KR20080084387A

KR20080084387A - Watertight packing having lubricant reservoir

Info

Publication number: KR20080084387A
Application number: KR1020070026067A
Authority: KR
Inventors: 전채석
Original assignee: 전채석
Priority date: 2007-03-16
Filing date: 2007-03-16
Publication date: 2008-09-19

Abstract

The present invention relates to a watertight packing having a lubricant reservoir, and more particularly to a watertight packing in which a separate lubricant coating operation is not required when the pipe is inserted into a connection socket or a connector of a manhole. To this end, the watertight packing including the lubricant storage unit of the present invention includes a ring-shaped body installed on an outer circumferential surface of the tube; A lubricant reservoir formed inside the main body; A discharge unit communicating with the outside of the lubricant storage unit such that the lubricant stored in the lubricant storage unit can be discharged to the outside; And a stopper part installed to block the discharge part and falling from the discharge part to discharge the lubricant when a predetermined external force is applied.

Description

Watertight packing having lubricant reservoir

1 is a perspective view showing a watertight packing having a lubricant reservoir according to a preferred embodiment of the present invention.

Figure 2a is a cross-sectional view showing that the tube of the packing of Figure 1 is inserted into the connecting socket.

FIG. 2B is an enlarged view of portion A of FIG. 2A.

Figure 3a is a cross-sectional view showing that the tube of the packing of Figure 1 is inserted into the connecting socket.

3B is an enlarged view of a portion B of FIG. 3A.

4 is a cross-sectional view showing that the pipes with the packing of FIG. 1 are connected to each other by a connecting socket.

Figure 5 is a perspective view showing a watertight packing having a lubricant reservoir according to another preferred embodiment of the present invention.

Figure 6a is a cross-sectional view showing that the tube is installed in the packing of Figure 5 is inserted into the connecting socket.

FIG. 6B is an enlarged view of portion C of FIG. 6A.

FIG. 6C is an enlarged view of portion D of FIG. 6B.

Figure 7a is a cross-sectional view showing that the tube of the packing of Figure 5 is inserted into the connecting socket.

FIG. 7B is an enlarged view of portion E of FIG. 7A;

Figure 8a is a cross-sectional view showing that the tube of the packing of Figure 5 is inserted into the connecting socket.

8B is an enlarged view of a portion F of FIG. 8A.

9 is a cross-sectional view showing the pipes with the packing of FIG. 1 connected to each other by a connecting socket.

10: tube 18: socket for connection

20: main body 30: lubricating oil storage unit

40: discharge part 45: stopper

50: base portion 56: cover portion

100, 100a: Watertight packing with lubricant reservoir

The present invention relates to a watertight packing having a lubricant reservoir, and more particularly to a watertight packing in which a separate lubricant coating operation is not required when the pipe is inserted into a connection socket or a connector of a manhole.

In general, the pipe is a pipe in which a constant or sewage is moved, and has a constant size. That is, the tubes have a predetermined diameter and length, which are connected to each other or to the manhole by a connecting socket. On the other hand, the term 'pipe' in the present specification is defined as including a variety of pipes, such as water pipes and sewage pipes.

When connecting the pipes to each other or connecting the pipes to the connector of the manhole, ring-shaped packings are installed on the outer circumferential surface of the ends of the pipes to prevent leakage. The packing should be in close contact with the inner circumferential surface of the connection socket or the manhole connector to prevent leakage from the connection.

As such, when the packing is used, the pipes can be connected to each other or the pipes can be connected to the manholes without additional welding.

However, the packing is usually made of rubber, and it is easy to insert the pipe into the connection socket or the connector with the packing installed because of the large friction force between the packing and the connection socket or between the connection of the packing and the manhole. There is a problem that it does not.

In order to solve this problem, a method of applying a lubricant to the inner circumferential surface of the connecting socket, the outer circumferential surface of the connector or the packing, and then inserting the tube into the connection socket or the connector has been proposed.

However, the above method has a problem in that the lubricant must be applied separately, and if the lubricant application is not uniform, the packing is twisted because the friction force is not uniform.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a watertight packing which does not need to apply lubricant separately to insert a tube into a connection socket or a connector of a manhole.

Another object of the present invention is to provide a watertight packing which can uniformly apply lubricant to the outer circumferential surface of the packing, the inner circumferential surface of the connecting socket and the connector of the manhole.

In order to achieve the above object, a watertight packing having a lubricant storage unit according to a preferred embodiment of the present invention includes a ring-shaped body installed on an outer circumferential surface of a tube; A lubricant reservoir formed inside the main body; A discharge unit communicating with the outside of the lubricant storage unit such that the lubricant stored in the lubricant storage unit can be discharged to the outside; And a stopper part installed to block the discharge part and falling from the discharge part to discharge the lubricant when a predetermined external force is applied.

Preferably, the inner peripheral surface of the main body is formed with a protrusion that can be inserted into the groove formed on the outer peripheral surface of the tube.

Preferably, the tensile strength of the closure is less than the tensile strength of the body so that the closure can be separated from the outlet by the external force.

Watertight packing having a lubricant storage unit according to another preferred embodiment of the present invention, the base portion is provided on the outer peripheral surface of the tube, having a ring shape; And a cover part coupled to the base part to cover the base part to form a lubricant storage part between the lower part and the base part, wherein the base part and the cover part are connected to the cover part and the connecting socket when the pipe is inserted into the connecting socket. The cover part is coupled to be detached from the base part by the friction force between the cover part or the friction force between the cover part and the manhole connector.

Watertight packing having a lubricant storage unit according to another preferred embodiment of the present invention, the base portion is provided on the outer peripheral surface of the tube, having a ring shape; And a cover part coupled to the base part to cover the base part to form a lubricant storage part between the lower part and the base part, wherein one end of the cover part has a frictional force between the cover part and the connecting socket, or the cover part and the manhole connector. The cover part is coupled to be separated from the base part by the friction force therebetween, and the other end of the cover part is integrally formed with the base part.

Preferably, at least one of the upper surface of the base portion and the lower surface of the cover portion is formed with a projection line for watertight.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only embodiments of the present invention and do not represent all of the technical idea of the present invention, various equivalents that may be substituted for them at the time of the present application It should be understood that there may be variations and variations.

1 is a perspective view showing a watertight packing having a lubricant storage unit according to a preferred embodiment of the present invention, Figure 2a is a cross-sectional view showing that the pipe is installed in the connection socket is installed, Figure 2b is of Figure 2a An enlarged view of part A.

Referring to the drawings, the watertight packing 100 having the lubricant storage part discharges the body 20, the lubricant storage part 30 formed inside the body 20, and the lubricant stored in the lubricant storage part 30. The discharge part 40 and the stopper part 45 provided so that the discharge part 40 may be blocked may be provided.

The watertight packing 100 may be used when the tube 10 is inserted into the connecting socket 18, but may also be used when the tube 10 is inserted into a 'manhole connector'. The connector of the manhole is a hole formed in the side wall of the manhole so that the sewer pipe and the like can be inserted, and the structure thereof is disclosed in Korean Utility Model Registration No. 20-412485. However, hereinafter, the present invention will be described by taking the case in which the pipe 10 is inserted into the connection socket 18 for convenience of description.

The main body 20 is installed on the outer circumferential surface of the tube 10 and has a ring shape. The main body 20 may be made of any one of rubber, silicone, and plastic.

Preferably, the inner peripheral surface of the main body 20 is formed with a protrusion 22 that can be inserted into the groove 12 formed on the outer peripheral surface of the tube (10). The protrusion 22 is inserted into the recess 12 to prevent the tube 10 from being pushed back by the frictional force when the pipe 10 is inserted into the connecting socket 18.

Preferably, the protrusion line 24 is formed on the upper surface of the main body 20. Protruding line 24 is formed along the circumferential direction, and also serves to prevent water from moving backward after the pipe 10 is installed. That is, since the protrusion line 24 is inclined backward by the frictional force with the socket 18 as the tube 10 is inserted into the socket 18, the protrusion line 24 moves backward after being inserted into the socket 18. To prevent them.

The lubricant reservoir 30 is formed inside the main body 20. The lubricant stored in the lubricant storage unit 30 is pressed by the connecting socket 18 when the pipe 10 is inserted into the connecting socket 18 and discharged to the outside. At this time, the stopper 45 blocking the discharge part 40 is separated from the main body 20. The stopper 45 is described below.

Preferably, the lubricant reservoir 30 is formed along the circumferential direction of the body 20. When the lubricant reservoir 30 is formed along the circumferential direction of the main body 20, the lubricant is uniformly applied to the inner circumferential surface of the socket 18 when the tube 10 is inserted into the connecting socket 18. 100) can be prevented from twisting.

As described above, the lubricant reduces friction between the inner circumferential surface of the socket 18 and the packing 100. The lubricant may include grease, animal and vegetable lubricants, mineral lubricants, food detergents, and waxes. A material that does not damage) can be used.

The discharge part 40 is a passage through which the lubricant stored in the lubricant storage part 30 is discharged to the outside.

The discharge portion 40 is preferably formed at the tip of the packing 100, which is the case when the tube 10 inserted in the connecting socket 18 as shown in Figures 3a, 3b, and 4 is advanced. In order to allow the lubricant discharged from the discharge portion 40 located at the tip to act as a lubricant between the inner peripheral surface of the socket 18 and the packing 100.

The stopper part 45 is installed to block the discharge part 40. The stopper 45 falls from the discharge part 40 when an external force of a predetermined size is applied. In other words, the stopper portion 45 is pulled backward to the packing 100 by the friction force between the inner peripheral surface of the socket 18 and the packing 100 when the tube 10 is inserted into the socket 18 to move forward. This action is to be separated from the discharge portion 40 by the tensile force. When the stopper 45 falls, the lubricant is discharged to the outside by the pressure by the socket 18.

Preferably, the tensile strength of the plug 45 is less than the tensile strength of the body 20. This is to prevent the main body 20 from being damaged without the plug 45 falling when the tensile force is applied. The stopper 45 may be made of a material having a small tensile strength such as foam rubber, foam plastic, foam silicone, or the like.

More preferably, the plug portion 45 is formed with a groove 46 having a predetermined shape. When the tensile force is applied, the stress is concentrated in the groove 46, the plug 45 is dropped.

On the other hand, Figure 5 is a perspective view showing a watertight packing according to another embodiment of the present invention, Figure 6a is a cross-sectional view showing that the pipe is installed in the packing is installed in the connection socket. 6B is an enlarged view of portion C of FIG. 6A, and FIG. 6C is an enlarged view of portion D of FIG. 6B.

Referring to the drawings, the watertight packing 100a includes a base 50 and a cover 56 coupled to the base 50.

The base 50 is provided on the outer circumferential surface of the tube 10 and has a ring shape. The lid 56 forms the lubricant reservoir 30a together with the base 50.

The base part 50 and the cover part 56 are formed between the cover part 56 and the socket 18 when the tube 10 is inserted into the connecting socket 18, as shown in FIGS. 7A and 7B. By the frictional force of the cover portion 56 is coupled to be separated from the base portion 50.

Preferably, one end 57 of the cover portion 56 is coupled to the base portion 50 so as to be separated from the base portion 50 by the friction force. When one end 57 of the cover portion 56 is separated from the base portion 50, as shown in FIGS. 8A, 8B, and 9, the cover portion 56 is unfolded backward by the friction force and the lubricant is moved outward. Discharged.

On the other hand, the cover portion 56 may be completely separated from the base portion 50 by the friction force. That is, only one end 57 of the cover portion 56 is separated from the base portion 50, and the cover portion 56 is not extended to the rear, but both ends 57 and 58 of the cover portion 56 are The friction force may be separated from the base 50.

In addition, one end 57 of the cover portion 56 is coupled so as to be separated from the base portion 50 by the friction force, and the other end 58 of the cover portion 56 is integral with the base portion 50. It can also be

Preferably, one end 57 of the cover portion 56 is made of a material that can be easily separated from the base portion 50, for example, foam rubber, foamed silicone, foamed plastics, or the like. Joined in an indirect joining manner.

On the other hand, a projection line 51 for watertight may be formed on the upper surface of the base 50 and the lower surface of the lid 56. The protrusion line 51 is formed along the circumferential direction. When the tube 10 is inserted into the socket 18, the cover 56 is extended backwards, and the lower surface of the cover 56 faces upward. When the tube 10 continues to move forward, the protrusion line 51 is connected to the socket. (18) is inclined backward by the frictional force with the inner circumferential surface, it also serves to prevent the pipe 10 is moved backward by this inclination. On the other hand, the projection line 51 may be formed only on any one of the upper surface of the base portion 50 and the lower surface of the cover portion 56, both formed on the upper surface of the base portion 50 and the lower surface of the cover portion 56. May be

Preferably, the packing 100a has a protrusion 54 formed on the bottom surface of the base 50 and inserted into the recess 12 of the tube 10. The protrusion 54 serves to fix the packing 100a to the tube 10.

In the above, the present invention has been described by taking an example in which a pipe 10 having watertight packings 100 and 100a installed therein is inserted into a connection socket 18, but the watertight packings 100 and 100a are connected to a manhole. It can also be used to insert the tube 10 in the '.

Watertight packing having a lubricant storage unit according to the present invention has the following effects.

First, there is no need to apply lubricant separately to insert the tube into the connecting socket or end of the manhole.

Second, the packing can be prevented from being twisted by non-uniform application of lubricant.

Claims

A ring-shaped body installed on an outer circumferential surface of the tube;

A lubricant reservoir formed inside the main body;

A discharge unit communicating with the outside of the lubricant storage unit such that the lubricant stored in the lubricant storage unit can be discharged to the outside; And

The packing for watertightness provided with a lubricant reservoir, characterized in that it is installed so as to block the discharge portion, and a plug portion falling from the discharge portion so that the lubricant can be discharged when a predetermined external force is applied.

The method of claim 1,

Watertight packing having a lubricant reservoir, characterized in that the inner circumferential surface of the body is formed with a protrusion that can be inserted into the groove formed on the outer circumferential surface of the tube.

The method of claim 1,

Sealing portion having a lubricant storage portion characterized in that the tensile strength of the plug portion is smaller than the tensile strength of the main body so that the plug portion can be separated from the discharge portion by the external force.

A base portion provided on an outer circumferential surface of the tube and having a ring shape; And

And a cover part coupled to the base part to cover the base part and forming a lubricant storage part between the lower part and the base part.

The base part and the cover part is coupled so that the cover part can be separated from the base part by the frictional force between the cover part and the connecting socket when the tube is inserted into the connecting socket, or the friction force between the cover part and the manhole connector. Watertight packing with lubricant reservoir.

One end of the cover part is coupled so that the cover part can be separated from the base part by the friction force between the cover part and the connecting socket or the friction force between the cover part and the manhole connector, and the other end of the cover part is formed integrally with the base part. A watertight packing comprising a lubricant reservoir.

The method according to claim 4 or 5,

At least one of the upper surface of the base portion and the lower surface of the lid portion is a watertight packing having a lubricant reservoir, characterized in that a projection line for watertightness is formed.