CN201351782Y - Bellows joint - Google Patents
Bellows joint Download PDFInfo
- Publication number
- CN201351782Y CN201351782Y CNU2009201146062U CN200920114606U CN201351782Y CN 201351782 Y CN201351782 Y CN 201351782Y CN U2009201146062 U CNU2009201146062 U CN U2009201146062U CN 200920114606 U CN200920114606 U CN 200920114606U CN 201351782 Y CN201351782 Y CN 201351782Y
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- CN
- China
- Prior art keywords
- joint body
- afterbody
- bellows
- cutting ferrule
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a bellows joint which comprises a joint body (1) and a cutting sleeve (2). The joint body (1) is provided with a longitudinal jack (13) in which a bellows (3) can be inserted from back to front; the joint body (1) is divided into a head part (12) and a tail part (11) longitudinally; the cutting sleeve (2) is sheathed on the outer wall of the bellows (3); and the front part of the cutting sleeve (2) is contained in the longitudinal jack (13) at the tail part (11) of the joint body (1). The bellows joint is characterized in that the side wall of the cutting sleeve (2) is provided with a longitudinal opening gap (21) which penetrates from head to tail, thus leading the cross section of the cutting sleeve (2) to take the shape of 'C'; the inner wall of the cutting sleeve (2) is provided with ripples matched with the ripples on the outer wall of the bellows (3); the tail part of the cutting sleeve (2) is provided with an outward flange (22); a pushing part (4) which can push the cutting sleeve (2) forwards is in bolt connection with the tail part (11) of the joint body (1); and the inner wall of the tail part of the pushing part is provided with an inward flange (41) which pushes against the outward flange (22) at the tail part of the cutting sleeve (2). Compared with the prior art, the bellows joint has the advantages of convenient and fast installation in butting process, safety and reliability and low maintenance cost.
Description
Technical field
The utility model relates to a kind of pipe joint, particularly relates to a kind of corrugated pipe connector.
Background technique
The mode of conveying liquid such as gas appliances such as traditional connection LP gas cylinder, gas cylinder, gas cooker, water supply pipe, sewer pipeline and fire fighting equipment is: tighten with Drop-proof with galvanized wire by the rubber pipe binding and at the two ends of rubber pipe; There are many defectives in this Placement: install and transposing inconvenience, under bending state, block gas circuit or water route easily, the rubber pipe corrosion-resistant, easily aging, working life is short, gas leakage or water leakage phenomenon take place easily, just because of this, annually in all parts of the country can take place all that medium that above-mentioned reason causes are poisoned or explosive incident such as gas leakage.
For solving the safe and reliable connectivity problem of rubber pipe, " a kind of modified model metallic hose " that No. 01211062.0, " helical fissure metal hose connector " that No. 97225278.9, " plug-in type helical fissure metal hose connector ", the ZL that No. 97225276.2, our formerly Chinese utility model patent ZL and ZL discloses three kinds of main bodys has the soft connecting tube of helical fissure metal tube for processing weighing-appliance, and its two ends are welded with the thread connecting joint of metal; These three kinds relate to scheme and have adopted the corrugated metal tube body, have certain flexible can be arbitrarily crooked and can not bend, and it is convenient and reliable to be threaded, phenomenon such as can thoroughly stop gas leakage, choke, leak, reveal the accident potential that causes poisoning, explosive incident thereby show because of combustion gas, practical effect is fine.
But because in above-mentioned three kinds of technological schemes, the termination of corrugated flexible metal tube main body all must be welded with a metal joint, this just limits its length dimension, in case determine just can't change when dispatching from the factory, more can't carry out free cutting according to Len req at the scene.And existing various pipe joint all relates at metal tube, plastic tube or coincidence tube, and not seeing has specially at the corrugated flexible metal tube design.For this reason, our formerly Chinese utility model patent ZL200520013536.3 " a kind of rapid pipe joint that is used for corrugated flexible metal tube " discloses a kind of rapid pipe joint that can be used to free-hand connection corrugated flexible metal tube, this rapid pipe joint includes a joint body, it has one can hold the jack that corrugated flexible metal tube inserts from back to front, connect a sleeve at this jack internal thread, barrel forward end is connected with the clamping sleeve that a front end has closing in portion, and the jack of described joint body has interior omoplate to position that should the clamping sleeve front end, and omoplate is provided with a ring packing plain cushion in this.This technological scheme has solved the difficult problem of the elongated degree corrugated flexible metal tube of on-the-spot installation main body effectively, and rapid pipe joint is quite reliable with being connected of corrugated flexible metal tube main body, even exert oneself the drawing corrugated flexible metal tube, also be difficult to pull, and sealing effect is better; But, find that through practice the pipe joint of said structure needs sleeve and clamping sleeve, structure is comparatively complicated, and the installing engineering cost is bigger, and it is not very convenient installing.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of corrugated pipe connector simple in structure, easy for installation at above-mentioned prior art.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: this corrugated pipe connector includes
One joint body, this joint body has one can hold vertical jack that bellows inserts from back to front, and described joint body longitudinally is divided into head and afterbody, and wherein head is the outer joint that is used to connect outside miscellaneous part, and afterbody is the bellows joint that is used to connect bellows;
One cutting ferrule is set on the bellows outer wall, and the front portion of cutting ferrule is contained in vertical jack of afterbody of described joint body;
It is characterized in that:
Have the longitudinal opening slit of running through end to end on the sidewall of described cutting ferrule, thereby make the cross section of described cutting ferrule be the C type, the inwall of described cutting ferrule is provided with the ripple that matches with bellows outer wall ripple, and the afterbody of described cutting ferrule is provided with outward flange;
The afterbody of described joint body also is bolted with the projectile that described cutting ferrule can be pushed ahead, and this projectile afterbody inwall is provided with the inward flange that the outward flange with described cutting ferrule afterbody offsets.
Like this, when bellows is connected, owing to have the longitudinal opening slit of running through end to end on the sleeve perisporium, just can easily be enclosed within sleeve on the bellows, and then the bellows that will be with sleeve inserts in vertical jack of joint body, tighten projectile, whole docking operation is quick and easy for installation, safe and reliable.
Above-mentioned projectile can be a nut, and this nut has internal thread, has outside thread on the outer wall of described joint body afterbody, and this nut is screwed onto on the outer wall of described joint body afterbody.
Certainly, above-mentioned projectile can also have externally threaded sleeve pipe for one, and described joint body afterbody inwall has internal thread, and this casing pipe sleeve is located at outside the cutting ferrule afterbody, is threaded on the inwall of described joint body afterbody.
After bellows connects upper connection, in order to guarantee the sealing of fluid, the inwall of described joint body has step at afterbody and head interfaces position, and the internal diameter of afterbody is greater than the internal diameter of head, and the described step of described joint body inwall place is provided with a seal ring simultaneously.
What be highly profitable is, between the anterior outer wall of described cutting ferrule and the inwall of the afterbody of corresponding joint body for being threaded.
In order to dock with miscellaneous part, the head outer wall of described joint body is provided with outside thread.
Connect for convenience, the middle part of described joint body is the hexagon nut shape for the spanner clamping.
Compared with prior art, advantage of the present utility model is: by offering the longitudinal opening slit of running through end to end on the sleeve perisporium, can hug the ripple of outside diameter of bel sleeve lining setting, at the afterbody of the joint body projectile that cutting ferrule can be advanced forward that is spirally connected, like this, when bellows is connected, just on the bellows that sleeve easily can be enclosed within, and then the bellows that will be with sleeve inserts in vertical jack of joint body, tighten projectile, whole docking operation is quick and easy for installation, safe and reliable, and maintenance cost is low.
Description of drawings
Fig. 1 is the utility model embodiment one a structural representation;
Fig. 2 is the utility model embodiment one a sectional drawing;
Fig. 3 is the utility model embodiment two a structural representation;
Fig. 4 is the utility model embodiment three a structural representation;
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Embodiment one:
As illustrated in fig. 1 and 2, be an embodiment of the present utility model, include joint body 1, cutting ferrule 2, wherein joint body 1 has one and can hold vertical jack 12 that bellows 3 inserts from back to front, and joint body 1 longitudinally is divided into head 12 and afterbody 11, wherein head 12 is for being used to connect the outer joint of outside miscellaneous part, and afterbody 11 is for being used to connect the bellows joint of bellows; The inwall of joint body 1 has step 14 at afterbody 11 and head 12 interfaces positions, and the internal diameter of afterbody 11 is greater than the internal diameter of head 12, and step 14 places of joint body 1 inwall are provided with a seal ring 5 simultaneously.Cutting ferrule 2 is set on bellows 3 outer walls, have the longitudinal opening slit of running through end to end 21 on the sidewall of cutting ferrule 2, thereby the cross section that makes cutting ferrule 2 is the C type, the inwall of cutting ferrule 2 is provided with the ripple that matches with bellows 3 outer wall ripples, and the front portion of cutting ferrule 2 is contained in the bellows joint 11 of joint body 1, and the afterbody of cutting ferrule 2 is exposed at outward outside the bellows joint 11 of joint body 1, and the afterbody of cutting ferrule 2 is provided with outward flange 22.Also be bolted with the nut 4 that cutting ferrule 2 can be pushed ahead on afterbody 11 outer walls of joint body 1, these nut 4 afterbody inwalls are provided with the inward flange 41 that the outward flange 22 with cutting ferrule 2 afterbodys offsets.
During use, cutting ferrule 2 is set on the bellows 3, the bellows 3 that will be with cutting ferrule 2 then inserts in the afterbody 11 of joint body 1 from back to front, offset until the interior seal ring of bellows 3 with joint body, tightening nuts 4 then, sleeve 2 is pushed ahead and obtained the sealing effect of integral body, whole docking operation is quick and easy for installation, safe and reliable.
For the bellows 3 that is with protecting cover 31 outward, when connecting, its front end must be removed part protecting cover 31, the length of exposed portions serve is good just in time to insert in the joint body 1 until seal ring, like this, after connection, cutting ferrule 2 afterbodys can be pressed on the periphery of protecting cover 31 simultaneously, play seal action better.
Embodiment two:
Different with embodiment one is, the front portion of cutting ferrule 2 is by in the bellows joint 11 that is threaded in joint body 1, like this, in use, cutting ferrule 2 is set on the bellows 3, the bellows 3 that will be with cutting ferrule 2 then inserts in vertical jack of joint body 1 from back to front, because cutting ferrule 2 front threads are connected in the bellows joint 11 of joint body 1, at this moment joint body is quite reliable with being connected of bellows, even exert oneself the drawing bellows, also be difficult to pull, and sealing effect is better.And then tightening nuts 4, further advance cutting ferrule 2, offset until the interior seal ring of bellows 3 with joint body, at this moment, the sealing effect of whole corrugated pipe connector is better.
Embodiment three:
Different with embodiment one is, be bolted with the sleeve pipe 4 that cutting ferrule 2 can be pushed ahead on afterbody 11 inwalls of joint body 1, this sleeve pipe 4 has outside thread, and joint body 1 afterbody 11 inwalls have internal thread, sleeve pipe 4 is set in outside cutting ferrule 2 afterbodys, is threaded on the inwall of joint body 1 afterbody 11, and sleeve pipe afterbody inwall is provided with the inward flange 41 that the outward flange 22 with cutting ferrule 2 afterbodys offsets.
Claims (7)
1, a kind of corrugated pipe connector includes
One joint body (1), this joint body (1) has one can hold vertical jack (13) that bellows (3) inserts from back to front, and described joint body (1) longitudinally is divided into head (12) and afterbody (11), wherein head (12) is for being used to connect the outer joint of outside miscellaneous part, and afterbody (11) is for being used to connect the bellows joint of bellows;
One cutting ferrule (2) is set on bellows (3) outer wall, and the front portion of cutting ferrule (2) is contained in vertical jack (13) of afterbody (11) of described joint body (1);
It is characterized in that:
Have the longitudinal opening slit of running through end to end (21) on the sidewall of described cutting ferrule (2), thereby make the cross section of described cutting ferrule (2) be the C type, the inwall of described cutting ferrule (2) is provided with the ripple that matches with bellows (3) outer wall ripple, and the afterbody of described cutting ferrule (2) is provided with outward flange (22);
The afterbody (11) of described joint body (1) also is bolted with the projectile (4) that described cutting ferrule (2) can be pushed ahead, and this projectile afterbody inwall is provided with the inward flange (41) that the outward flange (22) with described cutting ferrule (2) afterbody offsets.
2, corrugated pipe connector according to claim 1, it is characterized in that: described projectile (4) is a nut, this nut has internal thread, has outside thread on the outer wall of described joint body (1) afterbody (11), and this nut is screwed onto on the outer wall of described joint body (1) afterbody (11).
3, corrugated pipe connector according to claim 1, it is characterized in that: described projectile (4) is one to have externally threaded sleeve pipe, described joint body (1) afterbody (11) inwall has internal thread, and this casing pipe sleeve is located at outside cutting ferrule (2) afterbody, is threaded on the inwall of described joint body (1) afterbody (11).
4, corrugated pipe connector according to claim 1, it is characterized in that: the inwall of described joint body (1) has step (14) at afterbody (11) and head (12) interfaces position, and the internal diameter of afterbody (11) is greater than the internal diameter of head (12), and the described step of described joint body (1) inwall (14) locates to be provided with a seal ring (5) simultaneously.
5, corrugated pipe connector according to claim 1 is characterized in that: between the inwall of the anterior outer wall of described cutting ferrule (2) and the afterbody (11) of corresponding joint body (1) for being threaded.
6, according to the described corrugated pipe connector of each claim in the claim 1～5, it is characterized in that: head (12) outer wall of described joint body (1) is provided with outside thread.
7, according to the described corrugated pipe connector of each claim in the claim 1～5, it is characterized in that: the middle part of described joint body (1) is the hexagon nut shape for the spanner clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201146062U CN201351782Y (en) | 2009-02-25 | 2009-02-25 | Bellows joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201146062U CN201351782Y (en) | 2009-02-25 | 2009-02-25 | Bellows joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201351782Y true CN201351782Y (en) | 2009-11-25 |
Family
ID=41375169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201146062U Expired - Lifetime CN201351782Y (en) | 2009-02-25 | 2009-02-25 | Bellows joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201351782Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101520116B (en) * | 2009-02-25 | 2011-01-05 | 张康盛 | Corrugated pipe joint |
| CN102418820A (en) * | 2011-11-21 | 2012-04-18 | 常熟市迅达粉末冶金有限公司 | Ferrule pipe for corrugated pipe |
| CN103982744A (en) * | 2014-05-28 | 2014-08-13 | 浙江万得凯铜业有限公司 | Connecting structure and method of corrugated pipe and valve and clamp |
-
2009
- 2009-02-25 CN CNU2009201146062U patent/CN201351782Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101520116B (en) * | 2009-02-25 | 2011-01-05 | 张康盛 | Corrugated pipe joint |
| CN102418820A (en) * | 2011-11-21 | 2012-04-18 | 常熟市迅达粉末冶金有限公司 | Ferrule pipe for corrugated pipe |
| CN103982744A (en) * | 2014-05-28 | 2014-08-13 | 浙江万得凯铜业有限公司 | Connecting structure and method of corrugated pipe and valve and clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091125 Effective date of abandoning: 20090225 |