KR101036002B1 - Air supply hose connector for air breathing mask - Google Patents

Abstract

The present invention relates to an air supply hose connector for an air breathing mask. The present invention is a tubular tube socket that is formed in the flow path is connected to one end of the mask is ventilated; A one-sided joint having one end coupled to the other end of the tube socket to be sealable, the other end cut in an inclined state, and a hollow sharing path formed therein; A pivot unit configured to pivotally rotate one end of the one side joint to the other end of the tube socket; A communication flow passage communicating with the hollow sharing passage of the one side joint is provided in a hollow shape, and an inclination corresponding to the other end of the one side joint is formed, and has one end coupled to the other end of the one side joint in a sealable state. The other side of the joint is connected to the air supply hose for supplying air to the other end is rotated about the other end of the one side joint; And a swivel unit configured to rotatably fix one end of the other joint to the other end of the one side joint. The present invention forms a straight hollow sharing passage and a communication flow path on one side joint and the other joint guiding the movement of air even when the air supply hose is rotated while guiding the rotation of the air supply hose with respect to the mask, so that a load is not applied to the inside of the connector. But the durability of the connector can be increased.

Description

Air supply hose connector for air breathing mask {HOSE CONNECTOR FOR AERIAL RESPIRATION MASK}

The present invention relates to an air supply hose connector for an air breathing mask.

In general, a worker working in a place where air is scarce, such as a fire site or a toxic gas site, wears a mask (MS) shown in FIG. 1 while breathing air supplied from an air tank not shown in the drawing. Abundant places can be evacuated quickly.

Here, the mask MS is connected to the rubber material supply hose (H) connected to the air reservoir. The air supply hose (H) forms a bend when the operator turns his head to work in a state wearing the mask (MS). At this time, the air supply hose H provides the rigidity generated while forming the bend to the mask MS to reduce the wearing feeling of the mask MS. Therefore, the wearer is very uncomfortable due to the rigidity of the air supply hose (H).

Therefore, in order to solve the above problem, as shown in FIG. 2, a connector capable of rotating while connecting the air supply hose H and the mask MS has been proposed.

2 and 3, the connector is inserted into and fixed to a boss connector 1 of a boss type, through which one end of the connector 2 is ventilated and fixed to the lower portion of the mask MS. Then, the connector is screwed to the mask connector (1) in the state in which the upper union nut (3) supports the annular projection (2a) protruding annularly formed on the outer peripheral surface of the connecting pipe (2). Therefore, the connector can be idled in the upper union nut 3 by the annular projection 2a of the connecting pipe 2. In addition, the connector is hemispherical, the space is formed inside, the upper boss (4a) protruding from the inner space, the upper joint body (4) formed with the lower surface (4b) is inclined, the upper end of the connector (2) Screwed together.

In addition, the connector has a hemispherical shape and a space is formed therein, and a lower boss 5a that contacts the end of the upper boss 4a protrudes from the inner space, and the upper surface 5b in a direction opposite to the lower surface 4b. The lower joint body 5 is formed to be inclined. The lower joint body 5 is inserted into the upper through hole 4c formed in the upper boss 4a and screwed into the female thread formed at the end of the inner circumferential surface of the lower through hole 5c formed in the lower boss 5a. Rotation is coupled to the upper joint body (4) by the bolt (7).

Finally, the connector has an annular projection NP1 protruding from the outer circumferential surface of the nipple NP inserted into the lower end of the lower joint body 5 with the lower union nut 6 connected to one end of the air supply hose H. It is screwed to the lower end of the lower joint body (5) in the caught state.

Therefore, the air supplied from the air supply hose H passes through the inner space of the upper joint body 4 and the lower joint body 5 and is provided to the mask MS through the connection pipe 2 and the mask connector 1. do.

Such a connector may be horizontally rotated about the connection pipe 2 because the upper joint body 4 is a state in which the annular projection 2a of the connection pipe 2 is supported by the upper union nut 3.

In addition, the connector may be rotated while the lower joint body 5 is inclined at the lower portion of the upper joint body 4 based on the bolt 7 connecting the upper boss 4a and the lower boss 5a.

Therefore, the wearer can turn the head freely while breathing because the connector rotates about the bolt 7 while the connector rotates about the connector tube 2 when the head is turned while wearing the mask MS. That is, the connector is automatically bent when the air supply hose (H) is bent to prevent the deflection of the air supply hose (H), so the rigidity of the air supply hose (H) due to the refracting of the air supply hose (H) is not transmitted to the mask (MS). .

However, the above-described connector is formed in a spherical space inside the upper joint body (4) and the lower joint body (5), the pressure in the inner space as shown by the arrow in Figure 3 when the high-pressure air is supplied There is a problem that the load is taken by. That is, the lower joint body 5 is easily rotated around the upper joint body 4 when the air is not supplied, but the wearer who wears the mask MS while the high pressure air is supplied and the load is applied to the internal space. When turning the head there is a problem that the air supply hose (H) is not bent due to the rotation of the internal space is not well rotated.

Furthermore, as the load is repeatedly formed in the inner spaces of the upper joint body 4 and the lower joint body 5, the upper joint body 4 and the lower joint body 5 may be opened to leak air. have.

Further, the upper boss 4a and the lower boss 5a are formed inside the upper joint body 4 and the lower joint body 5, and then the upper boss 4a and the lower boss 5a are formed. There is also a problem in that the manufacturing process is difficult because each through hole must be formed.

In addition, since the connection tube 2, the upper union nut (3), the upper joint body (4), the lower joint body (5) and the lower union nut (6) are integrally formed, the parts are excessively required. have.

The present invention has been made in order to solve this problem, and provided with a rotating member for guiding the supply of air to the mask while guiding the rotation of the air supply hose around the mask, it is made of a structure that does not take the load inside the rotating member It is an object to provide an air supply hose connector for an air breathing mask.

In particular, another object of the present invention is to provide an air supply hose connector for an air breathing mask having a structure in which the aforementioned rotating member can be easily manufactured.

Furthermore, another object of the present invention is to provide an air supply hose connector for an air breathing mask that can reduce the number of parts constituting the rotating member.

The present invention for achieving the above object is a tubular tube socket that is formed in the flow path therein one end is connected to the mask to be ventilated; A one-sided joint having one end coupled to the other end of the tube socket to be sealable, the other end cut in an inclined state, and a hollow sharing path formed therein; A pivot unit configured to pivotally rotate one end of the one side joint to the other end of the tube socket; A communication flow passage communicating with the hollow sharing passage of the one side joint is provided in a hollow shape, and an inclination corresponding to the other end of the one side joint is formed, and has one end coupled to the other end of the one side joint in a sealable state. The other side of the joint is connected to the air supply hose for supplying air to the other end is rotated about the other end of the one side joint; And a swivel unit configured to rotatably fix one end of the other joint to the other end of the one side joint.

As described above, the present invention forms a linear hollow sharing path and a communication flow path in one joint and the other joint guiding the movement of air even when the air supply hose is rotated while guiding the rotation of the air supply hose. Not only does the load take place, but the durability of the connector can be increased.

In addition, since the one side joint and the other side joint constituting the above-described connector are formed in a straight tube shape, the hollow joint path and the communication flow path of the one side joint and the other side joint can be formed by drilling, thereby making the production simple and easy.

Furthermore, since the one side joint and the other side joint constituting the connector are coupled using the rail and the ball, the one side joint and the other side joint can be easily and quickly assembled.

1 is a view showing a connector of a general air breathing mask.
2 is an exploded cross-sectional view of the air supply hose connector for air breathing mask of FIG.
3 is a cross-sectional view of the combined state of FIG.
Figure 4 is an exploded cross-sectional view of the air supply hose connector for air breathing mask of the present invention.
5 is a perspective view showing a combined state of FIG.
6 is a longitudinal cross-sectional view of FIG. 5;
7 is another longitudinal sectional view of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

The present invention includes a tube socket 10, one side joint 30, the pivot unit 50, the other side joint 70 and the swivel unit 90 as shown in FIG.

Tube socket 10 is formed in a tubular shape, as shown in FIG.

One side joint 30 has one end coupled to the other end of the tube socket 10 so as to be sealable, and the other end cut in an inclined state, as shown in FIGS. 4 and 6. It is formed into a straight tube formed. Such a one-side joint 30 is formed in a straight line as shown in Figure 5 can be easily processed. In addition, since the hollow joint path 31 is formed by drilling, the one side joint 30 may not only be easily processed, but also the load is not generated therein as the hollow joint path 31 is formed in a straight line by drilling. As shown in FIG. 4, the hollow sharing passage 31 may be expanded so that one end and the other end thereof may be inserted with the socket nipple 53 and the joint nipple 93, and the one end and the other as shown in FIG. 4. More preferably, the ends are bent.

As shown in FIGS. 4 and 6, the pivot unit 50 fixes one end of the one side joint 30 to the other end of the tube socket 10 such that pivoting is possible. Such a pivot unit 50 may be configured to include a socket nipple 53, a ball seat 55 and a ball 57, for example, as shown in FIG. 4.

As shown in FIG. 4, the socket nipple 53 is formed in the other end of the tube socket 10 and has a rail 51 having a groove shape on an outer circumferential surface thereof. And, the socket nipple 53 is inserted into one end of the one side joint 30, as shown in Figure 6 and the central axis of the one side joint (30) which is pivoted while communicating with the heavy sharing path 31 of the one side joint (30) Acts as. This, the socket nipple 53 is sealed in the state inserted into one end of the one-side joint 30 by the O-ring (OR) fitted to the lower end as shown in FIG. In addition, the socket nipple 53 is provided with a flange 52 on the outer circumferential surface as shown in FIG. 6, so that when the flange 52 is inserted into one end of the one side joint 30, the flange 52 is caught outside the one end of the one side joint 30. Can be.

Here, the above-described ball seat 55 is provided in a groove shape on the inner peripheral surface of one end of the one side joint 30 into which the socket nipple 53 is inserted, as shown in FIG. 4. And, the ball 57 is inserted into the rail 51 of the socket nipple 53 with the other side is seated on one side of the ball seat 55 as shown in Figure 6 the outer peripheral surface of the socket nipple 53 Rotatably support. Such a ball 57 may be composed of one or a plurality of balls together with other balls 57 inserted into both sides of the rail 51 as shown in FIG. 6. Therefore, the one-side joint 30 can be rotated horizontally by the ball 57, that is, by the pivot unit 50 as the vertical axis as shown in FIG. In addition, the socket nipple 53 is inserted into one end of the one side joint 30 in a state where the ball 57 is inserted into the ball seat 55, and the other side of the ball 57 is inserted into the rail 51. It is not only rotatably fixed by) but also easy to assemble.

On the other hand, the other ball 57 described above is inserted through the hole 58 formed through the through-hole 58 to the ball seat 55 from the outside of the one side joint 30, as shown in FIG. The other side surface exposed to the outside of the hole 58 by the external force applied through the 58 is deformed and fixed to the inner circumferential surface of the hole 58. That is, since the ball 57 is fixed to the hole 58 in a deformed state, the socket nipple together with the ball 57 previously seated in the ball seat 55 in a state in which separation from the outside of the hole 58 is prevented. The outer peripheral surface of 53 can be rotatably supported.

As shown in FIGS. 4 and 6, the other side joint 70 has a communication flow path 71 communicating with the heavy sharing path 31 of the one side joint 30 in a hollow shape, and the one side joint 30 An inclination corresponding to the other end is formed to have one end coupled to the other end of the one side joint 30 in a sealable state, and an air supply hose H for supplying air to the other end is connected to the one side joint 30. It is formed of a straight tube that is rotated about the other end of the. Since the other joint 70 is formed in a straight line, unlike the lower joint body 5 formed in the conventional hemispherical shape shown in FIGS. 2 and 3, the other joint 70 does not interfere with the outside. In addition, since the other side joint 70 has a communication flow path 71 formed by drilling, unlike the internal space formed in a hemispherical shape inside the conventional lower joint body 5 shown in FIGS. It does not occur.

The other joint 70 is preferably expanded so that the other end of the communication flow path 71 is inserted into one end of the air supply hose H, as shown in FIG. 4 of the communication flow path 71. More preferably, the ends are bent.

As shown in FIGS. 4 and 6, the swivel unit 90 rotatably fixes one end of the other joint 70 to the other end of the one joint 30. Such a swivel unit 90 may be configured to include a joint nipple 93, a ball seat 95 and a ball 97 as shown in FIG. 4, for example.

The joint nipple 93 protrudes from one end of the other joint 70 as shown in FIG. 4, and has a groove 91 rail on the outer circumferential surface thereof, and the one side joint 30 as shown in FIG. 6. It is inserted into the other end of the acting as the central axis of the other joint 70 is rotated while communicating with the communication flow path 71 of the one side joint (30). At this time, the joint nipple 93 is sealed in the state inserted into the other end of the one side joint 30 by the O-ring (OR) fitted to the bottom as shown in FIG. As shown in FIG. 4, the ball seat 95 is provided in a groove shape on the inner circumferential surface of the other end of the one side joint 30 into which the joint nipple 93 is inserted. As shown in FIG. 6, the ball seat 95 is inserted into the rail 91 of the joint nipple 93 while one side of the ball seat 95 is seated, thereby rotating the outer circumferential surface of the joint nipple 93. Support it if possible. Such a ball 97 may be composed of one or a plurality of balls together with other balls 97 as shown in FIGS. 4 and 6. Therefore, the other joint 70 may be rotated in an inclined state by the ball 97, that is, by the swivel unit 90, with the one side joint 30 as the vertical axis. In addition, the joint nipple 93 is inserted into the other end of the one side joint 30 while the ball 97 is inserted into the ball seat 95, and the other side of the ball 97 is inserted into the rail 91. 97 is not only rotatably fixed but also easy to assemble.

Meanwhile, the other ball 97 described above is fixedly installed on the inner circumferential surface of the hole 98 penetrated to the ball seat 95 as shown in FIG. 4 in the same manner as the ball 57 of the pivot unit 50 described above. Thus, the outer circumferential surface of the joint nipple 93 is rotatably supported together with the ball 97 previously seated on the ball seat 95.

On the other hand, the present invention may further comprise a frictional resistance reducing means as shown in FIG. Such a frictional resistance reducing means is to reduce the frictional resistance generated as one end of the other joint 70 is in close contact with the other end of the one side joint 30, one side joint as shown in FIG. Steps 20 formed on at least one of the other end of the other end and the other side joint 70 to reduce the adhesion area of the other end and one end of the one side joint 30 and the other side joint 70 in close contact with each other (20) Is preferable.

In addition, the present invention may further comprise a guide. Such a guide is for supporting one end of the other joint 70 to be rotated at the other end of the one side joint 30. As shown in FIG. 6, the guide is formed to protrude from one end of the other joint 70 so as to support the one end joint. It is preferable that it is the inner wall 40 which guides the outer peripheral surface of one end of 30.

On the other hand, the present invention may be manufactured in a state without a frictional resistance reducing means or guide as shown in Figure 7, but the frictional resistance is generated when the other joint 70 is rotated in one joint (30) As shown in FIG. 4 and FIG. 6, it is preferable to be manufactured with a frictional resistance reducing means or a guide.

Hereinafter, the assembly process and operation of the present invention.

First, the O-ring OR is inserted into one end of the one side joint 30, as shown in FIG. In addition, the tube socket 10 is inserted into the one end of the one-side joint 30, the socket nipple 53 formed in the lower portion in a state that is ventilated fixed to the mask (MS). At this time, the O-ring (OR) is previously inserted into one end of the one side joint 30, as shown in Figure 6, the socket nipple 53 is inserted into the one side joint 30 to the outer peripheral surface of the socket nipple 53 Is fitted.

Subsequently, the ball 57 of the one side joint 30, that is, the ball 57 of the pivot unit 50 is inserted through the hole 58 from the outside of the one side joint 30, and one side thereof contacts the rail 51. It is seated on the ball seat 55 in a fixed state and serves as a bearing. Since the ball 57 is in point contact with the rail 51, since the friction force hardly occurs when the mask MS moves, the ball 57 serves as a bearing.

In addition, the other ball 57 is seated on the ball seat 55 of the one-side joint 30 in the same manner as the above-described ball 57 (inserted through the hole) and then serves as a bearing with the ball 57 described above. do. At this time, the other ball 57 is fixed to the inner circumferential surface of the hole 98 while the other side is deformed by an external force applied from the outside of the hole 98, so that it does not leave the hole 98 when serving as a bearing.

Subsequently, another O-ring OR is inserted into the other end of the one side joint 30. Since the joint nipple 93 is inserted into the other end of the one side joint 30 by interference fit, the O-ring OR is inserted in the same manner as the socket nipple 53 described above.

In addition, the ball 97 of the other joint 70, that is, the ball 97 of the swivel unit 90 is seated on the ball seat 95 in the same manner as the ball 57 described above to serve as a bearing.

Finally, one end of the air supply hose H is inserted and fixed to the other end of the other joint 70.

In the present invention as described above, when the air supply hose (H) is formed as the wearer turns the head, as shown in Figure 5 one side joint 30 by the pivot unit 50 by the tube socket (10) 6) pivot in the horizontal direction with respect to the axis, or as shown in Figure 6 the other side joint 70 by the swivel unit 90, one-sided joint 30 is rotated in an inclined state with respect to the axis air supply hose (H) Prevents bending. That is, the present invention prevents the refracting of the air supply hose (H) because the one side joint (30) and the other side joint (70) is maintained while being refracted while rotating the air supply hose (H). At this time, the one side and the other side joint (30, 70) is formed in a straight line unlike the prior art, so that the cross-sectional area is smaller than the prior art, the pressure load by the high pressure air acts smaller than the conventional, the ball 57 smoothly bearing Because it plays a role, it works very smoothly while responding to rotation or bending immediately according to the state of movement of the mask MS. Therefore, the wearer does not deteriorate the wearing feeling of the mask MS because the rigidity of the air supply hose H is not transmitted unlike the conventional case even when the head is turned while wearing the mask MS, and thus the user can perform the task very conveniently. Can be.

On the other hand, the frictional resistance reduction means described above, as shown in Figure 6 by separating the contact portion of the one side joint 30 and the other side joint 70 by a predetermined distance (d) one side joint 30 and the other side joint 70 Since the contact area is reduced, the other joint 70 can be easily rotated as the frictional resistance of the other joint 70 is reduced.

In addition, the above-described inner wall 40 supports the outer circumferential surface of the other end of the one side joint 30 when the other joint 70 rotates as shown in an enlarged view of FIG. 6, so that the other side joint 70 may be rotated without shaking. have.

Since the above-described embodiment is merely a description of a preferred embodiment of the present invention, the scope of application of the present invention is not limited to the above, and appropriate modifications are possible within the scope of the same idea. Therefore, since the shape and structure of each component shown in the embodiments of the present invention can be modified and carried out, it is natural that such changes in shape and structure belong to the appended claims.

10: tube socket 20: step difference
30: one side joint 40: inner wall
50: pivot unit 70: other joint
90: swivel unit

Claims (4)

A tubular tube socket having a flow path formed therein and having one end connected to the mask so as to be ventilated;
A one-sided joint having one end coupled to the other end of the tube socket to be sealable, the other end cut in an inclined state, and a hollow sharing path formed therein;
A pivot unit configured to pivotally rotate one end of the one side joint to the other end of the tube socket;
A communication flow passage communicating with the hollow sharing passage of the one side joint is provided in a hollow shape, and an inclination corresponding to the other end of the one side joint is formed, and has one end coupled to the other end of the one side joint in a sealable state. The other side of the joint is connected to the air supply hose for supplying air to the other end is rotated about the other end of the one side joint;
And a swivel unit for rotatably fixing one end of the other side joint to the other end of the one side joint. The method of claim 1, wherein the pivot unit,
The socket is formed in the other end of the tube socket in the same body, has a rail of the groove shape on the outer circumferential surface, and is inserted into one end of the one side joint and acts as a central axis of the one side joint pivoted while communicating with the hollow joint of the one side joint. nipple;
A ball seat provided in a groove shape on an inner circumferential surface of one end of the one side joint into which the socket nipple is inserted; And
And at least one ball inserted into the rail of the socket nipple and rotatably supporting the outer circumferential surface of the socket nipple with one side of the ball seat seated thereon. The method of claim 1, wherein the swivel unit,
A joint nipple protruding from one end of the other joint, having a groove-shaped rail on an outer circumferential surface, and inserted into the other end of the one side joint and acting as a central axis of the other joint rotated while communicating with the communication flow path of the one side joint. ;
A ball seat provided in a groove shape on an inner circumferential surface of the other end of the one side joint into which the joint nipple is inserted; And
And at least one ball inserted into the rail of the joint nipple while the one side of the ball seat is seated to rotatably support the outer circumferential surface of the joint nipple. The method according to any one of claims 1 to 3,
Friction resistance reducing means for reducing the frictional resistance generated as the one end of the other joint is in close contact with the other end of the one side joint;
The frictional resistance reducing means,
Air supply for the air breathing mask, characterized in that the step is formed on at least one of the other end of the one side joint and one end of the other side joint to reduce the adhesion area of the other end and one end of the other joint and the other side joint Hose connector.

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