CN205534706U - New elastic telescopic water hose kit and elastic telescopic water hose - Google Patents

Abstract

The utility model discloses a novel elastic telescopic water pipe kit and an elastic telescopic water pipe, wherein the kit includes: a hollow joint, one end of which has a threaded section; a hollow inner pipe sleeve, the outer wall of which has an annular convex The inner pipe sleeve abuts against the joint, and there is a limit ring near the end of the joint; the hollow fastening cap is overlaid on the inner pipe sleeve, and is threadedly matched with the threaded section of the joint, and the inner side of the fastening cap The wall has a positioning shoulder matched with the limit ring, and the inner side wall of the fastening cap and the annular protrusion form a pressing space. The cooperation of the limit ring and the positioning shoulder of the utility model makes the fastening cap no longer move axially with the annular protrusion after the fastening cap is rotated in place, so that the size of the pressing space is controllable and stable, and can effectively prevent the inner tube from being damaged Too much pressure leads to rupture and too little pressure on the inner tube causes water leakage.

Description

New elastic telescopic water hose kit and elastic telescopic water hose

technical field

The utility model relates to a water pipe, in particular to a novel elastic telescopic water pipe kit and an elastic telescopic water pipe.

Background technique

In the process of connecting two water pipes to each other through the water pipe joint, the water pipe joint must ensure the locking reliability of the joint. Among them, for hard water pipes, the water pipe joints can be locked by normal buckling; for soft elastic water pipes, because the pipe wall of the soft elastic water pipes has a certain degree of elasticity, when the water pipe joints are connected, they must pass It can be locked with strong buckle, but the long-term strong pressure on the locked part will cause the pipe wall to break, especially in high temperature environment, the pipe wall will become soft and crack frequently; The cloth cover will wrinkle during installation. If the cloth cover and the inner tube are locked at the same part, the locked part of the inner tube will inevitably be stressed unevenly and unstable. All kinds of existing joints are designed with reference to the traditional water pipe joints, and the contradictory relationship between the strong locking of the elastic water pipe and the bearing capacity of the inner pipe wall has not been well handled.

The main flaws are:

(1) The inner tube and the cloth cover are locked at the same part, which will inevitably lead to uncontrollable and unstable tube walls after the inner tube is locked, and may leak or be too tightly locked and the tube wall may rupture.

(2) There is no positioning measure for the sealing part of the buckled inner tube, which cannot ensure that the tube wall is at a reasonable value after the inner tube is locked, and the service life cannot be guaranteed.

Utility model content

Aiming at the above problems, the utility model overcomes at least one deficiency, and proposes a novel elastic telescopic water pipe kit and an elastic telescopic water pipe. The problem that the connection effect of the existing elastic telescopic water pipe set is unstable and the service life of the inner pipe is low is solved.

The technical scheme that the utility model takes is as follows:

A new type of elastic telescopic water hose kit, including:

a hollow joint with a threaded segment at one end;

A hollow inner pipe sleeve, the outer wall of the inner pipe sleeve has an annular protrusion, the inner pipe sleeve abuts against the joint, and an end adjacent to the joint has a limit ring;

A hollow fastening cap, which is overlaid on the inner pipe sleeve, and is threadedly matched with the threaded section of the joint. A pressing space is formed with the annular protrusion.

The elastic telescopic water pipe includes an elastic inner pipe. When the new elastic telescopic water pipe kit is installed, the inner pipe is overlaid on the inner pipe sleeve, and the end of the inner pipe is matched with the annular protrusion, and the fastening cap is rotated until the limit ring and the positioning When the shoulder abuts, the fastening cap and the threaded section no longer rotate relative to each other. At this time, the inner side wall of the fastening cap and the annular protrusion form a pressing space to hold the inner tube, because the cooperation between the limit ring and the positioning shoulder , so that after the fastening cap is rotated in place, it will no longer move axially with the inner tube sleeve, so that the size of the holding space is controllable and stable, which can effectively prevent the inner tube from being broken due to too much pressure and the inner tube from being too compressed. Minor problems causing water leaks.

Further, it also includes an outer pipe fixing head, one end of the outer pipe fixing head is used to connect the outer pipe of the elastic telescopic water pipe set, and the other end is relatively fixed to the fastening cap.

In practical application, the elastic stretchable water pipe may include an outer pipe made of non-elastic material, and the outer pipe may be wrinkled when the inner pipe shrinks.

The fixing head of the outer tube is overlaid on the fastening cap, and can be engaged with the fastening cap by clamping, threading, or through fasteners. This form of cooperation avoids the problems in the prior art that the inner tube and the outer tube fixed head are locked at the same part, resulting in uncontrollable and unstable tube wall after the inner tube is locked, and the problem of possible water leakage or too tight lock may cause the tube wall to rupture .

Further, the joint has a cylindrical fixing part, and the threaded section is located on the fixing part; the outer wall of the fixing part also has an annular installation groove for installing a sealing ring.

The sealing effect can be enhanced by setting the annular installation groove to prevent water leakage.

Further, the joint, the inner pipe sleeve and the fastening cap are coaxially arranged.

Further, the inner sidewall of the fastening cap includes a cylindrical first area away from the joint, and a frustum-shaped second area, and the small-diameter end of the second area is in contact with the first area; the The second area cooperates with the annular protrusion to form the pressing space.

The conical frustum-shaped second area can facilitate the fastening of the cap over the inner pipe sleeve and facilitate the formation of the pressing space.

The utility model also discloses an elastic telescopic water pipe, which includes a kit, and the kit is the novel elastic telescopic water pipe kit mentioned above.

Further, the elastic telescopic water pipe also includes an outer pipe and an elastic inner pipe arranged in the outer pipe.

The utility model also discloses another novel elastic telescopic water pipe kit, including:

hollow joints;

A hollow connecting piece installed on the joint, the connecting piece includes a columnar connecting part and a columnar insertion part, the outer diameter of the connecting part is larger than the outer diameter of the insertion part, and the connection part and the insertion part There is a step, and the outer wall of the socket part has an annular protrusion;

A hollow fastening cap is sheathed on the connecting piece and is threadedly matched with the outer side wall of the connecting part, the inner side wall of the fastening cap has a positioning shoulder matched with the step, the inner side wall of the fastening cap and the The annular protrusion constitutes a pressing space.

Further, it also includes an outer pipe fixing head, one end of the outer pipe fixing head is used to connect the outer pipe of the elastic telescopic water pipe set, and the other end is relatively fixed to the fastening cap.

Further, the outer side wall of the connecting part has an external thread matched with the fastening cap.

Further, the joint, the connecting piece and the fastening cap are coaxially arranged.

Further, the inner side wall of the fastening cap includes a cylindrical first area away from the joint, and a frustum-shaped second area, and the small-diameter end of the second area is in contact with the first area; the first area The second area cooperates with the annular protrusion to form the pressing space.

The utility model also discloses another elastic telescopic water pipe, which includes a kit; the kit is the second type of elastic telescopic water pipe kit mentioned above.

Further, the elastic telescopic water pipe also includes an outer pipe and an elastic inner pipe arranged in the outer pipe.

The beneficial effect of the utility model is: the cooperation of the limit ring and the positioning shoulder makes the fastening cap no longer move axially with the annular protrusion after the fastening cap is rotated in place, so that the size of the pressing space is controllable and stable, and can effectively Prevent the rupture caused by too much pressure on the inner tube and the water leakage caused by too little pressure on the inner tube.

Description of drawings:

Fig. 1 is the front view of the first embodiment of the utility model's new elastic telescopic water pipe kit;

Fig. 2 is A-A sectional view among Fig. 1;

Fig. 3 is an exploded view of the first embodiment of the utility model's new elastic telescopic water pipe kit;

Fig. 4 is the front view of the second embodiment of the utility model's new elastic telescopic water pipe kit;

Fig. 5 is B-B sectional view among Fig. 4;

Fig. 6 is an exploded view of the second embodiment of the new elastic telescopic water pipe kit of the present invention.

Each reference mark in the figure is:

1. Connector, 2. Fastening cap, 3. Inner pipe sleeve, 4. Outer pipe fixed head, 5. Thread section, 6. Fixed part, 7. Annular installation groove, 8. Limiting ring, 9. Positioning stop Shoulder, 10, second area, 11, annular protrusion, 12, pressing space, 13, first area, 14, connecting piece, 15, external thread, 16, connecting part, 17, step, 18, socket part .

detailed description:

Below in conjunction with each accompanying drawing, the utility model is described in detail.

Example 1

As shown in Figures 1 to 3, a new type of elastic telescopic water pipe kit includes:

A hollow joint 1 with a threaded section 5 at one end of the joint;

Hollow inner pipe sleeve 3, the outer wall of the inner pipe sleeve has an annular protrusion 11, the inner pipe sleeve 3 abuts against the joint 1, and the end adjacent to the joint has a stop ring 8;

The hollow fastening cap 2 is overlaid on the inner pipe sleeve column 3, and is threadedly matched with the threaded section 5 of the joint 1. The inner side wall of the fastening cap 2 has a positioning shoulder 9 that cooperates with the limit ring. The inner wall and the annular protrusion form a pressing space 12 .

The elastic telescopic water pipe includes an elastic inner pipe. When the new elastic telescopic water pipe kit is installed, the inner pipe is overlaid on the inner pipe sleeve, and the end of the inner pipe is matched with the annular protrusion, and the fastening cap is rotated until the limit ring and the positioning When the shoulder abuts, the fastening cap and the threaded section no longer rotate relative to each other. At this time, the inner side wall of the fastening cap and the annular protrusion form a holding space to hold the inner pipe.

In this embodiment, the new elastic telescopic water pipe kit also includes an outer pipe fixing head 4 , one end of the outer pipe fixing head 4 is used to connect the outer pipe of the elastic telescopic water pipe kit, and the other end is relatively fixed to the fastening cap 2 . In practical application, the elastic stretchable water pipe may include an outer pipe made of non-elastic material, and the outer pipe may be wrinkled when the inner pipe shrinks. The fixing head of the outer tube is overlaid on the fastening cap, and can be engaged with the fastening cap by clamping, threading, or through fasteners. This form of cooperation avoids the problems in the prior art that the inner tube and the outer tube fixed head are locked at the same part, resulting in uncontrollable and unstable tube wall after the inner tube is locked, and the problem of possible water leakage or too tight lock may cause the tube wall to rupture .

In this embodiment, the joint 1 has a columnar fixing portion 6 on which the threaded section 5 is located; the outer wall of the fixing portion 6 also has an annular installation groove 7 for installing a sealing ring. The sealing effect can be enhanced by setting the annular installation groove to prevent water leakage.

In this embodiment, the joint 1 , the inner tube sleeve 3 and the fastening cap 2 are coaxially arranged.

In this embodiment, the inner wall of the fastening cap 2 includes a cylindrical first area 13 away from the joint, and a conical frustum-shaped second area 10, the small-diameter end of the second area 10 is in contact with the first area 13; The second area 10 cooperates with the annular protrusion 11 to form a pressing space 12 . The conical frustum-shaped second area can facilitate the fastening of the cap sleeve on the inner pipe sleeve column, and facilitate the formation of a pressing space.

Due to the cooperation of the limit ring and the positioning shoulder, the new elastic telescopic water pipe kit of this embodiment makes the fastening cap no longer move axially with the inner pipe sleeve after the fastening cap is rotated in place, so that the size of the holding space is controllable and stable , It can effectively prevent the rupture caused by too much pressure on the inner tube and the water leakage caused by too little pressure on the inner tube.

This embodiment also discloses an elastic telescopic water pipe. The kit includes an outer pipe, an elastic inner pipe disposed inside the outer pipe, and the kit. The kit is the novel elastic telescopic water pipe kit mentioned in this embodiment.

Example 2

As shown in Figures 4-6, this embodiment discloses a new type of elastic telescopic water pipe kit, including:

Hollow connector 1;

A hollow connecting piece 14 is installed on the joint 1. The connecting piece 14 includes a columnar connecting portion 16 and a columnar inserting portion 18. The outer diameter of the connecting portion is larger than that of the inserting portion, and the connection portion and the inserting portion There is a step 17 between them, and the outer wall of the socket part 18 has an annular protrusion 11;

The hollow fastening cap 2 is sheathed on the connector 14 and is threadedly matched with the outer side wall of the connecting part. The inner side wall of the fastening cap 2 has a positioning shoulder 9 matched with the step. The protrusion 11 constitutes a pressing space 12 .

In this embodiment, the new elastic telescopic water pipe kit also includes an outer pipe fixing head 4 , one end of the outer pipe fixing head is used to connect the outer pipe of the elastic telescopic water pipe kit, and the other end is relatively fixed to the fastening cap 2 .

In this embodiment, the outer sidewall of the connecting part 14 has an external thread 15 matching with the fastening cap, and the inner sidewall of the fastening cap has an internal thread matching with the external thread 15 .

In this embodiment, the joint 1 , the connecting piece 14 and the fastening cap 2 are coaxially arranged.

In this embodiment, the inner wall of the fastening cap 2 includes a cylindrical first area 13 away from the joint 1 and a second area 10 in the shape of a conical frustum, and the small diameter end of the second area 10 is connected to the first area 13 Docking; the second area 10 cooperates with the annular protrusion 11 to form a pressing space 12 .

This embodiment also discloses an elastic telescopic water pipe, which includes an outer pipe, an elastic inner pipe disposed in the outer pipe, and a kit. The kit is the novel elastic telescopic water pipe kit mentioned in this embodiment.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the scope of patent protection of the present utility model. All equivalent structural transformations made by using the description of the utility model and the contents of the accompanying drawings are directly or indirectly used in other related applications. Technical fields are all included in the protection scope of the present utility model in the same way.

Claims (10)

1. a novel elastic stretches water pipe external member, it is characterised in that including:

The joint of hollow, one end of joint has thread segment；

The inner tube sleeve column of hollow, the lateral wall of inner tube sleeve column has annular protrusion, and inner tube sleeve column is with described Joint against, and the one end closing on joint has a spacing ring；

The fastening cap of hollow, is enclosed within outward on said inner tube sleeve column, and with the thread segment threaded engagement of joint, The madial wall of fastening cap has the location shoulder block coordinated with described spacing ring, the madial wall of fastening cap and institute State annular protrusion and constitute pressure holding space.

2. novel elastic as claimed in claim 1 stretches water pipe external member, it is characterised in that also wrap Including outer tube gland, described outer tube gland one end is used for connecting the outer tube of elastic telescopic water pipe external member, The other end is relatively fixed with described fastening cap.

3. novel elastic as claimed in claim 1 stretches water pipe external member, it is characterised in that described Joint has the fixed part of a column, and described thread segment is positioned on fixed part；The outside of described fixed part Wall also has the annular mounting groove for installing sealing ring.

4. novel elastic as claimed in claim 1 stretches water pipe external member, it is characterised in that described The madial wall of fastening cap includes the columned first area away from joint, and the second of taper mesa-shaped Region, the miner diameter end of described second area docks with described first area；Described second area is with described Annular protrusion coordinates, and constitutes described pressure holding space.

5. an elastic telescopic water pipe, it is characterised in that include that external member, described external member are that right is wanted The novel elastic described in 1～4 any one claims is asked to stretch water pipe external member.

6. a novel elastic stretches water pipe external member, it is characterised in that including:

The joint of hollow；

The connector of hollow, is arranged on described joint, and connector includes connecting portion and the post of column The Plug Division of shape, the external diameter of described connecting portion more than the external diameter of Plug Division, and connecting portion and Plug Division it Between there is a step, the lateral wall of described Plug Division has annular protrusion；

The fastening cap of hollow, is enclosed within outward on described connector, and with the lateral wall threaded engagement of connecting portion, The madial wall of fastening cap has the location shoulder block coordinated with described step, and the madial wall of fastening cap is with described Annular protrusion constitutes pressure holding space.

7. novel elastic as claimed in claim 6 stretches water pipe external member, it is characterised in that also wrap Including outer tube gland, described outer tube gland one end is used for connecting the outer tube of elastic telescopic water pipe external member, The other end is relatively fixed with described fastening cap.

8. novel elastic as claimed in claim 6 stretches water pipe external member, it is characterised in that described The lateral wall of connecting portion has the external screw thread coordinated with fastening cap.

9. novel elastic as claimed in claim 6 stretches water pipe external member, it is characterised in that described The madial wall of fastening cap includes the columned first area away from joint, and the second of taper mesa-shaped Region, and the miner diameter end of second area docks with described first area；Described second area and described ring Shape male cooperation, constitutes described pressure holding space.

10. an elastic telescopic water pipe, it is characterised in that include that external member, described external member are that right is wanted The novel elastic described in 6～9 any one claims is asked to stretch water pipe external member.