CN217310221U

CN217310221U - Quick-plugging pressure lock

Info

Publication number: CN217310221U
Application number: CN202123416963.4U
Authority: CN
Inventors: 韦晶晶; 韦锡义; 王诚
Original assignee: Ningbo Zhiguang Electromechanical Technology Co ltd
Current assignee: Ningbo Zhiguang Electromechanical Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-30
Anticipated expiration: 2031-12-31

Abstract

A pressure lock for quick plug and pull applied to a human body endoscope tube is formed by matching a male head and a female head, wherein the male head is inserted into the female head for mutual connection when in use, a connecting column is arranged on the inner side of the female head, and a barb structure is arranged on the outer side of the connecting column; the inner side of the female head is provided with a barb structure; the external diameter of female first connecting seat slightly is less than the internal diameter of public head, the spliced pole has elasticity. After the pressure of liquid in the connecting column rises, the connecting column expands, and barb structures on the male head and the female head are mutually occluded to form tight connection. The pressure in the pipe is larger, the connection is tighter, and the male head and the female head are easy to separate after the pressure in the pipe is lost.

Description

Quick-plugging pressure lock

Technical Field

The utility model relates to an improvement to the endoscope connecting pipe in the human body, in particular to a pressure lock of quick plug.

Background

The human body endoscope is connected through a pipeline, and the connecting pipes are spliced in a tight fit mode. However, after the pressure inside the pipeline is increased, the tight-fit gap generates larger pressure, so that the fit part is easy to loosen. For a human body endoscope tube, air pressure or hydraulic fluid pressure exists in the tube in the using process, once the tube is loosened, and particularly if the fallen tube falls into the tube cavity of a human body, serious medical accidents can be caused.

But when the pressure in the tube is not available, the two are required to be loosened quickly, so that the endoscope tube is convenient to replace. The existing quick insertion technology needs the close fit of a male head and a female head, is easy to loosen and has no relation with the pressure in a pipe.

Disclosure of Invention

The utility model discloses the technical problem that will solve is: the quick plugging pressure lock is safe and reliable, can automatically increase the connection strength along with the increase of the pressure of fluid in a pipe, and can be conveniently and quickly released in the absence of pressure.

The utility model provides a technical scheme that above-mentioned problem adopted: the utility model provides a quick plug pressure lock forms by public head and female head cooperation, carries out interconnect, its characterized in that in public head inserts female head during the use: a connecting column is arranged on the inner side of the female head, and a barb structure is arranged on the outer side of the connecting column; the inner side of the female head is provided with a barb structure; the external diameter of female first connecting seat slightly is less than the internal diameter of public head, the spliced pole has elasticity.

The top of female first spliced pole is provided with the conical head, and the inside of public head is provided with the taper hole of cooperation conical head.

The root of spliced pole is provided with first sealing washer.

And a second sealing ring is arranged on the rear side of the conical head at the top of the female connecting column.

The barb structure of public head and female head is the fish scale structure, and the head of fish scale is circular.

And the female head inner wall threads are matched with the threads on the male head outer wall.

The utility model has the advantages that: it is a can the change of root canal internal pressure and change joint strength's quick plug structure, and the connecting seat in the female head can take place slight inflation under the circumstances of there being pressure inside, enlarges intraductal diameter. After intraductal bearing pressure, the barb structure of fish scale shape can contact each other to taking place each other and dying, intraductal pressure is big more, and inseparabler that the barb structure of the connecting seat of public head and female head can combine, and locking dynamics is stronger more.

After the pressure in the pipe disappears, the connecting seat recovers the original size, the barb structures are not contacted with each other, the locking state is relieved, and the pipe is easy to pull out.

Drawings

FIG. 1: the structure diagram of the separated state of the pressure lock.

FIG. 2: the structure diagram of the combination state of the pressure lock (no pressure in the pipe).

FIG. 3: the structure diagram of the combined state of the pressure lock (pressure in the pipe).

FIG. 4: unfolding view of a barb structure of a fish scale structure.

Wherein 1 is public head, 2 is female head, 3 is the spliced pole, 4 are barb structure, 5 are conical head, 6 are first sealing washer, 7 are the second sealing washer.

Detailed Description

The present invention is described in further detail below with reference to the attached drawing figures.

The utility model relates to a be applied to human endoscope tube coupling's quick plug pressure lock, it is formed by public head and female head cooperation, carries out interconnect in public head inserts female head during the use.

A connecting column is arranged on the inner side of the female head, and a barb structure is arranged on the outer side of the connecting column; a barb structure is arranged on the inner side of the female head; the connecting column has elasticity.

The external diameter of female first connecting seat slightly is less than the internal diameter of public head, and barb structure between female first connecting seat and the public head does not take place the contact when female first intraductal no pressure. Because the spliced pole has elasticity, after the liquid in the female head has certain pressure, the spliced pole takes place the inflation, and the barb structure after the inflation can take place the mutual contact to produce the stopping effect.

Furthermore, in order to ensure that the pressure in the barb region is less than the pressure in the female connecting seat pipe, the top of the female connecting column is provided with a conical head, the inside of the male connecting column is provided with a conical hole matched with the conical head, and a second sealing ring is arranged on the rear side of the conical head at the top of the female connecting column. Connect with the conical head and easily aim at to keep apart intraductal and barb region, the regional nearly no liquid pressure of barb ensures that the internal pressure of spliced pole is greater than external pressure, makes the spliced pole take place the inflation, lets the regional interlock each other of barb.

Furthermore, in order to ensure that liquid in the barb region cannot leak out, a first sealing ring is arranged at the root part of the connecting column. Utilize tight fit between the outer wall of public head and the inner wall of female head, perhaps threaded connection's mode compresses tightly first sealing washer, ensures that intraductal liquid does not exosmose. The inner wall of the female head can be additionally provided with a thread and a thread of two circles, and the female head is in threaded fit with the outer wall of the male head to be connected in a preliminary threaded fit manner.

The barb structure has multiple design schemes, as shown in fig. 4, the barb structure of the male head and the barb structure of the female head are fish scale structures, and the heads of the fish scales are circular. The width of the circular arcs of the fish scale structures is larger than the distance between the circular arcs, so that when the fish scale structures are mutually occluded, the fish scale barbs are mutually occluded. The fish scale structure is convenient for the male head and the female head to be separated when being close to each other, and the fish scale barbs are mutually bitten when the fish scale structures are reversely separated.

The barb structure also can be formed by the combination of multilayer round table face, and in order to facilitate the connecting seat inflation, be provided with the fluting on the round table face, it cooperates the public first inner wall of the radius platform structure that corresponds, and mutual locking is died when realizing the separation after the pressure-bearing.

The barb structure is also suitable for the mutual engagement of the chamfer surfaces of the thread lines.

Claims

1. The utility model provides a pressure lock of quick plug, forms by public first and female cooperation, carries out interconnect, its characterized in that in the public first female head of inserting during the use: a connecting column is arranged on the inner side of the female head, and a barb structure is arranged on the outer side of the connecting column; the inner side of the female head is provided with a barb structure; the external diameter of female first connecting seat slightly is less than the internal diameter of public head, the spliced pole has elasticity.

2. The quick-plugging pressure lock according to claim 1, wherein a conical head is arranged at the top of the female head connecting column, and a conical hole matched with the conical head is arranged in the male head.

3. The quick-plugging pressure lock according to claim 1, wherein a first sealing ring is arranged at the root of the connecting column.

4. The quick-plugging pressure lock according to claim 1, wherein a second sealing ring is arranged on the rear side of the conical head at the top of the female connecting column.

5. The quick-plugging pressure lock according to claim 1, wherein the barb structures of the male head and the female head are fish scale structures, and the fish scale heads are round.

6. The quick-connect/disconnect pressure lock according to claim 1, wherein the threads on the inner wall of the female portion are engaged with the threads on the outer wall of the male portion.