CN218883304U - Threaded quick connecting joint - Google Patents

Abstract

The utility model provides a threaded quick connection joint, which comprises a main body, an inner core and a sliding sleeve, wherein the inner core is arranged in the main body, the sliding sleeve is arranged on the main body, the sliding sleeve can slide between an opening position and a locking position on the main body, and when the sliding sleeve is positioned at the opening position, the main body can radially expand or contract relative to the inner core; when the sliding sleeve is located at the locking position, the main body and the inner core keep relatively static. The utility model discloses a set up the sliding sleeve in the main part, set up the inner core in the main part, the sliding sleeve slides between open position and latched position to make the main part use the inner core to carry out radial expansion or shrink as the fulcrum, realize the high-speed joint of screw thread port, promoted the installation effectiveness, avoided the wearing and tearing of screw thread.

Description

Threaded quick connecting joint

Technical Field

The utility model belongs to the mechanical connection field, concretely relates to screw thread quick connect joint.

Background

Threaded connections are a common connection, and are made primarily by engagement between male and female threads. The threaded connection has the advantages of simple structure, convenience in disassembly and the like, and has certain defects. For example, when a product with a threaded port is subjected to a pressure test, the test product needs to be in threaded connection with a test bench, so that on one hand, the threads of the port of the test product are abraded, and the connection is not firm; on the other hand, the installation efficiency is influenced by time and labor waste.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a screw thread quick connect joint has solved the screw wear that proposes in the background art, connects insecure and threaded connection wastes time and energy, the technical problem of inefficiency.

In order to achieve the above object, the utility model provides a following technical scheme: a threaded quick connection joint comprises a main body, an inner core and a sliding sleeve, wherein the inner core is arranged in the main body, the sliding sleeve is arranged on the main body, the sliding sleeve can slide between an opening position and a locking position on the main body, and when the sliding sleeve is positioned at the opening position, the main body can radially expand or contract relative to the inner core; when the sliding sleeve is located at the locking position, the main body and the inner core keep relatively static.

Preferably, a C-shaped retainer ring is disposed on the body, the C-shaped retainer ring being adjacent to the open position.

Preferably, an annular spring is provided on the body adjacent the locking position.

Preferably, a plunger is arranged on the sliding sleeve, and a ball is arranged at the lower end of the plunger.

Preferably, the main body is axially provided with a limiting groove, the inner end of the sliding sleeve is provided with a limiting bulge, and the limiting bulge is positioned in the limiting groove.

Preferably, the front end of the inner core is provided with an O-shaped ring.

Compared with the prior art, the beneficial effects of the utility model are that: the sliding sleeve is arranged on the main body, the inner core is arranged in the main body, and the sliding sleeve slides between the opening position and the locking position, so that the main body radially expands or contracts by taking the inner core as a fulcrum, the quick connection of the threaded port is realized, the installation efficiency is improved, and the abrasion of threads is avoided.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

fig. 2 is a cross-sectional axial view of the present invention;

FIG. 3 is a half sectional view of the present invention;

FIG. 4 is a schematic structural view of the main body of the present invention after being equally divided by 1/4, and shows the state after the cylindrical pin is inserted;

fig. 5 is a schematic structural view of the inner core of the present invention;

FIG. 6 is a schematic view of the present invention before connection, when the sliding sleeve is in the open position;

fig. 7 is a schematic view of the main body of the present invention when it is opened;

fig. 8 is a schematic view of the present invention when connecting a threaded joint;

fig. 9 is a schematic view of the utility model after contraction;

fig. 10 is a schematic view of the present invention after the connection is completed, and the sliding sleeve is located at the locking position;

in the figure: 1. a main body; 2. an inner core; 3. a C-shaped retainer ring; 4. a sliding sleeve; 5. a plunger; 6. a cylindrical pin; 7. an annular spring; 8. an O-shaped ring; 9. a threaded joint; 10. a first annular groove; 11. a second annular groove; 12. a third annular groove; 13. a pin hole; 14. a front aperture; 15. a transition hole; 16. a mesopore; 17. a rear aperture; 18. a limiting groove; 19. a taper hole; 20. an annular dovetail groove; 21. bulging; 22. an annular boss; 23. positioning the front section; 24. a fluid channel; 25. connecting the rear section; 40. a limiting bulge; 100. a Y-shaped gap; 101. clamping the front section; 102. a handheld rear section; 103. an open position; 104. a locked position.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-5, the threaded quick connection joint of the present embodiment includes a main body 1, an inner core 2, and a sliding sleeve 4. Main part 1 is cylindricly, and including radial slightly little tight anterior segment 101 of clamp and radial slightly big handheld back end 102, the entrance that presss from both sides tight anterior segment 101 is processed there is the internal thread, and the internal thread adjoins front hole 14, and front hole 14 connects the less transition hole 15 in aperture backward, and transition hole 15 connects the mesopore 16 that aperture becomes big, and mesopore 16 connects the bigger back hole 17 in aperture backward, and the end-to-end connection taper hole 19 of back hole 17. The main body 1 is made of copper materials, and is cut into 4 equal parts by lines after the manufacture is finished.

The inner core 2 is cylindrical and comprises a positioning front section 23 and a connecting rear section 25, and a through fluid channel 24 is arranged in the inner core. The end part of the positioning front section 23 is provided with a bulge 21, the middle part is provided with an annular boss 22, and the end part of the connecting rear section 25 is connected with the test equipment. An annular dovetail groove 20 is arranged on the front end face of the bulge 21, and an O-shaped ring 8 is arranged in the annular dovetail groove 20.

The inner core 2 is arranged in the main body 1, specifically, a bulge 21 on the inner core 2 is arranged in the front hole 14 of the main body 1, and a shaft shoulder formed by the front hole 14 and the transition hole 15 is abutted on the rear end surface of the bulge 21. An annular boss 22 is located in the central bore 16, the annular boss 22 bearing against a shoulder formed by the transition bore 15 and the central bore 16. The main body 1 is further provided with a pin hole 13, and a cylindrical pin 6 in interference fit with the pin hole 13 is arranged in the pin hole 13. When the body 1 is mated with the inner core 2, the cylindrical pin 6 is located just behind the annular boss 22, thereby limiting axial movement of the body 1.

The sliding sleeve 4 is sleeved on the front end of the main body 1 and can axially slide on the front end of the main body 1. The front clamping section 101 of the main body 1 is provided with an opening position 103 and a locking position 104, wherein the opening position 103 is approximately located at the joint of the front clamping section 101 and the rear handheld section 102, and the locking position 104 is approximately located on the outer circumference of the front hole 14. When the sliding sleeve 4 slides to the open position 103, the handheld rear section 102 of the main body 1 is gripped, and due to the rear hole 17 and the tapered hole 19 in the main body 1, a certain radial moving space exists in the handheld rear section 102 of the main body 1, and the handheld rear section can be radially folded relative to the connecting rear section 25 of the inner core 2. The body 1 is under the action of the annular boss 22, and the clamping front section 101 of the body 1 is expanded radially outwards by utilizing the lever principle. In order to facilitate the folding of the handheld rear section 102 of the main body 1, the handheld rear section 102 is provided with a Y-shaped gap 100, and the Y-shaped gap 100 increases the activity space of the handheld rear section 102, which is more beneficial to the radial folding of the handheld rear section 102.

When the sliding sleeve 4 is slid to the locking position 104, the sliding sleeve 4 limits the radial movement of the clamping front section 101, so that the clamping front section 101 firmly engages the threaded joint 9 to be tested. The sliding sleeve 4 may also be provided with a plunger 5, and when the sliding sleeve 4 slides to the locking position 104, the ball 51 on the plunger 5 engages with the second annular groove 11 on the clamping front section 101 to prevent the sliding sleeve 4 from sliding axially. The clamping front section 101 can be further provided with a limiting groove 18 in the axial direction, the inner end of the sliding sleeve 4 is provided with a limiting protrusion 40 matched with the limiting groove 18, the limiting groove 18 further limits the axial movement of the sliding sleeve 4, and the sliding sleeve 4 is prevented from rotating.

The body 1 may also be provided with a C-shaped retainer 3,C, a type retainer 3 being positioned in the third annular groove 12 adjacent the open position 103, the C-shaped retainer 3 limiting radial movement of the body 1. Further, an annular spring 7 may be provided on the main body 1, the annular spring 7 being disposed in the first annular groove 10 adjacent to the locking position 104, the annular spring 7 assisting the front end of the main body 1 to be gathered toward the center.

The utility model discloses during the equipment, regard as the installation benchmark with inner core 2, install O type circle 8 earlier in the annular dovetail 20 of inner core 2, insert cylindric lock 6 respectively in the pinhole 13 of the main part 1 of equal portion, realize connecting through interference fit. Then, the equal parts of the main body 1 are orderly arranged on the inner core 2, and the cylindrical pin 6 and the middle hole 16 form a groove to be matched with the annular boss 22 on the inner core 2, so that the axial movement of the main body 1 is limited. The C-shaped retainer ring 3 is placed in the third annular groove 12 to limit the radial movement of the main body 1, then the sliding sleeve 4 is sleeved at the front end of the main body 1, the plunger 5 is installed in a threaded hole in the sliding sleeve, and finally the annular spring 7 is placed in the first annular groove 10 to complete installation.

The threaded quick connection joint of the embodiment has the following specific use process: referring specifically to fig. 6-10, the sliding sleeve 4 is first slid to the open position 103, the rear hand-held segment 102 of the body 1 is pinched, and a slight radial force is applied to rotate the body 1 along the annular boss 22 on the core 2. Due to the lever principle, the clamping front section 101 of the body 1 flares radially outwards. The measured threaded joint 9 is placed on the internal thread at the front end of the main body 1, the handheld rear section 102 is loosened, and the internal thread at the front end of the main body 1 is closed towards the center under the action of the elastic force of the annular spring 7. In order to avoid the phenomenon that the threads are not meshed in place, the main body 1 is slightly rotated, the internal threads on the main body 1 are fully meshed with the external threads of the tested threaded connector 9, and the front end face of the tested threaded connector 9 can press the O-shaped ring 8 to form sealing. Then the sliding sleeve 4 is slid to the locking position 104, and the ball 50 at the bottom of the plunger 5 on the sliding sleeve 4 is matched with the second annular groove 11, so that the sliding sleeve 4 is prevented from freely sliding in the testing process. And opening the testing equipment, and introducing a high-pressure medium for pressure testing. After the test is finished, the test equipment is closed, the sliding sleeve 4 is slid to the opening position 103, the handheld rear section 102 of the main body 1 is pinched, the clamping front section 101 of the main body 1 is opened, the tested screwed joint 9 is taken down, and the steps are repeated to perform the next test process.

The foregoing has outlined the principles and advantages of the present invention so that those skilled in the art may better understand the present invention without further elaboration. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some or all of the technical features by reading the present specification. Any obvious replacement is within the scope of the present invention without departing from the concept of the present invention.

Claims (6)

1. The threaded quick connection joint is characterized by comprising a main body (1), an inner core (2) and a sliding sleeve (4), wherein the inner core (2) is arranged in the main body (1), the sliding sleeve (4) is arranged on the main body (1), the sliding sleeve (4) can slide between an opening position (103) and a locking position (104) on the main body (1), and when the sliding sleeve (4) is located at the opening position (103), the main body (1) can radially expand or contract relative to the inner core (2); when the sliding sleeve (4) is located at the locking position (104), the main body (1) and the inner core (2) are kept relatively static.

2. A threaded quick-connect coupling according to claim 1, characterized in that said body (1) is provided with a C-shaped collar (3), said C-shaped collar (3) being adjacent to said open position (103).

3. A threaded quick-connect coupling according to claim 2, characterized in that said body (1) is provided with an annular spring (7), said annular spring (7) being adjacent to said locking position (104).

4. A threaded quick-connect coupling according to claim 3, characterized in that said sliding sleeve (4) is provided with a plunger (5), the lower end of said plunger (5) being provided with a ball (51).

5. A threaded quick-connect coupling according to claim 4, characterized in that a limit groove (18) is axially provided on the main body (1), a limit projection (40) is provided at the inner end of the sliding sleeve (4), and the limit projection (40) is located in the limit groove (18).

6. A threaded quick connection according to any one of claims 1 to 5, characterized in that the front end of the core (2) is provided with an O-ring (8).

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