CN207921430U - A kind of simple type end valve for tube-in-tube pipeline - Google Patents

Abstract

The utility model belongs to valve pipe fitting technical field, refer in particular to a kind of simple type end valve for tube-in-tube pipeline, including hollow end valve valve B, the end valve liquid feeding end B for connecting tube-in-tube and the end valve outlet end B for connecting out liquid equipment are provided on the end valve valve B, it is coaxially arranged with corresponding end valve inner tube B in the end valve valve B, and is connected with each other by least one end valve dowel between end valve valve B inner wall and end valve inner tube B outer walls；The outlet end of the end valve inner tube B is against end valve outlet end B and is connected to end valve valve B inner cavity, and its internal diameter is less than the internal diameter of end valve inner tube B.The utility model goes out at liquid and connects the external equipments such as tap for being arranged in tube-in-tube pipeline, and in concatenated single tube tube-in-tube, the uneven problem of liquid equipment water outlet is done if can reduce.

Description

A kind of simple type end valve for tube-in-tube pipeline

Technical field

The utility model belongs to valve pipe fitting technical field, refers in particular to a kind of simple type end valve for tube-in-tube pipeline.

Background technology

In hot water water supply field, generally use old-fashioned single tube hot-water supply because it is easy for installation, at low cost the features such as it is deep Welcome by consumer, and slowly become industry installation specification and industry installation standard.But when single tube pipeline is long When, using a large amount of cold water needed before hot water in blowdown piping, cause to wait for the time of hot water long, and also result in big The water resource waste of amount.

With science and technology be constantly progressive, introduce the concept of hot water circulating pipeline in hot water water supply field, hot water return Need hot water feeding pipe, hot water return pipe and cold water pipe, three pipelines that the Quick water exit that can reach hot water is installed simultaneously in road And the purpose recycled.But three pipes are laid out in for a difficulty, cause that design difficulty is big, be constructed into The problems such as this height, big pipeline Raw Material Demand, development, which receives, a little to be hindered.

Between above-mentioned reason, the applicant devises single tube tube-in-tube hot water cyclesystem, and central principle is inner tube heat Water supply, outer tube return water.In order to facilitate external equipments such as its piping connection tap, showers, need to design a kind of end valve by two Person is attached.

Invention content

The purpose of this utility model is to provide a kind of simple in structure, facilitates connection external device and for tube-in-tube pipeline Simple type end valve can reduce the problem that each external equipment water outlet is uneven in tube-in-tube pipeline.

What the purpose of this utility model was realized in：

A kind of simple type end valve for tube-in-tube pipeline, including hollow end valve valve B are set on the end valve valve B It is equipped with the end valve liquid feeding end B for connecting tube-in-tube and the end valve outlet end B for connecting external equipment, the end valve valve B It is inside coaxially arranged with corresponding end valve inner tube B, and passes through at least one tail between end valve valve B inner wall and end valve inner tube B outer walls Valve dowel B is connected with each other；The outlet end of the end valve inner tube B is against end valve outlet end B and is connected to end valve valve B inner cavity, and Its internal diameter is less than the internal diameter of end valve inner tube B.

Preferably, the outlet end inner cavity of the end valve inner tube B is tapered opening.

Preferably, the connecting pins end valve inner tube B, which are tiltedly installed with, is oriented to mounting portion B.

Preferably, it is provided with inner tube limiting section B on the outer wall of the connecting pins end valve inner tube B.

Preferably, threaded portion either hot melt portion or clamping portion are provided on the end valve liquid feeding end B.

Preferably, it is provided with outer tube limiting section B on the inner wall of the end valve liquid feeding end B.

Preferably, the end valve valve B is through-type or bent tube type.

Preferably, the end valve outlet end B is provided with out liquid threaded portion.

Preferably, the end valve valve B, end valve inner tube B and end valve dowel B are integrally formed.

A kind of simple type end valve for tube-in-tube pipeline, including hollow triplet type end valve valve B, the threeway end valve Valve B includes for connecting the end valve liquid feeding end B of tube-in-tube, the end valve outlet end B for connecting external equipment and for connecting The end valve connecting pin B of next stage tube-in-tube is met, corresponding triplet type end valve inner tube B is coaxially arranged in the end valve valve B, and At least one end valve dowel B is provided between end valve valve B inner wall and end valve inner tube B outer walls；The end valve inner tube B's goes out liquid End is against end valve outlet end B, and its internal diameter is less than the internal diameter of end valve inner tube B.

The utility model is prominent and beneficial compared with prior art to be had the technical effect that：The utility model is for being arranged in pipe Pipe pipeline goes out at liquid and connects the external equipments such as tap, in concatenated single tube tube-in-tube, can reduce that subordinate is external to be set The uneven problem of standby water outlet.

Description of the drawings

Fig. 1 is the sectional view of the first embodiment of the utility model.

Fig. 2 is the installation sectional view of the first embodiment of the utility model.

Fig. 3 is the sectional view of second of embodiment of the utility model.

Fig. 4 is the installation sectional view of second of embodiment of the utility model.

Fig. 5 is the sectional view of the third embodiment of the utility model.

Fig. 6 is the installation sectional view of the third embodiment of the utility model.

Meaning represented by figure label：

1- tube-in-tubes；

3- external equipments；

101- end valve valve Bs；102- end valve liquid feeding ends B；104- end valve outlet ends B；106- is oriented to mounting portion B；In 107- Pipe limiting section B；108- outer tube limiting sections B；109- end valves connecting pin B；110- end valve inner tubes B.

Specific implementation mode

The utility model is further described with reference to specific embodiment：

Embodiment one：

As shown in Figs. 1-2：A kind of simple type end valve for tube-in-tube pipeline, including hollow end valve valve B 101, institute It includes that the end valve liquid feeding end B102 for connecting tube-in-tube 1 and the end valve for connecting external equipment 3 go out to state end valve valve B 101 Liquid end B104 is coaxially arranged with corresponding end valve inner tube B110, end valve inner tube B110 and end valve valve in the end valve valve B 101 The coaxial arrangement of body B101 facilitates installation.It is provided at least between 101 inner wall of end valve valve B and end valve inner tube B110 outer walls One end valve dowel B105, the quantity of the dowel 105 can be 2,3,4... and circumferentially uniformly distributed, facilitate end valve inner tube The fixation of B110.The outlet end of the end valve inner tube B110 is against end valve outlet end B104 and is connected to 101 inner cavity of end valve valve B, And the internal diameter of the outlet end of end valve inner tube B110 is less than the internal diameter of end valve inner tube B110.The utility model is for being arranged in tube-in-tube Pipeline goes out at liquid and connects the external equipments such as tap, in concatenated single tube tube-in-tube, can reduce subordinate's external equipment 3 It is discharged uneven problem.

Preferably, the outlet end inner cavity of the end valve inner tube B110 forms tapered opening, facilitates processing, it is possible to reduce interior The shunt volume of pipe ensures the liquid outlet quantity of subordinate's external equipment.

Preferably, the connecting pins end valve inner tube B110, which are tiltedly installed with, is oriented to mounting portion B106, is oriented to mounting portion B106 Generally ramp down angle, convenience are connected and fixed with tube-in-tube inner tube.

Preferably, inner tube limiting section B107, inner tube limiting section are provided on the outer wall of the connecting pins end valve inner tube B110 B107 is generally stage portion, facilitates positioning and installation.

Preferably, threaded portion either hot melt portion or clamping portion are provided on the end valve liquid feeding end B102.Shown in Fig. 2 Connection type be hot-melt adhesive paste, the utility model can be threadedly coupled or be clamped by nut.

Preferably, outer tube limiting section B108, outer tube limiting section B108 are provided on the inner wall of the end valve liquid feeding end B102 Generally stage portion facilitates positioning.

Preferably, the end valve valve B 101 is through-type, i.e. straight tube.

Preferably, the end valve outlet end B104 is provided with goes out liquid threaded portion for connect external equipment, it is described go out liquid Threaded portion can be that internal thread can also be external screw thread.

Preferably, the end valve valve B 101, end valve inner tube B110 and end valve dowel B105 are integrally formed.

Embodiment two：

As shown in Figure 3-4, the present embodiment is substantially similar to embodiment one, and difference is：

The end valve valve B 101 is bent tube type, generally right-angle elbow pipe or 45 degree of bend pipes, facilitates tap in pipeline The installation of equal external equipments 3.

Preferably, it is provided with outer tube limiting section B108 on the inner wall of the end valve liquid feeding end B102, facilitates tube-in-tube outer tube Installation.

Embodiment three：

As seen in figs. 5-6, the present embodiment is substantially similar to embodiment one, and difference is：

A kind of simple type end valve for tube-in-tube pipeline, including hollow triplet type end valve valve B 101, the threeway End valve valve B 101 includes for connecting the end valve liquid feeding end B102 of tube-in-tube 1, the end valve outlet end for connecting external equipment 3 B104 and end valve connecting pin B109 for connecting next stage tube-in-tube 1, is coaxially arranged in the end valve valve B 101 pair The triplet type end valve inner tube B110 answered, and it is provided at least one between 101 inner wall of end valve valve B and end valve inner tube B110 outer walls End valve dowel B105；The outlet end of the end valve inner tube B110 is against end valve outlet end B104, and its internal diameter is less than in end valve The internal diameter of pipe B110.

Principle：

The liquid feeding end of the utility model connects tube-in-tube pipeline, and hot water enters end valve inner tube B from the inner tube of tube-in-tube, because The bore of the inner tube of tube-in-tube and the relative aperture conventional tube of end valve inner tube B is small, and hot water can quickly be flowed out from inner tube, reach fast The effect of speed water outlet, prevents the waste of water resource.The tapered opening that hot water in tube-in-tube inner tube passes through end valve inner tube B outlet ends When, certain throttling action is played, the influence to subordinate's external equipment can be reduced, ensures the liquid outlet quantity of each external equipment.Together When, end valve inner tube B outlet ends are also connected to end valve body cavity, facilitate hot water return, increase the cyclic utilization rate of hot water.

The utility model coordinates low power circulating pump, is suitably applied in the small buildings such as the suite on shorter tube road, can To open constant temperature circulating in real time.

Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this It encloses, therefore：The equivalence changes that all structures, shape, principle according to the utility model are done, should all be covered by the protection of the utility model Within the scope of.

Claims (10)

1. a kind of simple type end valve for tube-in-tube pipeline, including hollow end valve valve B (101), it is characterised in that：It is described End valve liquid feeding end B (102) for connecting tube-in-tube (1) is provided on end valve valve B (101) and for connecting external equipment (3) end valve outlet end B (104), the end valve valve B (101) is interior to be coaxially arranged with corresponding end valve inner tube B (110), and tail It is connected with each other by least one end valve dowel B (105) between valve body B (101) inner walls and end valve inner tube B (110) outer wall； The outlet end of the end valve inner tube B (110) is against end valve outlet end B (104) and is connected to end valve valve B (101) inner cavity, and in it Diameter is less than the internal diameter of end valve inner tube B (110).

2. the simple type end valve according to claim 1 for tube-in-tube pipeline, it is characterised in that：The end valve inner tube B (110) outlet end inner cavity forms tapered opening.

3. the simple type end valve according to claim 1 or 2 for tube-in-tube pipeline, it is characterised in that：In the end valve Pipe B (110) connecting pin, which is tiltedly installed with, is oriented to mounting portion B (106).

4. the simple type end valve according to claim 3 for tube-in-tube pipeline, it is characterised in that：The end valve inner tube B (110) inner tube limiting section B (107) is provided on the outer wall of connecting pin.

5. the simple type end valve for tube-in-tube pipeline according to claim 1 or 2 or 4, it is characterised in that：The end valve Threaded portion either hot melt portion or clamping portion are provided on liquid feeding end B (102).

6. the simple type end valve according to claim 5 for tube-in-tube pipeline, it is characterised in that：The end valve liquid feeding end Outer tube limiting section B (108) is provided on the inner wall of B (102).

7. the simple type end valve for tube-in-tube pipeline according to claims 1 or 2 or 4 or 6, it is characterised in that：It is described End valve valve B (101) is through-type or bent tube type.

8. the simple type end valve according to claim 7 for tube-in-tube pipeline, it is characterised in that：The end valve outlet end B (104) is provided with out liquid threaded portion.

9. the simple type end valve according to claim 1 for tube-in-tube pipeline, it is characterised in that：The end valve valve B (101), end valve inner tube B (110) and end valve dowel B (105) are integrally formed.

10. a kind of simple type end valve for tube-in-tube pipeline, including hollow triplet type end valve valve B (101), feature exists In：The threeway end valve valve B (101) includes for connecting the end valve liquid feeding end B (102) of tube-in-tube (1), external for connecting The end valve outlet end B (104) of equipment (3) and end valve connecting pin B (109) for connecting next stage tube-in-tube (1), it is described It is coaxially arranged with corresponding triplet type end valve inner tube B (110), and end valve valve B (101) inner wall and tail in end valve valve B (101) It is provided at least one end valve dowel B (105) between valve inner tube B (110) outer wall；The outlet end of the end valve inner tube B (110) Against end valve outlet end B (104), and its internal diameter is less than the internal diameter of end valve inner tube B (110).