CN211039345U

CN211039345U - Movable nut and pipeline interface structure applying same

Info

Publication number: CN211039345U
Application number: CN201921675915.7U
Authority: CN
Inventors: 杨颂文; 罗超
Original assignee: Guangdong Vanbo Electric Co ltd
Current assignee: Guangdong Vanward New Electric Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-07-17
Anticipated expiration: 2029-09-30

Abstract

The utility model discloses a movable nut and use its pipeline interface structure, including the nut body that has the nut terminal surface, be equipped with the pipeline clearing hole that its was worn in the hole on the nut terminal surface, the internal flange hole that meets with the pipeline clearing hole that still is equipped with of nut body, and the aperture of flange hole is greater than the aperture of pipeline clearing hole, and the hole of pipeline clearing hole is equipped with the breach of stepping down on following, and the degree of depth is from the direct flange hole of nut terminal surface. The utility model also provides a pipeline interface structure, which comprises a movable nut and a pipeline with a pipe orifice flange, wherein the outer diameter of the pipe orifice flange is larger than the aperture of the pipeline through hole and smaller than the aperture of the flange inner hole; the space size of the abdication gap after being connected with the pipeline through hole is larger than the outer diameter of the pipe orifice flange. The pipe orifice flange penetrates through the pipeline through hole by utilizing the space provided by the abdicating notch, so that the movable nut is sleeved in the pipeline opening, the structure can not be separated under the action of external force after the movable nut is sleeved, and the pipeline interface structure can be detached by adjusting the posture of the pipeline or the movable nut, thereby facilitating the maintenance and the replacement.

Description

Movable nut and pipeline interface structure applying same

Technical Field

The utility model relates to a pipe connection technical field, in particular to movable nut and use its pipeline interface structure.

Background

The existing interface structure for quick connection of pipelines often has the conditions of easy water leakage or difficult installation and difficult separation of parts after assembly. Taking the interface structure of the pipeline and the pipe joint as an example, a movable nut is generally sleeved into a tee joint or a straight-through joint, and then the movable nut is fixed and is connected with the threaded section of the pipeline at the other end. The first mode is to firstly sleeve the movable nut into the straight-through pipe and then weld the flange opening with the straight-through pipe, so that the nut cannot be disassembled after being sleeved in the first mode, and in addition, the welding seam is unstable and is easy to leak water. The second type is that a groove is arranged at the opening of the straight-through pipe, after the nut is sleeved in the straight-through pipe, a clamp spring is arranged at the groove, the outer diameter of the clamp spring is larger than the inner diameter of the opening of the nut, the nut is blocked in the opening of the straight-through pipe, and therefore the clamp spring is difficult to install in the mode, a special tool for installing the clamp spring is needed, and operation is difficult.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a movable nut and use its pipeline interface structure to solve one or more technical problem that exist among the prior art, provide a profitable selection or create the condition at least.

The technical scheme adopted for solving the technical problems is as follows:

first, a movable nut includes:

a nut body having a nut end face;

the pipeline through hole is formed in the end face of the nut and penetrates through the end face of the nut, and the central axis of the pipeline through hole is parallel to the central axis of the nut body;

the flange inner hole is positioned in the nut body and is coaxial with the pipeline through hole, the flange inner hole is connected with the pipeline through hole, and the aperture of the flange inner hole is larger than that of the pipeline through hole;

and the abdicating notch is arranged on the hole edge of the pipeline through hole and is connected with the pipeline through hole, and the depth of the abdicating notch is from the end face of the nut to the inner hole of the flange.

The utility model discloses a movable nut for traditional movable nut, has add the breach of stepping down at least. Under the conventional situation, the external pipeline generally has for the pipeline passes through the hole aperture will great mouth of pipe flange, so can not directly penetrate the movable nut from the pipeline through hole in, but now, owing to having the breach of stepping down for adjust the pipeline gesture, make the scheme that the mouth of pipe flange passed through less pipeline through hole promptly, got into in the nut through the nut terminal surface becomes possible, and the diapire of flange hole can block the mouth of pipe flange, prevents it and deviate from. The event the utility model discloses a movable nut has good expansibility, can be used to carry out quick butt joint with outside pipe connection, for example tee bend or straight-through joint, also can regard as ordinary nut to use, moreover movable nut also easily reforms transform on current nut, low in production cost.

Of course, as the threaded connection member, the movable nut of the present invention is naturally provided with the threaded connection hole, but because it is a general attribute of the nut, the skilled person in the art should clearly and unambiguously understand the arrangement scheme of the threaded connection hole, so the present invention will not be described in detail.

As a further improvement of the technical scheme, the surface of the abdicating notch facing to the central axis direction of the pipeline through hole is a cylindrical curved surface. The cylindrical curved surface is convenient for the boring and turning processing on the one hand, and on the other hand, the space provided by the cylindrical curved surface has the largest range, namely when the external pipe orifice flange is about to pass through the pipeline through hole, the abdicating notch can provide a larger range of adaptive positions for the pipe orifice flanges with different placing postures to pass through.

As a further improvement of the above technical solution, the cylindrical curved surface is eccentrically disposed with respect to the pipe passage hole. The eccentrically arranged cylindrical curved surface has the effect of dislocation and looseness prevention, so that after the movable nut is connected with an external pipeline and sleeved in, the pipeline is not easy to loosen from the yielding gap due to vibration and other reasons with the movable nut.

As a further improvement of the technical scheme, the central axis of the nut body is perpendicular to the end face of the nut, so that the nut is convenient to process and produce.

As a further improvement of the above technical solution, the abdicating notch includes more than two, wherein at least two abdicating notches are opposite to each other. This scheme further is convenient for machine tooling production, and the size on the activity nut terminal surface has also fully been utilized to just right setting, strives for bigger let space in limited space to allow the mouth of pipe flange of peripheral hardware pipeline to pass through, in the contrary words, has also guaranteed under the prerequisite of less cutting output, also can let the mouth of pipe flange of peripheral hardware pipeline pass through.

Secondly, the utility model provides a pipeline interface structure, it includes foretell movable nut and any kind of improvement scheme thereof, pipeline interface structure still includes:

the pipe orifice of the pipe is expanded to form a pipe orifice flange, the outer diameter of the pipe orifice flange is larger than the aperture of the pipe passing hole, and the outer diameter of the pipe orifice flange is smaller than the aperture of the flange inner hole;

the space size of stepping down the breach with after the pipeline clearing hole meets is greater than the external diameter of mouth of pipe flange, the pipeline passes behind the pipeline clearing hole, mouth of pipe flange is located in the flange hole.

The utility model has the advantages that: because adopted the utility model provides a movable nut even mouth of pipe flange size is greater than the aperture of pipeline clearing hole, nevertheless also can be through the gesture that the adjustment emboliaed, makes the mouth of pipe flange utilize the space that the breach of stepping down additionally provided, passes from the pipeline clearing hole, makes movable nut directly embolias the pipeline mouth, need not follow-up processing or uses other instrument, in addition because mouth of pipe flange external diameter is greater than the aperture of pipeline clearing hole, movable nut embolias the back, can not deviate from under the exogenic action, nevertheless under certain exogenic action, through the gesture of adjustment pipeline or movable nut, can dismantle pipeline interface structure again, conveniently maintain the change.

Drawings

The present invention will be further explained with reference to the drawings and examples;

fig. 1 is a schematic perspective view of an embodiment of a movable nut according to the present invention;

FIG. 2 is a schematic top view of the removable nut of FIG. 1;

fig. 3 is a schematic view of a pipe joint structure provided by the present invention, in an embodiment of which, corresponding parts are assembled;

fig. 4 is a schematic view of a radial cut of the pipe joint structure provided by the present invention, wherein the cut surface passes through the abdicating notch;

fig. 5 is a schematic view of the pipe joint structure provided by the present invention, which is radially cut, and the cutting surface of the pipe joint structure avoids the abdicating notch.

100. The nut body, 200, a pipeline through hole, 300, a flange inner hole, 400, an abdicating notch, 500, a pipeline, 501 and a pipe orifice flange,

the pipe is passed through the hole aperture,

the diameter of the curved surface of the cylinder,

the outer diameter of the pipe orifice flange, W, the width of the abdication gap, H and the eccentricity.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are used, the meaning is one or more, the meaning of a plurality of words is two or more, and the meaning of more than, less than, more than, etc. is understood as not including the number, and the meaning of more than, less than, more than, etc. is understood as including the number.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 5, the following description will be made by taking a movable nut and a through pipe orifice of a through joint as an example, and a plurality of embodiments of the present invention are described.

The movable nut includes a nut body 100, the nut body 100 has a central through hole, the through hole penetrates from one end face of the nut body 100 to the other end face, an inner wall of the through hole is provided with an internal thread in one direction in the axial direction, namely, the through hole is used as an internal thread hole section which the movable nut should have for connecting with other pipeline external threads, and the flange inner hole 300 and the pipeline through hole 200 are processed on the inner wall of the through hole in the opposite direction relative to the internal thread hole section. Generally, the diameter of the pipe passing hole 200 is smaller than the inner diameter of the female screw hole section, and a ring of flange is naturally formed on the end surface of the nut body 100, and the inner annular hole of the ring of flange is the pipe passing hole 200. The flange is provided with the abdicating notch 400, and the depth of the abdicating notch 400 penetrates through the axial thickness of the whole flange. In some embodiments, the yielding notch 400 is radially surrounded by three surfaces, namely a cylindrical curved surface and straight surfaces located at two sides of the cylindrical curved surface, so that the yielding notch 400 can also be regarded as a D-shaped hole, and the cylindrical curved surface is a hole wall of the D-shaped hole.

Taking a section of pipeline 500 near the orifice of the straight pipe, wherein the orifice of the pipeline is expanded to form an orifice flange 501, and the orifice of the pipeline is provided with a flangeThe outer diameter of the pipe orifice flange 501 is larger than the aperture of the pipeline passing hole 200, and the outer diameter of the pipe orifice flange 501 is smaller than the aperture of the flange inner hole 300. The diameter of the pipe passing hole 200 is

The diameter of the cylindrical curved surface of the abdicating notch 400 is

The orifice flange 501 has an outer diameter of

Is greater than

Is greater than

During assembly, originally because

Is greater than

The pipe orifice of the pipe 500 cannot directly pass through the pipe passing hole 200, but now the pipe orifice flange 501 can smoothly pass through the pipe passing hole 200 by means of the space expanded by the abdicating notch 400 by adjusting the movable nut or the posture of the pipe 500, so that the movable nut is sleeved into the pipe 500, and after the movable nut is sleeved, because the movable nut or the pipe 500 is adjusted to pass through the pipe passing hole 200

Is greater than

While the relief notch 400 is only in the pipeThe pipe flange 501 is effectively prevented from coming out of the nut by the small number of positions occupied on the end face of the passage hole 200, and of course, since the outer diameter of the pipe flange 501 is smaller than the bore diameter of the flange inner bore 300, the pipe flange 501 can be left in the nut without being locked. After the assembly, the pipeline interface structure is formed.

In some embodiments, the central axis of the nut body 100 is perpendicular to the end surface of the nut, which is advantageous for manufacturing.

In some embodiments, the two abdicating notches 400 are provided, and the two abdicating notches 400 are opposite to each other, and specifically, the two abdicating notches 400 are mirror images of each other with a plane passing through the central axis of the pipe passing hole 200 as a symmetry plane. Because the volume of activity nut is limited, the position that supplies to open the breach processing on the terminal surface of nut body 100 is also limited, sets up two mutual mirror symmetry's breach of stepping down 400, can utilize the size on the terminal surface of nut body 100 to furthest, provides more sufficient space for mouth of pipe flange 501 to pass through. Of course, if the size allows, the offset notches 400 may be provided in multiple numbers, which provides more options for assembling directions, but it is ensured that the width of the offset notches 400 is sufficient, and the entity between the offset notches 400 has sufficient strength to resist the torsion force when the nozzle flange 501 is pulled out.

In some embodiments, the offset notch 400 is disposed offset from the center of the pipe passing hole 200, for example, the distance between the central axis of the cylindrical curved surface of the offset notch 400 and the central axis of the pipe passing hole 200 is H, so that H is greater than 0. This eccentric setting does benefit to and prevents that the pipeline interface structure pine that the assembly was accomplished from taking off the disintegration, because the equipment back, pipeline 500 is coaxial on the whole with the movable nut, and the two is difficult for separating owing to there is the difference of big path in the axial, nevertheless radially if rock, just when H is 0, then make the pipeline flange reverse along the route that the equipment got into deviate from easily, so eccentric setting can effectively reduce because of rocking, the pine that the vibration caused takes off the condition and appears.

In practice, the activities may be produced by machining, such as lathing, boring, stamping, etcAnd assembling the pipeline interface structure by a nut and manually. Taking the size of the fittings of a common household water heater pipeline as an example, the following size requirements can be partially or completely selected:

h is 2-3 mm. Wherein W is the width of the relief notch 400, i.e. the distance between the flat surfaces on both sides of the cylindrical curved surface. The above dimensions are parameters that are preferred according to the size of the fitting of the common household water heater pipe, but as long as it is ensured that the pipe orifice flange 501 can smoothly pass through the pipe passage hole 200 and can effectively block the pipe from coming off, the relevant parameters can be modified according to the actual situation.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. A movable nut is characterized in that: the method comprises the following steps:

a nut body (100) having a nut end surface;

the pipeline through hole (200) is formed in the end face of the nut and penetrates through the end face of the nut, and the central axis of the pipeline through hole (200) is parallel to the central axis of the nut body (100);

a flange inner hole (300) which is located inside the nut body (100) and is coaxial with the pipe passing hole (200), the flange inner hole (300) being connected with the pipe passing hole (200), the flange inner hole (300) having a larger aperture than the pipe passing hole (200);

and the yielding notch (400) is arranged on the hole edge of the pipeline passing hole (200) and is connected with the pipeline passing hole (200), and the depth of the yielding notch (400) is from the end face of the nut to the inner hole (300) of the flange.

2. The removable nut as claimed in claim 1, wherein: the surface of the abdicating notch (400) facing to the central axis direction of the pipeline through hole (200) is a cylindrical curved surface.

3. The removable nut as claimed in claim 2, wherein: the cylindrical curved surface is eccentrically disposed with respect to the pipe passing hole (200).

4. The removable nut as claimed in claim 1, wherein: the central axis of the nut body (100) is perpendicular to the end face of the nut.

5. A removable nut as claimed in any one of claims 1 to 4, wherein: the abdicating notch (400) comprises more than two abdicating notches, wherein at least two abdicating notches (400) are opposite to each other.

6. A pipe joint structure comprising the movable nut as claimed in any one of claims 1 to 5, wherein: further comprising:

the pipe (500) is provided with a pipe orifice flange (501) formed by outward expanding the pipe orifice, the outer diameter of the pipe orifice flange (501) is larger than the aperture of the pipe passing hole (200), and the outer diameter of the pipe orifice flange (501) is smaller than the aperture of the flange inner hole (300);

abdication breach (400) with the space size after pipeline clearing hole (200) meet is greater than the external diameter of mouth of pipe flange (501), pipeline (500) pass behind pipeline clearing hole (200), mouth of pipe flange (501) are located in flange hole (300).