WO2018157283A1

WO2018157283A1 - Plug

Info

Publication number: WO2018157283A1
Application number: PCT/CN2017/075176
Authority: WO
Inventors: 刘国仟; 李光显; 吴壬华
Original assignee: 深圳欣锐科技股份有限公司
Priority date: 2017-02-28
Filing date: 2017-02-28
Publication date: 2018-09-07
Also published as: CN108885153A; CN108885153B

Abstract

A plug (100), comprising: a main rod (1), comprising a first end (11) and a second end (2) arranged opposite one another; a pressing device (2) fixed on the first end; a sealing ring (3), slidably sleeved over the outside of the main rod and positioned between the pressing device and the second end; a sleeve (4), slidably sleeved over the outside of the main rod and positioned between the sealing ring and the second end, a positioning end face (41) facing the pressing device being arranged on the outside of the sleeve, the positioning end face abutting the end face of a duct to be sealed when the pressing device and the sealing ring extend into the duct to be sealed; and a push-pull assembly (5) connected between the second end and the sleeve, and used for driving the movement of the second end away from the sleeve, such that the pressing device moves toward the sleeve and tightens the sealing ring, the sealing ring expanding in radial size and coming into tight contact with the duct to be sealed to form a sealing structure. The plug has good sealing effects.

Description

Plug

Technical field

The present application relates to the technical field of a sealability detecting device, and in particular to a plug.

Background technique

In the production process of an electronic assembly product of a metal casing with a water-cooling passage, in order to ensure the sealing of the water passage, it is necessary to perform a gas pressure sealing test on the metal casing with a water passage. There are generally two nozzles on the water channel of the casing, one for the inflow of water and one for the outflow of water. In the airtight test, one nozzle needs to be blocked, and then another nozzle is filled with high pressure gas for the water channel. Air tightness test to detect leaks in the waterway. When plugging a faucet, you need a plug that can be quickly plugged in.

In the prior art, by performing test tooling, a movable rubber cone plug is arranged at a position of the nozzle that needs to be blocked, and the water nozzle that needs to be blocked is blocked to prevent misjudgment caused by air leakage. However, the rubber cone plug and the water nozzle are in contact with the annular line, the contact surface is small, the sealing effect is not good, and the test is misjudged.

Summary of the invention

The technical problem to be solved by the present application is to provide a plug with a good sealing effect.

In order to achieve the above object, the implementation of the present application adopts the following technical solutions:

Provide a plug that includes:

a main pole comprising opposite first and second ends;

a pressing member fixed to the first end;

a sealing ring sleeved on the outer peripheral side of the main rod and located between the pressing member and the second end;

a sleeve sleeved on an outer peripheral side of the main rod and located between the seal ring and the second end, the outer peripheral side of the sleeve has a positioning end surface facing the pressing member, the pressing member and When the sealing ring extends into the passage to be sealed, the positioning end surface abuts the end surface of the passage to be sealed;

a push-pull assembly coupled between the second end and the sleeve for driving the second end to move away from the sleeve to move and press the pressure member toward the sleeve The sealing ring is tightened such that the radial dimension of the sealing ring is increased and is in close contact with the passage to be sealed to form a sealing structure.

Wherein the push-pull assembly comprises:

a handle comprising a rotating end, a grip end and an intermediate section connected between the rotating end and the grip end, the rotating end articulating the second end;

The connector has one end hinged to the intermediate section and the other end hinged to the sleeve.

Wherein the connecting member is hinged to the connecting end of the sleeve near the second end.

Wherein the sleeve comprises a body section and a transition section connecting the body section, the outer peripheral side of the adapter section has a mounting plane, and the connecting member hinges the mounting plane.

The adapter segment is screwed or snapped to the body segment.

Wherein, the sleeve further comprises a pressing section connected to an end of the main body section away from the transition section, and an outer diameter of the pressing section is smaller than an outer diameter of the main body section.

Wherein, the gasket further includes a gasket sleeved on an outer peripheral side of the main rod and located between the pressing member and the sealing ring, and an outer diameter of the gasket is equal to an outer diameter of the pressing portion.

Wherein, the handle has an L shape or a V shape.

Wherein, the outer peripheral side of the main rod has a first limiting end surface and a second limiting end surface disposed opposite to each other between the first end and the second end, and the inner peripheral side of the sleeve has The first latching end surface and the second limiting end surface are disposed between the first latching end surface and the second latching end surface.

Wherein the pressing member is screwed to the first end.

Compared with the prior art, the present application has the following beneficial effects:

Since the plug can change the radial dimension of the sealing ring by the push-pull assembly, the plug can first extend the sealing ring with a smaller radial dimension into the channel to be sealed, and then pass through the The push-pull assembly rapidly increases the radial dimension of the sealing ring, so that the sealing ring is in close contact with the channel to be sealed to form a sealing structure, which is convenient to operate and high in efficiency. At this time, the sealing ring is sealed between the main rod and the passage to be sealed, ensuring good sealing performance between the plug and the passage to be sealed, and when performing air pressure tightness detection, It can cause gas leakage problems.

DRAWINGS

In order to more clearly illustrate the technical solutions of the present application, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application, which are common in the art. For the skilled person, other drawings can be obtained as shown in these drawings without any creative work.

1 is a first state of use of a plug according to an embodiment of the present application;

2 is a schematic view showing a fitting structure of the plug to be sealed of the plug shown in FIG. 1;

Figure 3 is a second view of the use state of the plug shown in Figure 1;

Figure 4 is a schematic view showing the mating structure of the plug to be sealed of the plug shown in Figure 3;

Figure 5 is a schematic exploded view of the plug shown in Figure 1;

Figure 6 is a cross-sectional view taken along line VI-VI of the plug shown in Figure 3.

detailed description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

Referring to FIG. 1 to FIG. 6 together, the embodiment of the present application provides a plug 100 that can be used to seal the channel 300 to be sealed of the housing 200 to be tested for sealing.

The plug 100 includes a main rod 1, a pressing member 2, a sealing ring 3, a sleeve 4, and a push-pull assembly 5. The main rod 1 includes a first end 11 and a second end 12 that are oppositely disposed. The pressing member 2 is fixed to the first end 11. The seal ring 3 is slidably sleeved on the outer peripheral side of the main rod 1 and located between the press member 2 and the second end 12 . The sleeve 4 is sleeved on the outer peripheral side of the main rod 1 and located between the seal ring 3 and the second end 12 . The outer peripheral side of the sleeve 4 has a positioning end surface 41 facing the pressing member 2, and when the pressing member 2 and the sealing ring 3 protrude into the passage 300 to be sealed, the positioning end surface 41 abuts the to-be-sealed End face 301 of channel 300. The push-pull assembly 5 is coupled between the second end 12 and the sleeve 4 for driving the second end 12 to move away from the sleeve 4 to orient the pressing member 2 The sleeve 4 moves and presses the sealing ring 3 such that the radial dimension of the sealing ring 3 increases and is in close contact with the passage 300 to be sealed to form a sealing structure.

In use, as shown in FIG. 1 , the second end 12 is first moved by the push-pull assembly 5 toward the sleeve 4 to make the gap between the pressing member 2 and the sleeve 4 . Larger, the sealing ring 3 is in a relaxed state or slightly compressed, the radial dimension of the sealing ring 3 is small, and the plug 100 is in an unlocked state; then, as shown in FIG. 2, The pressing member 2, the sealing ring 3, a portion of the main rod 1 and a part of the sleeve 4 of the plug 100 in an unlocked state protrude into the passage 300 to be sealed until the positioning end surface 41 abuts Connecting the end surface of the channel to be sealed 300; then, as shown in FIG. 3 and FIG. 4, the second end 12 is moved by the push-pull assembly 5 in a direction away from the sleeve 4, Moving the pressing member 2 toward the sleeve 4 and pressing the sealing ring 3 such that the radial dimension of the sealing ring 3 is increased and in close contact with the passage 300 to be sealed to form a sealing structure. The plug 100 is in a locked state, and the sealing ring 3 of the plug 100 in the locked state is sealed between the main rod 1 and the passage to be sealed 300; the housing 200 is to be sealed. After the detection, the second end 12 is moved by the push-pull assembly 5 toward the sleeve 4 to increase the spacing between the pressing member 2 and the sleeve 4, the sealing The ring 3 returns to a relaxed state or is slightly compressed, the radial dimension of the sealing ring 3 is reduced, the plug 100 is switched from the locked state to the unlocked state, and finally the plug 100 is taken out.

In the present embodiment, since the plug 100 can change the radial dimension of the sealing ring 3 by the push-pull assembly 5, the plug 100 can firstly seal the sealing ring 3 with a small radial dimension. Extending into the channel to be sealed 300, and then rapidly increasing the radial dimension of the sealing ring 3 by the push-pull assembly 5, so that the sealing ring 3 is in close contact with the channel 300 to be sealed to form a sealing structure. Easy to operate and high efficiency. At this time, the sealing ring 3 is sealed between the main rod 1 and the passage to be sealed 300, ensuring good sealing performance between the plug 100 and the passage 300 to be sealed, and performing air pressure sealing. When the test is performed, there is no problem of gas leakage.

It can be understood that, in the embodiment of the present application, the direction along the central axis of the main rod 1 is the axial direction, and the direction perpendicular to the central axis of the main rod 1 is the radial direction. The outer diameter of the pressing member 2, the sealing ring 3 and the sleeve 4 extending into the portion of the passage to be sealed 300 are matched with the inner diameter of the passage 300 to be sealed. The outer diameter of the pressing member 2 and the sleeve 4 extending into the portion of the passage to be sealed 300 may be smaller than or equal to the inner diameter of the passage 300 to be sealed. The outer diameter of the sealing ring 3 may be slightly smaller than or equal to the inner diameter of the passage 300 to be sealed.

Further, the push-pull assembly 5 may be an elastic push-pull assembly, a card stretching assembly or an eccentric assembly.

Referring to FIG. 1 and FIG. 3, FIG. 5 and FIG. 6, as an alternative embodiment, the push-pull assembly 5 includes a handle 51 and a connecting member 52. The handle 51 includes a rotating end 511, a holding end 512 and an intermediate section 513 connected between the rotating end 511 and the holding end 512. The rotating end 511 hinges the first part of the main rod 1 Two ends 12. One end of the connecting member 52 is hinged to the intermediate section 513, and the other end of the connecting member 52 is hinged to the sleeve 4.

In the present embodiment, by rotating the grip end 512 of the handle 51, the intermediate section 513 is relatively The second end 12 rotates to move the sleeve 4 through the connecting member 52 such that the distance between the sleeve 4 and the second end 12 is reduced or increased, thereby causing the pressure The piece 2 cooperates with the sleeve 4 to press the sealing ring 3 or to loosen the sealing ring 3.

Optionally, the rotating end 511 articulates the second end 12 via a pin 71. One end of the connecting member 52 is hinged to the intermediate section 513 by a pin 72, and the other end of the connecting member 52 is hinged to the sleeve 4 by a pin 73.

Optionally, the number of the connecting members 52 is two, and is symmetrically connected between the intermediate portion 513 and the sleeve 4 . The push-pull assembly 5 further includes a limiting strip 53. The two ends of the limiting strip 53 are respectively connected to the two connecting members 52 for achieving a limiting function. Specifically, by rotating the handle 51, the second end 12 is moved away from the sleeve 4, thereby driving the pressing member 2 to cooperate with the sleeve 4 to press the sealing ring. 3. After the handle 51 is rotated to a certain angle, the limiting strip 53 abuts the main rod 1 to define a maximum angle at which the handle 51 rotates, thereby defining the pressing member 2 and the sleeve 4 cooperate with the maximum degree of pressing the sealing ring 3 to avoid damage to the sealing ring 3 due to excessive squeezing, and improve the operational reliability of the plug 100.

Optionally, the handle 51 has an L shape or a V shape.

Optionally, the upper end of the grip end 512 of the handle 51 is wrapped with a non-slip rubber strip, which can increase the friction force and at the same time function as a hand guard.

Referring to FIG. 1 and FIG. 3, FIG. 5 and FIG. 6, as an alternative embodiment, the connecting member 52 is hinged to the connecting end of the sleeve 4 near the second end 12, that is, The push-pull assembly 5 is coupled between the connecting end and the second end 12. Since the distance between the connecting end and the second end 12 is small, the distance required for the connection adjustment of the push-pull assembly 5 is small, which is advantageous for reducing the size of the push-pull assembly 5.

Further, the sleeve 4 includes a main body section 43 and a transfer section 44 connecting the main body section 43. The outer peripheral side of the transfer section 44 has a mounting plane 441, and the connecting member 52 hinges the mounting plane 441. . At this time, the transfer section 44 is located at the connection end. Since the adapter segment 44 has a flat mounting surface 441, the hinged relationship between the connecting member 52 and the mounting plane 441 is stable and reliable, which is beneficial to ensure the operational reliability of the plug 100.

Optionally, the outer peripheral side of the transfer section 44 includes two oppositely disposed mounting planes 441.

Optionally, the adapter segment 44 is screwed or snapped to the body segment 43. The sleeve 4 further includes a sleeve A nut 46 is provided between the transition section 44 and the body section 43. Of course, the adapter segment 44 can also be integrally formed with the body segment 43.

Further, the sleeve 4 further includes a pressing section 45 connected to one end of the main body section 43 away from the transition section 44, and the outer diameter of the pressing section 45 is smaller than the The outer diameter of the body section 43. At this time, the end surface of the main body segment 43 that connects the pressing section 45 forms the positioning end surface 41.

Optionally, the pressing portion 45 is screwed or snapped to the main body segment 43. Of course, the pressing section 45 can also be integrally formed with the main body section 43.

In an embodiment, when the plug 100 is in the locked state, the pressing member 2 is closely connected with the sealing ring 3, even under the pressing action of the pressing member 2, the sealing ring 3 partially encloses the pressing member 2 such that there is no gap between the pressing member 2 and the sealing ring 3, and the pressing member 2 can sufficiently press the sealing ring 3.

In another embodiment, please refer to FIG. 3 to FIG. 6 together, the plug 100 further includes a gasket 6 sleeved on the outer peripheral side of the main rod 1 and located at the pressing member 2 and Between the seal rings 3. The outer diameter of the washer 6 is equal to the outer diameter of the pressing section 45. At this time, the gasket 6 can be engaged with the pressing section 45 under the pressing force of the pressing member 2, thereby more sufficiently pressing both ends of the sealing ring 3. Of course, in other embodiments, the outer diameter of the gasket 6 may also be slightly smaller than the outer diameter of the compression section 45.

Optionally, the radial dimension of the sealing ring 3 in the relaxed state is equal to the outer diameter dimension of the pressing section 45.

Alternatively, the sealing ring 3 may be a closed ring body (for example, an O-shape) or a non-closed ring body (for example, a C-shaped shape).

Referring to FIG. 5 and FIG. 6 together, as an alternative embodiment, the outer peripheral side of the main rod 1 has a first limit disposed between the first end 11 and the second end 12 opposite to each other. The end surface 13 and the second limiting end surface 14 have an inner circumferential side of the sleeve 4 having a first clamping end surface 46 and a second clamping end surface 47, the first limiting end surface 13 and the first The second limiting end surface 14 is located between the first card end surface 46 and the second card end surface 47.

In the embodiment, the first latching end surface 46 can limit the position of the first limiting end surface 13 , and the second latching end surface 47 can limit the position of the second limiting end surface 14 , thereby The sleeve 4 can axially limit the main rod 1 to prevent the main rod 1 from coming off the sleeve 4.

The main rod 1 can be set to a plurality of segments having different outer diameter sizes to obtain the first limit The end face 13 and the second limit end face 14 have, for example, a large outer diameter and a small outer diameter of both ends.

It can be understood that since the main rod 1 is thin and long, the main rod 1 can be arranged as a screwed or snapped plurality of rod segments for the convenience of processing, ensuring the firmness of the main rod 1. At this time, the first limiting end surface 13 and the second limiting end surface 14 can be formed by connecting end faces when the plurality of segment segments of different outer diameters are connected to each other.

The sleeve 4 can be obtained by a plurality of lengths of pipe sections having different inner diameters to obtain the first card end face 46 and the second card end face 47, for example, the intermediate inner diameter is large, and the inner diameters of the two heads are small. When the adapter segment 44 is screwed or snapped to the body segment 43, the adapter segment 44 can partially extend into the interior of the body segment 43 and the adapter segment 44 extends into the body The end face of the segment 43 may form the first card end face 46 or the second card end face 47.

Referring to FIG. 1 to FIG. 4 together, as an alternative embodiment, the pressing member 2 is screwed to the first end 11. The pressing member 2 can be a nut.

In the present embodiment, by adjusting the position of the pressing member 2 on the main rod 1, the range of the distance between the pressing member 2 and the sleeve 4 can be adjusted, thereby adjusting the sealing ring 3 The squeezed distance is used to adjust the magnitude of the change in the radial dimension of the seal ring 3, so that the degree of tightness of the seal 100 for the seal to be sealed is larger, and the plug 100 is added. The range of apertures of the channel to be sealed 300 to be applied.

The embodiments of the present application have been described in detail above, and the principles and implementations of the present application are described in the specific examples. The description of the above embodiments is only used to help understand the method of the present application and its core ideas; A person skilled in the art will have a change in the specific embodiments and the scope of the application according to the idea of the present application. In summary, the content of the present specification should not be construed as limiting the present application.

Claims

A plug, characterized in that it comprises:

a main pole comprising opposite first and second ends;

a pressing member fixed to the first end;

a sealing ring sleeved on the outer peripheral side of the main rod and located between the pressing member and the second end;

a sleeve sleeved on an outer peripheral side of the main rod and located between the seal ring and the second end, the outer peripheral side of the sleeve has a positioning end surface facing the pressing member, the pressing member and When the sealing ring extends into the passage to be sealed, the positioning end surface abuts the end surface of the passage to be sealed;

a push-pull assembly coupled between the second end and the sleeve for driving the second end to move away from the sleeve to move and press the pressure member toward the sleeve The sealing ring is tightened such that the radial dimension of the sealing ring is increased and is in close contact with the passage to be sealed to form a sealing structure.
The plug of claim 1 wherein said push-pull assembly comprises:

a handle comprising a rotating end, a grip end and an intermediate section connected between the rotating end and the grip end, the rotating end articulating the second end;

The connector has one end hinged to the intermediate section and the other end hinged to the sleeve.
The plug of claim 2 wherein said connector is hinged to the connector end of said sleeve adjacent said second end.
A plug according to claim 3, wherein said sleeve includes a body section and a transition section connecting said body section, said outer peripheral side of said adapter section having a mounting plane, said connector hinged The installation plane.
The plug of claim 4 wherein said adapter segment is threaded or snapped onto said body section.
The plug according to claim 4, wherein the sleeve further comprises a pressing section connected to an end of the body section away from the transition section, the compression section The outer diameter is smaller than the outer diameter of the body segment.
The plug according to claim 6, further comprising a gasket sleeved on an outer peripheral side of the main rod and located between the pressing member and the sealing ring, an outer diameter of the gasket It is equal to the outer diameter of the pressing section.
A plug according to claim 2, wherein said handle is L-shaped or V-shaped.
The plug according to claim 1 or 4, wherein the outer peripheral side of the main rod has a first limiting end face and a second portion disposed opposite to the first end and the second end opposite to each other a limiting end surface, the inner circumferential side of the sleeve has a first clamping end surface and a second clamping end surface disposed opposite to each other, and the first limiting end surface and the second limiting end surface are located at the first clamping position Between the end face and the end face of the second card.
The plug of claim 1 wherein said pressure member is threaded to said first end.