CN206529855U

CN206529855U - A kind of improved overflow pipe

Info

Publication number: CN206529855U
Application number: CN201720154662.3U
Authority: CN
Inventors: 王志忠; 陈炳余; 王兴东
Original assignee: Xiamen R&T Plumbing Technology Co Ltd
Current assignee: Xiamen R&T Plumbing Technology Co Ltd
Priority date: 2017-02-21
Filing date: 2017-02-21
Publication date: 2017-09-29
Anticipated expiration: 2027-02-21

Abstract

The utility model is related to a kind of improved overflow pipe, overflow pipe includes straight length, the internal diameter of the water side of overflow pipe is big to form outwardly open flaring structure along the water (flow) direction gradual change in the overflow pipe, flaring structure is connected with straight length, by setting the flaring structure to improve the flooding velocity of overflow pipe to a certain extent, overflow capability is improved, the overflow pipe of the pipe with small pipe diameter made can also meet defined overflow capability requirement, cost-effective and space, design freedom is bigger.

Description

A kind of improved overflow pipe

Technical field

The utility model is related to a kind of improved overflow pipe structure.

Background technology

Current most of overflow pipes being arranged on cistern internal drainage valve are mostly simple straight tube structure, and overflow The overflow capability of pipe depends primarily on the pipe diameter size of overflow pipe, and for small water tank, Spatial General 6 R shared by overflow pipe by To limitation, the caliber of overflow pipe needs to set smaller, and the overflow capability of such overflow pipe, which is likely to occur, can not meet the feelings of requirement Condition, therefore, in order to meet the requirement of overflow capability, just it is necessary for overflow pipe when designing draining valve and reserves enough spaces, it is ensured that Its caliber is sufficiently large, but this can cause the waste in material cost and space so that the design limitations of each part are larger in water tank.

Utility model content

For above-mentioned technical problem, the purpose of this utility model, which is to provide, a kind of can improve the improved of overflow capability and overflow Flow tube.

To reach above-mentioned purpose, the technical solution of the utility model is：A kind of improved overflow pipe, the overflow pipe includes Straight length, the internal diameter of the water side of the overflow pipe is big to form outwardly open expansion along the water (flow) direction gradual change in the overflow pipe Mouth structure, the flaring structure is connected with the straight length.

It is preferred that, the external diameter of the flaring structure is consistent with the external diameter of the straight length of the overflow pipe, the overflow pipe The inwall of water side is by setting the chamfering with inclined-plane to form the flaring structure.

It is preferred that, the inclined-plane of the chamfering is to face directly or cambered surface.

It is preferred that, the straight length end connection one of the overflow pipe is arranged on the horn-like pipeline section of the water side of overflow pipe, The flaring structure is formed on the horn-like pipeline section.

It is preferred that, the flaring structure has a taper, and the range of taper is 10 ° -90 °.

It is preferred that, length of the flaring structure along the water (flow) direction in the overflow pipe is the 1/ of the overfall tube diameter Between 8~2.

It is preferred that, the overflow pipe is disposed longitudinally on the middle part of the draining valve of cistern or sidepiece.

The beneficial effects of the utility model are：The utility model by cause overflow pipe water side internal diameter along the overflow Water (flow) direction gradual change in pipe is big to form outwardly open flaring structure, so as to improve the overflow capability of overflow pipe so that small The overflow pipe of caliber can also meet defined overflow capability requirement, and cost-effective and space, design freedom is bigger.

Brief description of the drawings

Fig. 1 is the dimensional structure diagram of improved overflow pipe of the present utility model；

Fig. 2 is the three-dimensional semi-cutaway of improved overflow pipe of the present utility model；

Fig. 3 is the schematic diagram that overflow pipe of the present utility model is arranged on draining valve of the middle part provided with connecting tube.

Fig. 4 is that overflow pipe of the present utility model is arranged on the schematic diagram that middle part is not provided with the draining valve of connecting tube.

Embodiment

In order to illustrate more clearly of the technical scheme of the utility model embodiment, the utility model is entered below in conjunction with the accompanying drawings The explanation of one step, drawings in the following description are only some embodiments of the present utility model, for ordinary skill people For member, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.

As shown in figures 1 and 3, a kind of improved overflow pipe of the present utility model, overflow pipe 1 includes straight length, overflow pipe 1 Water side internal diameter it is big to form outwardly open flaring structure 10, enlarging knot along the water (flow) direction gradual change in the overflow pipe 1 Structure 10 is connected with straight length, that is, the internal diameter of flaring structure 10 is more than the internal diameter of the straight length of overflow pipe 1, so, overflow pipe 1 Straight length in current at the flaring structure 10 of the water side of overflow pipe 1 because passage section becomes big, produced at variable cross-section Low pressure, the low pressure will produce suction-operated to current, promote current to accelerate flowing toward the water side of overflow pipe 1, so as to improve excessive Flow velocity degree, improves the overflow capability of overflow pipe 1 so that the overflow pipe 1 of pipe with small pipe diameter can also meet defined overflow capability requirement, section About cost and space, design freedom are bigger.

The external diameter of the flaring structure 10 of the present embodiment is consistent with the external diameter of the straight length of overflow pipe 1, the water side of overflow pipe 1 Inwall by setting the chamfering with inclined-plane 20 to form flaring structure 10, the inclined-plane 20 of chamfering can be faced directly or cambered surface, no It is restricted.

Specifically, flaring structure 10 has a taper, range of taper is preferably 10 ° -90 °, more preferably 30 ° -60 °, can So that current are more smooth, the length of the flaring structure 10 along the water (flow) direction in overflow pipe 1 is preferably the diameter in overflow pipe 1 Between 1/8~2.

As shown in figure 3, overflow pipe 1 is the middle part for the draining valve 2 for being disposed longitudinally on cistern, the middle part of draining valve 2 is also The connecting tube 24 of one up/down perforation is set, and the bottom of connecting tube 24 connects the water-stop tray 21 of draining valve 2, top connection draining valve 2 Lifting rod 22, overflow pipe 1 insertion connecting tube 24 in and with connecting tube 24 seal be socketed, the bottom of the connecting tube 24 of the present embodiment Water-stop tray 21 is passed through from top to bottom, and the flaring structure 10 of the water side of overflow pipe 1 is inserted to the bottom of connecting tube 24, the flaring structure 10 can select on water-stop tray 21 positioned at draining valve 2 or lower section or concordant with the position of water-stop tray 21, particular location not by Limitation, as long as it is inserted to the bottom range of connecting tube 24, the bottom stream that the water that flaring structure 10 flows out can be through connecting tube 24 To the discharge outlet 23 of draining valve 2, or it is flowed directly to the discharge outlet 23 of draining valve 2.

Or, as shown in figure 4, the middle part of draining valve 2 can also be not provided with the connecting tube 24 of up/down perforation, but by overflow The bottom (water side) of pipe 1 is directly connected with the water-stop tray 21 of draining valve 2, the top of overflow pipe 1 and the lifting rod 22 of draining valve 2 Connection, that is, overflow pipe 1 here is used as connecting tube simultaneously, eliminates connecting tube 24, lifting rod 22 is drawn by overflow pipe 1 Dynamic water-stop tray 21 opens up the discharge outlet 23 of draining valve 2, now, and flaring structure 10 is under the water-stop tray 21 of draining valve 2 Side is simultaneously located in the discharge outlet 23 of draining valve 2, so can also realize that the utility model improves the purpose of the overflow capability of overflow pipe 1.

Certainly, except shown in Fig. 3 and Fig. 4, overflow pipe 1 can also select the sidepiece for being disposed longitudinally on draining valve 2 (not scheme Show), the overflow capability of improved overflow pipe 1 is not limited by the set location of overflow pipe 1.

Alternatively, it is also possible to be overflow pipe 1 straight length end connection one be arranged on overflow pipe 1 water side it is horn-like The flaring structure 10 is formed on pipeline section (not shown), horn-like pipeline section, now, the internal diameter and external diameter of flaring structure 10 are all higher than The external diameter of the straight length, is so also feasible.

Although specifically showing and describing the utility model with reference to preferred embodiment, those skilled in the art should This is understood, is not departing from the spirit and scope of the present utility model that appended claims are limited, in form and details On the utility model is made a variety of changes, be protection domain of the present utility model.

Claims

1. a kind of improved overflow pipe, it is characterised in that the overflow pipe includes straight length, the water side of the overflow pipe it is interior Footpath is big to form outwardly open flaring structure, the flaring structure and the straight tube along the water (flow) direction gradual change in the overflow pipe Section connection.

2. a kind of improved overflow pipe as claimed in claim 1, it is characterised in that the external diameter of the flaring structure overflows with described The external diameter of the straight length of flow tube is consistent, and the inwall of the water side of the overflow pipe is described to be formed by setting the chamfering with inclined-plane Flaring structure.

3. a kind of improved overflow pipe as claimed in claim 2, it is characterised in that the inclined-plane of the chamfering is to face directly or arc Face.

4. a kind of improved overflow pipe as claimed in claim 1, it is characterised in that the straight length end connection of the overflow pipe One is arranged on the horn-like pipeline section of the water side of overflow pipe, the horn-like pipeline section and forms the flaring structure.

5. a kind of improved overflow pipe as claimed in claim 1, it is characterised in that the flaring structure has a taper, institute Range of taper is stated for 10 ° -90 °.

6. a kind of improved overflow pipe as claimed in claim 1, it is characterised in that the flaring structure is along along the overflow pipe Water (flow) direction length between the 1/8~2 of the overfall tube diameter.

7. a kind of improved overflow pipe as claimed in claim 1, it is characterised in that the overflow pipe is disposed longitudinally on closestool water On the middle part of the draining valve of case or sidepiece.