JP2949070B2 - Water tap mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an installation device for a water faucet with excellent earthquake resistance, which is installed at a branch port formed in a fluid pipe such as a water pipe.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. Hei 5-322888 filed by the present applicant discloses an apparatus for mounting a water faucet of this type. This mounting device is a large diameter jig for forming the lower end of the cylindrical metal fitting 02 into a large diameter portion as shown in FIGS.
It has 021. The expanding jig 021 has a hollow cylindrical main shaft 022
A roller member 024 pivotally supported by a pin 023 at a lower fork of the main shaft, and a moving rod 026 whose lower end surface is in contact with the upper cam portion 025 of the roller member and is accommodated in the main shaft. ing.
A leaf spring 033 is provided for biasing the roller member so as to be tiltable so as to contact the cam surface 025a of the cam portion 025 of the roller member 024. The roller member 024 includes a roller shaft 035 integrated with the cam portion, a roller main body 038 having a concavely curved radius surface 037 mounted on the shaft via a needle roller bearing (not shown), and a shaft end of the roller shaft. And a nut 041 which is screwed and attached to a screw portion 039 formed through a thrust bearing (not shown).

[0003]

By the way, in the above-mentioned mounting device, the rubber ring 04 is provided with the guide portion 01 at the upper end opening.
8 with the lower end of the cylindrical fitting 02 slightly fitted,
Because it is designed to be attached to the tip of the tiltable roller member 024 that is pivotally supported at one side, if the mounting condition of the rubber ring or the roller member is inclined, the rubber ring will be in an unstable mounting state, At the time of press-fitting into the branch port 09, the rubber ring may be damaged. Further, since the thrust bearing and the roller bearing are built in the roller body 038 and the length from the round surface 037 to the tip is longer, when the fluid pipe 06 is a small-diameter pipe, the tip of the roller member 024 (the nut 041) is used. (Nearby) hits the inner surface of the pipe, making it impossible to expand the diameter of the pipe. Furthermore, the load at the time of diameter expansion is concentrated on the mounting portion of the roller member 024, and the pin 023 is broken or the moving rod 0
26 or the main shaft 022 may generate bending stress, in which case the roller member 024 may escape to the load, making it difficult to obtain a constant-diameter expansion or hindering the vertical movement of the moving rod 026. There is.

Accordingly, the present invention solves the above-mentioned conventional problems, in which a rubber ring is stably attached to a lower portion of a diameter expanding jig, and the rubber ring is press-fitted into a branch port of the rubber ring. It is possible to prevent damage, and to make the expanding jig a structure with rigidity against expanding load, and to prevent the expanded member from expanding against the expanding load by using the roller shaft as both bearings. It is an object of the present invention to provide a water faucet mounting device that can be used.

[0005]

In order to achieve the above object, a mounting device according to the present invention has a main shaft having a shaft hole whose upper and lower ends are opened, and is vertically movably fitted into the shaft hole of the main shaft. In a water faucet mounting apparatus including a diameter increasing jig having a combined movable shaft and a diameter expanding member that supports the main axis of the diameter expanding jig so as to be vertically movable, The shaft hole is formed in an eccentric shaft hole which is eccentric with respect to the center axis of the main shaft, and the enlarged diameter of the movable shaft fitted in the shaft hole is formed at the lower end protruding from the shaft hole with substantially the same diameter as the main shaft. A head section is provided.
The diameter-enlarging head portion has a diameter-enlarging roller obliquely provided at an upper portion thereof, and an annular concave groove for mounting an inwardly formed annular protrusion at a lower end of a rubber ring is formed on a lower outer periphery, and a movable shaft is provided. With the rotation of the roller, the roller can be displaced to a position concentric with the main shaft and an eccentric position where the diameter-expanding roller is exposed to the outside. A flat locking surface is formed on the outer peripheral surface of the lower end portion of the main shaft, and the flat locking surface that closes and locks closely when this locking surface and the enlarged diameter head portion are in the eccentric position is the enlarged diameter head portion. Are formed on the outer peripheral surface of. The diameter-enlarging member includes an elevating mechanism for vertically moving the main axis of the diameter-expanding jig, and a mechanism for rotating the main axis of the diameter-expanding jig and moving the main axis separately from the vertical movement by the elevating mechanism. And an operation mechanism having a mechanism that does not move up and down.

According to a second aspect of the present invention, in the first aspect, the elevating mechanism is detachably fixed to a base having upper and lower ends open and a lower end opening fixed to the outer periphery of the fluid pipe. It has a cylindrical fixed support, a power transmission mechanism such as a gear meshing with a rack formed in the axial direction of the outer peripheral surface of the fixed support, and an operation handle, and is fitted to the outer periphery of the fixed support and fixed by the handle. A main body outer cylinder that can move in the axial direction along the outer periphery of the support column, and an expanded upper end and an lower end that open and hold a unit such as a cylindrical metal fitting or a rubber ring whose lower end opening is fitted to the outer periphery of the main shaft. A cylindrical member that is formed on the shape-holding portion, has an engagement portion on the upper end outer periphery that engages with the upper end of the main body outer cylinder, is fitted to the inner periphery of the fixed support, and moves integrally with the main body outer cylinder. It is provided near the pressing shaft and the operation handle of the main body outer cylinder,
A display mechanism for displaying the degree of pressing of the units on the outer peripheral surface of the fluid pipe in accordance with the movement of the pressing shaft.

According to a third aspect of the present invention, in the second aspect, the operating mechanism comprises a bearing case mounted on the outer cylinder of the main body, and an upper end of the operating case protrudes slightly above the case. A thrust bearing housed in a state where the thrust bearing is mounted, and a female screw member for a spindle that is mounted on the thrust bearing and that is screwed with a male screw formed on an upper portion of the spindle of the diameter increasing jig; An auxiliary ring which is engaged with an upper end flange of the case at a lower portion, and one end is pivotally supported on the outer periphery of the female screw member for the main shaft, and is engaged with an engagement recess formed on the outer periphery of the upper end flange of the case. An engaging piece to be engaged and an operating handle having an engaging concave portion with which the other end of the engaging piece is engaged and attached to the main shaft above the female screw member for the main shaft.

[0008]

FIG. 1 is a vertical sectional front view of a water faucet mounting apparatus showing an embodiment of the present invention. The water faucet mounting device 1 includes a diameter expanding jig 2 and a diameter expanding member 3. The enlarged diameter jig 2 has an eccentric shaft hole 5 whose upper and lower ends are opened as shown in a perspective view partially omitted in FIG. 2 and a sectional view of a lower portion in FIG. Is formed in a square shape with a large diameter head portion storage recess 6 having a lower end surface and both side surfaces opened to the outside, and an outer peripheral surface on one opening side of the storage recess having the shaft hole is flattened by a vertical step. A main shaft 8 having a locking surface 7 formed from a lower end to an intermediate height position, and a shaft hole 5 of the main shaft;
A movable shaft 10 is fitted to the movable shaft so as to be able to move up and down, and a diameter-enlarged head 11 fixed to the lower end of the movable shaft.

The enlarged head portion 11 has a main body having substantially the same diameter as the main shaft 8.
In the upper part of the main body 12 and above it, a square-shaped roller mounting part 13 that can be substantially fitted into the storage recess 6 is integrally formed. The lower end shaft portion of the movable shaft 10 is mounted on one side of the mounting portion 13. A roller mounting recess 15 is formed in an upper portion of the mounting portion 13, and a roller 16 having a large diameter is mounted on the recess so as to be tilted and rotatable by a shaft 17 provided between the roller and the other side. The diameter-enlarging roller 16 has a drum-like shape, and its outer radius is a diameter-enlarging surface 18. Roller mounting part 13
The upper portion of the main body 12 has an abutment surface 20 which abuts on the lower end surface of the main shaft 8 and is flattened by a horizontal step and a vertical step which is flattened by an abutment on the engagement surface 7 to engage. It is formed on the surface 21. On the outer periphery of the lower portion of the main body 12, there is formed an annular concave groove 23 for mounting an inwardly formed annular protrusion at the lower end of the rubber ring described later.

With this configuration, the diameter-enlarged head section 11 is
As shown in (A), when the roller mounting portion 13 is fitted into the housing recess 6 and the diameter-enlarging roller 16 is housed in the recess, the main shaft 8 is concentric with the movable shaft 10. 3B, the roller mounting portion 13 of the enlarged diameter head portion 11 is protruded below the recessed portion 6 as shown in FIG. 3B, and the direction of the movable shaft 10 is reversed by rotating the movable shaft 10 and raised. As shown in (C), the contact surface 20 of the enlarged diameter head 11 is brought into contact with the lower end surface of the main shaft 8 and the enlarged surface 18 of the enlarged roller 16 is brought into contact with the engaging surfaces 7 and 21. When it is exposed to the outside, it can be displaced so as to have an eccentric positional relationship with the main shaft 8.

As shown in FIG. 1, the diameter-enlarging member 3 includes an elevating mechanism 31 for vertically moving the main shaft 8 of the diameter-expanding jig 2 and a main shaft 8 of the diameter-expanding jig separately from the vertical movement by the elevating mechanism. An operation mechanism 32 having a mechanism that rotates and moves up and down and a mechanism that rotates the main shaft 8 but does not move up and down.

The elevating mechanism 31 has upper and lower ends opened, and is removably fixed to a base 37 of a boring machine (not shown) used for boring a fluid pipe fixed to an outer periphery of a fluid pipe 36 at a lower end opening. A downward fixing cap nut 38 is provided with a cylindrical fixing post 40 which is screwed and attached via a gasket 39.
A rack 41 is formed on the outer surface of the fixed support 40 in the axial direction. A worm 46 provided on a handle shaft 45 by rotating an operating handle 44 for raising and lowering the gear 43 by fitting a gear 43 to a rack 41 around the outer periphery of the fixed support 40 by engaging a gear 43 with the rack 41.
The main body outer cylinder 42 is moved in the axial direction along the fixed column 40 by transmitting the power from and rotating.

On the other hand, a cylindrical pressing shaft 50 having a length almost twice as long as the support column is fitted on the inner periphery of the fixed support column 40.
The pressing shaft 50 has upper and lower ends opened so that the main shaft 8 can be inserted and held, and an expanded shape for holding units such as a cylindrical metal fitting or a rubber ring fitted to the outer periphery of the main shaft 8 in the lower end opening. Holder 51
Are formed, and a screw 52 is formed on the outer periphery of the upper part. A nut 53 as an engaging portion that engages with the upper end of the main body outer cylinder 42 is screwed to the male screw 52. The engagement between the nut 53 and the upper end of the main body outer cylinder 42 causes the pressing shaft 50 to move integrally with the main body outer cylinder 42. In this embodiment, the nut 53 is screwed, but it is not always necessary to adopt such a configuration.
For example, an inward flange having a female thread on the inner periphery may be formed at the upper end of the main body outer cylinder 42, and may be used instead. A display mechanism 55 is provided near the operation handle 44 of the main body outer cylinder 42 to display the degree of pressing of the units (the upper flange of the rubber ring) on the outer peripheral surface of the fluid pipe 36 with the movement of the pressing shaft 50. The display mechanism 55 is provided with a gear cover 56 formed below the outer cylinder 42 of the main body.
, And a pointer 58 provided on the handle shaft 45. Reference numeral 59 denotes a rotation stop bolt provided on the main body outer cylinder 42, the tip of which is engaged with a vertical guide groove 54 formed on the outer periphery of the fixed support column 40 to prevent the main body outer cylinder 42 from rotating with respect to the fixed support column 40. It is supposed to.

The units held by the expanded holding portion 51 of the pressing shaft 50 are as shown in FIG. That is, both are fitted to the outer periphery of the main shaft 8 and then the lower body 60 in which the upper half is fitted to the expanded holding portion 51, and a male screw 61 formed on the outer periphery of the lower end of the lower body. A cap nut 62 attached together,
A cylindrical fitting 65 having an upper end flange 64 held by the cap nut via a gasket 63 and hanging down, an upper end slightly fitted to the lower end of the cylindrical fitting, and an annular projection 66 provided at the lower end are provided. And a rubber ring 67 fitted in the annular groove 23.

The operation mechanism section 32 includes a cylindrical bearing case 70 having an upper end opening and installed on the main body outer cylinder 42 as shown in FIG. Case 70 has an outward flange at the upper end
A hole 72 through which the main shaft 8 is inserted is formed at the center of the bottom, and an annular extension 73 extending downward from the outer periphery of the bottom is provided. An internal thread is formed on the inner peripheral surface of the extension 73, and is formed on the outer peripheral surface of the upper end of the outer cylinder 42 via the nut 53 between the lower surface of the bottom of the case 70 and the upper end of the outer cylinder 42. Screwed to the screw. In the case 70, a thrust bearing 77 having a hole 76 through which the main shaft 8 is inserted at the center is stored with its upper end protruding slightly above the case 70. The thrust bearing 77 is for reducing the rotational resistance of the main shaft 8 at the time of expanding the diameter. Case
On the thrust bearing 77 projecting from 70, a female spindle member 80 for screwing with a male screw 78 formed on the upper outer periphery of the spindle 8 of the diameter-expanding jig 2 is mounted. Female thread for spindle
Below the 80 is an auxiliary ring 81 with the upper end flange 71 of the case 70
And is attached with a bolt nut 82.

Reference numeral 85 denotes an engagement piece, one end of which is pivotally supported on the outer periphery of the main shaft female screw member 80 by a pin 69. The engagement recess formed by notching the upper end flange 71 of the case 70 is cut out. At the location 79 and the engagement recess 86 formed by cutting out the outer periphery of the auxiliary ring 81. A vertical key groove is formed in the external thread 78 of the main shaft 8 from the upper end of the shaft, and a key fitted into the key groove is formed.
Operation handle 90 via 87 and lock nut 88, nut 89
Are screwed together. At the lower part of the handle 90, there is provided an engagement recess 91 with which the other end of the engagement piece 85 is engaged. In FIG. 1, reference numeral 93 denotes a nut screwed on a male screw formed on the upper part of the movable shaft 10, and reference numeral 95 denotes a marking scale provided on the outer peripheral surface of the main shaft 8 for confirming the amount of diameter expansion.

The operation of the above embodiment will be described. First,
As in the conventional case, a base 37 of a boring machine (not shown) is attached to the fluid pipe 36, and the fluid pipe 36 is bored to form a branch port 97. After forming the branch port 97, the drilling jig of the drilling machine is connected to the valve shown in FIG.
After lifting up to above 98, the valve is closed and the drilling machine is removed from the base 37.

As shown in FIG. 4, the tubular metal fitting 65 and the gasket 63 are deposited in the upwardly facing cap nut 62, and the lower body 60 is screwed into the cap nut 62 and tightened to connect the lower body 60, the cap nut 62 and the cylindrical fitting 65. In a state where the main body outer cylinder 42 is raised with respect to the fixed support 40,
The lower body 60 is inserted from the lower end of the main shaft 8, the upper half of the lower body 60 is stored in the expanded holding portion 51 at the lower end of the pressing shaft 50, and the rubber ring 67 is inserted from the lower end of the main shaft 8, and the cylindrical fitting 65 is inserted. The upper end guide portion of the rubber ring 67 is inserted into the lower end of the rubber ring 67, and the inward annular projection 66 of the rubber ring 67 is deposited in the annular groove 23 of the diameter increasing jig 2. By this deposit, the lower trunk 60 can be kept in the state deposited in the holding portion 51.

As described above, the cap nut 38 of the fixed support column 40 with the units such as the cylindrical metal fitting 65 and the lower body 60 attached to the lower end of the main shaft 8 of the large-diameter jig 2 is attached to the upper portion of the base 37. The gasket 39 is screwed and attached via the lower flange of the fixed column 40. At this time, the rubber ring 67 is located above the closed valve 98.

Next, the engaging piece 85 attached to the female screw member 80 for the main shaft is turned down, and the engaging concave portion of the flange 71 of the case 70 is lowered.
79 and the engagement recess 86 of the auxiliary ring 81 are engaged. As a result, the main shaft female screw member 80 is fixed to the main body outer cylinder 42 and the case 70, and does not rotate. After a while, base 37
The valve 98 is opened, the handle 44 is rotated, and the main body outer cylinder 42 is lowered with respect to the fixed support column 40. The pressing shaft 50, the main shaft 8 and the like are also lowered, and the rubber ring 67 is first placed at the branch port 97 of the fluid pipe 36. enter. At this time, most of the rubber ring 67 is inserted into the main shaft 8 and the annular projection 66 at the lower end is formed in the annular groove of the enlarged diameter head 11.
Since it is fitted to and firmly held by 23, its mounting is extremely stable, and there is no inconvenience that would be damaged as in the prior art. If it is further lowered, the upper end flange of the rubber ring 67 is pressed against the lower surface of the cap nut 62. A cover with this amount of pressure set in advance
Read by the scale of 56 and the pointer 58. This way,
The pressed amount of the rubber ring 67 can be made constant.

Next, the handle 90 attached to the main shaft 8 is rotated to lower the main shaft 8 to the lower limit (FIG. 1).
The movable shaft 10 is lowered by loosening the nut 93 screwed into the main shaft 8, and the enlarged diameter head portion 11 is projected downward from the storage recess 6 at the lower end of the main shaft 8 (FIGS. 3A → B). After protruding, this time the movable shaft 10
The movable shaft 10 is rotated by the knob 99 fixed to the upper end of the main shaft 8, the movable head 10 is turned upside down, the movable shaft 10 is pulled up, and the contact surface 20 of the large diameter head 11 is brought into contact with the lower end surface of the main shaft 8. And the locking surface 21 is locked to the locking surface 7 of the spindle 8 (FIG. 3).
B → C, FIG. 2B). After such locking is completed, the nut 93 is tightened against the upper end surface of the main shaft 8.

Next, when the main shaft 8 is raised by rotating the handle 90, the enlarged surface 18 of the diameter-enlarging roller 16 abuts against the lower end of the cylindrical metal member 65. The lower end of 65 gradually expands along the shape of the expanding surface of the expanding roller.
At the time of this diameter expansion, as shown in FIG.
Is in a setting state in which the main shaft 8 is in close contact with the main shaft 8 and is locked, so that the rigidity of the thick main shaft 8 is involved in the load applied to the movable shaft 10 by this abutment and locking.
The rigidity of the movable shaft 10 is significantly increased. The diameter expansion amount is confirmed on a marking scale 95 set on the spindle 8.

When the diameter expansion amount reaches the set value, the locking piece 85 is tilted upward as shown in FIG.
To be engaged. As a result, the handle 90, the female screw member 80 for the spindle and the spindle 8 are integrated, and when the handle 90 is rotated, the female screw member 80 for the spindle mounted on the thrust bearing 77 rotates in synchronization with the rotation of the handle 90. Since the main shaft 8 rotates horizontally without moving upward due to the synchronized rotation of the main shaft female screw member 80, the enlarged diameter portion of the cylindrical metal fitting 65 has a stepped portion caused by the pitch of the male screw in the main shaft 8 in the circumferential direction. Without inclination)
An enlarged diameter portion (surface) corresponding to the radius of the enlarged diameter surface 18 of the enlarged diameter roller 16 is obtained.

After the diameter is enlarged, the nut 93 is loosened to push down the movable shaft 10, and the movable shaft 10 is turned upside down. The movable shaft 10 is pulled up and the nut 93 is tightened. It is fixed in the state stored in. Then, the engaging piece 85 is disengaged from the engaging concave portion 91 of the handle 90 to be engaged, and is lowered downward.
79 and the engagement recess 86 of the auxiliary ring 81 are engaged.

Next, the handle 90 is rotated to raise the main shaft 8 to the upper limit. Further, the handle 44 is rotated to raise the outer cylinder 42 of the main body. That is, the pressing shaft 50 is raised up to the upper limit (the lower coaxial holding portion 51 is moved to a position above the valve 98) (at this time, the lower body 60 and the like remain below the valve 98, and the holding portion 51 of the pressing shaft 50 and the main shaft). 8 is located above the valve 98), and after closing the valve 98, the screwing of the cap nut 38 is removed with a jig (not shown), and the expanding jig 2 and the expanding member 3 are removed from the base 37. Remove.

FIG. 7 shows another modified example of the diameter increasing jig. This diameter increasing jig 2a does not have the diameter expanding head portion accommodating recess 6 as in the above-described embodiment, and the roller of the diameter expanding head portion 11a is not provided. Mounting part 13
A recess 9a in which a is fitted is provided, and a locking surface 7a similar to that of the above-described embodiment is provided on both sides of the recess. The shape of the enlarged diameter head portion 11a is the same as that of the above-described embodiment. In addition, the same reference numerals are added to the same reference numerals for other similar configurations, and the description thereof will be omitted. In the case of the diameter-expanding jig 2a, the same operation and effect as those of the above embodiment can be expected. In particular, the lower end cross section of the main shaft 8a in the diameter expanding jig 2a can be made larger than the cross section of the main shaft 8 of the embodiment described above, so that the rigidity of the movable shaft 10 at the time of expanding the diameter is further increased.

[0027]

The present invention is as described above. When the rubber ring is mounted on the outer periphery of the main shaft, it is formed inwardly at the lower end of the rubber ring on the outer periphery of the lower portion of the enlarged head portion which is concentric with the main shaft and does not move. An annular groove for mounting an annular projection is formed, so that the rubber ring can be attached to the lower part of the expanding jig in a stable state, and the rubber ring is not damaged when pressed into the branch opening of the rubber ring. Can be A flat locking surface is formed on the outer peripheral surface of the lower end portion of the main shaft, and the flat locking surface which closes and locks when the locking surface and the enlarged diameter head portion are at the eccentric position is enlarged. Since the movable shaft is formed on the outer peripheral surface of the head portion, the movable shaft has a large bending rigidity, can sufficiently tolerate the load at the time of diameter expansion, and can cope with inconveniences such as bending deformation of the diameter expansion jig. Moreover, apart from the vertical movement by the elevating mechanism by the operation mechanism, the spindle of the diameter-expanding jig is rotated to move up and down to expand the diameter, or the rotation of the spindle alone is performed so that the diameter is not moved up and down. Therefore, excellent effects can be expected, for example, in the final stage of the diameter expansion, a uniform diameter-enlarged surface with no steps can be obtained by a simple configuration.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view of a water faucet mounting device according to an embodiment of the present invention.

FIGS. 2A and 2B are perspective views of a partially enlarged jig, in which FIG. 2A is an exploded perspective view, and FIG. 2B is a perspective view of a state in which an enlarged diameter head portion is housed in a housing recess of a main shaft. .

FIGS. 3A and 3B are cross-sectional views of a lower part of a diameter-expanding jig, in which FIG. 3A is a cross-sectional view in which a diameter-expanding head is stored in a storage recess of a main shaft, and FIG. Sectional view of the state projected downward from the recess, (C) is a sectional view of the state of being stored in the storage recess of the main shaft after the diameter expansion head is inverted, (D) is the line A of (A)
FIG. 3E is a cross-sectional view along line B-B, FIG. 3E is a cross-sectional view along line CD in FIG. 3B, and FIG. 3F is a cross-sectional view along line EF in FIG.

FIG. 4 is a longitudinal sectional front view showing a state before a drilling machine such as a diameter-enlargement jig and a lifting mechanism is mounted on a base.

FIG. 5 is an enlarged perspective view of an operation mechanism.

FIG. 6 is a vertical sectional front view for explaining the operation.

FIG. 7 is a sectional view of a lower portion of another modification of the diameter increasing jig, and FIG.
Is a cross-sectional view of the state before the reversing head is turned over, (B) is a cross-sectional view of the state after the reversing head is turned over, and (C) is a line A in (A).
FIG. 4D is a cross-sectional view along the line B-B, and FIG. 4D is a cross-sectional view along the line CD in FIG.

FIG. 8 is a partial longitudinal sectional view of a conventional device.

FIG. 9 is a partial longitudinal sectional view of a conventional device.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 Mounting device 2 Diameter expanding jig 3 Diameter expanding member 5 Eccentric shaft hole 6 Diameter expanding head storage recess 7 Locking surface 8 Main shaft 10 Movable shaft 11 Diameter expanding head 13 Roller mounting portion 16 Diameter expanding roller 18 Diameter expanding surface 23 Annular groove 31 Lift mechanism 32 Operation mechanism 40 Fixed column 41 Rack 42 Main body outer cylinder 44 Operation handle 50 Pressing shaft 51 Expanding holding part 55 Display mechanism 60 Lower body 62 Cap nut 65 Cylindrical fitting 67 Rubber ring 70 Bearing Case 80 Female thread for main shaft 81 Auxiliary ring 85 Engagement piece 90 Operation handle 91 Engagement recess

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁶ , DB name) E03B 7/00 E03B 7/07 F16L 41/06

Claims (3)

(57) [Claims] A main shaft having a shaft hole whose upper and lower ends are open;
A water tap having a diameter increasing jig having a movable shaft vertically movably fitted in a shaft hole of the main shaft, and a diameter expanding member supporting the main shaft of the diameter expanding jig so as to be vertically movable. In the mounting device, a shaft hole of the main shaft of the diameter-expanding jig is formed as an eccentric shaft hole eccentric with respect to a center axis of the main shaft, and a lower end portion of the movable shaft fitted to the shaft hole protruding from the shaft hole. Is provided with a diameter-enlarged head portion formed to be substantially the same diameter as the main shaft.
An expanding roller is obliquely provided on the upper part, and an annular concave groove for mounting an inwardly formed annular projection on the lower end of the rubber ring is formed on the outer periphery of the lower part, and is concentric with the main shaft by the rotation of the movable shaft. Position and an eccentric position at which the diameter-enlarging roller is exposed to the outside, and a flat locking surface is formed on the outer peripheral surface at the lower end of the main shaft. When the eccentric position is reached, a flat locking surface that closes and locks is formed on the outer peripheral surface of the enlarged diameter head portion, and the enlarged diameter member moves up and down to move the main axis of the enlarged diameter jig up and down. In addition to the vertical movement by the lifting / lowering mechanism, there is provided a mechanism for rotating the main shaft of the diameter-enlargement jig to move up and down, and an operation mechanism having a mechanism for rotating the main shaft and not moving the main shaft up and down. A water faucet mounting device, characterized in that: 2. An elevating mechanism, comprising: a cylindrical fixed support column having upper and lower ends opened; and a lower end opening portion detachably fixed to a base fixed to the outer periphery of the fluid pipe; and an outer peripheral surface of the fixed support column. A body having a power transmission mechanism such as a gear meshing with a rack formed in the axial direction and an operating handle, fitted around the outer periphery of the fixed column, and movable in the axial direction along the outer periphery of the fixed column by the handle. The outer cylinder and the upper and lower ends are opened, and the lower end opening is formed in an expanded holding portion that holds units such as a cylindrical metal fitting and a rubber ring fitted to the outer periphery of the main shaft, and at the upper end outer periphery. A cylindrical pressing shaft that has an engaging portion that engages with the upper end of the main body outer cylinder, is fitted to the inner periphery of the fixed support, and moves integrally with the main body outer cylinder, and near an operation handle of the main body outer cylinder. And the pressing of the units against the outer peripheral surface of the fluid pipe due to the movement of the pressing shaft. 2. The water faucet mounting device according to claim 1, further comprising a display mechanism for displaying pressure. 3. The operating mechanism includes a bearing case mounted on the outer cylinder of the main body, a thrust bearing housed in the bearing case with an upper end projecting slightly above the case, and a thrust bearing. And a female screw member for a main shaft that is screwed with a male screw formed on an upper part of the main shaft of the diameter-enlargement jig, and is attached and engaged with an upper end flange of a case below the female screw member for the main shaft. An auxiliary ring, an engagement piece that is pivotally supported at one end on the outer periphery of the main shaft female screw member and engages with an engagement recess formed on the outer periphery of the upper end flange of the case; 3. The water tap mounting device according to claim 2, further comprising: an operating handle mounted on the main shaft above the main shaft female screw member, the engaging handle having an engaging recess with which the end is engaged.