TWM552390U - Tube expander device - Google Patents

Description

Expansion/expansion tube device

This creation is about an expansion/expansion device.

Many piping engineering needs to use expansion tube equipment, such as: construction engineering, hydropower piping engineering, refrigerating air conditioning, etc. The structure of the general pipe expander is disclosed in the patent TWI490056, which mainly comprises a hydraulic device, and has a piston rod which can be reciprocally outwardly protruded at one end, the piston rod has a piston head and a tapered expansion pipe head, and the piston is hydraulically pressed. When the oil is pushed, the piston rod moves outward and protrudes.

As the structure of the expander described above, the piston rod is connected to the body and cannot be detached and replaced, and only the pipe expansion function can be provided. In engineering and manufacturing, it is often necessary to use various types of expansion tubes, expansion tubes and working heads of various sizes in accordance with various needs. Therefore, it is necessary to purchase a plurality of expansion tube devices and expansion tube devices at the same time, so that the user has a heavy burden and carries The lack of convenience is missing.

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

The main purpose of this creation is to provide an expansion/expansion device that can be removed by hand.

In order to achieve the above object, the present invention provides an expansion/expansion device comprising: a body comprising a head and a body, the head being provided with a perforation, the body being provided with a receiving space for communicating one of the perforations The accommodating space can accommodate a clamping tube member; a shaft rod can be directly detached and axially disposed on the through hole, and the shaft rod is provided with a working head that can extend into the accommodating space.

In order to achieve the above object, the present invention further provides an expansion/expansion tube device, comprising: a body comprising a head portion and a body portion, the head portion is provided with a perforation, and the body portion is provided with a connecting one of the perforations a space, the accommodating space is adapted to receive a clamp tube member; a shaft rod includes a body and a working head extending into the accommodating space, the body is axially displaceably disposed on the through hole, and the working head is detachable The grounding group is connected to the body.

The following is a description of possible implementations of the present invention by way of example only, and is not intended to limit the scope of the creation of the present invention.

Referring to Figures 1 to 4, there is shown a preferred embodiment of the present invention. The expansion/expansion device 1 of the present invention comprises a body 10 and a shaft 20.

The base 10 includes a head portion 11 and a body portion 12. The head portion 11 is provided with a through hole 13 which is a screw hole. The shaft rod 20 is provided with a threaded portion 21 which is screwed to the screw hole. The body portion 12 is provided with an accommodating space 14 for communicating with the through hole 13. The accommodating space 14 can accommodate a clamping tube member, and the clamping tube member can be a pinch holder 2, which may be in other embodiments. a pinch portion extending integrally with the seat body; the shaft 20 is directly detachable and axially displaceably disposed on the through hole 13, and the shaft 20 is provided with a working head 22 extending into the accommodating space 14, the working head 22 For example, a head (such as an eccentric cone), a tube head or other working head that can work on a tube member 3 to change the diameter of the tube member 3 can also be a working head of different sizes. Thereby, the shaft 20 can be detached directly from the perforation 13 without any tools.

The base 10 is provided with a column 15 which is connected to the head 11 in a direction opposite to the body 12. In the present embodiment, the tubular string 15 is in communication with the through hole 13 , and the tubular hole of the tubular string 15 is integrally extended to the screw hole of the through hole 13 . The column 15 may be integrally formed with the base 10 or may be assembled to the base 10 to enhance the overall structural strength. The shaft 20 can be stably driven through the column 15.

Referring to Figures 5 to 10, there is shown a second preferred embodiment of the present invention, which differs from the first preferred embodiment in that the shaft 20 further includes a body 23 which is axially displaceable. In the perforation 13, the working head 22 is detachably assembled to the body 23. In other embodiments, the working head 22 and the body 23 can be integrally formed. Thereby, the working head 22 can be directly disassembled, for example to replace different functions (such as pipe expansion, expansion pipe, etc.) or working heads of different sizes.

The expansion/expansion device 1 further includes at least one card member 30. The at least one card member 30 can be a pin, a fastener or a ball, and the working head 22 and the body 23 can be detachably connected, for example, the whole body 23 is detached. The working head 22 can also be detached without leaving the body 23. The number of the at least one card member 30 is plural.

In this embodiment, the body 23 is provided with a plurality of connecting portions 24, and the connecting portion 24 is tubular and has at least one hole 25, the number of the at least one hole 25 is plural, and each of the card members 30 is respectively accommodated. In each of the holes 25, the working head 22 is provided with a plug portion 26 that can be inserted into the assembly portion 24. The plug portion 26 is provided with a circumferential groove 261, and the expansion/expansion tube device 1 further includes a relative The shaft 20 is movably sleeved on the sleeve 40 of the assembly portion 24, and the card member 30 is abutted against the sleeve 40 to controlably engage a portion of the circumferential groove 261 with a portion thereof. Thereby, the working head 22 can be quickly attached and detached to the body 23.

The set of joints 24 is provided with a radially extending first end face 27, and the working head 22 is provided with a second end face 28 which can abut against the first end face 27, so that the working head 22 can be stably operated. Preferably, the expansion/expansion tube device 1 further includes at least one rotating member 50 rotatably disposed on one of the first end surface 27 and the second end surface 28, the number of the at least one rotating member 50 being plural It is also a ball or a roller. In the embodiment, the first end surface 27 is provided with a plurality of holes 271 surrounding an axis, and the balls are respectively disposed in the holes 271, so that the working head 22 can smoothly face the assembly 24 Turn. In addition, one of the first end surface 27 and the second end surface 28 is a first-order convex, and the other is a stepped groove corresponding to the stepped convex. In the embodiment, the first end surface 27 is the stepped groove. The second end face 28 is the stepped protrusion, so that the working head 22 can be stably operated; in other embodiments, the stepped protrusion can at least partially extend into the stepped groove. In detail, the expansion/expansion device 1 further includes an elastic member 60 that elastically abuts the body 23 and the sleeve 40, whereby the sleeve 40 is elastically resettable.

In summary, the shaft 20 can be directly removed from the seat body 10 to replace the other shaft 20a, or the working head 22 can be directly detached from the body 23 to replace the other working head 22a without detaching the shaft. The rod 20 is such that a working head that is simple and quick to replace the demand can be achieved.

1‧‧‧Expansion/expansion device
2‧‧‧Clamping seat
3‧‧‧ Pipe fittings
10‧‧‧ body
11‧‧‧ head
12‧‧‧ Body
13‧‧‧Perforation
14‧‧‧ accommodating space
15‧‧‧ column
20, 20a‧‧‧ shaft
21‧‧‧Threaded section
22,22a‧‧‧Work head
23‧‧‧Ontology
24‧‧‧Team
25‧‧‧ hole
26‧‧‧Interface
261‧‧‧Circle
27‧‧‧ first end face
271‧‧‧ hole slot
28‧‧‧second end face
30‧‧‧ card
40‧‧‧ kit
50‧‧‧Rotating parts
60‧‧‧Flexible parts

1 is a perspective view of a first preferred embodiment of the present invention. Figure 2 is an exploded view of a first preferred embodiment of the present invention. Figure 3 is a cross-sectional view of a first preferred embodiment of the present invention. 4 is another cross-sectional view of a first preferred embodiment of the present invention. FIG. 5 is an exploded perspective view of the shaft of the second preferred embodiment of the present invention. Figure 6 is a cross-sectional view of the shaft of a second preferred embodiment of the present invention. Figure 7 is a diagram showing the state of use of a second preferred embodiment of the present invention. Figure 8 is another cross-sectional view of the shaft of a second preferred embodiment of the present invention. Figure 9 is a cross-sectional view showing a second preferred embodiment of the present invention. Figure 10 is another cross-sectional view of a second preferred embodiment of the present invention.

1‧‧‧Expansion/expansion device

11‧‧‧ head

2‧‧‧Clamping seat

12‧‧‧ Body

10‧‧‧ body

14‧‧‧ accommodating space

Claims (11)

An expansion/expansion device comprises: a body comprising a head and a body, the head is provided with a perforation, and the body is provided with a receiving space connecting the perforation, the receiving space is available for accommodating a pinch member; a shaft rod directly detachable and axially displaceably disposed on the through hole, the shaft rod being provided with a working head extending into the accommodating space. The expansion/expansion tube device of claim 1, wherein the base body is provided with a column that projects the head toward a direction opposite to the body. The expansion/expansion tube device of claim 1, wherein the through hole is a screw hole, and the shaft is provided with a threaded portion that is screwed to the screw hole. The expansion/expansion tube device of claim 1, wherein the shaft further comprises a body, the body being axially displaceably disposed on the through hole, the working head being detachably assembled to the body. The expansion/expansion tube device according to claim 4, wherein the base body is provided with a column protruding from the head in a direction opposite to the body; the through hole is a screw hole, and the shaft is provided with a a screw threadedly disposed on the threaded portion of the screw hole; further comprising at least one card member for detachably connecting the working head and the body; the body is provided with a plurality of connecting portions, the connecting portion is tubular and has at least one hole The at least one card member is disposed in the hole, the working head is provided with a plug portion that can be inserted into the set portion, the plug portion is provided with a circumferential groove, and the movable portion is provided with a movable sleeve relative to the shaft A kit is provided in the set of joints, the card member being abutted against the sleeve and controllably engaging a portion thereof in the circumferential groove. An expansion/expansion device comprises: a body comprising a head and a body, the head is provided with a perforation, and the body is provided with a receiving space connecting the perforation, the receiving space is available for accommodating A clamping member; a shaft comprising a body and a working head extending into the receiving space, the body being axially displaceably disposed on the through hole, the working head being detachably assembled to the body. The expansion/expansion tube device of claim 6, further comprising at least one card member for detachably connecting the working head and the body. The expansion/expansion tube device of claim 7, wherein the body is provided with a plurality of connecting portions, the connecting portion is tubular and at least one hole is provided, and the at least one card member is received in the hole, the working head An insertion portion is provided for inserting the assembly portion, the insertion portion is provided with a circumferential groove, and further includes a sleeve movably sleeved relative to the shaft to the assembly portion, the card member being offset by the sleeve It is controlled to partially engage the circumferential groove with a part thereof. The expansion/expansion tube device of claim 8, wherein the assembly portion is provided with a radially extending first end surface, and the working head is provided with a second end surface that can abut the first end surface. The expansion/expansion tube device of claim 9, further comprising at least one rotating member that is rotatably disposed on one of the first end surface and the second end surface. The expansion/expansion tube device according to claim 10, further comprising at least one card member, wherein the at least one card member is plural in number, detachably connecting the working head and the assembly portion; the assembly portion is tubular and at least A plurality of holes are provided, and the number of the at least one hole is plural, each of the card members is respectively disposed in each of the holes, each of the cards is a ball, and the working head is provided with a plug portion that can be inserted into the set portion The plug portion is provided with a circumferential groove, and further includes a sleeve movably sleeved relative to the shaft rod to the assembly portion, each of the card members being controlled by the sleeve and being partially engaged with the sleeve The circumferential groove; the number of the at least one rotating member is plural and is a ball, the first end surface is provided with a plurality of holes surrounding an axis, and the balls are respectively disposed in each of the holes; the first end face and One of the second end faces is provided with a first-order convex, and the other is provided with a stepped groove corresponding to the stepped convexity; and an elastic member that is elastically biased against the body and the sleeve.