CN219548932U - Plugging assembly and casing thereof - Google Patents

Abstract

The utility model discloses a plugging assembly and a casing thereof, and relates to the technical field of engines. Comprises a blocking piece for blocking the hole detector hole; the pressure applying piece is provided with a thread structure, the thread structure is used for being in threaded connection with the hole detector hole, so that the pressure applying piece can apply pressure to the sealing piece, the direction of the pressure is parallel to a first direction, the first direction is parallel to the axial lead of the hole detector hole, and the pressure is directed to the inside of the casing from the outside of the casing. The utility model applies pressure to the plugging piece by using the pressure applying piece with the thread structure so as to enable the plugging piece to be in close contact with the inner wall of the hole detector hole, thereby realizing the plugging of the hole detector hole.

Description

Plugging assembly and casing thereof

Technical Field

The utility model relates to the technical field of engines, in particular to a plugging assembly and a casing thereof.

Background

In order to facilitate the overhaul of the compressor parts in the engine, a hole detector hole is usually formed in a casing of the engine. When the compressor component is overhauled, the hole detector is extended into the casing through the hole detector hole to carry out hole detection on the compressor component. And after the inspection is finished, the hole detector is removed, and the hole detector hole on the casing is plugged by a plugging piece, so that the performance of the engine is ensured.

Currently, most hole probes have a complex hole structure, for example: the patent literature with the authorized bulletin number of CN204255647U and the name of a hole detector plug structure for plugging the casing hole and the patent literature with the authorized bulletin number of CN206513442U and the name of a hole detector hole plugging structure are complex, so that the disassembly and assembly operations during use, repair and maintenance are difficult, and the requirements on technicians are high. In addition, the inside of the plugging structure is provided with a plurality of springs, the springs are difficult to take out and replace when damaged, and only the plugging piece can be replaced integrally, so that the cost is high.

Disclosure of Invention

The utility model aims to provide a plugging assembly and a casing thereof, which are used for solving the technical problems that the existing plugging structure is complex, inconvenient to assemble and disassemble, difficult to replace when damaged and high in cost.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

in a first aspect, the present utility model provides a closure assembly comprising: the plugging piece is used for plugging the hole detector hole; the pressure applying piece is provided with a thread structure, the thread structure is used for being in threaded connection with the hole detector hole, so that the pressure applying piece can apply pressure to the sealing piece, the direction of the pressure is parallel to a first direction, the first direction is parallel to the axial lead of the hole detector hole, and the pressure is directed to the inside of the casing from the outside of the casing.

In one embodiment of the utility model, the blocking member comprises a blocking head, the blocking head has a columnar structure, and the outer diameter of the blocking head decreases.

In one embodiment of the utility model, the closure comprises: a blocking head; the blocking head is of a columnar structure, and one end with the largest outer diameter is a first end of the blocking head; the sealing block is arranged at the first end of the plugging head and is used for being tightly connected with the step surface on the stage of the hole detector hole.

In one embodiment of the present utility model, a surface of the sealing block, which contacts the step surface, is a first surface, and at least one sealing protrusion is formed on the first surface, and the sealing protrusion has an annular structure.

In one embodiment of the utility model, the closure further comprises a sealing gasket for cushioning between the sealing projection and the sealing groove.

In one embodiment of the utility model, the plugging piece comprises a positioning block, a connecting rod, a sealing block and a plugging head which are sequentially connected along a first direction; the pressing piece is provided with a positioning hole penetrating through the pressing piece, and the positioning hole extends along a first direction and is matched with the positioning block.

In one embodiment of the present utility model, the pressing member includes: the first end of the threaded column is used for abutting against the plugging piece, and the threaded structure comprises a first external thread arranged on the threaded column; the rotating part is arranged at the second end of the threaded column and is used for driving the threaded column to rotate in the center, and the rotating shaft rotating in the center is the axial lead of the threaded column.

In one embodiment of the present utility model, the thread structure further includes a threaded sleeve connection, and a second external thread and a first internal thread are formed on the threaded sleeve connection, the second external thread is matched with a second internal thread formed in the hole detector hole, and the first internal thread is matched with the first external thread.

In one embodiment of the utility model, the threaded sleeve connection is a wire thread sleeve; or the threaded sleeve connection comprises: the tubular body, first internal thread set up in the inside lateral wall of tubular body, the second external thread set up in the outside lateral wall of tubular body.

In a second aspect, the present utility model proposes a casing comprising a closure assembly according to any one of the first aspects.

Compared with the prior art, the utility model has the beneficial effects that:

the pressure is applied to the plugging piece by the pressure applying piece with the threaded structure, so that the plugging piece is in close contact with the inner wall of the hole detector hole, the plugging of the hole detector hole is realized, the structure is relatively simple, the operation is convenient, meanwhile, parts such as a spring and the like do not exist in the whole plugging assembly, and the plugging assembly is of split type design, when the plugging assembly is damaged, only the part corresponding to the damage is needed to be replaced, the whole replacement of the plugging assembly is not needed, and the use cost is reduced.

Drawings

FIG. 1 is a cross-sectional view of a plugging assembly according to an embodiment of the present utility model mated with a hole probe;

FIG. 2 is a cross-sectional view of a hole finder hole according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of yet another hole finder hole in accordance with an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of a further alternative plugging assembly according to an embodiment of the present utility model mated with a hole probe hole;

FIG. 5 is a perspective view of the pressure member of FIG. 4;

FIG. 6 is a perspective view of the closure of FIG. 4;

FIG. 7 is a cross-sectional view of still another alternative plugging assembly according to an embodiment of the present utility model mated with a hole finder hole;

FIG. 8 is a perspective view of the pressure member of FIG. 7;

FIG. 9 is a perspective view of the closure of FIG. 7;

FIG. 10 is a cross-sectional view of another alternative plugging assembly according to an embodiment of the present utility model mated with a hole probe;

FIG. 11 is an enlarged view of portion A of FIG. 10;

FIG. 12 is an exploded view of the closure assembly of FIG. 10;

FIG. 13 is a perspective view of a threaded sleeve connection according to an embodiment of the present utility model;

fig. 14 is a perspective view of yet another threaded sleeve connection according to an embodiment of the present utility model.

In the figure: 1. a casing; 11. sealing the groove; 2. a hole finder hole; 21. a threaded section; 22. a stage; 22a, step surfaces; 23. plugging the section; 3. a pressurizing member; 31. a rotating part; 32. a threaded column; 33. positioning holes; 4. a blocking member; 41. a sealing block; 42. a blocking head; 43. a connecting rod; 44. a positioning block; 45. a sealing protrusion; 5. a threaded sleeve connection; 51. a tubular body; 52. a second external thread; 53. a first internal thread; 6. a sealing gasket; 7. a steel wire thread sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the description of the present utility model, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, it should be understood that the dimensions of the various elements shown in the figures are not drawn to actual scale, e.g., the thickness or width of some layers may be exaggerated relative to other layers for ease of description.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined or illustrated in one figure, no further detailed discussion or description thereof will be necessary in the following description of the figures.

Before understanding the present utility model, it should be clear that the plugging assembly proposed by the present utility model is used to plug the hole finder hole 2, and therefore, for plugging assemblies of different shapes or configurations, the hole finder hole 2 should be designed specifically so as to adapt to the corresponding plugging assembly.

Specifically, as shown in fig. 1 to 14, the present utility model provides a technical solution:

a closure assembly, as shown in figures 1, 4, 7 and 10, comprising: a closure member 4 and a pressure application member 3. Wherein the plugging piece 4 is used for plugging the hole detector hole 2; the pressing member 3 is formed with a screw structure for screw-connecting with the hole probe hole 2 so that the pressing member 3 can apply pressure to the blocking member 4 in a direction parallel to the first direction, which is parallel to the axis of the hole probe hole 2 and directed from the outside of the casing 1 to the inside of the casing 1.

From the above, the main function of the plugging member 4 is to plug the hole detector hole 2, so it should be clear that the plugging member 4 may be any member capable of performing the plugging function, and the shape and the configuration thereof are not limited, for example: as shown in fig. 1, the plugging member 4 may include only one plugging head 42, where the plugging head 42 has a columnar structure, and the outer diameter of the plugging head 42 decreases; of course, the blocking member 4 may be an inner plug as proposed in chinese patent CN204255647U, or may be a plug as proposed in chinese patent CN 206513442U.

It should be clear that, as shown in fig. 1, when the plugging head 42 has a columnar structure and the outer diameter of the plugging head 42 decreases, in order to achieve a better plugging function, the hole finder hole 2 may be designed as shown in fig. 2, where the hole finder hole 2 includes a threaded section 21 and a plugging section 23 sequentially arranged along a first direction, where a second internal thread is provided on a side wall of the threaded section 21, and the second internal thread is used to form a threaded connection with the pressing member 3; the inner diameter of the plugging section 23 along the first direction gradually decreases, when the plugging head 42 is subjected to pressure in the first direction, a downward movement trend is generated, and then the plugging head cannot move downward due to the limitation of the plugging section, but the outer side wall of the plugging head 42 can be tightly attached to the inner wall of the plugging section 23, so that plugging is realized.

In another embodiment of the utility model, as shown in fig. 4, 6 and 10, the closure 4 comprises: a stopper 42 and a sealing block 41. Wherein, the plugging head 42 is in a columnar structure, and the end with the largest outer diameter of the plugging head 42 is the first end; and the sealing block 41 is disposed at a first end of the blocking head 42 and is used for forming a tight joint with the step surface 22a on the step section 22, thereby realizing the blocking function. In the present embodiment, the stopper 42 may be the stopper 42 mentioned in the other embodiments described above.

Specifically, the hole finder hole 2 adapted to the above embodiment includes, as shown in fig. 3, a screw thread section 21, a step section 22 and a plugging section 23 which are sequentially arranged in the first direction, wherein the inner diameter of the plugging section 23 is smaller than the inner diameter of the screw thread section 21, and the inner diameter of the plugging section 23 is also smaller than the inner diameter of the step section 22, that is, a step surface 22a is formed inside the hole finder hole 2 between the plugging section 23 and the step section 22, and the step surface 22a is perpendicular to the first direction.

It should be clear that in the present embodiment, when the pressing member 3 applies pressure to the plugging member 4, the plugging function is achieved because the seal block 41 can form a close contact with the stepped surface 22 a. Specifically, the shape and the structure of the seal block 41 are not limited at all as long as it has a function of being able to form a close contact with the step surface 22a, for example: the sealing block 41 may be a circular block or a square block.

In order to enhance the sealing performance between the sealing block 41 and the step surface 22a, in another embodiment of the present utility model, as shown in fig. 10 and 11, a surface of the sealing block 41 contacting the step surface 22a is a first surface, at least one sealing protrusion 45 is formed on the first surface, the sealing protrusion 45 has a ring structure, and sealing grooves 11 corresponding to the sealing protrusions 45 one by one are formed on the step surface 22a, and the sealing protrusions 45 are matched with the corresponding sealing grooves 11. By the design of the seal projection 45 and the seal groove 11, the contact area formed between the seal block 41 and the step surface 22a can be increased, thereby enhancing the sealing performance.

It is to be understood that in the present embodiment, the seal projection 45 may be of any type of annular structure as long as it can achieve an increase in the contact area formed between the seal block 41 and the step surface 22 a. For example: as shown in fig. 11, the longitudinal section of the sealing protrusion 45 may be trapezoidal, with the axis of the sealing protrusion 45 in the longitudinal section; of course, the longitudinal section of the sealing protrusion 45 may be semicircular, rectangular, square, or the like.

In order to further enhance the sealing performance between the sealing block 41 and the step surface 22a, in another embodiment of the present utility model, as shown in fig. 10 and 11, the blocking member 4 further includes: a sealing gasket 6, the sealing gasket 6 being provided for being interposed between the sealing protrusion 45 and the sealing groove 11 to enhance sealing performance.

It should be clear from the background art of the present utility model that, the application scenario of the plugging assembly is mainly a compressor of a gas turbine, an engine, etc., and since the service environment temperature of the compressor is high, when the plugging assembly according to the embodiment of the present utility model is applied to the compressor, a sealing gasket 6 with high temperature resistance needs to be selected, for example: a metal sealing gasket. Of course, in other application scenarios where the ambient temperature is low, other types of sealing gaskets may be selected, such as: rubber sealing gaskets or plastic sealing gaskets.

It should be clear that, in the embodiment of the present utility model, the plugging piece 4 and the pressing piece 3 are designed in a split type, when the plugging piece 4 or the pressing piece 3 is damaged, only the corresponding parts need to be replaced, and the entire plugging assembly does not need to be replaced, so that the cost is saved. In order to enable the pressure exerted by the pressure element 3 on the closure element 4 to be evenly distributed over the closure element 4, i.e. in order to increase the concentricity of the closure element 4 and the pressure element 3 in use, in one embodiment of the utility model, as shown in fig. 8 to 10, the closure element 4 comprises: the positioning block 44, the connecting rod 43, the sealing block 41 and the plugging head 42 are sequentially connected along the first direction; the pressing member 3 is provided with a positioning hole 33 penetrating through the pressing member 3, and the positioning hole 33 extends along the first direction and is matched with the positioning block 44. In use, the positioning block 44 is plugged into the positioning hole 33, thereby realizing positioning and improving concentricity of the plugging piece 4 and the pressing piece 3.

It will be appreciated that in one embodiment of the present utility model, the outer diameters of the positioning block 44 and the connecting rod 43 may be identical, and the positioning block 44 and the connecting rod 43 are a cylindrical body, that is, the cylindrical body is a positioning column. In yet another embodiment of the present utility model, the outer diameter of the positioning block 44 is smaller than the outer diameter of the connecting rod 43, as shown in fig. 7 and 9, which is convenient for the user to pull the closure member 4 out of the hole finder hole 2.

After the closure member 4 in the closure assembly has been introduced, the pressing member 3 in the closure assembly is described below.

As is clear from the above, the pressing member 3 is formed with a threaded structure for forming a threaded connection with the hole finder hole 2, so that the pressing member 3 can apply pressure to the plugging member 4 in a direction parallel to the first direction, which is parallel to the axis of the hole finder hole 2 and directed from the outside of the casing 1 to the inside of the casing 1. It is readily understood that in embodiments of the present utility model, the compression members 3 may be of any shape or configuration.

As shown in fig. 5, in one embodiment of the present utility model, the pressing member 3 includes: a threaded post 32 and a rotating portion 31. The first end of the threaded column 32 is used for forming a collision with the plugging piece 4, the threaded structure comprises a first external thread formed on the threaded column 32, the rotating portion 31 is arranged at the second end of the threaded column 32 and used for driving the threaded column 32 to rotate in the center, and the rotating shaft rotating in the center is the axial lead of the threaded column 32.

It should be clear that in this embodiment, the first external thread of the threaded post 32 may be adapted to the second internal thread formed on the side wall of the threaded section 21, so that when the threaded post 32 rotates, it is able to move along the first direction, thereby implementing the application of pressure to the plugging member 4.

It should be noted that, in the present embodiment, as shown in fig. 5, the rotating portion 31 may have a hexagonal block structure, and a tool such as a wrench may be used to drive the threaded post 32 to perform a central rotation by using the hexagonal block-shaped rotating portion 31. It is easily understood that the rotating portion 31 may be a quadrangular block structure, a pentagonal block structure, a hexagonal groove structure, or a structure similar to various valve handles in other embodiments of the present utility model, which will not be described in detail herein.

Since frequent hole detection of the compressor element by means of a hole detector is required during long-term use, that is to say frequent removal or installation of the plugging assembly from the housing 1 is required. In order to prevent the second internal thread inside the hole finder hole 2 from being damaged due to frequent disassembly and assembly, in another embodiment of the present utility model, as shown in fig. 10, 12 and 13, the screw structure further includes a screw socket connector 5, on which a second external thread 52 and a first internal thread 53 are formed, the second external thread 52 being adapted to the second internal thread provided in the hole finder hole 2, and the first internal thread 53 being adapted to the first external thread provided on the pressing member 3. In the long-time use process, the threaded sleeve connecting piece 5 is not required to be frequently disassembled, and when the threaded sleeve connecting piece 5 is inspected, the pressing piece 3 is only required to be disassembled from the threaded sleeve connecting piece 5, and when the first internal threads 53 of the threaded sleeve connecting piece 5 are damaged, only the threaded sleeve connecting piece 5 is required to be replaced.

In one embodiment of the present utility model, as shown in fig. 13, the threaded sleeve connection 5 includes a tubular body 51, a first internal thread 53 is formed on an inner side wall of the tubular body 51, and a second external thread 52 is formed on an outer side wall of the tubular body 51.

In order to give the threaded sleeve connection 5 a certain elasticity, the threaded sleeve connection 5 can be locked in the hole finder hole 2. In another embodiment of the utility model, as shown in fig. 14, the threaded sleeve connection 5 is a wire thread sleeve 7.

It is clear that the plugging assembly in the embodiment of the utility model can ensure the tightness of plugging the hole detector hole 2, is convenient to install and disassemble, improves the hole detection efficiency of the gas turbine, and saves the detection maintenance cost.

Specifically, during installation, firstly, the plugging piece 4 is installed in the hole detector hole 2 on the casing 1, the outer surface of the plugging piece 4 is in contact with the inner surface of the hole detector hole 2, at the moment, the plugging piece 4 is in small clearance fit with the hole detector hole 2, then the pressure applying piece 3 is connected into the hole detector hole 2 in a threaded manner, the pressure applying piece 3 applies pressure to the plugging piece 4 so as to enable the outer surface of the plugging piece 4 to form interference with the inner surface of the hole detector hole 2, at the moment, the plugging piece 4 is in tight contact fit with the hole detector hole 2, and therefore the sealing purpose is achieved; when the gas turbine hole detector is disassembled, the pressure applying part 3 is only required to be rotationally disassembled, and then the plugging part 4 is taken out, so that the gas turbine hole detector is convenient and quick, the detection efficiency of the gas turbine hole detector can be improved, and the detection and maintenance cost can be saved. In addition, the plugging piece 4 is matched with the hole detector hole 2 on the casing 1, so that the plugging piece 4 is not easy to fall into the casing 1, the safety and the reliability are ensured, and the plugging piece is convenient to repair threads or replace parts if the threads on the pressure applying piece 3 or the threaded sleeve connecting piece 5 are damaged.

In summary, the plugging component of the utility model utilizes the pressure applying piece 3 with the thread structure to apply pressure to the plugging piece 4 so as to enable the plugging piece 4 to be in close contact with the inner wall of the hole detector hole 2, thereby realizing the plugging of the hole detector hole 2.

Having described the proposed closure assembly according to the present utility model, a proposed receiver according to the present utility model is described below, the receiver 1 comprising a closure assembly according to any of the embodiments described above. That is, the plugging assembly of the present utility model is employed in manufacturing.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A closure assembly, comprising:

the plugging piece (4) is used for plugging the hole detector hole (2);

the pressure applying part (3), be formed with the helicitic texture on the pressure applying part (3), the helicitic texture is used for forming threaded connection with hole probe hole (2), so that pressure applying part (3) can be to shutoff piece (4) is exerted pressure, the direction of pressure is parallel to first direction, first direction is parallel to the axial lead of hole probe hole (2) to the inside of receiver (1) is directed to from the outside of receiver (1).

2. The occlusion assembly of claim 1, wherein said occlusion member (4) comprises an occlusion head (42), said occlusion head (42) being of cylindrical configuration and an outer diameter of said occlusion head (42) decreasing.

3. The closure assembly according to claim 1, wherein the closure member (4) comprises:

a stopper (42); the plugging head (42) is in a columnar structure, and one end with the largest outer diameter is a first end of the plugging head;

and the sealing block (41) is arranged at the first end of the plugging head (42) and is used for being tightly connected with the step surface (22 a) on the step section (22) of the hole detector hole.

4. A closure assembly according to claim 3, wherein the surface of the sealing block (41) in contact with the step surface (22 a) is a first surface on which at least one sealing protrusion (45) is formed, the sealing protrusion (45) being of annular configuration.

5. The closure assembly according to claim 4, wherein the closure member (4) further comprises a sealing gasket (6) for being interposed between the sealing protrusion (45) and the sealing groove (11).

6. The closure assembly of any one of claims 1 to 5, wherein,

the plugging piece (4) comprises a positioning block (44), a connecting rod (43), a sealing block (41) and a plugging head (42) which are sequentially connected along a first direction;

the pressing piece (3) is provided with a positioning hole (33) penetrating through the pressing piece (3), and the positioning hole (33) extends along a first direction and is matched with the positioning block (44).

7. The occlusion assembly of any of claims 1 to 5, wherein said pressure applicator (3) comprises:

the first end of the threaded column (32) is used for forming interference with the plugging piece (4), and the threaded structure comprises a first external thread arranged on the threaded column (32);

the rotating part (31) is arranged at the second end of the threaded column (32) and is used for driving the threaded column (32) to rotate in the center, and the rotating shaft rotating in the center is the axial lead of the threaded column (32).

8. The plugging assembly of claim 7, wherein the threaded structure further comprises a threaded sleeve connection (5), a second external thread (52) and a first internal thread (53) are formed on the threaded sleeve connection (5), the second external thread (52) is adapted to a second internal thread provided in the hole finder bore (2), and the first internal thread (53) is adapted to the first external thread.

9. The plugging assembly according to claim 8, wherein the threaded sleeve connection (5) is a wire thread sleeve (7); or alternatively

The threaded sleeve connection (5) comprises: the tubular body (51), the first internal thread (53) is arranged on the inner side wall of the tubular body (51), and the second external thread (52) is arranged on the outer side wall of the tubular body (51).

10. A casing, characterized in that the casing (1) comprises a plugging assembly according to any one of claims 1 to 9.