CN222458706U - A compression type conversion copper joint - Google Patents

Abstract

A compression-type conversion copper joint includes a copper joint body, the copper joint body has an insertion end and a compression-type socket end, the insertion end is connected to the compression-type socket end through a through flow channel; the inner wall of the compression-type socket end has a thickened stepped end face, an annular groove is provided on the stepped end face, a magnet seat is installed in the annular groove, the magnet seat has a plurality of magnets, and the plurality of magnets are arranged in a Halbach array, so that the inner side of the magnet seat forms a strong magnetic side, and the outer side forms a weak magnetic side. In the utility model, the plurality of magnets interact with the first-end external pipe fitting, so that the first-end external pipe fitting is adsorbed on the stepped end face by magnetic attraction, providing a certain limit and anti-slip effect during the compression process, being able to resist a certain external force impact, and ensuring the relative position stability between the first-end external pipe fitting and the copper joint body.

Description

Clamping and pressing type conversion copper joint

Technical Field

The utility model relates to the technical field of products of metal pipe connectors, in particular to a clamping and pressing type conversion copper connector.

Background

The pipeline system comprises parts such as a pipeline, a pipeline connector and the like, and is a device system for conveying fluids such as gas, liquid and the like, which is formed by connecting the parts in sequence, and when the pipeline system works normally, the fluid flows from a high-pressure position to a low-pressure position of the pipeline after being pressurized by pressurizing equipment such as a blower, a compressor, a pump, a boiler and the like, and can also be conveyed by utilizing the pressure or gravity of the fluid. The pipeline system has wide application range and can be used for water supply, water drainage, heat supply, gas supply, long-distance petroleum and natural gas transportation, agricultural irrigation, hydraulic engineering and the like, and compared with the traditional threaded connection mode, the clamping and pressing type connection mode can greatly improve the connection efficiency.

The card-pressing pipe joint is used in the mode that 1, firstly, the two ends of a pipeline to be connected are cut and leveled, and any impurities and dirt are removed, so that good sealing is ensured. 2. The pipe is inserted, namely the pipe end to be connected is inserted into the joint of the clamping and pressing type pipe joint, so that the insertion depth is ensured to be in accordance with the specification of the manufacturer. Typically, the connector will have a marking or indicia to indicate the depth of insertion. 3. And in the clamping and pressing process, a special clamping and pressing tool is used for applying pressure to the joint at a proper position. This will result in the clamping ring of the joint being tightly secured to the pipe, ensuring a tight seal and connection. 4. Checking connection, namely carefully checking whether the connection is firm and correct after the clamping and pressing process is completed. Ensure that there is no loosening or migration and check for any signs of leakage.

In the prior art example 1 of the clamping and pressing type pipe connector, refer to patent document CN202228815U, a clamping and pressing type pipe body constant diameter butt joint is disclosed, the clamping and pressing type pipe connector comprises a connector body, clamping and pressing connectors are respectively arranged at two ends of the connector body, and an O-shaped sealing ring groove is arranged at the tail end of the clamping and pressing connector. According to the utility model, the clamping and pressing joint is adopted at the butt joint, and the O-shaped sealing ring groove is arranged, so that the butt joint installation of the pipeline is more convenient, the tightness is good, and the leakage is not easy to damage.

Referring to prior art example 2 of a card-type pipe joint, see patent document CN205065100U, a card-type anti-leakage connecting piece and a heating system are provided, the card-type anti-leakage connecting piece includes a copper joint, a sealing ring and a warning ring, an annular protruding strip and an annular clamping groove are formed on the outer peripheral wall of one end portion of the copper joint, an annular groove is formed in the annular protruding strip on the inner peripheral wall of one end portion of the copper joint, the sealing ring is located in the annular groove, the annular clamping groove is located on the outer side of the annular protruding strip, the warning ring is clamped in the annular clamping groove, and an external thread structure or an internal thread structure is arranged on the other end portion of the copper joint. The connection of the copper pipes is conveniently carried out through the clamping and pressing type anti-leakage connecting piece, the copper pipe connection process is simplified, and the connection quality is improved so as to improve the reliability of a heating system.

It can be inferred from the combination of technical examples 1 and 2 that in the existing products, an effective limiting and restraining structure is lacking between the external pipe fitting at the second end and the pipe fitting body of the clamping and pressing type before the clamping and pressing operation. Therefore, an external force is applied in the clamping and pressing process, the second end external pipe fitting and the clamping and pressing type pipe fitting body are easy to generate relative displacement, so that the stress position of the clamping and pressing is offset, the contact area between the sealing ring and the second end external pipe fitting and the clamping and pressing type pipe fitting is unstable, the assembly precision is reduced, and the defects of poor sealing and easy leakage in the using process are caused.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a clamping and pressing type conversion copper joint

The technical scheme for solving the technical problems is that the clamping and pressing type conversion copper connector comprises a copper connector main body, wherein the copper connector main body is provided with an insertion end and a clamping and pressing type spigot end, and the insertion end is communicated with the clamping and pressing type spigot end through a through runner;

The inner wall of the clamping and pressing type spigot-and-socket end is provided with a thickened stepped end face, the stepped end face is provided with an annular groove, a magnet seat is arranged in the annular groove, a plurality of magnets are arranged on the magnet seat and are arranged in a halbach array, so that the inner side of the magnet seat forms a strong magnetic force side, and the outer side of the magnet seat forms a weak magnetic force side.

The seal groove is preferably arranged, a circle of outwardly concave seal groove is rolled on the inner wall of the clamping and pressing type spigot-and-socket end, and a built-in seal ring is arranged in the seal groove.

The preferable setting of the built-in sealing ring is that the built-in sealing ring is an ethylene propylene diene monomer built-in sealing ring, the hardness of the ethylene propylene diene monomer built-in sealing ring is more than or equal to 55HD, and the tensile strength is more than or equal to 10MPa.

Correspondingly, a circle of clamping flange is formed at the position, corresponding to the sealing groove, of the outer wall of the clamping spigot-and-socket end.

The preferable structure of the clamping structure is that the outer wall of the clamping spigot-and-socket end is also provided with a plurality of positioning pits which are annularly and uniformly distributed to form an annular positioning lattice.

Further, the annular positioning dot matrix is provided with 2 circles and is symmetrically arranged at two sides of the clamping flange.

In a preferred embodiment of the present utility model, the magnet holder has a disc shape, and the magnets are circumferentially arranged on an end surface of the magnet holder facing the insertion direction of the first end external pipe fitting.

In the utility model, the insertion end is preferably provided with a first guide flange, a second guide flange, an equal diameter flange, a first stop flange and a second stop flange which are sequentially arranged on the outer wall of the insertion end in a protruding manner from front to back;

The first guide flange and the second guide flange are provided with wedge-shaped guide end faces which gradually expand from front to back, and the constant diameter flange is provided with a straight end face.

The maximum radial dimension of the second stop flange is greater than the maximum radial dimension of the first stop flange, which is greater than the maximum radial dimension of the constant diameter flange.

Further, an arc groove is formed between the first stop flange and the second stop flange, and an external sealing ring is arranged in the arc groove.

In the utility model, an indication area is etched on the outer wall of the clamping and pressing spigot-and-socket end by laser, the indication area is positioned beside the clamping and pressing flange, and the indication area is marked with a clamping pressure value.

The utility model has the beneficial effects that:

1. The magnets and the first end external pipe fitting interact to enable the first end external pipe fitting to be adsorbed on the step end face through magnetic attraction, a certain limiting anti-drop effect is provided in the clamping and pressing process, a certain external force impact can be resisted, and the stability of the relative positions of the first end external pipe fitting and the copper joint body is ensured. Therefore, the second end external pipe fitting and the clamping and pressing type pipe fitting body are prevented from being relatively displaced, the contact area between the sealing ring and the second end external pipe fitting and the contact area between the sealing ring and the clamping and pressing type pipe fitting are more stable, the assembly precision is improved, and the sealing is more reliable, so that the leakage probability in the use process is greatly reduced.

2. The magnets are arranged in a halbach array, and the magnetic field intensity at the other side is greatly improved due to the mutual superposition of the parallel magnetic field and the radial magnetic field after the halbach array magnets are decomposed, so that the magnetic line distribution structure of the conventional magnets is broken, and the strong magnetic force side and the weak magnetic force side are formed. Therefore, magnets of the same model, material and size can generate a larger magnetic field in a local area due to the change of arrangement modes, so that larger magnetic attraction force is generated on the first end external pipe fitting inserted into the magnets, and obvious magnetic connection and limiting effects are achieved.

Drawings

Fig. 1 is a schematic structural view of a copper joint body according to a first embodiment.

Fig. 2 is a semi-sectional view of a copper connector body in accordance with a first embodiment.

Fig. 3 is a structural comparison of the copper connector body before and after crimping.

Fig. 4 is a comparative cross-sectional view of the snap flange before and after snap.

Fig. 5 is a semi-sectional view of the second end fitting after being nested into the insertion end.

FIG. 6 is a half cross-sectional view of the first end extension tube inserted into the snap-fit socket and after snap-fit.

Fig. 7 is a schematic structural view and a partially enlarged schematic view of a copper joint body in a second embodiment.

Fig. 8 is a schematic view of a crimping tool.

Fig. 9 is a schematic diagram showing the distribution of magnets in a magnet holder in the first embodiment.

In the figure, 1, a copper joint main body, 101, a through runner, 102, an indication area, 2, a clamping and pressing type spigot end, 21, a stepped end face, 211, an annular groove, 22, a sealing groove, 221, an internal sealing ring, 23, a clamping and pressing flange, 24, an annular positioning lattice, 241, a positioning concave point, 3, an insertion end, 31, a first guiding flange, 32, a second guiding flange, 33, an equal diameter flange, 34, a first stopping flange, 35, a second stopping flange, 36, an arc groove, 361, an external sealing ring, 301, a wedge-shaped guiding end face, 302, a straight end face, 4, a magnet seat, 41, a magnet, 401, a strong magnetic force side, 402, a weak magnetic force side, 42, an end face in the insertion direction of an external pipe fitting towards the first end, 5, an external pipe fitting at the first end, 6, a clamping and pressing tool, 61, a positioning convex point, 7, an external pipe fitting at the second end, 71, a small diameter pipe wall, 72 and a large diameter pipe wall.

Detailed Description

The utility model will be further described with reference to the drawings and specific examples. It should be noted that the examples are only specific to the present utility model and are for the purpose of better understanding of the technical solutions of the present utility model to those skilled in the art, and should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, as the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used for convenience of description and simplicity of description, only as to the orientation or positional relationship shown in the drawings, and not as an indication or suggestion that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" should be interpreted broadly, as referring to, for example, a fixed connection, a removable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediary, or a communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases to those skilled in the art.

Referring to fig. 1-9, a clamping and pressing type conversion copper connector comprises a copper connector main body 1, wherein the copper connector main body 1 is provided with an insertion end 3 and a clamping and pressing type spigot end 2, and the insertion end 3 is communicated with the clamping and pressing type spigot end 2 through a through flow channel 101;

The inner wall of the clamping and pressing type spigot-and-socket end 2 is provided with a thickened stepped end face 21, the stepped end face 21 is provided with an annular groove 211, a magnet seat 4 is arranged in the annular groove 211, the magnet seat 4 is provided with a plurality of magnets 41, and the magnets 41 are arranged in a halbach array, so that the inner side of the magnet seat 4 forms a strong magnetic force side 401, and the outer side of the magnet seat 4 forms a weak magnetic force side 402.

The above description is a basic structure of the present utility model, and is different from the prior art in that the stepped end surface 21 is formed in the copper joint body 1, the annular groove 211 is formed in the stepped end surface 21, and the magnet 41 is mounted in the annular groove 211 together by the magnet holder 4.

The utility model is used in the mode that the first end external pipe fitting 5 to be connected is inserted into the through flow channel 101 through the clamping and pressing type spigot end 2, when the first end external pipe fitting 5 is inserted into the through flow channel 101, the first end external pipe fitting 5 is propped against the stepped end face 21, and meanwhile, the plurality of magnets 41 interact with the first end external pipe fitting 5, so that the first end external pipe fitting 5 is adsorbed on the stepped end face 21 through magnetic attraction, a certain limiting and anti-falling effect is provided in the clamping and pressing process, a certain external force impact can be resisted, and the relative position stability of the first end external pipe fitting 5 and the copper joint body is ensured. Thereby, prevent that second end external pipe fitting 7 and card pressure formula pipe joint body from taking place relative displacement for sealing washer and the contact area of second end external pipe fitting 7 and card pressure formula pipe joint are more stable, improve assembly precision, and then exist and make sealed more reliable, the probability that appears leaking in the greatly reduced use.

It should be noted that, the magnets 41 in the present application are arranged in halbach array, and the parallel magnetic field and the radial magnetic field after the halbach array magnets 41 are decomposed are mutually overlapped, so that the magnetic field strength at the other side is greatly improved, and the magnetic force line distribution structure of the conventional magnets is broken, thereby forming the strong magnetic force side 401 and the weak magnetic force side 402. Therefore, the magnets 41 with the same model, material and size can generate a larger magnetic field in a local area due to the change of arrangement mode, so that a larger magnetic attraction force is generated on the first end external pipe fitting 5 inserted into the magnetic field, and the magnetic connection and the limiting effect are more obvious.

When the external pipe fitting 5 is detached, a user holds the external pipe fitting 5 with hands or clamps the external pipe fitting 5 with tools, applies external force to overcome the magnetic attraction force, and can separate the external pipe fitting 5 from the magnet 41 and take out the external pipe fitting 5 smoothly.

It should be noted that, the inner wall of the press-fit socket 2 is rolled with a circle of seal grooves 22 recessed outwards. During machining, the copper joint body 1 is placed on a machine tool to enable the copper joint body 1 to rotate, then the machining rolling tool stretches into the through runner 101 to reach a specified depth and then moves outwards, so that the machining rolling tool is in contact with the straight inner wall of the clamping and pressing type spigot-and-socket end 2, and because the copper joint body 1 rotates relative to the machining rolling tool, the copper machining rolling tool can squeeze the inner wall of the clamping and pressing type spigot-and-socket end 2, and a circle of sealing groove 22 is formed after the original straight inner wall is outwards recessed.

In the process of forming the seal groove 22, a circle of clamping flange 23 is naturally formed at the corresponding position of the outer wall of the clamping spigot-and-socket end 2 and the seal groove 22.

Referring to fig. 3 to 4, in use, a built-in sealing ring 221 needs to be disposed in the sealing groove 22, so that when the first end external pipe fitting 5 is connected, the clamping tool 6 is used for clamping the clamping flange 23, so that the clamping flange 23 deforms and contracts, and the built-in sealing ring 221 can respectively abut against the outer wall of the first end external pipe fitting 5 and the inner wall of the clamping socket end 2, so that sealing fit is formed between the first end external pipe fitting 5 and the inner wall of the clamping socket end 2.

Preferably, the built-in sealing ring 221 is an ethylene propylene diene monomer built-in sealing ring 221, the hardness of the ethylene propylene diene monomer built-in sealing ring 221 is more than or equal to 55HD, and the tensile strength is more than or equal to 10MPa, so as to meet the requirements under the actual use environment.

It should be noted that, in this embodiment, as a preferred scheme of the magnet holder 4 and the magnet 41 in the present utility model, specifically, referring to fig. 9, the magnet holder 4 has a disc shape, and the magnets 41 are circumferentially arranged on an end face 42 of the magnet holder 4 facing the insertion direction of the first end external pipe fitting 5, so that each magnet 41 can stably maintain halbach array arrangement.

Example two

The clamping flange 23 is in a round arc shape, so that the clamping tool 6 may slip during use, resulting in unstable clamping.

In order to solve the above-mentioned drawbacks, on the basis of the structure of the first embodiment, this embodiment provides a more preferable structural scheme, specifically as follows:

Referring to fig. 7, a plurality of positioning pits 241 are further disposed on the outer wall of the press-fit socket 2, and the positioning pits 241 are uniformly distributed in a ring shape to form a ring-shaped positioning lattice 24. The annular positioning lattice 24 has 2 circles and is symmetrically arranged at two sides of the clamping flange 23.

When the clamping tool 6 is used, the clamping tool can be contacted with the annular positioning lattice 24, so that the contact area and friction force of the clamping tool and the annular positioning lattice are improved, and the clamping tool 6 can be in a more stable state. More preferably, referring to fig. 8, the clamping tool 6 may be formed with corresponding positioning protruding points 61, and the positioning protruding points 61 are clamped into the positioning recessed points 241 of the annular positioning lattice 24, so as to perform a positioning function, so that the clamping tool 6 can be sleeved on the clamping flange 23 in a more stable state, and the clamping action can be smoothly completed.

Example III

In this embodiment, a preferred structural scheme of the insertion end 3 is described, specifically referring to fig. 2 and 5, a first guiding flange 31, a second guiding flange 32, an equal diameter flange 33, a first stop flange 34 and a second stop flange 35 are sequentially and convexly arranged on the outer wall of the insertion end 3 from front to back, wherein the structures of the flanges are defined as follows:

1. The first guide flange 31 and the second guide flange 32 are provided with wedge-shaped guide end faces 301 which gradually expand from front to back so as to facilitate the connection of the second end external pipe fitting 7, the front end area plays a role in guiding and inserting assistance, the equal-diameter flange 33 is provided with a straight end face 302, the rear end area keeps stable and consistent height, and the second end external pipe fitting 7 is prevented from being unnecessarily deformed in the rear section of the insertion, so that the assembly precision is provided.

2. The maximum radial dimension of the second stop flange 35 is greater than the maximum radial dimension of the first stop flange 34, and the maximum radial dimension of the first stop flange 34 is greater than the maximum radial dimension of the constant diameter flange 33. Through setting the maximum radial dimension, the small-diameter pipe wall 71 on the second-end external pipe fitting 7 is matched with the second-end external pipe fitting 7 with a double-layer inner wall structure, the small-diameter pipe wall 71 on the second-end external pipe fitting 7 is abutted with the first stop flange 34 after passing through the equal-diameter flange 33, and meanwhile, the large-diameter pipe wall 72 on the second-end external pipe fitting 7 is abutted with the second stop flange 35 after passing through the first stop flange 34, and forms limit fit.

3. An arc groove 36 is arranged between the first stop flange 34 and the second stop flange 35, and an external sealing ring 361 is arranged in the arc groove 36. Therefore, after the second end external pipe fitting 7 is connected, the external sealing ring 361 is respectively abutted with the first stop flange 34, the second stop flange 35, the large-diameter pipe wall 72 of the second end external pipe fitting 7 and the outer wall of the copper joint main body 1 to form omnibearing sealing, so that the second end external pipe fitting 7 is tightly and reliably matched with the insertion end 3, and the leakage probability is reduced.

Example IV

Referring to fig. 1, in this embodiment, an indication area 102 is etched on the outer wall of the press-clamping socket end 2 by laser, the indication area 102 is located at one side of the press-clamping flange 23, and a prompt function can be provided for an installer or a user by setting the indication area 102.

Particularly, if the force is too large or too small in the clamping and pressing process, the assembly is improper, so that a larger leakage risk exists in the later use. Therefore, the indication area 102 is marked with a clamping pressure value, so that clamping operation can be performed according to the marked clamping pressure value, and the first end external pipe fitting 5 and the copper joint main body 1 are well connected.

It should be noted that other technical solutions of the present utility model belong to the prior art, and are not described in detail.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the concept of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims (10)

1. The clamping and pressing type conversion copper connector comprises a copper connector main body (1), wherein the copper connector main body (1) is provided with an insertion end (3) and a clamping and pressing type spigot-and-socket end (2), and the insertion end (3) is communicated with the clamping and pressing type spigot-and-socket end (2) through a through flow passage (101);

The clamping and pressing type socket end is characterized in that a thickened stepped end face (21) is arranged on the inner wall of the clamping and pressing type socket end (2), an annular groove (211) is formed in the stepped end face (21), a magnet seat (4) is arranged in the annular groove (211), a plurality of magnets (41) are arranged on the magnet seat (4), and the magnets (41) are arranged in a halbach array, so that a strong magnetic force side (401) is formed on the inner side of the magnet seat (4), and a weak magnetic force side (402) is formed on the outer side of the magnet seat.

2. The card-pressing type conversion copper joint according to claim 1, wherein a circle of outwards concave sealing grooves (22) are formed in the inner wall of the card-pressing type spigot-and-socket end (2) in a rolling mode, and built-in sealing rings (221) are arranged in the sealing grooves (22).

3. The card-pressing type conversion copper joint according to claim 2, wherein the built-in sealing ring (221) is an ethylene-propylene-diene-terpolymer built-in sealing ring (221), and the hardness of the ethylene-propylene-diene-terpolymer built-in sealing ring (221) is more than or equal to 55HD and the tensile strength is more than or equal to 10MPa.

4. The adapter of claim 2, wherein a ring of snap-fit flanges (23) are formed on the outer wall of the snap-fit socket (2) corresponding to the seal groove (22).

5. The adapter of claim 4, wherein the outer wall of the socket end (2) is further provided with a plurality of positioning pits (241), and the positioning pits (241) are uniformly distributed in a ring shape to form a ring-shaped positioning lattice (24);

The annular positioning lattice (24) is provided with 2 circles and is symmetrically arranged at two sides of the clamping flange (23).

6. The card-pressing type copper adapter of claim 1, wherein the magnet holder (4) has a disk shape, and the magnets (41) are circumferentially arranged on an end face (42) of the magnet holder (4) facing the insertion direction of the first-end external pipe fitting (5).

7. The snap-in adapter copper connector of claim 1, wherein the outer wall of the insertion end (3) is provided with a first guide flange (31), a second guide flange (32), an equal diameter flange (33), a first stop flange (34) and a second stop flange (35) in sequence from front to back;

The first guide flange (31) and the second guide flange (32) are provided with wedge-shaped guide end faces (301) which gradually expand from front to back, and the constant diameter flange (33) is provided with a straight end face (302).

8. The snap-in adapter copper fitting of claim 7, wherein the second stop flange (35) has a maximum radial dimension that is greater than the maximum radial dimension of the first stop flange (34), the maximum radial dimension of the first stop flange (34) being greater than the maximum radial dimension of the constant diameter flange (33).

9. The adapter of claim 7, wherein an arc groove (36) is formed between the first stop flange (34) and the second stop flange (35), and an external sealing ring (361) is disposed in the arc groove (36).

10. The copper adapter of claim 4, wherein the outer wall of the socket end (2) is etched with a laser to form an indication area (102), the indication area (102) is located beside the flange (23), and the indication area (102) is marked with a clamping pressure value.