阅读说明：本技术 一种具有边缘密封的矿用井下密闭门 (Mining underground airtight door with edge sealing function ) 是由 韦林生 于 2021-09-25 设计创作，主要内容包括：本发明公开了一种具有边缘密封的矿用井下密闭门,涉及矿井门领域,包括主外框体,所述主外框体的两侧边对称焊接有固定侧环,所述固定侧环的侧边均匀开设有固定通孔,所述主外框体的一侧边开设有密封套槽,所述密封套槽的内侧边卡接有密封外环,所述密封外环的内侧边固定焊接有主密封板,所述主密封板的两侧边对称设置有转动圆盘,所述主外框体的侧边开设有套接内槽,所述套接内槽的内侧边开设有合页套槽,所述合页套槽的内侧边竖直向焊接有固定插杆。本发明装置设计一体化结构简单操作简便,在采用了扩张式的卡接结构使得卡接更加的稳定让其更加的安全,同时在转动的操作方式使得开启或关闭更加的快速高效。(The invention discloses a mining underground airtight door with edge sealing, which relates to the field of mine doors and comprises a main outer frame body, wherein fixed side rings are symmetrically welded on two side edges of the main outer frame body, fixing through holes are uniformly formed in the side edges of the fixed side rings, a sealing sleeve groove is formed in one side edge of the main outer frame body, a sealing outer ring is clamped and connected to the inner side edge of the sealing sleeve groove, a main sealing plate is fixedly welded to the inner side edge of the sealing outer ring, rotating discs are symmetrically arranged on the two side edges of the main sealing plate, a sleeving inner groove is formed in the side edge of the main outer frame body, a hinge sleeve groove is formed in the inner side edge of the sleeving inner groove, and a fixing inserting rod is vertically welded on the inner side edge of the hinge sleeve groove. The device disclosed by the invention is simple in design and integrated structure and easy and convenient to operate, the expansion type clamping structure is adopted, the clamping is more stable and safer, and meanwhile, the opening or closing is more rapid and efficient in a rotating operation mode.)

1. The mining underground closed door with the edge seal comprises a main outer frame body (1) and is characterized in that two side edges of the main outer frame body (1) are symmetrically welded with fixed side rings (2), the side edges of the fixed side rings (2) are uniformly provided with fixing through holes (3), one side edge of the main outer frame body (1) is provided with a seal sleeve groove (4), the inner side edge of the seal sleeve groove (4) is connected with a seal outer ring (5) in a clamping manner, the inner side edge of the seal outer ring (5) is fixedly welded with a main sealing plate (6), two side edges of the main sealing plate (6) are symmetrically provided with rotating discs (7), the side edge of the main outer frame body (1) is provided with a sleeved inner groove (8), the inner side edge of the sleeved inner groove (8) is provided with a hinge sleeve groove (9), and the inner side edge of the hinge sleeve groove (9) is vertically welded with a fixed inserted rod (10), the inner side edge of the sleeved inner groove (8) is uniformly provided with a limiting channel (11), the inner side edge of the limiting channel (11) is welded with a top-connection inclined block (12), the inner side edge of the sealing sleeve groove (4) is provided with a matching groove (13), the inner side edge of the sealing sleeve groove (4) is butted with a sealing rubber ring (14), the inner side of the matching groove (13) is fixedly clamped with an inner rubber ring (15), the outer side edge of the main sealing plate (6) is uniformly spliced with a splicing plate (16), one side edge of the sealing outer ring (5) is welded with a splicing ring (17), the side edge of the splicing ring (17) is fixedly sleeved with a matching rubber ring (18), the two side edges of the main sealing plate (6) are vertically spliced with splicing connecting rods (19), the outer side edge of the main sealing plate (6) is vertically welded with an L-shaped connecting rod (20), and one end of the L-shaped connecting rod (20) far away from the main sealing plate (6) is provided with a slotted hole (21), an inner movable groove (22) is formed in the inner side edge of the main sealing plate (6), an inner rotating disc (23) is arranged on the inner side edge of the inner movable groove (22), an extending through groove (24) is uniformly formed in the outer side edge of the main sealing plate (6), a fixing rod (25) is horizontally welded to the inner side edge of the extending through groove (24), a socket groove channel (26) is formed in the side edge of the plug-in plate (16), arc-shaped groove channels (27) are symmetrically and uniformly formed in the two side edges of the inner rotating disc (23), a first plug-in connecting rod (28) is horizontally plugged in the inner side edge of each arc-shaped groove channel (27), limiting rings (29) are symmetrically welded to the two side edges of the inner rotating disc (23), a middle sleeve hole (30) is horizontally formed in the center position of the inner rotating disc (23), an inclined block (31) is welded to one side edge of the plug-in a matched mode, and a side sleeve groove (32) is formed in the outer side edge of the inner rotating disc (23), well multilateral hole (33) have been seted up to the inboard edge level of well trepanning (30), interlude is seted up to the both sides limit symmetry of main seal plate (6) to hole (34), spacing annular (35) have been seted up to the inboard edge symmetry of interior activity groove (22), the fixed welding in the outside limit of grafting connecting rod (19) has well multilateral pole (36).

2. The mining underground closed door with the edge seal is characterized in that the number of the fixed side rings (2) is two, the two fixed side rings (2) are arranged in parallel, the two fixed side rings (2) are fixedly and symmetrically arranged at the edge positions of two sides of the main outer frame body (1), the sealing sleeve groove (4) is arranged at the side position of one end of the sleeving inner groove (8), and the inner side edge of the sealing sleeve groove (4) and the inner part of the sleeving inner groove (8) are communicated with each other.

3. The mining underground airtight door with the edge seal is characterized in that the seal outer ring (5) is fixedly welded at a position close to one end on the outer side of the main seal plate (6), the main seal plate (6) is clamped at a position on the inner side of the sleeved inner groove (8), the number of the rotating discs (7) is two, and the central positions of one side edges of the two rotating discs (7) are fixedly welded with one end position of the plug connecting rod (19).

4. The mining underground airtight door with the edge seal is characterized in that the inner sleeving groove (8) is arranged at the center of the side edge of the main outer frame body (1) in a penetrating mode, the hinge sleeve groove (9) is horizontally arranged at the position of one side edge, close to the seal sleeve groove (4), of the inner side of the inner sleeving groove (8), the inner part of the hinge sleeve groove (9) is communicated with the inner part of the seal sleeve groove (4), and the fixed inserting rod (10) is vertically inserted into the position of the inner side edge of the sleeving groove hole (21) in a penetrating mode.

5. The mining underground airtight door with the edge seal function according to claim 1, wherein the number of the limiting channels (11) is multiple, the limiting channels (11) are annularly arranged at the inner side edge position of the sleeving inner groove (8) at equal intervals, the inclined side edges of the abutting-connection inclined blocks (12) are respectively connected at the inclined side edge position of the matching inclined block (31) in a one-to-one correspondence mode, the matching groove (13) is annularly formed in the side edge position of the sealing sleeving groove (4), and the sealing rubber ring (14) and the inner rubber ring (15) are made of soft rubber materials.

6. The mining underground airtight door with the edge seal function according to claim 1, wherein the number of the plug boards (16) is consistent with that of the limit channels (11) and the plug boards are respectively arranged in a one-to-one corresponding manner, one end of each plug board (16) is inserted into the inner side position of the corresponding extending through groove (24) in a penetrating manner and is inserted into the inner side position of the corresponding side sleeve groove (32), the insertion ring (17) is fixedly arranged at one side edge position of the seal outer ring (5) in an annular manner, and the insertion ring (17) is clamped and arranged at the inner side position of the corresponding matching groove (13).

7. The mining underground airtight door with the edge seal function according to claim 1, wherein the insertion connecting rod (19) horizontally penetrates through the penetrating hole (34) and extends to the inner side position of the middle sleeve hole (30), the L-shaped connecting rod (20) is horizontally inserted and connected to the inner side position of the hinge sleeve groove (9), the inner movable groove (22) is formed in the inner center position of the main sealing plate (6), the number of the extending through grooves (24) is multiple, the extending through grooves (24) are annularly formed in the outer side position of the main sealing plate (6), the interiors of the extending through grooves (24) are communicated with the interior of the inner movable groove (22), and the fixing rod (25) is horizontally inserted and connected to the inner side position of the sleeve groove (26).

8. The mining underground airtight door with the edge seal function according to claim 1, wherein the number of the arc-shaped channels (27) is multiple, the arc-shaped channels (27) are annularly arranged at the edge position close to the inward turning disc (23), the interiors of the arc-shaped channels (27) and the interior of the side sleeve groove (32) are kept in a through connection mode, the first plug-in connecting rods (28) are respectively and horizontally plugged at one end position of the plug board (16) in a one-to-one correspondence mode, and the limiting rings (29) are respectively and correspondingly clamped at the inner side edge position of the limiting ring groove (35).

9. The mining underground airtight door with the edge seal according to claim 1, characterized in that the middle polygonal hole (33) is horizontally arranged at the center of the middle sleeve hole (30), the inner part of the middle polygonal hole (33) is communicated with the inner part of the middle sleeve hole (30), the communication hole (34) is communicated with both ends of the middle sleeve hole (30), the middle polygonal rod (36) is horizontally and fixedly arranged at the center of the plug connecting rod (19), and the middle polygonal rod (36) is horizontally clamped and arranged at the inner side of the middle polygonal hole (33).

Technical Field

The invention relates to the technical field of mine doors, in particular to a mining underground airtight door with edge sealing.

Background

Mines mined in the subsurface. Inclined shafts, vertical shafts, adits and the like in underground mining of mines are also sometimes referred to as mines. Mine development has a great and profound influence on the overall situation of production construction of metal mines or coal mining mines, and the mine development not only relates to the construction quantity of the mine, initial investment and the speed of well construction, but also determines the production conditions and technical and economic indexes of the mine for a long time. Mine development is to dig a series of roadways from the ground to the underground and lead the roadways to a mining area. The main problems to be solved by mine development are as follows: the method comprises the steps of correctly dividing a well field, selecting a reasonable development mode, determining the production capacity of a mine, dividing mining levels according to elevations, selecting a proper ventilation mode, deploying mining areas, determining the mining sequence of the mining areas and the like. Mine development is generally divided into adit development, slant development and vertical development in the form of a wellbore.

Need install the airtight door to the import of present mine, traditional airtight door has just adopted the structure of simple framework and the sealing door body, because simple door body structure makes the leakproofness not good, and fixes the mode of having adopted the hasp and make and can not quick opening when meetting emergency, lets personnel's security receive certain influence.

Disclosure of Invention

The invention aims to provide a mining underground airtight door with edge sealing, and aims to solve the problems that the traditional airtight door provided in the background technology adopts a simple frame body and sealing door body structure, the sealing performance is poor due to the simple door body structure, and the safety of personnel is affected to a certain extent because the traditional airtight door is fixed in a locking manner and cannot be opened quickly in emergency.

In order to achieve the purpose, the invention provides the following technical scheme:

a mining underground closed door with edge sealing comprises a main outer frame body, wherein fixed side rings are symmetrically welded on two side edges of the main outer frame body, fixing through holes are uniformly formed in the side edges of the fixed side rings, a sealing sleeve groove is formed in one side edge of the main outer frame body, a sealing outer ring is clamped and connected on the inner side edge of the sealing sleeve groove, a main sealing plate is fixedly welded on the inner side edge of the sealing outer ring, rotating discs are symmetrically arranged on the two side edges of the main sealing plate, a sleeved inner groove is formed in the side edge of the main outer frame body, a hinge sleeve groove is formed in the inner side edge of the sleeved inner groove, a fixed inserting rod is vertically welded on the inner side edge of the hinge sleeve groove, a limiting groove channel is uniformly formed in the inner side edge of the sleeved inner groove, a butting oblique block is welded on the inner side edge of the limiting groove, a matching groove is formed in the inner side edge of the sealing sleeve groove, and a sealing rubber ring is butted with the sealing sleeve groove, the inner side of the matching groove is fixedly clamped with an inner rubber ring, the outer side edge of the main sealing plate is uniformly spliced with a splicing plate, one side edge of the outer sealing ring is welded with a splicing ring, the side edge of the splicing ring is fixedly sleeved with the matching rubber ring, the two side edges of the main sealing plate are vertically spliced with splicing connecting rods, the outer side edge of the main sealing plate is vertically welded with an L-shaped connecting rod, one end of the L-shaped connecting rod, far away from the main sealing plate, is provided with a splicing slotted hole, the inner side edge of the main sealing plate is provided with an inner movable groove, the inner side edge of the inner movable groove is provided with an inner rotary disc, the outer side edge of the main sealing plate is uniformly provided with an extending through groove, the inner side edge of the extending through groove is horizontally welded with a fixing rod, the side edge of the splicing plate is provided with a splicing groove, the two side edges of the inner rotary disc are symmetrically and uniformly provided with arc-shaped grooves, and the inner side edge of the arc-shaped groove is horizontally spliced with a first splicing connecting rod, the limiting ring is symmetrically welded on two side edges of the inward rotating disc, a middle trepanning is horizontally arranged at the center of the inward rotating disc, a matching oblique block is welded on one side edge of the insertion plate, a side trepanning is formed on the outer side edge of the inward rotating disc, a middle multilateral hole is horizontally formed in the inner side edge of the middle trepanning, alternating and aligning holes are symmetrically formed in two side edges of the main sealing plate, a limiting ring groove is symmetrically formed in the inner side edge of the inner movable groove, and a middle multilateral rod is fixedly welded on the outer side edge of the insertion connecting rod.

As a preferred embodiment of the present invention: the number of the fixed side rings is two, the two fixed side rings are arranged in parallel, the two fixed side rings are fixedly and symmetrically arranged at the edge positions of two sides of the main outer frame body, the sealing sleeve groove is arranged at the side position of one end of the sleeved inner groove, and the inner side edge of the sealing sleeve groove and the inner part of the sleeved inner groove are mutually communicated.

As a preferred embodiment of the present invention: the fixed welding of sealed outer loop sets up in the outside of main seal plate and is close to one end position, and main seal plate joint sets up the inboard side position of cup jointing the inside groove, and the number of rotating disc is two, and just one side central point of two rotating discs puts all and the one end position holding fixed welding setting of grafting connecting rod.

As a preferred embodiment of the present invention: the inner sleeving groove is arranged at the center of the side edge of the main outer frame body in a penetrating mode, the hinge sleeve groove is horizontally arranged at the position of the side edge, close to the sealing sleeve groove, of the inner side of the inner sleeving groove, the inside of the hinge sleeve groove and the inside of the sealing sleeve groove are kept in a communicating mode, and the fixed inserting rod is vertically inserted into the position of the inner side edge of the sleeving groove hole in a penetrating mode.

As a preferred embodiment of the present invention: the number of spacing channel is a plurality of, and the equal equidistance of a plurality of spacing channels is cyclic annular to be arranged at the inboard side position of cup jointing the inside groove, and the inclined plane side that the top connects the sloping block corresponds the oblique side position that connects at the cooperation sloping block one to one respectively, and the cooperation groove is cyclic annular and sets up the side position at sealed grooving, and sealed rubber ring and interior rubber ring all adopt soft rubber materials preparation to set up.

As a preferred embodiment of the present invention: the number of plugboard and the number of spacing channel way keep unanimous setting, and each other respectively the one-to-one grafting sets up, and the one end of plugboard runs through the formula and pegs graft in the inboard side position that the groove was led to in the extension, and runs through the end and peg graft in the inboard side position in side cover groove, and the grafting ring is cyclic annular fixed setting in a side position of sealed outer loop, and the grafting ring joint sets up in the inboard side position of cooperation groove.

As a preferred embodiment of the present invention: the grafting connecting rod level runs through the interlude and extends to the inboard side position of well trepanning to the hole, L shape connecting rod level is pegged graft in the inboard side position of hinge trepanning, the inboard central point that main seal plate was seted up in the interior activity groove puts, the number that the groove is led to in the extension is a plurality of, and a plurality of extensions lead to the groove and be cyclic annular outside limit position of seting up at main seal plate, the inside that a plurality of extensions lead to the groove keeps leading to with the inside in activity groove and connects the setting, the dead lever level runs through the formula and pegs graft in the inboard side position of cup jointing the channel.

As a preferred embodiment of the present invention: the number of arc channel is a plurality of, and a plurality of arc channels are cyclic annular to be arranged each other and set up the marginal position that is being close to the adversion disc, and the inside of a plurality of arc channels and the inside in side cover groove keep leading to and connect the setting, and one branch difference one-to-one level of grafting connecting rod is pegged graft in the one end position of plugboard, and the spacing ring corresponds the joint respectively and sets up the inboard side position at spacing annular.

As a preferred embodiment of the present invention: the middle multi-edge hole is horizontally arranged at the center of the middle sleeve hole, the inside of the middle multi-edge hole and the inside of the middle sleeve hole are in communication arrangement, the two ends of the middle sleeve hole and the hole are in communication arrangement alternately, the middle multi-edge rod is horizontally and fixedly arranged at the center of the plug-in connecting rod, and the middle multi-edge rod is horizontally clamped and connected to the inner side edge of the middle multi-edge hole.

Compared with the prior art, the invention has the beneficial effects that:

1. the hinge sleeve groove structure is convenient to install and operate by designing the frame body structure, the rotating disc is pushed to drive the main sealing plate to turn over, the L-shaped connecting rod turns over in the hinge sleeve groove, the main sealing plate and the sealing outer ring are in turning and clamping connection at the inner side edge positions of the sleeve inner groove and the sealing sleeve groove, the inserting ring is in clamping connection with the inner side edge of the matching groove, and the sealing outer ring and the inner side edge of the sealing sleeve groove are sealed better under the sealing of the matching rubber ring, the sealing rubber ring and the inner rubber ring.

2. The invention drives the inserting connecting rod to rotate in the middle sleeve hole after rotating the rotating disc, the rotation of the middle multi-edge rod drives the inner rotating disc to rotate at the inner side of the inner movable groove, the arc-shaped groove channel extrudes the inserting connecting rod to move under the rotation of the inner rotating disc, the inserting connecting rod pushes the inserting plate to move at the inner side of the extending through groove, the inserting plate extends outwards under the limitation of the fixed rod and the sleeve groove channel, one end of the inserting plate extends outwards to be inserted into the corresponding limiting groove channel, the inner rotating disc continuously extrudes the inserting plate to be inserted into the limiting groove channel under the rotation of the rotating disc, the main sealing plate can be more tightly clamped in the sleeve inner groove under the abutting inclination of the matching inclined block and the abutting inclined block, thereby greatly improving the sealing performance, and simplifying the structure of the device design and the operation, the clamping structure of the expanding type is adopted, so that the clamping is more stable and safer, and meanwhile, the opening or closing is more rapid and efficient in a rotating operation mode.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic perspective view of a mining underground airtight door with an edge seal;

FIG. 2 is a schematic structural view of a front cross-sectional connection detail of a mining downhole containment door with an edge seal;

FIG. 3 is a schematic structural view of a front view connection detail of a main seal plate of a mining downhole containment door with an edge seal;

FIG. 4 is a schematic structural diagram of a top connection detail of a main seal plate of a mining downhole containment door with an edge seal;

FIG. 5 is a schematic diagram of a connection detail of a side view profile of a primary seal plate of a mining downhole containment door with an edge seal;

FIG. 6 is a schematic structural diagram of a front sectional connection detail of an internal rotating disk of a mining downhole containment door with an edge seal;

FIG. 7 is a schematic structural view of a main seal plate front cross-sectional connection detail of a mining downhole containment door with edge sealing;

fig. 8 is a schematic structural diagram of a plug connecting rod front-view connection detail of a mining underground airtight door with edge sealing.

In the figure: 1. a main outer frame body; 2. fixing the side ring; 3. a fixing through hole; 4. sealing the sleeve groove; 5. sealing the outer ring; 6. a primary seal plate; 7. rotating the disc; 8. sleeving the inner groove; 9. a hinge sleeve groove; 10. fixing the inserted rod; 11. a limiting channel; 12. butting an inclined block; 13. a mating groove; 14. sealing the rubber ring; 15. an inner rubber ring; 16. a plugboard; 17. a plug-in ring; 18. matching with a rubber ring; 19. inserting a connecting rod; 20. an L-shaped connecting rod; 21. sleeving the slotted hole; 22. an inner movable groove; 23. an inward rotating disc; 24. an extended through slot; 25. fixing the rod; 26. a sleeving groove; 27. an arc-shaped channel; 28. a first connecting rod is inserted; 29. a limiting ring; 30. a middle trepan boring; 31. matching the inclined block; 32. a side sleeve groove; 33. a middle polygonal hole; 34. inserting and aligning holes; 35. a limiting ring groove; 36. and a middle polygonal rod.

Detailed Description

Referring to fig. 1-2, in the embodiment of the present invention, a mining underground airtight door with edge sealing comprises a main outer frame 1, two fixed side rings 2 are symmetrically welded to two side edges of the main outer frame 1, fixing through holes 3 are uniformly formed in the side edges of the fixed side rings 2, a sealing sleeve groove 4 is formed in one side edge of the main outer frame 1, the number of the fixed side rings 2 is two, the two fixed side rings 2 are arranged in parallel, the two fixed side rings 2 are fixedly and symmetrically arranged at the edge positions of the two side edges of the main outer frame 1, the sealing sleeve groove 4 is formed at one end side edge position of the inner sleeve groove 8, the inner side edge of the sealing sleeve groove 4 and the inner part of the inner sleeve groove 8 are in communication connection, a sealing outer ring 5 is clamped to the inner side edge of the sealing sleeve groove 4, a main sealing plate 6 is fixedly welded to the inner side edge of the sealing outer ring 5, rotating discs 7 are symmetrically arranged at two side edges of the main sealing plate 6, the sealing outer ring 5 is fixedly welded at the position close to one end of the outer side of the main sealing plate 6, the main sealing plate 6 is clamped at the inner side edge of the sleeving inner groove 8, the number of the rotating discs 7 is two, the central positions of one side edges of the two rotating discs 7 are fixedly welded with one end position of the inserting connecting rod 19, the side edge of the main outer frame body 1 is provided with the sleeving inner groove 8, the inner side edge of the sleeving inner groove 8 is provided with a hinge sleeve groove 9, the inner side edge of the hinge sleeve groove 9 is vertically welded with a fixed inserting rod 10, the sleeving inner groove 8 is arranged at the central position of the side edge of the main outer frame body 1 in a penetrating way, the hinge sleeve groove 9 is horizontally arranged at the position close to one side edge of the sealing sleeve groove 4 at the inner side edge of the sleeving inner groove 8, the inner part of the hinge sleeve groove 9 is communicated with the inner part of the sealing sleeve groove 4, and the fixed inserting rod 10 is vertically inserted at the position of the inner side edge of the sleeving groove hole 21 in a penetrating way, the inner side edge of the sleeved inner groove 8 is uniformly provided with limit channels 11, the inner side edge of each limit channel 11 is welded with a butting inclined block 12, the inner side edge of each sealing sleeve groove 4 is provided with a matching groove 13, the inner side edge of each sealing sleeve groove 4 is butted with a sealing rubber ring 14, the inner side of each matching groove 13 is fixedly clamped with an inner rubber ring 15, the number of the limit channels 11 is multiple, the limit channels 11 are annularly arranged at the inner side edge position of the sleeved inner groove 8 at equal intervals, the inclined side edges of the butting inclined blocks 12 are correspondingly connected at the inclined side edge position of the matching inclined block 31 one by one, the matching grooves 13 are annularly arranged at the side edge position of the sealing sleeve groove 4, and the sealing rubber rings 14 and the inner rubber rings 15 are made of soft rubber materials;

referring to fig. 3-4, in the embodiment of the present invention, a mining underground airtight door with edge sealing is provided, wherein an insertion plate 16 is uniformly inserted into an outer side edge of a main sealing plate 6, an insertion ring 17 is welded to one side edge of a sealing outer ring 5, the number of the insertion plates 16 is consistent with the number of limiting channels 11, and the insertion plates are respectively inserted into the limiting channels one by one, one end of the insertion plate 16 is inserted into an inner side edge position of an extending through groove 24 in a penetrating manner, and the penetrating end is inserted into an inner side edge position of a side sleeve groove 32, the insertion ring 17 is fixedly arranged at one side edge position of the sealing outer ring 5 in an annular manner, the insertion ring 17 is clamped and arranged at an inner side edge position of a matching groove 13, a matching rubber ring 18 is fixedly sleeved on a side edge of the insertion ring 17, insertion connecting rods 19 are vertically inserted into two side edges of the main sealing plate 6, an L-shaped connecting rod 20 is vertically welded to an outer side edge of the main sealing plate 6, the inserting connecting rod 19 horizontally penetrates through the penetrating hole 34 and extends to the inner side position of the middle sleeve hole 30, the L-shaped connecting rod 20 is horizontally inserted and connected to the inner side position of the hinge sleeve groove 9, and one end, far away from the main sealing plate 6, of the L-shaped connecting rod 20 is provided with a sleeve groove hole 21;

referring to fig. 5-8, in the embodiment of the present invention, an edge-sealed mining underground airtight door is provided, wherein an inner side edge of a main sealing plate 6 is provided with an inner movable groove 22, an inner rotating disk 23 is disposed on an inner side edge of the inner movable groove 22, an outer side edge of the main sealing plate 6 is uniformly provided with extending through grooves 24, an inner side edge of the extending through grooves 24 is horizontally welded with a fixing rod 25, the inner movable groove 22 is disposed at an inner center position of the main sealing plate 6, the extending through grooves 24 are plural, the extending through grooves 24 are annularly disposed at an outer side edge position of the main sealing plate 6, the interiors of the extending through grooves 24 and the interiors of the inner movable grooves 22 are in a through connection manner, the fixing rod 25 is horizontally inserted at an inner side edge position of the sleeve groove 26, a sleeve groove 26 is disposed at a side edge of the insertion plate 16, and arc-shaped grooves 27 are symmetrically and uniformly disposed at two side edges of the inner rotating disk 23, the inner side edge of the arc-shaped channel 27 is horizontally inserted with a first inserting connection rod 28, two side edges of the inner rotating disc 23 are symmetrically welded with limiting rings 29, the number of the arc-shaped channel 27 is multiple, the multiple arc-shaped channels 27 are annularly arranged at the edge position close to the inner rotating disc 23, the interiors of the multiple arc-shaped channels 27 and the interior of the side sleeve grooves 32 are communicated, the first inserting connection rods 28 are respectively and horizontally inserted at one end position of the inserting plate 16 one by one, the limiting rings 29 are respectively and correspondingly clamped and arranged at the inner side edge position of the limiting ring groove 35, the central position of the inner rotating disc 23 is horizontally provided with a middle sleeve hole 30, one side edge of the inserting plate 16 is welded with a matching oblique block 31, the outer side edge of the inner rotating disc 23 is provided with the side sleeve grooves 32, the inner side edge of the middle sleeve hole 30 is horizontally provided with a middle multi-edge hole 33, two side edges of the main sealing plate 6 are symmetrically provided with penetrating holes 34, the inner side edge of the inner movable groove 22 is symmetrically provided with the limiting ring groove 35, the outer side edge of the plug connecting rod 19 is fixedly welded with a middle polygonal rod 36, the middle polygonal hole 33 is horizontally arranged at the center position of the middle sleeve hole 30, the inner part of the middle polygonal hole 33 is communicated with the inner part of the middle sleeve hole 30, the penetrating hole 34 is communicated with the two ends of the middle sleeve hole 30, the middle polygonal rod 36 is horizontally and fixedly arranged at the center position of the plug connecting rod 19, and the middle polygonal rod 36 is horizontally clamped and arranged at the inner side edge position of the middle polygonal hole 33.

The components are standard parts in general or known to those skilled in the art, and their structure and principle are known to those skilled in the art through technical manuals or through routine experimentation.

The working principle of the invention is as follows:

the main outer frame body 1 is placed at the inner side position of a mine opening, the main outer frame body is fixed inside the mine opening by inserting bolts into the fixing through holes 3, the rotating disc 7 is pushed to drive the main sealing plate 6 to turn, the L-shaped connecting rod 20 turns inside the hinge sleeve groove 9, the main sealing plate 6 and the sealing outer ring 5 are turned and clamped at the inner side positions of the sleeve inner groove 8 and the sealing sleeve groove 4, the inserting ring 17 is clamped and arranged inside the matching groove 13, the sealing outer ring 5 and the inner side of the sealing sleeve groove 4 are sealed under the sealing of the matching rubber ring 18, the sealing rubber ring 14 and the inner rubber ring 15, after the rotating disc 7 rotates, the inserting connecting rod 19 is driven to rotate inside the middle sleeve hole 30, the rotation of the middle rod 36 enables the inner rotating disc 23 to rotate inside the inner side movable groove 22, the arc-shaped channel 27 extrudes the inserting connecting rod 28 to move under the rotation of the inner rotating disc 23, let a grafting connecting rod 28 top follow plugboard 16 and remove at the inboard side that extends logical groove 24, and make plugboard 16 outside side expanding extension under the restriction of dead lever 25 and cup joint channel 26, let the inside of plugboard 16 one end outside extension grafting to corresponding spacing channel 11, make adversion disc 23 continue to extrude plugboard 16 and insert the inside of spacing channel 11 under the rotation of rotating disc 7, oblique the top of cooperation sloping block 31 and top grafting sloping block 12 makes main sealing plate 6 can be inseparabler joint in the inside of cup joint inside groove 8, thereby let the great improvement of leakproofness.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.