Mechanical lifting mechanism of storage and transportation guarantee box

Abstract

The utility model is specifically related to a kind of storage and transportation guarantee box mechanical lifting mechanism, including a group of mutually parallel left support frame and right support frame, the left support frame and right support frame and top are equipped with two cross beams, the outer side wall of left support frame is equipped with hand-operated drive device, and synchronous transmission mechanism is installed between the two cross beams, and hand-operated drive device is connected with synchronous transmission mechanism by transmission chain, and the synchronous transmission mechanism includes two mutually parallel rotating shafts, and the both ends of rotating shaft are wound with chain respectively, and the bottom of all chains is commonly connected with tray;Hand-operated drive device and synchronous transmission mechanism jointly act to control the both ends chain of tray to realize synchronous lifting.The utility model is compared with prior art by split design and structure optimization, and it is functional, in the case of no electricity, hydraulic drive, the manual mechanical lifting mechanism provided by the application can realize the tray lifting in storage and transportation guarantee box to store and take goods.

Description

Technical Field

[0001] This utility model relates to the field of mechanical lifting mechanisms, specifically to a mechanical lifting mechanism for a storage and transportation security box. Background Technology

[0002] With the development of packaging and storage technology, multi-functional storage and transportation containers offer high utilization, strong mobility, low labor intensity, and high efficiency, making them a major trend for storing goods. However, in the absence of electric or hydraulic drives, accessing items within existing containers still requires auxiliary equipment, resulting in high costs, low efficiency, and difficulty in meeting the demands for high mobility and strong safety and reliability to complete the task of storing and retrieving items. Summary of the Invention

[0003] This invention addresses the technical problem that existing storage and transportation security boxes require additional auxiliary equipment for storing and retrieving items, resulting in high costs and low efficiency. It provides a mechanical lifting mechanism for storage and transportation security boxes.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a mechanical lifting mechanism for a storage and transportation security box, comprising a set of parallel left and right support frames. Two crossbeams are installed on the left and right support frames and the top. A hand-cranked drive device is installed on the outer wall of the left support frame. A synchronous transmission mechanism is installed between the two crossbeams. The hand-cranked drive device and the synchronous transmission mechanism are connected by a transmission chain. The synchronous transmission mechanism includes two parallel rotating shafts, each with a chain wound around both ends. A tray is connected to the bottom of all the chains. Slide rails are installed on the inner walls of the left and right support frames, which are opposite to the left and right ends of the tray. Pulleys are installed on the left and right sides of the tray, slidingly disposed within the slide rails. The hand-cranked drive device and the synchronous transmission mechanism work together to control the chains at both ends of the tray to achieve synchronous lifting.

[0005] Furthermore, the hand-cranked drive device includes a hand-cranked double-sided ratchet, which is coaxially connected to a worm gear via a rotating shaft. The worm gear meshes with a worm gear, and a first rotating shaft passes through the center of the worm gear. A first spur gear is also fitted at one end of the first rotating shaft, which meshes with a second spur gear. A second rotating shaft passes through the center of the second spur gear, and a first bevel gear is also fitted at one end of the second rotating shaft. The first bevel gear meshes with the second bevel gear, and a third rotating shaft passes through the interior of the second bevel gear. Lower sprockets are fitted at both ends of the third rotating shaft.

[0006] Furthermore, the synchronous transmission mechanism includes a transmission shaft, with upper sprockets corresponding to the lower sprockets installed at both ends of the transmission shaft. A transmission chain meshes between the lower and upper sprockets on the same side. A top sprocket is fitted onto the middle of the transmission shaft and the adjacent shaft. A top chain meshes between the two top sprockets. A top first bevel gear is fitted onto both ends of the two shafts. The top first bevel gear meshes with a top second bevel gear. A transverse shaft connects the two second bevel gears on the same side.

[0007] Furthermore, the tray is a rectangular plate, and the chain is connected to the four top corners near the tray (3).

[0008] Compared with the prior art, the present invention has the following beneficial effects: 1. In the absence of electric or hydraulic drive, the manual mechanical lifting mechanism provided by this utility model can realize the lifting and lowering of the pallet inside the storage and transportation protection box to store and retrieve items.

[0009] 2. The use of a single movable pallet lifting method effectively solves the problem of pallets being difficult to lift when overloaded.

[0010] 3. The synchronous transmission mechanism is located on the top of the support frame inside the storage and transportation container, which greatly increases the storage capacity of the contents inside the container. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the mechanical lifting mechanism of this utility model.

[0012] Figure 2 This is a top view of the mechanical lifting mechanism of this utility model.

[0013] Figure 3 This is a schematic diagram of the hand-cranked drive device of this utility model.

[0014] Figure 4 This is a partial enlarged view of the synchronous transmission mechanism.

[0015] The markings in the image are as follows: 1. Left support frame; 2. Hand-cranked drive device; 2-1. Hand-cranked double-sided ratchet; 2-2. Worm gear; 2-3. Turbine; 2-4. First spur gear; 2-5. Second spur gear; 2-6. First bevel gear; 2-7. Second bevel gear; 2-8. Lower sprocket; 3. Tray; 3-1. Pulley; 4. Synchronous transmission mechanism; 4-1. Shaft; 4-2. Transmission shaft; 4-3. Upper sprocket; 4-4. Top sprocket; 4-5. Top chain; 4-6. Top first bevel gear; 4-7. Top second bevel gear; 4-8. Horizontal shaft; 4-9. Chain; 5. Crossbeam; 6. Slide rail; 7. Right support frame; 8. Transmission chain. Detailed Implementation

[0016] The present invention will be further described below with reference to specific embodiments. Example 1

[0017] like Figure 1-4 As shown, a mechanical lifting mechanism for a storage and transportation container includes a set of parallel left support frames 1-2 and right support frames 7-2. The left support frames 1-2 and right support frames 1-7 are fixed inside the container. Two crossbeams 5 are installed on the left support frames 1-2, right support frames 7, and top. A hand-cranked drive device 2 is installed on the outer wall of the left support frame 1, near the end door for easy operation. A synchronous transmission mechanism 4 is installed between the two crossbeams 5. The hand-cranked drive device 2 and the synchronous transmission mechanism 4 are connected by a transmission chain 8. The synchronous transmission mechanism 4 includes... Two parallel rotating shafts 4-1 are connected to each other. Chains 4-9 are wound around both ends of each shaft 4-1. The bottom of all chains 4-9 is connected to a tray 3. Slide rails 6 are installed on the inner walls of the left support frame 1 and the right support frame 7, which are opposite to the left and right ends of the tray 3. Pulleys 3-1 are installed on the left and right sides of the tray 3. The pulleys 3-1 are slidably embedded in the slide rails 6 and play a positioning role during the lifting and lowering of the tray. The hand-cranked drive device 2 and the synchronous transmission mechanism 4 work together to control the chains 4-9 at both ends of the tray 3 to achieve synchronous lifting and lowering.

[0018] Furthermore, the hand-cranked drive device 2 includes a hand-cranked bidirectional ratchet 2-1, which is coaxially connected to a worm gear 2-2 via a rotating shaft. The worm gear 2-2 meshes with a turbine 2-3. A first rotating shaft passes through the center of the turbine 2-3. A first spur gear 2-4 is also fitted at one end of the first rotating shaft. The first spur gear 2-4 meshes with a second spur gear 2-5. A second rotating shaft passes through the center of the second spur gear 2-5. A first bevel gear 2-6 is also fitted at one end of the second rotating shaft. The first bevel gear 2-6 meshes with a second bevel gear 2-7. A third rotating shaft passes through the interior of the second bevel gear 2-7. Lower sprockets 2-8 are fitted at both ends of the third rotating shaft.

[0019] Among them, the hand-cranked bidirectional ratchet 2-1, also known as the bidirectional self-locking hand winch, is characterized by its bidirectional self-locking function, which can self-lock at any time during the lifting and lowering of the pallet; the worm 2-2 and the turbine 2-3 also mainly serve a self-locking function. When the lead angle is constant, the turbine will rotate with the worm, so that the handwheel can better control the lifting and lowering of the pallet; the function of the first spur gear 2-4 and the second spur gear 2-5 in the spur gear set is that when the transmission ratio reaches a certain level, the hand-cranked device can drive the chain 4-9 to drive the lifting and lowering of the pallet; the first bevel gear 2-6 and the second bevel gear 2-7 in the bevel gear set mainly serve to change the direction and can rotate synchronously with the lower sprocket 2-8.

[0020] Furthermore, the synchronous transmission mechanism 4 includes a transmission shaft 4-2, with upper sprockets 4-3 corresponding to lower sprockets 2-8 installed at both ends of the transmission shaft 4-2. A transmission chain 8 is meshed between the lower sprockets 2-8 and the upper sprockets 4-3 on the same side. A top sprocket 4-4 is sleeved in the middle of both the transmission shaft 4-2 and the adjacent shaft 4-1. A top chain 4-5 is meshed between the two top sprockets 4-4. A top first bevel gear 4-6 is sleeved at both ends of the two shafts 4-1. The top first bevel gear 4-6 meshes with a top second bevel gear 4-7. A transverse shaft 4-8 connects the two top second bevel gears 4-7 on the same side.

[0021] Under the action of the transmission chain 8, the transmission shaft 4-2 rotates. Under the action of the top chain 4-5, the adjacent shaft 4-1 also rotates. Under the combined action of the top first bevel gear 4-6 and the top second bevel gear 4-7, the other shaft 4-1 also rotates. The rotation of the shaft 4-1 causes the chain 4-9 wrapped around the outside of the shaft 4-1 to drive the tray 3 to rise or fall.

[0022] Furthermore, the tray 3 is a rectangular plate, and the chains 4-9 are respectively connected to the four top corners near the tray 3.

[0023] The pallet 1-3 is a single movable pallet, and the entire lifting mechanism controls the lifting and lowering of this single movable pallet to store and retrieve items. The hand-cranked drive device 1-1 drives the synchronous transmission mechanism 1-4 via a chain to control the chains at both ends of the pallet 1-3 to achieve synchronous lifting and lowering.

[0024] Working process and principle: The hand-cranked double-acting ratchet 2-1 drives the worm gear 2-2 and the turbine 2-3 to rotate. The turbine 2-3 drives the first spur gear 2-4 and the second spur gear 2-5 of the spur gear set to rotate, which in turn drives the first bevel gear 2-6 and the second bevel gear 2-7 of the bevel gear set to rotate. This causes the lower sprocket 2-8 to rotate. Under the action of the transmission chain 8, the upper sprocket 4-3 also rotates, causing the transmission shaft 4-2 to rotate. Under the action of the top chain 4-5, the adjacent shaft 4-1 also rotates. Under the combined action of the top first bevel gear 4-6 and the top second bevel gear 4-7, the other shaft 4-1 also rotates. The rotation of the shaft 4-1 causes the chain 4-9 wrapped around the outside of the shaft 4-1 to move the tray 3 up or down.

[0025] This invention, through its split design and structural optimization, offers superior functionality compared to existing technologies. In the absence of electric or hydraulic power, the manual mechanical lifting mechanism provided by this invention enables the lifting and lowering of pallets within the storage and transportation container to access items.

[0026] The combined design of the hand-cranked drive device of this utility model has the characteristics of self-locking and labor saving; the use of a single movable pallet lifting can effectively reduce the load and make pallet lifting easier; the use of chain synchronous transmission arrangement can increase the storage capacity of the internal space of the storage and transportation guarantee box.

Claims

1. A mechanical lifting mechanism for a storage and transportation protection box, characterized in that, It includes a set of parallel left support frame (1) and right support frame (7). The left support frame (1), right support frame (7) and top are jointly equipped with two crossbeams (5). A hand-cranked drive device (2) is installed on the outer wall of the left support frame (1). A synchronous transmission mechanism (4) is installed between the two crossbeams (5). The hand-cranked drive device (2) and the synchronous transmission mechanism (4) are connected by a transmission chain (8). The synchronous transmission mechanism (4) includes two parallel rotating shafts (4-1). 1) Both ends of the tray (3) are wound with chains (4-9), and the bottom of all chains (4-9) are connected to the tray (3). The inner side walls of the left support frame (1) and the right support frame (7) opposite to the left and right ends of the tray (3) are respectively equipped with slide rails (6). The left and right sides of the tray (3) are respectively equipped with pulleys (3-1). The pulleys (3-1) are slidably set in the slide rails (6). The hand-cranked drive device (2) and the synchronous transmission mechanism (4) work together to control the chains (4-9) at both ends of the tray (3) to achieve synchronous lifting.

2. The mechanical lifting mechanism for a storage and transportation security box according to claim 1, characterized in that, The hand-cranked drive device (2) includes a hand-cranked double-direction ratchet (2-1). The hand-cranked double-direction ratchet (2-1) is coaxially connected to a worm gear (2-2) via a rotating shaft. The worm gear (2-2) meshes with a turbine gear (2-3). A first rotating shaft passes through the center of the turbine gear (2-3). A first spur gear (2-4) is also fitted at one end of the first rotating shaft. The first spur gear (2-4) meshes with a second spur gear (2-5). A second rotating shaft passes through the center of the second spur gear (2-5). A first bevel gear (2-6) is also fitted at one end of the second rotating shaft. The first bevel gear (2-6) meshes with a second bevel gear (2-7). A third rotating shaft passes through the interior of the second bevel gear (2-7). Lower sprockets (2-8) are fitted at both ends of the third rotating shaft.

3. The mechanical lifting mechanism for a storage and transportation protection box according to claim 2, characterized in that, The synchronous transmission mechanism (4) includes a transmission shaft (4-2). At both ends of the transmission shaft (4-2) are upper sprockets (4-3) corresponding to the lower sprockets (2-8). The lower sprockets (2-8) and the upper sprockets (4-3) on the same side are meshed with a transmission chain (8). The transmission shaft (4-2) and the middle of the adjacent shaft (4-1) are respectively fitted with top sprockets (4-4). The two top sprockets (4-4) are meshed with a top chain (4-5). At both ends of the two shafts (4-1) are respectively fitted with top first bevel gears (4-6). The top first bevel gears (4-6) are respectively meshed with top second bevel gears (4-7). The two top second bevel gears (4-7) on the same side are connected by a transverse shaft (4-8).

4. The mechanical lifting mechanism for a storage and transportation security box according to claim 1, characterized in that, The tray (3) is a rectangular plate, and the chains (4-9) are respectively connected to the four top corners near the tray (3).

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