CN102359342B - Two-way joint for connecting pipe - Google Patents

Abstract

The invention discloses a two-way joint for connecting a pipe. The two-way joint comprises a nylon two-way joint body, wherein the nylon two-way joint body is provided with two sections of joints for connecting the pipe; two inner holes are formed in the two sections of joints and communicated with each other; an integral metal plate which can be directly pushed in through the inner holes is arranged in the nylon two-way joint body; and two ends of the integral metal plate extend to openings at ends of the two inner holes. The two-way joint for connecting the pipe has the advantages of simple structure, low cost and reliable connection strength, and is convenient to install.

Description

A kind of two pass joints for the tubing connection

Technical field

The present invention relates to the assembling fittings for the tubing connection, relate in particular to a kind of two pass joints for the tubing connection.

Background technology

Protective screening is a kind of common tubing completed knocked down products, its frame generally adopts tubing, tee junction and two pass joints to assemble, two sections adjacent frame places of protective screening connect with two pass joints usually, two pass joints of existing protective screening are to adopt nylon material to make mostly, two pass joint long term exposure of this material system will produce aging outside easily, will cause the disengaging of adjacent two sections frames when aging serious, make protective screening lose protective action, if will adopt the protective screening of this two pass joints as the forms protective screening, will have serious potential safety hazard so; Simultaneously, the two pass joint heat-resisting abilities that this material is made are poor, burnt to bake and be easy to soften, be out of shape even melt, the lawless person who understands this defective can destroy the protective screening that adopts this two pass joints very easily, and is very poor with its anti-theft feature of protective screening that this square joint is made.In order to solve the problem of the two pass joints existence that has the nylon material making now, metal material or other novel two pass joints anti-aging, that exotic material is made have appearred adopting in the market, although this two pass joints are difficult for aging, and refractoriness is good, but its poor toughness, when being used as the frame connection of protective screening, frame is easily loosening, and this class material all is precious materials, has increased the cost of production of two pass joints and protective screening, and inconvenience is widely applied in the middle of the protective screening generation.

Notification number is that the Chinese patent literature of CN201818222U discloses a kind of two pass joints for the tubing connection, comprise nylon two pass joint bodies, nylon two pass joint bodies are provided with two sections joints that are used for the frame of connection protective screening, two sections joints are respectively equipped with an endoporus, two endoporus are interconnected, each endoporus all inserts a metal sheet, and two metal sheets are fastenedly connected.This protective screening two pass joints, after nylon was partly aging, the frame of protective screening still connected by two metal sheets, avoided the frame of adjacent protective screening to break away from, and had greatly improved the connection reliability of the frame of protective screening; Burnt roasting and after softening, melting, metal sheet still is not affected to the connection of the frame of protective screening when nylon part, make the protective screening can be not destroyed easily, strengthened anti-theft capability; Have the toughness the same with common nylon two pass joints, make the connection of frame of protective screening fastening reliable, the phenomenon that can not occur becoming flexible.But its two metal sheets connect by securing member, when producing distortion when there being metal sheet to be subjected to torsion, will affect the bonding strength of securing member, when this distortion occurs repeatedly, then might cause the Joint failure of securing member; When mounted, two metal sheets must connect by the securing member more than two, can prevent that so just metal sheet from producing relative rotation, and guarantee bonding strength, but this have increased human cost so that fitting operation is complicated, has reduced packaging efficiency.

Summary of the invention

The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provides a kind of simple in structure, easy for installation, with low cost, bonding strength to be used for reliably two pass joints that tubing connects.

For solving the problems of the technologies described above, the present invention by the following technical solutions:

A kind of two pass joints for the tubing connection, comprise nylon two pass joint bodies, described nylon two pass joint bodies are provided with two sections joints that are used for connecting described tubing, described two sections joints are respectively equipped with an endoporus, two endoporus are interconnected, be equiped with the monolithic metal sheet that can directly push from endoporus in the described nylon two pass joint bodies, the two ends of described monolithic metal sheet extend to respectively the open-ended place of two endoporus.

Described monolithic metal sheet comprises that two sections connecting portions and one section corner dodge section, and the two ends that corner is dodged section are located in described two coupling parts, and two connecting portions place respectively an endoporus, and extend to the open-ended place of endoporus.

Described two sections connecting portions all are connected with can be held in the endoporus inwall, and connecting portion can be pressed in the support division of endoporus inwall.

Described support division is located on the connecting portion near the open-ended end of endoporus.

The described corner section of dodging is linear or arc line shaped.

When the described corner section of dodging was linear, establishing interior hole width was S1, and interior hole length is S2, the length of two sections connecting portions is respectively L1 and L4, and support division length is L2, and the length that corner is dodged section is L3, the angle that corner is dodged between the connecting portion that section and length are L4 is θ, then has:

L2＝S1；

$\mathrm{<figure-callout\; id="3"\; label="L"\; filenames="HDA0000078512130000011.png"\; state="\{\{state\}\}">L</figure-callout>}3<\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000078512130000011.png"\; state="\{\{state\}\}">S</figure-callout>}1\&times;2\sqrt{2};$

$L4<\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000078512130000011.png"\; state="\{\{state\}\}">S</figure-callout>}1\&times;2\sqrt{2};$

L1+L3×【sin(180°-θ)】＝S2；

L4+L3×【cos(180°-θ)】＝S2；

And, S2≤L1+L2+L2/[tan (180 °-θ)], or S2≤L4+L2+L2/[cot (180 °-θ)].

When the described corner section of dodging was arc line shaped, establishing interior hole width was S1, and interior hole length is S2, and the length of two sections connecting portions is respectively L1 and L4, and support division length is L2, and the radius that corner is dodged section is R, then has:

L2＝S1；

$L4<\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000078512130000011.png"\; state="\{\{state\}\}">S</figure-callout>}1\&times;2\sqrt{2};$

S2＝L1+R；

And, when R＞S1, $\mathrm{<figure-callout\; id="2"\; label="S"\; filenames="HDA0000078512130000011.png,HDA0000078512130000021.png"\; state="\{\{state\}\}">S</figure-callout>}2\&le;\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="HDA0000078512130000011.png"\; state="\{\{state\}\}">L</figure-callout>}1+\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HDA0000078512130000011.png,HDA0000078512130000021.png"\; state="\{\{state\}\}">L</figure-callout>}2+\sqrt{R^2-{(R-S1)}^2};$ When R≤S1, S2≤L1+L2+R.

Compared with prior art, the invention has the advantages that:

Two pass joints for the tubing connection of the present invention, in nylon two pass joint bodies, be equiped with the monolithic metal sheet that can directly push from endoporus, when this two pass joint is used for the connection of protective screening tubing, can directly the endoporus of monolithic metal sheet from nylon two pass joint bodies be pushed, after pushing fully, the two ends of monolithic metal sheet extend to respectively the open-ended place of two endoporus, it is quick and easy for installation, in installation process, do not need to connect split type metal sheet by securing member, installation steps have greatly been simplified, saved the manpower and materials cost, and, eliminated split type metal sheet fully and the potential safety hazard that Joint failure brings might occur, safety further improves; When being connected with tubing, can tubing, nylon two pass joint bodies and monolithic metal sheet three be connected as a single entity by securing member, make it possess all advantages of existing nylon structure of steel pole two pass joints.

Description of drawings

Fig. 1 is the main sectional view of the embodiment of the invention 1;

Fig. 2 is with pack into the process schematic diagram of nylon two pass joint bodies of monolithic metal sheet among the embodiment 1;

Fig. 3 is the main sectional view of the embodiment of the invention 2;

Fig. 4 is with pack into the process schematic diagram of nylon two pass joint bodies of monolithic metal sheet among the embodiment 2.

Each label represents among the figure:

1, nylon two pass joint bodies; 2, tubing; 3, monolithic metal sheet; 11, joint; 12, endoporus; 31, connecting portion; 32, corner is dodged section; 33, support division.

The specific embodiment.

Fig. 1 is connected a kind of two pass joint embodiment for the tubing connection of the present invention with Fig. 2, this two pass joint comprises nylon two pass joint bodies 1, nylon two pass joint bodies 1 are provided with two sections joints 11 that are used for connecting tubing 2, two sections joints 11 are respectively equipped with an endoporus 12, two endoporus 12 are interconnected, be equiped with the monolithic metal sheet 3 that can directly push from endoporus 12 in the nylon two pass joint bodies 1, when this two pass joint is used for the connection of protective screening tubing 2, can directly the endoporus 12 of monolithic metal sheet 3 from nylon two pass joint bodies 1 be pushed, after pushing fully, the two ends of monolithic metal sheet 3 extend to respectively the open-ended place of two endoporus 12, it is quick and easy for installation, in installation process, do not need to connect split type metal sheet by securing member, greatly simplify installation steps, saved the manpower and materials cost, and, eliminated split type metal sheet fully and the potential safety hazard that Joint failure brings might occur, safety further improves; When being connected with tubing 2, can tubing 2, nylon two pass joint bodies 1 and monolithic metal sheet 3 threes be connected as a single entity by securing member, make it possess all advantages of existing nylon structure of steel pole two pass joints; The present invention also can be used for protective window, louvre and shelf and is connected the tubing of product to connect except can being used for protective screening.

In the present embodiment, monolithic metal sheet 3 comprises that two sections connecting portions 31 and one section corner dodge section 32, two connecting portions 31 are divided into the two ends that corner is dodged section 32, two connecting portions 31 place respectively an endoporus 12, and each connecting portion 31 all extends to the open-ended place of corresponding endoporus 12, is convenient to by securing member tubing 2, nylon two pass joint bodies 1 and monolithic metal sheet 3 threes are connected as a single entity when connecting tubing 2.

In the present embodiment, two sections connecting portions 31 all are connected with can be held in endoporus 12 inwalls, and connecting portion 31 can be pressed in the support division 33 of endoporus 12 inwalls, this support division 33 can form supporting to connecting portion 31 automatically, avoid connecting portion 31 generation deflections when squeezing into the securing member (such as self-tapping screw) that connects tubing 2, can improve installation effectiveness and the quality of protective screening.When connecting tubing 2, the operator can't see the position at support division 33 places clearly, and therefore, present embodiment is located on the connecting portion 31 support division 33 near endoporus 12 open-ended ends, be convenient to when mounted the position of support division 33 be estimated, destroy support division 33 when preventing mounting fastener.

Corner is dodged section 32 and is linear or arc line shaped, and the corner in the present embodiment is dodged section 32 and is linear.

If endoporus 12 width are S1, endoporus 12 length are S2, and the length of two sections connecting portions 31 is respectively L1 and L4, and support division 33 length are L2, and the length that corner is dodged section 32 is L3, and the angle that corner is dodged between the connecting portion 31 that section 32 and length are L4 is θ, then has:

L2＝S1；

$\mathrm{<figure-callout\; id="3"\; label="L"\; filenames="HDA0000078512130000011.png"\; state="\{\{state\}\}">L</figure-callout>}3<\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000078512130000011.png"\; state="\{\{state\}\}">S</figure-callout>}1\&times;2\sqrt{2};$

$L4<\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000078512130000011.png"\; state="\{\{state\}\}">S</figure-callout>}1\&times;2\sqrt{2};$

L1+L3×【sin(180°-θ)】＝S2；

L4+L3×【cos(180°-θ)】＝S2；

And, S2≤L1+L2+L2/[tan (180 °-θ)], or S2≤L4+L2+L2/[cot (180 °-θ)].

According to above formula the nylon two pass joint bodies 1 in the present embodiment and the size of monolithic metal sheet 3 are designed, can guarantee that monolithic metal sheet 3 can be smoothly carries out push-in type from the endoporus 12 of nylon two pass joint bodies 1 and installs, thereby simplification installation steps, improve installation effectiveness, cost uses manpower and material resources sparingly.

Fig. 3 is connected another kind of the present invention and is used for the two pass joint embodiment that tubing connects with Fig. 4, present embodiment and a upper embodiment are basic identical, and difference only is: corner is dodged section 32 and is arc line shaped.

If endoporus 12 width are S1, endoporus 12 length are S2, and the length of two sections connecting portions 31 is respectively L1 and L4, and support division 33 length are L2, and the radius that corner is dodged section 32 is R, then has:

L2＝S1；

$L4<\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000078512130000011.png"\; state="\{\{state\}\}">S</figure-callout>}1\&times;2\sqrt{2};$

S2＝L1+R；

And, when R＞S1, $\mathrm{<figure-callout\; id="2"\; label="S"\; filenames="HDA0000078512130000011.png,HDA0000078512130000021.png"\; state="\{\{state\}\}">S</figure-callout>}2\&le;\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="HDA0000078512130000011.png"\; state="\{\{state\}\}">L</figure-callout>}1+\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HDA0000078512130000011.png,HDA0000078512130000021.png"\; state="\{\{state\}\}">L</figure-callout>}2+\sqrt{R^2-{(R-S1)}^2};$ When R≤S1, S2≤L1+L2+R.

According to above formula the nylon two pass joint bodies 1 in the present embodiment and the size of monolithic metal sheet 3 are designed, can guarantee that monolithic metal sheet 3 can be smoothly carries out push-in type from the endoporus 12 of nylon two pass joint bodies 1 and installs, thereby simplification installation steps, improve installation effectiveness, cost uses manpower and material resources sparingly.

Above-mentioned is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.Although the present invention discloses as above with preferred embodiment, yet is not to limit the present invention.Any those of ordinary skill in the art in the situation that does not break away from the technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention, all should drop in the scope of technical solution of the present invention protection any simple modification, equivalent variations and modification that above embodiment does according to the technology of the present invention essence.

Claims (7)

1. one kind is used for two pass joints that tubing connects, comprise nylon two pass joint bodies (1), described nylon two pass joint bodies (1) are provided with two sections joints (11) that are used for connecting described tubing (2), described two sections joints (11) are respectively equipped with an endoporus (12), two endoporus (12) are interconnected, it is characterized in that: be equiped with the monolithic metal sheet (3) that can directly push from endoporus (12) in the described nylon two pass joint bodies (1), the two ends of described monolithic metal sheet (3) extend to respectively the open-ended place of two endoporus (12).

2. two pass joints that connect for tubing according to claim 1, it is characterized in that: described monolithic metal sheet (3) comprises that two sections connecting portions (31) and one section corner dodge section (32), described two connecting portions (31) are divided into the two ends that corner is dodged section (32), two connecting portions (31) place respectively an endoporus (12), and extend to the open-ended place of endoporus (12).

3. two pass joints that connect for tubing according to claim 2 is characterized in that: described two sections connecting portions (31) all are connected with can be held in endoporus (12) inwall, and connecting portion (31) can be pressed in the support division (33) of endoporus (12) inwall.

4. two pass joints that connect for tubing according to claim 3, it is characterized in that: it is upper near the open-ended end of endoporus (12) that described support division (33) is located at connecting portion (31).

5. according to claim 3 or 4 described two pass joints that connect for tubing, it is characterized in that: described corner is dodged section (32) and is linear or arc line shaped.

6. two pass joints that connect for tubing according to claim 5, it is characterized in that: when described corner is dodged section (32) for linear, if endoporus (12) width is S1, endoporus (12) length is S2, the length of two sections connecting portions (31) is respectively L1 and L4, and support division (33) length is L2, and the length that corner is dodged section (32) is L3, the angle that corner is dodged between the connecting portion (31) that section (32) and length are L4 is θ, then has:

L2＝S1；

$L3<S1\&times;2\sqrt{2};$

$L4<S1\&times;2\sqrt{2};$

L1+L3×【sin(180°-θ)】＝S2；

L4+L3×【cos(180°-θ)】＝S2；

And, S2≤L1+L2+L2/[tan (180 °-θ)], or S2≤L4+L2+L2/[cot (180 °-θ)].

7. two pass joints that connect for tubing according to claim 5, it is characterized in that: when described corner is dodged section (32) for arc line shaped, if endoporus (12) width is S1, endoporus (12) length is S2, the length of two sections connecting portions (31) is respectively L1 and L4, support division (33) length is L2, and the radius that corner is dodged section (32) is R, then has:

L2＝S1；

$L4<S1\&times;2\sqrt{2};$

S2＝L1+R；

And, when R＞S1, $S2\&le;L1+L2+\sqrt{R^2-{(R-S1)}^2};$ When R≤S1, S2≤L1+L2+R.

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