CN215721515U - Pipe fitting joint with metal insert - Google Patents
Pipe fitting joint with metal insert Download PDFInfo
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- CN215721515U CN215721515U CN202120908470.3U CN202120908470U CN215721515U CN 215721515 U CN215721515 U CN 215721515U CN 202120908470 U CN202120908470 U CN 202120908470U CN 215721515 U CN215721515 U CN 215721515U
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- metal insert
- plastic body
- side wall
- joint
- pipe fitting
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Abstract
The utility model belongs to the technical field of pipeline connection, and particularly relates to a pipe fitting joint with a metal insert, which comprises the metal insert and a plastic body, wherein the plastic body is coated on the circumferential surface of the metal insert, the metal insert is hollow, an internal thread structure is arranged inside the metal insert, a carrying port is arranged on the plastic body and communicated with the inside of the metal insert, an elastically deformable and closed transition structure is arranged between the outer side wall of the metal insert and the plastic body in a surrounding and pressing mode, and two ends of the transition structure are respectively and tightly connected with the plastic body and the metal insert. The transition structure can enable the metal insert and the plastic body to be tightly connected, and the water leakage prevention performance of the joint is improved; in addition, the metal insert is made of stainless steel materials, so that the sanitary safety of water can be improved.
Description
Technical Field
The utility model belongs to the technical field of pipeline connection, and particularly relates to a pipe fitting joint with a metal insert.
Background
The pipe joint containing the insert is formed by connecting the insert and a plastic part in an injection molding mode, so that the tightness degree of the combination of the insert and the plastic is an important factor influencing the sealing performance and the service life of the pipe joint. In the present scheme, what general inserts adopted is metallic copper, because inserts and plastic part do not have direct fixed connection, all only carry on spacingly through the groove, and because the difference of pipe fitting service environment, the degree that metal and plastics shrink or expand under expend with heat and contract with cold's effect is inconsistent, makes plastic part and inserts take place the pine to take off easily, causes to connect to leak, and two pipe fittings break away from even causes the influence to normal production life.
In order to solve the above technical problems, chinese patent CN210739696U discloses an internal connection insert and an injection molding pipe thereof, wherein the internal connection insert comprises an insert body and a rotation stopping groove, the rotation stopping groove is arranged at an end of the insert body, a second anti-leakage structure is arranged around one end of the insert body far away from the rotation stopping groove, a plurality of third anti-leakage structures are arranged on a circumferential surface of the insert body, although the possibility of generating a gap between the plastic and the inner connecting insert can be reduced, in the implementation process, the rotating stopping groove is arranged at the end part of the insert body, when the insert body is manufactured, the end part of the insert body needs to be cut, so that the length of the insert body is overlong, the whole joint is heavy, the manufacturing cost is high, the loss is large, when the pipe fitting is in threaded connection with the joint, the rotation stopping groove at the end part is subjected to large moment, so that the rotation stopping groove is easy to break and has poor rotation stopping effect; in addition, although the anti-leakage structure with a plurality of annular groove types is arranged, the metal insert can only be prevented from falling off from the plastic pipe fitting, and the problem that a gap is generated between the metal and the plastic due to inconsistent expansion and contraction degrees of the metal and the plastic cannot be solved, so that liquid in the pipe fitting can still permeate into the gap between the metal and the plastic to leak.
SUMMERY OF THE UTILITY MODEL
In order to overcome at least one defect in the prior art, the utility model provides a pipe fitting joint with a metal insert, which can improve the connection tightness between the metal insert and a plastic part and realize good anti-leakage effect.
In order to solve the technical problems, the utility model adopts the technical scheme that:
the utility model provides a pipe fitting connects with metal insert, including metal insert and plastic body, the plastic body cladding is on metal insert's global, the inside cavity of metal insert, the inside internal thread structure that is provided with of metal insert, the last bellmouth that is provided with of plastic body, bellmouth and the inside being linked together of metal insert, but the lateral wall of metal insert and plastic body encircle to press between be equipped with elastic deformation and confined transition structure, but transition structure's both ends respectively with plastic body, metal insert zonulae occludens.
Through setting up transition structure between plastic body and metal insert in this scheme, when the expend with heat and contract with cold of the different degree of plastic body and metal insert emergence clearance, transition structure resumes under self elasticity effect, and then always with plastic body, metal insert avoid tightly contacting, avoid moisture to flow through from the clearance of plastic body and metal insert, improved the antiseep effect that connects greatly.
As a further improved structure form, the transition structure is a fluorine glue structure.
As a further improved structure form, the outer side wall of the metal insert is also provided with a plurality of limiting structures for limiting the relative movement of the metal insert and the plastic body.
As a further improved structure, the limiting structure is a T-shaped block, the bottom end of the T-shaped block is fixedly connected with the outer side wall of the main body, and the top end of the T-shaped block is embedded in the inner side wall of the plastic body.
As another kind of modified structural style, foretell limit structure is trapezoidal platform, and the less one end of trapezoidal platform and main part lateral wall fixed connection, the great one end is embedded in plastic body's inside wall.
As a further improved structure form, the transition structure is a plurality of annular rings surrounding the outer side of the main body.
As a further improved structural form, the above-mentioned transition structure is made of silica gel.
As a further improved structure form, the height value of the limiting structure along the radial direction of the metal insert is 3-10 mm.
As a further improved structure form, the height value of the transition structure along the radial direction of the metal insert is larger than that of the limiting structure, and the height value of the transition structure along the radial direction of the metal insert is smaller than 13 mm.
As a further improved structure form, a plurality of grooves are circumferentially arranged on the outer side wall of one end, close to the bellmouth, of the metal insert, and one surface, close to the bellmouth, of each groove and one surface, on the outermost side in the radial direction, of each groove are opening surfaces.
As a further improved structure form, one end of the metal insert far away from the bearing opening is flush with the end face of the plastic body.
As a further improved structure form, the outer side walls of the two ends of the metal insert are respectively provided with a hook-shaped groove in a surrounding mode, and the openings of the two hook-shaped grooves are oppositely arranged.
As a further improved form of construction, the metal insert described above is made of stainless steel.
Compared with the prior art, the beneficial effects are:
the transition structure can be always tightly connected with the metal insert and the plastic body, so that the condition that the metal insert and the plastic body generate a gap due to expansion with heat and contraction with cold to cause water leakage is avoided, and the environmental adaptability of the joint is improved; in addition, the limiting structure is arranged on the side wall of the metal insert, so that the relative motion between the metal insert and the plastic body is prevented, and meanwhile, the torsional moment borne by the limiting structure can be reduced, and the service life of the joint is prolonged; meanwhile, the metal insert is made of stainless steel, so that impurities such as rust or verdigris can be prevented from polluting a water source, and the use sanitation and safety of the pipe fitting joint are improved.
Drawings
FIG. 1 is a schematic view of a first angular configuration of a pipe fitting joint with metal inserts according to example 1 of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic view of the overall structure of a metal insert of a pipe joint with a metal insert according to example 1 of the present invention;
FIG. 4 is a schematic view of the overall structure of a metal insert of a pipe joint with a metal insert according to embodiment 2 of the present invention;
fig. 5 is a schematic view of the overall structure of a metal insert of a pipe joint with a metal insert according to embodiment 3 of the present invention.
The plastic part comprises a plastic body 1, a socket 11, a metal insert 2, a main body 21, a limiting structure 22, an internal thread structure 23, a hook-shaped groove 24, a groove 25 and a transition structure 3.
Detailed Description
The drawings are for illustration purposes only and are not to be construed as limiting the utility model; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the utility model.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Example 1:
as shown in fig. 1 to 3, a first embodiment of a pipe fitting joint with a metal insert is provided, which includes a metal insert 2 and a plastic body 1, the plastic body 1 is coated on the circumferential surface of the metal insert 2, the metal insert 2 is hollow inside, an internal thread structure 23 is provided inside the metal insert 2, a receiving opening 11 is provided on the plastic body 1, the receiving opening 11 is communicated with the inside of the metal insert 2, an elastically deformable and sealed transition structure 3 is provided between the outer side wall of the metal insert 2 and the plastic body 1 by surrounding and pressing, and two ends of the transition structure 3 are respectively connected with the plastic body 1 and the metal insert 2 tightly.
The number of the transition structures 3 is not limited, and the number of the transition structures 3 in the embodiment is two, so as to enhance the sealing performance.
The transition structure 3 in this embodiment is made of rubber having a good heat resistance, such as a fluorine rubber structure. The fluorine rubber structure has better high temperature resistance, can be placed in a mould together with the metal insert 2 for injection moulding, and simultaneously ensures that the fluorine rubber structure still keeps better elastic property at high temperature. It should be noted that, of course, the plastic body 1 will be cooled and shrunk after the injection molding is completed, and the fluorine glue is compressed, so that the fluorine glue is in a compressed state.
As shown in fig. 3, the outer side wall of the metal insert 2 in this embodiment is further provided with a plurality of limiting structures 22 for limiting the relative movement between the metal insert and the plastic body 1.
As shown in fig. 3, the limiting structure 22 in this embodiment is a T-shaped block, a bottom end of the T-shaped block is fixedly connected to an outer sidewall of the main body 21, wherein the T-shaped block can be welded to the main body 21, and a top end of the T-shaped block is embedded in the inner sidewall of the plastic body 1. The T type piece that the interval set up can guarantee that metal insert 2 is embedded well on plastic body 1, and restriction metal insert 2 takes place relative rotation or axial relative motion with plastic body 1 simultaneously, improves metal insert 2 and plastic body 1's stability of being connected.
The transition structure 3 in this embodiment is a plurality of annular rings made of silica gel and surrounding the outer side of the main body 21, and the silica gel has good elastic deformation performance, stable chemical properties, no substances harmful to human body, and good safety; transition structure 3 is a plurality of annular rings setting in addition, can carry out multiple protection to rivers, further promotes the leak protection water performance that connects.
The height of the stop structure 22 in this embodiment in the radial direction of the metal insert 2 is 6 mm. Of course, this is only a reference embodiment, and it is in order to avoid the whole pipe diameter of joint too big when guaranteeing limit structure 22 intensity, can not understand the restriction to this scheme, and the high optional range of limit structure 22 is 3 ~ 10mm in the specific implementation process.
The transition structure 3 in this embodiment has a height value of 9mm in the radial direction of the metal insert 2. Can guarantee like this that transition structure 3 can also be always simultaneously with plastic body 1, metal insert 2's main part 21 zonulae occludens under limit structure's 22 existence, fill the clearance that plastic body 1 and metal insert 2's main part 21 produced, improve the leak protection water performance of joint. It should be noted that, in this embodiment, the height value of the transition structure 3 is selected corresponding to the height value of the limiting structure 22, and is not limited to the present solution, and in the specific implementation process, the height value of the transition structure 3 is greater than the height value of the limiting structure 22 and smaller than 13mm, so that the functions of the present solution can be implemented, and no more detailed description is made here.
In this embodiment, the end of the metal insert away from the socket 11 is flush with the end surface of the plastic body 1. Thus making the overall appearance more aesthetically pleasing.
As shown in fig. 2, the outer side walls of both ends of the metal insert 2 in this embodiment are provided with hook grooves 24 around, and the openings of the two hook grooves 24 are disposed opposite to each other. Therefore, the water seeped from the two ends of the metal insert 2 flows through the hook-shaped groove 24 firstly, so that the water seepage path is prolonged, and the anti-seepage performance of the joint is enhanced; in addition, the two hook-shaped grooves 24 arranged oppositely can axially limit the metal insert 2 and prevent the metal insert from being separated from the plastic body 1.
The metal insert 2 in the embodiment is made of stainless steel, and compared with a traditional insert made of copper, the metal insert 2 made of stainless steel does not generate verdigris and is not easy to rust, so that the cost is lower, and the sanitary safety is better.
Example 2
As shown in fig. 4, a second embodiment of a pipe fitting joint with a metal insert is provided, and the difference between this embodiment and the first embodiment is that the limiting structure 22 in this embodiment is a trapezoidal platform, a smaller end of the trapezoidal platform is fixedly connected with an outer side wall of the main body 21, and a larger end of the trapezoidal platform is embedded in an inner side wall of the plastic body 1. This makes the machining of the stop structure 22 easier and further reduces the manufacturing cost of the joint.
Example 3
As shown in fig. 5, a third embodiment of a pipe fitting joint with a metal insert is provided, and this embodiment is different from the first embodiment only in that a plurality of grooves 25 are circumferentially provided on an outer side wall of the metal insert 2 near one end of the socket 11, and a surface of the groove 25 near the socket 11 and a surface on the outermost side in the radial direction of the metal insert 2 are opening surfaces. Like this, recess 25 can not run through metal insert 2's lateral wall, compare in traditional groove that runs through, such structural strength is bigger, and after the completion of moulding plastics, the plastics can pour into the recess 25 into, and the lateral wall between the adjacent recess 25 can restrict the rotation of metal insert 2 in plastic body 1 to prevent metal insert 2 slip in plastic body 1 when connecting, further strengthen metal insert 2 and plastic body 1's stability of being connected, prolong the life that the pipe fitting connects.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a pipe fitting connects with metal insert, includes metal insert (2) and plastic body (1), plastic body (1) cladding is in on the global of metal insert (2), the inside cavity of metal insert (2), the inside female thread structure (23) that is provided with of metal insert (2), be provided with bellmouth (11) on plastic body (1), bellmouth (11) with metal insert (2) are inside to be linked together, its characterized in that, the lateral wall of metal insert (2) with encircle between plastic body (1) and press and be equipped with elastic deformation and confined transition structure (3), plastic body (1) is connected with passing through transition structure (3) of metal insert (2).
2. A pipe joint with metal insert according to claim 1, characterized in that said transition structure (3) is a fluorine glue structure.
3. A pipe fitting joint with a metal insert according to claim 1, characterized in that the outer side wall of the metal insert (2) is further provided with a plurality of limiting structures (22) for limiting the relative movement of the metal insert and the plastic body (1).
4. The pipe joint with the metal insert as claimed in claim 3, wherein the limiting structure (22) is a T-shaped block, the bottom end of the T-shaped block is fixedly connected with the outer side wall of the metal insert, and the top end of the T-shaped block is embedded in the inner side wall of the plastic body (1).
5. The pipe joint with the metal insert as claimed in claim 3, wherein the limiting structure (22) is a trapezoidal table, a smaller end of the trapezoidal table is fixedly connected with the outer side wall of the main body (21), and a larger end of the trapezoidal table is embedded in the inner side wall of the plastic body (1).
6. A pipe joint with a metal insert according to claim 4 or 5, wherein the height of the limiting structure (22) in the radial direction of the metal insert (2) is 3-10 mm; the height value of the transition structure (3) along the radial direction of the metal insert (2) is larger than that of the limiting structure (22), and the height value of the transition structure (3) along the radial direction of the metal insert (2) is smaller than 13 mm.
7. The pipe fitting joint with the metal insert as claimed in claim 1, wherein the outer side wall of the metal insert (2) near one end of the bellmouth (11) is provided with a plurality of grooves (25) in a surrounding manner, one surface of the grooves (25) near the bellmouth (11) and the outermost surface in the radial direction of the metal insert (2) are opening surfaces.
8. A pipe fitting joint with a metal insert according to claim 1, characterized in that the end of the metal insert remote from the socket (11) is flush with the end face of the plastic body (1).
9. A pipe joint with a metal insert according to claim 1, characterized in that the outer side walls of both ends of the metal insert (2) are provided with hook grooves (24) around, and the openings of the two hook grooves (24) are opposite.
10. A pipe joint with metal insert according to claim 1, characterized in that the metal insert (2) is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120908470.3U CN215721515U (en) | 2021-04-28 | 2021-04-28 | Pipe fitting joint with metal insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120908470.3U CN215721515U (en) | 2021-04-28 | 2021-04-28 | Pipe fitting joint with metal insert |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215721515U true CN215721515U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120908470.3U Active CN215721515U (en) | 2021-04-28 | 2021-04-28 | Pipe fitting joint with metal insert |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215721515U (en) |
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2021
- 2021-04-28 CN CN202120908470.3U patent/CN215721515U/en active Active
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