CN211038678U - Roadway side protecting plate for coal mine excavation - Google Patents
Roadway side protecting plate for coal mine excavation Download PDFInfo
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- CN211038678U CN211038678U CN201922285139.6U CN201922285139U CN211038678U CN 211038678 U CN211038678 U CN 211038678U CN 201922285139 U CN201922285139 U CN 201922285139U CN 211038678 U CN211038678 U CN 211038678U
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- top plate
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Abstract
The utility model relates to a tunnel side protection plate for coal mine excavation belongs to mine protection technical field, including curb plate and roof, the curb plate has two sets ofly, and every group curb plate symmetry to set up at roof bottom both ends, the synthetic arch is enclosed with the roof to the curb plate, the roof includes roof and roof down, it is provided with the roof strengthening rib to go up between roof and the roof down, the roof both sides are provided with the locating lever that inserts the tunnel wall. This technical scheme can insert the locating lever of tunnel wall through the roof both sides and fix to make the roof independently support the tunnel roof, alleviate the pressure of curb plate, improve the homogeneity of tunnel side guard atress, increased life, the effectual security that improves the tunnel construction.
Description
Technical Field
The utility model relates to a tunnel side protection board for coal mine excavation belongs to mine protection technical field.
Background
The mining in the coal mine field mainly takes underground mining as a main part, a large number of roadways need to be excavated underground, and supporting structures need to be arranged after the roadways are excavated so as to ensure the safety of the roadway structures in the mining process. The basic purpose of supporting the roadway is to alleviate and reduce the movement of surrounding rocks, so that the section of the roadway is not excessively reduced, and meanwhile, the scattered and damaged surrounding rocks are prevented from falling off.
In order to enable the roadway supporting structure to play a corresponding role in the process of adjusting and controlling the deformation of the surrounding rocks, the side protection plate is installed before the surrounding rocks are loosened and damaged so as to play a bearing role together with the surrounding rocks under the condition that the surrounding rocks still keep self-bearing force, but not to bear the weight of the falling rock blocks by using the supporting structure under the condition that the surrounding rocks are loosened and damaged and the self-bearing force is almost completely lost. That is, the toe guard and the surrounding rock should be commonly supported under the conditions of mutual constraint and mutual dependence.
Traditional tunnel side protection board includes curb plate and roof, and wherein the roof adopts arc protruding structure mostly, as shown in figure 1, wherein this top side protection board 1 adopts double-deck arc structure, has improved the support effect to the tunnel roof. But the important curb plate burden that relies on completely of current tunnel side guard board main part, the curb plate still can receive the pressure of tunnel lateral wall simultaneously, therefore the curb plate damages easily, causes the personal and property danger. Therefore, the design of the roadway side protection plate with uniform stress has important significance.
Disclosure of Invention
For solving the problem that exists among the prior art, the embodiment of the utility model provides a tunnel side guard for coal mine excavation is provided, through set up the locating lever that inserts the tunnel wall on the roof to make the roof have the ability of independent support tunnel roof, alleviate the pressure of curb plate, improved tunnel side guard's safety in utilization. The specific technical scheme is as follows:
the roadway side protecting plate for coal mine excavation comprises side plates and a top plate, wherein the side plates are symmetrically arranged at two ends of the bottom of the top plate, the side plates and the top plate enclose an arch, the top plate comprises an upper top plate and a lower top plate, a top plate reinforcing rib is arranged between the upper top plate and the lower top plate, and positioning rods inserted into roadway walls are arranged on two sides of the top plate.
As an improvement of the technical scheme, the end part of the upper top plate is provided with a positioning rod connecting end, the positioning rod is fixedly arranged on the positioning rod connecting end, and the end part of the lower top plate is provided with an end supporting rod for supporting the positioning rod connecting end.
As an improvement of the technical scheme, the upper top plate and the lower top plate are arc-shaped, and the arc-shaped bulges point to one side of the top wall of the roadway.
As an improvement of the technical scheme, a buffer baffle is arranged on one side, close to the top wall of the roadway, of the upper top plate.
As an improvement of the technical scheme, a top plate support is arranged below the top plate, the side plate is supported below the top plate support, and a tensioning mechanism is arranged between the top plate support and the upper top plate.
As an improvement of the technical scheme, a plurality of groups of top plates are arranged at intervals, and top plate guide rods are fixedly connected between the top plates of each group.
As an improvement of the technical scheme, the top plate support is provided with a supporting seat for supporting the lower top plate, a lower top plate connecting end is arranged at the position, close to the supporting seat, of the bottom of the lower top plate, and a rotating shaft is arranged between the lower top plate connecting end and the supporting seat.
As an improvement of the above technical solution, the side plate includes an outer side plate and an inner side plate, an angle θ is formed between the outer side plate and the inner side plate, and the angle range of the angle θ is: theta is more than 0 and less than or equal to 45 degrees.
As an improvement of the technical scheme, the outer side plate and the inner side plate are fixedly connected through transverse rods, and fixing rods are arranged between the transverse rods.
As an improvement of the technical scheme, an oblique reinforcing rib is arranged between the fixing rods.
Above-mentioned scheme can insert the locating lever of tunnel wall through the roof both sides and fix to make the roof independently support the tunnel roof, alleviate the pressure of curb plate, improve the homogeneity of tunnel side guard atress, improve life, the security of tunnel construction gets the improvement.
Drawings
FIG. 1 is a schematic view of a top side protection plate in the background art of the present invention;
fig. 2 is a schematic structural view of a roadway side guard for coal mining in an embodiment of the present invention;
fig. 3 is a schematic perspective view of a roadway side guard for coal mining according to an embodiment of the present invention;
in the figure: 1-top side protection plate, 10-side plate, 11-outer side plate, 12-inner side plate, 13-transverse rod, 14-fixing rod, 15-oblique reinforcing rib, 20-top plate, 21-top plate bracket, 22-supporting seat, 23-lower top plate, 24-upper top plate, 25-buffer baffle, 26-reinforcing rib, 27-positioning rod connecting end, 28-positioning rod, 29-supporting rod, 30-top plate guiding rod, 31-tensioning mechanism, 231-lower top plate connecting end and 232-rotating shaft.
Detailed Description
The following embodiments of the present invention are provided as examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the disclosure of the present specification.
It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "inner" and "outer" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms may be changed or adjusted without substantial technical changes.
In the description of the embodiments that follow, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and the like are to be construed broadly and include, for example, "connected" that may be either fixedly connected or detachably connected, or integrally formed; may be mechanically coupled, may be indirectly coupled through intervening media, may communicate between elements, or may be in an interactive relationship between elements, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 2 and 3, the embodiment of the utility model provides a tunnel side protection plate for coal mine excavation, including curb plate 10 and roof 20, curb plate 10 has two sets ofly and every group curb plate 10 symmetry sets up at roof 20 bottom both ends, and curb plate 10 encloses with roof 20 and closes into the arch, and roof 20 includes roof 24 and lower roof 23, is provided with roof strengthening rib 26 between roof 24 and the lower roof 23 on going up, and roof 20 both sides are provided with the locating lever 28 that inserts the tunnel wall.
The end of the upper top plate 24 is provided with a positioning rod connecting end 27, the positioning rod 28 is fixedly arranged on the positioning rod connecting end 27, and the end of the lower top plate 23 is provided with an end supporting rod 29 for supporting the positioning rod connecting end 27. This preferred scheme provides a concrete locating lever 28 mode of setting, and the bracing piece 29 is the same with the effect of strengthening rib 26, all can play the effect of connecting fixed upper top plate 24 and lower top plate 23.
Go up roof 24 and roof 23 and be the arc, and the protruding one side of pointing the tunnel roof of arc, go up the roof 24 and go up one side that is close to the tunnel roof and be provided with buffer stop 25. The last roof 24 and the roof 23 down of arc structure can be under the oppression deformation of tunnel lateral wall, the square directional tunnel roof direction of deformation to improve the supporting effect to the tunnel roof. The buffer baffle 25 is used for dispersing the pressure of the roadway top wall on the upper top plate 24, so that the stress uniformity of the whole top plate 20 is improved.
Further, a top plate support 21 is provided below the top plate 20, the side plate 10 is supported below the top plate support 21, and a tension mechanism 31 is provided between the top plate support 21 and the upper top plate 24. The tensioning mechanism 31 may be a structure similar to a tension spring, so as to improve the stability of the upper top plate 24. The top plates 20 are arranged in a plurality of groups at intervals, and top plate guide rods 30 are fixedly connected between the top plates 20 of each group. The top plate guide rods 30 are used for connecting the top plates 20 of each group, so that the top plates 20 of the groups form a whole and share the pressure applied by the top wall of the roadway.
In the above scheme, the top plate support 21 is provided with the support seat 22 for supporting the lower top plate 23, the bottom of the lower top plate 23 is provided with a lower top plate connection end 231 at a position close to the support seat 22, and a rotation shaft 232 is arranged between the lower top plate connection end 231 and the support seat 22. In the preferred scheme, the supporting seat 22 is rotatably connected with the lower top plate 23 through the rotating shaft 232, and the side plate 10 and the top plate 20 can slightly rotate relatively when meeting higher pressure through the rotary connection, so that partial pressure is buffered, and the service life of the roadway side protection plate is prolonged.
The side plate 10 comprises an outer side plate 11 and an inner side plate 12, wherein an angle theta is formed between the outer side plate 11 and the inner side plate 12, and the angle range of the angle theta is as follows: theta is more than 0 and less than or equal to 45 degrees. This preferred embodiment provides a side panel 10 mounting structure with included angles that effectively disperse the pressure applied by the roadway side walls to the outer panel 11. The outer side plate 11 and the inner side plate 12 are fixedly connected through transverse rods 13, fixing rods 14 are arranged between the transverse rods 13, and oblique reinforcing ribs 15 are arranged between the fixing rods 14. The transverse rods 13, the fixing rods 14 and the oblique reinforcing ribs 15 can ensure that the outer side plate 11 and the inner side plate 12 are firmly fixed, and the reliability of the overall structure of the roadway side protection plate is improved.
Although the present invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the embodiments of the present invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The roadway side protecting plate for coal mine excavation is characterized by comprising two groups of side plates and a top plate, wherein each group of side plates are symmetrically arranged at two ends of the bottom of the top plate, the side plates and the top plate enclose an arch, the top plate comprises an upper top plate and a lower top plate, a top plate reinforcing rib is arranged between the upper top plate and the lower top plate, and positioning rods inserted into roadway walls are arranged on two sides of the top plate.
2. The roadway side guard for coal mine excavation of claim 1, wherein a positioning rod connecting end is arranged at the end of the upper top plate, the positioning rod is fixedly arranged on the positioning rod connecting end, and an end supporting rod for supporting the positioning rod connecting end is arranged at the end of the lower top plate.
3. The roadway wall guard for coal mine excavation of claim 1, wherein the upper roof plate and the lower roof plate are arc-shaped, and the arc-shaped protrusions are directed to one side of the roadway roof wall.
4. The roadway side guard for coal mine excavation according to claim 3, wherein a buffer baffle is arranged on one side of the upper top plate close to the roadway top wall.
5. The roadway wall protecting plate for coal mine excavation of claim 1, wherein a top plate support is arranged below the top plate, the side plate is supported below the top plate support, and a tensioning mechanism is arranged between the top plate support and the upper top plate.
6. The roadway side guard for coal mine excavation of claim 5, wherein a plurality of groups of the top plates are arranged at intervals, and top plate guide rods are fixedly connected between the top plates of each group.
7. The roadway side wall protecting plate for coal mine excavation according to claim 5, wherein a supporting seat for supporting the lower top plate is arranged on the top plate support, a lower top plate connecting end is arranged at the bottom of the lower top plate close to the supporting seat, and a rotating shaft is arranged between the lower top plate connecting end and the supporting seat.
8. A roadway slope sheet for coal mine excavation as claimed in claim 1, wherein the side panels comprise an outer panel and an inner panel, the outer panel and the inner panel being at an angle θ, the angle θ being in the range of: theta is more than 0 and less than or equal to 45 degrees.
9. The roadway wall guard for coal mine excavation of claim 8, wherein the outer side plate and the inner side plate are fixedly connected by transverse rods, and fixing rods are arranged between the transverse rods.
10. The roadway wall protecting plate for coal mine excavation of claim 9, wherein an oblique reinforcing rib is arranged between the fixing rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922285139.6U CN211038678U (en) | 2019-12-18 | 2019-12-18 | Roadway side protecting plate for coal mine excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922285139.6U CN211038678U (en) | 2019-12-18 | 2019-12-18 | Roadway side protecting plate for coal mine excavation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211038678U true CN211038678U (en) | 2020-07-17 |
Family
ID=71530384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922285139.6U Active CN211038678U (en) | 2019-12-18 | 2019-12-18 | Roadway side protecting plate for coal mine excavation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211038678U (en) |
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2019
- 2019-12-18 CN CN201922285139.6U patent/CN211038678U/en active Active
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