CN216910249U

CN216910249U - Double-layer container end socket with good sealing performance

Info

Publication number: CN216910249U
Application number: CN202122870698.0U
Authority: CN
Inventors: 唐小平; 王小云; 冯黎明
Original assignee: Yixing Hengan Head Co ltd
Current assignee: Yixing Hengan Head Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-07-08
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses a double-layer container end socket with good sealing performance, which belongs to the field of end sockets and comprises an outer-layer end socket and an elastic end socket; a groove is formed in the outer-layer end socket, and is formed in the upper portion of the inner thread and used for arranging a sealing ring; the groove comprises a transverse groove and an inclined groove; the lower part of the sealing ring is provided with an inclined tongue jaw part and a vertical extending end, the tongue jaw part is embedded into the groove, and the extending end is exposed; the gap between the extending end and the jaw part is used for sealing the connection part of the internal thread of the outer-layer seal head and the external thread of the container; the upper part of the sealing ring is provided with a bulge and an arc inner groove to form an existing lip-shaped sealing ring structure. The utility model solves the problem of poor sealing performance of the connecting part of the inner thread of the outer layer end enclosure and the container of the existing double-layer container end enclosure, and has the advantages of a lip-shaped sealing ring, and the sealing performance is better when the pressure is higher.

Description

Double-layer container end socket with good sealing performance

Technical Field

The utility model belongs to the technical field of end sockets, and particularly relates to a double-layer container end socket with good sealing performance.

Background

In the prior art, a closed end enclosure device is required to be arranged in chemical equipment such as a reaction kettle, a heat exchanger and the like, and the existing end enclosure device is required to have corrosion resistance, sealing performance and pressure resistance; particularly, in the existing reaction kettle, heat exchanger and other equipment, the interior of the cavity must have better pressure resistance due to various chemical reactions and expansion with heat and contraction with cold; however, in the conventional apparatus, the space of the inner container is fixed, the mounting part of the end socket is rigidly connected and mounted under the requirement of sealing performance, and if a buffer area is arranged, the sealing performance is reduced, so that a certain buffer space is not provided in most containers, and the end socket is easily damaged when the pressure in the containers is high, and serious accidents are possibly caused.

The applicant applies for a utility model 'a double-layer container end closure' published (announced) number in 12/31/2020: CN 214358042U. Comprises an outer-layer end enclosure and an elastic end enclosure arranged in the outer-layer end enclosure; the inner thread at the bottom of the outer seal head is connected with the container thread. Whole device not only increases the leakproofness of head and when the head installation back, if the inside pressure variation that takes place of container, can directly take place deformation to outside roof pressure elasticity portion, plays cushioning effect, effectual increase compressive capacity. But in the technical scheme, the outer-layer end enclosure is connected with the container through threads, and the sealing performance of the threaded connection part cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

The technical problems solved by the utility model are as follows: in the existing double-layer container end socket, the sealing property of the joint of the internal thread of the outer layer end socket and the container is poor.

The technical scheme is as follows: in order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

a double-layer container end socket with good sealing performance comprises an outer layer end socket and an elastic end socket arranged in the outer layer end socket; the bottom of the outer-layer end socket is provided with an opening, and an internal thread is arranged at the opening; the outer diameter of the elastic seal head is matched with the inner diameter of the outer seal head, and the elastic seal head is embedded in the outer seal head and is arranged above the inner thread; one circle of the outer side of the elastic seal head is set to be a horizontal rigid end part, and the middle part of the elastic seal head is set to be a deformable elastic part;

a groove is formed in the outer-layer end socket, and is formed in the upper portion of the inner thread and used for arranging a sealing ring; the groove comprises a transverse groove and an inclined groove;

the lower part of the sealing ring is provided with an inclined tongue jaw part and a vertical extending end, the tongue jaw part is embedded into the groove, and the extending end is exposed; the gap between the extension end and the jaw part is used for sealing the connection part of the internal thread of the outer-layer seal head and the external thread of the container; the upper part of the sealing ring is provided with a convex part and an arc inner groove.

Furthermore, the lower end of the rigid end part is provided with a step surface, and the upper end of the step surface is embedded in the outer-layer end enclosure; the upper part of the sealing ring is embedded between the step surface and the outer-layer end enclosure.

Further, the bottom of the inclined groove is arc-shaped.

Further, the inner corners of the transverse grooves are rounded corners; the transverse groove and the inner wall of the outer-layer end enclosure are provided with oblique angles.

Further, the inclination angle of the inclined groove relative to the vertical direction is 30-60 degrees.

Furthermore, the upper end surface of the rigid end part is correspondingly provided with a compression spring, and the upper end of the compression spring is correspondingly fixed in the outer-layer end socket.

Furthermore, a connecting rod is further installed on the upper end face of the middle part of the elastic part, an air hole is further formed in the middle part of the upper end of the outer seal head, the connecting rod extends out of the air hole correspondingly, an external thread is further arranged on the upper end of the connecting rod, a positioning plate is detachably installed through the external thread, positioning holes corresponding to the positions of the positioning plate and the upper end part of the outer seal head are further formed in the positioning holes, a detachable positioning piece is correspondingly installed in each positioning hole, and the positioning plate and the connecting rod can be correspondingly fixed through the installation positioning piece.

Has the advantages that: compared with the prior art, the utility model has the following advantages:

1. the lower part of the sealing ring in the device is provided with a jaw part and a protruding end which are used for sealing the joint of the internal thread and the external thread of the container, so that the joint of the seal head and the container is sealed. The technical problem of current sealing washer can't seal the head and its container junction is solved.

2. The upper part of the sealing ring is similar to the existing lip-shaped sealing ring and is embedded in the lower part of the elastic sealing head, the sealing ring has the advantages of the lip-shaped sealing ring, the higher the pressure is, the better the sealing performance is, and the compensation capability after abrasion is realized. The problem of traditional sealing pressure higher the more poor sealing effect is solved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a sectional view at the groove 4;

fig. 3 is a structural view of the seal ring 5;

fig. 4 is a schematic view of the structure of the gasket 5 after installation.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific examples, which are carried out on the premise of the technical solution of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1, the application discloses a double-layer container end socket with good sealing performance, which comprises an outer-layer end socket 1 and an elastic end socket 2 arranged in the outer-layer end socket 1; the bottom of the outer-layer end socket 1 is provided with an opening, and an internal thread 3 is arranged at the opening; the outer diameter of the elastic seal head 2 is matched with the inner diameter of the outer seal head 1, the elastic seal head 2 is embedded in the outer seal head 1 and is arranged above the inner thread 3, a circle of the outer side of the elastic seal head 2 is arranged to be a horizontal rigid end part 201, a compression spring 6 is correspondingly arranged on the upper end face of the rigid end part 201, and the upper end of the compression spring 6 is correspondingly fixed in the outer seal head 1; the middle part of the elastic sealing head 2 is provided with a deformable elastic part 202.

As shown in fig. 2 and 3, the inner part of the outer shell head 1 is provided with a groove 4, the groove 4 is arranged at the upper part of the inner thread 3 and is used for installing a sealing ring 5, and the groove 4 comprises a transverse groove 401 and an inclined groove 402. The bottom of the inclined groove 402 is arc-shaped for easy processing. The inner corners of the transverse grooves 401 are rounded to enhance the stress. The transverse groove 401 and the inner wall of the outer-layer end enclosure 1 are provided with oblique angles, so that the cutter can be withdrawn conveniently, and the stress is increased.

The angle of inclination of the angled slot 402 relative to the vertical should be between 30 deg. and 60 deg..

The sealing ring 5 is shaped like an H, the lower part of the sealing ring is provided with an inclined tongue jaw 501 and a vertical extending end 502, the tongue jaw 501 is embedded into the groove 4, and the extending end 502 is exposed. The gap between the protruding end 502 and the tongue jaw 501 is used for sealing the connection between the internal thread 3 of the outer shell seal head 1 and the external thread of the container. The upper part of the sealing ring 5 is provided with a convex part 503 and a circular arc inner groove 504, which are similar to the prior lip-shaped sealing ring.

As shown in fig. 4, a step surface 2011 is provided at the lower end of the rigid end 201, the upper end of the step surface 2011 is embedded in the outer shell head 1, and the upper portion of the seal ring 5 is embedded between the step surface 2011 and the outer shell head 1.

The sealing ring 5 upper portion of this application has the advantage of lip sealing circle. When high-pressure gas moves upwards, the gas enters the arc inner groove 504, so that the two sides of the arc inner groove 504 are stressed in a balanced manner, the two sides of the protruding portion 503 are tightly attached to the sealing surface, the higher the pressure is, the tighter the two sides of the protruding portion 503 are attached to, and the arc inner groove 504 has certain compensation capacity after being worn.

The lower part of the sealing ring in the device is provided with a jaw part and a protruding end which are used for sealing the joint of the internal thread and the external thread of the container, so that the joint of the seal head and the container is sealed. The upper part of the sealing ring is similar to the existing lip-shaped sealing ring and is embedded in the lower part of the elastic sealing head, the sealing ring has the advantages of the lip-shaped sealing ring, the higher the pressure is, the better the sealing performance is, and the compensation capability after abrasion is realized.

A connecting rod 8 is further installed on the upper end face of the middle portion of the elastic portion 202, an air hole 9 is further formed in the middle portion of the upper end of the outer shell cover 1, the connecting rod 8 correspondingly extends out of the air hole 9, external threads 10 are further arranged on the upper end of the connecting rod 8, a positioning plate 11 is detachably installed through the external threads 10, positioning holes corresponding to the positions of the positioning plate 11 and the upper end portion of the outer shell cover 1 are further formed in the positioning holes, a detachable positioning piece 12 is correspondingly installed in each positioning hole, and the positioning plate 11 and the connecting rod 8 can be correspondingly fixed through the installation positioning piece 12.

A buffer spring 13 is also arranged on the rod body between the elastic steel plate and the outer-layer end enclosure 1 in the connecting rod 8; the diameter of the outer ring of the buffer spring 13 is larger than that of the air hole 9;

a threaded hole matched with the external thread 10 at the upper end of the connecting rod 8 is formed in the positioning plate 11; the positioning holes 12 on the positioning plate 11 are uniformly arranged at intervals; the positioning hole 12 at the upper end face of the outer-layer end socket 1 is correspondingly arranged; in the original state of the hold-down spring 6, the elastic seal head 2 is arranged in the middle of the outer seal head 1.

After the elastic end socket inside the device is deformed, the deformation of the elastic end socket cannot be developed freely, a connecting rod is arranged in the middle of the elastic end socket, the connecting rod extends out of an air hole and is correspondingly provided with a positioning plate through an external thread, the position of the positioning plate can be adjusted up and down, and the positions of the positioning plate and the connecting rod are fixed through positioning holes formed in the upper ends of the positioning plate and the outer-layer end socket and positioning pieces arranged on the positioning plate; the position of the elastic end socket inside the device is correspondingly fixed, the elastic part is supported by the connecting rod, the accidental accidents caused by too large deformation of the elastic part are prevented, the stability and the reasonability of the whole structure can be improved, and the whole device is safer.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and amendments can be made without departing from the principle of the present invention, and these modifications and amendments should also be considered as the protection scope of the present invention.

Claims

1. A double-layer container end socket with good sealing performance comprises an outer-layer end socket (1) and an elastic end socket (2) arranged in the outer-layer end socket (1); the bottom of the outer-layer end enclosure (1) is provided with an opening, and an internal thread (3) is arranged at the opening; the outer diameter of the elastic seal head (2) is matched with the inner diameter of the outer seal head (1), and the elastic seal head (2) is embedded in the outer seal head (1) and is arranged above the inner thread (3); a circle of the outer side of the elastic seal head (2) is provided with a horizontal rigid end part (201), and the middle part of the elastic seal head is provided with a deformable elastic part (202);

the method is characterized in that: a groove (4) is formed in the outer-layer end socket (1), and the groove (4) is formed in the upper portion of the inner thread (3) and used for arranging a sealing ring (5); the groove (4) comprises a transverse groove (401) and an inclined groove (402);

the lower part of the sealing ring (5) is provided with an inclined tongue jaw part (501) and a vertical extending end (502), the tongue jaw part (501) is embedded into the groove (4), and the extending end (502) is exposed; the gap between the extension end (502) and the jaw part (501) is used for sealing the connection part of the internal thread (3) of the outer-layer seal head (1) and the external thread of the container; the upper part of the sealing ring (5) is provided with a convex part (503) and an arc inner groove (504).

2. A double-layer container closure head with good sealing performance according to claim 1, wherein: the lower end of the rigid end part (201) is provided with a step surface (2011), and the upper end of the step surface (2011) is embedded in the outer-layer end socket (1); the upper part of the sealing ring (5) is embedded between the step surface (2011) and the outer-layer seal head (1).

3. A double-layer container closure head with good sealing performance according to claim 1, wherein: the bottom of the inclined groove (402) is arc-shaped.

4. A double-layer container closure head with good sealing performance according to claim 3, wherein: the inner angle of the transverse groove (401) is a fillet; the transverse groove (401) and the inner wall of the outer-layer end socket (1) are provided with oblique angles.

5. A double-layer container closure with good sealing performance according to claim 4, wherein: the inclined groove (402) has an inclination angle of 30-60 degrees relative to the vertical direction.

6. A double-layer container closure head with good sealing performance according to claim 1, wherein: the upper end face of the rigid end part (201) is correspondingly provided with a compression spring (6), and the upper end of the compression spring (6) is correspondingly fixed in the outer-layer end enclosure (1).

7. A double-layer container closure head with good sealing performance according to claim 1, wherein: a connecting rod (8) is still installed to elasticity portion (202) middle part up end, and the upper end middle part department of outer head (1) still is provided with gas pocket (9), connecting rod (8) are corresponding stretches out the outside from gas pocket (9), the upper end of connecting rod (8) still is provided with external screw thread (10), and through this external screw thread (10) still detachable install locating plate (11), and this locating plate (11) still all are provided with the locating hole that the position corresponds with the upper end position department of outer head (1), and corresponding detachable setting element (12) of installing again in the locating hole, can be corresponding fixed locating plate (11) and connecting rod (8) through installation setting element (12).