JP2007070994A - Dust-preventive cap for saddle snap tap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dust-preventive cap for a saddle snap tap which for example dust-prevents/protects a saddle snap tap which carries out piping for branching from water service piping or gas piping to a branch pipe and protects a corrosion resistant sleeve before being mounted on piping and enables the corrosion resistant sleeve to be mounted on a bored hole of the piping without soiling the corrosion resistant sleeve with earth or mud. <P>SOLUTION: The dust-preventive cap 14 covers opening parts of a branching part 3 or a mounting port 5 for a boring machine of the saddle snap tap 1. A shaft holding part 16 for holding the corrosion resistant sleeve is formed in an inner periphery of the cap main body 14 and an extension part 17 is formed by integrally extending a back side of the shaft holding cylinder 16. A top end part of an insertion tool 24 which is inserted into the corrosion resistant sleeve 18 can be protruded into a space 17a of the extension part 17 while the corrosion resistant sleeve 18 is mounted in the shaft holding cylinder 16. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a dust cap for a saddle water faucet for covering, for example, a branch portion of a saddle water faucet that branches from a water pipe, a gas pipe, or the like to a branch pipe, or an opening portion such as a perforator attachment port.

  For example, a saddle water faucet is used as a means for branching a water supply branch from a water supply pipe. Usually, a screw part is formed at a branch part of the saddle water faucet or an attachment port part of a punching machine, etc., and FIG. 10 of Japanese Patent Laid-Open No. 7-198886 (Patent Document 1) is provided to protect the screw part. As shown in FIG. 1, a polyethylene cap is attached as a packing material. This polyethylene cap is also called a dust-proof cap because it has a function of preventing dust and the like from entering the saddle water faucet that is a product during packing, storage, or transportation.

  By the way, when installing a saddle water faucet on a water pipe and piercing or branching the water pipe, attach a metal core to the perforation hole to ensure the water flow diameter, or attach a close core to the perforation hole. In order to prevent corrosion of the perforated hole, generally, the core is bundled with a saddle water faucet, and the packing method varies depending on the form of the core and the manufacturer.

As a conventional example, the core end is locked to the claw portion formed on the cap body, and this is held and attached to the saddle faucet in this state, or the elasticity of the resin core case is used to There is a method in which the core inserted in the case is held, and the core case is inserted and bundled from the drilling machine attachment port of the saddle faucet.
Japanese Unexamined Patent Publication No. 7-119886

  However, the conventional method described above has a screw part protection and dustproof function, and the core is held and packed by a claw part provided on the inner side of the cap, but the core is an insertion tool (stretcher head). When attaching to the core, it is necessary to remove the core from the cap once. At this time, soil and mud are often attached to the hands of the contractor. If the core is touched in this state, the soil or mud naturally adheres to the core, causing failure of core insertion or original anticorrosion. There was a risk of problems such as poor performance.

  In the conventional method described later, after attaching the core to the insertion tool together with the core case, the core case is removed from the insertion tool, so that the core is directly touched by the hand as in the conventional method described above. However, it is necessary to prepare a cap necessary for protecting the screw part and preventing dust, which increases costs. Also, it is temporarily assembled with the groove formed on the tip of the stainless steel core and the inner diameter protrusion of the resin sleeve, and when the stainless steel core is inserted into the drilling hole after being inserted into the insertion tool, the stainless steel core is pushed into the inner periphery of the resin sleeve In the method of using a core having a structure in which the diameter of the resin sleeve is expanded and the rubber sleeve on the outer periphery of the resin sleeve is in close contact with the perforated hole, if the stainless steel core is grasped and mounted when mounting on the insertion tool, the resin When the sleeve is pushed out by the insertion tool, the temporarily assembled state of the stainless steel core and the resin sleeve is released, and there is a problem that the normal insertion tool cannot be mounted.

  The present invention has been developed as a result of diligent research in view of the above circumstances, and the object of the present invention is, for example, a saddle water faucet that performs branch piping from a water pipe or a gas pipe to a branch pipe. To provide a dustproof cap for a saddle water faucet that can protect the anticorrosion sleeve before being attached to the pipe and can be attached to the perforated hole of the pipe without soiling the anticorrosion sleeve with dirt or mud. It is in.

  In order to achieve the above object, an invention according to claim 1 is a dustproof cap for covering an opening portion such as a branch portion of a saddle water faucet or a perforator attachment port, and an inner periphery of the cap main body. Is provided with a holding cylinder portion for holding the anticorrosion sleeve, the back side of the holding cylinder portion is integrally extended to form an extension portion, and the anticorrosion sleeve is inserted into the anticorrosion sleeve while being attached to the holding cylinder portion. This is a dust cap for a saddle water faucet in which the distal end portion of the inserted tool is provided so as to protrude into the space in the extended portion.

  According to a second aspect of the present invention, the anticorrosion sleeve is configured such that the lower end outer periphery of the metal tube is temporarily fixed and fitted to the upper end inner periphery of the resin tube having a flange on the upper end outer periphery, and the rubber tube is disposed on the outer peripheral surface of the resin tube. This is a dust cap for a saddle water faucet that is configured by fitting.

  According to a third aspect of the present invention, a locking claw is formed on the inner periphery of the opening end of the holding cylinder portion, and the upper end of the collar portion of the resin cylinder of the anticorrosion sleeve is locked to the locking claw, This is a dust cap for a saddle water faucet in which an anticorrosion sleeve is held.

  According to a fourth aspect of the present invention, there is provided a saddle water faucet in which the anticorrosion sleeve is held on the inner peripheral surface of the holding cylinder portion by an O-ring attached to the outer peripheral surface of the flange portion of the rubber tube or the resin cylinder of the anticorrosion sleeve. Dust-proof cap.

  According to a fifth aspect of the present invention, there is provided the dust cap according to the first aspect, wherein the holding cylinder portion is held with a corrosion prevention sleeve formed of a metal cylinder, an anticorrosion sleeve whose outer periphery is covered with a rubber layer, or the like. It is a dust cap for stoppers.

  The invention according to claim 6 is a dust cap for a saddle water faucet in which a reinforcing rib is provided on the outer peripheral surface of the cap body.

  According to the first aspect of the present invention, the dust cap for the saddle water faucet according to the present invention is attached to, for example, a branch part of the saddle water faucet or a perforator mounting opening, and the opening surface thereof is closed. And the outer peripheral surface of the branching unit and the drilling machine mounting port can be covered, so that the screw portion formed on the outer peripheral surface can be protected. Moreover, according to the present invention, when the anticorrosion sleeve is attached to the insertion tool, the anticorrosion sleeve can be directly attached to the insertion tool from the state where the anticorrosion sleeve is attached to the dust prevention cap. Can be provided. Thereby, there is no possibility that the anti-corrosion sleeve is soiled with soil or mud, the core anti-corrosion performance is exhibited, and there is no failure of core insertion due to adhesion of soil or mud. In addition, since it functions as a packaging material that protects the anti-corrosion sleeve before it is attached to the mains for water and gas, etc., the entire sleeve is protected by a dust-proof cap. The anti-corrosion sleeve will not be soiled with soil or mud even when placed on the top or the ground level of the excavation hole. Since these functions are constituted by one member, the cost can be greatly reduced as compared with the case where each function is performed by separate parts.

  According to the second aspect of the present invention, the metal cylinder (for example, made of stainless steel) and the resin cylinder (for example, made of polyethylene) in the temporarily assembled state do not come off and can be normally attached to the insertion tool. Moreover, by matching the direction of the anti-corrosion sleeve packed in the dust-proof cap with the direction of the anti-corrosion sleeve when inserting into the perforated hole drilled in the water pipe or the like, the anti-corrosion sleeve is once taken out of the case as in the past, This eliminates the trouble of reversing the direction of the sleeve and then attaching it to the insertion tool, and it is possible to dramatically improve workability and safety as compared with the conventional case.

  According to the invention which concerns on Claim 3, it is applicable to a metal core other than the contact | adherence core which consists of a resin cylinder + metal cylinder + rubber cylinder, for example.

  According to the invention which concerns on Claim 4, since it is a structure which hold | maintains an anticorrosion sleeve using an elastic force, manufacture of the said cap is easy and manufacture with low cost is implement | achieved.

  According to the invention of claim 5, it is possible to hold various anticorrosion sleeves according to the implementation, such as an anticorrosion sleeve formed of a metal cylinder, an anticorrosion sleeve having a metal cylinder coated with a rubber layer, or the like. .

  According to the invention which concerns on Claim 6, by providing the reinforcement rib in the outer peripheral surface of a cap main body, the whole cap becomes difficult to deform | transform and it can mount to an insertion tool easily.

  Hereinafter, embodiments of the dustproof cap according to the present invention will be described in detail with reference to the drawings. In addition, the saddle water faucet shown in this embodiment is an example, and the present invention is not limited to that form. 1 is a cross-sectional view showing a saddle water faucet equipped with a dustproof cap of the present invention, FIG. 2 is a half-sectional view showing the dustproof cap of the present invention, and FIG. 3 is a dustproof related to FIG. 4 is a plan view when the cap is viewed from the opening surface side, FIG. 4 is a partially enlarged sectional view showing a state in which the lower end of the metal cylinder is temporarily fixed to the upper end of the resin cylinder, and FIG. It is explanatory drawing which showed the attachment procedure.

  In the figure, reference numeral 1 denotes a saddle water faucet employed in the present embodiment. As shown in FIG. 1, the water faucet main body 2 has a cylindrical shape and a water supply branch portion 3 having a male screw 3a formed on the outer periphery of the connection end, and an insertion tool, a drilling machine and the like to be described later. Is provided with a perforator attachment port 5 covered with a cap nut 4, and is connected to a saddle portion 6 fixed to a water pipe P (or a gas pipe or the like) by a screw connection in this example. This is a structure for forming a flow path to (not). A water stop mechanism 7 is provided inside the water faucet body 2. The water stop mechanism 7 supports a ball 8 having a three-way port 8 a by a pair of ball sheets 9 and 10, and the ball 8 is rotatably provided by a stem 11. The ball sheets 9 and 10 are pressed against the ball 8 by the annular holding body 12, and the annular holding body 12 and the water pipe P are sealed in a liquid-tight manner by the annular saddle gasket 13.

  In the figure, 14 is a dustproof cap of the present invention. In this example, it is integrally formed of a resin such as polyethylene or polystyrene. The cap body 14 has a bottomed cylindrical shape that can be attached to and detached from the outer peripheral surface of the branch part 3 (or the perforator attachment port 5) of the water faucet body 2, as shown in FIGS. In this example, four protrusions 15 are formed on the inner peripheral surface so as to be in pressure contact with the outer peripheral surface of the branch portion 3 (or the punching machine attachment port 5). As shown in the present example, the protrusion is formed in a ring shape around the inner periphery of the cap body 14 as a female screw that is screwed into the male screw 3a of the branching part 3 in addition to the protruding part extending in the axial direction of the branching part 3. It may be reinforced. On the inner periphery of the cap body 14, a holding cylinder portion 16 for holding the anticorrosion sleeve is provided so as to protrude in the axial direction, and the extending portion 17 is formed by extending the back side of the holding cylinder portion 16 integrally. ing.

  In the figure, reference numeral 18 denotes an anti-corrosion sleeve, and a lower end outer periphery of a metal tube 21 (made of stainless steel in this example) is temporarily fixed to an upper end inner periphery of a resin tube 20 (made of polyethylene in this example) having a flange portion 19 on an upper end outer periphery. The rubber cylinder 22 is fitted on the outer peripheral surface of the resin cylinder 20. The anti-corrosion sleeve 18 shown in this example is in a temporarily assembled state in which the outer periphery of the lower end of the metal tube 21 is fitted to the inner periphery of the upper end of the resin tube 20 before being attached to the water pipe P (for example, at the time of shipment). Yes, specifically, as shown in FIG. 4, the protrusion 20a formed on the inner periphery of the upper end of the resin tube 20 is fitted into the groove 21a formed on the outer periphery of the lower end of the metal tube 21, thereby constituting a temporarily assembled state. is doing.

  A locking claw 16 a is formed on the inner periphery of the opening end of the holding cylinder portion 16. By locking the locking claw 16a to the flange upper end 19a of the resin cylinder 20, the corrosion protection sleeve 18 is held in the holding cylinder section 16 and the corrosion protection sleeve 18 in the temporarily assembled state is packed. . Although not shown, the anticorrosion sleeve 18 that has been installed in the perforated hole P1 constitutes an integral cylindrical body in which the metal cylinder 21, the resin cylinder 20, and the rubber cylinder 22 are sequentially stacked from the inside.

  Reinforcing ribs 23 are provided on the outer peripheral surface of the cap body 14. By forming the reinforcing rib 23, deformation of the entire cap is suppressed, and attachment to an insertion tool to be described later can be performed reliably. In this example, the reinforcing ribs 23 having triangular pieces are provided at six positions at equal intervals. However, this is an example, and it is preferable to adopt a shape, a number, or the like according to the implementation.

A stepped surface 14 b is provided on the inner peripheral surface of the holding cylinder portion 16 and at substantially the same plane position as the closing surface 14 a of the cap body 14. When the anticorrosion sleeve 18 is inserted into the holding cylinder part 16, the flange lower end 19b of the resin cylinder 20 is brought into contact with the stepped surface 14b. In this state, the flange upper end 19a of the resin cylinder 20 is brought into contact with the locking claw 16a. By being locked, the anticorrosion sleeve 18 is held in an appropriate position. Further, the stepped surface 14b functions so that a mounting operation to an insertion tool described later can be easily performed. That is, since the closing surface 14a of the cap body 14 is integrally connected to the outer periphery of the stepped surface 14b, when the anticorrosion sleeve 18 is attached to the insertion tool, the flange portion of the resin cylinder 20 pressed by the insertion tool. Even if the lower end 19b strongly contacts the stepped surface 14b, the stepped surface 14b is reinforced by the closing surface 14a of the cap body 14, so that the stepped surface 14b can hold the resin cylinder 20 without being deformed. it can.
The thickness of the holding cylinder part 16 on the side where the locking claw 16a is formed is slightly thinner than the holding cylinder part 16 on the side where the extending part 17 is formed, with the stepped surface 14b as a boundary. When attaching to and detaching from the dust cap main body 14, the outer peripheral portion of the tip of the resin tube 20 makes it easy to spread the inner peripheral portion of the tapered tip of the locking claw 16a.

Moreover, although the holding | maintenance cylinder part 16 is made into the cylindrical shape, as shown in FIG.2 and FIG.3, in the said thin part, the slit 16b is formed in two places (4 places in this form) facing at least an axial direction, By fragmenting the holding cylinder portion 16, when the anticorrosion sleeve 18 is attached to and detached from the dustproof cap, particularly when the anticorrosion sleeve 18 is taken out of the dustproof cap together with an insertion tool to be described later, the resin cylinder 20 and the metal cylinder in the anticorrosion sleeve 18 are used. In order to prevent the temporarily assembled state with 21 from being released, the holding cylinder portion 16 is expanded to make the holding force of the cap 14 and the sleeve 18 smaller than the fitting force between the resin cylinder 20 and the metal cylinder 21. Making it easy.
In this embodiment, the description has been given using the anticorrosion sleeve 18 including the polyethylene resin cylinder 20, the stainless steel metal cylinder 21, the rubber cylinder 22, and the like. The present invention can also be applied to a sleeve, an anticorrosion sleeve in which a rubber layer is coated on the outer periphery of a metal cylinder, and the like.

  Next, the operation of this embodiment will be described. The dustproof cap 14 of the present invention is attached to the branch part 3 (or the perforator attachment port 5) of the water faucet body 2. As a result, the opening surface of the branch part 3 is closed to prevent the entry of foreign matters such as dust, and at the same time, the outer periphery of the connection end of the branch part 3 is covered, so that the screw part 3a formed at this part is protected. Figured. Therefore, for example, when the saddle water faucet 1 is packed as a product, stored, or transported, an excellent dustproof function and protective function are exhibited. Further, since the anticorrosion sleeve 18 is stored in the water faucet body 2 in a state packed with the dust cap 14, there is no possibility that the anticorrosion sleeve 18 is lost during storage or transportation. In addition, the temporarily fixed state in which the outer periphery of the lower end of the metal tube 21 is fitted to the inner periphery of the upper end of the resin tube 20 can be reliably maintained.

  The anticorrosion sleeve 18 packed in the dust cap 14 is inserted into the cap main body 14 from the side of the resin cylinder 20 in the temporarily assembled state, and is in a state that coincides with the insertion direction when being attached to the perforation hole P1 of the water pipe P. It is packed. Therefore, as shown in FIG. 5A, the dust-proof cap 14 removed from the branch portion 3 is inserted into the stretcher head 24 as it is, with the opening surface facing the insertion tool 24 (hereinafter referred to as the stretcher head 24). Thus, the stretcher head 24 can be set without touching the anticorrosion sleeve 18 at all. That is, the anticorrosion sleeve 18 is directly attached to the stretcher head 24 from the state packed with the dust cap 14.

  As shown in FIG. 5B, in order to attach the anticorrosion sleeve 18 to the stretcher head 24, the dust cap 14 packed with the anticorrosion sleeve 18 may be inserted into the stretcher head 24. At this time, the holding cylinder portion 16 The extending portion 17 capable of receiving the stretcher head 24 inserted into the cap body 14 is provided, and the distal end portion of the stretcher head 24 can escape to the space 17 a of the extending portion 17. Thereby, sufficient insertion of the stretcher head 24 is enabled, and the attachment of the anticorrosion sleeve 18 to the stretcher head 24 is ensured. When the dust cap 14 is inserted into the stretcher head 24, the reinforcing ribs 23 provided on the outer peripheral surface of the dust cap 14 function to suppress deformation of the entire cap, so that the mounting operation is easy.

Further, by providing the stepped surface 14b on the inner peripheral surface of the holding cylinder portion 16 and substantially at the same plane position as the closing surface 14a of the cap body 14, the anticorrosion sleeve 18 can be inserted into the holding cylinder portion 16. The flange lower end 19b of the resin cylinder 20 is brought into contact with the stepped surface 14b. In this state, the flange upper end 19a of the resin cylinder 20 is locked to the locking claw 16a. Can be held in.
In this holding structure, the rubber cylinder 22 and the O-ring 26 are held by setting the inner circumference of the holding cylinder portion 16 to be larger than the outer circumference of the rubber cylinder 22 and the O-ring 26 fitted to the resin cylinder 20. Since it is not pressed by the cylinder part 16, a deformation | transformation of these components can be prevented.
In addition, the formation of the stepped surface 14b can suppress the deformation of the entire cap, and suppresses the deformation when inserted into the stretcher head 24, thereby facilitating the mounting operation to the stretcher head 24.

  When the attachment to the stretcher head 24 is completed, the tip-inward claw portion 20b provided at the lower end of the resin cylinder 20 is engaged with the engagement groove 24a formed in the stretcher head 24 to be in the attachment state. The mounting force between the stretcher head 24 and the anticorrosion sleeve 18 in this state is set to exceed the holding force of the dust cap 14 and the anticorrosion sleeve 18. In addition, when attaching to the stretcher head 24, for example, even if the dustproof cap 14 removed from the water faucet body 2 at the time of construction is placed on the road or on the ground surface of the excavation hole, the anticorrosion sleeve 18 is made of soil or mud. It won't get dirty.

  Next, as shown in FIG. 5C, when the dustproof cap 14 is pulled out from the stretcher head 24, the fitting force between the resin tube 20 and the metal tube 21 in the anticorrosion sleeve 18 is greater than the holding force of the cap 14 and the anticorrosion sleeve 18. Is set to be smaller than the mounting force of the stretcher head 24 and the anticorrosion sleeve 18, so that the anticorrosion sleeve 18 set on the stretcher head 24 in the temporarily assembled state appears. If this stretcher head 24 is inserted into the perforated hole P1 perforated in the water pipe P, the anticorrosion sleeve 18 can be mounted in the perforated hole P1 in an appropriate state. Accordingly, the anticorrosion sleeve 18 can be easily set on the stretcher head 24 without being soiled with dirt or mud, and the anticorrosion performance inherent to the anticorrosion sleeve is exhibited. Nor. Of course, the metal cylinder 21 and the resin cylinder 20 in the temporarily assembled state do not come off. Although not shown, the anticorrosion sleeve 18 that has been installed in the perforated hole P1 constitutes an integral cylindrical body in which the metal cylinder 21, the resin cylinder 20, and the rubber cylinder 22 are sequentially stacked from the inside. While ensuring a water flow diameter reliably, corrosion prevention of the perforated hole P1 can be aimed at.

  FIG. 6 is a sectional view showing another example of the dustproof protective cap of the present invention. In this embodiment, the same members as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof is omitted. In the above-described embodiment, the locking claw 16 a formed on the inner periphery of the opening end of the holding cylinder portion 16 is locked to the flange upper end 19 a of the resin cylinder 20, so that the anticorrosion sleeve 18 is held in the holding cylinder portion 16. However, the dust cap 25 shown in this embodiment is applied to the inner peripheral surface of the holding cylinder portion 16 by the elastic force of the O-ring 26 attached to the outer peripheral surface of the collar portion of the rubber tube 22 or the resin tube 20 of the anticorrosion sleeve 18. The anticorrosion sleeve 18 is held in position.

  FIG. 7 is a sectional view showing still another example of the dustproof cap of the present invention. In this embodiment, the same members as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof is omitted. As in the embodiment described above, the dust cap 27 of this embodiment is integrally formed of a resin such as polyethylene or polystyrene. The cap body 27 has a bottomed cylindrical shape that can be attached to and detached from the outer peripheral surface of the branch part 3 (or the perforator attachment port 5) of the water faucet body 2, and the branch part 3 (or In this example, four protrusions 15 are formed in pressure contact with the outer peripheral surface of the drilling machine mounting port 5). On the inner periphery of the cap body 27, a holding cylinder portion 28 for holding the anticorrosion sleeve is provided so as to protrude in the axial direction, and an extending portion 29 is formed by extending the back side of the holding cylinder portion 28 integrally. ing. The anticorrosion sleeve 18 is held on the inner peripheral surface of the holding cylinder portion 28 by an O-ring 26 attached to the outer peripheral surface of the collar portion of the rubber tube 22 or the resin tube 20 of the anticorrosion sleeve 18.

  Similar to the above-described embodiment, when the anticorrosion sleeve 18 is attached to the stretcher head 24, the dust cap 27 packed with the anticorrosion sleeve 18 may be inserted into the stretcher head 24. At this time, the holding cylinder portion 28 is disposed in the cap main body 27. The stretcher head 24 has an extending portion 29 that can receive the stretcher head 24, and the distal end portion of the stretcher head 24 can escape to the space 29 a of the extending portion 29, so that the stretcher head 24 can be fully inserted. This ensures that the anticorrosion sleeve 18 is securely attached to the stretcher head 24.

  A step surface 27a is provided on the inner peripheral surface of the holding cylinder portion 28. If the anticorrosion sleeve 18 is inserted into the holding cylinder portion 28, the flange lower end 19b of the resin tube 20 is brought into contact with the step surface 27a. Therefore, the anticorrosion sleeve 18 can be held at an appropriate position. In addition, the formation of the stepped surface 27a can suppress the deformation of the entire cap, and suppresses the deformation when inserted into the stretcher head 24, thereby facilitating the mounting operation to the stretcher head 24.

  Moreover, in this embodiment, when the cap main body 27 is attached to the water faucet main body 2, the entire holding cylinder portion 28 is accommodated in the branch portion 3. Thereby, the opening end surface of the dustproof cap 27 and the rear end surface of the anticorrosion sleeve 18 packed in the dustproof cap 27 can be substantially aligned, and the amount of protrusion can be reduced.

  The dust cap for the saddle water faucet of the present invention can protect and protect the saddle water faucet that branches off from the main pipe to the branch pipe, and can protect the anti-corrosion sleeve before being attached to the pipe. It can be provided in various fields as a dust-proof cap that can be installed in a perforated hole in a pipe without polluting the sleeve with dirt or mud.

It is sectional drawing which showed an example of the saddle water tap fitted with the dust cap which concerns on this invention. It is a half cut sectional view showing the dustproof cap concerning the present invention. It is a top view when the dust-proof cap which concerns on FIG. 2 is seen from the opening surface side. It is the elements on larger scale which show the state where the lower end of the metal cylinder was temporarily fixed and fitted to the upper end of the resin cylinder. It is explanatory drawing which showed the attachment procedure to a stretcher head. It is sectional drawing which showed the other example of the dustproof cap which concerns on this invention. It is sectional drawing which showed the further another example of the dust cap which concerns on this invention.

Explanation of symbols

1 Saddle water faucet 2 Water faucet body 3 Branch part 5 Drilling machine mounting port 14 Dust-proof cap (cap body)
DESCRIPTION OF SYMBOLS 16 Holding cylinder part 16a Locking claw 17 Extension part 17a Space 18 Anticorrosion sleeve 19 Gutter part 20 Resin cylinder 21 Metal cylinder 22 Rubber cylinder 23 Reinforcement rib 25 Dust-proof cap (cap body)
26 O-ring 27 Dust-proof cap (cap body)

Claims (6)

  A dust-proof cap for covering an opening part such as a branch part of a saddle water faucet or a drilling machine mounting port, and a holding cylinder part for holding an anti-corrosion sleeve is provided on the inner periphery of the cap body. The tip of the insertion tool inserted into the anti-corrosion sleeve can protrude into the space in the extension part with the anti-corrosion sleeve attached to the holding cylinder part. A dust cap for a saddle water faucet characterized by being provided in   The anticorrosion sleeve is configured by temporarily fitting and fitting a lower end outer periphery of a metal tube to an upper end inner periphery of a resin tube having a flange on an upper end outer periphery, and fitting a rubber tube on an outer peripheral surface of the resin tube. Item 2. A dust cap for a saddle water faucet according to item 1.   A locking claw is formed on the inner periphery of the opening end of the holding cylinder portion, and the upper end of the collar portion of the resin cylinder of the anticorrosion sleeve is locked to the locking claw so that the anticorrosion sleeve is held in the holding cylinder portion. Item 3. A dust cap for a saddle water faucet according to item 1 or 2.   The saddle water faucet according to claim 1 or 2, wherein the anti-corrosion sleeve is held on the inner peripheral surface of the holding cylinder portion by an O-ring attached to the outer peripheral surface of the collar portion of the rubber tube or the resin tube of the anti-corrosion sleeve. Dust-proof cap.   2. The dust cap for a saddle water faucet according to claim 1, wherein the holding cylinder portion is held with an anticorrosion sleeve formed of a metal cylinder, an anticorrosion sleeve whose outer periphery is covered with a rubber layer, or the like. The dust cap for a saddle water faucet according to any one of claims 1 to 5, wherein a reinforcing rib is provided on an outer peripheral surface of the cap body.

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