一种波纹管结构

Abstract

本申请涉及一种波纹管结构，包括波纹管主体，波纹管主体的端部设置有连接套，连接套包括内套筒和外套筒，内套筒与波纹管主体相连接且内套筒上设置有螺纹，外套筒套设在内套筒的外侧且外套筒和内套筒相卡接，外套筒与内套筒的卡接处设置有弹簧，外套筒与内套筒互相靠近的一侧设置有互相配合啮合的齿面，外套筒的侧面设置有多个板状凸部，板状凸部为成对设置且板状凸部上设置有固定孔，固定孔的侧面倾斜设置有凹槽或缺口。本申请通过在波纹管主体端部设置内套筒和外套筒能够通过外套筒带动内套筒转动实现连接，方便安装，通过设置成对的多个板状凸部，同时板状凸部上设置有固定孔，能够在没有扳手工具的情况进行安装，方便使用。

Claims

1. A bellows structure, characterized by: The device includes a corrugated pipe body (1), and a connecting sleeve is provided at the end of the corrugated pipe body (1). The connecting sleeve includes an inner sleeve (2) and an outer sleeve (3). The inner sleeve (2) is connected to the corrugated pipe body (1) and is provided with threads. The outer sleeve (3) is sleeved on the outside of the inner sleeve (2) and the outer sleeve (3) and the inner sleeve (2) are engaged. A spring (4) is provided at the engagement point between the outer sleeve (3) and the inner sleeve (2). A toothed surface (5) is provided on the side of the outer sleeve (3) and the inner sleeve (2) that is close to each other. A plurality of plate-shaped protrusions (301) are provided on the side of the outer sleeve (3). The plate-shaped protrusions (301) are arranged in pairs and are provided with fixing holes (301a). The side of the fixing holes (301a) is inclined and has grooves or notches.

2. A bellows structure according to claim 1, characterised in that: The inner sleeve (2) has an annular groove (201) on its outer side. One end of the outer sleeve (3) has an annular part (302) that matches the annular groove (201). The height of the annular part (302) is less than the height of the annular groove (201). The spring (4) is installed in the annular groove (201). The spring (4) is a compression spring and the spring (4) presses the outer sleeve (3) and the inner sleeve (2) together.

3. A bellows structure according to claim 1, wherein: The inner sleeve (2) is a straight cylinder structure and the size of the inner sleeve (2) is larger than the size of the corrugated pipe body (1). The outer sleeve (3) is a variable diameter sleeve. One end of the outer sleeve (3) is sleeved on the outside of the inner sleeve (2), and the other end of the outer sleeve (3) is sleeved on the outside of the corrugated pipe body (1). The toothed surface (5) is provided on the side of the outer sleeve (3) near the inner sleeve (2). The toothed surface (5) is an annular toothed structure.

4. A bellows structure according to claim 1, wherein: The end of the inner sleeve (2) is provided with a hexagonal nut-shaped protrusion.

5. A bellows structure according to claim 1, wherein: The corrugated pipe body (1) includes an inner pipe (101) and an outer pipe (102). The end of the inner pipe (101) is provided with a plastic joint (101a). A retaining ring (101b) is provided on the outside of the plastic joint (101a). The two sides of the retaining ring (101b) are connected to the inner pipe (101) and the outer pipe (102) respectively. The outer pipe (102) is a spiral corrugated pipe. A spiral protrusion corresponding to the thread of the outer pipe (102) is provided on the outside of the retaining ring (101b).

6. A bellows structure according to claim 5, wherein: The inner sleeve (2) is connected to the inner tube (101), and the outer sleeve (3) is sleeved on the outside of the outer tube (102). The outer sleeve (3) has a protrusion (303) at one end near the outer tube (102), and the inner diameter of the protrusion (303) is equal to the outer diameter of the outer tube (102). The plate-shaped protrusions (301) are evenly arranged on the outer circumference of the protrusion (303). There are multiple pairs of plate-shaped protrusions (301) and multiple pairs of plate-shaped protrusions (301) are evenly arranged on the side of the protrusion (303).

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