CN204986091U - LPG high -voltage tube connection structure for fork truck - Google Patents
LPG high -voltage tube connection structure for fork truck Download PDFInfo
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- CN204986091U CN204986091U CN201520588843.8U CN201520588843U CN204986091U CN 204986091 U CN204986091 U CN 204986091U CN 201520588843 U CN201520588843 U CN 201520588843U CN 204986091 U CN204986091 U CN 204986091U
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- voltage tube
- lpg
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- gland nut
- horn mouth
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Abstract
The utility model relates to a LPG high -voltage tube connection structure for fork truck. The utility model aims at providing a simple structure, safe and reliable, durable's LPG high -voltage tube connection structure for fork truck. The utility model provides a: a LPG high -voltage tube connection structure for fork truck which characterized in that includes: connecting, having the external screw thread, the tip is the conical surface, the high -voltage tube adopts U type structure, and double -deck horn mouth is all made at both ends, gland nut, suit in high -voltage tube both ends, the gland nut inner wall divide into the three -section, be in proper order with the anastomotic linkage segment of high -voltage tube size, with the anastomotic conical transition of double -deck horn mouth outer wall of high -voltage tube and can with the external screw thread threaded connection's that connects screw thread section, wherein the double -deck horn mouth inner wall of high -voltage tube is sealed with the conical contact of joint, gland nut's screw thread section and joint external screw thread threaded connection, and gland nut's conical transition compresses tightly double -deck horn mouth. The utility model is suitable for a LPG fork truck LPG fuel conduit system.
Description
Technical field
The utility model relates to a kind of fork automotive LPG high-voltage tube linkage structure.Be applicable to LPG fork truck LPG system of fuel lines.
Background technique
LPG (liquefied petroleum gas (LPG)) mainly propane and butane, under suitable pressure (about 2.5MPa) with storage in liquid in reservoir container.Because LPG is explosives, inflammable items, and there is the harm of high pressure, once leak, there is very large potential safety hazard.When fork lift truck applications, guarantee that the safe and reliable application of LPG is particularly important.In brief, reliable, the durable particular importance of LPG pressure duct and Placement thereof.
According to relevant criterion, LPG fork truck pressure duct can use copper pipe, sebific duct, steel pipe etc.But because the makings composition of various places is different, containing the impurity such as H2S, dimethyl ether in a lot of sources of the gas, have very strong corrosivity to copper pipe, copper pipe exist be corroded, copper pipe becomes crisp phenomenon, therefore copper pipe is not too suitable for LPG pressure duct.In the practical application of LPG fork truck, LPG decompressor is generally all installed with in engine nacelle, if LPG pressure duct uses high-pressure rubber pipe, will not meet the requirement of some NBS.
In order to the requirement making LPG fork truck meet each national standard, and make LPG pressure duct safe and reliable, durable, a kind of Novel fork automotive LPG high pressure linkage structure newly developed.
Summary of the invention
The technical problems to be solved in the utility model is: for above-mentioned Problems existing, provides a kind of structure simple, safe and reliable, long-lived fork automotive LPG high-voltage tube linkage structure.
The technological scheme that the utility model adopts is: a kind of fork automotive LPG high-voltage tube linkage structure, is characterized in that comprising:
Joint, has outside thread, and end is the conical surface;
High-voltage tube, adopts U-shaped structure, and double-deck horn mouth is all made at two ends;
Gland nut, is set in high-voltage tube two ends, and gland nut inwall is divided into three sections, the thread section being followed successively by the linkage section coincide with high-voltage tube size, the tapering transition section of coincideing with the double-deck horn mouth outer wall of high-voltage tube and can being threaded with the outside thread of joint;
Wherein the double-deck horn mouth inwall of high-voltage tube and the taper-face contact of joint seal, and the thread section of gland nut is threaded with joint outside thread, and the tapering transition section of gland nut compresses double-deck horn mouth.
Described high-voltage tube is the B level cold drawing steel tube meeting ASTMA53 standard.
Described high-voltage tube surface is through the process of plating white zine.
The beneficial effects of the utility model are: the utility model adopts gland nut to compress double-deck horn mouth and the joint conical surface, on the basis of usage requirement meeting fork truck, LPG high-voltage tube and Placement safe, reliable, durable, both met the requirement of various countries' relevant criterion, and solved again current LPG pressure duct and there is unreliable durable problem.
Accompanying drawing explanation
Fig. 1 is the structural representation of connection part in the utility model.
Fig. 2 is the structural representation of the utility model mesohigh pipe.
Fig. 3 is the A portion enlarged view of Fig. 2.
Fig. 4 is the sectional view of gland nut in the utility model.
Embodiment
As shown in Figure 1 to 4, the present embodiment is a kind of fork automotive LPG high-voltage tube linkage structure, is made up of joint 1, high-voltage tube 2 and gland nut 3.Its middle joint 1 has outside thread, and its end face is the conical surface 11, and the other end screw thread is 1/4 〞 NPT tapered thread.High-voltage tube 2 is the B level cold drawing steel tubes (relative to 20 steel pipes) meeting ASTMA53 standard, in order to meet the usage requirement of fork truck, selects ￠ 8 × 1 specification; According to actual needs, high-voltage tube 2 is designed to calibration tube, in order to reduce the impact of vibration on pipeline, adopt " U-shaped " structural design, tube center bending radius is R25mm; High-voltage tube 2 two ends processing double-deck horn mouth 21 in 90 °; The process of high-voltage tube 2 plating zinc on surface, corrosion protection and antirust.
In the present embodiment, gland nut 3 has two, be set with in high-voltage tube 2 two ends, gland nut 3 inwall is divided into three sections, is followed successively by the linkage section 31 (being placed on high-voltage tube 2) coincide with high-voltage tube 2 size, the tapering transition section 32 of coincideing with double-deck horn mouth 21 outer wall of high-voltage tube and the thread section 33 that can be threaded with the outside thread of joint 1.
The present embodiment mesohigh pipe 2 is through gland nut 3 jointing 1, the thread section 33 of gland nut 3 is threaded with joint 1 outside thread, the tapering transition section 32 of gland nut 3 compresses double-deck horn mouth 21, to contact seal to make double-deck horn mouth 21 inwall of high-voltage tube 2 with the conical surface 11 of joint 1.
Certainly, above-mentioned explanation is not limitation of the utility model, and the utility model is also not limited to above-mentioned citing; those skilled in the art; in scope of the present utility model, the change made, change add or replace, all should belong to protection domain of the present utility model.
Claims (3)
1. pitch an automotive LPG high-voltage tube linkage structure, it is characterized in that comprising:
Joint (1), has outside thread, and end is the conical surface (11);
High-voltage tube (2), adopts U-shaped structure, and double-deck horn mouth (21) is all made at two ends;
Gland nut (3), be set in high-voltage tube (2) two ends, gland nut (3) inwall is divided into three sections, the thread section (33) being followed successively by the linkage section (31) coincide with high-voltage tube (2) size, the tapering transition section (32) identical with double-deck horn mouth (21) outer wall of high-voltage tube and can being threaded with the outside thread of joint (1);
Wherein double-deck horn mouth (21) inwall of high-voltage tube (2) contacts with the conical surface (11) of joint (1) and seals, the thread section (33) of gland nut (3) is threaded with joint (1) outside thread, and the tapering transition section (32) of gland nut (3) compresses double-deck horn mouth (21).
2. fork automotive LPG high-voltage tube linkage structure according to claim 1, is characterized in that: described high-voltage tube (2) is for meeting the B level cold drawing steel tube of ASTMA53 standard.
3. fork automotive LPG high-voltage tube linkage structure according to claim 1 and 2, is characterized in that: described high-voltage tube (2) surface is through the process of plating white zine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520588843.8U CN204986091U (en) | 2015-08-06 | 2015-08-06 | LPG high -voltage tube connection structure for fork truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520588843.8U CN204986091U (en) | 2015-08-06 | 2015-08-06 | LPG high -voltage tube connection structure for fork truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204986091U true CN204986091U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520588843.8U Active CN204986091U (en) | 2015-08-06 | 2015-08-06 | LPG high -voltage tube connection structure for fork truck |
Country Status (1)
| Country | Link |
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| CN (1) | CN204986091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673964A (en) * | 2016-04-20 | 2016-06-15 | 扬州良诚汽车部件有限公司 | Oil path sealing device and processing method thereof |
| CN110726015A (en) * | 2019-10-28 | 2020-01-24 | 徐州科恒奥制冷设备有限公司 | Connecting piece applied to automobile refrigeration system |
-
2015
- 2015-08-06 CN CN201520588843.8U patent/CN204986091U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673964A (en) * | 2016-04-20 | 2016-06-15 | 扬州良诚汽车部件有限公司 | Oil path sealing device and processing method thereof |
| CN110726015A (en) * | 2019-10-28 | 2020-01-24 | 徐州科恒奥制冷设备有限公司 | Connecting piece applied to automobile refrigeration system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |