A chain wheel chain high-altitude storage system

Abstract

The utility model provides a kind of chain wheel chain high-altitude storage system, including shell, worm gear mechanism, chain wheel, chain and storage mechanism, worm gear mechanism in shell is input power by worm wheel shaft, is driven to worm shaft by the meshing transmission of worm wheel and worm, again, chain wheel is rotated by connecting shaft drive;Chain groove on the outer surface of chain wheel drives chain winding release, after chain is worn chain barrel, connect storage mechanism, realize its high-altitude lifting;Storage mechanism adopts double-layer shell structure, outer layer protection, inner layer contains article.The system utilizes worm gear self-locking characteristics to prevent falling, improves stability by anti-extraction boss, shaft sleeve, additional worm position pointer realizes accurate control, solve the problem of traditional system security protection deficiency, unstable transmission, applicable to high-altitude working platform and other scenes, with safe and reliable, operation accurate, strong durability advantage.

Description

Technical Field

[0001] This utility model relates to the field of high-altitude storage technology, and more specifically, to a sprocket and chain high-altitude storage system. Background Technology

[0002] With the development of industrial warehousing and aerial work platforms, such as building exterior wall maintenance and power transmission tower repair, the demand for utilizing high-altitude space is increasing. Spare parts are stored at high altitudes to save ground space, and power transmission towers need to store maintenance consumables at high altitudes to reduce the number of climbings.

[0003] Chinese Utility Model Patent Application No. CN116252282A discloses a high-altitude work storage device. This device includes a crossbar angle iron, a storage device, and a connecting device. The storage device is connected to the crossbar angle iron and is used to store high-altitude work tools and accessories that workers need to temporarily use during high-altitude operations. The connecting device is located between the crossbar angle iron and the storage device, and is used to securely connect the crossbar angle iron and the storage device, thereby ensuring that the storage device is stably placed on the crossbar angle iron and improving the reliability of the storage device during use. This high-altitude work storage device provided in this application uses the crossbar angle iron as a support and is equipped with a high-altitude work storage device, allowing workers to store tools and accessories in the storage device when they need to retrieve or place them at heights, instead of placing them directly on the crossbar angle iron, reducing the risk of tools falling from a height.

[0004] However, existing high-altitude storage systems have some shortcomings that need to be improved. The lifting mechanism of existing high-altitude storage systems does not have a self-locking feature. If the driving power is interrupted, the items on the load end may fall due to gravity.

[0005] In existing systems using chain and sprocket drives, the chain grooves of the sprockets are mostly open or have only simple sidewalls. When the object is unbalanced due to a shift in the center of gravity, or shakes due to airflow disturbances or ground collisions during lifting or lowering, the chain is prone to coming off the sprocket groove, causing the chain to fall off. Existing high-altitude storage facilities are mostly single-layer metal baskets or simple frame structures: single-layer shells have no ventilation or drainage design, and condensation and rainwater in the high-altitude environment are prone to accumulate in the storage cavity, causing paper documents, electronic components, metal parts and other items to become damp, moldy and corroded; the top of the storage mechanism is mostly open, and items are easy to fall during loading and unloading, and it cannot protect the stored items, affecting their quality.

[0006] Existing storage mechanisms typically use solid flat bases, which cannot effectively drain water from the cavity. This leads to rainwater leakage and items becoming damp. In summary, existing high-altitude storage systems suffer from inherent deficiencies in their transmission principles and structural design, resulting in significant shortcomings in self-locking security, chain stability, storage protection, and ventilation and drainage. Therefore, we propose an improved sprocket and chain high-altitude storage system. Utility Model Content

[0007] The purpose of this utility model is to address the problems raised in the existing background technology. To achieve the above-mentioned purpose, this utility model provides the following technical solution: a sprocket and chain high-altitude storage system, including a housing, a worm gear mechanism disposed within the housing, the worm gear mechanism being connected to a sprocket, a chain being fitted onto the outer surface of the sprocket, and the chain being connected to a storage mechanism.

[0008] As a preferred technical solution of this utility model, the worm gear mechanism includes a worm wheel, a worm wheel shaft, a worm, and a worm shaft. The worm wheel shaft is provided at the center of the worm wheel. The worm wheel meshes with the worm gear, and the worm is connected to the worm shaft.

[0009] As a preferred technical solution of this utility model, a worm gear position pointer is provided above the worm gear shaft, a coupling hole is provided below the worm gear shaft, and a keyway is provided on the coupling hole.

[0010] As a preferred embodiment of this utility model, the worm shaft is connected to the connecting shaft, the connecting shaft is provided with a keyway, and the connecting shaft is fitted with a bushing.

[0011] As a preferred technical solution of this utility model, the end of the bushing is provided with a flange, and the flange is connected to the housing through a Z-shaped connecting piece.

[0012] As a preferred technical solution of this utility model, the connecting shaft is connected to the sprocket, the outer surface of the sprocket is provided with a chain groove, the upper inner surface of the chain groove is provided with an anti-detachment protrusion, and the sprocket is provided with a weight reduction hole.

[0013] As a preferred technical solution of this utility model, a chain is placed in the chain groove, the chain passes through the chain tube, and the chain tube is installed on the tube frame.

[0014] As a preferred technical solution of this utility model, the storage mechanism includes a storage outer shell and a storage inner shell, wherein the storage inner shell is located inside the storage outer shell.

[0015] As a preferred technical solution of this utility model, a storage cover is provided at the upper end of the storage outer shell, a storage cavity is provided inside the storage inner shell, and a grid base is provided below the storage cavity.

[0016] As a preferred technical solution of this utility model, a shell cover is provided on the upper part of the shell, and fastening bolts are provided at the four corners of the shell cover.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model adopts a worm gear mechanism as the core transmission component, and utilizes its inherent self-locking characteristics to ensure that the storage mechanism will not slide down by itself due to gravity or external force interference when suspended at any height, which greatly improves the safety of high-altitude operations and effectively avoids the risk of items falling.

[0018] This utility model's worm gear mechanism features a large reduction ratio, converting a small input torque into a large output traction force. The sprocket and chain operate smoothly with low noise and vibration, ensuring a smooth and reliable lifting process. The bushing is securely connected to the housing via a flange and Z-shaped connecting piece, resulting in a compact and rigid structure suitable for space-constrained high-altitude installation environments.

[0019] The sprocket of this utility model has anti-detachment protrusions on the upper inner surface of the chain groove, which effectively prevents the chain from detaching from the groove due to shaking, uneven load or impact during lifting and lowering; the chain passes through the chain tube and is guided by the tube frame, which further improves the running stability and service life.

[0020] The storage mechanism of this utility model adopts a double-shell structure with an internal grid base to facilitate ventilation and drainage and prevent items from getting damp; the top is equipped with a storage cover to facilitate loading, unloading and sealing of items.

[0021] The present invention features weight-reducing holes on the sprocket, which effectively reduces the overall weight and the system's rotational inertia while ensuring structural strength and transmission performance, making lifting operations easier and reducing the load on the supporting structure.

[0022] This utility model features a worm gear position pointer positioned above the worm gear shaft, allowing operators to visually monitor the lifting height of the storage mechanism, achieving precise positioning, preventing over-winding or collisions, and improving operational efficiency and safety.

[0023] This system can achieve safe lifting without electricity and is suitable for high-altitude work environments where there is no power supply or explosion-proof requirements. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of the present invention; Figure 2 A schematic diagram of the worm gear mechanism provided by this utility model; Figure 3 A schematic diagram of the coupling hole structure provided by this utility model; Figure 4 A schematic diagram of the sprocket structure provided by this utility model; Figure 5 A schematic diagram of the chain structure provided by this utility model; Figure 6 A schematic diagram of the storage mechanism structure provided by this utility model; Figure 7 A partial structural diagram of the storage mechanism provided by this utility model; Figure 8 A schematic diagram of the storage and accommodating cavity structure provided by this utility model; Figure 9 This is a partial structural schematic diagram of the present invention; Figure 10 A schematic diagram of the keyway structure provided by this utility model.

[0025] The image shows: 1. Housing; 101. Housing cover; 102. Fastening bolts; 2. Worm gear mechanism; 201. Worm gear; 2011. Worm gear shaft; 202. Worm; 2021. Worm gear shaft; 3. Worm gear position pointer; 4. Coupling hole; 401. Keyway; 5. Connecting shaft; 501. Shaft keyway; 6. Shaft sleeve; 601. Flange; 602. Z-shaped connecting piece; 7. Sprockets; 701. Chain grooves; 702. Anti-slip protrusions; 703. Weight reduction holes; 8. Chain; 801. Chain reel; 8011. Reel frame; 9. Storage facilities; 901. Storage outer casing; 9011. Storage cover; 902, Inner housing; 9021, Storage cavity; 9022, Grid base. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0027] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely illustrates some embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model. It should be noted that, in the absence of conflict, the embodiments and features and technical solutions in the embodiments of this utility model can be combined with each other. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] Example 1: A sprocket and chain high-altitude storage system includes a housing 1, within which a worm gear mechanism 2 is disposed. The worm gear mechanism 2 is connected to a sprocket 7, and a chain 8 is fitted onto the outer surface of the sprocket 7. The chain 8 is connected to a storage mechanism 9. The worm gear mechanism 2 includes a worm wheel 201, a worm wheel shaft 2011, a worm 202, and a worm shaft 2021. The worm wheel shaft 2011 is disposed at the center of the worm wheel 201. The worm wheel 201 meshes with the worm 202 via gears, and the worm 202 is connected to the worm shaft 2021.

[0029] A worm gear position pointer 3 is provided above the worm gear shaft 2011, and a coupling hole 4 is provided below the worm gear shaft 2011. A keyway 401 is provided on the coupling hole 4. The worm shaft 2021 is connected to the connecting shaft 5, which is provided with a shaft keyway 501 and is fitted with a shaft sleeve 6.

[0030] A flange 601 is provided at the end of the bushing 6, and the flange 601 is connected to the housing 1 through a Z-shaped connecting piece 602. The connecting shaft 5 is connected to the sprocket 7, and a chain groove 701 is provided on the outer surface of the sprocket 7. An anti-detachment protrusion 702 is provided on the upper inner surface of the chain groove 701, and a weight reduction hole 703 is provided on the sprocket 7. A chain 8 is placed in the chain groove 701, and the chain 8 passes through the chain tube 801, which is mounted on the tube frame 8011.

[0031] The storage mechanism 9 includes a storage outer shell 901 and a storage inner shell 902, with the inner shell 902 located inside the storage outer shell 901. A storage cover 9011 is provided at the upper end of the storage outer shell 901, and a storage receiving cavity 9021 is provided inside the storage receiving cavity 9021. A grid base 9022 is provided below the storage receiving cavity 9021. A cover 101 is provided on the upper part of the shell 1, and fastening bolts 102 are provided at the four corners of the cover 101.

[0032] Working principle of the sprocket and chain high-altitude storage system: The system drives the worm shaft 2021 to rotate, which in turn drives the worm 202 to rotate. Since the worm 202 meshes with the worm wheel 201, the rotational motion of the worm is converted into the slow rotation of the worm wheel 201. The worm wheel 201 is fixed to the worm wheel shaft 2011, so the worm wheel shaft 2011 rotates synchronously with it.

[0033] The worm gear shaft 2011 is keyed to the connecting shaft 5 through the coupling hole 4 and the keyway 401 at its lower end, thereby transmitting rotational power to the connecting shaft 5. The connecting shaft 5 has a keyway 501 on its outer circumference and is firmly connected to the sprocket 7, driving the sprocket 7 to rotate synchronously.

[0034] The sprocket 7 has a chain groove 701 on its outer circumference, into which the chain 8 is embedded. An anti-detachment protrusion 702 is provided on the upper inner surface of the chain groove 701 to effectively prevent the chain 8 from coming off due to vibration or load shift during operation. The sprocket 7 also has weight-reducing holes 703, which reduce the overall weight while maintaining structural strength, facilitating installation and operation at heights. One end of the chain 8 is fixed to the storage mechanism 9, while the other end is wound and unwound as the sprocket 7 rotates clockwise or counterclockwise. When the sprocket 7 rotates clockwise or counterclockwise, the chain 8 is wound or released, thereby driving the storage mechanism 9 to rise or fall vertically.

[0035] The chain 8 is inserted into the chain tube 801, which is mounted on the tube frame 8011. The chain tube 801 serves to guide and protect the chain, reduce wear, and improve running stability.

[0036] The storage mechanism 9 consists of an outer storage shell 901 and an inner storage shell 902, forming a double-layer protective structure to enhance dustproof, rainproof, and impact resistance. The inner storage shell 902 has a storage cavity 9021 for holding items to be lifted; its bottom has a grid base 9022, which reduces weight and facilitates ventilation and drainage, preventing items from getting damp. The top of the outer storage shell 901 has an openable storage cover 9011 for easy loading, unloading, and maintenance of items.

[0037] The worm gear mechanism 2 has a self-locking characteristic. Because the worm lead angle is small, the worm wheel cannot drive the worm in reverse. Therefore, even in the event of power failure or no external force, the storage mechanism 9 can be stably suspended at any height and will not slide down due to gravity, which greatly improves the safety of high-altitude operations.

[0038] The entire transmission system is supported and positioned by the bushing 6. The end of the bushing 6 is provided with a flange 601, which is firmly connected to the housing 1 by a Z-shaped connecting piece 602 to ensure that the transmission components maintain coaxiality and stability during operation. The top of the housing 1 is provided with a cover 101, which is sealed and fixed by fastening bolts 102 at the four corners, facilitating the inspection and protection of the internal mechanism.

[0039] The sprocket and chain high-altitude storage system achieves safe, stable, and controllable lifting and storage of high-altitude items through the coordinated operation of worm gear reduction and self-locking transmission, reliable traction of sprockets and chains, and modular storage structure. It is suitable for scenarios requiring high-altitude material management.

[0040] Working process: Load items, open the storage cover 9011 on top of the storage mechanism 9, put the tools, equipment or materials to be stored into the storage cavity 9021 of the inner storage housing 902, close the storage cover 9011 and ensure it is sealed.

[0041] The worm shaft 2021 is driven to rotate by a manual crank or an external motor. The worm shaft 2021 drives the worm 202 to rotate, and the worm 202 meshes with the worm wheel 201, transmitting the rotational motion to the worm wheel 201.

[0042] The worm gear 201 drives the worm gear shaft 2011 to rotate synchronously. The worm gear shaft 2011 transmits torque to the connecting shaft 5 through the coupling hole 4 and the keyway 401 at its lower end. The connecting shaft 5 and the sprocket 7 are rigidly connected through the shaft keyway 501, thereby driving the sprocket 7 to rotate.

[0043] When the sprocket 7 rotates, the chain groove 701 on its outer surface drives the chain 8 to wind up. Since one end of the chain 8 is fixed to the storage mechanism 9 and the other end winds around the sprocket, the storage mechanism 9 is smoothly lifted upward.

[0044] During operation, the chain 8 passes through the chain tube 801 and is guided by the tube frame 8011 to ensure stable running trajectory; the anti-detachment protrusion 702 in the chain groove 701 effectively prevents the chain from jumping off.

[0045] A worm gear position pointer 3 is located above the worm gear shaft 2011, allowing operators to determine the lifting height of the storage mechanism 9 by observing the pointer's position. When the storage mechanism 9 reaches the predetermined height, the drive of the worm gear shaft 2021 is stopped.

[0046] Because the worm gear mechanism 2 has a self-locking characteristic, even if the drive stops, the storage mechanism 9 will not fall due to gravity and can be safely suspended at a high altitude for a long time. Reversing the worm shaft 2021 causes the worm 202 to drive the worm wheel 201 to rotate in the opposite direction, which in turn causes the sprocket 7 to rotate in the opposite direction. As the sprocket 7 rotates in the opposite direction, the chain 8 is gradually released, and the storage mechanism 9 slowly descends under its own gravity. Due to the large reduction ratio of the worm gear mechanism, the descent speed is controllable and smooth, avoiding impact. When the storage mechanism 9 reaches the height of the ground or operating platform, the drive stops. Open the storage cover 9011 and remove the required items.

[0047] If no further storage is required, the unloaded storage mechanism 9 can be raised to a safe height to avoid ground obstructions; if continuous operation is required, the above process can be repeated. The entire system is securely mounted inside the housing 1 via the bushing 6, flange 601, and Z-shaped connecting piece 602, ensuring the stability of the transmission components during lifting and reducing vibration and sway. The cover 101 at the top of the housing 1 is sealed with fastening bolts 102, protecting the internal mechanisms from dust and rainwater corrosion and facilitating regular maintenance. The weight-reducing hole 703 on the sprocket 7 reduces the moment of inertia without affecting strength, making operation easier.

[0048] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A sprocket and chain high-altitude storage system, comprising a housing (1), characterized in that, The housing (1) is provided with a worm gear mechanism (2), which is connected to a sprocket (7). A chain (8) is fitted on the outer surface of the sprocket (7), and the chain (8) is connected to a storage mechanism (9).

2. The sprocket and chain high-altitude storage system according to claim 1, characterized in that, The worm gear mechanism (2) includes a worm wheel (201), a worm wheel shaft (2011), a worm (202), and a worm shaft (2021). The worm wheel shaft (2011) is located at the center of the worm wheel (201). The worm wheel (201) meshes with the worm (202) gear, and the worm (202) is connected to the worm shaft (2021).

3. The sprocket and chain high-altitude storage system according to claim 2, characterized in that, A worm gear position pointer (3) is provided above the worm gear shaft (2011), and a coupling hole (4) is provided below the worm gear shaft (2011). A keyway (401) is provided on the coupling hole (4).

4. The sprocket and chain high-altitude storage system according to claim 3, characterized in that, The worm shaft (2021) is connected to the connecting shaft (5), the connecting shaft (5) is provided with a shaft keyway (501), and the connecting shaft (5) is covered with a shaft sleeve (6).

5. The sprocket and chain high-altitude storage system according to claim 4, characterized in that, The end of the bushing (6) is provided with a flange (601), and the flange (601) is connected to the housing (1) through a Z-shaped connecting piece (602).

6. The sprocket and chain high-altitude storage system according to claim 5, characterized in that, The connecting shaft (5) is connected to the sprocket (7). The outer surface of the sprocket (7) is provided with a chain groove (701). The upper inner surface of the chain groove (701) is provided with an anti-detachment protrusion (702). The sprocket (7) is provided with a weight reduction hole (703).

7. The sprocket and chain high-altitude storage system according to claim 6, characterized in that, A chain (8) is placed in the chain groove (701), and the chain (8) is inserted into the chain tube (801), which is mounted on the tube frame (8011).

8. The sprocket and chain high-altitude storage system according to claim 7, characterized in that, The storage mechanism (9) includes a storage outer shell (901) and a storage inner shell (902), the storage inner shell (902) being located inside the storage outer shell (901).

9. A sprocket and chain high-altitude storage system according to claim 8, characterized in that, The upper end of the storage outer shell (901) is provided with a storage cover (9011), the storage inner shell (902) is provided with a storage cavity (9021), and the storage cavity (9021) is provided with a grid base (9022) below it.

10. A sprocket and chain high-altitude storage system according to claim 1, characterized in that, The upper part of the housing (1) is provided with a cover (101), and fastening bolts (102) are provided at the four corners of the cover (101).

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