CN216641786U

CN216641786U - Adjustable rotating hinge for underground coal mine air door control

Info

Publication number: CN216641786U
Application number: CN202122828596.2U
Authority: CN
Inventors: 李宏业; 高俊强; 刘强; 薛超宏; 王鹏
Original assignee: Novenke Intelligent Ventilation Research Institute Xi'an Co ltd
Current assignee: Nuowenke Blower Fan Beijing Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-05-31
Anticipated expiration: 2031-11-18

Abstract

The utility model relates to the technical field of hinges, in particular to an adjustable rotary hinge for controlling underground air doors of a coal mine, which comprises a first mounting block, a rotating shaft, a threaded sleeve, a supporting tube, a sleeve, a second mounting block, a first embedding groove and a second embedding groove, wherein the supporting tube is welded on the upper surface of the first mounting block, the sleeve is sleeved on the outer wall of the upper end of the supporting tube, the second mounting block is arranged above the sleeve, the threaded sleeve is rotatably sleeved on the outer wall of the lower end of the supporting tube, the outer walls of two sides of the supporting tube are provided with symmetrically distributed limiting grooves, the inner wall of the sleeve is welded with symmetrically distributed limiting strips, the upper surface of the sleeve is provided with the first embedding groove, the lower surface of the second mounting block is provided with the second embedding groove, and balls are arranged between the first embedding groove and the second embedding groove. The air door can drive the sleeve to ascend by rotating the threaded sleeve, so that the air door and the door frame can be conveniently adjusted, the air door and the door frame are tightly attached, and the actual use effect is better.

Description

Adjustable rotating hinge for underground coal mine air door control

Technical Field

The utility model relates to the technical field of hinges, in particular to an adjustable rotary hinge for controlling an underground air door of a coal mine.

Background

The mine air door has the functions of ensuring safe production, stabilizing a ventilation system and reducing ineffective air leakage, and can supply enough fresh air underground to meet the requirement of personnel on oxygen. Dilute the poisonous and harmful gas and dust in the well and ensure the safe production. The underground climate is adjusted, and a good working environment is created. The mine ventilation system consists of two parts, namely a ventilator and a ventilation network. After entering a mine from an air inlet wellhead, the air flow passes through various underground air fields and then enters an air return shaft, and is discharged out of the mine from the air return shaft, and the whole route through which the air flow passes is called a mine ventilation system.

Through massive search, the prior art is found, and the publication number is as follows: CN213654544U discloses fixed stable angularly adjustable hinge, including hinge piece, hinge bull stick and connection piece, the connection piece is all installed to the both sides of hinge bull stick, the hinge piece is installed to one side of connection piece, the regulation structure is installed to the one end of hinge piece, the internally mounted of sliding tray has the rack bar, the movable rod is installed to one side of rack bar, the dead lever is installed to the bottom of movable rod one side, lubricating structure is installed on the inside top of hinge bull stick, the surface of hinge bull stick all overlaps and is equipped with rotating-structure. When the hinge is used, in order to be more convenient and stable, an external power supply of the micro motor can be switched on, and the micro motor drives the gear to rotate, so that the gear drives the rack rod above to move left and right in the sliding groove, the movable rod and the fixed rod are pushed by the rack rod to fold the hinge piece to perform telescopic motion, and the hinge piece is more stable when being opened and closed.

To sum up, traditional air door hinge can't carry out nimble regulation in the use, only can realize the installation of air door through the size of enlargiing the mounting hole, causes the problem of two hinge disalignments easily for appear the clearance between air door and the door frame, the weight of air door is big more, and the problem in appearance clearance is more serious, can lead to the air door serious wear, thereby reduces the life of air door, and the condition of leaking out appears.

SUMMERY OF THE UTILITY MODEL

The utility model provides an adjustable rotating hinge for controlling an underground air door of a coal mine, which solves the technical problems.

The scheme for solving the technical problems is as follows: the utility model provides a colliery is adjustable hinge that rotates for air door control in pit, includes first installation piece, pivot, swivel nut, stay tube, sleeve pipe, second installation piece, first gomphosis groove and second gomphosis groove, surface welding has the stay tube on the first installation piece, the sleeve pipe has been cup jointed to stay tube upper end outer wall, the sleeve pipe top is provided with the second installation piece, surface welding has the pivot under the second installation piece, stay tube lower extreme outer wall rotates and has cup jointed the swivel nut, the spacing groove of symmetric distribution is seted up to stay tube both sides outer wall, just the welding of sleeve pipe inner wall has the spacing of symmetric distribution, first gomphosis groove has been seted up to the sleeve pipe upper surface, second gomphosis groove has been seted up to second installation piece lower surface, first gomphosis groove with be provided with the ball that is circular array and distributes between the second gomphosis groove.

The utility model has the beneficial effects that: according to the utility model, the support tube and the sleeve are arranged between the first mounting block and the second mounting block, a worker can rotate the screw sleeve according to the actual mounting requirement, the screw sleeve rotates and goes up and down along the surface of the support tube to support the bottom end of the sleeve, so that the position of the upper surface of the sleeve is changed and can be adjusted according to the actual use requirement, and the ball is arranged between the sleeve and the second mounting block, so that the friction of the second mounting block on the upper surface of the sleeve in the rotating process can be effectively reduced, the rotating smoothness of the air door and the abrasion generated by the sleeve are ensured, the actual use is facilitated, the mounting flexibility of the air door is effectively improved, and the sealing performance of the air door after being mounted is ensured.

On the basis of the technical scheme, the utility model can be further improved as follows.

Further, a bearing is embedded in the inner portion of the upper surface of the first mounting block.

The beneficial effect of adopting the further scheme is that: the bearing can carry out spacing to the pivot lower extreme, keeps the rotational stability of pivot.

Further, the first engagement groove and the second engagement groove correspond to each other, and the axes of the first engagement groove and the second engagement groove coincide with the axis of the rotating shaft.

The beneficial effect of adopting the further scheme is that: the friction between the second mounting block and the sleeve can be reduced by arranging the balls between the first embedding groove and the second embedding groove, so that the mechanical abrasion is reduced, and the rotation smoothness is guaranteed.

Furthermore, the limiting strip is inserted in the limiting groove in a sliding mode.

The beneficial effect of adopting the further scheme is that: the limiting groove can limit the stroke of the sleeve, so that the sleeve can only lift in the vertical direction along the surface of the supporting pipe, and the problem that the height of the adjusting sleeve fails due to the fact that the sleeve rotates on the surface of the supporting pipe is avoided.

Furthermore, the outer wall of the supporting pipe and the inner wall of the threaded sleeve are both provided with meshed threads.

The beneficial effect of adopting the further scheme is that: the screw thread can be convenient for the swivel nut to rotate along the stay tube surface and go up and down, and the staff of being convenient for adjusts.

Furthermore, the outer walls of the balls are sleeved with retainers.

The beneficial effect of adopting the above further scheme is: the retainer can fix the spacing between the balls, and prevents the balls from deviating.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:

FIG. 1 is a schematic main sectional structure view of an adjustable rotary hinge for controlling a coal mine underground air door, provided by an embodiment of the utility model;

FIG. 2 is a schematic view of a partial cross-sectional enlarged structure of a swivel nut of an adjustable rotary hinge for controlling a coal mine underground air door, which is provided by the embodiment of the utility model;

fig. 3 is an enlarged structural schematic view of a first embedding groove and a second embedding groove of the adjustable rotating hinge for controlling the underground coal mine air door, which is provided by the embodiment of the utility model;

FIG. 4 is a schematic view of a sectional view of a casing of an adjustable rotary hinge for controlling a coal mine underground air door according to an embodiment of the present invention;

fig. 5 is a schematic top view of a retainer of an adjustable rotary hinge for controlling a coal mine underground air door according to an embodiment of the utility model.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a first mounting block; 2. a bearing; 3. a rotating shaft; 4. a threaded sleeve; 5. supporting a tube; 6. a sleeve; 7. a second mounting block; 8. a ball bearing; 9. a cage; 10. a limiting strip; 11. a limiting groove; 12. a thread; 13. a first fitting groove; 14. a second fitting groove.

Detailed Description

The principles and features of the present invention are described below in conjunction with the accompanying fig. 1-5, which are provided as examples to illustrate the utility model and not to limit the scope of the utility model. The utility model is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in figures 1 to 5, the utility model provides an adjustable rotary hinge for controlling a coal mine underground air door, which comprises a first mounting block 1, a rotating shaft 3, a threaded sleeve 4, a supporting tube 5, a sleeve 6, a second mounting block 7, a first embedded groove 13 and a second embedded groove 14, wherein the supporting tube 5 is welded on the upper surface of the first mounting block 1, the sleeve 6 is sleeved on the outer wall of the upper end of the supporting tube 5, the second mounting block 7 is arranged above the sleeve 6, the rotating shaft 3 is welded on the lower surface of the second mounting block 7, the threaded sleeve 4 is rotatably sleeved on the outer wall of the lower end of the supporting tube 5, the outer walls of two sides of the supporting tube 5 are provided with symmetrically distributed limiting grooves 11, the inner wall of the sleeve 6 is welded with symmetrically distributed limiting strips 10, the upper surface of the sleeve 6 is provided with the first embedded groove 13, the lower surface of the second mounting block 7 is provided with the second embedded groove 14, and balls 8 distributed in a circular array are arranged between the first embedded groove 13 and the second embedded groove 14, set up stay tube 5 and sleeve pipe 6 between first installation piece 1 and the second installation piece 7, the staff can be according to the needs of actual installation, rotate swivel nut 4, swivel nut 4 goes up and down along 5 surperficial rotations of stay tube, can support the bottom of sleeve pipe 6, make the position of sleeve pipe 6 upper surface change, can adjust according to the needs of in-service use, and set up ball 8 between sleeve pipe 6 and the second installation piece 7, can effectively reduce second installation piece 7 and rotate the friction that the in-process caused sleeve pipe 6 upper surface, the rotation smoothness nature of air door has been ensured and the wearing and tearing that reduce sleeve pipe 6 and produce, do benefit to in-service use more, the flexibility of air door installation has effectively been improved, the leakproofness after the air door installation has been ensured.

Preferably, the bearing 2 is embedded in the upper surface of the first mounting block 1, and the bearing 2 can limit the lower end of the rotating shaft 3 and keep the rotating stability of the rotating shaft 3.

Preferably, the first fitting groove 13 and the second fitting groove 14 correspond to each other, the axial centers of the first fitting groove 13 and the second fitting groove 14 coincide with the axial center of the rotating shaft 3, and the balls 8 provided between the first fitting groove 13 and the second fitting groove 14 can reduce friction between the second mounting block 7 and the sleeve 6, reduce mechanical wear, and ensure rotational smoothness.

Preferably, the limiting strip 10 is inserted into the limiting groove 11 in a sliding manner, and the limiting groove 11 can limit the stroke of the sleeve 6, so that the sleeve 6 can only lift in the vertical direction along the surface of the supporting tube 5, and the problem that the height of the adjusting sleeve 6 fails due to the rotation of the sleeve 6 on the surface of the supporting tube 5 is avoided.

Preferably, the outer wall of the support tube 5 and the inner wall of the threaded sleeve 4 are both provided with engaged threads 12, and the threads 12 can facilitate the threaded sleeve 4 to rotate and lift along the surface of the support tube 5, so that the adjustment by a worker is facilitated.

Preferably, the outer wall of each ball 8 is sleeved with a retainer 9, and the retainers 9 can fix the distance between the balls 8 to prevent the balls 8 from deviating.

The specific working principle and the using method of the utility model are as follows: first installation piece 1 and second installation piece 7 weld respectively in door frame and air door surface, set up stay tube 5 and sleeve pipe 6 between first installation piece 1 and the second installation piece 7, the staff can be according to the needs of actual installation, rotate swivel nut 4, swivel nut 4 goes up and down along 5 surperficial rotations of stay tube, can support the bottom of sleeve pipe 6, make the position of sleeve pipe 6 upper surface change, can adjust according to the needs of in-service use, and set up ball 8 between sleeve pipe 6 and the second installation piece 7, can effectively reduce second installation piece 7 and rotate the friction that the in-process caused to sleeve pipe 6 upper surface, the rotation smoothness nature of air door has been ensured and the wearing and tearing that reduce sleeve pipe 6 and produce, do benefit to in-service use more, the flexibility of air door installation has effectively been improved, the leakproofness after the air door installation has been ensured.

The foregoing is merely a preferred embodiment of the utility model and is not intended to limit the utility model in any manner; the present invention may be readily implemented by those of ordinary skill in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the utility model as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a colliery is adjustable hinge that rotates for air door control in pit which characterized in that: the device comprises a first mounting block (1), a rotating shaft (3), a threaded sleeve (4), a support tube (5), a sleeve (6), a second mounting block (7), a first embedded groove (13) and a second embedded groove (14), wherein the support tube (5) is welded on the upper surface of the first mounting block (1), the sleeve (6) is sleeved on the outer wall of the upper end of the support tube (5), the second mounting block (7) is arranged above the sleeve (6), the rotating shaft (3) is welded on the lower surface of the second mounting block (7), the threaded sleeve (4) is rotatably sleeved on the outer wall of the lower end of the support tube (5), the limiting grooves (11) which are symmetrically distributed are formed in the outer walls of two sides of the support tube (5), the limiting strips (10) which are symmetrically distributed are welded on the inner wall of the sleeve (6), the first embedded groove (13) is formed in the upper surface of the sleeve (6), and the second embedded groove (14) is formed in the lower surface of the second mounting block (7), balls (8) distributed in a circular array are arranged between the first embedding groove (13) and the second embedding groove (14).

2. The adjustable rotary hinge for controlling the underground air door of the coal mine according to claim 1, which is characterized in that: and a bearing (2) is embedded in the inner part of the upper surface of the first mounting block (1).

3. The adjustable rotary hinge for controlling the underground air door of the coal mine according to claim 1, which is characterized in that: the first embedding groove (13) and the second embedding groove (14) correspond to each other, and the axes of the first embedding groove (13) and the second embedding groove (14) are coincident with the axis of the rotating shaft (3).

4. The adjustable rotary hinge for controlling the underground air door of the coal mine according to claim 1, which is characterized in that: the limiting strip (10) is inserted in the limiting groove (11) in a sliding mode.

5. The adjustable rotary hinge for controlling the underground air door of the coal mine according to claim 1, which is characterized in that: the outer wall of the supporting tube (5) and the inner wall of the threaded sleeve (4) are both provided with threads (12) which are meshed with each other.

6. The adjustable rotary hinge for controlling the underground air door of the coal mine according to claim 1, which is characterized in that: the outer walls of the balls (8) are sleeved with retainers (9).