A support frame for safe production in coal mines

Abstract

This utility model discloses a support frame for safe production in coal mines, including two symmetrically arranged bases. Hydraulic supports are fixedly mounted on the upper surfaces of both bases, and a lifting plate is fixedly mounted between the upper ends of the hydraulic supports. A bearing plate is fixedly mounted on the upper surface of the lifting plate. Side guard plates are hinged to both sides of the bearing plate, and an arc-shaped buffer assembly connects the bottom surface of the side guard plates and the bottom surface of the bearing plate. A top guard plate is connected to the upper surface of the bearing plate via four sets of cross-shaped buffer mechanisms. This utility model effectively protects against falling rocks by hinged side guard plates on both sides of the bearing plate and the installation of arc-shaped buffer assemblies. The top guard plate is connected to the upper surface of the bearing plate via four sets of cross-shaped buffer mechanisms. The slider in the buffer mechanism can slide on the slide rod, and in conjunction with the springs on both sides, effectively absorbs and disperses the impact force when the top surface is impacted by falling rocks, preventing the impact force from directly acting on the support frame and preventing damage to the support frame due to excessive force.

Description

Technical Field

[0001] This utility model relates to the technical field of coal mine production equipment, specifically to a support frame for safe production in coal mines. Background Technology

[0002] In coal mine safety operations, temporary electrical equipment is often needed to complete various production tasks. However, the underground environment of coal mines is complex and changeable, with poor rock wall stability and frequent dangerous situations such as rockfalls. These sudden rockfalls can seriously damage temporary electrical equipment; therefore, support frames are needed to shield and protect the temporary electrical equipment.

[0003] Currently, traditional safety support frames for coal mines have revealed numerous shortcomings in practical applications. Regarding comprehensive protection, most only focus on protecting the top surface of electrical equipment, neglecting the potential threat posed by falling rocks from the sides of the tunnel. Once rocks fall from the tunnel side, the unprotected electrical equipment will be directly impacted and easily damaged. Furthermore, in terms of buffer protection, traditional support frames often lack effective cushioning structures. When a rockfall occurs, the impact force acts directly on the support frame, causing it to bear enormous stress and easily leading to structural damage. Utility Model Content

[0004] (I) Technical Issues

[0005] This utility model provides a support frame for safe production in coal mines, which solves the problems of incomplete protection, lack of cushioning and easy damage of traditional support frames.

[0006] (II) Technical Content

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a support frame for safe production in coal mines, comprising two bases symmetrically arranged on the left and right, with hydraulic supports fixedly mounted on the upper surfaces of the bases, and a lifting plate fixedly mounted between the upper ends of the hydraulic supports. A bearing plate is fixedly mounted on the upper surface of the lifting plate, and side guard plates are hinged to the left and right sides of the bearing plate. An arc-shaped buffer assembly is connected between the bottom surface of the side guard plates and the bottom surface of the bearing plate. A top guard plate is connected to the upper surface of the bearing plate through four sets of buffer mechanisms arranged in a cross shape. The buffer mechanism includes a slide groove fixedly mounted on the upper surface of the bearing plate, a slide rod fixedly mounted inside the slide groove, a slider slidingly mounted on the slide rod, and springs sleeved on the slide rod and on both sides of the slider. A connecting rod is hinged to the slider, and the upper end of the connecting rod is hinged to the bottom surface of the top guard plate.

[0008] Furthermore, the arc-shaped buffer assembly includes an arc-shaped cavity fixedly disposed on the bottom surface of the top guard plate, and an arc-shaped guide rod fixedly disposed on the bottom surface of the side guard plate. The arc-shaped guide rod is inserted into the arc-shaped cavity, and a buffer spring is provided inside the arc-shaped cavity.

[0009] Furthermore, a self-locking caster wheel is fixedly provided at the bottom of the base.

[0010] Furthermore, a reinforcing crossbar is fixedly provided on the front side between the bases.

[0011] Furthermore, the top surface of the top guard plate is provided with downward sloping surfaces all around.

[0012] (III) Technical Effects

[0013] The advantages of this utility model compared with the prior art are as follows:

[0014] 1. This utility model, by hinged side guard plates on the left and right sides of the bearing plate and setting arc-shaped buffer components, allows the side guard plates to absorb the impact energy when there is a rockfall impact on the side of the tunnel, thus achieving effective protection against rockfall from the side and making up for the lack of side protection in traditional support frames.

[0015] 2. The upper part of the bearing plate is connected to the top guard plate by four sets of buffer mechanisms arranged in a cross shape. The slider in the buffer mechanism can slide on the slide rod. In conjunction with the springs on both sides, when the top surface is impacted by falling rocks, the spring is compressed and the slider slides, which effectively absorbs and disperses the impact force, avoids the impact force acting directly on the support frame, and prevents the support frame from being damaged due to excessive force. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a support frame for safe production in coal mines, as per this utility model. Figure 1 .

[0017] Figure 2 This is a three-dimensional structural diagram of a support frame for safe production in coal mines, as per this utility model. Figure 2 .

[0018] Figure 3 This is a front view structural schematic diagram of a support frame for safe production in coal mines according to this utility model.

[0019] Figure 4 This is a left-side structural schematic diagram of a support frame for safe production in coal mines according to this utility model.

[0020] Figure 5 This is a bottom view schematic diagram of a support frame for safe production in coal mines according to this utility model.

[0021] Figure 6 This is a schematic diagram of the cross-sectional structure of a support frame for safe production in coal mines according to this utility model.

[0022] As shown in the figure: 1. Base; 2. Hydraulic support; 3. Lifting plate; 4. Bearing plate; 5. Side guard plate; 6. Arc-shaped buffer assembly; 7. Buffer mechanism; 8. Top guard plate; 9. Slide groove; 10. Slide rod; 11. Slider; 12. Spring; 13. Connecting rod; 14. Arc-shaped cavity; 15. Arc-shaped guide rod; 16. Self-locking caster wheel; 17. Reinforcing crossbar; 18. Slope. Detailed Implementation

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided with," "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] Combined with appendix Figure 1 To be continued Figure 6 A support frame for safe production in coal mines includes two symmetrically arranged bases 1. Hydraulic supports 2 are fixedly mounted on the upper surfaces of both bases 1. A lifting plate 3 is fixedly mounted between the upper ends of the hydraulic supports 2. A bearing plate 4 is fixedly mounted on the upper end of the lifting plate 3. Side guard plates 5 are hinged to both sides of the bearing plate 4. An arc-shaped buffer assembly 6 is connected between the bottom surface of the side guard plate 5 and the bottom surface of the bearing plate 4. A top guard plate 8 is connected to the upper end of the bearing plate 4 via four sets of cross-shaped buffer mechanisms 7. The buffer mechanism 7 includes a sliding groove 9 fixedly mounted on the upper surface of the bearing plate 4. A sliding rod 10 is fixedly mounted inside the sliding groove 9. A slider 11 slides on the sliding rod 10. Springs 12 are sleeved on the sliding rod 10 and on both sides of the slider 11. A connecting rod 13 is hinged to the slider 11, and the upper end of the connecting rod 13 is hinged to the bottom surface of the top guard plate 8.

[0027] The arc-shaped buffer assembly 6 includes an arc-shaped cavity 14 fixedly disposed on the bottom surface of the top guard plate 8, and an arc-shaped guide rod 15 fixedly disposed on the bottom surface of the side guard plate 5. The arc-shaped guide rod 15 is inserted into the arc-shaped cavity 14 and a buffer spring is provided inside the arc-shaped cavity 14.

[0028] The base 1 is fixedly provided with a self-locking universal wheel 16 at the bottom, and a reinforcing crossbar 17 is fixedly provided on the front side between the bases 1. The top guard plate 8 is provided with a downward sloping surface 18 on all four sides of its upper end surface.

[0029] The working principle of this utility model is as follows: The support frame for safe production in coal mines achieves lifting and adjustment through hydraulic pillars 2, and uses buffer mechanism 7 and arc-shaped buffer components 6 to buffer the impact of falling rocks from the top and sides. Combined with side guard plates 5, top guard plate 8, and other components, it provides protection for temporary electrical equipment. The self-locking casters 16 at the bottom of the base 1 facilitate equipment movement and fixation, the reinforcing crossbar 17 enhances overall stability, and the slope 18 of the top guard plate 8 is designed to facilitate the sliding of falling rocks.

[0030] The working process of this utility model is as follows:

[0031] 1. Equipment movement and positioning: Push the support frame and use the self-locking casters 16 at the bottom of the base 1 to move it to a suitable position above the temporary electrical equipment that needs protection, and then lock the casters to make the support frame securely positioned.

[0032] 2. Height Adjustment: Start the hydraulic support 2 and control its extension and retraction through the hydraulic system, thereby driving the lifting plate 3, bearing plate 4, top protection plate 8 and other components to rise or fall, adjusting the top protection plate 8 to a suitable height to maintain a safe distance from the top of the roadway, while ensuring effective protection of electrical equipment.

[0033] 3. Top Surface Protection and Buffering: When a falling rock impacts the top guard plate 8, the impact force is transmitted to the buffering mechanism 7 below through the top guard plate 8. The slider 11 in the buffering mechanism 7 slides on the slide rod 10, and the springs 12 on both sides of the slide rod 10 are compressed. The deformation of the springs 12 absorbs the impact force and disperses the impact force to the bearing plate 4, thereby reducing the impact of falling rocks on the overall structure of the support frame and protecting the internal electrical equipment.

[0034] 4. Side protection and buffer: If a rock falls on the side of the tunnel and hits the side guard plate 5, the side guard plate 5 rotates around the hinge point with the bearing plate 4, and at the same time drives the arc-shaped guide rod 15 to slide in the arc-shaped cavity 14. The buffer spring inside the arc-shaped cavity 14 is compressed by force, absorbing the impact energy of the rock falling on the side, preventing the side guard plate 5 from being excessively deformed, and providing side protection for electrical equipment.

[0035] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A support frame for safe production in coal mines, comprising two bases (1) symmetrically arranged on the left and right, each base (1) having a hydraulic support (2) fixedly mounted on its upper surface, and a lifting plate (3) fixedly mounted between the upper ends of the hydraulic support (2), characterized in that: The upper end of the lifting plate (3) is fixedly provided with a bearing plate (4), and the left and right sides of the bearing plate (4) are hinged with side guard plates (5). An arc-shaped buffer assembly (6) is connected between the bottom surface of the side guard plate (5) and the bottom surface of the bearing plate (4). The upper end of the bearing plate (4) is connected with a top guard plate (8) through four sets of buffer mechanisms (7) arranged in a cross shape. The buffer mechanism (7) includes a slide groove (9) fixedly installed on the upper end face of the bearing plate (4), a slide rod (10) fixedly installed inside the slide groove (9), a slider (11) slidably installed on the slide rod (10), springs (12) are sleeved on the slide rod (10) and on both sides of the slider (11), a connecting rod (13) is hinged on the slider (11), and the upper end of the connecting rod (13) is hinged to the bottom surface of the top guard plate (8).

2. The support frame for safe production in coal mines according to claim 1, characterized in that: The arc-shaped buffer assembly (6) includes an arc-shaped cavity (14) fixedly disposed on the bottom surface of the top guard plate (8), and an arc-shaped guide rod (15) fixedly disposed on the bottom surface of the side guard plate (5). The arc-shaped guide rod (15) is inserted into the arc-shaped cavity (14) and a buffer spring is provided inside the arc-shaped cavity (14).

3. The support frame for safe production in coal mines according to claim 1, characterized in that: The base (1) is fixedly provided with a self-locking universal wheel (16) at its bottom.

4. A support frame for safe production in coal mines according to claim 1, characterized in that: A reinforcing crossbar (17) is fixedly provided on the front side between the bases (1).

5. A support frame for safe production in coal mines according to claim 1, characterized in that: The top protective plate (8) has downward sloping surfaces (18) on all four sides of its upper end.

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