Stainless steel pipe fitting with plug-in joint

Abstract

The utility model relates to the technical field of stainless steel pipe fittings, and discloses a stainless steel pipe fitting with a plug-in mounting connector, which comprises a connecting pipe, two ends of the connecting pipe are fixedly connected and communicated with annular baffle plates, and one sides of the two annular baffle plates far away from each other are connected with a pipe inserting fitting and an extrusion assembly. The two pipe inserting pieces are located on the inner sides of the two extrusion assemblies correspondingly. According to the stainless steel pipe fitting with the plug-in mounting connector, the part, inserted into the plug-in mounting connector, of the stainless steel pipe fitting can be extruded on the plug-in mounting connector through mutual cooperation of the extrusion assembly and the plug-in mounting connector, so that the stainless steel pipe fitting and the plug-in mounting connector are fixedly mounted, the pipe fitting is prevented from falling off, and the connection firmness of the pipe fitting is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipe fittings, in particular to a stainless steel pipe fitting with a plug-in joint. Background Art

[0002] Stainless steel pipe fittings are a type of pipe fittings. They are made of stainless steel, so they are called stainless steel pipe fittings. They include: stainless steel elbows, stainless steel tees, stainless steel crosses, stainless steel reducers, stainless steel pipe caps, etc. According to the connection method, they can be divided into four categories: socket-type stainless steel pipe fittings, threaded stainless steel pipe fittings, flanged stainless steel pipe fittings and welded stainless steel pipe fittings. Most of the existing stainless steel pipe fittings are connected by flange connection, welding and other methods. Since these connection methods require the use of tools to assist in multiple operations, they are very cumbersome and have low efficiency in connecting pipe fittings. In order to improve the connection efficiency of pipe fittings, stainless steel pipe fittings with plug-in joints will be used. Through the connection of plug-in joints, stainless steel pipe fittings can be connected more quickly, thereby improving the connection and installation efficiency of stainless steel pipe fittings.

[0003] For example, the patent with announcement number CN214146907U announces a stainless steel pipe fitting with a plug-in joint, including a connecting pipe, wherein both ends of the connecting pipe are symmetrically and fixedly connected with a cylinder, two stainless steel pipe fittings are arranged inside the connecting pipe, two mutually symmetrical arc plates are arranged inside the cylinder, and the stainless steel pipe fitting is between the two arc plates, and the outer walls of the two arc plates are fixedly connected with a wedge block, and the side wall of the cylinder is provided with an inclined groove matching the wedge block and slidingly cooperating with it, a sliding mechanism is arranged at one end of the wedge block, and a pushing mechanism is arranged on one side of the wedge block, which is conducive to connecting the stainless steel pipe fittings and improving the sealing performance.

[0004] However, the plug-in connector in the above technology still has the following problems:

[0005] When the arc plate is pressed against the end of the stainless steel pipe fitting by bolts, the end of the stainless steel pipe fitting may be squeezed and deformed inward, which will reduce the connection strength between the end of the stainless steel pipe fitting that has deformed inward and the connecting pipe. During use, the stainless steel pipe fitting may be detached from the plug-in connector, resulting in poor connection strength. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a stainless steel pipe fitting with a plug-in joint, such as: the end of the stainless steel pipe fitting can be more firmly connected to the plug-in joint, the risk of the plug-in joint being detached from the end of the stainless steel pipe fitting is reduced, and the connection stability of the plug-in joint is improved.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stainless steel pipe fitting with a plug-in joint, including a connecting pipe, both ends of the connecting pipe are fixedly connected and connected with an annular baffle, and the two annular baffles are connected with a plug-in fitting and an extrusion assembly on the side away from each other, and the two plug-in fittings are respectively located on the inner sides of the two extrusion assemblies.

[0008] Furthermore, the insert tube member includes an extruded tube and an insert tube ring. The cross-section of the extruded tube is a trapezoidal structure. The larger end of the extruded tube is fixedly connected to the annular baffle, and the smaller end faces the end away from the connecting tube. The end of the extruded tube away from the connecting tube is fixedly connected to the insert tube ring and communicated.

[0009] Furthermore, the extrusion assembly includes an extrusion sleeve and a plurality of extrusion blocks, the plurality of extrusion blocks are fixedly connected to the outer edge of the annular baffle away from the connecting tube, the plurality of extrusion blocks are all triangular structures, and the thicker ends of the plurality of extrusion blocks are away from the annular baffle and face away from the extrusion tube, the extrusion sleeve is provided with an annular baffle and abuts against the plurality of extrusion blocks.

[0010] Furthermore, the inner wall of the extrusion sleeve is provided with thread teeth, and a thread groove matching the thread teeth is formed on one side of the plurality of extrusion blocks away from the extrusion tube.

[0011] Furthermore, a threaded connection groove is provided on the outer wall of the annular baffle, and the threaded connection groove is interactively connected with the thread teeth.

[0012] Furthermore, an anti-slip ring is fixedly connected to one end of the extrusion sleeve away from the annular baffle, and a side of the anti-slip ring close to the annular baffle abuts against the annular baffle.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] This kind of stainless steel pipe fitting with a plug-in joint can squeeze the part of the stainless steel pipe fitting inserted into the plug-in fitting onto the plug-in fitting through the mutual cooperation of the extrusion assembly and the plug-in fitting, so that the stainless steel pipe fitting and the plug-in fitting are installed and fixed, avoiding the pipe fitting from falling off and improving the connection firmness of the pipe fitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall appearance connection structure of the utility model;

[0016] Figure 2 Based on Figure 1 Exploded schematic diagram of part of the connection structure;

[0017] Figure 3 Based on Figure 1 Schematic diagram of a cross-sectional view of part of the connection structure.

[0018] In the figure: 1, connecting pipe; 2, annular baffle; 3, extrusion tube; 4, insertion ring; 5, extrusion sleeve; 6, extrusion block; 7, threaded thread; 8, anti-slip ring; 201, threaded connection groove; 601, thread groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figure 1 - Figure 3 A stainless steel pipe fitting with a plug-in joint comprises a connecting pipe 1, both ends of which are fixedly connected and communicated with an annular baffle 2, and the two annular baffles 2 are connected with a plug-in fitting and an extrusion assembly on the side away from each other, and the two plug-in fittings are respectively located on the inner sides of the two extrusion assemblies.

[0021] like Figure 1 - Figure 3 As shown, the stainless steel pipe fitting with a plug-in joint in the utility model is similar to the existing stainless steel pipe fitting with a plug-in joint, such as a stainless steel pipe fitting with a plug-in joint disclosed in the patent with announcement number CN214146907U. The main improvement of the utility model is that it can further improve the connection firmness between the stainless steel pipe fitting and the plug-in joint and reduce the risk of the pipe fitting falling off. Figures 1 to 3 As shown, when the stainless steel pipe fitting with the plug-in joint in the utility model is in use, the two stainless steel pipe fittings to be connected are respectively inserted into the plug-in fittings at both ends of the connecting pipe 1, so that the plug-in fittings are in contact with the inner wall of the stainless steel pipe fitting, and the end of the stainless steel pipe fitting is against the annular baffle 2, and then the extrusion assembly is used to extrude inwardly, so that the end of the stainless steel pipe fitting is squeezed inwardly and finally against the plug-in fitting, so that the stainless steel pipe fitting is firmly connected to the connecting pipe 1, which can further improve the connection firmness of the stainless steel pipe fitting.

[0022] like Figure 1 - Figure 3As shown, the extrusion assembly includes an extrusion sleeve 5 and a plurality of extrusion blocks 6. The plurality of extrusion blocks 6 are fixedly connected to the outer edge of the annular baffle 2 away from the connecting tube 1. The plurality of extrusion blocks 6 are all triangular structures, and the thicker ends of the plurality of extrusion blocks 6 are away from the annular baffle 2 and face in a direction away from the extrusion tube 3. The extrusion sleeve 5 is sleeved on the annular baffle 2 and abuts against the plurality of extrusion blocks 6. When using the extrusion assembly, the extrusion sleeve 5 is moved from the direction of the annular baffle 2 to the direction of the multiple extrusion blocks 6, thereby extruding the outer sides of the multiple extrusion blocks 6, and then the multiple extrusion blocks 6 are extruded inwardly to produce deformation, so that the multiple extrusion blocks 6 gradually move inwardly at one end away from the annular baffle 2, and finally abut against the end of the stainless steel pipe fitting. At this time, the extrusion sleeve 5 can continue to be moved outward, and the multiple extrusion blocks 6 are cooperated to extrude the end of the stainless steel pipe fitting inwardly to produce deformation and abut against the insert pipe fitting, so as to complete the connection and fixation between the stainless steel pipe fitting u connecting pipe 1. The position where the end of the stainless steel pipe fitting is deformed is located on the inner side of the multiple extrusion blocks 6, and is hooked on the inner side by the multiple extrusion blocks 6, thereby preventing the stainless steel pipe fitting from being disconnected from the connecting pipe 1. The connection position between the extrusion block 6 and the annular baffle 2 needs to be made of a material with a rebound effect to ensure that the extrusion block 6 can be bent inwardly, and when disassembled, the extrusion block 6 can also automatically rebound outward.

[0023] like Figure 1 - Figure 3 As shown, the inserting tube part includes an extruded tube 3 and an inserting tube ring 4. The cross section of the extruded tube 3 is a trapezoidal structure. The larger end of the extruded tube 3 is fixedly connected to the annular baffle 2, and the smaller end faces the end away from the connecting tube 1. The end of the extruded tube 3 away from the connecting tube 1 is fixedly connected and communicated with the inserting tube ring 4. When the end of the stainless steel pipe fitting approaches the connecting tube 1, the extruded tube 3 and the inserting tube ring 4 are sleeved inside the pipe fitting. When the extrusion block 6 squeezes the end of the stainless steel pipe fitting inward, the inner wall of the stainless steel pipe fitting is against the outside of the extruded tube 3, and finally stops deforming at the position of the inserting tube ring 4. The end of the stainless steel pipe fitting is reversely hooked on the outside of the extruded tube 3 with multiple extrusion blocks 6, so that when the liquid flows inside the pipe fitting, the large impact force generated will not cause the connecting pipe 1 and the stainless steel pipe fitting to fall off, further improving the connection firmness between the two stainless steel pipe fittings.

[0024] like Figure 1 - Figure 3 As shown, the inner wall of the extrusion sleeve 5 is provided with thread teeth 7, and the side of the plurality of extrusion blocks 6 away from the extrusion tube 3 is provided with thread grooves 601 matching the thread teeth 7. When the extrusion sleeve 5 moves toward the extrusion block 6, the extrusion sleeve 5 is rotated, and the extrusion sleeve 5 gradually squeezes the plurality of extrusion blocks 6 inwards through the thread connection between the thread teeth 7 and the thread grooves 601 on the outer sides of the plurality of extrusion blocks 6, thereby completing the extrusion and tightening operation of the stainless steel pipe fitting.

[0025] like Figure 1 - Figure 3 As shown, the outer wall of the annular baffle 2 is provided with a threaded connection groove 201, and the threaded connection groove 201 is interactively connected with the threaded threads 7. The threaded connection groove 201 is provided on the outer side of the annular baffle 2, so that when the extrusion sleeve 5 moves toward the extrusion block 6, it first connects with the threaded connection groove 201, and then can more easily transition to simultaneously generate threaded connections with multiple extrusion blocks 6, making the operation easier.

[0026] like Figure 1 - Figure 3 As shown, the end of the extrusion sleeve 5 away from the annular baffle 2 is fixedly connected with an anti-slip ring 8, and the side of the anti-slip ring 8 close to the annular baffle 2 abuts against the annular baffle 2. When the extrusion sleeve 5 simultaneously extrudes multiple extrusion blocks 6 inward, the anti-slip ring 8 abuts against the annular baffle 2, thereby preventing the extrusion sleeve 5 from continuing to move outward, thereby preventing the extrusion sleeve 5 from falling off from the end of the connecting pipe 1.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A stainless steel pipe fitting with a plug-in joint, comprising a connecting pipe (1), characterized in that: Both ends of the connecting tube (1) are fixedly connected and communicated with an annular baffle (2); the two annular baffles (2) are connected with a pipe insert and an extrusion assembly on the sides away from each other; the two pipe inserts are respectively located on the inner sides of the two extrusion assemblies; the pipe insert comprises an extrusion tube (3) and an intubation ring (4); the cross section of the extrusion tube (3) is a trapezoidal structure; the larger end of the extrusion tube (3) is fixedly connected to the annular baffle (2); the smaller end faces the end away from the connecting tube (1); the end of the extrusion tube (3) away from the connecting tube (1) is fixedly connected and communicated with the intubation ring (4); the extrusion assembly comprises an extrusion sleeve (5) and a plurality of extrusion blocks (6); the plurality of extrusion blocks (6) are fixedly connected to the outer edge of the annular baffle (2) away from the connecting tube (1); the plurality of extrusion blocks (6) are all triangular structures; the thicker ends of the plurality of extrusion blocks (6) are away from the annular baffle (2) and face the direction away from the extrusion tube (3); the extrusion sleeve (5) is sleeved with the annular baffle (2) and abuts against the plurality of extrusion blocks (6).

2. A stainless steel pipe fitting with a plug-in joint according to claim 1, characterized in that: The inner wall of the extrusion sleeve (5) is provided with thread teeth (7), and a plurality of extrusion blocks (6) are provided with thread grooves (601) matching the thread teeth (7) on one side away from the extrusion tube (3).

3. A stainless steel pipe fitting with a plug-in joint according to claim 2, characterized in that: The outer wall of the annular baffle (2) is provided with a threaded connection groove (201), and the threaded connection groove (201) is interactively connected with the thread teeth (7).

4. A stainless steel pipe fitting with a plug-in joint according to claim 3, characterized in that: An anti-slip ring (8) is fixedly connected to one end of the extrusion sleeve (5) away from the annular baffle (2), and a side of the anti-slip ring (8) close to the annular baffle (2) abuts against the annular baffle (2).

Images