TWI523722B - A pipe structure having a terminal connecting element - Google Patents

Description

Pipe structure with end connectors

The present invention provides a tubular structure having an end connector that is related to the structure of the tubular.

Generally, as shown in the first and second figures, the vertically joined round pipe member 10 is directly welded to the joint at the joint of the two round pipe members 10, and the welding method is mostly performed by welding the consumable welding rod with the arc welding. Since the two pipe members 10 are all round pipe fittings, in addition to the need to stabilize the joint position of the two pipe members 10 in the welding process, the welding method required to cooperate with the welding rods leads to an increase in the difficulty of welding, resulting in low welding efficiency and improvement. The lack of production cost; at the same time, such a joint method will produce a distinct and uneven weld bead X at the joint, which obviously affects the appearance after joining; In addition, the joined pipe member 10 will concentrate on the welded joint when subjected to stress, that is, the weld bead X will have to withstand great stress, and the two pipe members 10 are extremely susceptible to damage caused by the joint breakage; In view of this, the inventors have diligently studied and further conceived, and after many trials and developments, finally invented a joining method of a pipe member having an end connecting member and a structure thereof.

The present invention provides a tubular structure having an end connector, the main purpose of which is to solve the problem that the two vertical jointed tubular members made by the conventional joining method are unsightly and easily damaged and have a low service life.

In order to achieve the above object, the present invention provides a tubular structure having an end connecting member, comprising: an end connecting member formed by forming a second engaging portion at one end of a first engaging portion, and the first engaging portion has a Wearing a sleeve; and the second joint is formed by the sleeve opening, and the extending direction of the second joint is perpendicular to the extending direction of the first joint; and a pipe member, a hollow pipe structure, the pipe member One end has a port, and the port of the tube member is overlaid on the first joint portion of the end connector, so that the circumferential surface of the tube member abuts against the first joint portion of the end connector and is fusion-bonded, and the first portion The two joints are adapted to engage another tubular member.

The tubular members are joined by the end joints, and the first joint portion is abutted against the circumferential surface of the tubular member, and the end joints and the tubular members are joined by spot welding to make the outer circumference of the tubular member The rough weld bead is not produced, and the aesthetic effect is maintained; and each of the pipe members can be joined to the first joint portion and the second joint portion in a surface joint manner, and the joint strength is high to improve the service life.

In order to enable the reviewing committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please refer to the following [detailed description of the drawings] as follows: The joining method of the tubular structure of the present invention having the end connecting member A preferred embodiment, as shown in Figures 4 through 8, is primarily provided with a resistance spot welder 20 having a positioning fixture 21 for engaging an end connector 30 and a tubular member 40, the bonding method comprising: end connection Positioning step A, the positioning is fixed on the resistance spot welding machine 20 The fixture 21 is formed by forming a sleeve portion 212 on the abutting portion 211. The abutting portion 211 of the embodiment is perpendicular to the sleeve portion 212, and the sleeve portion 212 is a cylindrical structure, and the end of the first joint portion 31 is formed by a second joint portion 32, and the first joint portion 31 is a complete annular structure and has a sleeve 311; The second joint portion 32 is formed as an arc-shaped sheet extending from the sleeve opening 311. The extending direction of the second joint portion 32 is perpendicular to the extending direction of the first joint portion 31, and the second joint portion 32 is extended. The other connecting member 50 is engaged; the end connecting member positioning step A is to pass the end connecting member 30 through the wearing portion 311 of the first engaging portion 31 to the wearing portion 212 of the positioning jig 21 and The second engaging portion 32 abuts against the abutting portion 211, as shown in Fig. 5; the tube positioning step B, one end of the tube member 40 has a port 41, and the tube positioning step B is the port 41 of the tube member 40. Wearing the first joint portion 31 of the end connector 30 on the sleeve portion 212 of the positioning fixture 21 to make the first joint of the end connector 30 31 is abutted against the inner circumferential surface of the pipe member 40, as shown in Fig. 6; in the spot welding step C, the resistance spot welding machine 20 has a welding electrode 22, and the welding electrode 22 of the resistance spot welding machine 20 is touched. The outer peripheral surface of the pipe member 40 is spot-welded at a position corresponding to the end connecting member 30 by electric current and pressure, as shown in Fig. 7.

The tube structure formed by the above-mentioned joining method is as shown in FIG. 8 and includes: one end connecting member 30, a second joint portion 32 is formed by one end of a first joint portion 31, and the first joint is formed. The portion 31 is a complete annular structure and has a sleeve 311. The second joint portion 32 is formed by the sleeve opening 311 as an arcuate sheet, and the second joint portion 32 extends perpendicularly. The first joint portion 31 And a tube member 40 having a hollow tube structure, and the tube member 40 has a port 41 at one end thereof, and the port 41 of the tube member 40 is overlapped and sleeved on the first joint portion 31 of the end connector 30, so that the tube member The inner peripheral surface of 40 is abutted against the first joint portion 31 of the end joint 30 and is fusion-bonded, and the second joint portion 32 is provided to engage another tubular member 50.

The above is the joining method of the pipe fitting having the end connecting member of the present invention and the structure thereof, and the method of joining the pipe fitting 40 and the end connecting member 30 of the present invention is performed by using the resistance spot welding machine 20 provided with the positioning jig 21, Therefore, in the process of joining, the end connecting member 30 and the pipe member 40 can be positioned at the engaging position by the positioning of the positioning jig 21, so that the spot welding work can be easily performed, and the difficulty of the joining work can be greatly reduced. At the same time, it is also possible to simultaneously improve the production efficiency of the joining work, reduce the production cost, and create a higher economic benefit; and the first joint portion 31 of the end connecting member 30 of the pipe structure made by the above joining method penetrates the pipe member 40. Then, it is joined by spot welding, so that the outer surface of the pipe member 40 does not have an uneven bead, so that the appearance of the pipe member 40 can be maintained; and the second joint portion 32 of the end connector 30 is provided. The other tubular member 50 is joined, and the two tubular members 40, 50 are engaged through the end connecting member 30. The first engaging portion 31 of the end connecting member 30 engages the tubular member 40 with a complete circumferential surface, and is second. Joint 3 2, the outer peripheral surface of the other tubular member 50 is joined, and the two tubular members 40, 50 are joined to the end connecting member 30 in a surface contact manner, so that the joint strength of the structure can be improved and stress concentration and damage can be effectively prevented. Can effectively improve the service life.

In addition, as shown in the figures 9 to 11, after the pipe joint 40 and the end connecting member 30 are joined by the spot welding step C of the above embodiment, a hollow pipe structure can be further disposed outside the pipe member 40. The reinforcing member 60 is again subjected to spot welding after being passed through the reinforcing member 60, as shown in Fig. 10, whereby the inner surface of the tubular member 40 is joined to the end connecting member 30, and the outer surface of the tubular member 40 is joined. The reinforcing member 60, as shown in FIG. 11, makes the combination of the tube member 40 and the end connecting member 30 more stable, and further improves the stability of the structure; further, in addition to the above-mentioned reinforcing member 60 is worn over In addition to the spot welding of the tube member 40, the reinforcing member 60 can be sleeved in the tube member 40, and the end connecting member 30 is sleeved outside the tube member 40, that is, the tube member is firstly sheathed. 40, after the positioning jig 21 is overlapped and overlaid on the end connecting member 30 on the positioning jig 21, the spot welding in this manner can also achieve the same effect as the above embodiment; and can be more as shown in FIG. The end edge of the reinforcing member 60 is formed with a joint edge 61, and the first joint portion 31 of the end joint member 30 and the second joint Between the 32s, the intermediate joint portion 321 of the first-order structure is formed, whereby the reinforcing member 60 is sleeved in the tubular member 40, and the end connecting member 30 is overlapped and sleeved outside the tubular member 40, and The intermediate joint portion 321 is pressed against the joint edge 61 of the reinforcing member 60, and when the joint is welded, the reinforcing member 60, the position at which the tubular member 40 and the first joint portion 31 overlap, and the intermediate joint can be spot welded. The portion 321 overlaps the position of the joint edge, so that the joint strength between the structures can be further improved, and the stability of the structure can be ensured.

"Knowledge Technology"

10‧‧‧ Pipe fittings

X‧‧‧weld

"this invention"

A‧‧‧End connector positioning steps

B‧‧‧ Pipe positioning steps

C‧‧‧ point welding step

20‧‧‧Resistance spot welding machine

21‧‧‧ positioning fixture

211‧‧‧Responsible

212‧‧‧ wearing sets

22‧‧‧ welding electrode

30‧‧‧End connector

31‧‧‧First joint

311‧‧‧ wearing a mouthpiece

32‧‧‧Second joint

321‧‧‧Intermediate joint

40‧‧‧ Pipe fittings

41‧‧‧port

50‧‧‧ pipe fittings

60‧‧‧Reinforcement

61‧‧‧ joint edge

Figure 1 is an exploded perspective view of a conventional circular pipe joint.

Fig. 2 is a schematic perspective view showing the vertical joint of a conventional round pipe member.

Figure 3 is a flow chart showing the steps of the method of joining the tubular members having the end connectors of the present invention.

Fig. 4 is a schematic view showing the respective structures in the joining method of the pipe member having the end connecting member of the present invention.

Fig. 5 is a schematic view showing the step of positioning the end connecting member in the joining method of the pipe member having the end connecting member of the present invention.

Fig. 6 is a schematic view showing the step of positioning a pipe member in the joining method of the pipe member having the end connecting member of the present invention.

Fig. 7 is a schematic view showing the point welding step of the joining method of the pipe member having the end connecting member of the present invention.

Figure 8 is a schematic view showing the structure of a pipe member having an end connecting member of the present invention.

Fig. 9 is a schematic view showing the joining method of the pipe fitting having the end connecting member and the reinforcing member.

Fig. 10 is a schematic view showing the joining method of the joint of the pipe fittings having the end connecting members of the present invention.

Figure 11 is a cross-sectional view showing another embodiment of the pipe member having the end connecting member of the present invention.

Figure 12 is a cross-sectional view showing still another embodiment of the pipe member having the end joint member of the present invention.

20‧‧‧Resistance spot welding machine

21‧‧‧ positioning fixture

211‧‧‧Responsible

212‧‧‧ wearing sets

22‧‧‧ welding electrode

30‧‧‧End connector

31‧‧‧First joint

311‧‧‧ wearing a mouthpiece

32‧‧‧Second joint

40‧‧‧ Pipe fittings

41‧‧‧port

Claims (4)

A tubular structure having an end connecting member, comprising: an end connecting member, wherein a second engaging portion is formed by one end of a first engaging portion, and the first engaging portion has a wearing sleeve; and the second portion The joint portion is formed by extending through the sleeve, and the extending direction of the second joint portion is perpendicular to the extending direction of the first joint portion; and a tubular member having a hollow tubular body structure having a port at one end thereof, the tubular member having a port The port overlaps the first joint of the end connector such that the circumferential surface of the tube abuts against the first joint of the end connector and is fusion-bonded, and the second joint is adapted to engage another Pipe fittings. The tubular structure having an end connector according to claim 1, wherein the first joint portion of the end joint is a complete annular structure, and the second joint portion is a curved sheet body, and The pipe is a round pipe structure. The pipe structure having an end connector according to claim 1, wherein the pipe member is attached to the first joint portion of the end joint member by an inner peripheral surface, and the outer sleeve of the pipe member is joined by a sleeve. Reinforcement of the hollow pipe structure. The pipe structure having an end connector according to claim 1, wherein the pipe member is a first joint portion to which the outer peripheral surface abuts the end joint member, and the inner surface of the pipe member is sleeved and joined. a reinforcing member of a hollow tubular structure, the edge of the reinforcing member is further formed with a joint edge, and an intermediate joint portion of the stepped structure is formed between the first joint portion and the second joint portion, and the intermediate joint portion is pressed The joint is connected to the joint edge of the reinforcing member.