Inclined coal seam hydraulic support

Abstract

The utility model discloses an inclined coal seam hydraulic support which comprises a base and a top beam, a plurality of supporting oil cylinders are arranged between the base and the top beam, side plates are connected to the four side walls of the top beam in a rotating mode, the width of each side plate is not smaller than the distance between the base and the top beam, and the side plates comprise the first side plate and the second side plate. A sliding groove is formed in one side wall of the first side plate, a second side plate is slidably connected into the sliding groove, a second oil cylinder is fixedly connected between the bottom wall of the sliding groove and the second side plate, and an inclined face is formed in the end face, away from the first side plate, of the second side plate. Compared with the prior art, the inclined coal seam hydraulic support has the advantages that the situation that the hydraulic support slides on an inclined coal seam can be reduced, meanwhile, when the coal seam collapses, the liquid support can be deformed into a hollow rectangular body, a space for workers to take refuge is formed, the workers in a coal seam channel can be protected conveniently, and the working efficiency is improved. Casualties caused by coal seam channel collapse are avoided as far as possible.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic supports, and in particular relates to a hydraulic support for inclined coal seams. Background Art

[0002] The inclination of a coal seam represents the angle between the total inclination of a coal seam or the interface of a coal seam / rock layer or a line of the inclination and the horizontal plane. Affected by geology, coal seams with large inclinations are easily broken during mining, and the resulting coal fragments are smaller in size. The coal on the upper part of the coal seam that has undergone a certain degree of spontaneous combustion is easy to slide down, causing the internal structure of the coal seam to deform. When the internal structure of the coal seam is damaged or deformed, the stability of the coal seam will be affected, thus causing collapse.

[0003] If a coal seam located at a high altitude collapses, the collapsed coal seam will slide along the inclined direction, and the coal will enter the coal seam channel, causing the coal seam channel to be blocked. In more serious cases, the entire coal seam channel may even be submerged, and the workers located in the coal seam channel cannot be well protected.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The purpose of the utility model is to provide an inclined coal seam hydraulic support, which can solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the utility model is as follows:

[0007] A hydraulic support for an inclined coal seam comprises a base and a top beam, a plurality of supporting oil cylinders are arranged between the base and the top beam, four side walls of the top beam are rotatably connected with side plates, and the width of the side plates is not less than the distance between the base and the top beam.

[0008] In one or more embodiments of the present invention, the side panel comprises a first side panel, a sliding groove is provided on a side wall of the first side panel, and a second side panel is slidably connected in the sliding groove.

[0009] In one or more embodiments of the present invention, a second oil cylinder is fixedly connected between the bottom wall of the slide groove and the second side plate.

[0010] In one or more embodiments of the present invention, an end surface of the second side plate away from the first side plate is provided with an inclined surface.

[0011] In one or more embodiments of the present invention, a first oil cylinder is rotatably connected to an end surface of the side plate close to the top beam, and an end of the first oil cylinder away from the side plate is rotatably connected to the top beam.

[0012] In one or more embodiments of the present invention, a cavity is defined inside the base, and the cavity is filled with liquid oxygen.

[0013] In one or more embodiments of the present invention, a storage groove is provided on the base, and a sealing door matching the storage groove is rotatably connected to the base.

[0014] In one or more embodiments of the present invention, a mask is placed inside the storage groove, one end of the mask is fixedly connected to a connecting tube, and the other end of the connecting tube is communicated with the cavity.

[0015] In one or more embodiments of the present invention, a valve is fixedly connected to the connecting pipe.

[0016] In one or more embodiments of the present invention, the distance between the base and the top beam is a first distance, the width of the first side panel is not less than half of the first distance, and the width of the second side panel is not less than half of the first distance.

[0017] Compared with the prior art, the utility model of an inclined coal seam hydraulic support can reduce the sliding of the hydraulic support on the inclined coal seam. At the same time, when the coal seam collapses, the liquid support can be deformed into a hollow rectangle to form a space for workers to take refuge, thereby facilitating the protection of workers in the coal seam passage and avoiding casualties caused by the collapse of the coal seam passage as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The structure of a hydraulic support for inclined coal seams in one embodiment of the utility model is schematically shown. Figure 1 ;

[0020] Figure 2 The structure of a hydraulic support for inclined coal seams in one embodiment of the utility model is schematically shown. Figure 2 ;

[0021] Figure 3This is a first state diagram of an inclined coal seam hydraulic support in one embodiment of the utility model;

[0022] Figure 4 It is a three-dimensional cross-sectional view of a first state of an inclined coal seam hydraulic support in one embodiment of the utility model;

[0023] Figure 5 It is a cross-sectional view of a first state of an inclined coal seam hydraulic support in one embodiment of the utility model;

[0024] Figure 6 for Figure 5 Schematic diagram of the structure at A in the middle;

[0025] Figure 7 It is a schematic structural diagram of a side plate in one embodiment of the utility model.

[0026] Description of main reference numerals:

[0027] 1. Base; 11. Cavity; 12. Storage slot; 13. Sealing door; 2. Support cylinder; 3. Top beam; 4. Side panel; 41. First side panel; 411. Slide slot; 42. Second side panel; 421. Inclined surface; 5. First cylinder; 6. Second cylinder; 7. Mask; 8. Connecting pipe; 9. Valve. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0029] like Figure 1 to Figure 7 As shown, an inclined coal seam hydraulic support in one embodiment of the utility model comprises a base 1 and a top beam 3, wherein the base 1 is placed on the bottom wall of the coal seam passage, and the top beam 3 is in contact with the upper wall of the coal seam passage. A plurality of supporting oil cylinders 2 are arranged between the base 1 and the top beam 3, and the spacing between the base 1 and the top beam 3 can be changed by the supporting oil cylinders 2, so that the base 1 and the top beam 3 can support the bottom wall of the coal seam passage and the upper wall of the coal seam, thereby supporting the upper wall of the coal seam passage.

[0030] like Figure 1 to Figure 5As shown, the four side walls of the top beam 3 are rotatably connected with side plates 4, and the top beam 3 and the side plates 4 are both used to support the upper wall of the coal seam passage, and the width of the side plates 4 is not less than the distance between the base 1 and the top beam 3. A first oil cylinder 5 is rotatably connected to a side wall of the side plate 4 close to the top beam 3, and the other end of the first oil cylinder 5 is rotatably connected to a side wall of the top beam 3. The first oil cylinder 5 can change the inclination angle between the side plate 4 and the top beam 3, so that the inclined coal seam hydraulic support can adapt to coal seams of different shapes and realize the support of coal seams of different shapes.

[0031] The distance between the base 1 and the top beam 3 is a first distance, the width of the side plate 4 is greater than or equal to the first distance, and the first oil cylinder 5 can make one end surface of the side plate 4 close to the top beam 3. At this time, the inclined coal seam hydraulic support is an internal hollow rectangular body, and the specific internal space can accommodate multiple people. When the inclined coal seam channel collapses, the inclined coal seam hydraulic support is deformed into a hollow rectangular body, and the staff can enter, so as to avoid casualties caused by the collapse of the inclined coal seam as much as possible.

[0032] like Figure 1 to Figure 5 As shown, the side plate 4 includes a first side plate 41, a slide groove 411 is provided on one side wall of the first side plate 41, and a second side plate 42 is slidably connected in the slide groove 411. The first side plate 41 and the second side plate 42 are slidably connected, and the width of the side plate 4 can be changed, and the area of ​​the side plate 4 becomes larger, thereby increasing the support area of ​​a single inclined coal seam hydraulic support. The use of hydraulic supports in the inclined coal seam channel is reduced, and the time wasted in installing the hydraulic support is reduced.

[0033] like Figure 5 , Figure 7 As shown, the bottom wall of the first side plate 41 is fixedly connected with the second oil cylinder 6, and the two ends of the second oil cylinder 6 are respectively fixedly connected with the bottom wall of the first side plate 41 and the second side plate 42, and the second side plate 42 can be pushed out of the chute 411 by the second oil cylinder 6, thereby increasing the area of ​​the first side plate 41. The second side plate 42 is provided with an inclined surface 421 at one end away from the first side plate 41, and the inclined surface 421 can facilitate the insertion of the second side plate 42 into the coal seam. When two or more inclined surfaces 421 are inserted into the coal seam, the hydraulic support can be fixed, and the hydraulic support can be minimized from sliding easily when working on the inclined coal seam.

[0034] like Figure 3 to Figure 5 As shown, the width of the first side plate 41 is not less than half of the first spacing, and the width of the second side plate 42 is not less than half of the first spacing. That is, the widths of the first side plate 41 and the second side plate 42 are equal, or the width of the first side plate 41 is greater than the width of the second side plate 42. The total width of the second side plate 42 and the first side plate 41 is approximately equal to the first spacing. In this way, when the side plate 4 rotates downward, the second side plate 42 is pushed outward by the second oil cylinder 6 and contacts the bottom wall of the coal seam.

[0035] like Figure 3-4 As shown, when the hydraulic support is deformed into a rectangular body, the second side plate 42 is pushed outward by the second oil cylinder 6 so that the inclined surface 421 is inserted into the bottom wall of the coal seam, thereby avoiding the movement and sliding of the hydraulic support during the coal sliding process as much as possible and ensuring the stability of the hydraulic support as much as possible.

[0036] like Figure 4-5 As shown, a cavity 11 is provided at the bottom of the base 1, and the cavity 11 is filled with liquid oxygen. When the coal seam collapses, the hydraulic support is deformed into a rectangular body. If a person stays in the hydraulic support for a long time, the air in the collapsed coal seam may not circulate, resulting in hypoxia for the person in the hydraulic support. By filling the cavity 11 with liquid oxygen, oxygen can be supplemented to the person in the hydraulic support, greatly improving the survival probability of the trapped person.

[0037] Specifically, Figure 6 As shown, a receiving groove 12 is provided on the base 1, and a sealing door 13 matching the receiving groove 12 is rotatably connected to the base 1. The sealing door 13 can block the receiving groove 12 to prevent coal from entering the receiving groove 12 as much as possible. A mask 7 is placed inside the receiving groove 12, one end of the mask 7 is connected to a connecting pipe 8, and the other end of the connecting pipe 8 is connected to the cavity 11. That is, the oxygen in the cavity 11 can be inhaled through the mask 7.

[0038] like Figure 6 As shown, a valve 9 is fixedly connected to the connecting pipe 8, and the amount of oxygen output by the mask 7 can be changed through the valve 9. When not in use, the valve 9 is closed, and when in use, the valve 9 is opened.

[0039] like Figure 1-2 As shown, in normal use, the base 1 and the top beam 3 are opened by the supporting oil cylinder 2, the top beam 3 supports the top wall of the coal seam channel, and the side plate 4 is opened by the first oil cylinder 5, and the side plate 4 can also support the top wall of the coal seam channel. If the width of the side plate 4 is not enough, the second oil cylinder 6 can be opened, and the second oil cylinder 6 pushes out the second side plate 42, increasing the area of ​​the first side plate 41, so that the side plate 4 can have a larger support area.

[0040] When the coal seam collapses, the second oil cylinder 6 will first pull the second side plate 42 back into the slide 411. At the same time, the first oil cylinder 5 will pull the side plate 4 back to one end of the top beam 3. In this way, the area occupied by the rotation of the side plate 4 can be reduced, and multiple hydraulic supports can be deformed at the same time. When the side plate 4 is perpendicular to the horizontal plane or slightly perpendicular to the horizontal plane, the second oil cylinder 6 starts to push the second side plate 42 out, and one end of the inclined surface 421 is inserted into the ground to fix the hydraulic support and avoid the displacement of the hydraulic support caused by the impact force generated by the coal seam collapse as much as possible. The personnel in the rectangular body can take out the mask 7 and inhale the oxygen in the cavity 11 through the mask 7 to avoid hypoxia during the evacuation process.

[0041] Preferably, a controller can also be provided on the hydraulic support, and the controller can be used to control the hydraulic support to be deformed into a rectangular body by one button. When the coal seam collapses, personnel can enter the hydraulic support and press the deformation button to complete the refuge.

[0042] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hydraulic support for inclined coal seams, comprising a base and a top beam, wherein a plurality of supporting cylinders are arranged between the base and the top beam, characterized in that: The four side walls of the top beam are rotatably connected with side plates, and the width of the side plates is not less than the distance between the base and the top beam.

2. The inclined coal seam hydraulic support according to claim 1, characterized in that: The side plate comprises a first side plate, a side wall of the first side plate is provided with a slide groove, and the slide groove is slidably connected with a second side plate.

3. The inclined coal seam hydraulic support according to claim 2, characterized in that: A second oil cylinder is fixedly connected between the bottom wall of the slide groove and the second side plate.

4. The inclined coal seam hydraulic support according to claim 2, characterized in that: An end surface of the second side plate away from the first side plate is provided with an inclined surface.

5. The inclined coal seam hydraulic support according to claim 1, characterized in that: A first oil cylinder is rotatably connected to an end surface of the side plate close to the top beam, and an end of the first oil cylinder away from the side plate is rotatably connected to the top beam.

6. The inclined coal seam hydraulic support according to claim 1, characterized in that: A cavity is provided inside the base, and the cavity is filled with liquid oxygen.

7. The inclined coal seam hydraulic support according to claim 6, characterized in that: A storage groove is provided on the base, and a sealing door matching the storage groove is rotatably connected to the base.

8. The inclined coal seam hydraulic support according to claim 7, characterized in that: A mask is placed inside the storage groove, one end of the mask is fixedly connected to a connecting pipe, and the other end of the connecting pipe is communicated with the cavity.

9. The inclined coal seam hydraulic support according to claim 8, characterized in that: The connecting pipe is fixedly connected with a valve.

10. The inclined coal seam hydraulic support according to claim 2, characterized in that: The distance between the base and the top beam is a first distance, the width of the first side plate is not less than half of the first distance, and the width of the second side plate is not less than half of the first distance.

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