CN216944363U

CN216944363U - Plastic pipe end protective cap

Info

Publication number: CN216944363U
Application number: CN202123034535.5U
Authority: CN
Inventors: 张友新; 刘秦元; 陆国强
Original assignee: Linhai Weixing New Building Materials Co Ltd
Current assignee: Linhai Weixing New Building Materials Co Ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-07-12
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses a plastic pipe end protective cap which comprises a protective sleeve and a plurality of annularly arranged contact elastic arms arranged in the protective sleeve, wherein the protective sleeve is of a cylindrical structure with one sealed end, each contact elastic arm comprises a first connecting section and a second connecting section, one end of each first connecting section is vertically connected with the protective sleeve, the other end of each first connecting section is connected with the corresponding second connecting section at an angle, each second connecting section extends towards the center at an inclination angle, the inwardly extending end parts of all the contact elastic arms are flush, the contact elastic arms can contract inwards, an annular groove is formed between each contact elastic arm and the protective sleeve, and the groove is used for being sleeved into the end part of a plastic pipe. The protective cap is simple in structure and convenient to operate, and the protective cap is suitable for plastic pipes with different inner diameters and larger out-of-roundness through the contact elastic arms which can be retracted inwards and are annularly arranged and the barbs arranged on the contact elastic arms, so that the protective cap is dustproof and is not easy to fall off.

Description

Plastic pipe end protective cap

Technical Field

The utility model belongs to the technical field of pipe protection devices, and particularly relates to a plastic pipe end protection cap.

Background

After the plastic pipe is produced, the end part of the plastic pipe is often collided and damaged or scratched in the transportation, dragging and construction sites, so that the plastic pipe cannot be subjected to hot-melt welding or is insufficient in welding strength and poor in appearance, the end part cannot be used and needs to be cut off, and waste and workload are increased. During long-term storage, dust and impurities are easy to contaminate the end part and even enter the inner surface, and the end part needs to be cleaned before welding to affect the efficiency. The protective cap adopted by the existing plastic pipe is mostly sleeved on the outer surface of a pipe by a cylindrical cap, and the problems that the protective cap is easy to fall off due to untight outer diameter matching and difficult to sleeve and take out or even cannot be sleeve due to small fluctuation of the outer diameter or insufficient rigidity and large out-of-roundness during pipe production exist.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention provides a plastic pipe end protection cap.

In order to achieve the purpose, the following technical scheme is provided:

the utility model provides a plastics tubular product tip protective cap, includes the protective sheath and locates the inside contact elastic arm that a plurality of rings shape were arranged of protective sheath, and contact elastic arm can inwards contract, constitutes the recess of ring type between contact elastic arm and the protective sheath, and the recess is used for emboliaing the tip of plastics tubular product.

Furthermore, the protective sleeve is of a cylindrical structure with one sealed end, the inner surface of the sealed end is fixedly connected with the contact elastic arm, and the outer wall surface of the protective sleeve is provided with a circumferential smooth pit and a longitudinal smooth pit, so that the protective cap can be conveniently inserted and pulled out.

Further, the contact elastic arm comprises a first connecting section and a second connecting section, one end of the first connecting section is perpendicularly connected with the protective sleeve, the other end of the first connecting section is connected with the second connecting section in an angled mode, and the second connecting section extends towards the center in an inclined angle mode.

Furthermore, the cross section of the contact elastic arm is triangular or trapezoidal, barbs are arranged on the outer portion of the first connecting section, and the barbs are uniformly distributed on each contact elastic arm or every several contact elastic arms.

Further, the number of the contact elastic arms is at least 3, and the number and the size are designed and adjusted according to the elastic size and the use condition.

Further, adjacent side faces of adjacent contact elastic arms are parallel, the contact elastic arms can be compressed inwards and can be contracted to be attached to the adjacent side faces, and the contact elastic arms can be compressed inwards to adapt to pipes with large out-of-roundness and pipes with different inner diameters.

Further, the length of the contact elastic arm is larger than the height of the protective sleeve, and the inner diameter of the protective sleeve is slightly larger than the outer diameter of the plastic pipe.

Further, the shape of barb is trapezoidal or triangle-shaped, and the barb that is close protective sheath sealed end is trapezoidal, and all the other barbs are triangle-shaped, and the apex angle of triangle-shaped barb is the fillet, and the height of all barbs equals, and trapezoidal last plane pastes with the tubular product inner wall mutually, and triangle-shaped's fillet pastes with the tubular product inner wall mutually, and the barb is after protective cap embolias the tubular product tip, supports the tubular product inner wall, prevents that the non-of protective cap from artificially coming off.

The utility model has the beneficial effects that: through the contact elastic arm with the barb and the contact of the inner surface of the protective sleeve, the contact elastic arm is annularly arranged to form a structure capable of being compressed inwards, so that the installation requirements of soft and hard plastic pipe protective caps with different inner diameters and larger out-of-roundness are met, and the outer surface protection and dust prevention requirements of the end part of the pipe are met.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is an assembled cross-sectional view of the present invention;

FIG. 4 is a front view of the contact spring arm in a triangular shape;

fig. 5 is an enlarged detail view at a.

In the figure: 1. a contact spring arm; 11. a barb; 12. a first connection section; 13. a second connection section; 2. a protective sleeve; 21. circular smooth pits; 22. and 4, longitudinally and smoothly forming a pit.

Detailed Description

The utility model will be further described with reference to the drawings attached to the description, but the scope of the utility model is not limited thereto.

As shown in fig. 1 to 3, a plastic pipe end protection cap is integrally formed, and includes a protection sleeve 2 and a contact elastic arm 1, the protection sleeve 2 is a cylinder structure with one sealed end, the outer wall surface of the protection sleeve 2 is provided with a circular smooth pit 21 and a longitudinal smooth pit 22, the inner surface of the sealed end of the protection sleeve 2 is connected with the contact elastic arm 1 which is arranged in a ring shape, the contact elastic arm 1 can contract inwards, a circular groove is formed between the contact elastic arm 1 and the protection sleeve 2, the groove is used for being sleeved into the end of a plastic pipe, the contact elastic arm 1 includes a first connection section 12 and a second connection section 13, one end of the first connection section 12 is vertically connected with the protection sleeve 2, the other end is connected with the second connection section 13 at an angle, the second connection section 13 extends towards the center at an inclination angle, the cross section of the contact elastic arm 1 is a triangle as shown in fig. 4 or a trapezoid as shown in fig. 1, the outer portion of the first connection section 12 is provided with a barb 11, the adjacent side surfaces of the adjacent contact elastic arms 1 are parallel, and the contact elastic arms 1 can be compressed inwards until the contact elastic arms 1 are attached to each other.

As shown in figure 5, the barbs 11 are trapezoidal or triangular, the barbs 11 near the sealing end of the sheath 2 are trapezoidal, the remaining barbs 11 are triangular, the apex angle of the triangular barbs 11 is a rounded corner, and the heights of all barbs 11 are equal.

When the out-of-roundness of the plastic pipe used for protecting the plastic pipe end protective cap is large, the contact elastic arms 1 inside are compressed inwards to ensure that the protective caps can be completely sleeved at two ends of the pipe, and meanwhile, the barbs 11 abut against the inner wall of the pipe to prevent non-artificial falling.

Claims

1. The utility model provides a plastics tubular product tip protective cap, its characterized in that includes protective sheath (2) and locates contact elastic arm (1) that a plurality of rings of protective sheath (2) inside were arranged, and contact elastic arm (1) can inwards shrink, constitutes the recess of ring type between contact elastic arm (1) and protective sheath (2), and the recess is used for emboliaing the tip of plastics tubular product.

2. The plastic pipe end protective cap according to claim 1, wherein the protective cap (2) is a cylinder structure with one sealed end, the inner surface of the sealed end is fixedly connected with the contact elastic arm (1), and the outer wall surface of the protective cap (2) is provided with a circumferential smooth pit (21) and a longitudinal smooth pit (22).

3. A plastic tubing end cap as claimed in claim 2, wherein the contact spring arm (1) comprises a first connecting section (12) and a second connecting section (13), the first connecting section (12) being connected at one end perpendicularly to the protective sleeve (2) and at the other end at an angle to the second connecting section (13), the second connecting section (13) extending at an angle towards the centre.

4. A plastic tubing end cap as claimed in claim 3, wherein the contact spring arm (1) is triangular or trapezoidal in cross-section and the first connecting section (12) is provided with barbs (11) on its exterior.

5. A plastic tubing end cap as claimed in any one of claims 1 to 4, wherein the number of contact spring arms (1) is at least 3.

6. A plastic tubing end cap as claimed in claim 5, wherein adjacent sides of adjacent contacting resilient arms (1) are parallel.

7. A plastic tubing end cap as claimed in claim 5, wherein the length of the contact spring arm (1) is greater than the height of the protective sleeve (2), and the inner diameter of the protective sleeve (2) is slightly greater than the outer diameter of the plastic tubing.

8. A plastic tubing end cap according to claim 4 wherein the barbs (11) are trapezoidal or triangular in shape, the barbs (11) near the sealing end of the cap (2) are trapezoidal, the remaining barbs (11) are triangular, the apex angles of the triangular barbs (11) are rounded, and the heights of all barbs (11) are equal.