CN217836788U

CN217836788U - Clamping and pressing type pipe fitting

Info

Publication number: CN217836788U
Application number: CN202222250469.3U
Authority: CN
Inventors: 方建国
Original assignee: Ningbo Yongxiang Stainless Steel Pipeline Co ltd
Current assignee: Ningbo Yongxiang Stainless Steel Pipeline Co ltd
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2022-11-18
Anticipated expiration: 2032-08-25

Abstract

The application relates to a clamping and pressing type pipe fitting, and belongs to the technical field of pipe joints. The pipe fitting comprises a pipe fitting main body, wherein the pipe fitting main body is provided with a clamping and pressing connector; the clamping and pressing connector is provided with an installation opening, the clamping and pressing connector is provided with an annular sealing convex part, a sealing ring groove arranged corresponding to the sealing convex part is formed in the inner wall of the clamping and pressing connector, and a sealing ring is arranged at the sealing ring groove of the clamping and pressing connector; the clamping and pressing type pipe fitting is characterized by further comprising a sealing assembly, wherein the sealing assembly comprises a sealing cover plate for covering the mounting hole and at least three sliding rods which axially penetrate through two end faces of the sealing cover plate and are uniformly arranged at intervals in the circumferential direction; the sealing cover plate faces to the end face of the sealing ring groove and is adjacent to the end face of the sealing ring groove, and a fixing rod arranged axially is arranged between the sliding rods. The sealing assembly can reduce the attachment amount of dust and impurities on the sealing ring of the clamping and pressing type pipe fitting in the transportation process.

Description

Clamping and pressing type pipe fitting

Technical Field

The application relates to the technical field of pipeline joints, in particular to a clamping and pressing type pipe fitting.

Background

The clamping and pressing type pipe fitting is a common pipe connecting piece and has the advantages of reliable connection, convenience and quickness in installation, excellent economy and the like.

The installation process of the clamping and pressing type pipe fitting and the stainless steel pipe is as follows: inserting the stainless steel pipe into the opening of the clamping and pressing type pipe fitting, and locking the stainless steel pipe in the clamping and pressing type pipe fitting by utilizing the outer side wall where the clamping and pressing tool clamping and pressing sealing ring is positioned after the stainless steel pipe is inserted to a certain depth and is abutted to the sealing ring arranged on the inner wall of the clamping and pressing type pipe fitting.

Because the two ends of the clamping and pressing type pipe fitting are in an opening state, some dust and impurities enter the clamping and pressing type pipe fitting from the opening of the clamping and pressing type pipe fitting and are attached to the sealing ring in the transportation process of the clamping and pressing type pipe fitting. When the operation is pressed to the card formula pipe fitting, through the sealing washer after the extrusion deformation, the surface of sealing washer receives the damage because of impurity and dust to lead to the problem that the card formula pipe fitting appears leaking.

In view of the above-described related art, the inventors have considered that it is desirable to provide a pipe fitting of a snap type capable of reducing the amount of adhesion of dust and foreign substances on a seal ring during transportation.

SUMMERY OF THE UTILITY MODEL

In order to reduce the attached quantity of dust and impurity on the sealing washer in the transportation, this application provides a jam-on pipe fitting.

The application provides a clamping and pressing formula pipe fitting adopts following technical scheme:

the clamping and pressing type pipe fitting comprises a pipe fitting main body, wherein the pipe fitting main body is provided with a clamping and pressing connector; the clamping and pressing connector is provided with an installation opening, the clamping and pressing connector is provided with an annular sealing convex part, a sealing ring groove arranged corresponding to the sealing convex part is formed in the inner wall of the clamping and pressing connector, and a sealing ring is arranged at the sealing ring groove of the clamping and pressing connector; the clamping and pressing type pipe fitting further comprises a sealing assembly, wherein the sealing assembly comprises a sealing cover plate for covering the mounting opening and at least three sliding rods which axially penetrate through two end faces of the sealing cover plate and are uniformly arranged at intervals in the circumferential direction; the sealing cover plate faces the end face of the sealing ring groove and is adjacent to the end face of the sealing ring groove, and an axially arranged fixing rod is arranged between the sliding rods.

The mounting means of sealing washer on the joint is pressed to the card has been optimized, and concrete mode is as follows: firstly, mounting a sealing ring on a sealing assembly, so that the sealing ring is arranged on the inner side of a fixed rod and the outer side of a sliding rod to form a star-shaped structure; then, the sealing assembly is arranged on the clamping and pressing connecting head, and the sealing ring is opposite to the sealing ring groove at the moment; the sliding stem is then removed from the outside of the seal ring, causing the seal ring to recover annular shape from the star shape, thereby snapping into the seal ring groove. The installation mode of the sealing ring on the clamping and pressing connector is simple and convenient, and the probability of dislocation of the sealing ring on the clamping and pressing connector in the installation process is reduced. Moreover, due to the arrangement of the sealing assembly, dust cannot enter the inner cavity of the clamping and pressing type pipe fitting through the mounting port in the transportation process of the clamping and pressing type pipe fitting, so that the attachment amount of dust and impurities on the sealing ring in the transportation process is reduced

Optionally, the dead lever is in the dorsad one side of joint axis is pressed to the card is offered and is used for supplying the joint groove that the sealing washer was arranged works as sealing assembly install in during the joint was pressed to the card, the joint groove with the sealing ring groove is just right.

Through adopting above-mentioned technical scheme, the joint groove be provided with help the location of sealing washer on the dead lever, help keeping when seal assembly installs on the joint is pressed to the card, the sealing washer is just right with the seal ring groove.

Optionally, the sealing cover plate is provided with an installation convex ring which is used for being matched with the inner side wall of the clamping and pressing connector in an inserting mode.

Through adopting above-mentioned technical scheme, disclosed the mounting means of sealed apron and card pressure connector, the above-mentioned inner wall side plug-in connection complex mounting means that uses installation bulge loop and card pressure connector is comparatively convenient simple.

Optionally, a damping ring groove is formed in the outer side wall of the mounting convex ring, and a damping gasket is arranged in the damping ring groove; the outer diameter of the sealing cover plate is larger than that of the clamping and pressing connector.

By adopting the technical scheme, when the mounting convex ring is in splicing fit with the inner side wall of the clamping and pressing connector, the sealing assembly can be fixed on the clamping and pressing connector through the damping gasket arranged in the damping ring groove on the outer side wall of the mounting convex ring, and the sealing assembly has better damping effect and sealing property;

the external diameter of the sealing cover plate is larger than that of the clamping and pressing connector, so that the sealing assembly can be conveniently taken down from the clamping and pressing connector.

Optionally, the seal assembly further comprises a sliding plate located on one side of the clamping and pressing connector, the sliding plate is connected with all the sliding rods, and the end parts of the sealing ring grooves are far away from the sliding rods.

Through adopting above-mentioned technical scheme, thereby can drive all the poles that slide and slide in step through removing the board that slides to make things convenient for and remove all the poles that slide in step from the outside of sealing washer.

Optionally, a first clamping groove is formed in the end face, facing the sliding plate, of the sealing cover plate, and a first magnetic sheet is arranged in the first clamping groove; the sliding plate is provided with a second clamping groove opposite to the first clamping groove, and a second magnetic sheet used for being attracted with the first magnetic sheet is arranged in the second clamping groove.

Through adopting above-mentioned technical scheme, resume deformation and the card of sealing washer and go into the sealed annular groove after, push the slide bar again and press the connector for the sliding plate and the laminating of sealed apron. Based on above-mentioned operating procedure, the setting of first magnetic sheet and second magnetic sheet can reduce card pressure formula pipe fitting in the transportation, and the condition that the board that slides and the pole that slides take place to drop from sealed apron.

Optionally, one side of the sliding plate, which is far away from the clamping and pressing connector, is rotatably provided with a pull ring.

Through adopting above-mentioned technical scheme, the setting of pull ring helps operating personnel to pull out the direction of the sealed apron of board orientation that will slide.

Optionally, the end face of the sliding plate is provided with a containing groove for embedding the pull ring.

Through adopting above-mentioned technical scheme, when the transportation of card pressure formula pipe fitting, the pull ring can be arranged in the storage tank, helps reducing seal assembly's volume.

Optionally, an inner screwed joint is further arranged at one end of the pipe fitting main body, which is far away from the clamping and pressing connector.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the sealing assembly reduces and optimizes the mounting mode of the sealing ring, and is favorable for reducing the phenomenon that dust cannot enter the inner cavity of the clamping and pressing type pipe fitting through the mounting port in the transportation process;

2. the clamping groove is arranged, so that the positioning of the sealing ring on the fixing rod is facilitated;

3. through the setting of the sliding plate, the sliding plate can be slid, all sliding rods are driven to slide synchronously, and all sliding rods are conveniently removed from the outer side of the sealing ring synchronously.

Drawings

Figure 1 is a schematic cross-sectional view of a snap-in fitting and seal assembly of the present application.

Fig. 2 is a schematic cross-sectional view of a snap-fit joint of the present application.

Fig. 3 is a schematic cross-sectional view of a seal assembly of the present application.

Fig. 4 is a partially enlarged schematic view at a in fig. 3.

Fig. 5 is a partially enlarged schematic view at B in fig. 1.

Fig. 6 is a partially enlarged schematic view at C in fig. 3.

Fig. 7 is a schematic view of the seal ring of the present application as installed on a seal assembly.

Description of reference numerals: 1. a tube body; 11. clamping and pressing the connector; 111. an installation port; 112. a sealing protrusion; 113. sealing the ring groove; 114. a seal ring; 115. an outer connecting side wall; 12. an internal thread joint; 121. a rotary interface; 122. a first internal thread; 13. a middle tube section; 2. a seal assembly; 21. sealing the cover plate; 211. installing a convex ring; 212. a damping ring groove; 213. a damping washer; 214. a slip through hole; 215. fixing the rod; 2151. a clamping groove; 216. a first card slot; 217. a first magnetic sheet; 22. a slide bar; 23. a slide plate; 231. a second card slot; 232. a second magnetic sheet; 24. a containing groove; 25. a pull ring; 251. a hinge joint; 252. hinging a shaft; 26. a hinged seat; 261. the groove is hinged.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a clamping and pressing type pipe fitting. Referring to fig. 1, a press-fit pipe includes a pipe body 1 and a sealing assembly 2. The pipe fitting body 1 includes a crimping connector 11 disposed at one end, a female adapter 12 disposed at the other end, and an intermediate pipe section 13 connecting the crimping connector 11 and the female adapter 12. Wherein, the outer diameter of the middle pipe section 13 is smaller than that of the clamping connector 11, and the middle pipe section and the clamping connector are in arc transition.

Referring to fig. 1 and 2, the crimping connector 11 has an attachment opening 111 at an end portion thereof for insertion of a stainless steel pipe. The clamping connector 11 is provided with an annular sealing convex part 112 at one side close to the mounting opening 111, and a sealing ring groove 113 corresponding to the sealing convex part 112 is formed at the inner side wall of the clamping connector 11. The snap connection 11 has an annular sealing ring 114 disposed in the sealing ring groove 113. Wherein, the inner diameter of the sealing ring 114 is smaller than the inner diameter of the clamping connector 11. The engagement connector 11 has an outer connection sidewall 115 formed outside the seal ring groove 113.

Referring to fig. 1 and 3, the seal assembly 2 is mounted to the snap connector 11. The mounting opening 111 for pressing the connector 11 is sealed and covered, so that dust cannot enter the inner cavity of the pressing pipe fitting through the mounting opening 111 in the transportation process of the pressing pipe fitting.

Referring to fig. 1 and 2, the sealing assembly 2 includes a sealing cover plate 21 for covering and mounting the opening 111, three sliding rods 22 axially penetrating the sealing cover plate 21 and uniformly circumferentially spaced, and a sliding plate 23 for connecting all the sliding rods 22.

Referring to fig. 2, 3 and 4, the sealing cover plate 21 has a disk shape. The sealing cover plate 21 is provided with a mounting convex ring 211 which is in plug-in fit with the outer connecting side wall 115 of the clamping and pressing connector 11. The outer side wall of the mounting collar 211 is provided with a damping ring groove 212 and a damping washer 213 is disposed inside the damping ring groove 212. The outer diameter of the sealing cover plate 21 is larger than the outer diameter of the clamping connector 11 at the mounting opening 111. The sealing cover plate 21 is provided with a sliding through hole 214 for the sliding rod 22 to move.

Referring to fig. 1 and 5, the sealing cover plate 21 is further provided with axially arranged fixing rods 215 at an end surface facing the sealing ring groove 113. The sealing cover plate 21 is provided with three fixing bars 215 and arranged between two adjacent sliding bars 22, respectively, so that the fixing bars 215 and the sliding bars 22 are arranged two by two at intervals. The fixing rod 215 is provided with a clamping groove 2151 for arranging the sealing ring 114 at one side opposite to the axis of the clamping and pressing connector 11. When the sealing assembly 2 is installed on the clamping connector 11, the sealing cover plate 21 abuts against the end of the clamping connector 11, and the clamping groove 2151 of the fixing rod 215 is opposite to the sealing ring groove 113.

Referring to fig. 3, the sliding plate 23 is disposed on the other side of the sealing cover plate 21 from the sealing ring groove 113. The slide plate 23 is disc-shaped, and the outer diameter of the slide plate 23 is the same as the outer diameter of the seal cover plate 21.

Referring to fig. 3 and 6, the sealing cover plate 21 has a first slot 216 on an end surface facing the sliding plate 23, and a first magnetic sheet 217 is disposed in the first slot 216. The top surface of the first magnetic sheet 217 is flush with the end surface of the sealing cover plate 21. The first magnetic sheet 217 is fixed in the first clamping groove 216 through glue. The sliding plate 23 is provided with a second slot 231 opposite to the first slot 216, and a second magnetic sheet 232 which is used for being attracted with the first magnetic sheet 217 is arranged in the second slot 231. The top surface of the second magnetic sheet 232 is flush with the end surface of the slide plate 23. The second magnetic sheet 232 is fixed in the second slot 231 by glue.

Referring to fig. 3 and 6, the sliding plate 23 has a receiving groove 24 at a side away from the clamping and pressing connector 11, and a pull ring 25 is disposed in the receiving groove 24. The slide plate 23 is provided at the bottom surface of the accommodating groove 24 with a hinge seat 26 for hinge-mounting the pull ring 25, and the hinge seat 26 has a hinge groove 261. The pull ring 25 has a hinge head 251 rotatably mounted in the hinge groove 261, and the hinge head 251 and the hinge base 26 are connected by a hinge shaft 252 such that the pull ring 25 can be rotatably swung with respect to the slide plate 23.

Referring to fig. 1, the press-fit type pipe forms a rotary interface 121 communicating with an inner cavity of the press-fit type pipe at an end surface of the female connector 12. The cross section of the outer side wall of the female adapter 12 is a regular hexagon, and the inner side wall of the female adapter 12 is provided with a first internal thread 122, so that the female adapter 12 and an external pipe fitting are conveniently installed in a threaded mode.

The steps of mounting the above-described seal assembly 2 to the fitting body 1 with reference to fig. 1 and 7 are as follows:

mounting the sealing ring 114 on the sealing assembly 2 such that the sealing ring 114 is arranged outside the fixing rod 215 and inside the slide rod 22 to form a star-shaped structure; then, the sealing component 2 is installed on the clamping connector 11, and the sealing ring 114 is opposite to the sealing ring groove 113; then, pulling the sliding plate 23, and drawing out the three sliding rods 22 from the sealing cover plate 21, so that the sealing ring 114 is restored to be in a shape of an inverted circular ring from the star shape and is clamped into the sealing ring groove 113; the sliding rod 22 is inserted into the sealing cover plate 21, so that the second magnetic sheet 232 on the sliding plate 23 and the first magnetic sheet 217 of the sealing cover plate 21 are attracted.

Above-mentioned seal assembly 2 closes the installing port 111 lid of card pressure connector 11 department to avoided the dust to enter into the inner chamber that the card pressed connector 11 from installing port 111, and reduced the dust quantity that adsorbs on sealing washer 114, thereby when the card pressure formula pipe fitting carries out the card pressure operation, reduced the probability that sealing washer 114 after the extrusion deformation takes place the damage.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The clamping and pressing type pipe fitting comprises a pipe fitting main body (1), wherein the pipe fitting main body (1) is provided with a clamping and pressing connector (11); the clamping and pressing connector (11) is provided with a mounting opening (111), the clamping and pressing connector (11) is provided with an annular sealing convex part (112) and a sealing ring groove (113) which is formed in the inner wall and corresponds to the sealing convex part (112), and a sealing ring (114) is arranged at the sealing ring groove (113) of the clamping and pressing connector (11); the clamping and pressing type pipe fitting is characterized by further comprising a sealing assembly (2), wherein the sealing assembly (2) comprises a sealing cover plate (21) used for covering the mounting opening (111) and at least three sliding rods (22) which axially penetrate through two end faces of the sealing cover plate (21) and are uniformly arranged at intervals in the circumferential direction; the sealing cover plate (21) is provided with fixing rods (215) which are axially arranged on the end face facing the sealing ring groove (113) and between the adjacent sliding rods (22).

2. The clamping and pressing type pipe fitting according to claim 1, wherein a clamping groove (2151) for the arrangement of the sealing ring (114) is formed in one side of the fixing rod (215) facing away from the axis of the clamping and pressing connector (11), and when the sealing assembly (2) is installed on the clamping and pressing connector (11), the clamping groove (2151) is opposite to the sealing ring groove (113).

3. A press-fit pipe fitting according to claim 1, wherein the sealing cover plate (21) is provided with a mounting convex ring (211) for inserting and matching with the inner side wall of the press-fit connector (11).

4. The pipe fitting of claim 3, wherein the outer side wall of the mounting collar (211) is provided with a damping ring groove (212) and a damping washer (213) is arranged in the damping ring groove (212); the outer diameter of the sealing cover plate (21) is larger than that of the clamping and pressing connector (11).

5. The pipe fitting of claim 1, wherein the sealing assembly (2) further comprises a sliding plate (23) located on a side of the sealing cover plate (21) far away from the clamping connector (11), and the sliding plate (23) connects ends of all the sliding rods (22) far away from the sealing ring groove (113).

6. The press-fit pipe fitting of claim 5, wherein the sealing cover plate (21) is provided with a first clamping groove (216) at an end surface facing the sliding plate (23), and a first magnetic sheet (217) is arranged in the first clamping groove (216); the sliding plate (23) is provided with a second clamping groove (231) which is just opposite to the first clamping groove (216), and a second magnetic sheet (232) which is used for being attracted with the first magnetic sheet (217) is arranged in the second clamping groove (231) of the sliding plate (23).

7. A press-fit pipe fitting according to claim 5, wherein a pull ring (25) is rotatably mounted on one side of the sliding plate (23) far away from the press-fit connector (11).

8. The press-fit pipe fitting according to claim 7, wherein the end surface of the sliding plate (23) is provided with a receiving groove (24) for the pull ring (25) to be inserted into.

9. The pipe fitting of claim 1, wherein the pipe fitting body (1) is further provided with an internal thread joint (12) at an end away from the clamp connector (11).