Coal mine underground chute lifting device

Abstract

The utility model discloses a coal mine underground chute lifting device which comprises a hook, a connecting plate and a lifting chain which are connected in a hinged mode, the lower portion of the hook is a hook portion facing the inner side, the middle of the hook is a lower handle portion, the upper portion of the hook is an upper handle portion, the hook portion is sequentially connected with the lower handle portion and the upper handle portion, and the upper handle portion inclines towards the inner side and forms a certain angle with the lower handle portion. The upper handle portions of the two hooks intersect, a hinge shaft is arranged at the intersection, the ends of the upper handle portions are hinged to the lower ends of connecting plates, and the upper ends of the connecting plates on the two sides are connected with the two ends of a lifting chain respectively. The device is compact in overall structure and convenient to use, a traditional unsafe iron wire and horseshoe hook carrying mode can be effectively replaced, the safety and efficiency of coal mine underground chute mounting operation are improved, and the device has wide application prospects.

Description

Technical Field

[0001] This utility model relates to the technical field of chute installation, and in particular to a coal mine underground chute lifting and transporting device. Background Technology

[0002] In underground coal mine material transport, chutes are one of the commonly used transportation devices. Due to the limited working space underground, chutes are mostly transported in sections and installed section by section at the working face. During installation, each section of the chute must be manually lifted and moved to the designated location for connection. Currently, simple tools such as wire and horseshoe hooks are commonly used for binding and lifting, but this method has serious drawbacks: firstly, the wire is not securely fixed and is prone to loosening; secondly, the horseshoe hooks have unstable contact with the chute and are prone to slipping during handling, causing the chute to fall and resulting in personnel injuries. This method not only poses safety hazards but also affects installation efficiency. Therefore, there is an urgent need for a safe, reliable, and structurally stable chute lifting tool to improve the safety and efficiency of underground operations. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a coal mine underground chute lifting device.

[0004] The technical solution adopted by this utility model is a coal mine underground chute lifting device, including a hook with hinged connection, a connecting plate and a lifting chain. The lower part of the hook is a hook portion facing inward, the middle part of the hook is a lower handle portion, and the upper part of the hook is an upper handle portion. The hook portion is connected to the lower handle portion and the upper handle portion in sequence. The upper handle portion is inclined inward and forms a certain angle with the lower handle portion. The upper handle portions of the two hooks cross each other, and a hinge shaft is set at the intersection. The end of the upper handle portion is hinged to the lower end of the connecting plate, and the upper ends of the two connecting plates are respectively connected to the two ends of the lifting chain.

[0005] Furthermore, the upper handles of the two hooks cross at the middle.

[0006] Furthermore, the connecting plate and the upper handle of one of the hooks are hinged to the same side of the upper handle of the other hook.

[0007] Furthermore, the hinge axis is a pin.

[0008] Furthermore, the hooks are made from cut steel plates.

[0009] Furthermore, the connecting plate is made of a section of flat iron.

[0010] The coal mine underground chute hoisting device provided by this utility model has the following beneficial effects:

[0011] 1. The structure is stable and safe. The two hooks are cross-hinged to form a self-locking structure during the lifting process. The higher it is lifted, the tighter it is clamped, which effectively prevents the chute from falling off and significantly reduces the risk to personal safety.

[0012] 2. Easy to operate, quick to attach and detach. The hook is made of steel plate and the hook part fits the chute structure, so it can be attached quickly. The upper chain can be quickly connected to the hoist or lifting device to improve the overall lifting efficiency.

[0013] 3. It is highly versatile and reusable. The device is composed of steel plates, flat iron and standard chains, and is compatible with various types of chutes. The materials are widely available and can be processed on-site. It is low in cost, reusable and economical.

[0014] 4. The mechanical design is reasonable, the self-locking fastening prevents slippage, and the upper and lower handles of the hook have a scientifically designed structure. As the lifting angle changes, the self-locking ability is enhanced, ensuring the stability of the chute during transportation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] In the diagram: 1. Hook; 11. Hook part; 12. Lower handle part; 13. Upper handle part; 2. Connecting plate; 3. Hanging chain; 4. Hinge shaft. Detailed Implementation

[0017] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a coal mine underground chute lifting device.

[0018] like Figure 1 As shown, a coal mine underground chute lifting device includes a hook 1 with hinged connection, a connecting plate 2, and a lifting chain 3. The lower part of the hook 1 is a hook portion 11 facing inward, the middle part of the hook 1 is a lower handle portion 12, and the upper part of the hook 1 is an upper handle portion 13. The hook portion 11 is connected to the lower handle portion 12 and the upper handle portion 13 in sequence. The upper handle portion 13 is inclined inward and forms a certain angle with the lower handle portion 12. The upper handle portions 13 of the two hooks 1 cross each other, and a hinge shaft 4 is provided at the intersection. The end of the upper handle portion 13 is hinged to the lower end of the connecting plate 2, and the upper ends of the two connecting plates 2 are respectively connected to the two ends of the lifting chain 3.

[0019] In this embodiment, the chute lifting device is made of scrap steel plates, flat iron and small chains. The hook 1 is made by cutting steel plates, the connecting plate 2 is made of a section of flat iron, the lifting chain 3 is made of a small chain, and the hinge shaft 4 is made of a pin.

[0020] The upper handles 13 of the two hooks 1 cross each other in the middle, and the connecting plate 2 and the upper handle 13 of one of the hooks 1 are hinged to the same side of the upper handle 13 of the other hook 1.

[0021] When using the chute lifting device to lift the chute, hook the hooks 11 of the two hooks 1 onto the reinforcing ribs or pre-reserved lifting points on both sides of the chute, ensuring that the hooks 11 are firmly locked onto the edge of the chute. Connect the upper end of the lifting chain 3 to the manual or electric hoist downhole and begin the lifting operation. During the lifting process, the structure of the cross hooks will automatically tighten to achieve stable locking. Lift the chute to a suitable height, and with manual assistance or by moving it along the track to the installation point, then slowly lower the chute to the ground. After lowering, disconnect the hooks 1 from the chute, and the lifting device can be used to transport the next section of the chute, allowing for cyclical use.

[0022] The device has a compact overall structure and is easy to use. It can effectively replace the traditional and unsafe method of transporting materials using wire and horseshoe hooks, improving the safety and efficiency of underground chute installation operations in coal mines, and has broad application prospects.

[0023] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A coal mine underground chute hoisting device, characterized in that, It includes a hinged hook (1), a connecting plate (2) and a chain (3). The lower part of the hook (1) is a hook part (11) facing inward. The middle part of the hook (1) is a lower handle part (12). The upper part of the hook (1) is an upper handle part (13). The hook part (11) is connected to the lower handle part (12) and the upper handle part (13) in sequence. The upper handle part (13) is inclined inward and forms a certain angle with the lower handle part (12). The upper handle parts (13) of the two hooks (1) cross each other. A hinge shaft (4) is set at the intersection. The end of the upper handle part (13) is hinged to the lower end of the connecting plate (2). The upper ends of the two connecting plates (2) are respectively connected to the two ends of the chain (3).

2. The coal mine underground chute hoisting device according to claim 1, characterized in that, The upper handles (13) of the two hooks (1) cross each other in the middle.

3. The coal mine underground chute hoisting device according to claim 1 or 2, characterized in that, The upper handle (13) of the connecting plate (2) and one of the hooks (1) is hinged to the same side of the upper handle (13) of the other hook (1).

4. The coal mine underground chute hoisting device according to claim 1, characterized in that, The hinge shaft (4) is a pin.

5. The coal mine underground chute hoisting device according to claim 1, characterized in that, The hook (1) is made by cutting steel plate.

6. The coal mine underground chute hoisting device according to claim 5, characterized in that, The connecting plate (2) is made of a section of flat iron.

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