CN101749502A - Safe connection structure of gas pipe - Google Patents
Safe connection structure of gas pipe Download PDFInfo
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- CN101749502A CN101749502A CN200910217323A CN200910217323A CN101749502A CN 101749502 A CN101749502 A CN 101749502A CN 200910217323 A CN200910217323 A CN 200910217323A CN 200910217323 A CN200910217323 A CN 200910217323A CN 101749502 A CN101749502 A CN 101749502A
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- fuel tube
- connection structure
- plug
- collar
- safe connection
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Abstract
The invention provides a safe connection structure of a gas pipe and belongs to the technical field of pipe connection. The structure solves the problem that the existing connection structure cannot be connected with a novel gas pipe. The safe connection structure of the gas pipe is arranged between the gas pipe with a thread connecting end and an insert type connector to be connected, the surface of the insert type connector has ripples, the insert type connector is sleeved and connected with a screw cap and a clamp ring which can be clamped and connected with the ripples on the surface of the insert type connector, the clamp ring is arranged between the cap edge of the screw cap and the connecting end of the gas pipe, the clamp ring has a plurality of clamp claws, and a structure which enables the clamp claws to draw back when an axial extrusion force acts at the clamp ring is arranged between the screw cap and the clamp ring. The safe connection structure of the gas pipe can connect the novel gas pipe with the connecting end with a traditional Green head without changing a traditional Green head.
Description
Technical field
The invention belongs to pipe fitting interconnection technique field, relate to a kind of safe connection structure of fuel tube.
Background technique
Rubber fuel tube linkage structure commonly used in the past is such, have the surface on the gas valve and be the wavy Green's head of circle, during connection, only need the rubber fuel tube directly is set on Green's head, the circle of Green's head surface is wavy to play certain on-slip effect, fixes with clamping ring in the joint again.But the linkage structure of this fuel tube but has following defective:
When 1, the rubber fuel tube is enclosed within on Green's head, the connecting end of rubber fuel tube can be strutted, be easy to cause the combustion gas body when connecting, to produce cracking phenomena like this.
When 2, the rubber fuel tube is connected with Green's head, only depend on tight socket between them to concern to realize sealing, clamping ring can not circumferentially exert pressure to improve sealing.
3, the cumbersome and effort of clamping ring is installed.
Need sealing when 4, being connected with Green's head, so the internal diameter size of fuel tube causes the socket installation difficulty bigger less than Green's outside dimension owing to fuel tube.
5, the rubber fuel tube exists easily and wears out, can be by problems such as mouse break by the teeth.
Along with the progress of society, country has begun to promote the use of stainless steel ripple flexible pipe and has replaced original rubber pipe, and connects by screw thread between the Thread valve on Stainless Steel Flexible Hose and the combustion gas tool, to improve sealing and the soundness that connects.But still exist many traditional Green's heads of being connected with rubber pipe of being used on the market, what install on the combustion gas tool of many families simultaneously also is traditional Green's head, if Green's head that will originally connect by socket all be changed and be unrealistic, it is difficult to cause novel thread connecting mode to promote.
For this reason, people have designed a kind of new annexation, are with a nut exactly on Green's head, are connected with the ripple fuel tube, during connection seal ring are pushed to finish to be tightly connected.But fuel tube is to rely on Sealing to be extruded the back the axial snatching force of Green's head surface to be realized connection is also insecure, is prone to security incident with being connected of Green's head fully.
Summary of the invention
Existing the problems referred to above when the objective of the invention is to connect at existing fuel tube, and a kind of safe connection structure that the novel gas pipe can be connected with Green's head of traditional combustion gas tool has been proposed, make it have the advantages that to be connected firmly.
Purpose of the present invention can realize by following technical proposal: a kind of safe connection structure of fuel tube, be arranged between the fuel tube with threaded ends and the plug-in type connecting head that will be connected, the surface of plug-in type connecting head has ripple, be socketed with a nut on the described plug-in type connecting head, the connecting end of above-mentioned fuel tube is placed on the above-mentioned plug-in type connecting head and is connected with above-mentioned nut by screw thread, it is characterized in that, be socketed with on the described plug-in type connecting head one can with the plug-in type connecting head external waviness collar of clamping mutually, described collar is between the connecting end of the shade of nut and above-mentioned fuel tube, collar has several claws, and is being provided with the structure that above-mentioned claw is shunk between above-mentioned nut and the collar.
Collar axially locks together by claw and plug-in type connecting head, when the both sides of collar are subjected to axial extruding force simultaneously, claw falls in the external waviness of plug-in type connecting head to contraction of plug-in type connecting head direction and card, finish clamping, the connecting end of fuel tube and plug-in type connecting head link together the most at last.
In the safe connection structure of above-mentioned a kind of fuel tube, have conical surface on the outer side surface of described collar, the shade of above-mentioned nut is resisted against on this conical surface.One end face of collar is kept off by the connecting end of fuel tube, and the shade at place, other end acts on the conical surface of collar, and collar is shunk to the axis direction of plug-in type connecting head towards this end of shade, finishes clamping.
In the safe connection structure of above-mentioned a kind of fuel tube, side shape that the shade of described nut and collar conical surface lean and above-mentioned conical surface are complementary.
In the safe connection structure of above-mentioned a kind of fuel tube, be provided with the Sealing of a tubular between the connecting end of described collar and fuel tube, described Sealing is socketed on the plug-in type connecting head, and two end surfaces of Sealing lean with the connecting end of collar and fuel tube respectively.
The connecting end of fuel tube is when being connected with the plug-in type connecting head, and the interior edge face of Sealing is kept off by collar, and collar is kept off by the shade of nut, the exterior edge face of Sealing when connecting and the connecting end of fuel tube lean.In nut and the process that connecting end is connected, utilize Sealing that collar and connecting end will be between them axial compression along the plug-in type connecting head, Sealing is compressed both sides outside plug-in type connecting head radial inward, back and protrudes deformation simultaneously, the deformation part of protruding is squeezed in respectively on nut inwall and the plug-in type connecting head outer wall, reaches sealing effect.Wherein the deformation towards plug-in type connecting head outer wall direction partly also can be trapped in the trough of plug-in type connecting head, improves sealing.Because Sealing is tubular, so Sealing is after being extruded, can be squeezed on a plurality of crests simultaneously and a plurality of troughs in, form multiple-sealed.
In the safe connection structure of above-mentioned a kind of fuel tube, described collar comprises a ring skeleton, is evenly distributed with several claws on ring skeleton.
In the safe connection structure of above-mentioned a kind of fuel tube, an end and the ring skeleton of above-mentioned each claw are connected, and the other end is towards the bending of plug-in type connecting head direction and be formed with conical surface, and the shade of above-mentioned nut is blocked on this conical surface.
In the safe connection structure of above-mentioned a kind of fuel tube, described collar comprises the claw of several independent, and each claw circumferentially is evenly distributed on the surface of plug-in type connecting head.
In the safe connection structure of above-mentioned a kind of fuel tube, described Sealing adopts rubber material to be made.
In the process of squeeze sealing member, the ring skeleton of collar part is subjected to the reaction force from Sealing equally, and conical surface then is resisted against the active force that is subjected on the shade of nut from shade.Under active force acting in conjunction from the collar both sides, the claw end is inwardly shunk, final card is trapped in the trough of plug-in type connecting head.
In the safe connection structure of above-mentioned a kind of fuel tube, described ring skeleton and claw all adopt metallic material to be made.
In the safe connection structure of above-mentioned a kind of fuel tube, described ring skeleton and claw are integral structure.
In the safe connection structure of above-mentioned a kind of fuel tube, the quantity of described claw is 4-8.
In the safe connection structure of above-mentioned a kind of fuel tube, the quantity of described claw is 6.
In this linkage structure, the plug-in type connecting head can be valve one end, also can be an end of pipe joint, and only the snapping portion that needs the surface to have for the claw banding gets final product.Therefore this linkage structure can make fuel tube directly be connected with pipe fitting or valve.
Compared with prior art, the safe connection structure of this fuel tube has the following advantages:
1, on the basis of not changing traditional Green's head, the fuel tube of novel band connecting end can be connected with traditional Green's head, saved the expense of changing traditional Green's head, help the popularization of novel gas pipe.
2, fuel tube utilizes the deformation of Sealing to finish sealing when connecting, good airproof performance, and Sealing is pressed between connecting end and the collar simultaneously, and stability is higher.
3, it is sunken in the trough of plug-in type connecting head to realize that each scalable claw of elasticity blocks behind pressurized, makes being connected firmly of fuel tube.
Description of drawings
Fig. 1 is the half section structural representation of the safe connection structure of this fuel tube.
Fig. 2 is the structural representation of collar in the safe connection structure of this fuel tube.
Fig. 3 is the left side structural representation of Fig. 2.
Fig. 4 is the deformation schematic representation of safe connection structure collar when connecting of this fuel tube.
Fig. 5 is the perspective view of another kind of shape collar in the linkage structure of this fuel tube.
Among the figure, 1, fuel tube; 11, connecting end; 2, gas valve; 21, plug-in type connecting head; 3, nut; 31, shade; 4, collar; 41, ring skeleton; 42, claw; 42a, conical surface; 5, Sealing.
Embodiment
Below be specific embodiments of the invention and in conjunction with the accompanying drawings, technological scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figure 1, the linkage structure of this fuel tube is applicable to that fuel tube 1 and the conventional surface of band connecting end 11 have being connected of gas valve 2 of the plug-in type connecting head 21 of ripple.This linkage structure includes a nut 3 that is socketed on the plug-in type connecting head 21, connecting end 11 ends of fuel tube 1 are inserted in the nut 3 and are socketed on the plug-in type connecting head 21, nut 3 is threaded with connecting end 11, be provided with between plug-in type connecting head 21 and the nut 3 one can with the plug-in type connecting head 21 external wavinesses collar 4 of clamping mutually, and this collar 4 is socketed on the described plug-in type connecting head 21.
Be provided with the Sealing 5 of a tubular between collar 4 and the connecting end 11, sealing part 5 is socketed on the plug-in type connecting head 21, and the both ends of the surface of Sealing 5 lean with connecting end 11 and collar 4 respectively.In the present embodiment, Sealing 5 adopts rubber material to be made.
As Fig. 2 and Fig. 3 and shown in Figure 5, collar 4 comprises a ring skeleton 41, but on ring skeleton 41, be evenly distributed with 6 claws 42 that elasticity is scalable, described claw 42 1 ends and ring skeleton 41 are connected, the other end is towards the bending of plug-in type connecting head 21 directions and be formed with conical surface 42a, the shade 31 of above-mentioned nut 3 is blocked on the conical surface 42a of claw 42, and shade 31 is complementary with a side shape and the conical surface 42a that claw 42 leans, and 41 of ring skeletons and Sealing 5 lean.In the present embodiment, ring skeleton 41 and claw 42 all adopt metallic material to be made, and both are integral structure.
The connecting end 11 of fuel tube 1 is when being connected with plug-in type connecting head 21, and the interior edge face of Sealing 5 is kept off by ring skeleton 41, and claw 42 is kept off by the shade 31 of nut 3, the exterior edge face of Sealing 5 when connecting and the connecting end 11 of fuel tube 1 lean.
In this linkage structure, plug-in type connecting head 21 can be valve one end, also can be an end of pipe joint, and only the snapping portion that needs the surface to have for claw 42 bandings gets final product.Therefore this linkage structure can make fuel tube 1 directly be connected with pipe fitting or valve.
Another situation, collar 4 wherein can be made up of the claw 42 of several independent, and each claw 42 circumferentially is evenly distributed on the surface of plug-in type connecting head 21.The shape of collar 4 can also be the ring-type of opening or by two semicircle compositions, by or other opposite sex, need make its claw 42 can be circumferentially with plug-in type connecting head 21 bandings.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technician of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (10)
1. the safe connection structure of a fuel tube, be arranged on and have threaded ends between fuel tube (1) and the plug-in type connecting head (21) that will be connected of (11), the surface of plug-in type connecting head (21) has ripple, be socketed with a nut (3) on the described plug-in type connecting head (21), the connecting end (11) of above-mentioned fuel tube (1) is placed in that above-mentioned plug-in type connecting head (21) is gone up and is connected with above-mentioned nut (3) by screw thread, it is characterized in that, be socketed with on the described plug-in type connecting head (21) one can with plug-in type connecting head (21) the external waviness collar of clamping (4) mutually, described collar (4) is between the connecting end (11) of the shade (31) of nut (3) and above-mentioned fuel tube (1), collar (4) has several claws (42), and is provided with the structure that above-mentioned claw (42) is shunk between above-mentioned nut (3) and collar (4).
2. the safe connection structure of a kind of fuel tube according to claim 1 is characterized in that, has conical surface (42a) on the outer side surface of described collar (4), and the shade (31) of above-mentioned nut (3) is resisted against on this conical surface (42a).
3. the safe connection structure of a kind of fuel tube according to claim 2 is characterized in that, side shape that the shade (31) of described nut (3) and collar (4) conical surface (42a) lean and above-mentioned conical surface (42a) are complementary.
4. according to the safe connection structure of claim 1 or 2 or 3 described a kind of fuel tube, it is characterized in that, be provided with the Sealing (5) of a tubular between the connecting end (11) of described collar (4) and fuel tube (1), described Sealing (5) is socketed on the plug-in type connecting head (21), and two end surfaces of Sealing (5) lean with the connecting end (11) of collar (4) and fuel tube (1) respectively.
5. according to the safe connection structure of claim 1 or 2 or 3 described a kind of fuel tube, it is characterized in that described collar (4) comprises a ring skeleton (41), on ring skeleton (41), be evenly distributed with several claws (42).
6. the safe connection structure of a kind of fuel tube according to claim 5, it is characterized in that, one end of above-mentioned each claw (42) and ring skeleton (41) are connected, the other end is towards the bending of plug-in type connecting head (21) direction and be formed with conical surface (42a), and the shade (31) of above-mentioned nut (3) is blocked on this conical surface (42a).
7. according to the safe connection structure of claim 1 or 2 or 3 described a kind of fuel tube, it is characterized in that described collar (4) comprises the claw (42) of several independent, each claw (42) circumferentially is evenly distributed on the surface of plug-in type connecting head (21).
8. the safe connection structure of a kind of fuel tube according to claim 4 is characterized in that, described Sealing (5) adopts rubber material to be made.
9. the safe connection structure of a kind of fuel tube according to claim 5 is characterized in that, described ring skeleton (41) and claw (42) all adopt metallic material to be made.
10. the safe connection structure of a kind of fuel tube according to claim 9 is characterized in that, described ring skeleton (41) and claw (42) are integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910217323A CN101749502A (en) | 2009-12-30 | 2009-12-30 | Safe connection structure of gas pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910217323A CN101749502A (en) | 2009-12-30 | 2009-12-30 | Safe connection structure of gas pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101749502A true CN101749502A (en) | 2010-06-23 |
Family
ID=42476922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910217323A Pending CN101749502A (en) | 2009-12-30 | 2009-12-30 | Safe connection structure of gas pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101749502A (en) |
-
2009
- 2009-12-30 CN CN200910217323A patent/CN101749502A/en active Pending
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Application publication date: 20100623 |