CN108971362B

CN108971362B - Pipe expanding assembly structure

Info

Publication number: CN108971362B
Application number: CN201710404304.8A
Authority: CN
Inventors: 黄武胜
Original assignee: Yung Chi Industry Co ltd
Current assignee: Yung Chi Industry Co ltd
Priority date: 2017-06-01
Filing date: 2017-06-01
Publication date: 2020-04-28
Anticipated expiration: 2037-06-01
Also published as: CN108971362A

Abstract

A tube expansion assembly structure includes a carrier, a tube clamping assembly and a tube expansion terminal assembly. The tube clamping assembly is installed on the carrier to clamp a tube; the tube expansion terminal assembly has a plurality of terminals, and the tube expansion terminal assembly can be movably arranged on the carrier to be relative to the tube clamping assembly. According to different tube diameters or expanded tube shapes, the position or angle of the tube expansion terminal assembly can be changed to make the appropriate terminal relative to the tube. The terminal contacts a port of the tube and continuously moves to form an expanded tube state. Through the above structural form and operation method, the effect of eliminating the need to replace terminals and convenient operation can be achieved.

Description

Pipe expanding assembly structure

Technical Field

The present invention relates to a hand tool, and more particularly, to a pipe expanding device that can be used with a pipe expanding driver and is configured with a pipe clamping assembly and a pipe expanding terminal assembly.

Background

Generally, a metal pipe is connected to a corresponding device or two metal pipes are connected to each other, and one end of the metal pipe needs to change its outer diameter or shape before the connection with the device or another metal pipe can be completed smoothly. The method for changing the external diameter or shape of the metal pipe fitting comprises the steps of clamping the metal pipe fitting by using a pipe expanding device, and expanding a preset length of one end of the metal pipe fitting by using a proper terminal to change the external diameter or shape.

However, before the pipe expansion, a predetermined length of one end of the pipe and a final pipe expansion form are determined, so that two different types of terminals are usually selected and used interchangeably to smoothly complete the pipe expansion. However, it is obviously inconvenient to replace and use the proper terminal one by one during the tube expanding process.

Furthermore, if the pipe expanding device does not have a design for limiting the position of the pipe port, a user must visually observe the pipe expanding length of the pipe, so that the pipe expanding accuracy is reduced. In addition, the extra limiting device, such as a baffle, can be used for obtaining better accuracy of the pipe expanding length of the pipe fitting, but obviously the operation is inconvenient.

Disclosure of Invention

The invention aims to provide a pipe expanding assembly structure which can achieve the effect of avoiding replacing a terminal by switching modes and can meet the effect of applying the pipe expanding effect on a pipe fitting and enabling the end part of the pipe fitting to form different shapes.

In order to achieve the purpose, the invention adopts the following technical scheme:

the design concept of the invention is to utilize a technical means that a carrier is combined with a pipe expanding terminal component, and the pipe expanding terminal component can generate a preset motion mode relative to the carrier, so that any one or proper terminals in the pipe expanding terminal component are opposite to a pipe fitting and a pipe expanding driver to perform pipe expanding action. In addition, the expanding terminal assembly can be adjusted to a proper position to limit and determine the expanding length of one end of the pipe.

The present invention discloses a pipe expanding component structure for clamping a pipe fitting and corresponding to a pipe expanding driver, which comprises: a carrier having a clamping tube set accommodating groove and a terminal set accommodating groove; a pipe clamping component is arranged in the pipe clamping group accommodating groove and used for clamping the pipe fitting; a tube-expanding terminal component, which is a plurality of terminals connected in the interior of a body, and the body is used for being installed in the terminal group containing groove; the pipe expanding terminal assembly is stressed to generate a motion mode so as to change one of position and angle, and different terminals in the pipe expanding terminal assembly are selected to correspond to one port of the pipe fitting and the pipe expanding driver through the motion mode.

The motion modes include linear displacement, arcuate displacement and rotation. Each motion mode can be matched with a proper body shape, so that the body can generate the corresponding motion mode.

The body of the pipe expanding terminal component is a strip-shaped block-shaped component and is movably arranged in the terminal group accommodating groove, and the body can generate linear displacement under stress, so that different terminals are opposite to the pipe fitting and the pipe expanding driver.

The body of the pipe expanding terminal component is an arc-shaped long block-shaped component and can be movably arranged in the terminal group accommodating groove, and the body can generate displacement of an arc-shaped track under stress, so that different terminals are opposite to the pipe fitting and the pipe expanding driver.

The body of the pipe expanding terminal component is a disc-shaped component and can be rotatably arranged in the terminal group accommodating groove, and the body can rotate under the action of stress, so that different terminals can be opposite to the pipe fitting and the pipe expanding driver.

The carrier comprises a window which is opposite to the terminal group containing groove and can see part of the surface of the body of the terminal block assembly.

One side of the body of the pipe expanding terminal component comprises a limiting groove, one side of the carrier comprises a limiting part, and the limiting part penetrates through the carrier and extends into the limiting groove.

One side of the body of the pipe expanding terminal component comprises a plurality of positioning holes, the carrier is provided with an elastic positioning component opposite to the positioning holes, the pipe expanding terminal component changes the position or the angle relative to the carrier, and the elastic positioning component is used for combining different positioning holes.

After one positioning hole is combined with the elastic positioning assembly, the surface of the body of the pipe expanding terminal assembly is just opposite to the port of the pipe fitting so as to limit the pipe fitting to move into the body and form a reference position when the pipe fitting receives expansion subsequently.

The body of the pipe expanding terminal component comprises a plurality of terminal holes penetrating through the structure, a spring is arranged in each terminal hole, a terminal is arranged in each terminal hole, and the terminal can elastically move by abutting against the spring.

The carrier comprises a rotary groove, the rotary groove is positioned at one end of the carrier and is adjacent to and communicated with the terminal group containing groove, the pipe expanding driver comprises a shaft block, and the shaft block is positioned at one end of the pipe expanding driver and is used for being embedded into the rotary groove.

The invention has the beneficial effects that: the pipe expanding assembly structure has the advantages that the effect of avoiding replacing the terminal can be achieved by switching the modes, and the effects of applying the pipe expanding effect on a pipe fitting and enabling the end part of the pipe fitting to form different shapes are met.

Drawings

Fig. 1 is an external view of a first embodiment of the present invention.

Fig. 2 is an external view of a second embodiment of the present invention.

Fig. 3 is an external view of a third embodiment of the present invention.

Fig. 4 is an exploded view of the first embodiment of the present invention.

FIG. 5 is an assembled external view of the carrier, the tube clamping assembly and the tube expanding terminal assembly according to the first embodiment of the present invention.

FIG. 6 is a schematic view of an assembly structure of a carrier, a tube clamping assembly and a tube expanding terminal assembly according to a first embodiment of the present invention.

Fig. 7 is an external view of a body of a flared terminal assembly according to a first embodiment of the present invention.

FIG. 8 is a first schematic view illustrating a position of the expander terminal assembly relative to the carrier according to the first embodiment of the present invention.

FIG. 9 is a second schematic view illustrating a position of the expander terminal assembly relative to the carrier according to the first embodiment of the present invention.

FIG. 10 is a schematic view illustrating a position and a state of the expanding terminal assembly for stopping the pipe according to the first embodiment of the present invention.

FIG. 11 is a schematic view illustrating a displacement state of a barrel terminal assembly according to the first embodiment of the present invention.

FIG. 12 is a sectional view of the enlarged tube terminal assembly and the carrier assembly according to the second embodiment of the present invention.

FIG. 13 is a plan view of a third embodiment of the present invention.

Reference numerals: 10: a pipe expanding assembly; 12: a pipe fitting; 14: a pipe expanding driver; 16: a tightening assembly; 18: a shaft block; 20: a carrier; 22: a clamping tube group accommodating groove; 23: a rotating tank; 24: a terminal group accommodating groove; 25: perforating; 26: a port; 27: a limiting member; 28: a window; 29: an elastic positioning member; 30: a tube clamping assembly; 32: a tube clamping block; 40: a tube expanding terminal assembly; 42: a terminal; 44: a body; 46: a terminal hole; 47: a limiting groove; 48: a spring; 49: and (7) positioning the holes.

Detailed Description

Referring to FIGS. 1, 2 and 3, the present invention discloses a pipe expander assembly 10 for holding a pipe 12 and relative to a pipe expander drive 14. The expander assembly 10 includes a pinch tube assembly 30 and an expander terminal assembly 40 mounted to a carrier 20. Wherein the carrier 20 is connected to the expander driver 14, and the tube clamping assembly 30 is used for clamping the tube 12.

A packing assembly 16 is mounted on one side of the carrier 20 and has an end opposite the tube clamping assembly 30. One end of the tightening assembly 16 is used to tightly abut against the pipe clamping assembly 30, so that the pipe 12 clamped by the pipe clamping assembly 30 can be stably positioned.

The expander drive 14 includes a shaft block 18. The shaft block 18 is located at one end of the expander driver 14 for engaging a rotary slot 23 at one end of the carrier 20. It is noted that the expander driver 14 may be an oil hydraulic device, a pneumatic device or a screw device, and the expander driver 14 has a force-applying member (not shown) located in the axial direction of the shaft block 18 for opposing and pushing a terminal 42.

In the device disclosed in the above figures, the position or angle of the expanding terminal assembly 40 relative to the carrier 20 can be changed by applying a force, so that a user can select different terminals 42 of the expanding terminal assembly 40 relative to a port of the tube 12 and the expanding driver 14, and the end of the tube 22 can be formed into different outer diameters or shapes under the action of the different terminals 42.

Referring to fig. 4 and 5, a carrier 20 of a first embodiment of the present invention has a clamping tube set receiving slot 22 and a terminal set receiving slot 24. A through opening 26 (see fig. 4) is formed between the tube clamping set receiving groove 22 and the terminal set receiving groove 24, so that the tube clamping set receiving groove 22 communicates with the terminal set receiving groove 24.

The carrier 20 includes a window 28, and the window 28 is a through structure and is opposite to the terminal set receiving slot 24. The rotation slot 23 is located at one end of the carrier 20 and is adjacent to and in communication with the terminal set receiving slot 24. For example, a through hole 25 is formed between the rotation groove 23 and the terminal block accommodation groove 24, so that the rotation groove 23 communicates with the terminal block accommodation groove 24 through the through hole 25.

The tube clamping block assembly 30 includes two tube clamping blocks 32 that can be brought together. The two tube clamping blocks 32 are used for clamping the tube 12. The two tube clamping blocks 32 are installed in the tube clamping set accommodating groove 22.

Referring to fig. 4 and 6, the flared terminal assembly 40 has a plurality of terminals 42 mounted inside a body 44. In particular, the body 44 has a plurality of terminal holes 46, and each of the terminal holes 46 is provided with a spring 48. The terminals 42 are respectively mounted in the terminal holes 46 against the springs 48, so that the terminals 42 are elastically displaceable.

The enlarged tube terminal assembly 40 is movably mounted in the terminal assembly receiving slot 24. One end of the terminal 42 is opposite to one end of the tube 12. So that a part of the surface of the barrel terminal assembly 40 is visible through the window 28 (see fig. 5).

For example, the surface of the body 44 shown in fig. 5 may be marked with words, symbols or patterns to show the corresponding type, size or current position of the terminal 42, and the user can easily read the words, symbols or patterns from the window 28.

Referring to fig. 7, one side of the body 44 of the flared terminal assembly 40 includes at least one limiting slot 47, and the embodiment discloses two limiting slots 47. And one side of the body 44 of the enlarged tube terminal assembly 40 includes a plurality of positioning holes 49. The limiting groove 47 and the terminal hole 46 are not in the same plane.

Referring to fig. 4 and 8, one side of the carrier 20 includes at least one limiting element 27, and two limiting elements 27 are illustrated. One side of the carrier 20 includes a resilient positioning element 29. Although the position-limiting member 27 is illustrated as a bolt and the elastic positioning member 29 is illustrated as a combination of a spring, a steel ball and a stop screw, the illustrated components and combinations are only exemplary and not intended to be limiting.

Referring to fig. 8 and 9, the flared terminal assembly 40 is movably mounted in the terminal assembly receiving slot 24 of the carrier 20. The position-limiting member 27 is mounted on the bottom surface of the carrier 20, and one end of the position-limiting member 27 can be used to be opposite to and embedded in the position-limiting groove 47. So that the flare terminal assembly 40 can move without being separated from the carrier 20. The elastic positioning element 29 is mounted on the bottom surface of the carrier 20 and can be opposite to the positioning hole 49, so that when the tube expanding terminal assembly 40 moves to a predetermined position, one end (steel ball) of the elastic positioning element 29 can be clamped in the corresponding positioning hole 49, so that the tube expanding terminal assembly 40 is positioned.

Referring to fig. 10 and the accompanying description, the present invention discloses that the expanding terminal assembly 40 can be driven to move and obtain positioning. Thus, selecting a predetermined position such that a locating hole of the body 44 is located in combination with the elastic locating component (not shown) allows a side partial surface of the body 44 (e.g., the surface between two terminal holes) to be aligned with the port of the tube 12.

According to the condition and position disclosed in fig. 10, the surface of the body 44 is adapted to limit the movement of the pipe 12 into the body 44, which is a reference position for subsequent pipe expansion, so that an accurate pipe expansion length can be determined at one end of the pipe 12. Whether the barrel terminal assembly 40 is moved to the reference position or not can be determined by the window 28 seeing the characters, symbols or patterns marked on the surface of the body 44.

Referring to fig. 11, the expanding terminal assembly 40 is forced to move, so that two ends of any one of the terminals 42 in the main body 44 are opposite to the pipe 12 in the expanding driver 14 and the pipe clamping assembly 30, respectively. The force-out member of the expander driver 14 is configured to urge the terminal 42 to displace toward the end of the tube 12 when the operator actuates the expander driver 14.

Since each of the terminals 34 can provide different expansion, such as changing the outer diameter or profile of the port of the tube 12, the operator can perform the expansion of the end of the tube 22 in a quick and easy mode of operation by appropriately switching the position of the expansion terminal assembly 40 and selecting a different terminal 42.

Referring to fig. 2 and 12, the difference between the second embodiment and the first embodiment of the present invention is that the body 44 of the flared terminal assembly 40 is an arc-shaped long block-shaped member, and the terminal set accommodating slot 24 of the carrier 20 forms an arc-shaped slot to conform to the arc-shaped body 44. Thus, the expander terminal assembly 40 is movably mounted in the terminal assembly receiving slot 24, and the body 44 is forced to move in an arcuate path to allow different ones of the terminals 42 to be moved relative to the tube 12 and the expander drive 14 (see FIG. 2).

Referring to fig. 3 and 13, the difference between the third embodiment and the first embodiment of the present invention is that the body 44 of the flared terminal assembly 40 is a disc-shaped member, and the disc-shaped body 44 is rotatably installed in the terminal set receiving slot 24. The terminal receiving cavity 24 is an open notch that extends through the carrier 20, and the disc-shaped body 44 can be fitted with a suitable rotating shaft to fit into the terminal set receiving cavity 24 in the form of an open notch. The body 44 is forced to rotate so that different ones of the terminals 42 are rotated relative to the tube 12 and the expander driver 14 (see fig. 3).

The positioning of the enlarged tube terminal assembly 40 after moving/rotating and the technical means of the body 44 without departing from the carrier 20 of the second and third embodiments of the present invention can be achieved by referring to the means taught by the first embodiment.

Second, according to the disclosure of the various embodiments, the barrel terminal assembly 40 is mounted in the terminal-receiving slot 24 such that the body 44 is restrained from significant displacement relative to the walls of the terminal-receiving slot 24; in other words, the tube expanding driver 14 acts on the terminal 42 to make the terminal 42 and the body 44 generate relative displacement, and the terminal 42 is forced to displace for tube expansion.

The above embodiments and design drawings are only illustrative and not intended to limit the scope of the present invention, which is defined by the appended claims, and all such modifications and variations are within the scope of the invention as determined by the following claims.

Claims

1. A pipe expansion assembly structure for clamping a pipe fitting and a relative pipe expansion driver, characterized in that it comprises:

a carrier, which has a clamping group accommodating groove and a terminal group accommodating groove;

a clamp assembly, installed in the clamp assembly accommodating groove of the carrier to clamp the pipe;

a tube-expanding terminal assembly, which is matched with a plurality of terminals inside a main body, and the main body is installed in the terminal group accommodating groove of the carrier;

One side of the body of the expanded tube terminal assembly includes a limiting groove, and one side of the carrier includes a limiting member, and the limiting member is used to extend into the limiting groove;

The expanded tube terminal assembly is subjected to a force to generate a movement pattern to change one of the positions or angles of the body and each terminal relative to the terminal group accommodating groove, and the movement mode is used to select the position or angle of the expanded tube terminal assembly. The terminal is different from a port of the pipe piece and the pipe expanding driver.

2 . The pipe expansion assembly structure according to claim 1 , wherein the body of the pipe expansion terminal assembly is an elongated block member and is movably installed in the terminal group accommodating groove, and the body The force can produce linear displacement so that the different terminals are relative to the pipe and the pipe expansion driver.

3 . The structure of the pipe expansion assembly according to claim 1 , wherein the body of the pipe expansion terminal assembly is an arc-shaped elongated block member and is movably installed in the terminal group accommodating groove, the The displacement of the arc-shaped trajectory can be generated by the force of the body, so that the different terminals are relative to the pipe fitting and the pipe expanding driver.

4 . The structure of the tube expansion assembly according to claim 1 , wherein the body of the tube expansion terminal assembly is a disc-shaped member and is rotatably installed in the terminal group accommodating groove, and the body is subject to 4 . The force can generate rotation to cause the different terminals to be relative to the tube and the expander driver.

5. The structure of claim 1, wherein the carrier comprises a viewing window, the viewing window is opposite to the terminal group accommodating groove, and the terminal block assembly can be seen through the viewing window. part of the surface of the body.

6 . The structure of the pipe expansion assembly according to claim 1 , wherein one side of the main body of the pipe expansion terminal assembly comprises a plurality of positioning holes, and the carrier is configured with an elastic positioning element opposite to the positioning holes. 7 . , the position or angle of the expanded tube terminal assembly relative to the carrier can be changed, and the elastic positioning member is used for combining different positioning holes.

7 . The pipe expansion assembly structure according to claim 6 , wherein after one of the positioning holes is combined with the elastic positioning assembly, the surface of the body of the pipe expansion terminal assembly is just opposite to the pipe fitting. 8 . The port is so as to limit the movement of the pipe into the body, so as to form the reference position when the pipe is subsequently expanded.

8 . The pipe expansion assembly structure of claim 1 , wherein the body of the pipe expansion terminal assembly comprises a plurality of terminal holes in a through structure, each of the terminal holes is provided with a spring inside, and each of the terminals A terminal is arranged in the hole, and the terminal can be elastically displaced by abutting against the spring.

9 . The pipe expansion assembly structure of claim 1 , wherein the carrier comprises a rotation slot, the rotation slot is located at one end of the carrier and is adjacent to and communicated with the terminal group accommodating slot, the The pipe-expanding driver includes a shaft block, which is located at one end of the pipe-expanding driver and is used for inserting into the rotating groove.