CN215596668U

CN215596668U - Pull pipe connecting structure

Info

Publication number: CN215596668U
Application number: CN202023101452.9U
Authority: CN
Inventors: 叶锦杰; 方元坤
Original assignee: Xiamen Apisi Intelligent Manufacturing System Co ltd
Current assignee: Xiamen Apisi Intelligent Manufacturing System Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2022-01-21
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses a drawing pipe connecting structure, which comprises a spherical joint, wherein the spherical head part of the spherical joint is connected with a horn joint, the inserting part of the spherical joint is in inserting fit with a pipe fitting, the drawing pipe connecting structure also comprises a connecting sleeve, one end of the connecting sleeve, which is close to the horn joint, is positioned at the periphery of the horn joint, and the connecting sleeve is additionally arranged on the structure, so that a groove between the spherical joint and the horn joint is blocked, and dirt hiding of the groove are avoided.

Description

Pull pipe connecting structure

Technical Field

The utility model relates to a drawing pipe connecting structure.

Background

The drawing faucet is used in our lives more and more commonly, and the existing drawing faucet mainly comprises a drawing head, a drawing pipe and the like. Referring to the attached drawings of the specification and fig. 1, the prior connecting structure of the pull tube and the pull head has the following problems: 1. a sunken area 100 is formed between the ball joint and the horn joint in the existing structure, so that dirt and dirt are easily stored and are difficult to clean after long-term use, the swinging flexibility of the ball head is influenced, and the use feeling of a customer is reduced; the sealing of the sealing ring can be seriously affected even, and the water leakage of the product is caused. 2. Due to the fixing requirement between the spherical joint and the drawing pipe, the fastening sleeve 200 can form a deformation recess 201, which affects the appearance.

Disclosure of Invention

In order to solve the above technical problems, an object of the present invention is to provide a connection protection structure for a pull tube.

The utility model is realized by the following technical scheme:

the utility model provides a pull pipe connection structure, includes spherical joint, spherical joint's bulb portion links with the horn joint, spherical joint's grafting portion and pipe fitting are pegged graft and are cooperated, still include a adapter sleeve, the one end that the adapter sleeve is close to the horn joint is located the periphery of horn joint.

In the embodiment of the utility model, the connecting sleeve is positioned on the periphery of the spherical joint; the connecting sleeve and the horn joint have an overlapping region on the axis of the pipe.

In the embodiment of the utility model, the inner periphery of the connecting sleeve is provided with a groove, and the outer periphery of the pipe fitting is provided with a convex block which can be matched and connected with the groove.

In the embodiment of the utility model, the connecting device also comprises a fixing sleeve, wherein the fixing sleeve connects the pipe fitting with the inserting part together, and is positioned on the inner periphery of the connecting sleeve.

In the embodiment of the utility model, the convex block is arranged on the spherical joint between the spherical head part and the inserting part, the convex block is in an annular shape, and the groove is an annular groove arranged on the inner periphery of the connecting sleeve.

In the embodiment of the utility model, the inner periphery of one end of the connecting sleeve, which is close to the horn joint, is provided with a lead-in area, and the lead-in area is provided with a lead-in inclined plane.

In the embodiment of the utility model, a transition area is arranged between the lead-in area and the groove, the inner diameter of the connecting sleeve positioned at the transition area is smaller than the outer diameter of the bump, and the outer diameter of the bump is not larger than the inner diameter of the connecting sleeve positioned at the groove.

In the embodiment of the utility model, the convex block is arranged on the periphery of the fixed sleeve, the convex block is in a ring shape, and the groove is an annular groove arranged on the inner periphery of the connecting sleeve.

In the embodiment of the utility model, the inner periphery of one end of the connecting sleeve, which is close to the horn joint, is provided with a lead-in area, the lead-in area is provided with a lead-in inclined plane, a transition area is arranged between the lead-in area and the groove, the transition area and the lead-in area are provided with step surfaces, and the spherical joint is provided with a stop block which can be matched with the step surfaces.

In the embodiment of the utility model, the inner diameter of the connecting sleeve at the transition region is smaller than the outer diameter of the bump, and the outer diameter of the bump is not larger than the inner diameter of the connecting sleeve at the groove.

The connection protection structure for the pull pipe has the following beneficial effects: 1. the new structure is added with a connecting sleeve, which blocks the depressed area between the spherical joint and the horn joint and avoids the dirt collection and the dirt collection of the depressed area. 2. The concave of the connecting sleeve is blocked synchronously, and the appearance is attractive. 3. Meanwhile, due to the conical structure on the periphery of the connecting sleeve, smooth transition is formed between the horn joint and the pipe body, and smooth returning of the pull pipe is facilitated.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic diagram of the prior art.

Fig. 2 is an exploded view of a first embodiment of the present invention.

Fig. 3 is a cross-sectional view of a first embodiment of the present invention.

Fig. 4 is an exploded view of a second embodiment of the present invention.

Fig. 5 is a sectional view of a second embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the utility model. In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used are interchangeable where appropriate, so that embodiments of the utility model described herein can be used in other ways than as illustrated herein or in one embodiment of the utility model, with reference to figures 2 and 3 of the accompanying drawings, a pull tube connection comprising a ball joint 10, the ball head 11 of which is coupled to a flare 20, the spigot 12 of which is in bayonet engagement with the tubing 30, and a coupling sleeve 40, one end of which, adjacent to the flare, is located at the periphery of the flare, which is tapered such that, in use, the coupling major opening faces the flare and the coupling minor opening faces the tubing, and the coupling major opening covers the recessed area between the ball joint and the flare to prevent fouling.

Referring to the attached figure 3 of the specification, the connecting sleeve is positioned on the periphery of the spherical joint; on the axis A of the pipe fitting, the connecting sleeve and the horn joint are provided with a superposition area B, so that a concave area between the spherical joint and the horn joint can be ensured to be covered.

Further, a groove 41 is formed in the inner periphery of the connecting sleeve, a protruding block 50 which can be connected with the groove in a matched mode is arranged on the outer periphery of the pipe fitting, and when the protruding block is clamped into the groove, the connecting sleeve and the whole body are installed.

Preferably, the connecting device further comprises a fixing sleeve 60, wherein the fixing sleeve connects the pipe fitting with the inserting part, and the fixing sleeve is positioned on the inner periphery of the connecting sleeve.

In the present embodiment, preferably: the convex block is arranged on the spherical joint between the spherical head part and the inserting part, the convex block is in an annular shape, and the groove is an annular groove arranged on the inner periphery of the connecting sleeve. The inner periphery of one end of the connecting sleeve, which is close to the horn joint, is provided with a lead-in area 42, and the lead-in area is provided with a lead-in inclined surface 43. A transition area 44 is arranged between the lead-in area and the groove, the inner diameter D1 of the connecting sleeve at the transition area is smaller than the outer diameter D3 of the bump, and the outer diameter D3 of the bump is not larger than the inner diameter D2 of the connecting sleeve at the groove.

In the embodiment, the pipe fitting and the fixed sleeve are connected together through the spherical joint, one end of the spherical joint is fixedly connected with the pipe fitting, and the other end of the spherical joint is connected with the horn joint; the middle part of the connecting sleeve is provided with a groove structure which is arranged on a convex block of the spherical joint, and the convex block is sleeved at the tail end of the fixed sleeve in a tight fit manner.

In the second embodiment of the present invention, referring to fig. 4 and 5 of the attached drawings of the specification, a connection structure of a pull pipe comprises a spherical joint 10, a ball head portion 11 of the spherical joint is connected with a horn joint 20, an insertion portion 12 of the spherical joint is in insertion fit with a pipe fitting 30, and the connection structure further comprises a connection sleeve 40, one end of the connection sleeve close to the horn joint is located on the periphery of the horn joint, the connection sleeve is conical, in use, a large opening of the connection sleeve faces the horn joint, a small opening of the connection sleeve faces the pipe fitting, and the large opening of the connection sleeve can cover a concave area between the spherical joint and the horn joint to prevent dirt collection and dirt.

Referring to the attached figure 5 of the specification, the connecting sleeve is positioned on the periphery of the spherical joint; on the axis A of the pipe fitting, the connecting sleeve and the horn joint are provided with a superposition area B, so that a concave area between the spherical joint and the horn joint can be ensured to be covered.

In the present embodiment, preferably: the lug is established in the periphery of fixed cover, the lug is the annular form, the recess is the annular groove who sets up at the adapter sleeve internal periphery. The inner periphery of the connecting sleeve, which is close to one end of the horn joint, is provided with a lead-in area 42, the lead-in area is provided with a lead-in inclined plane 43, a transition area 44 is arranged between the lead-in area and the groove, a step surface 45 is arranged between the transition area and the lead-in area, and a stop block 13 which can be matched with the step surface is arranged on the spherical joint. The inner diameter D1 of the connecting sleeve at the transition area is smaller than the outer diameter D3 of the bump, and the outer diameter D3 of the bump is not larger than the inner diameter D2 of the connecting sleeve at the groove.

In the embodiment, the hose and the fixed sleeve are connected together through the spherical joint, one end of the spherical joint is fixedly connected with the hose, and the other end of the spherical joint is connected with the horn joint; one end of the fixed sleeve, which is combined with the connecting sleeve, protrudes outwards to form a convex block with an arc-shaped curved surface; the middle part of the connecting sleeve is provided with a groove matched with the convex block, the connecting sleeve is sleeved at one end, away from the horn joint, of the fixed sleeve in a tight fit manner, the connecting sleeve is connected with the fixed sleeve in an interference fit manner.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a pull pipe connection structure, includes spherical joint, spherical joint's bulb portion links with the horn joint, the grafting portion and the pipe fitting grafting cooperation of spherical joint, its characterized in that still includes a adapter sleeve, the one end that the adapter sleeve is close to the horn joint is located the periphery of horn joint.

2. The pull tube connection structure according to claim 1, wherein the connection sleeve is located at the outer periphery of the ball joint; the connecting sleeve and the horn joint have an overlapping region on the axis of the pipe.

3. The connection structure of a drawing tube as claimed in claim 2, wherein the connection sleeve is provided with a groove on the inner circumference, and the tube is provided with a projection on the outer circumference for engaging with the groove.

4. The pull tube coupling structure according to claim 3, further comprising a fixing sleeve connecting the pipe member and the insertion part, the fixing sleeve being located on an inner periphery of the coupling sleeve.

5. A connection structure of a drawing tube according to any one of claims 3 to 4, wherein the projection is provided on the ball joint between the ball head portion and the insertion portion, the projection is in the shape of a ring, and the groove is an annular groove provided on the inner periphery of the connection sleeve.

6. The pull tube connection structure as claimed in claim 5, wherein the connection sleeve has a lead-in area provided on an inner circumference of an end thereof adjacent to the bell connector, the lead-in area being provided with a lead-in slope.

7. The connection structure of a drawing tube as claimed in claim 6, wherein a transition area is provided between the introduction area and the groove, the inner diameter of the connection sleeve at the transition area is smaller than the outer diameter of the projection, and the outer diameter of the projection is not larger than the inner diameter of the connection sleeve at the groove.

8. A pull tube connection according to any one of claims 3 to 4, wherein the projection is provided on the outer periphery of the fixing sleeve, the projection is ring-shaped, and the groove is a ring-shaped groove provided on the inner periphery of the connecting sleeve.

9. The connection structure of a drawing tube as claimed in claim 8, wherein the connection sleeve has a lead-in area on the inner circumference of the end near the trumpet connector, the lead-in area has a lead-in slope, a transition area is provided between the lead-in area and the groove, the transition area and the lead-in area have a step surface, and the ball connector has a stopper capable of matching with the step surface.

10. A pull tube coupling as claimed in claim 9, wherein the inner diameter of the coupling sleeve at the transition is smaller than the outer diameter of the projection, which is not larger than the inner diameter of the coupling sleeve at the recess.