A mine air distributor

Abstract

The application relates to the technical field of engineering machinery, in particular to a mine air distributor, which comprises an air distribution shell, the air distribution shell comprises a hollow main shell, a first air inlet, a second air inlet, an upper air outlet and a limiting stopper; the sealing baffle comprises a hinged component, a driving device and an end plate component; the hinged component comprises a rotating round shaft, an axial inner cavity, a rotation-stopping insertion strip and the like; the driving device comprises an outer threaded rod, a limiting ring, an operating round rod, an inner threaded ring, a rotation-stopping insertion hole and a longitudinal sliding block; the end plate component is provided with two, and one end plate component is arranged in any open sliding cavity. The end plate component is not popped out outward in normal state, so that the sealing baffle can rotate freely around the hinged component, and the air distributor can be adjusted autonomously; the sealing baffle can also realize the sealing contact between the end plate component and the inner wall of the hollow main shell through simple operation, the sealing performance of the air distributor is further strengthened, and air leakage is avoided.

Description

Technical Field

[0001] This application relates to the field of engineering machinery technology, specifically to a mine ventilation distributor. Background Technology

[0002] Mine ventilation distributors are crucial equipment for safe production in mines. They are primarily used in parallel operation of dual axial flow local ventilation fans or in a main / standby fan combination structure. They automatically switch ventilation ducts when one fan fails, ensuring normal ventilation and smooth production underground. Existing ventilation distributors simply have a hinged baffle between the main and standby air inlets. The sealing between the hinged baffle and the inner wall of the distributor is limited. Therefore, a mine ventilation distributor needs to be designed that can achieve a higher degree of sealing while ensuring smooth rotation of the hinged baffle. Utility Model Content

[0003] A mine ventilation distributor includes a ventilation housing, which includes a hollow main shell, a first air inlet and a second air inlet located below the hollow main shell, and an upper air outlet located at the upper end of the hollow main shell. The hollow main shell is trapezoidal in shape, narrower at the top and wider at the bottom. A limiting block is provided on the left and right inner walls of the hollow main shell, and a sealing baffle is hinged to the middle of the lower end face of the hollow main shell.

[0004] The sealing baffle includes a hinge assembly, a drive device, and an end plate assembly;

[0005] The hinge assembly includes a rotating shaft, an axial inner cavity within the rotating shaft, and an anti-rotation insert on the inner wall of the axial inner cavity. A hinge terminal is provided at each of the two ends of the rotating shaft in the axial direction. The rear hinge terminal also has an operating rear hole communicating with the axial inner cavity. A rectangular plate is also provided on one side of the rotating shaft. An open sliding cavity is provided at the front and rear of the rectangular plate. A communicating transverse hole communicating with the axial inner cavity is provided on the right side of the open sliding cavity. A perforated insert is provided on the left and right sides of the open sliding cavity.

[0006] The driving device includes a rotatable external threaded rod disposed in an axial inner cavity. A limiting ring is provided at the front and rear ends of the external threaded rod. An operating rod passing through an operating rear hole is provided at the rear end of the external threaded rod. An internal threaded ring is screwed to the front and rear of the external threaded rod. An anti-rotation insertion hole is provided on the right side of the internal threaded ring to engage with the anti-rotation insert. A longitudinal sliding block passing through a connecting transverse hole is also provided on the left side of the internal threaded ring.

[0007] Two end plate assemblies are provided, with one end plate assembly in each of the open sliding cavities. The end plate assembly moves outward after being squeezed by the driving device to achieve a seal with the inner wall of the hollow main shell.

[0008] The end plate assembly includes a translation component and a longitudinal translation component;

[0009] The translation assembly includes a guide slide plate located on the left side of the open slide cavity, a translation sleeve plate slidably sleeved on the guide slide plate, a pressure inclined surface located on the right side of the translation sleeve plate, and a driving inclined block located on the lower end face of the translation sleeve plate.

[0010] The longitudinal movement assembly includes a sliding longitudinal plate disposed in the open sliding cavity. The left and right sides of the sliding longitudinal plate are respectively provided with side receiving holes with perforated lugs, spring core rods disposed in the receiving side holes and passing through the perforated lugs, and reset compression springs wound around the spring core rods. The sliding longitudinal plate is also provided with a driven slot that cooperates with the driving inclined block.

[0011] A hinged insertion hole is provided on the lower front and rear end faces of the hollow main shell.

[0012] Each translation plate has two drive ramps on its lower end face.

[0013] The drive ramp tilts from the front left to the rear right.

[0014] The beneficial effects of the above technical solution are as follows:

[0015] In the case described in this case, the end plate assembly of the air distributor does not pop out under normal conditions, allowing the sealing baffle to rotate freely around the hinge assembly, which facilitates the autonomous adjustment of the air distributor.

[0016] The air distributor described in this case can also achieve a sealed contact between the end plate assembly and the inner wall of the hollow main shell through a simple operation, thereby further enhancing the sealing performance of the air distributor and preventing air leakage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of one embodiment of the mine ventilation system.

[0018] Figure 2 This is a schematic diagram of one embodiment of the air distribution housing.

[0019] Figure 3 This is a cross-sectional view of one embodiment of the hinge assembly.

[0020] Figure 4 This is a schematic diagram of one embodiment of the hinge assembly.

[0021] Figure 5 This is a cross-sectional view of one embodiment of the sealing baffle.

[0022] Figure 6 This is a half-sectional view of one embodiment of the sealing baffle.

[0023] Figure 7 yes Figure 6Enlarged schematic diagram of the first state of part A in the middle.

[0024] Figure 8 yes Figure 6 Enlarged schematic diagram of the second state of part A in the middle.

[0025] In the picture:

[0026] 1. Air distribution shell; 11. Hollow main shell; 12. First air inlet; 13. Second air inlet; 14. Top air outlet; 15. Limiting block; 16. Hinge socket.

[0027] 2. Sealing baffle;

[0028] 3. Hinge assembly; 31. Rotating shaft; 32. Axial cavity; 33. Anti-rotation insert; 34. Hinge terminal; 35. Operating rear hole; 36. Rectangular plate; 37. Open sliding cavity; 38. Communicating transverse hole; 39. Hole with hole.

[0029] 4. Drive device; 41. External threaded rod; 42. Limiting ring; 43. Operating rod; 44. Internal threaded ring; 45. Anti-rotation insertion hole; 46. Longitudinal sliding block;

[0030] 5. End plate assembly, 51. Translation assembly, 511. Guide slide plate, 512. Translation sleeve plate, 513. Pressure inclined surface, 514. Drive inclined block; 52. Longitudinal translation assembly, 521. Sliding longitudinal plate, 522. Receiving side hole, 523. Spring core rod, 524. Return spring, 525. Driven slot. Detailed Implementation

[0031] A mine ventilation distributor includes a ventilation housing 1, which includes a hollow main shell 11, a first air inlet 12 and a second air inlet 13 located below the hollow main shell 11, and an upper air outlet 14 located at the upper end of the hollow main shell 11. The hollow main shell 11 is trapezoidal in shape, narrower at the top and wider at the bottom. A limiting block 15 is provided on the left and right inner walls of the hollow main shell 11, and a sealing baffle 2 is hinged to the middle of the lower end face of the hollow main shell 11.

[0032] The sealing baffle 2 includes a hinge assembly 3, a driving device 4, and an end plate assembly 5;

[0033] The hinge assembly 3 includes a rotating shaft 31, an axial inner cavity 32 disposed within the rotating shaft 31, and an anti-rotation insert 33 disposed on the inner wall of the axial inner cavity 32. The two ends of the rotating shaft 31 in the axial direction are respectively provided with a hinge terminal 34. The rear hinge terminal 34 is also provided with an operation rear hole 35 communicating with the axial inner cavity 32. A rectangular plate 36 is also provided on one side of the rotating shaft 31. An open sliding cavity 37 is provided at the front and rear of the rectangular plate 36. A communicating transverse hole 38 communicating with the axial inner cavity 32 is provided on the right side of the open sliding cavity 37. A perforated insert ear 39 is provided on the left and right sides of the open sliding cavity 37.

[0034] The driving device 4 includes a rotatable external threaded rod 41 disposed in the axial inner cavity 32. A limiting ring 42 is provided at the front and rear ends of the external threaded rod 41. An operating rod 43 passing through the operating rear hole 35 is provided at the rear end of the external threaded rod 41. An internal threaded ring 44 is screwed to the front and rear of the external threaded rod 41. An anti-rotation insertion hole 45 is provided on the right side of the internal threaded ring 44 to engage with the anti-rotation insertion strip 33. A longitudinal sliding block 46 passing through the connecting transverse hole 38 is also provided on the left side of the internal threaded ring 44.

[0035] Two end plate assemblies 5 are provided, and one end plate assembly 5 is provided in each of the open sliding cavities 37. The end plate assembly 5 moves outward after being squeezed by the driving device 4 to achieve a seal with the inner wall of the hollow main shell 11.

[0036] The end plate assembly 5 includes a translation assembly 51 and a longitudinal translation assembly 52;

[0037] The translation component 51 includes a guide slide plate 511 disposed on the left side of the open slide cavity 37, a translation sleeve 512 slidably sleeved on the guide slide plate 511, a pressure inclined surface 513 disposed on the right side of the translation sleeve 512, and a driving inclined block 514 disposed on the lower end face of the translation sleeve 512.

[0038] The longitudinal movement assembly 52 includes a sliding longitudinal plate 521 disposed in the open sliding cavity 37. The left and right sides of the sliding longitudinal plate 521 are respectively provided with side receiving holes 522 for receiving lugs with holes 39, spring core rods 523 disposed in the receiving side holes 522 and passing through the lugs with holes 39, and return springs 524 wound around the spring core rods 523. The sliding longitudinal plate 521 is also provided with a driven slot 525 that cooperates with the drive inclined block 514.

[0039] The hollow main shell 11 has a hinged insertion hole 16 on the lower front and rear end faces.

[0040] Each translation sleeve 512 has two driving inclined blocks 514 on its lower end face.

[0041] The drive ramp 514 tilts from the front left to the rear right.

[0042] The air distributor described in this case can drive the end plate assembly 5 to move up and down, achieving sealed contact between it and the upper and lower surfaces of the air distributor:

[0043] Rotate the operating rod 43 and the external threaded rod 41. The external threaded rod 41 rotates and drives the anti-rotation insertion hole 45 and the longitudinal sliding block 46 to move upward.

[0044] The longitudinal sliding block 46 acts on the pressure inclined surface 513, thereby driving the translation sleeve 512 and the guide slide plate 511 to move to the left.

[0045] The driving wedge 514 acts on the driven slot 525, thereby driving the sliding longitudinal plate 521 to move downward against the damping of the reset spring 524, so as to achieve the sealing between the sliding longitudinal plate 521 and the inner wall of the hollow main shell 11.

Claims

1. A mine ventilation distributor, comprising a ventilation housing (1), wherein the ventilation housing (1) comprises a hollow main shell (11), a first air inlet (12) disposed below the hollow main shell (11), a second air inlet (13), and an upper air outlet (14) disposed at the upper end of the hollow main shell (11), characterized in that: The hollow main shell (11) is trapezoidal in shape, narrow at the top and wide at the bottom. A limiting block (15) is provided on the left and right inner walls of the hollow main shell (11). A sealing baffle (2) is also hinged to the middle of the lower end face of the hollow main shell (11). The sealing baffle (2) includes a hinge assembly (3), a drive device (4), and an end plate assembly (5); The hinge assembly (3) includes a rotating shaft (31), an axial inner cavity (32) disposed in the rotating shaft (31), and an anti-rotation insert (33) disposed on the inner wall of the axial inner cavity (32). The two ends of the rotating shaft (31) in the axial direction are respectively provided with a hinge terminal (34). The hinge terminal (34) located at the rear is also provided with an operation rear hole (35) communicating with the axial inner cavity (32). A rectangular plate (36) is also provided on one side of the rotating shaft (31). An open sliding cavity (37) is provided in front and rear of the rectangular plate (36). A communicating transverse hole (38) communicating with the axial inner cavity (32) is provided on the right side of the open sliding cavity (37). A perforated insert (39) is provided on the left and right sides of the open sliding cavity (37). The driving device (4) includes a rotatable external thread rod (41) disposed in the axial inner cavity (32). The external thread rod (41) has a limiting ring (42) at the front and rear ends respectively. The external thread rod (41) has an operating rod (43) that passes through the operating rear hole (35) at the rear end. The external thread rod (41) is screwed with an internal thread ring (44) at the front and rear respectively. The internal thread ring (44) has an anti-rotation insertion hole (45) on the right side that is engaged with the anti-rotation insert (33). The internal thread ring (44) also has a longitudinal sliding block (46) that passes through the connecting transverse hole (38) on the left side. Two end plate assemblies (5) are provided. One end plate assembly (5) is provided in each of the open sliding cavities (37). The end plate assembly (5) moves outward after being squeezed by the driving device (4) to achieve a seal with the inner wall of the hollow main shell (11).

2. A mine ventilation distributor according to claim 1, characterized in that: The end plate assembly (5) includes a translation assembly (51) and a longitudinal translation assembly (52); The translation assembly (51) includes a guide slide plate (511) disposed on the left side of the open slide cavity (37), a translation sleeve plate (512) slidably sleeved on the guide slide plate (511), a pressure inclined surface (513) disposed on the right side of the translation sleeve plate (512), and a driving inclined block (514) disposed on the lower end face of the translation sleeve plate (512). The longitudinal moving assembly (52) includes a sliding longitudinal plate (521) disposed in the open sliding cavity (37). The left and right sides of the sliding longitudinal plate (521) are respectively provided with a side receiving hole (522) for receiving a perforated lug (39), a spring core rod (523) disposed in the receiving side hole (522) and passing through the perforated lug (39), and a return spring (524) wound around the spring core rod (523). The sliding longitudinal plate (521) is also provided with a driven slot (525) that cooperates with the driving inclined block (514).

3. A mine ventilation distributor according to claim 2, characterized in that: The hollow main shell (11) is provided with a hinged insertion hole (16) on the lower front and rear end faces.

4. A mine ventilation distributor according to claim 3, characterized in that: Each translation sleeve (512) has two driving wedges (514) on its lower end face.

5. A mine ventilation distributor according to claim 4, characterized in that: The drive ramp (514) tilts from the front left to the rear right.

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