TW201720546A - Tube expander - Google Patents

Abstract

A tube expander is provided, including: a tube support assembly, provided with at least one clamping hole and at least one engaging mechanism, the engaging mechanism for being controlled by hand to withdraw or protrude on a surface of the tube support assembly; an expanding mechanism, including a looper structure and an expanding head movable toward the tube support assembly, the looper structure movably sleeved on the tube support assembly; wherein when the engaging mechanism is protruded on the surface of the tube support assembly, the looper structure is stuckable to the engaging mechanism along a moving direction.

Description

Expander

The present invention relates to expanders, and more particularly to a expandable expander.

The structure of the general expander is disclosed in the patent TWM256241, which comprises at least one body and two clamping blocks. The two clamping blocks are formed with slots and can be correspondingly disposed at the bottom of the body. There is a bolt that can be rotated up and down. Another way, as shown in TWM508371, is to use the spring to automatically raise and lower. However, there is no problem in the entering process. However, in the process of disengagement, two-hand operation is required. It is necessary to continuously press the column until the block is passed. It can obviously be released, which is obviously inconvenient in operation. Therefore, how to improve the stop structure of the expander to have easy positioning and operation is also the goal of the research of the present invention.

Therefore, it is necessary to provide a novel and progressive expander to solve the above problems.

The main object of the present invention is to provide a pipe expander which can be manually operated to generate a click function, which can avoid falling off during construction work, avoiding danger and construction inconvenience; and being operable to be positioned at different positions, It is convenient for users to operate and easy to use.

To achieve the above object, the present invention provides a pipe expander comprising: a pinch tube assembly having at least one clamping hole and at least one latching mechanism, the latching mechanism being manually operable to retract or protrude from the a surface of the pinch assembly; a pipe expansion mechanism comprising a set of port structure and a reaming head movable toward the pinch tube assembly, the cuff structure being movably sleeved on the pinch tube assembly; wherein, when the card is When the 掣 mechanism is protruded from the surface of the pinch tube assembly, the ferrule structure can interfere with the latching mechanism in a moving direction.

1‧‧‧ Expander

10‧‧‧Pinch assembly

11‧‧‧Clamping holes

20‧‧‧Extension mechanism

21‧‧‧ socket structure

211‧‧‧ inner side wall

12‧‧‧Carton institutions

13‧‧‧ card

14‧‧‧Operating parts

141‧‧‧ Large diameter section

142‧‧‧Small path

15‧‧‧ first side

16‧‧‧ second side

17‧‧‧Opening

18‧‧‧First connection block

19‧‧‧Second connection block

212‧‧‧ hole sets

213‧‧ ‧ rim

22‧‧‧Expanded head

23‧‧‧ Arms

30‧‧‧Chute

31‧‧‧First positioning slot

32‧‧‧Second positioning slot

P1‧‧‧ retracted position

P2‧‧‧ protruding position

1 is a schematic view of a preferred embodiment of the present invention.

Figure 2 is a partial exploded view of the preferred embodiment of the present invention.

Figure 3 is another schematic view of the preferred embodiment of the present invention.

Figure 4 is a cross-sectional view of the preferred embodiment of the present invention.

Figure 5 is a partial schematic view of the preferred embodiment of the present invention.

Figure 6 is another cross-sectional view of the preferred embodiment of the present invention.

The following is a description of the possible embodiments of the present invention, and is not intended to limit the scope of the invention as claimed.

Referring to Figures 1 through 6, there is shown a preferred embodiment of the present invention. A pipe expander 1 of the present invention includes a pinch tube assembly 10 and a pipe expansion mechanism 20.

The pinch tube assembly 10 can be provided with at least one clamping hole 11 and at least one clamping mechanism 12 for holding a pipe member, and the locking mechanism 12 can be manually operated to retract or protrude. On the surface of the pinch assembly 10, for example, the latch mechanism 12 can include, for example, a connection a card member 13 and an operating member 14, more specifically, the card member 13 and the operating member 14 are respectively disposed at one end of the pinch tube assembly 10, and the operating member 14 is manually operable to control the The clip 13 is retracted or protruded from the surface of the pinch tube assembly 10. In this embodiment, the card member 13 can be cylindrical. The operating member 14 can have a large diameter portion 141 and a small diameter portion 142. The operating member 14 can be fixed to the card member 13. For example, the small diameter section 142 can be screwed to the card member 13 to be fixed to each other.

As described above, the pinch tube assembly 10 can include two opposite first side faces 15 and a second side face 16, each of the first side face 15 and the second side face 16 being orthogonal to each other, each of the first side faces. The 15 series extends along a length direction, and the second side surface 16 extends along a width direction. More specifically, the at least one latching mechanism 12 includes two latching mechanisms 12, and the two latching mechanisms 12 are disposed at one end of the clip assembly 10 along the length direction, and the two latching mechanism 12 can be arranged at intervals along the width direction. The pinch tube assembly 10 can be provided with two openings 17 so that the card members 13 can be slidably disposed on the openings 17 .

The expansion mechanism 20 can include a set of port structures 21 and a reaming head 22 movable toward the pinch tube assembly 10, the cuff structure 21 being movably sleeved on the pinch tube assembly 10, the tube expansion tube The mechanism 20 can have two arm portions 23 that are spaced apart, and the two arm portions 23 can surround the cuff structure 21. Further, when the latching mechanism 12 protrudes from the surface of the pinch tube assembly 10, the sleeve structure 21 can interfere with the latching mechanism 12 in a moving direction, and more specifically, the sleeve The mouth structure 21 can include, for example, a sleeve hole 212 that is consistently disposed, and at least one end of the sleeve hole 212 can be provided with a rim 213, for example, such that the latching mechanism 12 can be engaged with the rib 213.

In actual use, the operating member 14 is operable to be positioned at a retracted position P1 and a protruding position P2. When the operating member 14 is located at the retracted position P1, the engaging member 13 can be embedded in the collet assembly 10 a surface of the card member 13 when the operating member 14 is located at the protruding position P2 It may protrude from the surface of the pinch tube assembly 10. Further, the pinch tube assembly 10 can be provided with a sliding slot 30. The operating member 14 can be slidably disposed on the sliding slot 30, and one end of the operating member 14 can be protruded from the outer side of the sliding slot 30. Specifically, the large diameter section 141 of the operating member 14 can be located on one side of the sliding slot 30 and exposed outwardly for user operation.

The slot 30 can include a first positioning slot 31 and a second positioning slot 32. The opening 17 can communicate with the corresponding first positioning slot 31 and the second positioning slot 32. The first positioning slot 31 can be defined in the first side surface 15 , and the second positioning slot 32 can be defined in the second side surface 16 . Further, the card member 13 has an axial direction, and the user can manually operate the operating member 14 so that the operating member 14 and the card member 13 can pivot about the axial direction, and the operating member 14 can be The operation member 14 is positioned at the retracted position P1 when the operation member 14 is embedded with the first positioning groove 31, when the operation member 14 is embedded in the first positioning groove 31. When the piece 14 is embedded in the second positioning groove 32, the operating member 14 is positioned at the protruding position P2, which is convenient for the user to operate and convenient to use.

Further, the card member 13 is movable in a protruding direction transverse to the moving direction, and the first positioning groove 31 and the second positioning groove 32 are spaced apart from each other along the protruding direction. Therefore, when the user operates the operating member 14 to move from the first positioning slot 31 to the second positioning slot 32, the card member 13 can be controlled to move along the protruding direction to protrude from the surface of the pinch tube assembly 10. It is worth mentioning that when the user operates the operating member 14 to move and position the second positioning slot 32, the card member 13 can be engaged with the socket structure 21 so that the pinch tube assembly 10 does not The sleeve structure 21 is detached from each other, and the pinch tube assembly 10 can be prevented from being detached from the pipe expansion mechanism 20 during construction work, thereby avoiding danger and construction inconvenience.

The sleeve structure 21 can have opposite inner side walls 211, each of which The side wall 211 faces each of the first side faces 15 , and the two inner side walls 211 respectively extend obliquely along the moving direction, and a spacing distance between the two inner side walls 211 is selectively divergent toward the moving direction. The pinch tube assembly 10 can have a first connecting block 18 and a second connecting block 19 that can be pivoted. When the first connecting block 18 and the second connecting block 19 abut, the pinch tube assembly 10 Having a width smaller than the separation distance, and further, when the user wants to take out the pinch tube assembly 10 from the cuff structure 21, the operation member 14 can be operated to move to the first positioning groove 31, and then The first connecting block 18 and the second connecting block 19 are pivoted relative to each other by a predetermined angle, so that the pinch tube assembly 10 can be taken out from the socket structure 21.

In summary, the pipe expander of the present invention can be manually operated to generate the function of the click, which can avoid falling off during construction work, avoiding danger and inconvenient construction; in addition, it can be operated and positioned in different positions, conveniently The user's operation and use are simple and convenient.

In summary, the overall structural design, practicability and efficiency of the present invention are indeed fully in line with the needs of industrial development, and the disclosed structural invention is also an unprecedented innovative structure, so it has "novelty" should Undoubtedly, the invention can be more effective than the conventional structure, and therefore has "progressiveness", which fully complies with the requirements of the application requirements of the invention patents of the Chinese Patent Law, and is filed according to law, and please The bureau will review it early and give it affirmation.

1‧‧‧ Expander

13‧‧‧ card

212‧‧‧ hole sets

213‧‧ ‧ rim

P2‧‧‧ protruding position

Claims (9)

A pipe expander comprising: a pinch tube assembly, at least one clamping hole and at least one latching mechanism, the latching mechanism being manually operable to retract or protrude from a surface of the pinch tube assembly; The mechanism includes a set of port structure and a reaming head movable toward the pinch tube assembly, the cuff structure being movably sleeved on the pinch tube assembly; wherein when the latching mechanism protrudes from the pinch tube assembly The cover structure can interfere with the latch mechanism in a moving direction. The expander of claim 1, wherein the latching mechanism comprises a connected card member and an operating member, the card member and the operating member are disposed at one end of the pinch tube assembly, and the operating member is manually operable The operation controls the card to retract or protrude from the surface of the pinch tube assembly. The expander of claim 2, wherein the sleeve structure comprises a sleeve hole that is consistently disposed, and at least one end of the sleeve hole is provided with a retaining edge, and the clip member can be engaged with the retaining edge. The expander of claim 3, wherein the operating member is operable to be positioned in a retracted position and a protruding position, and when the operating member is in the retracted position, the card is embedded in the surface of the collet assembly When the operating member is in the protruding position, the card protrudes from the surface of the pinch tube assembly. The expander of claim 4, wherein the pinch tube assembly defines a sliding slot, and the operating member is slidably disposed on the sliding slot, the sliding slot includes a first positioning slot and a second positioning slot connected to each other. The operating member is selectively embedded in the first positioning slot or the second positioning slot. When the operating member is embedded with the first positioning slot, the operating member is positioned in the retracted position, when the operating member is When the second positioning groove is embedded, the operating member is positioned at the protruding position. The expander of claim 5, wherein the operating member and the card member are fixed to each other, the operating member One end is protruded from the outer side of the chute. The expander according to claim 6, wherein the card member is movable in a protruding direction transverse to the moving direction, and the first positioning groove and the second positioning groove are spaced apart from each other along the protruding direction. Settings. The expander of claim 5, wherein the pinch tube assembly comprises at least one first side and at least one second side, the first side and the second side being orthogonal to each other, the first positioning slot being opened In the first side, the second positioning groove is formed on the second side. The expander of claim 8, wherein the pipe expanding mechanism has two arm portions arranged at intervals, the two arm portions surrounding the socket structure, the socket structure having two inner side walls disposed opposite to each other The inner side walls respectively extend obliquely along the moving direction, and a spacing distance between the two inner side walls is selectively divergent toward the moving direction, and the pinch tube assembly has two opposite first side faces, each of the inner side wall faces Each of the first side faces extends along a length direction, and the second side face extends along a width direction, and the at least one latching mechanism includes two latching mechanisms, the two cards The 掣 mechanism is disposed at one end of the pinch tube assembly along the length direction, and the two latching mechanisms are arranged at intervals along the width direction, and the pinch tube assembly has a first connecting block and a pivotable a second connecting block, when the first connecting block and the second connecting block are in abutment, the pinch tube assembly has a width smaller than the spacing distance, and the pinch tube assembly is provided with two openings, each of the card members Sliding on each of the openings, each of the openings Correspondingly, the first positioning slot and the second positioning slot are in communication, each of the clips is cylindrical, each of the clips has an axial direction, and each of the operating members and each of the latches can pivot about the axial direction Each of the operating members has a large diameter section and a small diameter section, and the small diameter section is screwed to the card member, and the large diameter section is located on one side of the sliding slot and is exposed outward.