CN207246550U - One kind combination screw - Google Patents

Abstract

It the utility model is related to kitchenware and sanitary ware manufacturing technology field, and in particular to one kind combination screw, including outer tube and inner tube, the outer tube is interior to be equipped with the tube chamber to match with inner tube, and inner tube is placed in tube chamber；Said inner tube one end is equipped with water outlet, and the other end is equipped with water inlet；The outer tube is metal tube, and said inner tube is non-metallic pipe.Beneficial effect：The combination screw prevents water from being polluted be subject to metal by the inner tube in outer tube, and energy protection inner tube avoids damaging, and simple in structure easy to process, is easily installed dismounting, and cost is low.While solving the problems, such as that poor sealing, tube body loosen, it is ensured that the quality of drinking-water, environmental protection and healthy.

Description

One kind combination screw

Technical field

It the utility model is related to kitchenware and sanitary ware manufacturing technology field, and in particular to one kind combination screw.

Background technology

Tap is people's common water distribution, discharging device in daily life.General tap includes main body, main body Upper interface is equipped with outlet pipe, and water supply hose is connected below main body, and water inlet pipe is communicated to spool, so water inlet pipe is that the fire hose is nose heave The building block wanted.

The water inlet pipe being connected with water purifier generally uses hose, and hose is communicates directly to spool.Since water supply hose is one The flexible good parts of kind, cause itself to position, and produce and vibrate in the event of collision during use, can cause into water Hose is produced and rocked so that water supply hose is connected with spool gap occurs so that drainage occurs in tap, unconsciously Cause the waste of water resource.Simultaneously as surrounding environment causes there are electrical equipment, there are security risk.

Therefore, to solve the above problems, water inlet pipe is changed to the hard water pipe of metal material by people.Common water inlet pipe is Stainless steel tube or copper pipe, but either copper pipe or stainless steel tube, both costs are all higher and are difficult to.Later, Ren Menchang Stainless steel tube is replaced frequently with the irony water inlet pipe of low cost.People in use by these metal water inlet pipes directly with peace Outlet pipe connection loaded on water purifier.After long-time use, with iron corrosion reaction occurs for water, can cause the dirt of water quality in water pipe Dye.Therefore iron pipe is not only not environmentally.And health can be had an impact.

In conclusion now it is badly in need of a kind of health environment-friendly, and water inlet pipe easy to process and low cost.

The content of the invention

The purpose of this utility model be in order to solve the difficult processing of current water inlet pipe, not environmentally, it is of high cost the problem of, there is provided One kind combination screw.

In order to reach above-mentioned purpose of utility model, the utility model uses following technical scheme：

One kind combination screw, including outer tube and inner tube, the outer tube is interior to be equipped with the tube chamber to match with inner tube, and inner tube is placed in pipe Intracavitary；Said inner tube one end is equipped with water outlet, and the other end is equipped with water inlet；Said inner tube is non-metallic pipe；The outer tube is gold Belong to pipe, not only having avoided current and having been contacted with metal influences water quality, but also plays the role of protecting water pipe, and easy for installation, structure letter It is single.

Preferably, said inner tube is made of the tube head for being placed in intraluminal pipe shaft He being placed in outside outer tube；The pipe shaft and pipe Integrally formed, tube head is placed on pipe shaft, this ensure that current are not penetrated into the gap of inner tube and outer tube.

Preferably, supporting projections are set along bar wall edge on the outer tube, the tube head is put in supporting projections.

Preferably, circular cone is formed on the outer tube, the supporting projections are mutually connected with circular cone, circular cone side Just outer tube and exterior components are connected cooperation.

Preferably, pipe shaft is located at water inlet and is more than inner tube equipped with the installing port for being used to install water pipe, the bore of installing port Caliber.

Preferably, form the installation rivet holder that connects with water pipe between the installing port top edge and tube wall, anti-antipriming pipe into Arbitrarily slided after entering inner tube.

Preferably, the tube head is equipped with the tube wall palette of sealing ring, sealing ring and said inner tube, for preventing liquid Body is leaked into the gap between inner tube and outer tube.

Preferably, the tube head of said inner tube, which is equipped with, is used to installing the seal groove of the sealing ring, seal groove with it is described close Seal sealing coordinates, and prevents from departing from tube head during sealing ring loosening or use.

Preferably, the outer tube outer wall is equipped with the external screw thread for being used for installing exterior part, convenient to be installed to outer tube not Component or exterior parts are installed on outer tube.

Preferably, said inner tube is food grade plastic pipe, or the outer tube is copper pipe, both ensure that the beauty of outside firmly Property, and it is contaminated to pass water through inner tube, ensures environment protection health.

Preferably, the sealing ring is elastic component, can improve leakproofness.

Compared with prior art, beneficial effect is the utility model：The combination screw is by outer tube Pipe prevents water from being polluted be subject to metal, and energy protection inner tube avoids damaging, and simple in structure easy to process, is easily installed dismounting, And cost is low.The utility model solves the problems, such as that poor sealing, tube body loosen, while also assures that the quality of drinking-water, environmental protection Health again.

Brief description of the drawings

Fig. 1 is the structure diagram of the utility model；

In figure：1 outer tube, 2 inner tubes, 3 tube chambers, 4 water outlets, 5 water inlets, 6 pipe shafts, 7 tube heads, 8 supporting projections, 9 annular cones Face, 10 installing ports, 11 installation rivet holders, 12 sealing rings, 13 seal grooves, 14 external screw threads.

Embodiment

Explanation is further described to the technical solution of the utility model below by specific embodiment.

Embodiment：

As shown in Figure 1：One kind combination screw, including the outer tube 1 with strip and the inner tube 2 supporting with outer tube 1, outer tube 1 It is vertical to place.The tube chamber 3 to match with inner tube 2 is equipped with the outer tube 1, inner tube 2 is placed in tube chamber 3.The tube wall and tube chamber of inner tube 2 3 inner walls fit.

Said inner tube 2 by the pipe shaft 6 that is placed in tube chamber 3 and be placed in 1 upper end of outer tube tube head 7 it is integrally formed, the pipe of tube head 7 Wall than pipe shaft 6 thickness of pipe wall, tube head 7 by 6 upper end of pipe shaft cover, 7 bottom of tube head formed supporting surface.Water outlet is equipped with tube head 7 4,6 bottom of pipe shaft is equipped with water inlet 5, and water outlet 4 is connected with 5 straight line of water inlet, and current pass through tube chamber 3 from the bottom up.

6 bottom of pipe shaft is equipped with the installing port 10 for being used for installing water pipe, and the bore of installing port 10 is more than the caliber of inner tube 2.Institute The installation rivet holder 11 that formation connects with water pipe between 10 top edge of installing port and tube wall is stated, water pipe tube wall offsets with installation rivet holder 11 Touch, will not stretch in tube chamber 3, and convenient installation.

The tube head 7 is equipped with two O-ring seals 12 being arranged above and below, and sealing ring 12 is close on the tube wall of tube head 7.Institute State and cricoid seal groove 13 is offered on the tube head 7 of inner tube 2, sealing ring 12 is put into seal groove 13 and fixes, and prevents from coming off.Seal groove 13 coordinate with the sealing of sealing ring 12, prevent water from being leaked outward from tube head 7, leakproofness is guaranteed.

The sealing ring 12 is elastic ring, and seal groove 13 and exterior installed part mutually extrude, and are sufficient filling with hole.

1 upper end-face edge of outer tube is vertically arranged formed with supporting projections 8, supporting projections 8, and the tube head 7 is installed on branch Support in projection 8, whole inner tube 2 is fixed by pipe shaft 6, tube head 7 and the clamping of supporting projections 8.

Circular cone 9 is formed at 1 top of outer tube, and 8 bottom of supporting projections connects with 9 upper end of circular cone, annular What the conical surface 9 facilitated outer tube 1 and exterior components is connected cooperation.

1 outer wall of outer tube is equipped with the external screw thread 14 for being used for installing exterior part.

Said inner tube 2 is overall to be made of POM plastic, will not be caused water pollution because of direct contacting metal, be ensure that strong Kang Huanbao, and be hardly damaged by 1 protection inner tube 2 of outer tube made of copper, extend usage time.

The above is only the preferred embodiment of the utility model, it should be pointed out that：For the common skill of the art For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and Retouching also should be regarded as the scope of protection of the utility model.

Claims (10)

1. one kind combination screw, it is characterised in that including outer tube (1) and inner tube (2), be equipped with and inner tube (2) in the outer tube (1) The tube chamber (3) of matching, inner tube (2) are placed in tube chamber (3)；Said inner tube (2) is equipped with water outlet and water inlet (5)；The outer tube (1) it is metallic rod, said inner tube (2) is non-metallic pipe.

2. a kind of combination screw according to claim 1, it is characterised in that said inner tube (2) is by being placed in tube chamber (3) Pipe shaft (6) and be placed in outer tube (1) outside tube head (7) composition；The pipe shaft (6) and tube head (7) are integrally formed.

3. a kind of combination screw according to claim 2, it is characterised in that set on the outer tube (1) along bar wall edge Supporting projections (8), the tube head (7) are put in supporting projections (8).

4. a kind of combination screw according to claim 3, it is characterised in that outer tube (1) outer wall forms circular cone (9), the supporting projections (8) are mutually connected with circular cone (9).

5. a kind of combination screw according to Claims 2 or 3, it is characterised in that pipe shaft (6) is located at water inlet (5) place and sets The installing port (10) of installation water pipe is useful for, the bore of installing port (10) is more than the caliber of said inner tube (2).

A kind of 6. combination screw according to claim 5, it is characterised in that installing port (10) top edge and tube wall it Between form the installation rivet holder (11) that connects with water pipe.

7. a kind of combination screw according to Claims 2 or 3, it is characterised in that the tube head (7) is equipped with sealing ring (12), the sealing ring (12) and the tube wall palette of said inner tube (2).

8. a kind of combination screw according to claim 7, it is characterised in that the tube head of said inner tube, which is equipped with, to be used to install The seal groove (13) of the sealing ring (12), seal groove (13) coordinate with the sealing ring (12) sealing.

9. a kind of combination screw according to claim 1 or 2 or 3, it is characterised in that outer tube (1) outer wall is equipped with For installing the external screw thread (14) of exterior part.

A kind of 10. combination screw according to claim 1, it is characterised in that said inner tube (2) is food grade plastic pipe, Or the outer tube (1) is copper pipe.