CN109276273A - A sealing device for ultrasonic sound head and pressure releasing device thereof - Google Patents

Abstract

The invention discloses a pressure release device, comprising a bag-shaped body made of soft material for placing a sealing medium, a connecting pipe is sealed and connected to the bag-shaped body, a locking device is arranged on the connecting pipe, and the locking device is used for Connect the pressure relief device to the sealing device of the ultrasonic sound head. When in use, it is connected with the sealing device of the ultrasonic sound head through a pipeline. When the temperature rises, the volume expansion pressure of the sealing medium in the sealing device increases, and part of the sealing medium enters the bladder through the pipeline, and the bladder increases with the pressure. When the temperature decreases, the volume of the sealing medium in the sealing device shrinks. Under the action of the external atmospheric pressure, part of the sealing medium flows back to the sealing device, and the outer surface of the capsule gradually closes. The pressure is released so that the sealing device is not destroyed by the external atmospheric pressure due to the reduction of the internal pressure. The present invention also provides a sealing device for an ultrasonic sound head using the above-mentioned pressure releasing device.

Description

A sealing device for ultrasonic sound head and pressure releasing device thereof

technical field

The present invention relates to the technical field of decompression devices, in particular to a sealing device for an ultrasonic sound head and a pressure releasing device thereof.

Background technique

The probes used in medical equipment are very precise, and the ultrasound head needs to be placed in a sealed environment, such as intracavity 4D probes, ultrasound heads of abdominal 4D probes, etc.

When the intracavity 4D probe and the ultrasonic sound head of the abdominal 4D probe are placed in a closed liquid structure device, during use and transportation, the existing sealing device is not sensitive to pressure changes or is only sensitive to internal pressure or external pressure. One is sensitive, then due to changes in ambient temperature, the liquid in the sealing device will expand and contract, causing changes in internal and external pressures, resulting in damage to the sealing device.

Therefore, how to provide a pressure release device so that the device is not damaged by the external atmospheric pressure due to the change of the internal pressure is a technical problem to be solved urgently by those skilled in the art.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to provide a pressure release device, so as to realize that the equipment is not damaged by the external atmospheric pressure due to the change of the internal pressure. Another object of the present invention is to provide a sealing device for an ultrasonic sound head using the above-mentioned pressure releasing device.

In order to achieve the above object, the present invention provides the following technical solutions:

A pressure release device, used for a sealing device of an ultrasonic sound head, comprises a bag-shaped body made of a soft material for placing a sealing medium, the bag-shaped body is sealed and connected with a connecting pipe, and the connecting pipe is provided with There is a locking device for sealingly connecting the pressure releasing device with the sealing device of the ultrasonic sound head.

Preferably, the above-mentioned soft material is rubber.

Preferably, the length of the capsule body is greater than its own width, and the outer surface of the capsule body in the longitudinal direction is concave.

Preferably, the outer surface of the sac-shaped body includes a plurality of face bodies, wherein one of the face bodies or a plurality of the face bodies is concave.

Preferably, the above-mentioned connecting pipe is a soft pipe, and the locking device is a cable tie, or, the connecting pipe is a hard pipe, and the locking device is a thread locking.

Preferably, the above-mentioned connecting pipes are two and are located at both ends of the bladder in the length direction, one of the connecting pipes is used for connecting with the joint of the sealing device, and the other connecting pipes is used for connecting the The gas inside the bladder is released and sealed by itself.

Preferably, the above-mentioned connecting pipe and the bag-shaped body are integrally formed.

The present invention further provides a sealing device for an ultrasonic sound head, comprising a joint, and further comprising the pressure releasing device according to any one of the above claims 1-7, wherein the connecting pipe is sleeved on the joint, so The locking device locks the connecting pipe on the joint so that the two are connected in a sealed manner.

Preferably, the above joint is a metal joint.

Preferably, the above-mentioned sealing medium is liquid.

The pressure release device provided by the present invention is used for the sealing device of an ultrasonic sound head, comprising a capsule body made of a soft material for placing a sealing medium, the capsule body is sealed and connected with a connecting pipeline, and the connecting pipeline A locking device is provided thereon, and the locking device is used for sealingly connecting the pressure releasing device with the sealing device of the ultrasonic sound head.

The pressure release device provided by the present invention communicates with the sealing device of the ultrasonic sound head through a pipeline when in use. When the temperature of the external environment increases, the volume of the sealing medium in the sealing device of the ultrasonic sound head expands, the pressure increases, and part of the pressure is increased. The airtight medium enters the balloon body through the pipeline. Since the material of the balloon body is a soft material, the shape of the balloon structure changes to a circular shape with increasing pressure. When it is close to a circle, the volume increases to the maximum. When the ambient temperature decreases, the volume of the sealing medium in the sealing device of the ultrasonic head shrinks. Under the action of the external atmospheric pressure, the outer surface of the capsule gradually moves closer, and part of the sealing medium flows back into the sealing device. The limit state of the capsule is sticking Together, the pressure in the sealing device is released, so that the sealing device is not damaged by the external atmospheric pressure due to the reduction of the internal pressure.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are For some embodiments of the present invention, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

1 is a schematic structural diagram of a sealed decompression device provided by an embodiment of the present invention;

Fig. 2 is the sectional structure schematic diagram of Fig. 1;

3 is a schematic structural diagram of the sealing and decompression device provided in an embodiment of the present invention when they are attached together;

Fig. 4 is the sectional structure schematic diagram of Fig. 3;

5 is a schematic structural diagram of the sealed decompression device provided by the embodiment of the present invention when it is close to a circle;

FIG. 6 is a schematic cross-sectional structure diagram of FIG. 5 .

In Figure 1-6 above:

Connect the pipeline 1, the bladder 2, and the concave 3.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to FIG. 1 to FIG. 6. FIG. 1 is a schematic structural diagram of a sealed decompression device provided by an embodiment of the present invention; FIG. 2 is a cross-sectional structural schematic diagram of FIG. 1; Figure 4 is a schematic cross-sectional structure diagram of Figure 3; Figure 5 is a schematic structural diagram of a sealed decompression device provided by an embodiment of the present invention when it is close to a circle; Figure 6 is a schematic cross-sectional structure diagram of Figure 5 .

The pressure release device provided in the embodiment of the present invention, a sealing device for an ultrasonic sound head, includes a capsule body 2 made of a soft material and used for placing a sealing medium. A locking device is provided on the pipeline 1, and the locking device is used for sealingly connecting the pressure releasing device and the sealing device of the ultrasonic sound head.

The pressure release device provided by the embodiment of the present invention communicates with the sealing device of the ultrasonic sound head through a pipeline when in use. When the temperature of the external environment increases, the volume of the sealing medium in the sealing device of the ultrasonic sound head expands, and the pressure increases. , part of the airtight medium enters into the balloon body 2 through the pipeline. Since the material of the balloon body 2 is a soft material, the shape of the balloon structure changes to a circular shape as the pressure increases. When it is close to a circle, the volume increases to maximum. When the ambient temperature decreases, the volume of the sealing medium in the sealing device of the ultrasonic head shrinks. Under the action of the external atmospheric pressure, the outer surface of the capsule body 2 gradually moves closer, and part of the sealing medium returns to the sealing device. The limit state of the capsule body 2 In order to fit together, the pressure in the sealing device is released, so that the sealing device is not damaged by the external atmospheric pressure due to the reduction of the internal pressure.

In order to further optimize the above solution, the soft material can be rubber, and the connecting pipe 1 and the bladder 2 are integrally formed. The length of the capsule body 2 is greater than its own width, and the outer surface of the capsule body 2 in the longitudinal direction is concave. The outer surface of the capsule body 2 includes a plurality of facets, wherein one facet or a plurality of facets are concave.

An embodiment of the present invention further provides a sealing device for an ultrasonic sound head, including a joint, and a pressure release device as described in any of the above embodiments, the connecting pipe 1 is sleeved on the joint, and the locking device connects the The pipe 1 is locked on the joint so that the two are connected tightly.

Specifically, the sealing medium is liquid, and the sealing medium in the sealing and decompression device of the ultrasonic sound head is the same and communicating with the sealing medium of the capsule body 2 .

Wherein, the joint is a metal joint, which is convenient for docking with the connecting pipe 1 . Wherein, when the connecting pipe 1 is a soft pipe, the locking device can be a cable tie, and the connecting pipe 1 and the joint are fixed and sealed by a cable tie, or, the connecting pipe 1 is a hard pipe, and the locking device is a threaded locking An external thread is set on the joint, an internal thread is set on the inner wall of the connecting pipe 1, and the internal thread and the external thread are used together to achieve a sealed connection. At this time, the connection between the connecting pipe 1 and the bladder 2 can be realized by glue bonding. Seal the connection. The connecting pipe 1 can be a round pipe, the number of which is two and is located at both ends in the length direction of the bladder body 2, one of the connecting pipes 1 is used for connecting with the joint of the sealing device, and the other connecting pipe 1 is used for connecting the bladder. After the gas inside the body 2 is released, it is sealed by itself. Specifically, when the pressure release device provided in the embodiment of the present invention is applied to the sealing device of the ultrasonic sound head, the sealing medium in the sealing device needs to flow into the capsule body 2. When one connecting pipe 1 is butted with the joint, the other connecting pipe 1 is used to discharge gas, which is convenient for the entry of the airtight medium, and finally it can be sealed by the locking device on the connecting pipe 1. Or, since the connecting pipe 1 is a soft material, For example, rubber can be sealed by heating or the like.

When implementing:

The pressure release device provided by the embodiment of the present invention is a soft material, and is manufactured by integral molding of a mold, thereby realizing low-cost mass production. Both ends are designed as round tube structures, and the round tube at one end is connected with metal joints and fastened with cable ties to ensure the firmness and tightness of the installation and connection. In two directions, see Figure 1, the outer surface in the long axis direction is designed with a concave structure. When the temperature of the external environment increases, the volume of the airtight liquid in the sealing device expands, the pressure increases, and part of the airtight medium flows into the capsule body 2. Since the material of the capsule body 2 is a soft material, the shape of the balloon structure changes with the The pressure increases towards a circular shape, and when approaching a circular shape, see Figure 5, the volume increases to a maximum. When the ambient temperature decreases, the volume of the airtight liquid shrinks. Under the action of the external atmospheric pressure, the outer surface of the balloon in the direction of the long axis gradually moves closer, and part of the airtight medium flows back into the sealing device. It is not destroyed by the external atmospheric pressure due to the reduction of the internal pressure.

The above description of the disclosed embodiments enables any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A pressure release device is used for a sealing device of an ultrasonic sound head and is characterized by comprising a sac-shaped body made of soft materials and used for placing a closed medium, a connecting pipeline is connected to the sac-shaped body in a sealing mode, a locking device is arranged on the connecting pipeline, and the locking device is used for connecting the pressure release device with the sealing device of the ultrasonic sound head in a sealing mode.

2. The pressure relief device of claim 1, wherein the soft material is rubber.

3. The pressure relief device of claim 1, wherein the bladder has a length greater than its width, and wherein the lengthwise outer surface of the bladder is concave.

4. The pressure relief device of claim 1, wherein the outer surface of the bladder comprises a plurality of bodies, wherein one or more of the bodies are concave.

5. The pressure relief device of claim 1, wherein the connecting conduit is a flexible conduit, the locking device is a cable tie,

or,

the connecting pipeline is a hard pipeline, and the locking device is locked by threads.

6. The pressure relief device of claim 1, wherein the connecting conduits are two and located at opposite ends of the length of the bladder, one of the connecting conduits being adapted to connect to a fitting of a sealing device, and the other connecting conduit being adapted to seal itself after venting gas from within the bladder.

7. The pressure relief device of claim 1, wherein the connecting conduit and the bladder are integrally formed.

8. A sealing device for an ultrasonic sound head, comprising a joint, and further comprising a pressure relief device according to any one of claims 1 to 7, wherein the connecting pipe is sleeved on the joint, and the locking device locks the connecting pipe on the joint to enable the connecting pipe and the joint to be connected in a sealing mode.

9. The sealing device for an ultrasonic applicator tip of claim 7 wherein the fitting is a metal fitting.

10. The sealing device for an ultrasonic applicator tip of claim 7 wherein the containment medium is a liquid.