CN210240887U - Anti-falling structure for additionally installing metal bushing on plastic pipe orifice - Google Patents
Anti-falling structure for additionally installing metal bushing on plastic pipe orifice Download PDFInfo
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- CN210240887U CN210240887U CN201920972434.6U CN201920972434U CN210240887U CN 210240887 U CN210240887 U CN 210240887U CN 201920972434 U CN201920972434 U CN 201920972434U CN 210240887 U CN210240887 U CN 210240887U
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- plastic pipe
- pipe orifice
- elastic rib
- metal bushing
- elastic
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Abstract
The utility model discloses a plastics mouth of pipe installs metal bush's anti-disengaging structure additional, including the plastics mouth of pipe, its characterized in that: the inner wall of the plastic pipe orifice is uniformly provided with a plurality of elastic ribs along the circumferential direction of the plastic pipe orifice, a metal bushing is sleeved in the plastic pipe orifice, and the metal bushing is in compression joint with the plastic pipe orifice through the elastic ribs. The utility model discloses a metal bush can strengthen the orificial structural strength of plastics by a wide margin, prevents that the plastics mouth of pipe from warping under the stiction of clamp, guarantees the sealed effect of plastics mouth of pipe cooperation department. Meanwhile, the plastic pipe orifice is always kept in a compression state with the metal bushing through the elastic ribs, and the metal bushing is prevented from falling off due to looseness. Under the vibration or the effect of expansion with heat and contraction with cold, when a part of the metal bushing has a tendency of separating from the elastic rib, the elastic rib at the part can naturally bounce to keep the pressing force on the metal bushing and prevent the metal bushing from falling off.
Description
Technical Field
The utility model relates to the technical field of machinery.
Background
In the prior art, at the matching position of the plastic pipe orifice, a hoop needs to be tightened by using a certain torque on the outer ring of the plastic pipe orifice to ensure the sealing of the joint part of the plastic pipe orifice. Because of the limited strength of the plastic part, the plastic spout is easily deformed under the compression force of the clamp band, thereby breaking the seal of the plastic spout engaging member.
If the metal bushing is additionally arranged on the inner ring of the plastic pipe orifice, the structural strength of the plastic pipe orifice can be increased undoubtedly, and the plastic pipe orifice can bear larger tight pressure and cannot deform. However, the plastic pipe orifice has obvious properties of expansion with heat and contraction with cold, the inner diameter of the plastic pipe orifice is greatly influenced by the manufacturing process, and the metal lining added in the plastic pipe orifice is easy to fall off actually after the test of the applicant.
If the outer diameter of the metal bushing is slightly larger than the inner diameter of the plastic pipe orifice and the metal bushing is in interference fit with the plastic pipe orifice, the metal bushing is not easy to fall off, but when the metal bushing is installed, the plastic pipe orifice is often burst, and the damage rate of the plastic pipe orifice is too high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the problem among the prior art, provide a plastics mouth of pipe installs metal bush's anti-disengaging structure additional, can improve the orificial structural strength of plastics, can prevent again that metal bush from droing, prevents simultaneously that the plastics mouth of pipe spoilage is too high.
In order to achieve the above object, the utility model discloses an anti-disengaging structure of plastics mouth of pipe additional metal bush includes the plastics mouth of pipe, and plastics mouth of pipe inner wall evenly is equipped with a plurality of elasticity muscle along the orificial circumference of plastics, and the plastic tubing mouth of pipe endotheca is equipped with metal bush, and metal bush passes through elasticity muscle and plastic tubing mouth looks crimping.
The elastic ribs are provided with 3-10 channels.
One end of the elastic rib is thinner and the other end is thicker along the length direction of the elastic rib, the section of the elastic rib along the radial direction of the plastic pipe orifice is trapezoidal, and the middle part of the elastic rib in the length direction is provided with a same-diameter point with the same outer diameter as the metal lining; the same diameter point is positioned from 1/3 to 2/3 of the length of the elastic rib from the thinner end to the thicker end of the elastic rib;
under the natural relaxation state of the elastic rib, the position of the elastic rib at one side of the same diameter point is positioned outside the metal lining, and the elastic rib is an inlet part; and under the natural relaxation state of the elastic rib, the elastic rib on the other side of the same-diameter point is in interference fit with the metal bushing, and the elastic rib is a compression joint part.
The point of common diameter is located at 1/3 of the length of the resilient bead.
And air bubbles are uniformly distributed in the elastic ribs.
On the cross section perpendicular to the axis of the plastic pipe orifice, the cross section of the elastic rib is in an isosceles trapezoid shape, one side of the isosceles trapezoid, which is adjacent to the axis of the plastic pipe orifice, is the top surface of the elastic rib, one side of the isosceles trapezoid, which is connected with the plastic pipe orifice, is the bottom surface of the elastic rib, and the top surface of the isosceles trapezoid is narrower than the bottom surface of the elastic rib.
One end of the metal bushing is provided with a chamfer inwards.
The utility model discloses have following advantage:
the utility model discloses a metal bush can strengthen the orificial structural strength of plastics by a wide margin, prevents that the plastics mouth of pipe from warping under the stiction of clamp, guarantees the sealed effect of plastics mouth of pipe cooperation department. Meanwhile, the plastic pipe orifice is always kept in a compression state with the metal bushing through the elastic ribs, and the metal bushing is prevented from falling off due to looseness.
Under the vibration or the effect of expansion with heat and contraction with cold, when a part of the metal bushing has a tendency of separating from the elastic rib, the elastic rib at the part can naturally bounce to keep the pressing force on the metal bushing and prevent the metal bushing from falling off.
The inlet part is convenient to insert the metal bushing, and the crimping part can compress the metal bushing to prevent the metal bushing from loosening and falling off. The same diameter point is located at 1/3 of the length of the elastic rib, which is not only convenient for the metal bushing to be integrally inserted into the plastic pipe orifice from the thinner end of the elastic rib, but also prevents the compression joint part from being too small in area to enable most of the elastic rib to lose the compression anti-falling function.
Specifically, if the co-radial point is too close to the end of the plastic spout, the metal liner will be required to be very precisely aligned with the plastic spout when inserted into the plastic spout, or will be blocked from insertion by some metal liner or even the plastic spout body. If the same diameter point is too far away from the end of the plastic pipe orifice, the area of the compression joint part is too small, so that most elastic ribs lose the compression effect.
The air bubbles are uniformly distributed in the elastic rib, so that the elasticity and the deformability of the elastic rib can be improved, and the elastic rib and the metal lining are more stably pressed together.
The bottom surface of elasticity muscle is wider than its top surface, and the bottom surface of stress point no longer than the elasticity muscle after the elasticity muscle is flattened prevents that the elasticity muscle from flattening the back and flattening partly surpassing elasticity muscle bottom surface and losing the packing force.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is a schematic view of a plastic spout with resilient ribs;
FIG. 3 is a schematic cross-sectional view of the elastic bead along its length;
fig. 4 is a schematic sectional view of the elastic bead in its width direction.
Detailed Description
For showing more clearly in the figure the utility model discloses a structure, each part is not drawn according to actual scale, and is very small like the clearance between the plastics mouth of pipe and the metal bush in the reality, draws according to actual scale and is difficult to observe gapped existence in the figure, has consequently exaggered the width in the clearance between plastics mouth of pipe and the metal bush in figure 1 to show more clearly the utility model discloses structure between each part.
As shown in fig. 1 to 4, the utility model discloses an anti-disengaging structure of plastic pipe orifice installed metal bush additional includes plastic pipe orifice 1, and 1 inner wall of plastic pipe orifice evenly is equipped with a plurality of elasticity muscle 2 along plastic pipe orifice 1's circumference. The elastic ribs 2 are made of plastic or rubber, and each elastic rib 2 extends along the axial direction of the plastic pipe orifice 1. The plastic pipe orifice 1 is internally sleeved with a metal bushing 3, and the metal bushing 3 is in compression joint with the plastic pipe orifice 1 through an elastic rib 2.
The utility model discloses a metal bush 3 can strengthen the structural strength of the plastics mouth of pipe 1 by a wide margin, prevents that the plastics mouth of pipe 1 from warping under the stiction of clamp, guarantees the sealed effect of the 1 cooperation department of plastics mouth of pipe. Meanwhile, the plastic pipe orifice 1 is always kept in a compression state with the metal bushing 3 through the elastic ribs 2, and the metal bushing 3 is prevented from falling off due to looseness.
Under the vibration or the effect of thermal expansion and cold contraction, when a part of the metal bushing 3 has a separation tendency from the elastic rib 2, the elastic rib 2 at the position can naturally bounce to keep the pressing force on the metal bushing 3 and prevent the metal bushing 3 from falling off.
The elastic ribs 2 are provided with 3-10 channels, preferably 8 channels.
The elastic rib 2 is thinner at one end and thicker at the other end along the length direction, and the section of the elastic rib 2 along the radial direction of the plastic pipe orifice 1 is trapezoidal. As shown in fig. 3, the middle part of the elastic rib 2 in the length direction is provided with a same diameter point 4 which is the same as the outer diameter of the metal bush 3; from the thinner end to the thicker end of the bead 2, the same diameter point 4 is located at 1/3 to 2/3 (both ends 1/3 and 2/3) of the length of the bead 2;
under the natural relaxation state of the elastic rib 2, the position of the elastic rib 2 on one side of the same-diameter point 4 is positioned outside the metal lining 3, and the part of the elastic rib 2 is an inlet part 5; under the natural relaxation state of the elastic rib 2, the elastic rib 2 on the other side of the same-diameter point 4 is in interference fit with the metal bushing 3, and the elastic rib 2 is a compression joint part 6.
The inlet portion 5 facilitates insertion of the metal bush 3, and the crimping portion 6 can press the metal bush 3 to prevent the metal bush 3 from loosening and falling off.
The point of co-diameter 4 is located at 1/3 of the length of the resilient bead 2.
The same diameter point 4 is located at 1/3 of the length of the elastic rib 2, which is not only convenient for the metal bushing 3 to be integrally inserted into the plastic pipe orifice 1 from the thinner end of the elastic rib 2, but also prevents the compression joint part 6 from being too small in area to enable most of the elastic rib 2 to lose the compression anti-falling function.
Specifically, if the same diameter point 4 is too close to the end of the plastic spout 1, the metal bush 3 is required to be very precisely aligned with the plastic spout 1 when the metal bush 3 is inserted into the plastic spout 1, or otherwise it is blocked by a certain metal bush 3 or even the body of the plastic spout 1 and cannot be inserted. If the same diameter point 4 is too far from the end of the plastic spout 1, the area of the crimped portion 6 is too small to cause most of the elastic ribs 2 to lose their compression.
The elastic ribs 2 are uniformly distributed with air bubbles 7.
The cells 7 in the elastic ribs 2 are foamed during manufacture. The foamed plastic is prepared by the conventional technology (such as various foamed plastics) and the details are not described.
The air bubbles 7 are uniformly distributed in the elastic rib 2, so that the elasticity and the deformability of the elastic rib 2 can be improved, and the elastic rib 2 and the metal bushing 3 are more stably pressed together.
As shown in fig. 4, in the cross section perpendicular to the axis of the plastic nozzle 1, the cross section of the elastic rib 2 is an isosceles trapezoid, one side of the isosceles trapezoid adjacent to the axis of the plastic nozzle 1 is the top surface 8, the side of the isosceles trapezoid connected with the plastic nozzle 1 is the bottom surface 9, and the top surface 8 of the isosceles trapezoid is narrower than the bottom surface 9.
The bottom surface 9 of the elastic rib 2 is wider than the top surface 8 of the elastic rib, the stress point of the flattened elastic rib 2 is not more than the bottom surface 9 of the elastic rib 2, and the flattened part of the flattened elastic rib 2 is prevented from exceeding the bottom surface 9 of the elastic rib 2 and losing pressing force.
One end of the metal bushing is provided with a chamfer inwards, so that the metal bushing can be inserted into the plastic pipe orifice conveniently.
During assembly, the metal bushing 3 is inserted into the plastic pipe orifice 1 from the thinner end of the elastic rib 2, and is tightly pressed with the elastic rib 2 after passing through the same-diameter point 4. The metal bush 3 enhances the structural strength of the plastic spout 1. Under the vibration or the effect of thermal expansion and cold contraction, when a part of the metal bushing 3 has a separation tendency from the elastic rib 2, the elastic rib 2 at the position can naturally bounce to keep the pressing force on the metal bushing 3 and prevent the metal bushing 3 from falling off.
The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.
Claims (7)
1. The anti-disengaging structure of the metal bush is additionally arranged on the plastic pipe orifice, and comprises the plastic pipe orifice and is characterized in that: the inner wall of the plastic pipe orifice is uniformly provided with a plurality of elastic ribs along the circumferential direction of the plastic pipe orifice, a metal bushing is sleeved in the plastic pipe orifice, and the metal bushing is in compression joint with the plastic pipe orifice through the elastic ribs.
2. The anti-dropping structure for the plastic pipe orifice with the metal lining as claimed in claim 1, wherein: the elastic ribs are provided with 3-10 channels.
3. The anti-dropping structure for the plastic pipe orifice with the metal bushing as claimed in claim 2, wherein: one end of the elastic rib is thinner and the other end is thicker along the length direction of the elastic rib, the section of the elastic rib along the radial direction of the plastic pipe orifice is trapezoidal, and the middle part of the elastic rib in the length direction is provided with a same-diameter point with the same outer diameter as the metal lining; the same diameter point is positioned from 1/3 to 2/3 of the length of the elastic rib from the thinner end to the thicker end of the elastic rib;
under the natural relaxation state of the elastic rib, the position of the elastic rib at one side of the same diameter point is positioned outside the metal lining, and the elastic rib is an inlet part; and under the natural relaxation state of the elastic rib, the elastic rib on the other side of the same-diameter point is in interference fit with the metal bushing, and the elastic rib is a compression joint part.
4. The anti-dropping structure for the plastic pipe orifice with the metal bushing as claimed in claim 3, wherein: the point of common diameter is located at 1/3 of the length of the resilient bead.
5. The anti-dropping structure for the metal bushing added on the plastic pipe orifice as claimed in any one of claims 1 to 4, wherein: and air bubbles are uniformly distributed in the elastic ribs.
6. The anti-dropping structure for the metal bushing added on the plastic pipe orifice as claimed in any one of claims 1 to 4, wherein: on the cross section perpendicular to the axis of the plastic pipe orifice, the cross section of the elastic rib is in an isosceles trapezoid shape, one side of the isosceles trapezoid, which is adjacent to the axis of the plastic pipe orifice, is the top surface of the elastic rib, one side of the isosceles trapezoid, which is connected with the plastic pipe orifice, is the bottom surface of the elastic rib, and the top surface of the isosceles trapezoid is narrower than the bottom surface of the elastic rib.
7. The anti-dropping structure for the metal bushing added on the plastic pipe orifice as claimed in any one of claims 1 to 4, wherein: one end of the metal bushing is provided with a chamfer inwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920972434.6U CN210240887U (en) | 2019-06-26 | 2019-06-26 | Anti-falling structure for additionally installing metal bushing on plastic pipe orifice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920972434.6U CN210240887U (en) | 2019-06-26 | 2019-06-26 | Anti-falling structure for additionally installing metal bushing on plastic pipe orifice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210240887U true CN210240887U (en) | 2020-04-03 |
Family
ID=69988043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920972434.6U Active CN210240887U (en) | 2019-06-26 | 2019-06-26 | Anti-falling structure for additionally installing metal bushing on plastic pipe orifice |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210240887U (en) |
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2019
- 2019-06-26 CN CN201920972434.6U patent/CN210240887U/en active Active
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