CN217108600U - Pipe joint - Google Patents

Abstract

The utility model provides a pipe joint, which comprises a joint and a nut, wherein the joint and the nut are of hollow structures and are in threaded connection with each other, a guide sheet which can be deformed is arranged inside the nut, the cross section of the guide sheet is in an inclined arrangement, and the guide sheet is arranged inside the nut; the connector is characterized in that one end of the connector, which is in contact with the nut, is an extrusion section, the outer side wall of the extrusion section is provided with an external thread, the inner side wall of the nut is provided with an internal thread matched with the external thread, and the guide piece and the inner side wall of the nut enclose an advance and retreat area for accommodating the extrusion section; the extrusion section directly acts on the guide sheet and reacts on the extrusion section, so that the screw connection between the extrusion section and the screw cap is firmer; thereby making the overall connection more secure.

Description

Pipe joint

Technical Field

The utility model belongs to the technical field of the coupling, concretely relates to coupling.

Background

In the application field of peristaltic pumps, an internal pipe of the peristaltic pump is a hose, an external pipe of the peristaltic pump is a hard pipe, two pipelines are required to be connected in practical application, and liquid must be completely sealed in the pipes during connection, so that normal conveying of the liquid is guaranteed, and the phenomena of omission and leakage cannot occur.

Chinese patent CN202020321507.8 discloses an anticreep leak-proof pipe joint, which comprises a joint body, a sealing ring, an anticreep ring and a locking cover, wherein the sealing ring and a guiding sleeve are respectively arranged at the first and second step surfaces of the joint body, the conical surface opening of the guiding sleeve is matched with the anticreep ring, the joint body is in threaded connection with the locking cover, the locking cover extends out of the convex ring and abuts against the end surface of the anticreep ring, and the locking cover is axially provided with a through hole for inserting a gas pipe. The utility model discloses a rotatory locking cover tightens up, makes the inside axial of anticreep ring be the displacement, and the elastic deformation who leads to the anticreep ring forms and has played good anticreep effect to the trachea parcel, the utility model discloses it is quick to have the installation, and simple dexterity saves space, and the locking force is big, and sealing performance is good, can satisfy the needs of pneumatic stringing. The utility model discloses a although can play certain sealed and anticreep effect, its integral connection knot structure is comparatively complicated, also is not convenient for the staff equipment.

Therefore, the technical problems in the prior art still need to be solved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an embodiment of the present invention provides a pipe joint, including a joint and a nut, where the joint and the nut are of a hollow structure and are screwed with each other, a deformable guide sheet is arranged inside the nut, a cross section of the guide sheet is arranged in an inclined manner, and the guide sheet is arranged inside the nut; the connector is in with the one end of nut contact is the extrusion section, the lateral wall of extrusion section is equipped with the external screw thread, the inside wall of nut is equipped with the internal thread with aforementioned external screw thread adaptation, the guide vane with the inside wall of nut encloses into and is used for accomodating the advance and retreat region of extrusion section. In practical use, the hard pipe, the joint and the nut can be integrally stabilized through interaction, and the structure is simple and easy to assemble and disassemble; the extrusion section directly acts on the guide sheet, and thus the extrusion section can be reacted (the screw connection between the extrusion section and the screw cap is firmer); thereby making the overall connection more secure.

Further, before the extrusion section is not screwed into the advancing and retreating area, the minimum inner diameter of the extrusion section is not smaller than that of the guide sheet, and the front end of the inner wall of the extrusion section is inclined. In practical use, in the process of vertically inserting the hard tube into the joint, the hard tube firstly passes through the guide sheet and then enters the deep position of the joint, and after the hard tube is positioned, the nut, the joint and the hard tube can be fixed mutually by rotating the nut; due to the size arrangement, the adjusting time of the screw cap by workers can be greatly shortened, so that the mounting efficiency is further improved.

Furthermore, the guide sheet is divided into a bending part and an extruding part along the length direction of the aperture of the nut, the inner diameter of the extruding part is smaller than that of the bending part, and one end of the bending part, which is far away from the extruding part, is fixed inside the nut. In actual use, the guide sheet is in extrusion contact with the hard tube in the deformation process, so that the overall stability and the sealing performance of the device are gradually improved; and the bending part can satisfy the deformation demand of guide vane, and the extrusion portion then can fully contact with the hard tube lateral wall, further improves the leakproofness that connects.

Furthermore, the joint still includes the tight section of tube head clamp that is used for the card to put the hard tube, the tight section of tube head clamp with the adjacent setting of extrusion section.

Furthermore, the inner wall of the tube head clamping section is of a stepped structure, the size of the stepped structure is reduced along the direction away from the guide piece, and two adjacent layers are transited through a conical surface. In practical use, the pipe head clamping section with the stepped structure can meet the pre-fixing requirement of hard pipes with different sizes, so that the hard pipes and the screw caps can be kept in a vertical direction after the screw caps are rotated, and the installation efficiency of workers is improved.

Further, the guide plate is of an annular plate structure.

The utility model has the advantages that:

the utility model provides a pipe joint, which comprises a joint and a nut, wherein the joint and the nut are of a hollow structure and are in threaded connection with each other, a guide sheet which can deform is arranged inside the nut, the cross section of the guide sheet is in an inclined arrangement, and the guide sheet is arranged inside the nut; the connector is characterized in that one end of the connector, which is in contact with the nut, is an extrusion section, the outer side wall of the extrusion section is provided with an external thread, the inner side wall of the nut is provided with an internal thread matched with the external thread, and the guide piece and the inner side wall of the nut enclose an advance and retreat area for accommodating the extrusion section; the extrusion section directly acts on the guide sheet and reacts on the extrusion section, so that the screw connection between the extrusion section and the screw cap is firmer; thereby making the overall connection more secure.

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

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a usage state diagram of a pipe joint according to an embodiment of the present invention.

Fig. 2 is another usage state diagram of a pipe joint according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a nut according to an embodiment of the present invention.

Fig. 4 is a schematic end structure view of the nut according to the embodiment of the present invention.

Fig. 5 is a schematic view of the internal structure of the joint in the embodiment of the present invention.

Fig. 6 is a perspective view of a pipe joint according to an embodiment of the present invention.

Reference numerals:

10. a joint; 20. a nut; 30. a guide piece; 31. a bending section; 32. a pressing section; 40. an extrusion section; 50. an advancing/retreating region; 60. a tube head clamping section; 70. and (4) hard tubes.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1 to 6, fig. 1 is a diagram illustrating a usage state of a pipe joint according to an embodiment of the present invention, the pipe joint includes a joint 10 and a nut 20, the joint 10 and the nut 20 are hollow and are screwed together, and the usage state is characterized in that: a deformable guide sheet 30 is arranged inside the nut 20, the section of the guide sheet 30 is obliquely arranged, and the guide sheet 30 is arranged inside the nut 20; the connector 10 is provided with an extruding section 40 at one end contacting with the nut 20, the outer side wall of the extruding section 40 is provided with an external thread, the inner side wall of the nut 20 is provided with an internal thread matched with the external thread, and the guide piece 30 and the inner side wall of the nut 20 enclose an advance and retreat area 50 for accommodating the extruding section 40. Specifically, the connector 10 further includes a tube head clamping section 60 for clamping the hard tube 70, and the tube head clamping section 60 is disposed adjacent to the extruding section 40. In practical use, the guide plate 30 has an annular plate structure.

In some preferred embodiments, before the pressing section 40 is not screwed into the advance/retreat region 50, the minimum inner diameter of the pressing section 40 is not smaller than the minimum inner diameter of the guide blade 30, and the front end of the inner wall of the pressing section 40 is inclined. Specifically, the guide piece 30 is divided into a bending portion 31 and a pressing portion 32 along the length direction of the aperture of the nut 20, the inner diameter of the pressing portion 32 is smaller than the inner diameter of the bending portion 31, and one end of the bending portion 31, which is far away from the pressing portion 32, is fixed inside the nut 20.

In some preferred embodiments, referring to fig. 1-2, fig. 2 is another use state diagram of a pipe joint according to an embodiment of the present invention, the inner wall of the pipe joint clamping section 60 has a step structure, the step structure has a diameter decreasing along a direction away from the guide piece 30, and two adjacent steps are transited by a tapered surface.

The utility model discloses a theory of operation is: when the hard tube 70 is inserted to the corresponding depth of the coupling 10, the nut 20 is tightened, securing the nut 20, the coupling 10, and the hard tube 70 together.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.

Claims (7)

1. The utility model provides a coupling, includes joint (10) and nut (20), joint (10) and nut (20) are hollow structure and looks spiro union, its characterized in that: the guide piece (30) capable of deforming is arranged inside the nut (20), the section of the guide piece (30) is obliquely arranged, and the guide piece (30) is arranged inside the nut (20);

the connector (10) is provided with an extruding section (40) at one end contacted with the screw cap (20), the outer side wall of the extruding section (40) is provided with an external thread, the inner side wall of the screw cap (20) is provided with an internal thread matched with the external thread, and the guide piece (30) and the inner side wall of the screw cap (20) enclose an advancing and retreating area (50) for accommodating the extruding section (40).

2. A pipe joint according to claim 1, wherein: before the extrusion section (40) is not screwed into the advancing and retreating area (50), the minimum inner diameter of the extrusion section (40) is not smaller than that of the guide sheet (30), and the front end of the inner wall of the extrusion section (40) is inclined.

3. A pipe joint according to claim 2, wherein: the guide piece (30) is divided into a bending portion (31) and a pressing portion (32) along the length direction of the aperture of the nut (20), the inner diameter of the pressing portion (32) is smaller than that of the bending portion (31), and one end of the bending portion (31) is far away from the pressing portion (32) and is fixed inside the nut (20).

4. A pipe joint according to any one of claims 1 to 3, wherein: the connector (10) further comprises a tube head clamping section (60) used for clamping the hard tube (70), and the tube head clamping section (60) is adjacent to the extrusion section (40).

5. The coupling of claim 4, wherein: the inner wall of the tube head clamping section (60) is of a stepped structure, the size of the stepped structure is reduced along the direction away from the guide piece (30), and two adjacent layers are transited through a conical surface.

6. A pipe joint according to any one of claims 1 to 3, wherein: the guide sheet (30) is of an annular sheet structure.

7. The coupling of claim 4, wherein: the guide sheet (30) is of an annular sheet structure.

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