CN213809429U - Novel spiral corrugated pipe joint - Google Patents

Abstract

The utility model discloses a novel spiral corrugated pipe joint, a first internal thread is arranged on the inner side of the upper end of a first joint body, a first outer thread is arranged on the outer side of the lower end of the first joint body, a first hole expanding wall is welded on the lower side of the first joint body, the first joint body is connected with a second body through the first outer thread, a second inner thread is arranged in the middle of the upper end of the second body, the first outer thread is connected with the second inner thread in a threaded manner, a second fixed wall is welded at the lower end of the second body in a turning manner, the lower end of the second fixed wall is fixedly connected with a spiral corrugated pipe protective layer, a second limit wall is welded in a hole of the second fixed wall, a second inner opening is symmetrically formed in the central axis of the second limiting wall, a second limiting head is fixedly connected to the lower end of the second limiting wall, and the helical corrugated pipe is clamped through the second limiting head.

Description

Novel spiral corrugated pipe joint

Technical Field

The utility model belongs to the technical field of the bellows joint, specifically speaking relates to a novel spiral bellows joint.

Background

In daily life, a plastic helical corrugated pipe is often needed, which is hidden in dark and humid environments, such as domestic sewer pipes and instruments, and is widely applied, and the plastic helical corrugated pipe is mainly used as a measuring element of a pressure measuring instrument to convert pressure into displacement or force. The corrugated pipe has thin pipe wall and high sensitivity, and the measurement range is from tens of Pa to tens of MPa. Its open end is fixed, its sealed end is in free state, and its elasticity is increased by using auxiliary helical spring or reed. When working, the pipe is extended along the length direction under the action of internal pressure, so that the movable end generates displacement in a certain relation with the pressure. The movable end drives the pointer to directly indicate the pressure. Bellows are often combined with displacement sensors to form pressure sensors that output an electrical quantity, sometimes also acting as isolation elements. Since the expansion of the bellows requires a large volume change, its response speed is lower than that of the bourdon tube, which is suitable for measuring low pressures.

However, when the helical bellows is connected with other objects, the phenomena of water leakage, light transmission and the like often occur due to poor sealing, and the requirements of the existing helical bellows joint such as high installation technology, helical bellows replacement and the like in engineering cannot be met.

In view of this, the present invention is provided.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in overcoming the not enough of prior art, provides a novel spiral corrugated pipe joint, for solving above-mentioned technical problem, the utility model discloses a technical scheme's basic design is: including the first joint body, first internal thread has been seted up to the upper end inboard of first joint body, first outer screw thread has been seted up in the lower extreme outside of first joint body, the bottom side welding of first joint body has first hole expanding wall, the first joint body passes through first outer screw thread connection has the second body, the second internal thread has been seted up at the upper end middle part of second body, the lower extreme welding of second body has the fixed wall of second, the fixed even helical bellows protective layer of lower extreme of the fixed wall of second, the downthehole welding of the fixed wall of second has the spacing wall of second, the second internal opening has been seted up to the center pin symmetry of the spacing wall of second, the lower extreme fixedly connected with second spacing head of the spacing wall of second, the spacing wall of second passes through the lateral wall joint of second spacing head helical bellows.

In a preferred embodiment, the second inner openings are symmetrically formed in the lower end central axis of the second limiting wall, and the number of the second inner openings is four.

In a preferred embodiment, the first joint body is movably mounted inside the upper end of the second body through the second internal thread, and the second internal thread is connected to the outer side of the first external thread.

In a preferred embodiment, an outer wall of the first hole expanding wall is inserted into an inner wall of the second limiting wall, and the second fixing wall and the second limiting wall are welded to the lower end of the second body.

In a preferred embodiment, the outer wall of the second limiting head is clamped with the helical bellows, and the outer wall of the helical bellows is abutted against the inner wall of the second fixing wall.

In a preferred embodiment, a second button is movably mounted at the upper end of the second fixed wall, and the second button is fixedly mounted on the outer side wall of the second limiting wall.

After the technical scheme is adopted, compared with the prior art, the utility model following beneficial effect has.

The utility model discloses a first joint body threaded connection second body, the inside of second body is run through to the first reaming wall in the bottom of its first joint body, first reaming wall lateral wall is inconsistent with the spacing wall inside wall of second, the lateral wall of the fixed wall of second is fixed in on the top of the spacing wall of second, the bottom leanin of the spacing wall of second, make things convenient for helical bellows's one end to get into the bottom of the spacing wall of second, when the position of first joint body is close to the second body more, the depth of fall of first reaming wall is lower more, force the outside removal of the spacing wall of second, and then drive the spacing head of second and firmly fix helical bellows's inner wall, the reinforcement joint is fixed to the bellows.

The utility model discloses a lateral wall at the fixed wall of second sets up the mounting hole, and the bottom of second button is fixed in the lateral wall of the spacing wall of second, and the second button runs through the mounting hole of the fixed wall of second, when making the distance increase of first joint body and second body, weakens the fixed strength to helical bellows, presses down the second button simultaneously, and the second button drives the spacing wall of second and inwards removes, forces helical bellows to produce the clearance in the spacing wall of second, conveniently changes helical bellows.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic view of the connection structure of the present invention;

fig. 2 is the schematic view of the clamping structure of the helical bellows of the present invention.

In the figure: 1-a first joint body; 2-a first outer thread; 3-a first reamed bore wall; 4-a second internal thread; 5-a second button; 6-a second fixed wall; 7-a helical bellows; 8-a first internal thread; 9-a second body; 10-a second inner opening; 11-a second stop wall; 12-a second spacing head; 13-helical bellows protective layer.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

As shown in fig. 1 to 2, a novel spiral corrugated pipe joint, a first internal thread 8 has been seted up to the upper end inboard of first joint body 1, first outer screw thread 2 has been seted up to the lower extreme outside of first joint body 1, the bottom side welding of first joint body 1 has first reaming wall 3, first joint body 1 has second body 9 through first outer screw thread 2 threaded connection, second internal thread 4 has been seted up at the upper end middle part of second body 9, inside the through second internal thread 4 movable mounting of upper end of second body 9 has first joint body 1, and the outside threaded connection of first outer screw thread 2 has second internal thread 4. The lower end of the second body 9 is welded with a second fixed wall 6, the lower end of the second fixed wall 6 is fixedly connected with a spiral corrugated pipe protective layer 13, a hole of the second fixed wall 6 is welded with a second limit wall 11, the second body 9 is connected with the first joint body 1 through screw threads, the bottom of the first joint body 1 is provided with a first hole expanding wall 3 penetrating through the inside of a second body 9, the outer side wall of the first hole expanding wall 3 is abutted against the inner side wall of a second limiting wall 11, the top end of the second limiting wall 11 is fixed on the side wall of a second fixed wall 6, the bottom of the second limiting wall 11 is inclined inwards, so that one end of a helical corrugated pipe 7 can conveniently enter the bottom of the second limiting wall 11, when the position of the first joint body 1 is closer to the second body 9, the lower the descending depth of the first hole expanding wall 3 is, the second limiting wall 11 is forced to move outwards, and the second limiting head 12 is driven to firmly fix the inner wall of the helical bellows 7. The corrugated pipe is fixed by the reinforced joint, second inner openings 10 are symmetrically formed in the central axis of the lower end of the second limiting wall 11, and the number of the second inner openings 10 is four. Opening 10 in the second has been seted up to the center pin symmetry of second spacing wall 11, the lower extreme fixedly connected with second spacing head 12 of second spacing wall 11, second spacing wall 11 passes through lateral wall joint helical bellows 7 of second spacing head 12, set up the mounting hole through the lateral wall at second fixed wall 6, the bottom of second button 5 is fixed in the lateral wall of second spacing wall 11, second button 5 runs through the mounting hole of second fixed wall 6, when making the distance increase of first joint body 1 and second body 9, weaken the fixed strength to helical bellows 7, press second button 5 simultaneously, second button 5 drives second spacing wall 11 and inwards moves, force helical bellows 7 to produce the clearance in second spacing wall 11, conveniently change helical bellows 7.

The working principle is as follows: first outer screw thread 2 has been seted up to the lower extreme of first joint body 1, and first joint body 1 is through first outer screw thread 2 fixed connection second body 9, and second body 9 has seted up second internal thread 4 in the junction of first joint body 1, and first outer screw thread 2 threaded connection second internal thread 4. The welding of the lower extreme of second body 9 has second fixed wall 6, the spacing wall 11 of inner wall top surface fixedly connected with second of second fixed wall 6, the bottom fixedly connected with second spacing head 12 of second spacing wall 11, the spacing wall 7 of lateral wall joint spiral bellows of second spacing head 12 is passed through to second spacing wall 11, when the position of first joint body 1 is close to second body 9 more, the depth of fall of first hole expanding wall 3 is lower, force the outside removal of the spacing wall 11 of second, and then drive the inner wall of second spacing head 12 firmly fixed spiral bellows 7, the reinforcement joint is fixed to the bellows.

This kind of novel helical bellows connects, the lateral wall fixedly connected with second button 5 of the spacing wall 11 of second, the mounting hole has been seted up to the lateral wall of the fixed wall 6 of second, and second button 5 runs through the mounting hole, and 5 lateral walls slidable mounting of second button have the fixed wall 6 of second, through pressing down second button 5, make the spacing wall 11 of second inwards move, force helical bellows 7 and the spacing wall 11 of second to produce the clearance, and helical bellows connects the convenient helical bellows 7 of changing.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.

Claims (6)

1. A novel spiral corrugated pipe joint comprises a first joint body (1), and is characterized in that: a first internal thread (8) is arranged on the inner side of the upper end of a first joint body (1), a first external thread (2) is arranged on the outer side of the lower end of the first joint body (1), a first hole expanding wall (3) is welded on the side face of the bottom of the first joint body (1), the first joint body (1) is in threaded connection with a second body (9) through the first external thread (2), a second internal thread (4) is arranged in the middle of the upper end of the second body (9), a second fixing wall (6) is welded on the lower end of the second body (9), a protective layer of a spiral corrugated pipe (7) is fixedly connected with the lower end of the second fixing wall (6), a second limiting wall (11) is welded in the hole of the second fixing wall (6), a second internal opening (10) is symmetrically formed in the central axis of the second limiting wall (11), and a second limiting head (12) is fixedly connected with the lower end of the second limiting wall (11), the second limiting wall (11) is clamped with the spiral corrugated pipe (7) through the outer side wall of the second limiting head (12).

2. The novel spiral corrugated pipe joint as set forth in claim 1, wherein: the second inner openings (10) are symmetrically formed in the central axis of the lower end of the second limiting wall (11), and the number of the second inner openings (10) is four.

3. The novel spiral corrugated pipe joint as set forth in claim 1, wherein: the inner portion of the upper end of the second body (9) is provided with the first joint body (1) through the second internal thread (4) in a movable mode, and the outer side of the first external thread (2) is in threaded connection with the second internal thread (4).

4. The novel spiral corrugated pipe joint as set forth in claim 1, wherein: the outer wall of the first hole expanding wall (3) is connected to the inner wall of the second limiting wall (11) in an inserting mode, and the second fixing wall (6) and the second limiting wall (11) are welded to the lower end of the second body (9).

5. The novel spiral corrugated pipe joint as set forth in claim 1, wherein: the outer wall joint of second spacing head (12) helical bellows (7), just the outer wall of helical bellows (7) with the inner wall of second fixed wall (6) is inconsistent.

6. The novel spiral corrugated pipe joint as set forth in claim 1, wherein: a second button (5) is movably mounted at the upper end of the second fixing wall (6), and the second button (5) is fixedly mounted on the outer side wall of the second limiting wall (11).

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