CN212509497U

CN212509497U - Bell and spigot rubber seal ring of fluid conveying pipeline

Info

Publication number: CN212509497U
Application number: CN202020904785.6U
Authority: CN
Inventors: 杨维国
Original assignee: Sichuan Hetong Technology Co ltd
Current assignee: Sichuan Hetong Technology Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-02-09
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses a fluid conveying pipeline socket joint rubber seal specifically does: the sealing ring is divided into an upper part and a lower part from the section of the sealing ring, the two parts are combined to be similar to a T shape, an annular groove is formed in the top surface of the upper part, and a groove is also formed in the outer side surface of the lower part. The utility model discloses the installation is swift convenient, also can strengthen sealed effect simultaneously.

Description

Bell and spigot rubber seal ring of fluid conveying pipeline

Technical Field

The utility model belongs to the fluid conveying pipeline flexible connection field of building materials technique, concretely relates to fluid conveying pipeline socket rubber seal.

Background

The flexible connection mode of the fluid conveying pipeline at the present stage is widely applied, the flexible connection mainly adopts a socket joint type, a rubber ring for sealing is also formed by imitating a rubber ring of a nodular cast iron pipe, and the rubber ring is inconvenient to install, is easy to deform at a socket joint, causes repeated operation and can also influence the service life of the sealing rubber ring.

SUMMERY OF THE UTILITY MODEL

To above-mentioned difficulty, in order to be more to be favorable to fluid conveying pipeline's socket joint installation, guarantee its sealing performance simultaneously, the utility model provides a fluid conveying pipeline socket joint rubber seal.

A rubber seal ring for a socket of a fluid transfer pipe is divided into an upper portion and a lower portion (the two portions are combined to resemble a T shape) when viewed in cross section of the seal ring. The lower part is hexagonal and sequentially comprises in the clockwise direction: the lower part bottom edge is horizontal, the lower part outer side edge I vertical to the lower part bottom edge, the transition edge with the higher inner side, the lower part outer side edge II, the lower part top edge with the higher inner side and the lower part inner side edge forming an obtuse angle with the lower part bottom edge. The upper part is a quadrangle and comprises: an upper portion bottom edge coinciding with the lower portion top edge, an outwardly convex upper portion outer side edge, a horizontal upper portion top edge, and an upper portion inner side edge forming an obtuse angle with the lower portion inner side edge.

The ring surface of the second outer side of the lower part is provided with an arc groove.

The top surface of the top edge of the upper part is provided with an annular groove, and the bottom of the groove is higher than the highest point of the bottom edge of the upper part.

Furthermore, the sealing ring is made of nitrile rubber, so that water cannot generate odor, and water quality cannot be inconsistent with drinking water standards.

Further, the shore hardness of the lower part is 88 ° ± 3 °, and the shore hardness of the upper part is 50 ° ± 5 °.

Further, the elongation of the upper part is more than or equal to 500 percent.

Furthermore, the upper part and the lower part are bonded together, and the breaking strength is more than or equal to 16 MPa.

Compared with the prior art, the utility model beneficial technological effect do:

the utility model discloses the design of section T type makes easy screens when rubber seal installs, and the installation is swift convenient. Meanwhile, the sealing effect can be enhanced.

Drawings

Fig. 1 is a sectional view of a rubber seal ring.

Fig. 2 is a front view of the rubber packing.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model discloses a fluid conveying pipeline socket rubber seal is shown as figure 2, and its section structure is shown as figure 1. The sizes of the rubber sealing rings refer to the following table aiming at fluid conveying pipelines with different pipe diameters.

TABLE 1 rubber seal ring size reference meter (unit: mm)

DN	d1	d2	h1	h2	h3	t1	t2	t3	t4	t5	r
												200	256	254	11	5	22	30	21	12	6	4	4
250	310	308	11	5	22	32	23	12	6	4	4
												300	366	364	12	5.5	24	34	24	14	7	4	4.5
350	420	418	12	5.5	24	34	24	14	7	4	4.5
												400	475	473	13	6	26	38	27	16	8	5	5
450	528	526	13	6	27	38	27	16	8	5	5
												500	583	581	14	6.5	28	42	30	18	9	6	5.5
600	692	690	15	7	30	46	33	20	10	7	6
												700	809	803	20	10	37.5	55	39	24	16	8	7
800	919	913	21	11	39.5	60	43	26	16	9	8
												900	1026	1020	22	12	41.5	65	47	28	18	10	9
1000	1133	1127	23	12	46.5	70	51	30	18	10	9
												1200	1352	1345	27	13.5	47.5	74	54	32	19	10	10
1400	1569	1549	27	15	47.5	80	58	38	23	12	12
												1600	1772	1752	30	15	50	89	65	40	25	12	12

Other requirements of the rubber sealing ring are as follows:

1. the shore hardness of the lower part B was 88 ° ± 3 °, and the shore hardness of the upper part a was 50 ° ± 5 °.

2. The elongation of the upper part A is more than or equal to 500 percent.

3. The breaking strength between the upper part A and the lower part B is more than or equal to 16 MPa.

4. Permanent set < 20%.

5. The aging factor was >0.8,70 ℃ for 144 hours.

6. A test report should be provided for rubber ring performance above the provincial level.

Claims

1. A fluid transfer pipe socket rubber seal characterized in that, from the section of the seal, it is divided into an upper portion and a lower portion, the lower portion is hexagonal and comprises in order in the clockwise direction: the lower part comprises a horizontal lower part bottom edge, a lower part outer side edge I, a transition edge, a lower part outer side edge II, a lower part top edge and a lower part inner side edge, wherein the lower part outer side edge I, the transition edge, the lower part outer side edge II, the lower part top edge and the lower part inner side edge form an obtuse angle;

the upper portion is quadrilateral, including: an upper portion bottom edge coinciding with the lower portion top edge, an outwardly convex upper portion outer side edge, a horizontal upper portion top edge, and an upper portion inner side edge forming an obtuse angle with the lower portion inner side edge;

the ring surface of the second outer side of the lower part is provided with an arc groove;

2. The fluid transfer line socket rubber seal of claim 1, wherein said seal is nitrile rubber.

3. The fluid transfer pipe socket rubber seal according to claim 1, wherein the shore hardness of said lower portion is 88 ° ± 3 ° and the shore hardness of said upper portion is 50 ° ± 5 °.

4. The fluid transfer pipe socket rubber seal according to claim 1, wherein said upper portion has an elongation of 500% or more.

5. The fluid transfer pipe socket rubber seal according to claim 1, wherein said upper and lower portions are bonded together with a breaking strength of 16MPa or more.