CN211344426U - Quick-plugging and plugging device for air inlet pipe - Google Patents

Abstract

The utility model provides an intake pipe is inserted shutoff device soon, including hollow casing, the right-hand member of casing is sealed to be provided with the terminal, the casing internal seal is provided with the neck bush, be provided with the bush spring between neck bush and the terminal, there is first round platform hole along the circumference equipartition on the casing of neck bush left end, there is the second round platform hole along the circumference equipartition on the left casing in first round platform hole, the downthehole steel ball that all is provided with of first round platform hole and second round platform, the casing is arranged in to some of steel ball, the outside cover of casing is equipped with actuating ring, all be provided with on the left actuating ring inner wall in first round platform hole and second round platform hole with steel ball complex annular groove, be provided with actuating spring between actuating ring and the casing. The utility model discloses a flexible of slip control steel ball in the casing actuating ring realizes meeting intake pipe interface's stability, through the cooperation of steel ball, inside lining spring and rectangle sealing washer, guarantees the shutoff leakproofness of intake pipe.

Description

Quick-plugging and plugging device for air inlet pipe

Technical Field

The utility model relates to an engine test technical field especially indicates a shutoff device is inserted soon to intake pipe.

Background

Need carry out the detection of engine gas tightness in engine test system, then need carry out the shutoff to the intake pipe, plugging device will bear certain pressure, is provided with annular protrusion along circumference on the lateral wall of intake pipe. The problems to be solved at present are as follows: 1. how to realize the quick plugging of the air inlet pipe; 2. how to ensure the stable connection of the plugging device and the air inlet pipe; 3. how to ensure the airtight stability of plugging; 4. how to reduce the operation difficulty of workers during testing.

SUMMERY OF THE UTILITY MODEL

The utility model provides a quick plugging device for an air inlet pipe, which is simple to operate and can quickly realize quick plugging of the air inlet pipe of an engine; the expansion of the steel ball in the shell is controlled through the sliding of the actuating ring, so that the air inlet pipe connector is stably connected, and the plugging tightness of the air inlet pipe is ensured through the matching of the steel ball, the lining spring and the rectangular sealing ring.

The technical scheme of the utility model is realized like this: the utility model provides a shutoff device is inserted soon to intake pipe, including hollow casing, the right-hand member of casing is sealed to be provided with the terminal, the sealed neck bush that is provided with in casing, be provided with the bush spring between neck bush and the terminal, along the circumference equipartition first round platform hole has on the casing of neck bush left end, along the circumference equipartition second round platform hole has on the casing of first round platform hole left, first round platform hole and the staggered arrangement of second round platform hole, first round platform hole and second round platform are downthehole all to be provided with the steel ball, the inboard aperture of first round platform hole and second round platform hole is less than the diameter of steel ball, outside aperture is greater than the diameter of steel ball, a part of steel ball is arranged in the casing, the outside cover of casing is equipped with actuating ring, all be provided with the annular recess with steel ball complex on the actuating ring inner wall of first round platform hole and the left actuating ring of second round platform hole.

Furthermore, a first boss is arranged on the shell on the left side of the first circular truncated cone hole along the circumferential direction, a first groove matched with the first boss is formed in the inner wall of the actuating ring, and the actuating spring is arranged between the first boss and the second groove; the outer side wall of the first boss is provided with a second boss, the inner wall of the first groove is provided with a second groove matched with the first boss, and the right side of the inner wall of the second groove is provided with a clamping ring matched with the right end of the second boss.

Furthermore, a third groove is formed in the left end of the terminal, an annular fourth groove is formed in the side wall of the right end of the inner bushing, and the bushing spring is arranged between the third groove and the fourth groove.

Furthermore, an annular third boss is arranged on the left side of the inner wall of the shell, and a fifth groove matched with the third boss is arranged on the side wall of the left end of the inner bushing; an annular rectangular sealing ring is arranged at the left end of the inner bushing, and a first O-shaped ring for sealing is arranged between the fifth groove and the third boss.

Further, the left end of the terminal is arranged in the shell and is in threaded connection with the right end of the shell, and a second O-shaped ring for sealing is arranged between the right end of the shell and the outer side wall of the terminal.

The utility model has the advantages that:

the utility model has simple operation, and can quickly realize the quick plugging of the engine intake pipe; the expansion of the steel ball in the shell is controlled through the sliding of the actuating ring, the steel ball blocks the annular bulge connected with the air inlet pipe connector, the air inlet pipe connector is prevented from moving backwards and separating after being plugged, the air inlet pipe connector is stably connected, meanwhile, the steel ball in the first circular truncated cone hole has right acting force on the air inlet pipe connector, the leftward pressure of the lining in the lining spring and the reverse thrust of the air pressure in the lining sleeve are matched, the rectangular sealing ring is tightly attached to the air inlet pipe connector, and the sealing performance of plugging is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic structural view of an air inlet pipe joint.

The terminal comprises a shell 1, a terminal 2, a second O-shaped ring 3, an inner bushing 4, a third groove 5, a fourth groove 6, a bushing spring 7, a third boss 8, a fifth groove 9, a rectangular sealing ring 10, a first O-shaped ring 11, a first circular platform hole 12, a second circular platform hole 13, a steel ball 14, an actuating ring 15, an annular groove 16, a first boss 17, a first groove 18, an actuating spring 19, a second boss 20, a second groove 21, a clamping ring 22, an air inlet pipe connector 23 and an annular protrusion 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

The terms "left and right" of the present invention are relative to the position relationship shown in fig. 2.

As shown in fig. 1-2, a quick plug plugging device for an air inlet pipe comprises a hollow casing 1, a terminal 2 is hermetically arranged at the right end of the casing 1, the left end of the terminal 2 is arranged in the casing 1 and is in threaded connection with the right end of the casing 1, and a second O-ring 3 for sealing is arranged at the joint of the right end of the casing 1 and the outer side wall of the terminal 2.

An inner bushing 4 is hermetically arranged in the shell 1, a third groove 5 is formed in the left end of the terminal 2, an annular fourth groove 6 is formed in the side wall of the right end of the inner bushing 4, and a bushing spring 7 is arranged between the third groove 5 and the fourth groove 6; an annular third boss 8 is arranged on the left side of the inner wall of the shell 1, and a fifth groove 9 matched with the third boss 8 is arranged on the side wall of the left end of the inner bushing 4. An annular rectangular sealing ring 10 is fixed at the left end of the inner bushing 4, and a first O-shaped ring 11 for sealing is fixed between the fifth groove 9 and the third boss 8.

First circular truncated cone holes 12 are evenly distributed on the shell 1 at the left end of the inner bushing 4 along the circumferential direction, second circular truncated cone holes 13 are evenly distributed on the shell 1 at the left side of the first circular truncated cone holes 12 along the circumferential direction, the first circular truncated cone holes 12 and the second circular truncated cone holes 13 are arranged along the radial direction of the shell 1, the positions of the first circular truncated cone holes 12 and the positions of the second circular truncated cone holes 13 are staggered, steel balls 14 are arranged in the first circular truncated cone holes 12 and the second circular truncated cone holes 13, the inner side aperture of the first circular truncated cone holes 12 and the inner side aperture of the second circular truncated cone holes 13 are smaller than the diameter of the steel balls 14, the outer side aperture is larger than the diameter of the steel balls 14, and a part of the steel balls 14 are arranged in.

An actuating ring 15 is sleeved on the outer side of the shell 1, annular grooves 16 matched with the steel balls 14 are formed in the inner walls of the actuating ring 15 on the left sides of the first circular platform hole 12 and the second circular platform hole 13, a first boss 17 is arranged on the shell 1 on the left side of the first circular platform hole 12 along the circumferential direction, a first groove 18 matched with the first boss 17 is formed in the inner wall of the actuating ring 15, and an actuating spring 19 is arranged between the first boss 17 and a second groove 21; the outer side wall of the first boss 17 is provided with a second boss 20, the inner wall of the first groove 18 is provided with a second groove 21 matched with the first boss 17, and the right side of the inner wall of the second groove 21 is provided with a clamping ring 22 matched with the right end of the second boss 20. The shell 1, the first boss 17, the second boss 20 and the third boss 8 are of an integral structure.

The application method of the embodiment comprises the following steps: as shown in fig. 3, an annular protrusion 24 is circumferentially disposed on an outer side wall of the air inlet pipe interface 23, the actuating ring 15 is held by hand to slide rightwards along the housing 1, the actuating spring 19 is compressed, the left end of the housing 1 is aligned with the air inlet pipe interface 23, the steel ball 14 is retracted into the first circular platform hole 12 or the second circular platform hole 13 along with the entry of the air inlet pipe interface 23 into the housing 1, and a part of the steel ball enters the corresponding annular groove 16, finally, the air inlet pipe interface 23 abuts against the left end of the inner bushing 4, the actuating ring 15 is released, the actuating ring 15 slides leftwards along the housing 1 under the action of the actuating spring 19, so that the steel ball 14 is reset, and a part of the steel ball extends into the housing 1 to abut against an outer wall of the air inlet pipe, wherein the steel ball 14 in the first circular platform hole 12 is clamped to the left side of the annular protrusion 24 of the air inlet pipe interface 23; the air inlet pipe connector 23 pushes the inner bushing 4 rightwards, the inner bushing 4 is pressed leftwards by the bushing spring 7 and the reverse thrust of the air pressure in the inner bushing 4, so that the rectangular sealing ring 10 is tightly attached to the air inlet pipe connector 23, and the sealing performance of plugging is ensured; the collar 22 cooperates with the second boss 20 to limit the distance the actuating ring 15 can slide to the left.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a shutoff device is inserted soon to intake pipe, includes hollow casing (1), its characterized in that: a terminal (2) is arranged at the right end of the shell (1) in a sealing manner, an inner bushing (4) is arranged in the shell (1) in a sealing manner, a bushing spring (7) is arranged between the inner bushing (4) and the terminal (2), first circular platform holes (12) are uniformly distributed on the shell (1) at the left end of the inner bushing (4) along the circumferential direction, second circular platform holes (13) are uniformly distributed on the shell (1) at the left side of the first circular platform holes (12) along the circumferential direction, the first circular platform holes (12) and the second circular platform holes (13) are arranged in a staggered manner, steel balls (14) are arranged in the first circular platform holes (12) and the second circular platform holes (13), the inner side pore diameters of the first circular platform holes (12) and the second circular platform holes (13) are smaller than the diameter of the steel balls (14), the outer side pore diameters of the outer side of the first circular platform holes are larger than the diameter of the steel balls (14), a part of the steel balls (14) are arranged in the, the inner walls of actuating rings (15) on the left sides of the first circular table hole (12) and the second circular table hole (13) are respectively provided with an annular groove (16) matched with the steel ball (14), and an actuating spring (19) is arranged between the actuating rings (15) and the shell (1).

2. The quick-insertion plugging device for the air inlet pipe as claimed in claim 1, wherein: a first boss (17) is arranged on the shell (1) on the left side of the first circular table hole (12) along the circumferential direction, a first groove (18) matched with the first boss (17) is arranged on the inner wall of the actuating ring (15), and an actuating spring (19) is arranged between the first boss (17) and the second groove (21); the outer side wall of the first boss (17) is provided with a second boss (20), the inner wall of the first groove (18) is provided with a second groove (21) matched with the first boss (17), and the right side of the inner wall of the second groove (21) is provided with a clamping ring (22) matched with the right end of the second boss (20).

3. The quick-insertion plugging device for the air inlet pipe as claimed in claim 1, wherein: the left end of the terminal (2) is provided with a third groove (5), the side wall of the right end of the inner bushing (4) is provided with an annular fourth groove (6), and the bushing spring (7) is arranged between the third groove (5) and the fourth groove (6).

4. The quick-insertion plugging device for the air inlet pipe as claimed in any one of claims 1 to 3, wherein: an annular third boss (8) is arranged on the left side of the inner wall of the shell (1), and a fifth groove (9) matched with the third boss (8) is arranged on the side wall of the left end of the inner bushing (4); an annular rectangular sealing ring (10) is arranged at the left end of the inner bushing (4), and a first O-shaped ring (11) for sealing is arranged between the fifth groove (9) and the third boss (8).

5. The quick-insertion plugging device for the air inlet pipe as claimed in claim 1, wherein: the left end of the terminal (2) is arranged in the shell (1) and is connected with the right end of the shell (1) in a threaded mode, and a second O-shaped ring (3) used for sealing is arranged between the right end of the shell (1) and the outer side wall of the terminal (2).

Images