CN111720635A - Groove-free pipeline connecting piece - Google Patents

Groove-free pipeline connecting piece Download PDF

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Publication number
CN111720635A
CN111720635A CN202010637488.4A CN202010637488A CN111720635A CN 111720635 A CN111720635 A CN 111720635A CN 202010637488 A CN202010637488 A CN 202010637488A CN 111720635 A CN111720635 A CN 111720635A
Authority
CN
China
Prior art keywords
frustum
diameter end
clamping piece
shaped structure
clamp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202010637488.4A
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Chinese (zh)
Inventor
谭岩
王延君
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong 100tong Casting Co ltd
Original Assignee
Shandong 100tong Casting Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong 100tong Casting Co ltd filed Critical Shandong 100tong Casting Co ltd
Priority to CN202010637488.4A priority Critical patent/CN111720635A/en
Publication of CN111720635A publication Critical patent/CN111720635A/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/0206—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the collar not being integral with the pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
    • F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/0237—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member specially adapted for use with attachments, e.g. reduction units, T-pieces, bends or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F16L19/062—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends specially adapted for use with attachments, e.g. reduction units, T-pieces, bends or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F16L19/065—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring

Abstract

The invention is suitable for the technical field of pipeline connection, and provides a groove-free pipeline connecting piece, which comprises: the first connecting seat comprises a first accommodating cavity with a frustum shape and a first connecting wall with an internal thread structure; the first clamping piece is provided with a frustum-shaped structure attached to the cavity wall of the first accommodating cavity, the thin diameter end of the frustum-shaped structure of the first clamping piece is a preset distance away from the thin diameter end of the first accommodating cavity, and the first clamping piece is provided with a notch with a preset width. Preferably, the present invention may further include a second connecting seat corresponding to the first connecting seat. Therefore, the invention can save a clamping groove arranged on the existing pipeline and can realize the quick fixed connection between the pipeline and the joint and between the pipelines.

Description

Groove-free pipeline connecting piece
Technical Field
The invention relates to the technical field of pipeline connection, in particular to a groove-free pipeline connecting piece.
Background
The operations of joint connection in pipeline construction are generally: the two nozzles to be connected are aligned and connected by installing a special connecting piece. However, the positions of the pipe joints may be in various places, so that the conventional clamping pieces are inconvenient to operate when in use, for example, in the patents with chinese patent publication No. CN201748094U and the name "clamp type pipe joint", the disclosed clamp type pipe joint is not only the type of joint connecting piece, but also the two ends of the joint connecting piece are locked by bolts in a matching manner. This kind of structure need all fix both ends, and work load is great, and this kind of structure both ends all need set up the flange moreover to set up with bolt complex through-hole, make the area of flange great relatively like this, also relatively more in the use of raw materials.
Further, as in the chinese patent application No. 2009801204520 entitled "clamp fitting for clamping together coupling sleeves on pipes," it discloses a clamp fitting having a hinge at one end. Although the other end of the hinge is only locked and fixed by bolts during installation, the hinged end needs manpower or mechanical equipment to be assembled in advance.
In an existing pipeline connection structure, as shown in fig. 1, the pipeline connection structure generally includes a pipeline 1 and a pipeline 2 to be connected, where the pipeline 1 is provided with a clamping groove 6, and the pipeline 2 is provided with a clamping groove 7. The two are connected by clamping pieces 3 and 4, and a sealing ring 5 is arranged inside the two. The connection structure can ensure the performance of pipeline connection only by arranging the clamping groove.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
Disclosure of Invention
In view of the above-mentioned drawbacks, an object of the present invention is to provide a groove-free pipe connector, which can eliminate a slot on an existing pipe, and can realize quick fixed connection between a pipe and a joint and between pipes.
In order to achieve the above object, the present invention provides a groove-free pipe connection, comprising:
the first connecting seat comprises a first accommodating cavity with a frustum shape and a first connecting wall with an internal thread structure;
the first clamping piece is provided with a frustum-shaped structure attached to the cavity wall of the first accommodating cavity, the thin diameter end of the frustum-shaped structure of the first clamping piece is a preset distance away from the thin diameter end of the first accommodating cavity, and the first clamping piece is provided with a notch with a preset width.
According to the channel-free pipeline connecting piece, the first clamping piece is provided with at least two convex edges which are annularly arranged on the inner wall of the first clamping piece, and the convex edges incline to the thick-diameter end of the frustum-shaped structure of the first clamping piece.
According to the groove-free pipeline connecting piece, the first clamping piece comprises three convex edges which are respectively arranged at the thick-diameter end, the thin-diameter end and the middle position of the frustum-shaped structure of the first clamping piece.
According to the groove-free pipe connection piece of the present invention, the groove-free pipe connection piece further comprises:
the second connecting seat comprises a second accommodating cavity with a frustum shape and a second connecting wall which is provided with an external thread structure and matched with the first connecting wall;
the second clamping piece is provided with a frustum-shaped structure which can be attached to the cavity wall of the second accommodating cavity, the thin diameter end of the frustum-shaped structure of the second clamping piece and the thin diameter end of the second accommodating cavity are at a preset distance, and the second clamping piece is provided with a notch with a preset width.
According to the channel-free pipeline connecting piece, the second clamping piece is provided with at least two convex edges which are annularly arranged on the inner wall of the first clamping piece, and the convex edges incline to the thick-diameter end of the frustum-shaped structure of the second clamping piece.
According to the groove-free pipeline connecting piece, the second clamping piece comprises three convex edges which are respectively arranged at the thick-diameter end, the thin-diameter end and the middle position of the frustum-shaped structure of the second clamping piece.
The groove-free pipeline connecting piece further comprises:
and the gasket is arranged between the first clamping piece and the second clamping piece.
According to the groove-free pipeline connecting piece, the thick-diameter end of the frustum-shaped structure of the first clamping piece is connected with the first positioning edge arranged along the axial direction;
the second clamping piece is characterized in that the second positioning edge is axially arranged at the thick-diameter end of the frustum-shaped structure of the second clamping piece.
According to the groove-free pipeline connecting piece, the thick-diameter end of the frustum-shaped structure of the first clamping piece is a preset distance away from the outer end face of the first accommodating cavity.
According to the groove-free pipeline connecting piece, the thick-diameter end of the frustum-shaped structure of the second clamping piece is a preset distance away from the outer end face of the second accommodating cavity.
The first connecting seat is internally provided with the first accommodating cavity with the frustum shape so as to accommodate the clamping piece, and meanwhile, the first connecting seat is also provided with the first connecting wall with the internal thread structure, so that the first connecting wall can be matched with the corresponding opposite end connecting seat or the corresponding connecting head. The first accommodating cavity is used for accommodating a first clamping piece, the first clamping piece is provided with a frustum-shaped structure which is attached to the cavity wall of the first accommodating cavity, the thin diameter end of the frustum-shaped structure of the first clamping piece is a preset distance away from the thin diameter end of the first accommodating cavity, and the first clamping piece is provided with a notch with a preset width. When the end face of the thick-diameter end of the first clamping and connecting piece is stressed, the first clamping and connecting piece can contract along the radial direction due to the acting force of the frustum-shaped structure, so that the pipeline is clamped. The invention can also be provided with a second connecting seat corresponding to the first connecting seat according to requirements. Therefore, the invention can save a clamping groove arranged on the existing pipeline and can realize the quick fixed connection between the pipeline and the joint and between the pipelines.
Drawings
FIG. 1 is a schematic diagram of a prior art configuration;
FIG. 2A is a schematic structural view of a groove-free pipe coupling according to an embodiment of the present invention;
FIG. 2B is a schematic view of a first connecting base according to an embodiment of the invention;
FIG. 3A is a schematic view of a first clamping member according to an embodiment of the invention;
FIG. 3B is a schematic view of a first clip member of the embodiment of FIG. 3A;
FIG. 4A is a schematic view of a connection structure according to an embodiment of the present invention;
FIG. 4B is a schematic diagram of the structure of the embodiment shown in FIG. 4A;
FIG. 5A is a schematic view of the connection structure of the present invention with a tee;
FIG. 5B is a schematic diagram of the structure of the embodiment shown in FIG. 5A;
FIG. 6A is a schematic structural diagram of an embodiment of the present invention;
FIG. 6B is a schematic diagram of the structure of the embodiment shown in FIG. 6A;
FIG. 6C is a schematic structural diagram of the embodiment shown in FIG. 6A;
FIG. 6D is a schematic view of the seal ring of the embodiment shown in FIG. 6A;
FIG. 7A is a schematic structural view of the pipe coupling of the present invention;
FIG. 7B is a schematic view of a first connecting seat according to the present invention;
FIG. 7C is a schematic view of a second connecting seat structure of the present invention;
FIG. 7D is a schematic view of a clip construction of the present invention;
FIG. 7E is a schematic view of a clip construction of the present invention;
FIG. 7F is a schematic view of a clip construction of the present invention;
FIG. 8A is a schematic structural view of a pipe coupling according to yet another embodiment of the present invention;
fig. 8B is a schematic structural view of the pipe connection of the embodiment shown in fig. 8A.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 2A, the present invention provides a groove-free pipe connector, which includes a first connector base 10 and a first clamp 20, wherein:
the first connection seat 10 includes a first accommodation cavity 11 having a frustum shape, and a first connection wall 12 having an internal thread structure. In one embodiment, as shown in fig. 2B, the first connecting wall 12 is a cylindrical structure with internal threads such that it can be threaded with a corresponding structure of the butt end. The first connecting seat 10 has a tool withdrawal groove 90 for easy processing, and each subsequent connecting seat is provided with the structure, and the functions thereof are the same and will not be further described.
The first clamping member 20 has a frustum-shaped structure which is attached to the wall of the first accommodating chamber 11. A certain gap is reserved between the small diameter end of the frustum-shaped structure of the first clamping piece 20 and the small diameter end of the first accommodating cavity 11, so that the first clamping piece 20 can be forced to move towards the small diameter end of the first accommodating cavity 11. In addition, the first clamping member 20 is provided with a notch 21 having a predetermined width, as shown in fig. 3A and 3B. The first clamping member 20 is made of stainless steel, and is allowed to contract radially inward under force due to the provision of the notch 21.
In specific application, the pipeline to be connected is inserted into the first accommodating cavity 11 and the first clamping member 20 to be connected with the butt joint end. In the connection process, the large diameter end of the first clamping piece 20 receives the acting force of the butt joint end and moves towards the small diameter end of the first accommodating cavity 11, and based on the matching of the frustum-shaped structures, the first clamping piece 20 contracts inwards to compress the pipeline. Preferably, to ensure the close fit between the inner wall of the first clamp 20 and the pipe, the frustum-shaped structure of the first clamp 20 is machined to have a uniform inner diameter, which is slightly larger than the outer diameter of the pipe.
The butt joint end of the invention can be an intermediate connecting piece which is pre-connected with other pipelines, such as a two-way joint, a three-way joint, an elbow connecting piece and the like.
Referring to fig. 4A and 4B, a connection structure of a channel-free pipe connector and an elbow according to the present invention is shown. In this embodiment, the outer wall of the first butt end portion 30 of the elbow connector is provided with an external thread structure that can be engaged with the first connection wall 12, so that the first butt end portion 30 can be screwed to the inside of the first connection wall 12. During the rotation of the first connecting wall 12, the first clamping member 20 is pushed toward the first abutting end 30, and the end surface of the large diameter end of the first clamping member 20 contacts the end surface of the first abutting end 30, and generates a reaction force along with the pushing, thereby allowing the first clamping member 20 to act on the first receiving cavity 11, and the first clamping member 20 contracts to clamp the pipe in the radial direction. Meanwhile, a sealing ring 31 is arranged in the first butt end 30, and the pipeline is pre-inserted to form an extrusion sealing structure with the sealing ring, so that the pipeline has a good sealing state after being clamped.
To ensure that the first abutting end 30 is in contact with the end face of the large diameter end of the first clamp 20, the large diameter end of the first clamp 20 in this embodiment has a predetermined distance from the outer end face of the first accommodating cavity 11, i.e., the large diameter end of the first clamp 20 is located outside the first accommodating cavity 11 so that it has a required working distance to be pushed in.
In this embodiment, in order to facilitate the rotational pushing of the first connecting seat 10, the outer wall thereof may be configured as an existing hexagonal structure, and the corresponding rotation may be achieved by a wrench with a corresponding shape. In addition, because the structures of the two ends of the elbow are the same, and the pipeline connecting structure of the other end is the same, the description is omitted.
Based on the threaded structure arrangement of the pipe connecting piece and the butt joint end, the groove structure of the pipe or the connecting end can be omitted. In conjunction with the three-way structure shown in fig. 5A and 5B, there are three identically configured second butt ends 40. The second butt end 40 has the same structure as the first butt end 30 in the embodiment shown in fig. 4A, and is not described again here. In a specific application, each pipe is inserted into the corresponding second butt end portion 40, and the first connection seat 10 is tightened.
Fig. 6A and 6B are schematic views of a two-way connection structure according to an embodiment of the invention. The structure of the first connecting socket 10 in this embodiment is the same as that in the previous embodiment. In this embodiment, the third mating end 50 of the two-way connection is the same as the first mating end 30 described above. The difference is that the two-way connection structure has an intermediate pipe joint 51, and the pipes at both ends are inserted and butt-jointed with the intermediate pipe joint 51, and then are rotated and clamped by the first connection seat 10.
The seal ring 31 in fig. 6A may be adaptively replaced with another seal ring 52 shown in fig. 6C, and certainly, the corresponding seal ring accommodating groove needs to be adjusted correspondingly, and those skilled in the art may make no change according to actual requirements, and details are not described herein.
In the above embodiments, the first clamping member 20 may be provided with at least two flanges 22 surrounding the inner wall thereof, for example, a flange 22 is provided at the inner portion of the large diameter end and the small diameter end, and the flange 22 is inclined toward the large diameter end of the frustum-shaped structure of the first clamping member 20. After the first clamping member 20 clamps the pipeline, the convex edge 22 is pressed on the outer wall of the pipeline, and a barb structure is formed based on the inclined direction of the convex edge, so that the pipeline is prevented from falling off from the clamping structure after bearing the internal large liquid pressure. In order to maintain the uniform force of the clamping members without increasing the complexity of the process, the present invention preferably provides a flange 22 at each of the large diameter end, the small diameter end and the middle of the frustum-shaped structure of the first clamping member.
The aforementioned fig. 4A-6C disclose the connection of the present invention to various intermediate adapters. And preferably, the invention can be adaptively arranged to communicate the two pipelines.
Referring to fig. 7A to 7C, in the embodiment, the groove-free pipe connector includes a first connecting seat 10, a second connecting seat 60 and a gasket 80. A first accommodating cavity 11 in a frustum shape and a first clamping piece 20 attached to the cavity wall of the first accommodating cavity 11 are arranged in the first connecting seat 10. The frusto-conical configuration of the first clamp member 20 is substantially the same as the embodiment shown in figure 1. The difference is that the first clamping member 20 of the present embodiment has a first positioning edge 23 disposed along the axial direction connected to the large diameter end of the frustum-shaped structure.
The second coupling seat 60 includes a second receiving cavity 61 having a frustum shape, and a second coupling wall 62 having an external thread structure and cooperating with the first coupling wall 12. A second clamping piece 70 is arranged in the second connecting seat 60, and has a frustum-shaped structure which can be attached to the cavity wall of the second accommodating cavity 61, a predetermined distance is reserved between the small-diameter end of the frustum-shaped structure of the second clamping piece 70 and the small-diameter end of the second accommodating cavity 61, and a notch 21 with a predetermined width is formed in the second clamping piece 70. Correspondingly, the second positioning edge 71 arranged along the axial direction is connected to the thick-diameter end of the frustum-shaped structure of the second clamping piece 70. The gasket 80 is disposed between the first clamp 20 and the second clamp 70 and has a through hole 81, the diameter of the through hole 81 is slightly smaller than the outer diameter of the pipe, so that the pipe cannot move into the space between the opposite ends.
In the above structure, the sealing ring 31 is disposed in the rear space of the first connecting seat 10, and a pipe is inserted through the rear space and the first clamping member 20 and abuts against the gasket 80. Similarly, the sealing ring 31 is also disposed in the tail space of the second connecting seat 60, a pipe penetrates through the tail space and the second clamping member 70, and abuts against the gasket 80, and the first positioning edge 23 and the second positioning edge 71 have a positioning function, so that the assembly of the components is not disordered. After the assembly, the first connecting seat 10 and/or the second connecting seat 60 are/is rotated, so that the first clamping member 20 and the second clamping member 70 clamp the corresponding pipes, and the pipe connection is completed.
Although the first clip member 20 in this embodiment is slightly different from the first clip member 20 shown in fig. 4A to 6C, it should be understood that the basic structure and function of the first clip member 20 and the second clip member 70 in this embodiment are also identical to the first clip member 20 in the previous embodiment. Correspondingly, in order to enhance the pipe clamping effect, the first clamping member 20 and the second clamping member 70 are also provided with at least two convex edges 22 surrounding the inner wall, the arrangement position and structure are the same as those of the previous embodiment, and detailed description is omitted.
Fig. 8A and 8B are schematic structural diagrams of another embodiment of the present invention, and the structure of this embodiment is substantially the same as the embodiment shown in fig. 7A, and is not repeated here.
In summary, the first accommodating cavity with a frustum shape is arranged inside the first connecting seat to accommodate the clamping member, and the first connecting seat is further provided with the first connecting wall with an internal thread structure, so that the first connecting wall can be matched with the corresponding opposite connecting seat or the corresponding connecting head. The first accommodating cavity is used for accommodating a first clamping piece, the first clamping piece is provided with a frustum-shaped structure which is attached to the cavity wall of the first accommodating cavity, the thin diameter end of the frustum-shaped structure of the first clamping piece is a preset distance away from the thin diameter end of the first accommodating cavity, and the first clamping piece is provided with a notch with a preset width. When the end face of the thick-diameter end of the first clamping and connecting piece is stressed, the first clamping and connecting piece can contract along the radial direction due to the acting force of the frustum-shaped structure, so that the pipeline is clamped. The invention can also be provided with a second connecting seat corresponding to the first connecting seat according to requirements. Therefore, the invention can save a clamping groove arranged on the existing pipeline and realize the quick fixed connection between the pipeline and the joint and among the pipelines.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. A groove-free pipe coupling, comprising:
the first connecting seat comprises a first accommodating cavity with a frustum shape and a first connecting wall with an internal thread structure;
the first clamping piece is provided with a frustum-shaped structure attached to the cavity wall of the first accommodating cavity, the thin diameter end of the frustum-shaped structure of the first clamping piece is a preset distance away from the thin diameter end of the first accommodating cavity, and the first clamping piece is provided with a notch with a preset width.
2. The channel-free pipe coupling of claim 1, wherein the first clamp has at least two flanges encircling an inner wall of the first clamp, the flanges being inclined toward a larger diameter end of the frustum-shaped structure of the first clamp.
3. The channel-less conduit coupling of claim 2, wherein the first clamp includes three flanges disposed at a major diameter end, a minor diameter end, and a middle portion of the frustum-shaped structure of the first clamp.
4. The channel-free pipe connection of claim 1, further comprising:
the second connecting seat comprises a second accommodating cavity with a frustum shape and a second connecting wall which is provided with an external thread structure and matched with the first connecting wall;
the second clamping piece is provided with a frustum-shaped structure which can be attached to the cavity wall of the second accommodating cavity, the thin diameter end of the frustum-shaped structure of the second clamping piece and the thin diameter end of the second accommodating cavity are at a preset distance, and the second clamping piece is provided with a notch with a preset width.
5. The channel-free pipe coupling of claim 4, wherein the second clamp has at least two flanges encircling an inner wall of the first clamp, the flanges being inclined towards a larger diameter end of the frustum-shaped structure of the second clamp.
6. The channel-less conduit connector of claim 5 wherein the second clip includes three of the flanges disposed at the larger diameter end, the smaller diameter end, and the middle of the frustum-shaped structure of the second clip.
7. The channel-free pipe connection of claim 4, further comprising:
and the gasket is arranged between the first clamping piece and the second clamping piece.
8. The channel-free pipe coupling of claim 7, wherein the first clamp member has a frustum-shaped configuration with a first locating edge attached to a larger diameter end thereof, the first locating edge being disposed axially;
the second clamping piece is characterized in that the second positioning edge is axially arranged at the thick-diameter end of the frustum-shaped structure of the second clamping piece.
9. The channel-free pipe connection according to any one of claims 1 to 8, wherein the thick diameter end of the frustum-shaped structure of the first clamp member has a predetermined distance from the outer end surface of the first accommodation cavity.
10. The channel-free pipe connection according to any one of claims 4 to 8, wherein the large diameter end of the frustum-shaped structure of the second clamp member has a predetermined distance from the outer end surface of the second receiving cavity.
CN202010637488.4A 2020-07-03 2020-07-03 Groove-free pipeline connecting piece Withdrawn CN111720635A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010637488.4A CN111720635A (en) 2020-07-03 2020-07-03 Groove-free pipeline connecting piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010637488.4A CN111720635A (en) 2020-07-03 2020-07-03 Groove-free pipeline connecting piece

Publications (1)

Publication Number Publication Date
CN111720635A true CN111720635A (en) 2020-09-29

Family

ID=72571567

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010637488.4A Withdrawn CN111720635A (en) 2020-07-03 2020-07-03 Groove-free pipeline connecting piece

Country Status (1)

Country Link
CN (1) CN111720635A (en)

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