Catheter joint for connecting catheter on side wall of catheter

Abstract

The utility model belongs to the technical field of pipes, and particularly relates to a conduit joint for connecting a conduit on the side wall of the conduit, which comprises a conduit main body, the lower end of the conduit main body necks to form a necking limiting part, and the upper end of the conduit main body is provided with an outer flange. Annular spaced wire drawing grooves formed by a metal wire drawing process are formed in the lower bottom face of the outer flange of the guide pipe body, and the wire drawing grooves and the lower bottom face of the outer flange form limiting welding parts which are welded to the side wall of the guide pipe and used for limiting the side wall of the guide pipe. The guide pipe welding device has the advantages that after guide pipes with different thicknesses are welded, the extension lengths and the exposure lengths of the guide pipes are consistent, the welding is uniform and firm, the sealing performance is good, welding flux cannot enter the thick guide pipe, the situation that the pipeline is unsmooth in circulation or the pipeline is blocked is avoided, and standardized production can be realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipes, and particularly relates to a pipe joint for connecting pipes on the side wall of a conduit. Background Art

[0002] Currently, when welding a thin pipe on the cylindrical side wall of a thick pipe, generally a hole is drilled perpendicular to the axis of the thick pipe, the thin pipe is inserted into the hole, and a welding device is used for welding. Its disadvantages are as follows: First, the lengths of the thin pipes inserted into the holes are different, which is not suitable for standardized production; second, the welding is not ideal, and there are situations of uneven welding and insecure welding; third, when welding, some solder leaks into the thick pipe, resulting in poor pipeline flow or pipeline blockage. Summary of the Invention

[0003] The purpose of the utility model is to provide a pipe joint for connecting pipes on the side wall of a conduit, in which solder will not leak into the thick pipe, the welding is uniform and firm, and standardized welding can be achieved.

[0004] The purpose of the utility model is solved as follows:

[0005] A pipe joint for connecting pipes on the side wall of a conduit includes a pipe main body. The lower end of the pipe main body is necked down to form a necking limit part. The upper end of the pipe main body is provided with an outward flange. The lower bottom surface of the outward flange of the pipe main body is provided with annularly spaced wire drawing grooves formed by a metal wire drawing process. The wire drawing grooves and the lower bottom surface of the outward flange form a limit welding part for welding and limiting with the side wall of the conduit.

[0006] As a further optimization of the above technical solution, the width of the wire drawing groove gradually becomes smaller from the inside to the outside.

[0007] As a further optimization of the above technical solution, the depth of the wire drawing groove gradually becomes smaller from the inside to the outside.

[0008] As a further optimization of the above technical solution, the included angle between the extension line of the necking limit part and the horizontal line is 0 - 88 degrees.

[0009] As a further optimization of the above technical solution, the bottom of the outward flange bulges upward to form an arc-shaped outward flange, and the annular groove on the lower bottom of the arc-shaped outward flange forms an annular space for containing solder.

[0010] As a further optimization of the above technical solution, the outward flange has a shape matching the cylindrical surface of the outer wall of the round hole opened on the side wall of the conduit, so that the upper surface of the outward flange has height changes, and the axis of the round hole has an included angle of 30 - 150 degrees with the axis of the conduit.

[0011] As a further optimization of the above technical solution, on the inner wall of the catheter body, there are annularly spaced wire drawing grooves formed by wire drawing process upward from the necking limiting part.

[0012] As a further optimization of the above technical solution, the width and depth of the wire drawing grooves gradually decrease from bottom to top.

[0013] As a further optimization of the above technical solution, the catheter joint is made of a metal material, and the metal material is stainless steel material or copper material or copper alloy material or aluminum alloy material.

[0014] As a further optimization of the above technical solution, the outer contour of the flanging is circular or oval or rectangular. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic cross-sectional view of the present utility model.

[0016] Figure 2 is a horizontal cross-sectional view of the present utility model in the use state.

[0017] Figure 3 is a longitudinal cross-sectional view of the present utility model in the use state.

[0018] Figure 4 is Figure 3 an enlarged view of part A of

[0019] Figure 5 is one of the schematic cross-sectional views of installing a thin catheter through the present utility model with an inclined opening on the side wall of the thick catheter.

[0020] Figure 6 is a schematic view of the present utility model with the outer contour of the flanging being rectangular.

[0021] Figure 7 is a schematic view of the present utility model with the outer contour of the flanging being oval. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following further describes the present utility model with specific embodiments in conjunction with the drawings. Refer to Figures 1 - 7 :

[0023] A catheter joint 10 for connecting a catheter on the side wall of a catheter includes a catheter body 11. The lower end of the catheter body 11 is necked to form a necking limiting part 12. The upper end of the catheter body 11 is provided with a flanging 14. On the lower bottom surface of the flanging 14 of the catheter body 11, there are annularly spaced wire drawing grooves 18 formed by wire drawing process. The wire drawing grooves 18 and the lower bottom surface of the flanging 14 form a limiting welding part for welding and limiting with the catheter side wall 21.

[0024] As a further optimization of the above technical solution, the width of the wire drawing groove 18 gradually decreases from the inside to the outside.

[0025] As a further optimization of the above technical solution, the depth of the wire drawing groove 18 gradually decreases from the inside to the outside.

[0026] As a further optimization of the above technical solution, the included angle A between the extension line X1 of the necking limiting part 12 and the horizontal line X2 is 0 - 88 degrees. When the included angle A is 90 degrees, the necking limiting part 12 is a right-angle inner flanging.

[0027] As a further optimization of the above technical solution, the bottom of the outer flanging 14 bulges upward to form an arc-shaped outer flanging, and the annular groove 13 on the lower bottom of the arc-shaped outer flanging forms an annular space for containing solder.

[0028] As a further optimization of the above technical solution, the outer flanging 14 has a shape matching the cylindrical surface of the outer wall of the round hole opened on the side wall 21 of the conduit, and the upper surface of the outer flanging 14 has height variations. Figure 1 The highest point 15 and the lowest point 17 of the height variations are shown, and the axis of the round hole has an included angle of 30 - 150 degrees with the axis of the conduit.

[0029] As a further optimization of the above technical solution, annularly spaced wire drawing grooves 16 formed by a metal wire drawing process are provided upward from the necking limiting part on the inner wall of the conduit body 11.

[0030] As a further optimization of the above technical solution, the width and depth of the wire drawing groove 16 gradually decrease from bottom to top.

[0031] As a further optimization of the above technical solution, the conduit joint 10 is made of a metal material, and the metal material is stainless steel material or copper material or copper alloy material or aluminum alloy material.

[0032] As a further optimization of the above technical solution, the outer contour of the outer flanging 14 is circular or oval 102 or rectangular 101 or other geometric shapes.

[0033] Figures 2 - 4The schematic diagram of the use state of the utility model is given. One or more round holes 22 penetrating through one side wall are arranged on the cylindrical side wall of the thick conduit 20 perpendicular to the axis of the thick conduit 20. The included angle between the axis of the round hole 22 and the axis of the thick conduit 20 is 30 - 150 degrees, that is, the round hole 22 can be perpendicular to the axis of the thick conduit 20, or can have an included angle less than 90 degrees with both sides. The one or more round holes 22 can be arranged axially on the thick conduit 20, or can be arranged circumferentially and / or axially on the thick conduit 20. The conduit joint 10 is inserted into the round hole 22. The outer wall of the conduit joint 10 matches the inner wall of the round hole 22. A thin conduit 30 is inserted into the central hole of each conduit joint 10. The outer wall of the thin conduit 30 matches the inner wall of the conduit joint 10. The lower end of the thin conduit 30 is inserted into the necking limit part 12 of the conduit joint 10. Due to the reduction of the inner diameter, the downward extending length of the thin conduit 30 is restricted. The upward flanging 14 of the conduit joint 10 restricts the extending length of the conduit joint 10 into the round hole 22 of the thick conduit 20. In this way, the extending lengths of the thin conduit 30 and the conduit joint 10 can meet the design requirements. Solder is applied to the wire drawing grooves 18, 16 and the annular groove 13, and the lower end part of the thin conduit 30, and they are welded by high-temperature welding or other welding equipment, so that the thick conduit 20, the conduit joint 10 and the thin conduit 30 can be welded into one body. Of course, the thin conduit 30 can also be welded to the conduit joint 10 first, and then the conduit joint 10 welded with the thin conduit 30 is welded to the thick conduit 20, which is applicable to the welded connection of various conduit shunts.

[0034] As can be seen from the above, the prominent advantages of the utility model compared with the prior art are:

[0035] 1. Since the upward flanging 14 of the conduit joint 10 of the utility model restricts the extending length of the conduit joint 10 into the round hole 22 of the thick conduit 20, and the necking limit part 12 of the conduit joint 10 restricts the downward extending length of the thin conduit 30, the lengths of the pipes to be welded can be intercepted consistently, and the exposed lengths after welding are consistent, so standardized production can be realized.

[0036] 2. Solder is evenly applied to the wire drawing grooves 18, 16 and the annular groove 13 of the conduit joint 10 of the utility model and welded by high-temperature welding or other welding equipment. The welding is uniform, firm and has good sealing performance.

[0037] 3. Solder is evenly applied to the wire drawing grooves 18, 16 of the conduit joint 10 of the utility model and welded by high-temperature welding or other welding equipment. Due to the siphon effect of the wire drawing grooves 18, 16, the molten solder is adsorbed near the wire drawing grooves 18, 16 during welding. Not only the welding area and welding volume are large, but also the solder will not enter the thick conduit 20, avoiding the situation of unsmooth pipeline flow or blocked pipeline.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still make simple substitutions or modifications of similar technologies to the technical solutions or technical features recorded in the foregoing embodiments, and these simple substitutions or modifications do not make the essence of the corresponding technical solutions deviate from the spirit and essence of the technical solutions of the embodiments of the present invention, and are still within the protection scope of the present invention.

Claims

1. A catheter connector for connecting catheters on the side wall of a catheter, characterized in that: It includes a catheter body. The lower end of the catheter body is necked down to form a necking limiting part. The upper end of the catheter body is provided with an outward-turned edge. On the lower bottom surface of the outward-turned edge of the catheter body, there are annularly and spaced-apart wire-drawing grooves formed by a metal wire-drawing process. The wire-drawing grooves and the lower bottom surface of the outward-turned edge form a limiting and welding part for welding and limiting with the catheter side wall.

2. The catheter connector for connecting a catheter to the side wall of a catheter according to claim 1, wherein: The width of the wire-drawing groove gradually becomes smaller from the inside to the outside.

3. The catheter adapter for connecting catheters on the side wall of a catheter according to claim 2, wherein: The depth of the wire-drawing groove gradually becomes smaller from the inside to the outside.

4. The catheter connector for connecting catheters on the side wall of a catheter according to claim 2, characterized in that: The included angle between the extension line of the necking limiting part and the horizontal line is 0 - 88 degrees.

5. A catheter connector for connecting a catheter to the side wall of a catheter according to claim 1, characterized in that: The bottom of the outward-turned edge bulges upward to form an arc-shaped outward-turned edge, and the annular groove on the lower bottom of the arc-shaped outward-turned edge forms an annular space for containing solder.

6. A catheter connector for connecting a catheter to the side wall of a catheter according to claim 1, characterized in that: The outward-turned edge has a shape matching the cylindrical surface of the outer wall of the round hole opened on the catheter side wall, and there are height variations on the upper surface of the outward-turned edge. The axis of the round hole has an included angle of 30 - 150 degrees with the axis of the catheter.

7. A catheter connector for connecting a catheter to the side wall of a catheter according to claim 1, characterized in that: On the inner wall of the catheter body, there are annularly and spaced-apart wire-drawing grooves formed by a metal wire-drawing process upward from the necking limiting part.

8. A catheter connector for connecting a catheter to the side wall of a catheter according to claim 7, characterized in that: The width and depth of the wire-drawing groove gradually become smaller from the bottom to the top.

9. A catheter connector for connecting a catheter to the side wall of a catheter according to any one of claims 1-8, characterized in that: The catheter joint is made of a metal material.

10. A catheter connector for connecting a catheter to the side wall of a catheter according to claim 7, characterized in that: The outer contour of the outward-turned edge is circular or oval or rectangular.

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