KR20120057367A - Apparatus for coupling the middle portion of bottle, container, vessel, etc. - Google Patents

Abstract

PURPOSE: A middle unit combining and separating apparatus for a container is provided to enable users to easily combine and separate a middle unit of a container with one operation. CONSTITUTION: A middle unit combining and separating apparatus for a container comprises the following: an upper container body(20) and a lower container body(40) forming the container; a watertight member(60) maintaining the watertight property in between the upper and lower container bodies; watertight supporters(31, 51) closely attached to the watertight member from the upper and lower container bodies; plural upper locking units(35) formed on the lower side of the upper container body, and protruded toward the inner direction of the upper container body; and plural lower locking units(55) formed on the upper side of the lower container body, and protruded to the outer direction of the lower container body.

Description

Apparatus for coupling the middle portion of bottle, container, vessel, etc.

The present invention relates to a cylinder containing a liquid, such as a water bottle, beverage bottle, thermos bottle, baby bottle, and more particularly relates to the intermediate portion of the cylinder separating and separating unit that can separate or combine the middle portion of the cylinder.

In general, tubs, including water bottles, are containers made of liquids, including drinking water, and have inlets formed to contain or discharge water (or liquids) on the upper side, and lids to open and close the inlets. It is made of a structure provided with a stopper.

However, these cylinders are generally formed with a very narrow opening compared to the size of the cylinder, so when cleaning the interior of the cylinder, it is not easy to clean the interior of the cylinder, such as using a rod such as chopsticks. There was a problem that it is not easy to use hygienically in repeated use.

In order to solve the above problems, a structure capable of separating the middle part of the cylinder is proposed.

1 is a view disclosed in Korean Utility Model Publication No. 20-2009-0003800, which is a structure consisting of a water bottle upper end 11 and a water bottle lower end 12 by separating a middle portion of a tubular fluid, that is, a water bottle. Is a perspective view showing a cylindrical water bottle having a structure that is fastened to the female thread line (14). Figure 1 (a) shows a state in which the water bottle is coupled, Figure 1 (b) shows a state in which the water bottle is separated.

Therefore, the removable tubular fluid as shown in Figure 1, when cleaning the interior, after separating the water bottle upper end 11 and the water bottle lower end 12, as shown in Figure 1 (b), after washing or sterilizing the interior And since the drying operation can be performed, it becomes possible to use a more hygienic and clean cylinder.

On the other hand, when using the water bottle, the male screw line 13 of the upper end of the water bottle 11 and the female screw line 14 of the lower end of the water bottle 12 can be used in combination, and the male screw line 13 and the female screw line 14 are separated from each other. The surface (S) is formed so that the packing member of the O-ring type to enhance the watertightness of the water bottle.

However, since the above-described separate type fluids of the prior art are made of a screw-type coupling structure, watertight performance may be degraded while the parts joined by the screws are loosened due to the shaking of the cylinders, and in severe cases due to the decrease in watertight performance, There is a problem that the reliability is poor, such as water leaking inside the cylinder.

In addition, since the prior art detachable cylinder consists of a screw-type coupling structure, it is necessary to rotate the upper bucket or the lower bucket several times in order to be completely engaged, and accordingly, the inconvenience of having to perform a great deal of effort in separating and combining the cylinder can be solved. have.

The present invention has been made in order to solve the above problems, an object of the present invention is to provide an intermediate portion combined separation device of the cylinder that can be easily and simply combined and separated by a single operation.

In addition, an object of the present invention is to provide a middle-coupling separation apparatus of a cylindrical body that can maintain the excellent water-tight performance continuously so that the cylinder is not easily released in a coupled state.

The intermediate part combined separating apparatus of the cylinder which concerns on this invention for realizing the said subject consists of an upper cylinder and a lower cylinder, Comprising: It is comprised so that the middle part of a cylinder can be combined or isolate | separated, It is provided with a watertight member for holding, wherein the upper cylinder and the lower cylinder is provided with a watertight support portion in close contact with the watertight member from the upper side and the lower side, respectively, the upper cylinder is provided with a plurality of upper locking portions protruding inward in the lower end portion; The lower cylinder includes a plurality of lower locking parts protruding outwardly at an upper end thereof, and the upper locking part and the lower locking part are coupled to or separated up and down by relatively rotating the upper and lower cylinders in opposite directions. The upper and lower cylinders are configured to be coupled or separated, the upper The locking portion and the lower locking portion are formed to be inclined in the mutually coupled direction, at least one of the upper locking portion and the lower locking portion is an initial predetermined section in which the upper locking portion and the lower locking portion are coupled in a direction in which the watertight member is compressed more than a predetermined time. As the upper locking part and the lower locking part are inclined, the compressed watertight member is formed to be inclined in a direction in which a predetermined amount is restored. When the upper locking part and the lower locking part are combined, the watertight member is the watertight support part of the upper cylinder and the lower cylinder. It is characterized in that it is configured to maintain a compressed state to some extent.

At least one of the upper locking portion and the lower locking portion is preferably provided with a stopper so as not to rotate any more when the coupling of the upper and lower locking parts is completed.

Pressing line for pressurizing the upper surface of the watertight member in the upper watertight support of the upper cylinder to provide a pressing force and pressing line for pressurizing the bottom surface of the watertight member in the lower watertight support of the lower cylinder to provide a pressing force to the center of the watertight member. It is also possible to be staggered with each other in the inner and outer directions.

On the other hand, the upper cylinder is configured so that the intermediate parts connected to the upper locking portion from the watertight support portion of the upper cylinder is separated from each other, the watertight support portion of the upper cylinder is formed with a first flange protruding outward of the cylinder and The upper locking part may protrude in an inner direction of the cylinder to form a second flange part which is caught by the first flange part.

In addition, the lower cylinder is also configured to be separated from the watertight support of the lower cylinder to the lower portion of the intermediate portion is connected to each other, the watertight support side of the lower cylinder is formed with a third flange protruding in the outward direction of the cylinder and The lower locking part may protrude in an inner direction of the cylinder to form a fourth flange part which is caught by the third flange part.

Means for solving the problems of the present invention as described above, will be described more specifically and clearly by examples of the 'details for the implementation of the invention', or the accompanying 'drawings' to be described below.

The intermediate portion combined separating device of the cylinder according to the present invention has the effect of being able to easily and simply separate and combine the intermediate portion of the cylinder in one operation.

In addition, the present invention can not easily be released in the state in which the cylinder is coupled to maintain the excellent watertight performance continuously has the effect of increasing the stability and reliability of the cylinder.

Various effects of the present invention, including such effects, will be described in more detail in the following 'Details of the Invention' section.

1 is a view showing a detachable cylinder of the prior art.
Figure 2 is a perspective view showing a cylinder provided with an intermediate joint separating device according to an embodiment of the present invention.
Fig. 3 is an exploded perspective view of the main part of the cylinder shown in Fig. 2.
4 is an exploded sectional view of an essential part of the cylinder shown in FIG. 2.
It is sectional drawing of the principal part engagement state of the cylinder shown in FIG.
6 is a conceptual structural diagram for explaining the inclined coupling structure of the upper locking portion and the lower locking portion in the present invention.
FIG. 7 is a detailed view of portion “A” of FIG. 5 showing a state in which the upper locking portion and the lower locking portion are coupled and the watertight member is compressed in the present invention.
FIG. 8 is a view of another embodiment of the present invention in which the upper locking portion and the lower locking portion are staggered, and are detailed views of the same parts as in FIG. 7.
9 and 10 are views of another embodiment of the present invention having a coupling structure, which are detailed views of the same parts as in FIG. 7.
11 and 12 are schematic views for explaining the locking structure of the upper locking portion and the lower locking portion in the present invention.

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

2 to 7, an embodiment of the present invention will be described.

Figure 2 is an overall perspective view showing a cylinder provided with an intermediate joint separating device according to the present invention.

In FIG. 2, reference numeral 20 denotes an upper cylinder, and reference numeral 40 denotes a lower cylinder, and the cylinder according to the present invention is basically coupled to each other in a state where the upper cylinder 20 and the lower cylinder 40 are detachably configured. It is comprised so that one cylinder may be formed.

The upper cylinder 20 may be configured such that its upper portion becomes relatively narrower than the portion that is combined with the lower cylinder 40, such as a general cylinder flow, and the inlet 22 is formed at the upper end to allow the liquid to enter or discharge do. The inlet 22 is configured to be opened and closed by a lid or stopper 25, the opening and closing structure of the inlet can be applied by adopting a variety of well-known opening and closing structure, but is not limited thereto. Detailed description thereof will be omitted.

The lower cylinder 40 is preferably formed in a structure in which the lower portion is blocked, including a circumferential surface except for a portion coupled to the upper cylinder 20, but is not limited thereto.

The upper cylinder 20 and the lower cylinder 40 is configured to be separated according to the user's needs, such as when cleaning the cylinder, with reference to Figures 3 to 5, the upper cylinder 20 and the lower cylinder ( Referring to the coupling structure of 40) in detail as follows.

Before describing the coupling structure of the upper cylinder 20 and the lower cylinder 40 (hereinafter also referred to as 'upper and lower cylinder'), the airtightness is maintained so that fluid does not leak between the upper and lower cylinders 20 and 40. First, the watertight member 60 will be described.

The watertight member 60 is formed in a ring-shaped structure so as to be located between the upper and lower cylinders 20 and 40, and the material is preferably made of rubber or synthetic resin material used for packings.

The upper cylinder 20 and the lower cylinder 40 are provided with watertight support portions 31 and 51 which are in close contact with the watertight member 60 from above and below so as to support the watertight member 60.

That is, the lower portion of the upper cylinder 20 is provided with an upper watertight support portion 31 in contact with or in close contact with the upper surface of the watertight member 60, and the upper portion of the lower tube 40 is provided on the bottom surface of the watertight member 60. A lower watertight support 51 is in contact or in close contact. The upper watertight support part 31 and the lower watertight support part 51 are preferably configured to correspond to each other up and down about the watertight member 60.

The watertight member 60 may be configured to be mounted between the upper watertight support 31 and the upper locking portion 35 to be described below. Such a watertight member 60 can be configured by setting its shape appropriately according to the structure of the mounting space.

Now, the coupling structure of the upper cylinder 20 and the lower cylinder 40 will be described in detail.

The lower end part of the upper cylinder 20 is provided with a plurality of upper locking parts 35 protruding inward. At this time, the upper locking part 35 is formed to extend inward from the lower end of the upper cylinder 20 (method of injection molding or casting), or a method of bending the lower end inward (method of pressing a plate, etc.). And the like.

The upper end of the lower cylinder 40 is provided with a plurality of lower locking portions 55 protruding outward. At this time, the lower locking portion 55 may also be configured to be formed to extend outward from the upper end of the lower cylinder 40, or to bend the upper end outward.

The upper locking portion 35 and the lower locking portion 55 (hereinafter also referred to as 'upper and lower locking portion') are formed at regular intervals in the circumferential direction in each cylinder, and the relative cylinder is provided between the locking portion and the locking portion of each cylinder. Passing portions 37 and 57 are formed to allow the locking portions to pass therethrough, respectively.

That is, the upper locking portion 35 is formed in a plurality of protruding inward direction, the passage portion 37 of the deleted structure is formed between the protruding portion upper and lower cylinders 20, 40 The lower locking part 55 is formed to pass through when engaging and separating. In addition, the lower locking portion 55 is formed in a shape in which a plurality of protruding in the outward direction, and also between the protruding portion is formed with a passage portion 57 of the deleted structure upper and lower cylinders 20, 40 The upper locking portion 35 is formed so as to pass through and to separate the.

According to the structure of the upper locking part 35 and the lower locking part 55, when the upper cylinder 20 and the lower cylinder 40 are combined, each locking part is a passage part 37 between the relative locking parts. Passing the 57, and when the upper cylinder 20 or the lower cylinder 40 is rotated in the mutually coupled direction in the state that each of the locking portion is passed, the upper locking portion 35 as shown in FIG. As the lower locking portion 55 enters the lower portion of the upper cylinder 20 and the lower cylinder 40 is combined.

On the contrary, when the upper cylinder 20 and the lower cylinder 40 are separated, when the upper cylinder 20 or the lower cylinder 40 is rotated in the separation (unlocking) direction opposite to the coupling (locking) direction, respectively, The locking part of the upper cylinder 20 and the lower cylinder 40 is located in the passage between the relative locking portion, and when the upper cylinder 20 and the lower cylinder 40 in a direction away from each other, the upper cylinder 20 and the lower cylinder 40 is separated. .

As described above, the upper and lower locking parts 35 and 55 coupled to and separated from each other are formed to be inclined in the mutually coupled direction, which will be described in detail below.

At least one of the upper locking part 35 and the lower locking part 55 may be inclined in a direction in which the watertight member 60 is compressed by a predetermined or more interval. Also referred to as 'entrance inclined plane' (Sa), and inclined in a direction in which the compressed watertight member 60 is restored in a predetermined amount while the upper locking part and the lower locking part are engaged (this is also referred to as a 'combination slope' (Sb) hereinafter). When the upper locking part and the lower locking part are combined, the watertight member 60 is compressed to some extent between the watertight support parts 31 and 51 of the upper cylinder 20 and the lower cylinder 40. Is configured to remain.

In the accompanying drawings (Fig. 5, etc.) shows a configuration in which the entry slope (Sa) is formed in front of the coupling slope (Sb) of the upper locking portion (35). Although not illustrated in the drawing, the entrance inclined surface may be configured in the same manner in front of the combined inclined surface Sb of the lower locking portion 55, and the entrance inclined surface Sa may be provided on the upper and lower locking portions 35 and 55, respectively. It is also possible to configure.

In addition, at least one of the upper locking portion 35 and the lower locking portion 55 may be provided with a stopper 36 to prevent rotation any more when the upper and lower locking portions are combined.

When the stopper 36 has a structure that prevents the upper and lower cylinders 20 and 40 from rotating relative to each other when the upper and lower locking portions 35 and 55 are completely combined, the upper and lower locking portions 35 The upper and lower cylinders 20 and 40 may be formed in any of the portions where the upper and lower cylinders 20 and 40 are coupled to each other. For example, it is also possible to protrude the structure in which the lower locking part 55 is caught so as not to rotate further inside the passage part 37.

Now, with reference to FIGS. 6 and 7, the inclined coupling structure of the upper and lower locking portions 35 and 55 as described above will be described in detail, and the operation and effects thereof will be described.

In Fig. 6, reference numeral 35 denotes one of the upper locking portions of the upper cylinder, and reference numeral 55 denotes one of the lower locking portions of the lower cylinder. In addition, reference numeral 60 denotes a watertight member. In the drawing, the reason why the upper and lower locking parts 35 and 55 are disposed on the side surfaces is shown in accordance with the coupling state of the upper locking part 35 and the lower locking part 55. The virtual watertight member 60 for showing the deformation (compression or restoration) state is shown.

The deformation state of the watertight member 60 according to the coupling position of the upper locking part 35 and the lower locking part 55 is demonstrated. It is assumed that the upper surface 61 of the watertight member 60 is not deformed in a state where the contact is maintained on the upper watertight support 31.

When the lower cylinder 40 is rotated (from right to left in the drawing) to join the upper and lower cylinders 20 and 40, the point P of the lower locking portion 55 is initially the upper locking portion 35. When the watertight member 60 is hardly compressed when it reaches the position of S1, the bottom surface 62 of the watertight member 60 is in contact with the lower watertight support 51 of the lower cylinder 40. do.

Subsequently, when the lower cylinder 40 further rotates and the point P slides up along the entry inclined surface Sa at the position of the first S1 to reach S2, the lower watertight support 51 also increases as the point P rises. The watertight member 60 is compressed while being raised, and the bottom surface 62 of the watertight member 60 is compressed to the L2 level position.

Thereafter, when the lower cylinder 40 is further rotated and the point P reaches the position of S3, the watertight member 60 is relaxed to some extent while the lower watertight support 51 is also lowered as the point P is lowered to a certain degree, At this time, the bottom surface 62 of the watertight member 60 is relaxed to the L3 level position. However, at this time, the watertight member 60 is not completely relaxed (restored) to the L1 level, so that the watertight member 60 is compressed between the upper watertight support 31 and the lower watertight support 51. Thus, the watertight function is realized.

Now, the effects of the present invention as described above will be described.

When applying the rotation for the coupling of the upper locking portion 35 and the lower locking portion 55, in order to initially slide the point P from S1 to S2, it is necessary to apply a rotation to compress the watertight member 60 by that much, It is necessary to apply a strong rotational force at a moment, but once the point P rises to S2, when the lower locking portion 55 is further rotated, the watertight member 60 will expand (restore) from L2 to L3. The restoring force of the watertight member 60 generated at this time acts as a force to help the lower locking portion 55 easily rotate up to S3.

Therefore, when joining the upper and lower cylinders 20 and 40, if a force is returned briefly at the initial stage of the coupling, then the restoring force of the watertight member 60 is added, and the cylinder close to the so-called one-touch property is easily completed while the coupling is completed. Combination is possible.

In the above-described process, when the upper cylinder 20 and the lower cylinder 40 are in a combined state, it will be described in terms of stability in use, such as when climbing the mountain filled with water.

Conventional cylinders as shown in Figure 1, when a variety of harsh forces are applied to the cylinder, there is a fear that the water is poured out as the bond is released.

However, in the cylinder having the structure according to the present invention, in order for the coupling of the cylinder to be released, the point P at the position of S3 in FIG. 6 should rise to the position of S2 and descend to the position of S1. ), From the level of L3 to the level of L2, must be exerted simultaneously on the upper cylinder 20 and the lower cylinder 40 simultaneously (while P moves from S3 to S2) and in the same direction. . However, this can only be done by applying an external force (the force to separate the body) rather than a natural external force. In other words, the self-elastic force of the watertight member 60, which is not compressed from the L3 level to the L2 level, is to prevent the body coupling structure of the present invention from being separated by an external force irrelevant to the user's will.

As a result, the cylinder having the structure according to the present invention as described above is not easily separated without the user's will during use, thereby increasing the stability and reliability.

8 is a view of another embodiment of the present invention in which the upper locking portion and the lower locking portion are staggered from each other, and are detailed views of the same parts as in FIG. 7.

In another embodiment of the present invention, the upper watertight support portion 31 of the upper cylinder 20 pressurizes the upper surface of the watertight member 60 to provide a pressing force and the lower watertight support portion 51 of the lower cylinder 40. Pressing the bottom surface of the watertight member 60 to provide a pressing force in the can be configured to be alternately arranged in the radial direction, that is, the inner and outer direction of the cylinder around the watertight member 60. That is, as illustrated in the drawings, the diameter d ₁ of the pressing line of the upper watertight support part 31 may be smaller than the diameter d ₂ of the pressing line of the lower watertight support 51, and vice versa. It is also possible.

The above-mentioned pressurizing line refers to a line circumferentially connecting a central portion for intensively pressing the watertight member 60 in the upper watertight support 31 and the lower watertight support 51.

As described above, when the diameter of the pressing line of the upper watertight support part 31 and the pressing line of the lower watertight support part 51 are different from each other, the watertight member 60 between the upper and lower pressure lines is formed. As the pressing force of the furnace can be more concentrated, the watertight performance can be improved.

That is, the pressurization line of the upper watertight support part 31 and the pressurization line of the lower watertight support part 51 (hereinafter also referred to as 'upper and lower pressurization lines') provide a mutually staggered vertical force while compressing the watertight member 60. When entering, the upper and lower pressure lines can be located in the lateral direction that is sufficiently inclined with each other. At this time, the force applied to the watertight member 60 in the lateral direction inclined from the upper and lower pressing lines, in addition to the force provided in the staggered vertical direction, the lateral direction generated between the upper and lower pressing lines (crossing each other). It is the power exerted by the power of. Therefore, the compressive force applied to the watertight member 60 becomes that much, thereby having a higher watertight performance.

As another embodiment of the present invention, in order to reduce the friction force between the upper and lower locking parts when engaging or separating the upper and lower locking parts, the structure that can reduce the contact area to at least one of the upper and lower locking parts Can be formed. This is a configuration for reducing the contact area between the upper and lower locking portions, for example, ribs (preferably formed long in the joining direction) or round projections protruding in one of the upper and lower locking portions in the direction of the relative locking portion. Or the like can be formed.

As such, if the ribs or round protrusions formed on one of the locking portions are configured to be coupled or separated while contacting the relative locking portions, the frictional force between the upper and lower locking portions can be reduced, and thus the cylinders can be coupled or separated. When the cylinder can be more easily combined or separated.

Such a frictional force reducing structure will be easily implemented by those of ordinary skill in the art, and thus, illustration of the drawings will be omitted.

9 and 10 are views of another embodiment of the present invention having a coupling structure.

In another embodiment of the present invention, the cylindrical portion (hereinafter referred to as 'upper coupling 30' or 'lower coupling 50') of the upper locking portion 35 side or the lower locking portion 55 side is The structure which is couple | bonded so that forward, backward (the longitudinal movement of a cylinder) or rotation can be rotated around the outer surface of a cylinder is demonstrated.

FIG. 9 is a view illustrating a configuration in which a coupling structure is applied only to the upper cylinder 20, in which intermediate portions connected from the watertight support part 31 of the upper cylinder 20 to the upper locking part 35 are separated from each other. It is configured to. That is, the watertight support portion 31 side of the upper cylinder 20 is formed with a first flange portion 32 protruding in the outward direction of the cylinder, the upper coupling portion 30 toward the upper locking portion 35 is the The second flange portion 33 protruding inwardly and caught by the first flange portion 32 is formed.

Therefore, the upper coupling 30 can move freely in the longitudinal direction of the cylinder around the upper cylinder 20 and can also rotate in the circumferential direction of the cylinder. In this state, in order to couple the upper cylinder 20 and the lower cylinder 40, the upper coupling 30 is moved in the direction of the lower cylinder 40, and the upper locking portion 35 as described in various embodiments of the foregoing embodiments. The upper and lower cylinders 20 and 40 are coupled by combining the lower locking part 55 and the lower locking part 55. At this time, the second flange portion 33 of the upper coupling 30 is in close contact by pressing the first flange portion 32 toward the upper cylinder 20 as shown in FIG.

FIG. 10 is a view illustrating an embodiment in which a coupling structure is also configured in the lower cylinder 40, and the intermediate parts connected to the lower locking portion 55 from the watertight support portion 51 of the lower cylinder 40 are separated from each other and are caught. .

That is, the watertight support part 51 side of the lower cylinder 40 is formed with the third flange part 52 which protrudes in the outward direction of the cylinder, and the lower coupling 50 which is the lower locking part 55 side is a cylindrical body. The fourth flange portion 53 is formed to protrude in the inner direction of the third flange portion 52 to be formed.

Like the upper coupling 30 described above, the lower coupling 50 can also move and rotate in the longitudinal direction of the cylinder around the lower cylinder 40, and when coupled with the upper coupling 30, the lower coupler The fourth flange portion 53 of the ring 50 presses the third flange portion 52 toward the lower cylinder 40 so as to be in close contact.

In the configuration in which the upper coupling 30 and the lower coupling 50 are coupled to or separated from each other, the principle of coupling separation of the upper and lower cylinders 20 and 40 described above is applied as it is, and thus, repeated description is omitted.

On the other hand, although not illustrated in the drawings, it is also possible to configure the lower coupling 50 only in the lower cylinder 40 without forming the upper coupling 30 in the upper cylinder 20.

11 and 12 are schematic diagrams for describing a locking structure (or detent structure) of the upper locking portion 35 and the lower locking portion 55.

As shown in FIG. 11, a concave groove part 35a is formed in the upper locking part 35, and a convex protrusion part 55a inserted into the groove part 35a is formed in the lower locking part 55, so that the upper locking part is formed. When 35 and the lower locking part 55 are fully engaged, it is also possible to comprise so that mutual engagement may be stably maintained.

12 is a view illustrating a structure in which the upper locking portion 35 and the lower locking portion 55 are mutually locked by the locking pin, and the locking pin 56 is disposed on either of the upper and lower locking portions 35 and 55. And a pin hole 38 is formed on the opposite side. At this time, the locking pin 56 is preferably configured to be provided with an elastic force by the spring (58).

As described above, the present invention has been described by the embodiments described in the drawings and the detailed description of the invention, which is merely exemplary, and those skilled in the art to which the present invention pertains may describe the invention described in the claims. Various modifications or changes may be made to the present invention without departing from the spirit thereof.

Claims (5)

Composed of the upper cylinder and the lower cylinder is configured to couple or separate the middle portion of the cylinder, between the upper cylinder and the lower cylinder is provided with a watertight member for maintaining airtightness,
The upper cylinder and the lower cylinder are each provided with a watertight support portion in close contact with the watertight member from the upper side and the lower side,
The upper cylinder is provided with a plurality of upper locking parts projecting inward in the lower end portion, and the lower cylinder is provided with a plurality of lower locking parts protruding outward in the upper end part, and the upper cylinder and the lower cylinder are opposed to each other in the opposite direction. The upper locking portion and the lower locking portion are coupled to or separated up and down by rotating, so that the upper and lower cylinders can be coupled or separated,
The upper locking portion and the lower locking portion are formed to be inclined in the mutually inclined direction, at least one of the upper locking portion and the lower locking portion is an initial predetermined section in which the upper locking portion and the lower locking portion are coupled to the watertight member is compressed at least a certain amount. When the upper locking portion and the lower locking portion are inclined in a direction, the compressed watertight member is formed to be inclined in a direction in which a predetermined amount is restored. When the upper locking portion and the lower locking portion are combined, the watertight member is formed of the upper cylinder and the lower cylinder. An intermediate part coupling separating device of a cylinder, characterized in that the compressed state is maintained between the watertight supports. The method according to claim 1,
At least one of the upper locking portion and the lower locking portion is provided with a stopper for stopping the rotation when the upper locking portion and the lower locking portion are completed.
The method according to claim 1,
Pressing line for pressurizing the upper surface of the watertight member in the upper watertight support of the upper cylinder to provide a pressing force and pressing line for pressurizing the bottom surface of the watertight member in the lower watertight support of the lower cylinder to provide a pressing force to the center of the watertight member. An intermediate part coupling separating device of a cylinder, characterized by being staggered with each other in an inward and outward direction.
The method according to claim 1,
The upper cylinder is configured such that the middle portion connected to the upper locking portion from the watertight support of the upper cylinder is separated and caught with each other,
The watertight support portion of the upper cylinder is formed with a first flange portion protruding in the outward direction of the cylinder, the upper locking portion is protruded in the inner direction of the cylinder is characterized in that the second flange portion to be caught on the first flange portion is formed. The intermediate joint coupling device of the cylinder.
The method according to claim 1 or 4,
The lower cylinder is configured such that the intermediate portion connected to the lower locking portion from the watertight support of the lower cylinder is separated from each other,
The watertight support portion of the lower cylinder is formed with a third flange protruding in the outward direction of the cylinder, the lower locking portion is protruded in the inner direction of the cylinder is characterized in that the fourth flange portion to be caught on the third flange portion is formed. The intermediate joint coupling device of the cylinder.

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