Pluggable quick connector

Abstract

The utility model discloses a plug type quick connector, which relates to the technical field of quick connectors and comprises a mother pipe, a sliding sleeve and a connecting pipe. In the utility model, the sliding sleeve is rotated until the inner surface wall of the vertical end of the sliding sleeve abuts against the open end of the mother pipe, in the process, the inclined surface of the clamping block is in sliding fit with the inclined end on the lining ring, and the clamping block drives the sliding block to slide along the sliding chute and stretches the spring until the arc-shaped ends of the multiple groups of clamping blocks abut against the outer surface wall of the connecting pipe; at the moment, the straight pipe is fixed through the multiple sets of clamping blocks, so that connection between the connecting pipe and the mother pipe is achieved, the connecting pipe can be separated only by rotating the threaded sleeve in the corresponding period subsequently, the screwing state of the threaded sleeve and the mother pipe can be kept, and therefore the connecting pipe can be conveniently and rapidly separated while auxiliary machining of the connecting pipe is not needed. And the connecting pipe and the mother pipe are convenient to disassemble and assemble, so that the use convenience of the plug-pull type quick connector is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of quick connectors, in particular to a plug-in type quick connector. Background Art

[0002] At present, in industrial automation, aviation, railway, transportation, electricity, machinery manufacturing, and medical equipment systems, joints are indispensable for pipe connections of fluid media. Since the commonly used connection form generally adopts ordinary threaded joints, they are large in size and easily restricted by assembly space, have poor air tightness, are prone to leakage, and are troublesome to assemble and disassemble.

[0003] For example, a new type of quick-disconnect connector provided in patent application number CN202020680453.4 includes: a mother tube, one end of which is connected to the valve body, and the side wall of the mother tube is provided with a plurality of elastic limit members; a sliding sleeve, which is sleeved on the mother tube and can slide relative to the mother tube, and an inner ring is connected to the sliding sleeve, and the inner ring has an annular inclined surface that cooperates with the elastic limit member; a connecting tube, which is inserted into the inner ring and extends into the mother tube, the connecting tube can slide relative to the inner ring, and the outer peripheral wall of the connecting tube has an annular bevel groove, and the annular bevel groove is used to cooperate with the elastic limit member.

[0004] Based on the above search, combined with the prior art, it is found that the prior art quick-disconnect connector similar to the above disclosure uses the pre-tightening force of the spring so that the elastic limiter can always clamp the sliding sleeve and the connecting pipe. In the specific implementation process, on the one hand, an annular bevel groove needs to be opened on the external connecting pipe, which reduces the versatility of the plug-in quick connector. On the other hand, the sliding sleeve often needs to be completely rotated off the mother pipe to separate the constraint assembly from the connecting pipe, and the overall operation is inconvenient. Therefore, a plug-in quick connector is proposed to improve the above problems. Utility Model Content

[0005] The purpose of the present application is to provide a plug-in quick connector to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a plug-in quick connector, comprising a mother tube, a sliding sleeve and a connecting tube, the inner surface wall of the mother tube is fixedly connected with an inner lining ring, the inner lining ring comprises an inclined end, the open end of the connecting tube abuts against the outer surface wall of the vertical end of the inner lining ring, the inner surface wall of the horizontal end of the sliding sleeve is screwed together with the outer surface wall of the mother tube, and a positioning component for positioning the connecting tube is arranged between the inclined end and the inner surface wall of the vertical end of the sliding sleeve.

[0007] As a further supplement to the present solution, the positioning assembly includes multiple groups of clamping blocks slidably connected to the outer wall of the inclined end, the outer walls of the arc-shaped ends of the multiple groups of clamping blocks are abutted against the outer wall of the connecting pipe, and elastic parts are arranged between the outer walls of the multiple groups of clamping blocks and the vertical end of the sliding sleeve.

[0008] As a further supplement to this solution, the elastic part includes a slider, which is fixedly connected to the outer wall of the clamping block. The outer wall of the slider is slidably connected to the inner wall of the vertical end of the sliding sleeve through a sliding groove, and a spring is fixedly connected between the slider and the inside of the sliding groove.

[0009] As a further supplement to the present solution, the inner lining ring is hollowed out, and a sealing gasket is fixedly connected to the outer wall of the vertical end of the inner lining ring, and the sealing gasket abuts against the open end of the connecting pipe.

[0010] As a further supplement to the present solution, an outer ring is fixedly provided on the outer surface wall of the connecting pipe, and rubber pads are fixedly connected to the outer surfaces of the arc-shaped ends of the plurality of groups of clamping blocks, and the rubber pads are in contact with the outer surface wall of the outer ring.

[0011] As a further supplement to the present solution, the inner surface wall of the outer ring abuts against the outer surface wall of the connecting pipe, and a locking rod is screwedly connected to the inner surface wall of the outer ring, and the open end of the locking rod abuts against the outer surface wall of the connecting pipe.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] 1. In the utility model, the sleeve is first screwed onto the outside of the mother tube, and then the connecting tube is passed through the sleeve and abutted against the sealing gasket on the inner liner ring. Then, the position of the connecting tube is maintained, and the sleeve is continuously rotated until the inner surface wall of its vertical end abuts against the open end of the mother tube. In this process, the inclined surface of the clamping block slides with the inclined end on the inner liner ring, and the clamping block drives the slider to slide along the slide groove and stretch the spring until the arc-shaped ends of multiple groups of clamping blocks abut against the outer surface wall of the connecting tube. At this time, multiple groups of clamping blocks realize the fixation of the straight tube, thereby realizing the connection between the connecting tube and the mother tube. Subsequently, only the corresponding periodic rotation of the screw sleeve is required to realize the separation of the connecting tube, and the screw sleeve and the mother tube can be maintained in the screwed state, thereby ensuring the convenience of disassembly and assembly of the connecting tube and the mother tube without the need for auxiliary processing of the connecting tube, thereby improving the convenience of using the plug-in quick connector.

[0014] 2. In the utility model, before the connecting pipe is connected, the outer ring can be sleeved into the designated area of ​​the connecting pipe, and the locking rod is rotated to make its open end abut against the outer wall of the connecting pipe, so that the outer ring and the connecting pipe are fixed by friction. In this way, no auxiliary processing of the connecting pipe is required, and the rough texture of the outer wall of the outer ring and the rubber pad of the arc-shaped end of the clamping block can ensure the stability of the clamping block and the connecting pipe, thereby improving the stability of the plug-in quick connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 Schematic diagram of the three-dimensional structure in this embodiment;

[0017] Figure 2 Schematic diagram of the liner ring structure in this embodiment;

[0018] Figure 3 Schematic diagram of the spring structure in this embodiment;

[0019] Figure 4 Schematic diagram of the outer ring structure in this embodiment.

[0020] In the figure: 1, mother pipe; 2, sliding sleeve; 3, connecting pipe; 4, clamping block; 5, sealing gasket; 6, inner lining ring; 7, outer ring; 8, spring; 9, slide groove; 10, slider; 11, rubber pad; 12, locking rod; 13, inclined end. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example: Reference Figure 1-4 A plug-in quick connector is shown, comprising a mother pipe 1, a sleeve 2 and a connecting pipe 3, wherein an inner liner ring 6 is fixedly connected to the inner surface wall of the mother pipe 1, and the inner liner ring 6 comprises an inclined end 13, the open end of the connecting pipe 3 abuts against the outer surface wall of the vertical end of the inner liner ring 6, the inner surface wall of the horizontal end of the sleeve 2 is screwed and connected to the outer surface wall of the mother pipe 1, and a positioning component for positioning the connecting pipe 3 is arranged between the inclined end 13 and the inner surface wall of the vertical end of the sleeve 2;

[0023] After the cam 1 is in the state of being pressed down, the cam 1 is in the state of being pressed down, and the cam 1 is in the state of being pressed down, and the cam 1 is in the state of being pressed down, and the cam 1 is in the state of being pressed down, and the cam 1 is in the state of being pressed down, and the cam 1 is in the state of being pressed down, and the cam 1 is in the state of being pressed down, and the cam 1 is in the state of being pressed down, and the cam 1 is in the state of being pressed down, and the cam 1 is in the state of being pressed down, and the cam 1 is in the state of being pressed down, and the cam 1 is in the state of being pressed down, and the cam 1 is in the state of being pressed down, and the cam 1 is in the state of being pressed down, and the cam 1 is in the state of being pressed down, and the cam 1 is in the state of being pressed down, and the cam 1 is in the state of being pressed down,

[0024] The positioning assembly includes multiple groups of clamping blocks 4 that are slidably connected to the outer wall of the inclined end 13, the outer walls of the arc-shaped ends of the multiple groups of clamping blocks 4 are all in contact with the outer wall of the connecting pipe 3, and an elastic part is arranged between the outer walls of the multiple groups of clamping blocks 4 and the vertical end of the sliding sleeve 2, the elastic part includes a slider 10, the slider 10 is fixedly connected to the outer wall of the clamping block 4, the outer wall of the slider 10 is slidably connected to the inner wall of the vertical end of the sliding sleeve 2 through the sliding groove 9, and a spring 8 is fixedly connected between the slider 10 and the inside of the sliding groove 9, the inclined surface of the clamping block 4 is slidably matched with the inclined end 13 on the inner lining ring 6, the clamping block 4 drives the slider 10 to slide along the sliding groove 9 and stretch the spring 8 until the arc-shaped ends of the multiple groups of clamping blocks 4 are all in contact with the outer wall of the connecting pipe 3.

[0025] The inner liner ring 6 is hollowed out to save energy and reduce weight, and a sealing gasket 5 is fixedly connected to the outer wall of the vertical end of the inner liner ring 6, which abuts against the open end of the connecting pipe 3 to ensure the airtightness between the connecting pipe 3 and the mother pipe 1.

[0026] An outer ring 7 is fixedly provided on the outer wall of the connecting tube 3, and rubber pads 11 are fixedly connected to the outer walls of the arc-shaped ends of multiple groups of clamping blocks 4, and the rubber pads 11 abut against the outer wall of the outer ring 7, and the inner wall of the outer ring 7 abuts against the outer wall of the connecting tube 3. A locking rod 12 is screwed and connected to the inner wall of the outer ring 7, and the open end of the locking rod 12 abuts against the outer wall of the connecting tube 3. Before the connecting tube 3 is connected, the outer ring 7 can be sleeved into a specified area of ​​the connecting tube 3, and the locking rod 12 is rotated to make its open end abut against the outer wall of the connecting tube 3, so that the outer ring 7 and the connecting tube 3 are fixed by friction, thereby eliminating the need for auxiliary processing of the connecting tube 3, and the rough texture of the outer wall of the outer ring 7 and the rubber pad 11 at the arc-shaped end of the clamping block 4 can ensure the stability of the cooperation between the clamping block 4 and the connecting tube 3, thereby improving the stability of the plug-in quick connector.

[0027] The working principle of the utility model is as follows: first, partially screw the sleeve 2 onto the outside of the mother pipe 1, then pass the connecting pipe 3 through the sleeve 2 and abut against the sealing gasket 5 on the inner lining ring 6, then maintain the position of the connecting pipe 3, and continue to rotate the sleeve 2 until the inner surface wall of its vertical end abuts against the open end of the mother pipe 1. During this process, the inclined surface of the clamping block 4 slides with the inclined end 13 on the inner lining ring 6, and the clamping block 4 drives the slider 10 to slide along the slide groove 9 and stretch the spring 8 until the arc-shaped ends of multiple groups of clamping blocks 4 abut against the outer surface wall of the connecting pipe 3. At this time, multiple groups of clamping blocks 4 realize the fixation of the connecting pipe 3, thereby realizing the connection between the connecting pipe 3 and the mother pipe 1. Subsequently, only the sleeve 2 needs to be rotated in a corresponding period to realize the separation of the connecting pipe 3. The outer ring 7 can be sleeved on the designated area of ​​the connecting tube 3 before the connecting tube 3 is connected, and the locking rod 12 is rotated so that its open end abuts against the outer wall of the connecting tube 3, so that the outer ring 7 and the connecting tube 3 are fixed by friction, so that the connecting tube 3 does not need to be processed auxiliaryly, and the matching of the clamping block 4 and the connecting tube 3 can be ensured to be stable through the rough texture of the outer wall of the outer ring 7 and the rubber pad 11 at the arc-shaped end of the clamping block 4, thereby improving the stability of the plug-in quick connector.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A plug-in quick connector, comprising a mother pipe (1), a sliding sleeve (2) and a connecting pipe (3), characterized in that: The inner wall of the mother pipe (1) is fixedly connected to an inner lining ring (6), and the inner lining ring (6) includes an inclined end (13). The open end of the connecting pipe (3) abuts against the outer wall of the vertical end of the inner lining ring (6). The inner wall of the horizontal end of the sliding sleeve (2) is screwed together with the outer wall of the mother pipe (1). A positioning component for positioning the connecting pipe (3) is provided between the inclined end (13) and the inner wall of the vertical end of the sliding sleeve (2).

2. A plug-in quick connector according to claim 1, characterized in that: The positioning assembly comprises a plurality of groups of clamping blocks (4) slidably connected to the outer wall of the inclined end (13); the outer walls of the arc-shaped ends of the plurality of groups of clamping blocks (4) are in contact with the outer wall of the connecting pipe (3); and elastic parts are arranged between the outer walls of the plurality of groups of clamping blocks (4) and the vertical end of the sliding sleeve (2).

3. A plug-in quick connector according to claim 2, characterized in that: The elastic part comprises a slider (10), the slider (10) is fixedly connected to the outer wall of the clamping block (4), the outer wall of the slider (10) is slidably connected to the inner wall of the vertical end of the sliding sleeve (2) through a sliding groove (9), and a spring (8) is fixedly connected between the slider (10) and the inside of the sliding groove (9).

4. The plug-in quick connector according to claim 3, characterized in that: The inner lining ring (6) is hollowed out, and a sealing gasket (5) is fixedly connected to the outer wall of the vertical end of the inner lining ring (6), and the sealing gasket (5) is in contact with the open end of the connecting pipe (3).

5. The plug-in quick connector according to claim 4, characterized in that: An outer ring (7) is fixedly provided on the outer wall of the connecting pipe (3), and rubber pads (11) are fixedly connected to the outer walls of the arc-shaped ends of the plurality of groups of clamping blocks (4), and the rubber pads (11) are in contact with the outer wall of the outer ring (7).

6. The plug-in quick connector according to claim 5, characterized in that: The inner surface wall of the outer ring (7) abuts against the outer surface wall of the connecting pipe (3); the inner surface wall of the outer ring (7) is screwed with a locking rod (12); the open end of the locking rod (12) abuts against the outer surface wall of the connecting pipe (3).

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