Coal seam mining roadway surrounding rock stability supporting device

Abstract

The utility model provides a coal seam mining roadway surrounding rock stability supporting device, and mainly relates to the technical field of road construction protection equipment. A coal seam mining roadway surrounding rock stability supporting device comprises a base, a vertical rod is fixedly arranged at the top of the base, a guide rod sleeves the outer ring of the vertical rod, a supporting plate is fixedly arranged at the top of the guide rod, a sleeve sleeves the outer ring of the guide rod, a limiting ring is in threaded connection with the outer ring of the sleeve, and supporting rods are hinged to the outer ring of the limiting ring in an array mode. The supporting device has the advantages that the height of the guide rod is adjusted through threaded connection, so that the supporting plate is tightly attached to the inner wall of the upper end of a roadway, and the requirements of roadways with different heights are met; the three supporting rods are driven to contract and stretch through threaded connection, so that after the supporting rods stretch, the contact face of the supporting device and the bottom can be enlarged, stability is improved, after the supporting rods contract, the occupied area can be reduced, and storage and carrying are convenient.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of road construction protection equipment, and specifically relates to a supporting device for the stability of the surrounding rock of a coal seam mining roadway. Background Technique

[0002] When the roadway excavation is completed, it is often necessary to use a roadway support structure to support the roadway. However, the existing roadway support structures generally consist of many accessories. When in use, in the face of roadways with different heights, workers need to measure the height of the roadway in advance and then select brackets of different lengths for connection. The whole process takes a lot of time and energy. At the same time, during installation, only by burying the steel pipe into the foundation, the supporting area is narrow and the stability is not high. Therefore, this application provides a supporting device for the stability of the surrounding rock of a coal seam mining roadway to facilitate solving the problems raised above. Content of the Utility Model

[0003] To achieve the above object, the utility model is realized through the following technical solutions:

[0004] A supporting device for the stability of the surrounding rock of a coal seam mining roadway includes a base. A vertical rod is fixedly arranged on the top of the base. A guide rod is sleeved outside the vertical rod. A supporting plate is fixedly arranged at the top of the guide rod. A sleeve is sleeved outside the guide rod. A limiting ring is threadedly connected to the outer circle of the sleeve. Support rods are arrayed and hinged to the outer circle of the limiting ring.

[0005] Symmetric sliding grooves are opened on the outer circle of the vertical rod. Symmetric sliders are opened on the inner circle of the guide rod. The sliders are slidably connected along the sliding grooves. The outer circle of the guide rod is threadedly connected to the inner circle of the sleeve.

[0006] A convex block is fixedly arranged near the bottom of the outer circle of the vertical rod. A limiting groove is fixedly arranged at the bottom of the sleeve. The convex block abuts against the inner wall of the limiting groove. A handle is fixedly arranged near the top of the outer circle of the sleeve.

[0007] A guide sleeve is slidably connected to the outer circle of each support rod. A connecting rod is hinged to the outer circle of each guide sleeve. The other end of each connecting rod is hinged to the top of the base. The other end of the support rod is spherical.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] The structure of the utility model is simple, facilitating installation and use. The inner and outer rings of the sleeve are threadedly connected to the guide rod and the limit ring respectively, thereby driving the two to move in opposite directions. The height of the guide rod is adjusted through threaded connection, enabling the support plate to closely fit the inner wall of the upper end of the roadway, thus meeting roadways of different heights. Through threaded connection, the contraction and extension of the three support rods are driven. After the support rods are extended, the contact area between the support device and the bottom can be enlarged to improve stability. After the support rods are contracted, the floor area can be reduced, facilitating storage and handling. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIG. Figure 1 is a schematic diagram of the overall structure of the utility model;

[0011] FIG. Figure 2 is a schematic diagram of the disassembled structure of the utility model;

[0012] FIG. Figure 3 is a schematic cross-sectional structure diagram of the utility model.

[0013] Reference numerals shown in the drawings: 1, base; 2, vertical rod; 201, chute; 202, convex block; 3, guide rod; 301, slider; 4, support plate; 5, sleeve; 501, handle; 6, limit ring; 7, support rod; 8, guide sleeve; 9, connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] In combination with the drawings and specific embodiments, the present utility model will be further described. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by this application.

[0015] In combination with the drawings, a support device for the stability of the surrounding rock of a coal seam mining roadway includes a base 1. A vertical rod 2 is fixedly arranged at the top of the base 1. A guide rod 3 is sleeved outside the vertical rod 2. A support plate 4 is fixedly arranged at the top of the guide rod 3. A plurality of rib plates are fixedly arranged in an array between the bottom of the support plate 4 and the outer circle of the guide rod 3. Through this structural design, the structural stability is enhanced. A sleeve 5 is sleeved outside the guide rod 3. A limit ring 6 is threadedly connected to the outer circle of the sleeve 5. The support rods 7 are hinged in an array to the outer circle of the limit ring 6.

[0016] Chutes 201 are symmetrically opened on the outer circle of the vertical rod 2. Sliders 301 are symmetrically opened on the inner circle of the guide rod 3. The sliders 301 are slidably connected along the chutes 201. Through this structural design, a guiding effect is exerted on the guide rod 3. The outer circle of the guide rod 3 is threadedly connected to the inner circle of the sleeve 5. The thread directions of the outer and inner circles of the guide rod 3 are opposite.

[0017] A convex block 202 is fixedly arranged near the bottom on the outer circle of the vertical rod 2. A limit groove is fixedly arranged at the bottom of the sleeve 5. The convex block 202 abuts against the inner wall of the limit groove. A handle 501 is fixedly arranged near the top on the outer circle of the sleeve 5. Through this structural design, it is convenient to rotate the sleeve 5, thereby driving the guide rod 3 and the limit ring 6 to move in opposite directions.

[0018] A guide sleeve 8 is slidably connected to the outer circle of each support rod 7. A connecting rod 9 is hinged to the outer circle of each guide sleeve 8. The other end of each connecting rod 9 is hinged to the top of the base 1. Through this mechanism design, the device is supported, and the support stability is increased. The other end of the support rod 7 is spherical. Through this structural design, it contacts the ground and plays a stabilizing role for the device.

[0019] When reinforcing the surrounding rock of the roadway in the coal mining face, the base 1 is fixedly installed in the roadway. Rotate the handle 501 to drive the sleeve 5 to rotate, and then drive the guide rod 3 to move upward so that the support plate 4 fits tightly against the inner wall of the upper end of the roadway to meet the needs of roadways of different heights, and drive the limit ring 6 to move downward, thereby driving the end of the support rod 7 to extend outward, increasing the support area and improving the stability; after the operation is completed, rotate the handle 501 in the reverse direction to separate the support plate 4 from the inner wall of the upper end of the roadway, and retract the support rod 7 inward to reduce the floor area and facilitate storage.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A support device for the stability of the surrounding rock of a coal seam mining roadway, including a base (1), characterized in that: A vertical rod (2) is fixedly arranged at the top of the base (1). A guide rod (3) is sleeved outside the vertical rod (2). A support plate (4) is fixedly arranged at the top of the guide rod (3). A sleeve (5) is sleeved outside the guide rod (3). A limit ring (6) is threadedly connected to the outer circle of the sleeve (5). Support rods (7) are symmetrically hinged to the outer circle of the limit ring (6).

2. The surrounding rock stability support device for a coal seam mining roadway according to claim 1, characterized in that: Chute grooves (201) are symmetrically formed on the outer circle of the vertical rod (2). Sliders (301) are symmetrically formed on the inner circle of the guide rod (3). The sliders (301) are slidably connected along the chute grooves (201). The outer circle of the guide rod (3) is threadedly connected to the inner circle of the sleeve (5).

3. A support device for the stability of the surrounding rock of a coal seam mining roadway according to claim 1, characterized in that: A convex block (202) is fixedly arranged near the bottom of the outer circle of the vertical rod (2). A limit groove is fixedly arranged at the bottom of the sleeve (5). The convex block (202) abuts against the inner wall of the limit groove. A handle (501) is fixedly arranged near the top of the outer circle of the sleeve (5).

4. A support device for the stability of the surrounding rock of a coal seam mining roadway according to claim 1, characterized in that: A guide sleeve (8) is slidably connected to the outer circle of each support rod (7). A connecting rod (9) is hinged to the outer circle of each guide sleeve (8). The other end of each connecting rod (9) is hinged to the top of the base (1). The other end of the support rod (7) is spherical in shape.

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