CN218992327U - Sealing and blocking structure - Google Patents
Sealing and blocking structure Download PDFInfo
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- CN218992327U CN218992327U CN202222510955.4U CN202222510955U CN218992327U CN 218992327 U CN218992327 U CN 218992327U CN 202222510955 U CN202222510955 U CN 202222510955U CN 218992327 U CN218992327 U CN 218992327U
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- sealing
- pull rod
- shell
- gland
- excircle
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Abstract
The utility model provides a sealing and blocking structure, wherein one end of a pull rod shell is in sealing sliding connection with the inner wall of a sealing gland; the circumference of the pull rod shell is also provided with locking external threads; the internal thread of the compression nut is meshed with the locking external thread; the outer sealing circle of the pull rod is in sealing sliding connection with the inner wall of the pull rod shell; the other end of the pull rod extends out from the other end of the pull rod shell and is rotatably connected with the cam; the pressure spring is sleeved on the pull rod; the two hook pressing plates are rotatably connected with the pull rod; extending the pull rod housing from the open end of the pull rod housing; two ends of the elastic clamp are respectively fixed at the back parts of the two hook pressing plates, and the two hook pressing plates are driven to open. The outdoor working machine has the advantages that the situations of low work efficiency, unsafe outdoor working in a large space and even difficult operation can be effectively solved; the sealing plug is widely suitable for sealing and plugging holes in various environmental states, and is particularly suitable for sealing and plugging holes of large containers or sealing and plugging holes of large containers in high-altitude operation.
Description
Technical Field
The utility model relates to a sealing and blocking structure.
Background
At present, when the airtight test is carried out on a container, the sealing and blocking of the upper hole of the container, especially the sealing and blocking of the airtight test similar to the airtight test of the upper hole of the thin wall of a large-sized pressure container, generally adopts a mode of installing gland bolts at two sides for tensioning. The defects are: when the airtight test pressure of a large pressure container or a high-altitude operation pressure container is detected, the sealing of the hole is blocked, the inner and outer people are required to operate in a matched mode, the work efficiency is low, and the people stand at the high position on the outer side and have potential safety hazards and are difficult to operate. For another example, when the aircraft cabin pressure is detected, the hole is sealed and blocked, the inner and outer people are required to operate in a matched mode, the work efficiency is low, and the people stand at the high position on the outer side and have potential safety hazards and are difficult to operate.
Disclosure of Invention
The sealing and blocking structure provided by the utility model can effectively replace the mode of tightening the sealing and blocking holes of the gland on the two sides by the bolts commonly adopted at present, and can effectively solve the problems of low work efficiency, unsafe outdoor operation in large space and even difficult operation; the sealing and blocking device is widely suitable for sealing and blocking holes in various environmental states, and is particularly suitable for sealing and blocking holes of large containers or sealing and blocking holes of large containers in high-altitude operation; to overcome the disadvantages of the prior art.
The utility model provides a sealing and blocking structure, which comprises: cam 1, pull rod 3, pull rod shell, compression spring 5, compression nut 9, sealing gland 10, two hook pressing plates 11, elastic clamp 13; one end of the pull rod shell is opened and is arranged in the sealing gland 10, and the opening end of the pull rod shell is in sealed sliding connection with the inner wall of the sealing gland 10; the other end of the pull rod shell extends out of the sealing gland 10; the circumference of the pull rod shell is also provided with a locking external thread 6b; the internal thread of the compression nut 9 is meshed with the locking external thread 6b; one end of the pull rod 3 is provided with a pull rod sealing excircle 3a, and the pull rod sealing excircle 3a is matched with the inner diameter of the pull rod shell and is in sealing sliding connection with the inner wall of the pull rod shell; the other end of the pull rod 3 extends out from the other end of the pull rod shell and is rotatably connected with the cam 1; the pressure spring 5 is sleeved on the pull rod 3 and is positioned between the pull rod sealing outer circle step surface 31 and the end cover of the pull rod shell; the two hook pressing plates 11 are symmetrically arranged and are rotatably connected with the pull rod 3, and the connecting position is positioned on the pull rod sealing excircle 3a; the other end of the hook pressing plate 11 is in a hook shape, and extends out of the pull rod shell from the opening end of the pull rod shell; the two ends of the elastic clamp 13 are respectively fixed at the back parts of the two hook pressing plates 11, and the two hook pressing plates 11 are driven to open.
Further, the present utility model provides a sealing plug structure, which may further have the following features: the pull rod housing includes: a cylinder 6 and an end cap 4; one end of the cylinder 6 is opened, and an end cover is fixed at the other end of the cylinder 6.
Further, the present utility model provides a sealing plug structure, which may further have the following features: the sealing gland 10 is provided with two-section step holes, wherein the large end is an end cover sealing hole 1a, and the small end is a limiting hole 1b; one end of the cylinder 6 is provided with a sealing excircle 6a; the sealing outer circle 6a is matched with the end cover sealing hole 1a in size, and the sealing outer circle 6a can move in the end cover sealing hole 1 a.
Further, the present utility model provides a sealing plug structure, which may further have the following features: the circumference of the sealing outer circle 6a is provided with a housing sealing groove, and the housing sealing ring 14 is embedded in the housing sealing groove.
Further, the present utility model provides a sealing plug structure, which may further have the following features: the locking external thread 6b is arranged close to the sealing excircle 6a, and the maximum outer diameter of the locking external thread 6b is smaller than the diameter of the limiting hole 1b; the circumference of the compression nut 9 is provided with four handles 8 which are uniformly distributed on the circumference.
Further, the present utility model provides a sealing plug structure, which may further have the following features: the pull rod 3 and the cam 1 with the handle are connected in a rotatable way through the cam pin 2.
Further, the present utility model provides a sealing plug structure, which may further have the following features: the circumference of the pull rod sealing excircle 3a is provided with a pull rod sealing groove, and a pull rod sealing ring 7 is arranged in the pull rod sealing groove.
Further, the present utility model provides a sealing plug structure, which may further have the following features: one end of the two hook pressing plates 11 is rotatably connected with the position of the pull rod sealing excircle 3a through the hook pressing plate pin 12.
Further, the present utility model provides a sealing plug structure, which may further have the following features: the elastic clamp 13 is in a lambda shape; cam 1 is a lever cam.
Further, the present utility model provides a sealing plug structure, which may further have the following features: the lower end face of the sealing gland 10 is provided with a gland sealing groove, and a gland sealing ring 15 is arranged in the gland sealing groove.
Drawings
FIG. 1 is a schematic view of an initial state of installation of a seal plug structure in an embodiment.
Fig. 2 is a schematic view showing a state of sealing a hole after installation of the seal plug structure in the embodiment.
Fig. 3 is a perspective view of the outer shape of the seal plug structure in the embodiment.
Detailed Description
The utility model is further described below with reference to the drawings and specific embodiments.
As shown in fig. 1, the sealing and blocking structure in this embodiment includes: the cam with the handle comprises a cam with the handle 1, a cam pin 2, a pull rod 3, a pull rod shell, a pressure spring 5, a pull rod sealing ring 7, a compression nut 9, a sealing gland 10, two hook pressing plates 11, a hook pressing plate pin 12, an elastic clamp 13, a shell sealing ring 14 and a gland sealing ring 15.
In this embodiment, the tie rod housing includes: a barrel 6 and an end cap 4. One end of the cylinder 6 is opened, and an end cover is fixed at the other end of the cylinder 6. The end cap 4 has an end cap central aperture.
The open end of the pull rod shell, namely the open end of the cylinder body 6, is arranged in the sealing gland 10, and the open end of the pull rod shell is in sealing sliding connection with the inner wall of the sealing gland 10. The concrete structure is as follows: the sealing gland 10 is provided with two-section step holes, wherein the large end is an end cover sealing hole 1a, and the small end is a limiting hole 1b; one end of the cylinder 6 is provided with a sealing excircle 6a; the sealing outer circle 6a is matched with the end cover sealing hole 1a in size, and the sealing outer circle 6a can move in the end cover sealing hole 1 a. The circumference of the sealing excircle 6a is provided with a shell sealing groove, and a shell sealing ring 14 is embedded in the shell sealing groove to ensure the tightness between the end cover sealing hole 1a of the sealing gland 10 and the sealing excircle 6a of the cylinder 6. In order to ensure tightness between the sealing gland 10 and the part hole panel 16, a gland sealing groove is arranged on the lower end surface of the sealing gland 10, and a gland sealing ring 15 is arranged in the gland sealing groove.
The other end of the pull rod housing, i.e. the end of the cylinder 6 to which the end cap 4 is fixed, extends beyond the sealing gland 10. The outer circle of the pull rod shell, namely the circumference of the cylinder body 6 is also provided with a locking external thread 6b. The internal thread of the compression nut 9 engages with the locking external thread 6b. In this embodiment, the locking external thread 6b is disposed adjacent to the seal outer circle 6a, and the maximum outer diameter of the locking external thread 6b is smaller than the diameter of the limiting hole 1 b. The circumference of the compression nut 9 is provided with four handles 8 which are uniformly distributed on the circumference.
One end of the pull rod 3 is provided with a pull rod sealing excircle 3a, and the pull rod sealing excircle 3a is matched with the inner diameter of the pull rod shell, namely the inner diameter of the cylinder 6 and is in sealing sliding connection with the inner wall of the cylinder 6. The other end of the pull rod 3 protrudes from the central hole of the end cover 4 and is rotatably connected with the cam with handle 1. In this embodiment, the pull rod 3 and the cam with handle 1 are connected in a rotatable manner by the cam pin 2. The pressure spring 5 is sleeved on the pull rod 3 and is positioned between the pull rod sealing excircle 3a and the end cover 4. The circumference of the pull rod sealing excircle 3a is provided with a pull rod sealing groove, and a pull rod sealing ring 7 is arranged in the pull rod sealing groove to ensure the tightness between the pull rod sealing excircle 3a and the inner wall of the cylinder 6.
The two hook pressing plates 11 are symmetrically arranged. Rotatably connected with the pull rod 3. The connecting position is located at the pull rod sealing outer circle 3a. In this embodiment, one end of the two hook pressing plates 11 is rotatably connected with the position where the pull rod sealing outer circle 3a is located through the hook pressing plate pin 12. The other end of the hook pressing plate 11 is in a hook shape, and extends out of the cylinder 6 from the opening end (in the opened groove) of the cylinder 6. The elastic clamp 13 is of a lambda shape, two ends of the elastic clamp are respectively fixed on the back parts of the two hook pressing plates 11, and the two hook pressing plates 11 are driven to open.
The working process of the sealing and blocking structure comprises the following steps:
before the hole of the part is blocked, the cam 1 with the handle is straightened, the pull rod 3 is driven to move upwards relative to the cylinder 6, and the hook pressing plate 11 which is rotatably connected with the other end of the pull rod 3 is driven to elastically shrink into the cylinder 6. At this time, the maximum outer diameter of the two ends of the hook pressing plate 11 is smaller than the hole size of the blocked part.
When the part hole is blocked, the sealing gland 10 is pressed on the part hole panel 16, and the hook pressing plate 11 is initially aligned with the position of the part hole, as shown in fig. 2.
Then the cam with handle 1 is rotated to make it be in transverse state, at this time under the action of pressure spring 5, driving pull rod 3 to move toward opening direction of cylinder 6, hook pressing plate 11 is extended from opening end of cylinder 6 (in opened groove), and is outwards opened under the action of elastic clamp 13, and fastened on two sides of part hole. The compression nut 9 is rotated forward through the handle 8, the whole pull rod shell and the pull rod are driven to move away from the part hole panel 16, and the hook pressing plate 11 is firmly attached to the outer wall of the part hole panel 16; as shown in fig. 1. At the moment, the sealing and plugging of the part hole is realized through the pull rod sealing ring 7, the shell sealing ring 14 and the gland sealing ring 15.
After the airtight experiment is finished, the compression nut 9 is reversely rotated through the handle 8, and the stress is transmitted through the pull rod shell, the cylinder 6, the cam 1, the cam pin 2, the pull rod 3 and the hook pressing plate pin 12, so that the two hook pressing plates 11 are separated from the outer wall of the part hole panel 16. At this time, the cam with handle 1 is rotated to be in a vertical state, and two hook pressing plates 11 are retracted into the cylinder body through the opening end (in the opened groove) of the cylinder body 6 by the cam pin 2, the pull rod 3 and the hook pressing plate pin 12. At this point the device was removed and the air tightness test was completed.
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 sealed stifled structure, its characterized in that: the device comprises a cam (1), a pull rod (3), a pull rod shell, a pressure spring (5), a compression nut (9), a sealing gland (10), two hook pressing plates (11) and an elastic clamp (13);
wherein one end of the pull rod shell is opened and is arranged in the sealing gland (10), and the opening end of the pull rod shell is in sealing sliding connection with the inner wall of the sealing gland (10); the other end of the pull rod shell extends out of the sealing gland (10);
the circumference of the pull rod shell is also provided with a locking external thread (6 b); the internal thread of the compression nut (9) is meshed with the locking external thread (6 b);
one end of the pull rod (3) is provided with a pull rod sealing excircle (3 a), and the pull rod sealing excircle (3 a) is matched with the inner diameter of the pull rod shell and is in sealing sliding connection with the inner wall of the pull rod shell;
the other end of the pull rod (3) extends out from the other end of the pull rod shell and is rotatably connected with the cam (1);
the pressure spring (5) is sleeved on the pull rod (3) and is positioned between the pull rod sealing outer circle step surface (31) and the end cover of the pull rod shell;
the two hook pressing plates (11) are symmetrically arranged and are rotatably connected with the pull rod (3);
the other end of the hook pressing plate (11) is in a hook shape, and extends out of the pull rod shell from the opening end of the pull rod shell;
the two ends of the elastic clamp (13) are respectively fixed at the back parts of the two hook pressing plates (11) to drive the two hook pressing plates (11) to open.
2. The seal plug structure of claim 1, wherein:
wherein, the pull rod shell includes: a cylinder (6) and an end cover (4);
one end of the cylinder body (6) is opened, and the end cover is fixed at the other end of the cylinder body (6).
3. The seal plug structure of claim 2, wherein:
the sealing gland (10) is provided with a two-section step hole, wherein the large end is an end cover sealing hole (1 a), and the small end is a limiting hole (1 b);
one end of the cylinder (6) is provided with a sealing excircle (6 a); the size of the sealing excircle (6 a) is matched with that of the end cover sealing hole (1 a), and the sealing excircle (6 a) can move in the end cover sealing hole (1 a).
4. A seal plug structure as defined in claim 3, wherein:
the circumference of the sealing excircle (6 a) is provided with a shell sealing groove, and a shell sealing ring (14) is embedded in the shell sealing groove.
5. A seal plug structure as defined in claim 3, wherein:
wherein the locking external thread (6 b) is arranged close to the sealing excircle (6 a), and the maximum outer diameter of the locking external thread (6 b) is smaller than the diameter of the limiting hole (1 b);
the circumference of the compression nut (9) is provided with four handles (8) which are uniformly distributed on the circumference.
6. The seal plug structure of claim 1, wherein:
wherein, the pull rod (3) and the cam (1) are connected in a rotatable way through a cam pin (2).
7. The seal plug structure of claim 1, wherein:
the draw rod sealing ring (7) is also included;
the circumference of the pull rod sealing excircle (3 a) is provided with a pull rod sealing groove, and the pull rod sealing ring (7) is arranged in the pull rod sealing groove.
8. The seal plug structure of claim 1, wherein:
one end of each of the two hook pressing plates (11) is rotatably connected with the position of the pull rod sealing excircle (3 a) through the hook pressing plate pin (12).
9. The seal plug structure of claim 1, wherein:
wherein the elastic clamp (13) is in a lambda shape;
the cam (1) is a cam with a handle.
10. The seal plug structure according to any one of claims 1-9, wherein:
the lower end face of the sealing gland (10) is provided with a gland sealing groove, and a gland sealing ring (15) is arranged in the gland sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222510955.4U CN218992327U (en) | 2022-09-22 | 2022-09-22 | Sealing and blocking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222510955.4U CN218992327U (en) | 2022-09-22 | 2022-09-22 | Sealing and blocking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218992327U true CN218992327U (en) | 2023-05-09 |
Family
ID=86194997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222510955.4U Active CN218992327U (en) | 2022-09-22 | 2022-09-22 | Sealing and blocking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218992327U (en) |
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2022
- 2022-09-22 CN CN202222510955.4U patent/CN218992327U/en active Active
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