Gravel splash-proof safety device for shale exploitation

Abstract

The utility model relates to the technical field of shale exploitation, in particular to a broken stone splash-proof safety device for shale exploitation. The broken stone splash-proof safety device for shale exploitation comprises a conical top cover, a plurality of sets of annularly-distributed side supporting components are installed on the conical top cover, and arc-shaped rubber outer cover pieces and arc-shaped rubber inner cover pieces are embedded between the adjacent side supporting components. According to the macadam splash-proof safety device for shale exploitation, shale is crushed by starting a drill bit, a gap between the bottom of the conical top cover and the uneven ground is remarkably eliminated through the telescopic side plates, the arc-shaped rubber outer cover piece and the arc-shaped rubber inner cover piece, the risk that macadam splashes from the bottom is greatly reduced, and the service life of the macadam splash-proof safety device is prolonged. And an independent elastic telescopic mechanism of the side plate is matched with the ductility of the arc-shaped rubber outer cover sheet and the arc-shaped rubber inner cover sheet, so that the protection cover can automatically adapt to various complex shale surface forms such as inclination and unevenness, and the protection effect is ensured not to be influenced by earth surface conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of shale mining, in particular to a gravel splash-proof safety device for shale mining. Background Art

[0002] During shale mining, a drill bit is needed to crush the shale surface. Existing crushers generally use a motor to drive the drill rod for crushing. Due to the lack of peripheral protection, gravel will fly during the shale crushing process, which can easily cause leg injuries to the operator. The existing technology also places baffles on the periphery of the drill rod, but placing the baffles is not only cumbersome, but also affects the crushing efficiency. In response to the protection problem, the patent document with publication number CN220027116U proposes an improved solution: the upper and lower positions of the motor and the drill bit are adjusted by a hydraulic rod, and a protective cover is set on the outside of the drill bit. The protective cover can move down with the drill bit under the action of the pressing device and wrap it inside. This design can provide certain peripheral protection after the drill bit is positioned, reducing the risk of gravel flying and injuring the operator's legs. However, the protective cover described in the CN220027116U patent has obvious limitations. Its structure mainly covers the top area of ​​the drill bit, and there is inevitably a gap between the bottom and the working ground. When working on a shale layer with an uneven surface (such as tilted or uneven), this gap allows gravel to still splash out, resulting in the protective cover being unable to effectively fit the surface, which greatly reduces its protective effect when crushing the shale.

[0003] In order to solve the above problems, it is necessary to improve the protective cover structure based on the structure of publication number CN220027116U to solve the above technical problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a gravel splash prevention safety device for shale mining.

[0005] The utility model provides a shale mining gravel splash prevention safety device comprising a conical top cover, on which a plurality of annularly distributed side support components are mounted, and the side support components comprise a rotating plate, one end of which is sleeved on a rotating shaft mounted on the bottom of the conical top cover and rotatably connected to the rotating shaft, and retractable side plates are mounted on both sides of the rotating plate, and a dorsal fin ray is fixedly embedded in the outer plate wall of the rotating plate;

[0006] An arc-shaped rubber cover sheet is fixedly embedded between adjacent dorsal fin rays;

[0007] An arc-shaped rubber inner cover piece is fixedly embedded between adjacent side plates.

[0008] Preferably, both side walls of the rotating plate are provided with side grooves, and sliding rods are fixedly installed in the side grooves, sliding blocks are fixedly installed on the sliding rods, and the sliding blocks are fixedly connected to the connecting ends of the side plates.

[0009] Preferably, a spring is sleeved on the sliding rod, one end of the spring is fixedly connected to the inner top wall of the side groove, and the other end of the spring is fixedly connected to the upper surface of the sliding block.

[0010] Preferably, a metal plug-in head is fixedly embedded in the bottom of the side panel.

[0011] Preferably, a plurality of longitudinally distributed rubber strips are fixedly embedded on both the arc-shaped rubber outer cover piece and the arc-shaped rubber inner cover piece, and arc-shaped grooves for elastic expansion, contraction and folding are provided on the cover pieces between adjacent rubber strips.

[0012] Preferably, a through hole is provided on the top of the conical top cover.

[0013] Compared with related technologies, the shale mining gravel splash prevention safety device provided by the utility model has the following beneficial effects:

[0014] The utility model crushes the shale by starting the drill bit, and the retractable side panels, arc-shaped rubber outer cover pieces and arc-shaped rubber inner cover pieces and other components eliminate the gap between the bottom of the conical top cover and the uneven ground, forming a nearly closed protective space, greatly reducing the risk of gravel splashing from the bottom, and effectively protecting the safety of operators. The independent elastic retractable mechanism of the side panels, combined with the ductility of the arc-shaped rubber outer cover pieces and the arc-shaped rubber inner cover pieces, enable the protective cover to automatically adapt to various complex shale surface shapes such as inclination and unevenness, ensuring that the protective effect is not affected by surface conditions, thereby improving the safety of the operator's working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a preferred embodiment of a gravel splash prevention safety device for shale mining provided by the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the connection structure between the conical top cover and the side support component is shown;

[0017] Figure 3 for Figure 2 A schematic structural diagram of the conical top cover shown;

[0018] Figure 4 for Figure 2 A schematic structural diagram of the side support component shown;

[0019] Figure 5 for Figure 1Schematic diagram of the installation structure of the curved rubber outer cover piece and the curved rubber inner cover piece on the side support component;

[0020] Figure 6 for Figure 5 Schematic diagram of the installation structure of the arc-shaped rubber cover piece on the side support component;

[0021] Figure 7 for Figure 5 Schematic diagram of the installation structure of the curved rubber inner cover piece on the side support component shown.

[0022] Numbers in the figure: 1, conical top cover; 1a, through hole; 11, rotating shaft; 2, side support component; 21, rotating plate; 21a, side groove; 22, sliding rod; 23, sliding block; 24, side plate; 241, metal plug-in head; 25, spring; 26, dorsal fin; 3, arc-shaped rubber outer cover piece; 4, arc-shaped rubber inner cover piece. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0025] See also Figures 1 to 7 The embodiment of the utility model provides a gravel splash prevention safety device for shale mining, which includes a conical top cover 1, and a through hole 1a is opened on the top of the conical top cover 1. The conical top cover 1 replaces the protective cover in the patent with publication number CN220027116U and is fixedly connected with the folding frame in the patent. Specifically, the upper cover surface of the conical top cover 1 is welded to the folding frame in the patent with publication number CN220027116U (or after opening through holes on the folding frame and the conical top cover 1, they are fixed to each other with bolts), and the drill bit passes through the through hole 1a, and the shale is crushed by starting the drill bit.

[0026] In the embodiments of the present invention, please refer to Figures 1 to 7, a plurality of annularly distributed side support members 2 are installed on the conical top cover 1, and the side support member 2 includes a rotating plate 21, one end of the rotating plate 21 is sleeved on the rotating shaft 11 installed at the bottom of the conical top cover 1 and is rotatably connected to the rotating shaft 11, and retractable side plates 24 are installed on both sides of the rotating plate 21. Specifically, side grooves 21a are opened on both side walls of the rotating plate 21, and sliding rods 22 are fixedly installed in the side grooves 21a, and sliding blocks 23 are fixedly installed on the sliding rods 22, and the sliding blocks 23 are fixedly connected to the connecting ends of the side plates 24, and a spring 25 is sleeved on the sliding rod 22, one end of the spring 25 is fixedly connected to the inner top wall of the side groove 21a, and the other end of the spring 25 is fixedly connected to the upper surface of the sliding block 23, and an arc-shaped rubber inner cover piece 4 is fixedly embedded between adjacent side plates 24;

[0027] Dorsal fin rays 26 are fixedly embedded in the outer wall of the rotating plate 21 , and arc-shaped rubber cover sheets 3 are fixedly embedded between adjacent dorsal fin rays 26 .

[0028] It should be noted that: when each side support component 2 is opened, the elastic force of the spring 25 causes the sliding block 23 to slide down along the sliding rod 22, so that the side plate 24 constitutes an extended arm structure of the rotating plate 21, and cooperates with the downward pressure of the spring 25 to drive the bottom of the side plate 24 to slide sideways along the shale surface. Since the side plate 24 can be extended and retracted along the rotating plate 21, the side support components 2 opened along different directions of the shale can be adaptively extended and form a cover frame structure, and the arc-shaped rubber inner cover sheet 4 can be extended and folded to achieve adaptation to the shale surface. Therefore, when the drill bit is turned on to crush the shale, the conical top cover 1 cooperates with the arc-shaped rubber outer cover sheet 3 and the arc-shaped rubber inner cover sheet 4 to form a protective cover structure, which reduces the hidden danger of gravel splashing outward due to the uneven shale surface, effectively protects the operator who is crushing the shale, and improves the safety of the operator's working environment.

[0029] Therefore, the present application significantly eliminates the gap between the bottom of the conical top cover 1 and the uneven ground through the retractable side panels 24, the curved rubber outer cover sheet 3, and the curved rubber inner cover sheet 4 structure, forming a nearly closed protective space, greatly reducing the risk of debris splashing from the bottom, and effectively protecting the safety of operators. The independent elastic retractable mechanism of the side panels 24, combined with the ductility of the curved rubber outer cover sheet 3 and the curved rubber inner cover sheet 4, enables the protective cover to automatically adapt to various complex shale surface morphologies such as inclination, unevenness, etc., ensuring that the protective effect is not affected by surface conditions.

[0030] Among them, the dorsal fin 26 provides a supporting skeleton for the arc-shaped rubber outer cover piece 3, enhancing the overall strength and impact resistance of the outer cover, while the arc-shaped rubber inner cover piece 4 is directly located on the inner side, providing a flexible seal closer to the drill bit operating area.

[0031] In this embodiment, the arc-shaped rubber outer cover piece 3 and the arc-shaped rubber inner cover piece 4 are provided, thereby effectively improving the protection strength of the protective cover structure.

[0032] Furthermore, a metal insert 241 is fixedly embedded in the bottom of the side plate 24, thereby improving the stability of the contact surface between the side plate 24 and the shale.

[0033] Furthermore, a number of longitudinally distributed rubber strips are fixedly embedded on the arc-shaped rubber outer cover sheet 3 and the arc-shaped rubber inner cover sheet 4, which improves the strength of the arc-shaped rubber outer cover sheet 3 and the arc-shaped rubber inner cover sheet 4, and the cover sheets between adjacent rubber strips are provided with arc-shaped grooves for elastic expansion and contraction and folding, so as to facilitate the arc-shaped rubber inner cover sheet 4 to expand and contract, fold and fit the shale surface after the local side panel 24 slides back into the side groove 21a.

[0034] In order to prevent dust from overflowing from the gap between the conical top cover 1 and the arc-shaped rubber outer cover piece 3, a sponge can be fixed in the gap between the conical top cover 1 and the arc-shaped rubber outer cover piece 3.

[0035] In this solution, in order to increase the service life of the arc-shaped rubber outer cover sheet 3 and the arc-shaped rubber inner cover sheet 4 and reduce the problem of the arc-shaped rubber outer cover sheet 3 and the arc-shaped rubber inner cover sheet 4 being scratched, worn or even torn by high-speed flying sharp gravel, a composite wear-resistant material can be used to replace rubber, such as embedding high-strength fibers (such as aramid, nylon) in the rubber matrix or adding wear-resistant particles (such as silicon carbide) for reinforcement.

[0036] This application is mainly suitable for shale with undulating surface, and is not suitable for shale terrain with deep trenches, steep slopes or large obstacles.

[0037] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A gravel splash prevention safety device for shale mining, characterized in that: The invention comprises a conical top cover (1), wherein a plurality of annularly distributed side support members (2) are mounted on the conical top cover (1), and the side support members (2) include a rotating plate (21), one end of the rotating plate (21) is sleeved on a rotating shaft (11) mounted on the bottom of the conical top cover (1) and is rotatably connected to the rotating shaft (11), and retractable side plates (24) are mounted on both sides of the rotating plate (21), and a dorsal fin ray (26) is fixedly embedded in the outer plate wall of the rotating plate (21); An arc-shaped rubber cover sheet (3) is fixedly embedded between adjacent dorsal fin rays (26); An arc-shaped rubber inner cover sheet (4) is fixedly embedded between adjacent side panels (24).

2. The shale mining gravel splash prevention safety device according to claim 1, characterized in that: Side grooves (21a) are formed on both side walls of the rotating plate (21), and a sliding rod (22) is fixedly installed in the side groove (21a). A sliding block (23) is fixedly installed on the sliding rod (22), and the sliding block (23) is fixedly connected to the connecting end of the side plate (24).

3. The shale mining gravel splash prevention device according to claim 2 is characterized in that: A spring (25) is sleeved on the sliding rod (22), one end of the spring (25) is fixedly connected to the inner top wall of the side groove (21a), and the other end of the spring (25) is fixedly connected to the upper surface of the sliding block (23).

4. The shale mining gravel splash prevention safety device according to claim 1, characterized in that: A metal plug-in head (241) is fixedly embedded in the bottom of the side plate (24).

5. The shale mining gravel splash prevention safety device according to claim 1, characterized in that: A plurality of longitudinally distributed rubber strips are fixedly embedded on the arc-shaped rubber outer cover sheet (3) and the arc-shaped rubber inner cover sheet (4), and arc-shaped grooves for elastic expansion, contraction and folding are provided on the cover sheets between adjacent rubber strips.

6. The shale mining gravel splash prevention safety device according to claim 1, characterized in that: A through hole (1a) is provided on the top of the conical top cover (1).

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