Backflow pipe with drainage rubber column

Abstract

The utility model discloses a return pipe with drainage rubber columns, which comprises a return pipe body and two drainage rubber columns, the diameter of one end of the return pipe body is gradually reduced, the cross section of the return pipe body in the direction from one end to the other end is a chamfered square, and the number of the drainage rubber columns is two. And the two drainage rubber columns are symmetrically arranged on the outer surface of the return pipe body. The drainage rubber column and the return pipe body are integrally formed through the positions of the rubber inlet point and the drainage rubber column, and the drainage rubber column can move together with the return pipe body during demolding, so that the pouring gate is automatically separated from the drainage rubber column and freely falls off, the pouring gate does not need to be sheared, the return pipe body can be clamped by utilizing the position of the drainage rubber column, and the labor intensity of workers is reduced. And meanwhile, the drainage rubber column is arranged at the fixed buckle position of the return pipe body, so that the return pipe body for internal formation work is convenient to fix.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding production, and particularly relates to a return pipe with a drainage rubber column. Background Art

[0002] The return pipe is used in the internal formation process of lead-acid batteries. Since a large amount of electrolyte is required during the internal formation process of the battery and the volume of the battery case is limited, installing the return pipe in the valve seat hole can supplement the electrolyte required during the formation process.

[0003] When the return pipe is produced by injection molding, the side gate feeding method is adopted for production. However, the gate of the produced return pipe is not easily separated from the product automatically, and manual gate cutting is required, which increases the production cost. Summary of the Utility Model

[0004] In view of the problem that the gate of the return pipe in the prior art is not easily separated from the product automatically and manual gate cutting is required, the utility model proposes the following technical solutions:

[0005] A return pipe with a drainage rubber column, comprising: a return pipe body and a drainage rubber column, characterized in that one end of the return pipe body has a gradually decreasing diameter, and the cross section of the return pipe body is a chamfered square from one end to the other end. The number of the drainage rubber columns is two, and the two drainage rubber columns are symmetrically arranged on the outer surface of the return pipe body.

[0006] Preferably, the drainage rubber column is arranged in a flat shape, and the thickness of the drainage rubber column is 0.5 - 0.8 times the thickness of the return pipe body.

[0007] Preferably, the drainage rubber column is composed of a plurality of flush columnar independent individuals, and the overall thickness of the drainage rubber column is 0.5 - 0.8 times the thickness of the return pipe body.

[0008] The beneficial effects of the utility model are as follows:

[0009] 1. The drainage rubber column and the return pipe body are integrally formed through the gate point and the position of the drainage rubber column. The drainage rubber column can move together with the return pipe body during demolding, so that the gate is automatically separated from the drainage rubber column and freely falls off, without the need for gate cutting work.

[0010] 2. The return pipe body can be clamped by using the position of the drainage rubber column, which is convenient for demolding the return pipe body. At the same time, the drainage rubber column is arranged at the fixed buckle position of the return pipe body, which is convenient for fixing the return pipe body during the internal formation work. Description of the Drawings

[0011] Figure 1 The figure shows the overall structural schematic diagram of the embodiment;

[0012] Figure 2 The front view cross-sectional view of the embodiment is shown.

[0013] In the figure: 10, the body of the return pipe; 20, the drainage rubber column. Specific embodiments

[0014] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings of the description.

[0015] Embodiment

[0016] Figure 1 - Figure 2 In the embodiment, the return pipe with the drainage rubber column 20 includes: the body 10 of the return pipe and the drainage rubber column 20. One end of the body 10 of the return pipe gradually decreases in diameter, and the cross-section of the body 10 of the return pipe is a chamfered square in the direction from one end to the other end. The number of the drainage rubber columns 20 is two, and the two drainage rubber columns 20 are symmetrically arranged on the outer surface of the body 10 of the return pipe.

[0017] Because one end of the body 10 of the return pipe gradually decreases in diameter, and the cross-section of the body 10 of the return pipe is a chamfered square in the direction from one end to the other end, the volume of the body 10 of the return pipe can be increased, the length of the body 10 of the return pipe can be reduced, so that the body 10 of the return pipe can be injection-molded through the positions of the two drainage rubber columns 20, thereby greatly improving the filling uniformity and appearance quality of the body 10 of the return pipe.

[0018] The drainage rubber column 20 and the body 10 of the return pipe are integrally formed through the gate point and the position of the drainage rubber column 20. The drainage rubber column 20 can move together with the body 10 of the return pipe during demolding, so that the gate is automatically separated from the drainage rubber column 20 and freely falls off, without the need for shearing work on the gate, and the body 10 of the return pipe can be clamped by using the position of the drainage rubber column 20, which is convenient for demolding the body 10 of the return pipe. At the same time, the drainage rubber column 20 is arranged at the fixed buckle position of the body 10 of the return pipe, which is convenient for fixing the body 10 of the return pipe during the internal curing work.

[0019] Figure 1 - Figure 2 In the embodiment, the drainage rubber column 20 is arranged in a flat shape, and the thickness of the drainage rubber column 20 is 0.5-0.8 times the thickness of the body 10 of the return pipe.

[0020] The thickness of the drainage rubber column 20 is 0.5-0.8 times the thickness of the body 10 of the return pipe. The molten plastic realizes the fine gate point feeding through the drainage rubber injection device, without manual intervention, improving the production efficiency, not causing shrinkage due to being too large, nor causing product defects such as jet flow marks due to being too small. The flat-shaped drainage rubber column 20 can increase the passing path of the molten plastic and accelerate the injection of the molten plastic.

[0021] Figure 1 - Figure 2 Among them, the drainage glue column 20 is composed of multiple flush columnar independent individuals, and the overall thickness of the drainage glue column 20 is 0.5-0.8 times the thickness of the reflux pipe body 10.

[0022] The overall thickness of the drainage glue column 20 is 0.5-0.8 times the thickness of the reflux pipe body 10. The molten plastic realizes the fine gate point feeding through the drainage glue injection device, without manual intervention, improving the production efficiency. It will not cause shrinkage due to being too large, nor will it cause product defects such as jet flow marks due to being too small. The drainage glue column 20 composed of columnar independent individuals enables the molten plastic to be fed at multiple points, making the filling uniformity of the reflux pipe body 10 better.

[0023] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. A reflux pipe with a drainage rubber column (20), comprising: A return pipe body (10) and a drainage rubber column (20), characterized in that one end of the return pipe body (10) has a gradually decreasing diameter, and the cross-section of the return pipe body (10) is a chamfered square in the direction from one end to the other end, the number of the drainage rubber columns (20) is two, and the two drainage rubber columns (20) are symmetrically arranged on the outer surface of the return pipe body (10).

2. The reflux pipe with a drainage rubber column (20) according to claim 1, wherein The drainage rubber column (20) is arranged in a flat shape, and the thickness of the drainage rubber column (20) is 0.5-0.8 times the thickness of the return pipe body (10).

3. The return pipe with a drainage rubber column (20) according to claim 1, characterized in that, The drainage rubber column (20) is composed of a plurality of flush columnar independent individuals, and the overall thickness of the drainage rubber column (20) is 0.5-0.8 times the thickness of the return pipe body (10).

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