CN2084145U - Self-locking type concentric reducer - Google Patents

Abstract

The utility model relates to a self-locking type reducing pipeline joint which belongs to a non-blocking water pipe joint used for connecting pipelines with different diameters. The utility model is mainly composed of a plug base, a casing and reducing tiles, wherein, the concentric tiles are added and reduced by adjusting the internal reducing tiles to be suitable for connecting pipelines with different diameters. The utility model replaces steel pipeline joint, and one pipe joint can be used for connecting pipelines with various diameters. The utility model has the advantages of convenient installation, convenient operation, low manufacturing cost and low using cost, and is especially suitable for connecting pipelines with different diameters for farmland irrigation, chemical plants, etc.

Description

Self-locking type concentric reducer

The utility model belongs to a kind of different-diameter pipeline connection pipe joint.

With during the pipeline of factory is connected, often running into needs the different-diameter pipeline is coupled together in field irrigation.For example aspect the farmland water-saving irrigation, being embedded in underground water-saving irrigation is set with the aqueduct specification, the pumping line model then has nothing in common with each other, if any 6 inches, 4 inches ... 2.5 therefore inches etc., have a connecting tube joint between water pump sebific duct and conduit pipe, also there is not approved product at present, that uses is steel structure, and the flange of burn-oning on steel pipe is inserted in the water pump sebific duct.A kind of water pump of model just needs a pipe joint, existing generally must join three joints, and price is just expensive like this, and the 2nd, install and bother, the 3rd, interpolation type blocks water.

The purpose of this utility model is to manufacture and design a kind of self-locking reduction nipple that do not block water, and to adapt to the requirement of various different-diameter pipeline conversion work, reduces user cost and reduces the trouble of changing pipe joint back and forth.

The utility model adopts overall plastic material, and internal structure mainly is made up of from lock slide (4) and reducing watt (5) grafting pedestal (1), shell (3), taper as shown in Figure 1.Fig. 3 is the schematic representation of grafting pedestal of the present utility model (1), and a thinner end is directly used in conduit pipe and is connected, and generally can peg graft in the thing and the quilt adapter road of coated with adhesive and so on joint.A thicker end has internal thread, in order to and shell (3) cooperate, the head end of shell (3) has outer silk.Shell (3) structure as shown in Figure 4, the end that its inwall has a screw thread has one section of 1/3-1/4 to be cylindrical shape approximately, remaining part is taper.Match with the tapering part of shell (3) inwall be a taper from lock slide (4), its tapering is identical with the outer casing inner wall tapering, about 15 °.Fig. 5 is the structural representation of taper from lock slide, Fig. 6 is the left view of Fig. 5, as can be seen from Figure 6, taper is two compositions along the center line symmetry from lock slide (4), its outer wall is taper, inwall is a cylindrical shape, has one to connect groove (6) in its bottom margin inboard, the effect of this groove be in order to the reducing watt cooperation of its inside.Structure such as Fig. 7, shown in Figure 8 of reducing watt, one boss (7) is arranged in the outside of its bottom margin, there is a groove (8) corresponding inboard, the effect of this boss is in order to watt to be connected from lock slide or reducing with the taper of its outside, this groove binding is watt to be connected in order to the reducing with its inside, by that analogy.Reducing of the present utility model watt can design the plurality of specifications model as required, connects with the pipeline that is suitable for 6 inches, 4 inches, 3 inches, 2 inches, 2.5 inches or the like different-diameters respectively.From Fig. 7, Fig. 8 as can be seen, each reducing is watt all by forming along two of center line symmetry.As can be seen from Figure 1, there is a boss in the outside of an innermost reducing watt bottom margin, and corresponding inboard no longer includes groove.In addition; because line clogging causes pump load excessive, and the accident that burns out motor takes place in order to prevent, can be at shell (3) near design one pipe protection valve mounting hole (2) on the casing wall of grafting pedestal (1); in order to the pipe laying Protective valve, break down to prevent water pump or pipeline.

Installation and application of the present utility model is: at first grafting pedestal and shell are separated, grafting pedestal strong bond is taken over an end in road to quilt, or on the irrigation aqueduct, according to the end in addition of being taken over the road or the size of water pump water outlet sebific duct, select the reducing watt of respective diameters, and the part that its inside is unnecessary is taken out, the water outlet sebific duct or the quilt that pipe joint are enclosed within water pump are taken on the road, add O-ring seal etc., it is screwed onto on the grafting pedestal then, gently draw several pipes down just can work.

Advantage of the present utility model is: (1) pipe joint can be used for the pipeline connection of the water pump and the different-diameter of multiple model, and is easy to install; (2) owing to adopt overall plastic material, so manufacture cost and user cost all are lower than the steel tube joint, (3) do not block water.The utility model is specially adapted to industry different-diameter pipelines such as field irrigation and chemical industry and connects use.

Embodiment: joint length overall 200mm; The plug external diameter 110mm of grafting pedestal, the long 30mm of grafting pedestal, tapering are 15 °; Reducing watt long 100mm; The internal diameter of required internal diameter and outer one deck reducing watt was determined when the thickness of every layer of reducing watt was done by the bricklayer of this layer reducing, was formulated as:

Reducing tilt sickness a=(d-c)/2

The outer one deck reducing watt internal diameter of d=

Required internal diameter during c=work

Description of drawings:

Fig. 1: the utility model structural representation

Fig. 2: Figure 1A-A is to sectional view

Fig. 3: grafting pedestal schematic representation

Fig. 4: shell schematic representation

Fig. 5: taper is from the lock slide schematic representation

The left view of Fig. 6: Fig. 5

Fig. 7: reducing watt schematic representation

The left view of Fig. 8: Fig. 7

1, grafting pedestal; 2, Protective valve mounting hole; 3, shell; 4, taper is from lock slide; 5, reducing watt; 6, connect groove; 7, boss; 8, connect groove.

Claims (3)

1, a kind of self-locking pipe joint is characterized in that: mainly be made up of from lock slide (4) and reducing watt (5) grafting pedestal (1), shell (3), taper; It is cylindrical shape that the inwall of shell (3) has 1/3-1/4 near an end of being with screw thread, and remaining part is taper; Taper is a cylindrical shape from lock slide (4) inwall, and outer wall is taper, and its tapering is identical with the outer casing inner wall tapering, has one to connect groove (6) in its feather edge inboard; Reducing watt has the boss except that innermost the feather edge outside, and remaining reducing is watt for the feather edge inboard has one to connect groove, and there is a boss in the corresponding outside, and taper is two symmetrical compositions from lock slide (4) and reducing watt (5).

2, pipe joint according to claim 1 is characterized in that: go up near grafting pedestal place at shell (3) and be provided with a pipe protection triple-use valve mounting hole.

3, according to claim 1,2 described pipe joints, it is characterized in that: above-mentioned all components is plastics and makes.

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