CN220102369U - Ferrule of pipe joint for pipe connection and matched locking nut thereof - Google Patents
Ferrule of pipe joint for pipe connection and matched locking nut thereof Download PDFInfo
- Publication number
- CN220102369U CN220102369U CN202321539742.2U CN202321539742U CN220102369U CN 220102369 U CN220102369 U CN 220102369U CN 202321539742 U CN202321539742 U CN 202321539742U CN 220102369 U CN220102369 U CN 220102369U
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- China
- Prior art keywords
- main body
- cutting sleeve
- ferrule
- sleeve main
- cutting
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- 210000000078 claw Anatomy 0.000 claims abstract description 17
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model relates to a cutting ferrule of a pipe joint for pipe connection, wherein a cutting ferrule main body is of an annular structure; the upper part of the cutting sleeve main body is provided with a plurality of expansion grooves which are uniformly distributed on the circumference and have upward openings; an inclined convex claw is arranged on the outer circumference of the upper part of the cutting sleeve main body and positioned between each two adjacent expansion grooves, and the diameter of the upper end of the inclined convex claw is larger than that of the lower end of the inclined convex claw; rectangular teeth are arranged on the inner circumference of the upper part of the cutting sleeve main body; a shoulder is arranged on the outer circumference of the lower part of the cutting sleeve main body. The upper end of the clamping sleeve is provided with an inclined convex claw which is used for limiting at the upper end of the lock nut, the lower end of the clamping sleeve is provided with a convex shoulder which is used for limiting at the lower end of the lock nut, and meanwhile, the inner pipe fitting is clamped and connected through rectangular teeth arranged inside. The utility model also relates to a lock nut matched with the cutting sleeve of the pipe joint for pipe connection.
Description
Technical Field
The utility model relates to a cutting ferrule of a pipe joint for pipe connection and a matched locking nut thereof, belonging to the technical field of pipe connection.
Background
The low-temperature water ground radiation heating system is a new heating mode which is widely popularized and used, wherein the water separator-collector of the waterway control component used by the system is a special pipeline connecting pipe fitting which is used for connecting a main pipeline with each branch pipeline and has the functions of diversion and confluence.
The inventor in 2018 12 month 10, application number 201822060570.6, the utility model name is "floor heating cutting sleeve type high-flow full plastic water separator collector", wherein a specific structure of a cutting sleeve 16 of the water separator is disclosed, but a shoulder at the lower end of the cutting sleeve is positioned outside a lock nut, and the cutting sleeve has the defect of easy cracking and breakage.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a cutting ferrule of a pipe joint for pipe connection and a matched locking nut thereof, wherein the upper end of the cutting ferrule is provided with an inclined convex claw for limiting at the upper end of the locking nut, the lower end of the cutting ferrule is provided with a convex shoulder for limiting at the lower end of the locking nut, and meanwhile, the inner pipe fitting is clamped and connected through rectangular teeth arranged inside; the matched lock nut limits the clamping sleeve, so that the clamping function of the clamping sleeve is realized.
In order to solve the problems, the specific technical scheme of the utility model is as follows: the cutting ferrule of the pipe joint for pipe connection, cutting ferrule main body is annular structure; the upper part of the cutting sleeve main body is provided with a plurality of expansion grooves which are uniformly distributed on the circumference and have upward openings; an inclined convex claw is arranged on the outer circumference of the upper part of the cutting sleeve main body and positioned between each two adjacent expansion grooves, and the diameter of the upper end of the inclined convex claw is larger than that of the lower end of the inclined convex claw; rectangular teeth are arranged on the inner circumference of the upper part of the cutting sleeve main body; a shoulder is arranged on the outer circumference of the lower part of the cutting sleeve main body.
Preferably, an arc-shaped curved surface is arranged in the middle of the outer circumference of the cutting sleeve main body, and the diameter of the upper end of the arc-shaped curved surface is larger than that of the lower end of the arc-shaped curved surface.
Preferably, the lower end of the inner circumference of the lock nut main body is provided with a limiting table, and the upper surface of the limiting table is contacted with the bottom surface of the inclined convex claw; an arc-shaped curved surface is arranged on the inner circumference of the hole diameter below the limiting table and is consistent with the shape of the arc-shaped curved surface in the middle of the outer circumference of the clamping sleeve main body; the inner circumference of the lower end of the lock nut main body is provided with a countersunk groove, and the shoulder slides in the countersunk groove.
The cutting ferrule and the matched locking nut of the pipe joint for pipe connection adopt the structure, and have the following advantages:
1. the upper end of the clamping sleeve is provided with the inclined convex claw, so that on one hand, the upper end of the clamping sleeve can be limited, and meanwhile, an inclined transition surface is provided for the downward sliding and pressing of the clamping sleeve;
2. the middle part of the clamping sleeve is provided with an arc-shaped curved surface, so that the clamping sleeve can be matched with the arc-shaped curved surface of the matched lock nut conveniently, and the expansion groove is in an opened state when the clamping sleeve is in a non-working state;
3. the lower end of the clamping sleeve is provided with a convex shoulder, when the clamping sleeve is in a non-working state, the convex shoulder is limited in the countersunk head groove of the locking nut, when the clamping sleeve is in a working state, the clamping sleeve moves downwards, the expansion groove is closed, and the convex shoulder is still left in the countersunk head groove of the locking nut, so that the damage is avoided.
Drawings
Fig. 1 is a front cross-sectional view of a ferrule of a pipe joint for pipe connection.
Fig. 2 is a front cross-sectional view of a coupling cage nut.
Fig. 3 is a schematic view showing a state in which the ferrule of the pipe joint for pipe connection is not operated in the lock nut.
Fig. 4 is a schematic view showing the working state of the ferrule of the pipe joint for pipe connection in the lock nut.
Detailed Description
As shown in fig. 1, a ferrule of a pipe joint for pipe connection, a ferrule main body 1 has an annular structure; a plurality of expansion grooves 12 are arranged at the upper part of the cutting sleeve main body 1, and the expansion grooves 12 are uniformly distributed on the circumference and have upward openings; an inclined convex claw 13 is arranged on the outer circumference of the upper part of the cutting sleeve main body 1 and between each two adjacent expansion grooves 12, and the diameter of the upper end of the inclined convex claw 13 is larger than that of the lower end; rectangular teeth 11 are arranged on the inner circumference of the upper part of the cutting sleeve main body 1, and when the expansion groove is tightly pressed and closed, the rectangular teeth 11 are tightly pressed with the outer wall of the pipe fitting, so that clamping connection between the rectangular teeth 11 and the pipe fitting is realized; a shoulder 14 is provided on the lower outer circumference of the ferrule body 1. An arc-shaped curved surface is arranged in the middle of the outer circumference of the cutting sleeve main body 1, and the diameter of the upper end of the arc-shaped curved surface is larger than that of the lower end.
As shown in fig. 2 to 4, a lock nut used in cooperation with a ferrule of a pipe joint for pipe connection is provided, wherein a limit table 21 is provided at the lower end of the inner circumference of a lock nut main body 2, and the upper surface of the limit table 21 is in contact with the bottom surface of an inclined-surface claw 13; an arc-shaped curved surface 22 is arranged on the inner circumference of the hole diameter below the limiting table 21 and is consistent with the shape of the arc-shaped curved surface in the middle of the outer circumference of the cutting sleeve main body 1; a countersunk groove 23 is provided in the inner circumference of the lower end of the lock nut body 2, in which the shoulder 14 slides.
As shown in fig. 3, when the ferrule of the pipe joint for pipe connection and the lock nut are in a non-operating state, the inclined-plane claw 13 is seated on the upper surface of the limiting table 21, the shoulder 14 is limited at the top of the countersunk groove, the ferrule of the pipe joint for pipe connection is prevented from continuing to move upwards, and the pipe fitting 3 is inserted into the ferrule. As shown in fig. 4, after the lock nut is screwed with the upper part, the top of the ferrule of the pipe joint for pipe connection is pressed by the outside and slides down along the arc-shaped curved surface in the middle of the outer circumference of the ferrule body 1, while the expansion groove 12 is pressed and closed, the rectangular teeth 11 of the inner circumference of the ferrule body 1 are clamped with the outer circumference of the pipe fitting 3, while the shoulder 14 moves down in the countersunk groove, but does not extend out of the lower edge of the lock nut body 2.
Claims (3)
1. The cutting ferrule of coupling for union coupling, its characterized in that: the cutting sleeve main body (1) is of an annular structure; a plurality of expansion grooves (12) are arranged at the upper part of the cutting sleeve main body (1), and the expansion grooves (12) are uniformly distributed on the circumference and have upward openings; an inclined convex claw (13) is arranged on the outer circumference of the upper part of the cutting sleeve main body (1) and positioned between each two adjacent expansion grooves (12), and the diameter of the upper end of the inclined convex claw (13) is larger than that of the lower end; rectangular teeth (11) are arranged on the inner circumference of the upper part of the cutting sleeve main body (1); a convex shoulder (14) is arranged on the outer circumference of the lower part of the cutting sleeve main body (1).
2. The ferrule of a pipe joint for pipe connection according to claim 1, wherein: an arc-shaped curved surface is arranged in the middle of the outer circumference of the cutting sleeve main body (1), and the diameter of the upper end of the arc-shaped curved surface is larger than that of the lower end.
3. A lock nut for use with the ferrule of the pipe fitting for pipe connection of claim 2, characterized in that: the lower end of the inner circumference of the lock nut main body (2) is provided with a limiting table (21), and the upper surface of the limiting table (21) is contacted with the bottom surface of the inclined convex claw (13); an arc-shaped curved surface (22) is arranged on the inner circumference of the hole diameter below the limiting table (21) and is consistent with the shape of the arc-shaped curved surface in the middle of the outer circumference of the cutting sleeve main body (1); the inner circumference of the lower end of the lock nut main body (2) is provided with a countersunk head groove (23), and the shoulder (14) slides in the countersunk head groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321539742.2U CN220102369U (en) | 2023-06-16 | 2023-06-16 | Ferrule of pipe joint for pipe connection and matched locking nut thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321539742.2U CN220102369U (en) | 2023-06-16 | 2023-06-16 | Ferrule of pipe joint for pipe connection and matched locking nut thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220102369U true CN220102369U (en) | 2023-11-28 |
Family
ID=88882759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321539742.2U Active CN220102369U (en) | 2023-06-16 | 2023-06-16 | Ferrule of pipe joint for pipe connection and matched locking nut thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220102369U (en) |
-
2023
- 2023-06-16 CN CN202321539742.2U patent/CN220102369U/en active Active
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| GR01 | Patent grant |