is rotatably mounted on the longitudinal beam, and the second chain is in contact with the surface of the first tensioning pulley; The third chain, one end of which is connected to the connector and the other end of which is connected to the lifting platform; The second tensioning pulley is rotatably mounted on the longitudinal beam, the third chain is in contact with the surface of the second tensioning pulley, and the height of the first tensioning pulley is higher than that of the second tensioning pulley; The third tensioning wheel is rotatably mounted on the longitudinal beam. The third chain is in contact with the surface of the third tensioning wheel. The height of the second tensioning wheel is higher than that of the third tensioning wheel. When the first sprocket drives the first chain to move, the connecting member moves, so that one end of the second chain and the third chain moves, thereby changing the height of the lifting platform.

2. The cage car lifting device according to claim 1, characterized in that, Each of the two mounting components connected to the drive shaft is equipped with a bearing housing, which is sleeved on the drive shaft.

3. The cage car lifting device according to claim 1, characterized in that, The height at which the lifting platform is raised or lowered is equal to the length of movement of the connecting member.

4. The cage car lifting device according to claim 1, characterized in that, Loose chain detection components are installed on the first chain, the second chain, and the third chain.

5. A cage car lifting device according to claim 1, characterized in that, The lifting platform is connected to several safety hooks.

6. The cage car lifting device according to claim 1, characterized in that, The lifting platform is equipped with a smooth flat plate.

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