A hose joint buckle positioning piece and buckle positioning method thereof

Abstract

The present invention discloses a hose joint crimping positioning piece, which is arranged on a tube core and a sleeve, wherein the tube core passes through the interior of the sleeve, the tube core includes a first end, and the hose joint crimping positioning piece includes a positioning portion, wherein the first end is accommodated in the positioning portion and the outer circumferential surface of the first end abuts against the radial inner surface of the positioning portion, and the positioning portion is accommodated in the sleeve and the radial outer surface of the positioning portion abuts against the radial inner surface of the sleeve. The present invention adds a positioning piece between the tube core and the sleeve, thereby ensuring that the sleeve and the tube core are on the same axis when the sleeve is crimped onto the tube core, and the sleeve and the tube core will not be offset in the radial direction, thereby preventing the sleeve and the tube core from being eccentric, so that the hose can be smoothly inserted between the tube core and the sleeve in the later stage, thereby reducing the defective product rate, and there is no need to calibrate the position of the tube core and the sleeve after crimping, thereby improving production efficiency.

Description

Technical Field

[0001] The invention relates to a hose joint buckling positioning piece and a buckling positioning method thereof. Background Art

[0002] At present, with the development of engineering construction such as ocean, mining and subway, more and more large-diameter hoses are used in high-pressure environments, and the market demand for large-diameter hoses is gradually increasing. In the production process of large-diameter hose joints, it is necessary to buckle the sleeve on the tube core, and then insert the hose between the tube core and the sleeve, so that the sleeve can fix the hose on the tube core. However, when the sleeve is put on the tube core, due to the gap between the sleeve and the tube core and the long length of the sleeve, and the sleeve is under the action of its own gravity, the sleeve and the tube core are easily eccentric during the buckling process, that is, the sleeve and the tube core are not on the same axis. The hose cannot be inserted between the tube core and the sleeve in the later stage, which will produce a large number of defective products, resulting in increased production costs and unnecessary losses.

[0003] In summary, it is indeed necessary to provide a new hose joint crimping positioning member and a crimping positioning method thereof. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a hose joint buckling positioning piece and a buckling positioning method thereof.

[0005] In order to solve the above technical problems, the present invention provides: a hose joint crimping positioning piece, which is arranged on a tube core and a sleeve, the tube core passes through the interior of the sleeve, the tube core includes a first end, and the hose joint crimping positioning piece includes a positioning portion, the first end is accommodated in the positioning portion and the outer circumferential surface of the first end is against the radial inner surface of the positioning portion, the positioning portion is accommodated in the sleeve and the radial outer surface of the positioning portion is against the radial inner surface of the sleeve.

[0006] The beneficial effects of the present invention are as follows: the hose joint crimping positioning piece and the crimping positioning method of the present invention add a positioning portion between the tube core and the sleeve, thereby ensuring that the sleeve and the tube core are always on the same axis when the sleeve is crimped onto the tube core, and the sleeve and the tube core will not be offset in the radial direction, thereby preventing eccentricity between the sleeve and the tube core. The hose can then be smoothly inserted between the crimped tube core and the sleeve, thereby reducing the defective product rate, and there is no need to calibrate the positions of the tube core and the sleeve after crimping, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a cross-sectional view of the buckling and positioning piece of the hose joint of the present invention. DETAILED DESCRIPTION

[0008] The following is a clear and complete description of the hose joint buckle positioning member and the buckle positioning method of the present invention in conjunction with the accompanying drawings.

[0009] like Figure 1 As shown, the hose joint buckling positioning member 3 is arranged between the tube core 1 and the sleeve 2, and includes a positioning portion 31 and a holding portion 32 arranged on the positioning portion 31.

[0010] like Figure 1 As shown, the tube core 1 includes a first end 11 and an annular groove 12 disposed on its outer circumferential surface in a direction away from the first end 11. The sleeve 2 includes a buckling portion 21 disposed corresponding to the annular groove 12 and a second end 22 disposed corresponding to the first end 11. The first end 11 of the tube core 1 passes through the interior of the sleeve 2 from the buckling portion 21 of the sleeve 2. The annular groove 12 is formed by being recessed from the outer circumferential surface of the tube core 1 in the radial direction toward the central axis of the tube core 1. Before buckling, the diameter of the inner circumferential surface of the annular groove 12 is smaller than the diameter of the outer circumferential surface of the tube core 1. The diameter of the outer circumferential surface of the tube core 1 is smaller than the diameter of the inner circumferential surface of the buckling portion 21 before buckling. The buckling portion 21 is buckled in the annular groove 12.

[0011] like Figure 1As shown, the positioning portion 31 is a cylinder, and one end of the positioning portion 31 is provided with an opening. The positioning portion 31 can also be at least three support rods that are arranged in a circumferential direction, so as to provide a stable positioning and support function for the first end portion 11 and the second end portion 22 to prevent them from being eccentric. The first end portion 11 is received in the positioning portion 31, and the outer circumferential surface of the first end portion 11 abuts against the radial inner surface of the positioning portion 31. The positioning portion 31 is received in the second end portion 22 of the sleeve 2, and the radial outer surface of the positioning portion 31 abuts against the radial inner surface of the sleeve 2. Before buckling, the outer circumferential surface of the tube core 1 abuts against the radial inner surface of the positioning portion 31 and the radial outer surface of the positioning portion 31 abuts against the radial inner surface of the second end 22 of the sleeve 2, and the diameter of the radial inner surface of the buckling portion 21 is greater than the diameter of the inner circumferential surface of the annular groove 12, so that there is a gap between the buckling portion 21 and the annular groove 12. After buckling, the buckling portion 21 is buckled in the annular groove 12, that is, the diameter of the radial inner surface of the buckling portion 21 is reduced, and at the same time, the diameters of the first end 11, the positioning portion 31, and the second end 22 remain unchanged, thereby ensuring that the sleeve 2 and the tube core 1 are always on the same axis A-A', preventing the tube core 1 and the sleeve 2 from being eccentric due to buckling during the buckling process, thereby reducing the product defect rate and reducing the production cost. After buckling, the positioning portion 31 can be pulled out by holding the gripping portion 32. The gripping portion 32 is welded to the positioning portion 31, and the gripping portion 32 and the positioning portion 31 can be integrally arranged or connected in other ways. The invention is not only applicable to large-caliber hoses, but also to ordinary-caliber hoses.

[0012] The present invention provides a method for crimping and positioning a hose joint, which is used to crimp a sleeve 2 onto a tube core 1, wherein the tube core 1 includes a first end 11 located at one end thereof and an annular groove 12 disposed on an outer circumferential surface of the tube core 1, and the sleeve 2 includes a crimping portion 21 opposite to the annular groove 12 and a second end 22 opposite to the first end 11. The method for crimping and positioning a hose joint further includes a crimping and positioning member for the hose joint, wherein the crimping and positioning member for the hose joint includes a positioning portion and a gripping portion disposed on the positioning portion, and the method for crimping and positioning a hose joint includes the following steps:

[0013] Step 1: First, the tube core 1 is passed through the interior of the sleeve 2, and the buckling portion 21 of the sleeve 2 is aligned with the annular groove 12, and there is a gap between the buckling portion 21 and the annular groove 12;

[0014] Step 2: Then, the first end 11 of the tube core 1 is accommodated in the positioning portion 22, and the outer circumferential surface of the tube core 1 is pressed against the radial inner surface of the positioning portion 31, the positioning portion 31 is accommodated in the second end 22, and the radial outer surface of the positioning portion 31 is pressed against the radial inner surface of the sleeve 2, at which time the tube core 1 and the sleeve 2 are on the same central axis;

[0015] Step 3: Then press the pressing portion 21 of the sleeve 2 into the annular groove 12 of the tube core 1, and then remove the positioning portion 31;

[0016] Step 4: End.

[0017] The above technical solutions are only for the description of the embodiments of the present invention, and are not for the limitation of the present invention. Any equivalent changes made by those skilled in the art based on the creation of the present invention shall fall within the protection scope of the present invention.

Claims

1. A hose joint buckling and positioning member, arranged on a tube core and a sleeve, wherein the tube core passes through the interior of the sleeve, and the tube core includes a first end portion, characterized in that: The hose joint buckle positioning piece includes a positioning portion, the first end portion is accommodated in the positioning portion and the outer circumferential surface of the first end portion abuts against the radial inner surface of the positioning portion, the positioning portion is accommodated in the sleeve and the radial outer surface of the positioning portion abuts against the radial inner surface of the sleeve.

2. The hose joint buckling and positioning member according to claim 1, characterized in that: The tube core is provided with an annular groove on its outer circumferential surface in a direction away from the first end.

3. The hose joint buckling and positioning member according to claim 2, characterized in that: The sleeve includes a pressing portion opposite to the annular groove and a second end portion corresponding to the first end portion.

4. The hose joint buckling and positioning member according to claim 3, characterized in that: The positioning portion is received in the second end portion and a radial outer surface of the positioning portion abuts against a radial inner surface of the second end portion.

5. The hose joint buckling and positioning member according to claim 4, characterized in that: The buckling portion is buckled in the annular groove.

6. The hose joint buckling and positioning member according to claim 5, characterized in that: The hose joint buckling and positioning piece also includes a holding portion arranged on the positioning portion.

7. The hose joint buckling and positioning member according to claim 6, characterized in that: The holding portion is fixed on the positioning portion.

8. The hose joint buckling and positioning member according to any one of claims 1 to 7, characterized in that: The positioning portion is at least three support rods that are arranged in a disconnected manner in the circumferential direction.

9. A method for pressing and positioning a hose joint using the hose joint pressing and positioning member according to any one of claims 2 to 8, for pressing a sleeve onto the tube core, comprising the following steps: Step 1: First, pass the tube core through the interior of the sleeve, and align the buckling portion of the sleeve with the annular groove, with a gap between the buckling portion and the annular groove; Step 2: Then, the first end of the tube core is accommodated in the positioning portion, and the outer circumferential surface of the tube core is pressed against the radial inner surface of the positioning portion, the positioning portion is accommodated in the second end portion, and the radial outer surface of the positioning portion is pressed against the radial inner surface of the sleeve, at which time the tube core and the sleeve are on the same central axis; Step 3: Then press the pressing part of the sleeve into the annular groove of the tube core, and then remove the positioning part; Step 4: End.

Images