A supporting and protecting device for coal mine roadway tunneling

Abstract

The utility model provides a kind of supporting protection device of coal mine roadway excavation, comprising: arc supporting member, it includes circular arc supporting beam, the bottom of both ends of supporting beam is fixedly arranged with connecting pedestal, the inside of both ends of supporting beam is slidably arranged with the extension beam same with its curvature, the end of supporting beam is provided with the locking mechanism for locking or releasing between it and extension beam;Vertical supporting member, it includes lower vertical rod and upper vertical rod, the side of lower vertical rod is provided with vertical groove matched with upper vertical rod, upper vertical rod is slidably arranged in the inside of vertical groove, the side of lower vertical rod is provided with the pressing plate for the compression and fixation or release of upper vertical rod;And, inclined strut;The width and height of supporting protection device of coal mine roadway excavation in the utility model can be adjusted respectively, so as to match different specifications of roadway within a certain range.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine equipment technology, specifically relating to a support and protection device for coal mine roadway excavation. Background Technology

[0002] In the mining of resources such as coal, the excavation of roadways is an important task. Roadways refer to the working face roadways. In order to ensure the safety of working in the roadways, support structures need to be installed inside the roadways.

[0003] In the prior art, Chinese utility model patent document with authorization announcement number CN223497928U discloses a support frame for coal mining roadways, which can be adjusted to match roadway supports of different heights, but its width is fixed and cannot be adjusted to match roadway supports of different widths.

[0004] Therefore, it is necessary to design a support and protection device for coal mine roadway excavation that can be adjusted in both width and height to match different specifications of roadways within a certain range, in order to solve the current technical problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a support and protection device for coal mine roadway excavation where both width and height can be adjusted separately, thereby matching different specifications of roadways within a certain range.

[0006] The technical solution of this utility model is: a support and protection device for coal mine roadway excavation, comprising: An arc-shaped support component includes an arc-shaped support beam, with connecting bases fixedly installed at the bottom of both ends of the support beam, and extension beams with the same curvature slidingly installed inside both ends of the support beam, and a locking mechanism for locking or releasing the support beam from the extension beam at its end. A vertical support member includes a lower upright and an upper upright. One side of the lower upright has a groove that matches the upper upright. The upper upright is slidably disposed within the groove. One side of the lower upright has a pressure plate for clamping or releasing the upper upright. The diagonal brace has an adjustable length. One end of the diagonal brace is connected to the end of the extension beam that is away from the support beam, and the other end of the diagonal brace is connected to the upper side of the lower upright.

[0007] Furthermore, the upper upright has a first locking tooth evenly arranged on the side opposite to the pressure plate, and the inside of the upright groove has a second locking tooth that matches the first locking tooth.

[0008] Furthermore, the support beam is provided with an arc-shaped slide rail inside, and the extension beam has an arc-shaped slide plate with the same curvature as the arc-shaped slide rail. The arc-shaped slide plate is slidably disposed inside the arc-shaped slide rail. The locking mechanism is a first bolt and nut mechanism disposed at the end of the arc-shaped slide rail. The arc-shaped slide plate is uniformly provided with through holes that match the first bolt and nut mechanism.

[0009] Furthermore, curved support plates are fixedly installed on both sides of the top of the curved slide, and a support plate is installed on the top of the curved slide plate, with the top of the support plate being flush with the top of the curved support plate.

[0010] Furthermore, the diagonal brace has a threaded tube, and both ends of the threaded tube are threaded to screws with opposite thread directions. A hinge seat is fixedly provided on one end of the screw that is away from the threaded tube. The hinge seat at one end of the diagonal brace is connected to the end of the extension beam that is away from the support beam, and the hinge seat at the other end of the diagonal brace is connected to one side of the upper end of the lower upright.

[0011] Furthermore, a connecting threaded seat is fixedly provided on one side of the screw tube, and an adjustment handle is internally threaded into the connecting threaded seat.

[0012] Furthermore, the two sides of the pressure plate are detachably and fixedly connected to the lower upright rod through a second bolt and nut mechanism.

[0013] The beneficial effects of this utility model are: (1) In this utility model, the lower end of the vertical support is fixedly set at the bottom of the roadway, the vertical support provides support for the arc support, so that the arc support abuts against the top of the roadway and provides support for the top of the roadway. The inclined support, the arc support and the vertical support form a triangular frame structure, which improves the strength of the end of the extension beam. (2) After the support beam and the extension beam are released, the extension beam can slide inside the support beam to adjust the length of the arc support and match the roadway of different widths. After the adjustment is completed, the support beam and the extension beam are locked. (3) The upper upright can slide up and down inside the vertical groove to adjust the height of the vertical support component and match the roadway of different heights. After adjustment, the upper upright is pressed and fixed inside the vertical groove of the lower upright by the pressure plate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the support and protection device for coal mine roadway excavation in this utility model.

[0015] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0016] Figure 3 for Figure 1 A magnified view of a section at point B.

[0017] Figure 4 This is a schematic diagram of the diagonal brace in this utility model. Detailed Implementation

[0018] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are not intended to limit the present invention or its application or use in any way. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0019] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] like Figures 1 to 4 As shown, a support and protection device for coal mine roadway excavation is disclosed, comprising: an arc-shaped support member 1, which includes an arc-shaped support beam 11, with connecting bases 17 fixedly installed at the bottom of both ends of the support beam 11, and extension beams 12 with the same curvature slidingly installed inside both ends of the support beam 11, and a locking mechanism for locking or releasing the support beam 11 with the extension beam 12; a vertical support member 2, which includes a lower vertical rod 21 and an upper vertical rod 22, with a vertical groove 23 on one side of the lower vertical rod 21 that matches the upper vertical rod 22, and the upper vertical rod 22 slidingly installed inside the vertical groove 23, and a pressure plate 25 on one side of the lower vertical rod 21 for pressing and fixing or releasing the upper vertical rod 22; and a diagonal brace 3, the length of which is adjustable, with one end of the diagonal brace 3 connected to the end of the extension beam 12 away from the support beam 11, and the other end of the diagonal brace 3 connected to the upper end of the lower vertical rod 21.

[0021] In the above embodiment, the lower end of the vertical support member 2 is fixedly set at the bottom of the roadway. The vertical support member 2 provides support for the arc-shaped support member 1, so that the arc-shaped support member 1 abuts against the top of the roadway, providing support for the top of the roadway. The diagonal brace member 3, the arc-shaped support member 1, and the vertical support member 2 form a triangular frame structure, which enhances the strength of the end of the extension beam 12. After the support beam 11 and the extension beam 12 are released, the extension beam 12 can slide inside the support beam 11 to adjust the length of the arc-shaped support member 1 and match roadways of different widths. After adjustment, the support beam 11 and the extension beam 12 are locked. The upper upright 22 can slide up and down inside the vertical groove 23 to adjust the height of the vertical support member 2 and match roadways of different heights. After adjustment, the upper upright 22 is pressed and fixed inside the vertical groove 23 of the lower upright 21 by the pressure plate 25.

[0022] In some embodiments, the upper end of the upper pole 22 is fixedly connected to the connecting base 17 by bolts.

[0023] In some embodiments, the upper upright 22 is provided with a first locking tooth 24 evenly on the side away from the pressure plate 25, and the inside of the vertical groove 23 is provided with a second locking tooth 26 that matches the first locking tooth 24. When the first locking tooth 24 and the second locking tooth 26 are separated, the upper upright 22 can move up and down inside the vertical groove 23 to adjust the height of the vertical support member 2. After the height adjustment is completed, the upper upright 22 is moved horizontally and moved slightly up and down to make the first locking tooth 24 and the second locking tooth 26 mesh together. Then, the pressure plate 25 presses and fixes the upper upright 22 in the inside of the vertical groove 23 to prevent the upper upright 22 and the lower upright 21 from slipping and causing the height of the vertical support member 2 to change.

[0024] In some embodiments, the support beam 11 is provided with an arc-shaped slide rail 13 inside, and the extension beam 12 has an arc-shaped slide plate 14 with the same curvature as the arc-shaped slide rail 13. The arc-shaped slide plate 14 is slidably disposed inside the arc-shaped slide rail 13. The locking mechanism is a first bolt and nut mechanism disposed at the end of the arc-shaped slide rail 13. The arc-shaped slide plate 14 has through holes that match the first bolt and nut mechanism evenly starting on it. The first bolt and nut mechanism locks the arc-shaped slide rail 13 and the arc-shaped slide plate 14. By connecting different through holes on the arc-shaped slide plate 14 to the first bolt and nut mechanism, the length of the arc-shaped support member 1 can be adjusted to match tunnels of different widths.

[0025] In some embodiments, arc-shaped support plates 15 are fixedly provided on both sides of the top of the arc-shaped slide 13, and a support plate 16 is provided on the top of the arc-shaped slide 14. The top of the support plate 16 is flush with the top of the arc-shaped support plate 15. The arc-shaped support plate 15 and the support plate 16 are used to increase the contact area between the arc-shaped support member 1 and the top of the tunnel.

[0026] In some embodiments, such as Figure 4 As shown, the diagonal brace 3 has a threaded tube 32, and both ends of the threaded tube 32 are threadedly connected to screws 31 with opposite thread directions. A hinge seat 35 is fixedly installed on the end of the screw 31 away from the threaded tube 32. The hinge seat 35 at one end of the diagonal brace 3 is connected to the end of the extension beam 12 away from the support beam 11 through a bolt and nut mechanism. The hinge seat 35 at the other end of the diagonal brace 3 is connected to the upper side of the lower upright 21 through a bolt and nut mechanism. Rotating the threaded tube 32 can adjust the length of the diagonal brace 3, thereby matching the distance between the end of the extension beam 12 and the upper end of the lower upright 21 under different width and height usage scenarios.

[0027] In some embodiments, a connecting threaded seat 33 is fixedly provided on one side of the screw tube 32, and an adjusting handle 34 is connected to the internal thread of the connecting threaded seat 33. The screw tube 32 can be easily rotated by adjusting the adjusting handle 34 to adjust the length of the diagonal brace 3. After adjustment, the adjusting handle 34 can be removed to reduce safety hazards.

[0028] In some embodiments, the two sides of the pressure plate 25 are detachably and fixedly connected to the lower upright 21 by a second bolt and nut mechanism; the pressure plate 25 is subjected to axial force by the second bolt and nut mechanism to press and fix the upper upright 22 inside the lower upright 21.

[0029] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0030] The embodiments described above only illustrate some implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A support and protection device for coal mine roadway excavation, characterized in that, include: An arc-shaped support component includes an arc-shaped support beam, with connecting bases fixedly installed at the bottom of both ends of the support beam, and extension beams with the same curvature slidingly installed inside both ends of the support beam, and a locking mechanism for locking or releasing the support beam from the extension beam at its end. A vertical support member includes a lower upright and an upper upright. The lower upright has a groove on one side that matches the upper upright. The upper upright is slidably disposed inside the groove. A pressure plate is provided on one side of the lower upright for pressing and fixing or releasing the upper upright. as well as, The diagonal brace has an adjustable length. One end of the diagonal brace is connected to the end of the extension beam that is away from the support beam, and the other end of the diagonal brace is connected to the upper side of the lower upright.

2. The support and protection device for coal mine roadway excavation according to claim 1, characterized in that: The upper upright has a first locking tooth evenly arranged on the side opposite to the pressure plate, and the inside of the vertical groove has a second locking tooth that matches the first locking tooth.

3. The support and protection device for coal mine roadway excavation according to claim 1, characterized in that: The support beam has an arc-shaped slide rail inside, and the extension beam has an arc-shaped slide plate with the same curvature as the arc-shaped slide rail. The arc-shaped slide plate is slidably disposed inside the arc-shaped slide rail. The locking mechanism is a first bolt and nut mechanism disposed at the end of the arc-shaped slide rail. The arc-shaped slide plate has through holes that match the first bolt and nut mechanism evenly starting from the beginning.

4. The support and protection device for coal mine roadway excavation according to claim 3, characterized in that: Arc-shaped support plates are fixedly installed on both sides of the top of the arc-shaped slide, and a support plate is installed on the top of the arc-shaped slide plate. The top of the support plate is flush with the top of the arc-shaped support plate.

5. The support and protection device for coal mine roadway excavation according to claim 1, characterized in that: The diagonal brace has a spiral tube, and both ends of the spiral tube are threaded to screws with opposite thread directions. A hinge seat is fixedly provided on one end of the screw that is away from the spiral tube. The hinge seat at one end of the diagonal brace is connected to the end of the extension beam that is away from the support beam, and the hinge seat at the other end of the diagonal brace is connected to one side of the upper end of the lower upright.

6. The support and protection device for coal mine roadway excavation according to claim 5, characterized in that: A connecting threaded seat is fixedly provided on one side of the spiral tube, and an adjustment handle is connected to the internal thread of the connecting threaded seat.

7. The support and protection device for coal mine roadway excavation according to claim 1, characterized in that: The two sides of the pressure plate are detachably and fixedly connected to the lower upright through a second bolt and nut mechanism.

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