CN220942881U

CN220942881U - Novel pipe expander

Info

Publication number: CN220942881U
Application number: CN202322449039.9U
Authority: CN
Inventors: 陈旭生
Original assignee: Yuhuan Dingli Tools Co ltd
Current assignee: Yuhuan Dingli Tools Co ltd
Priority date: 2023-09-08
Filing date: 2023-09-08
Publication date: 2024-05-14
Anticipated expiration: 2033-09-08

Abstract

The utility model provides a novel pipe expander convenient to assemble and replace, which belongs to the technical field of pipe expanders and solves the problems of relatively large volume and high production cost of the traditional sliding device.

Description

Novel pipe expander

Technical Field

The utility model belongs to the technical field of pipe expanders, relates to a pipe expander, and in particular relates to a novel pipe expander.

Background

The pipe expander is a device for extruding and expanding one end of the pipe fitting, so that the opening of the pipe fitting can be expanded to expand, and the pipe fittings are convenient to be mutually connected. The existing pipe expander is matched with the sliding device, the conical head is pushed to deform or move the pipe expander to expand the opening of the pipe fitting, the pipe expander gun body rotates the pipe expander through the position of the pipe expander, so that the expanded pipe fitting keeps dimensional stability, and compared with the traditional pipe expander, the pipe expander is more labor-saving and has a good use effect. However, the complex internal structure of the existing expander matched with the sliding device leads to relatively large volume and high production cost.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a novel pipe expander which is convenient to assemble and replace.

The aim of the utility model can be achieved by the following technical scheme: the novel pipe expander is characterized by comprising a pipe expander body composed of a reaming head and a chassis, wherein the reaming head is formed by assembling reaming parts of a plurality of annular equal parts, the reaming parts extend downwards to form first connecting parts, the first connecting parts are provided with second connecting parts which extend outwards, annular grooves for connecting the second connecting parts are formed in the chassis, and fastening units are arranged on the sides of the first connecting parts and the sides of the second connecting parts.

In the novel pipe expander, the annular groove is connected with the second connecting part in a clamping mode.

In the novel pipe expander, threads for installing the gun body are arranged on the inner wall of the chassis, and knurling is arranged on the outer side of the chassis.

In the novel pipe expander, the protruding part is arranged at the lower end of the second connecting part, and the protruding part is provided with a groove for clamping the clamping part of the pipe expanding gun.

In the novel pipe expander, a conical cavity for sliding a cone is formed in the reaming head.

In the novel pipe expander, the abrasion-proof part is arranged at the lower part of the second connecting part.

In the novel pipe expander, the size of the reaming head is 15.8+/-0.2 mm for reaming a pipe fitting with the inner diameter of 16mm, or 19+/-0.2 mm for reaming a pipe fitting with the inner diameter of 20mm, or 22.4+/-0.2 mm for reaming a pipe fitting with the inner diameter of 25mm, or 28+/-0.2 mm for reaming a pipe fitting with the inner diameter of 32 mm.

Compared with the prior art, the novel pipe expander can replace the reaming head according to the pipeline size demand, the reaming head is connected with the chassis in a clamping mode, the chassis is provided with threads, the quick connection of the product can be realized with a matched pipe expanding gun, the use method is simple and convenient, and the use method has the advantage of improving the efficiency.

Drawings

Fig. 1 is a schematic front view of the expander of the present utility model.

FIG. 2 is a cross-sectional analysis of the expander of the present utility model.

In the figure, 1, knurling; 2. a chassis; 3. a second connecting portion; 4. a fastening unit; 5. a first connection portion; 6. a reamer part; 7. a protruding portion; 8. a conical cavity; 9. an annular groove; 10. a reaming head; 11. an abrasion-proof part; 12. a groove.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1, the novel pipe expander is characterized by comprising a pipe expander main body formed by a reaming head 10 and a chassis 2, wherein the reaming head 10 is formed by assembling reaming parts 6 of a plurality of annular equal parts, a plurality of reaming parts 6 are encircled and combined into a concentric column, a plurality of reaming parts 6 are downwards extended to form a first connecting part 5, the first connecting part 5 is provided with a second connecting part 3 which is outwards extended, the chassis 2 is internally provided with an annular groove 9 for connecting the second connecting part 3, fastening units 4 are respectively arranged on the side edges of the first connecting part 5 and the second connecting part 3, and the fastening units 4 are springs connected end to end.

Preferably, the annular groove 9 is connected with the second connecting portion 3 in a clamping manner, and a gap is reserved between the second connecting portion 3 and the annular groove 9 so that the reaming head 10 can flexibly move, six reaming portions 6 are prepared during installation, one of the six reaming portions 6 is taken out, the fastening unit 4 is arranged at the side end of the second connecting rod and clamped into the annular groove 9, the remaining reaming portions 6 are sequentially clamped into the annular groove, and after the arrangement is completed, the other fastening unit 4 is arranged on the first connecting portion 5 and the installation is completed.

Preferably, the inner wall of the chassis 2 is provided with a thread for installing the gun body, the lower end of the second connecting part 3 is provided with a protruding part 7, the protruding part 7 is provided with a groove 12 for clamping the clamping part of the pipe expanding gun, the outer side of the chassis 2 is provided with a knurl 1, when the matched pipe expanding gun is installed, the pipe expanding device is installed on the pipe expanding gun by utilizing flexible movement of the head part of the pipe expanding device, the protruding part 7 is clamped with the positioning part, and thereafter, the pipe expanding gun body is clamped by virtue of the protruding part connected with the positioning part in the pipe expanding gun, and the rotation is completed, so that the size stability of the pipe fitting after the expansion is maintained.

Preferably, a conical cavity 8 for sliding a cone is formed in the reaming head 10, and the conical cavity 8 can be expanded or moved by pushing the inner conical head of the pipe expanding gun.

Preferably, the lower part of the second connecting part 3 is provided with an anti-wear part 11.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although the terms knurling 1, chassis 2, second connection 3, fastening unit 4, first connection 5, reamer 6, protrusion 7, tapered cavity 8, annular groove 9, reamer head 10, wear protection 11 are used more herein, the possibility of using other terms is not precluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims

1. The utility model provides a novel expander, its characterized in that includes the expander main part that reamer head (10) and chassis (2) are constituteed, reamer head (10) constitute by reamer portion (6) of a plurality of annular samming, a plurality of reamer portion (6) all extend first connecting portion (5) downwards, first connecting portion (5) on be equipped with second connecting portion (3) of outside extension, chassis (2) inside be equipped with ring channel (9) that supply second connecting portion (3) to connect, first connecting portion (5) all be equipped with fastening unit (4) on second connecting portion (3) side.

2. A novel pipe expander as claimed in claim 1, wherein the annular groove (9) is in snap-in connection with the second connection portion (3).

3. The novel pipe expander according to claim 1, wherein threads for installing a gun body are arranged on the inner wall of the chassis (2), and knurling (1) is arranged on the outer side of the chassis (2).

4. The novel pipe expander according to claim 1, wherein the lower end of the second connecting portion (3) is provided with a protruding portion (7), and the protruding portion (7) is provided with a groove (12) for clamping the clamping portion of the pipe expander gun.

5. A novel pipe expander as claimed in claim 1, wherein a conical cavity (8) for sliding a cone is provided in the reamer head (10).

6. A novel pipe expander as claimed in claim 1, wherein the lower part of the second connecting part (3) is provided with an anti-wear part (11).

7. A new pipe expander as claimed in claim 1, wherein the reamer head (10) is 15.8±0.2mm in size for reaming a pipe having an inner diameter of 16mm, or 19±0.2mm for reaming a pipe having an inner diameter of 20mm, or 22.4±0.2mm for reaming a pipe having an inner diameter of 25mm, or 28±0.2mm for reaming a pipe having an inner diameter of 32 mm.