CN105650464A - Liquefied natural gas cylinder for vehicles and valve protection device thereof - Google Patents
Liquefied natural gas cylinder for vehicles and valve protection device thereof Download PDFInfo
- Publication number
- CN105650464A CN105650464A CN201410627632.0A CN201410627632A CN105650464A CN 105650464 A CN105650464 A CN 105650464A CN 201410627632 A CN201410627632 A CN 201410627632A CN 105650464 A CN105650464 A CN 105650464A
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- Prior art keywords
- cover plate
- valve
- gas cylinder
- protection circle
- rotary column
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- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 58
- 229910052751 metal Inorganic materials 0.000 claims abstract description 58
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 239000007789 gas Substances 0.000 claims description 59
- 239000012780 transparent material Substances 0.000 claims description 20
- 230000001681 protective effect Effects 0.000 claims description 19
- 230000001012 protector Effects 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 13
- 239000012994 photoredox catalyst Substances 0.000 claims description 12
- 239000004417 polycarbonate Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 239000004793 Polystyrene Substances 0.000 claims description 5
- 229920001903 high density polyethylene Polymers 0.000 claims description 5
- 239000004700 high-density polyethylene Substances 0.000 claims description 5
- 229920001684 low density polyethylene Polymers 0.000 claims description 5
- 239000004702 low-density polyethylene Substances 0.000 claims description 5
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims description 5
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 239000003345 natural gas Substances 0.000 claims description 2
- 238000004080 punching Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to a liquefied natural gas cylinder and a valve protection device thereof, in particular to a valve protection device of a liquefied natural gas cylinder for vehicles. At least one end of the air cylinder is provided with a valve. An air cylinder protection device is located at the end, with the valve, of the air cylinder. The air cylinder protection device comprises a metal protection ring, a protection ring cover plate and a hand wheel cover plate. The valve protection device is characterized in that one end of the metal protection ring is fixedly connected with a front seal of the air cylinder; the metal protection ring surrounds the valve of the air cylinder; the protection ring cover plate is detachably mounted at the other end of the metal protection ring; the protection ring cover plate shields the valve of the air cylinder; the protection ring cover plate is provided with at least one through hole; the hand wheel cover plate is rotationally mounted on the protection ring cover plate through a positioning mechanism and can shield the through hole selectively; and the positioning mechanism can position the hand wheel cover plate at any angle.
Description
Technical field
The present invention relates to a kind of gas cylinder valve protector, particularly relate to a kind of Vehicular liquefied natural gas cylinder and valve protection device thereof.
Background technology
Using natural gas liquids (LNG) as the automobile of fuel at present, especially truck gas cylinder airing system, gas cylinder adopts support installing in gas cylinder crossbeam side or top, outside gas cylinder valve end is exposed to, it is necessary to adopt valve to protect.
Existing valve protection device adopts metallic substance to make, and weight is relatively big, and when installation operation and maintenance, difficulty is all relatively big, and valve protection device generally adopts metallic substance to be welded to form, and outward appearance is poor, and cost is also higher. Owing to the valve protection device of prior art is metal opaque color; the parts such as tensimeter are not easily observed; such as the valve protection device involved by the patent No. 201210497037.0; gas cylinder front end valve operator guards entirety is metal material; weight is bigger; installation difficulty is relatively big, and metallic color also not easily observes valve instrument operation conditions, does not also protect for parts such as aerating seat, time gas seats.
Summary of the invention
The present invention provides a kind of Vehicular liquefied natural gas cylinder valve protection device, it is possible to realize the all-round protection of gas cylinder valve end, simultaneously again can implement device outward appearance is good, weight gently, easily install, be convenient to observe, operation, maintenance function.
For solving the problem, the present invention provides a kind of gas cylinder valve protector, and described gas cylinder at least has valve in one end, and described gas cylinder protector is positioned at one end that described gas cylinder has valve; Described gas cylinder valve protector comprises: metal protection circle, protection circle cover plate, handwheel cover plate; It is characterized in that, one end of described metal protection circle is fixedly connected with the fusing head of described gas cylinder, described metal protection circle surrounds described gas cylinder valve, the dismountable the other end being installed on described metal protection circle of described protection circle cover plate, and described protection circle cover plate covers described gas cylinder valve;
At least one through hole offered by described protection circle cover plate; described handwheel cover plate is rotatably installed on described protection circle cover plate by a locating mechanism; described handwheel cover plate can optionally cover described through hole, and described handwheel cover plate can be positioned all angles by described locating mechanism.
Further, described Vehicular liquefied natural gas cylinder protector also comprises a protective guard, and described gas cylinder also comprises at least one group of valve assembly; Described valve assembly is installed on described metal protection circle, is connected through described metal protection circle with described gas cylinder valve; Described protective guard is articulated in the outside surface of described metal protection circle, and covers described valving part.
Based on above-mentioned design, described locating mechanism comprises on one runner and once rotary column, and described upper runner is fixedly installed in described handwheel cover plate, and described lower rotary column is fixedly installed in described protection circle cover plate; And rotary column under being fixedly connected on that described upper runner is rotatable, has frictional contact surface between described upper runner and lower rotary column, locates described handwheel cover plate by frictional contact surface.
Based on above-mentioned design, described upper runner is that nest card closes or uses pivotal axis to be fixedly connected with the juncture of lower rotary column.
Based on above-mentioned design, described lower rotary column also comprises elasticity parts and a locating dowel, described lower rotary column inside forms an installation space, described elasticity parts and locating dowel are installed on installs in space, described locating dowel is by described elasticity parts and described upper runner contact, and described locating dowel can move up and down.
Based on above-mentioned design, inside described installation space, it is formed with at least one position guiding groove, the bottom outer wall of described locating dowel is formed and at least one leads a block and described position guiding groove fastens; Described locating dowel moves up and down along described position guiding groove.
Based on above-mentioned design, the lower surface of described upper runner and the upper surface of described locating dowel form described frictional contact surface, the lower surface of described upper runner is formed with multiple protuberance, and what the upper surface of described locating dowel was corresponding is formed with multiple recess, and described protuberance can be meshed with recess location.
Based on above-mentioned design, the protuberance of described upper runner and the recess of described locating dowel are that concentric radial direction extends layout, have and seamlessly transit between the bottom of described protuberance and recess to top.
Based on above-mentioned design, described lower rotary column is the cylindrical inner side being installed on described protection circle cover plate generally, and has part to reveal; The outer wall of described lower rotary column is formed at least one anti-rotational fixing wing and embeds described protection circle cover plate, prevent lower rotary column from rotating.
Based on above-mentioned design, described metal protection circle is the annular that stainless steel is made, and described metal protection circle adopts spot welding mode to be connected with described gas cylinder fusing head.
Based on above-mentioned design, described protection circle cover plate is the circular cover that transparent material is made, and described protection circle cover plate is connected with described metal protection circle in hasp mode.
Based on above-mentioned design, described protective guard is the square casing that transparent material is made, and one end of described protective guard is by hinge or articulated manner and described metal protection circle pivot joint.
Based on above-mentioned design, described handwheel cover plate is that cam shape made by transparent material.
Based on above-mentioned design, described transparent material is PET, HDPE, PVC, LDPE, PP, PS or PC material.
In sum, Vehicular liquefied natural gas cylinder valve protection device provided by the invention, described metal protection circle have employed metal construction, ensure that security intensity, it is one-body molded that remaining part have employed the transparent material meeting intensity, and cost is low, outward appearance good, weight is light; The protection circle cover plate of this device adopts removably to be connected with metal protection circle, and convenient operation keeps in repair; Handwheel cover plate in this device by locating mechanism can free adjustment and lock only, convenient operation maintenance; Valve assembly on metal protection circle has been protected by the protective guard of this device, and easily observes its operation conditions.
Accompanying drawing explanation
Fig. 1 is the structural representation of three-dimensional state of the present invention.
Fig. 2 is that the present invention protects circle cover plate and handwheel cover plate structure schematic diagram.
Fig. 3 is the structural representation of handwheel cover plate of the present invention and locating mechanism.
Fig. 4 is the longitudinal diagrammatic cross-section of locating mechanism of the present invention.
Embodiment
The exemplary embodiments embodying feature of present invention and advantage will describe in the following description in detail. Iting should be understood that the present invention can have various changes in different embodiments, it does not all depart from the scope of the present invention, and explanation wherein and to be shown in be use when explain in essence, and is not used to restriction the present invention.
The present invention provides a kind of Vehicular liquefied natural gas cylinder valve protection device, gas cylinder at least has valve 1 in one end, gas cylinder protector is positioned at one end that gas cylinder has valve 1, if gas cylinder two ends all have valve, it is also possible to all arrange this gas cylinder protector at the two ends of gas cylinder; Gas cylinder valve protector comprises: metal protection circle 2, protection circle cover plate 3, handwheel cover plate 4, locating mechanism 5, protective guard 6.
One end of metal protection circle 2 is fixedly connected with the fusing head of gas cylinder, and metal protection circle 2 surrounds gas cylinder valve 1, the protection circle dismountable the other end being installed on metal protection circle 2 of cover plate 3, and protection circle cover plate 3 covers the valve 1 of gas cylinder; At least one through hole 31 offered by protection circle cover plate 3, handwheel cover plate 4 is rotatably installed on protection circle cover plate 3 by a locating mechanism 5, handwheel cover plate 4 can optionally cover through hole 31, this through hole 31 can be circle, rectangle ellipse or fillet rectangle, what the shape of this through hole was preferential is circular, so that being operated by valve 1, handwheel cover plate 4 can be positioned all angles by locating mechanism 5; Gas cylinder also comprises at least one group of valve assembly 7, and this valve assembly 7 is installed on metal protection circle 2, is connected through metal protection circle 2 with gas cylinder valve 1, and protective guard 6 is articulated in the outside surface of metal protection circle 2, and covers valve assembly 7.
As shown in Figure 1, in this embodiment, the bottle body of this gas cylinder is cylindrical, and (when reality uses, the bottle body of gas cylinder can also be other shape, as square, ellipse or Polygons etc.), valve 1 is positioned at one end of this air valve, (when reality uses, this metal protection circle 2 can design various different shape by corresponding bottle body to the annular that metal protection circle 2 is made for stainless steel, as square, ellipse or Polygons etc.), adopt stainless steel structure or other other metal material that can meet intensity, such as copper, iron, aluminium alloy, not only ensure that security intensity, and profile is attractive in appearance. one butt end 21 of metal protection circle 2 adopts welding process to be connected with this gas cylinder fusing head, and the other end of metal protection circle 2 is open end 22.
As shown in Figure 1 to Figure 2; in order to meet the transparent material of intensity, (material of this transparent material is PET, HDPE, PVC, LDPE, PP, PS or PC etc. to protection circle cover plate 3; preferred material is that PC plate integrated punching is formed) make; its shape should be corresponding with metal protection circle; in the present embodiment, protection circle cover plate 3 is circular cover, adopts PC material, not only lighter in weight; it is convenient to dismounting, and it is convenient to observe the running status of above-mentioned valve 1. Protection circle cover plate 3 is connected with the open end 22 of metal protection circle 2 is mutually dismountable; concrete mode of connection formula can be bolt connection or hasp mode connects and other mode of connection; preferential mode of connection is that hasp connects to simplify disassembly process, so that being operated by protection circle cover plate 3 shield gas bottle valves 1.
As shown in Figure 1 to Figure 3, handwheel cover plate 4 is that (material of this transparent material is PET to transparent material, HDPE, PVC, LDPE, PP, PS or PC etc., preferred material is that PC plate integrated punching is formed) make, this handwheel cover plate 4 shape should be answered in above-mentioned through hole 31 shape, and it is greater than above-mentioned through hole to be covered by through hole 31, in the present embodiment, this handwheel cover plate 4 is cam shape, PC material integrated punching is adopted to be formed or use molded PC plate to be cut into, owing to using transparent material not only lighter in weight, it is convenient to dismounting, and above-mentioned valve 1 can not be caused visual occlusion, so that observing the running status of above-mentioned gas cylinder valve 1. handwheel cover plate 4 is rotatably installed on protection circle cover plate 3 by a locating mechanism 5, handwheel cover plate 4 can optionally cover through hole 31, handwheel cover plate 4 can be positioned all angles by locating mechanism 5, use locating mechanism 5 position handle wheel cap 4, the trouble of dismounting protection circle cover plate can not only be saved, but also it is easy to above-mentioned valve 1 is dismounted, keeped in repair.
As shown in Figure 3 to Figure 4, locating mechanism 5 comprises runner 51 on, once rotary column 52 and rotating shaft screw bolt 53, upper runner 51 is fixedly installed in the lug boss 41 of handwheel cover plate 4, incorporated by reference to reference to figure 2, lower rotary column 52 is fixedly installed in the open holes 32 above the through hole 31 of protection circle cover plate 3; And rotary column 52 under rotatable being fixedly connected on of upper runner 51, upper runner 51 is that nest card closes or other juncture with the juncture of lower rotary column 52, makes it be fixedly connected with and can rotate with the use of rotating shaft screw bolt 53 through above-mentioned two parts in the present embodiment.
As shown in Figure 4, upper runner 51 embeds in above-mentioned handwheel cover plate 4 tightly, and end face is concordant with the end face of handwheel cover plate 4, and middle position has a center through hole, and rotating shaft screw bolt 53 is fixedly connected with through this center through hole with lower rotary column 52; On this, the bottom surface of runner 51 can be concordant with the bottom surface of handwheel cover plate 4, and is formed with multiple protuberance 511, and this protuberance 511 is that radial extension arranges can have between each protuberance 511 bottom to top and seamlessly transit with one heart. Take turns on the bottom surface of 4 bottom of runner 51 on around this in this handwheel cover and a groove is set, stretch into this groove for lower rotary column 52 and carry out card conjunction or nested with upper runner 51.
Lower rotary column 52 is generally cylindrical to be installed in the open holes 32 that cover plate 3 is enclosed in protection, and through this protection circle cover plate 3; The top of this lower rotary column is enclosed cover plate 3 higher than protection and is stretched in the groove of above-mentioned handwheel cover plate 4, carries out card conjunction or nested with upper runner 51. This lower middle position of rotary column 52 has a center through hole, and rotating shaft screw bolt 53 is fixed through this center through hole and upper rotary column 51; The outer wall of this lower rotary column 52 is also formed the more than one anti-rotational fixing wing 527 and embeds protection circle cover plate 3, prevent lower rotary column 52 from rotating. This lower rotary column 52 also comprises locating dowel 521 and elasticity parts 522, and inside is formed with an installation space 523, locating dowel 521 and elasticity parts 522 are installed in this installation space 523, and locating dowel 521 can realize moving up and down in installation space 523 by elasticity parts 522.
Locating dowel 521 end face is formed with multiple recess 524, and this recess 524 is that radial extension arranges to have between recess 524 bottom to top and seamlessly transit, engage with raised part 511 phase contact with one heart. The middle position of locating dowel has a center through hole, and rotating shaft screw bolt 53 passes from this center through hole. One groove is inwardly formed on the bottom of locating dowel 521, and the part of above-mentioned elasticity parts 522 stretches in this groove, engages location with contact locating dowel 521 with upper runner 51. The bottom of this locating dowel 521 upwards also formed one with locating slot 525, formation a positioning block 526 that the inside in above-mentioned installation space 523 is corresponding, when this locating dowel 521 moves up and down in installation space 523, closed by the card of locating slot 525 and preset pieces 526 and realize location.
As shown in Figure 4, rotating shaft screw bolt 53 is successively through the bottom of upper runner 51, locating dowel 521, elasticity parts 522 and lower turn 52, and is fixed together. During actual use, promote handwheel cover plate 4 that runner 51 can be driven to rotate, raised part 511 extrudes locating dowel 521 and moves down, when this protuberance 511 moves to next recess 524 of lower locating dowel 521, elasticity parts 511 make locating dowel move up, this protuberance 511 is meshed together again, to realize the multi-angle location of handwheel cover plate 4 with recess 524.
As shown in Figure 1 to Figure 2, protective guard 6 is that (material of this transparent material is PET, HDPE, PVC, LDPE, PP, PS or PC etc. to transparent material, preferred material is that PC plate integrated punching is formed) make, this protective guard 6 can various shape housing, such as: ellipse semicircle, square or rounded square, the present embodiment protective guard 6 adopts the square casing that PC plate integrated punching is shaped, and not only manufactures letter reason, and is convenient to observe the running status of above-mentioned valve assembly 7 in use; This protective guard 6 by hinge or articulated manner and metal protection circle 2 pivot joint, not only be convenient to dismount, be also convenient to be operated by above-mentioned valve assembly 7.
In sum, gas cylinder valve protector provided by the invention, metal protection circle have employed metal construction, ensure that security intensity, and remaining part have employed that to meet intensity transparent material one-body molded, and cost is low, outward appearance good, weight is light; Locating mechanism in native system, can free adjustment and lock only, convenient operation maintenance; In native system, adopt transparent material, the valve assembly on metal protection circle has been protected, and has easily observed operation conditions.
Although exemplary embodiment describing the present invention with reference to several, it should be understood that term used illustrates and exemplary but not restrictive term. Spirit or the essence of invention is not departed from owing to the present invention can specifically implement in a variety of forms, so being to be understood that, above-described embodiment is not limited to any aforesaid details, and should explain widely in the spirit and scope that claim of enclosing limits, therefore fall into the whole change in claim or its equivalent scope and remodeling all should be claim of enclosing and contained.
Claims (27)
1. a gas cylinder valve protector, described gas cylinder at least has valve in one end, and described gas cylinder protector is positioned at one end that described gas cylinder has valve; Described gas cylinder valve protector comprises: metal protection circle, protection circle cover plate, handwheel cover plate; It is characterized in that, one end of described metal protection circle is fixedly connected with the fusing head of described gas cylinder, described metal protection circle surrounds described gas cylinder valve, the dismountable the other end being installed on described metal protection circle of described protection circle cover plate, and described protection circle cover plate covers described gas cylinder valve;
At least one through hole offered by described protection circle cover plate; described handwheel cover plate is rotatably installed on described protection circle cover plate by a locating mechanism; described handwheel cover plate can optionally cover described through hole, and described handwheel cover plate can be positioned all angles by described locating mechanism.
2. valve protection device as claimed in claim 1, it is characterised in that, described motor liquified gas gas cylinder protector also comprises a protective guard, and described gas cylinder also comprises at least one group of valve assembly; Described valve assembly is installed on described metal protection circle, is connected through described metal protection circle with described gas cylinder valve; Described protective guard is articulated in the outside surface of described metal protection circle, and covers described valving part.
3. valve protection device as claimed in claim 1, it is characterised in that, described locating mechanism comprises on one runner and once rotary column, and described upper runner is fixedly installed in described handwheel cover plate, and described lower rotary column is fixedly installed in described protection and encloses cover plate; And rotary column under being fixedly connected on that described upper runner is rotatable, has frictional contact surface between described upper runner and lower rotary column, locates described handwheel cover plate by frictional contact surface.
4. valve protection device as claimed in claim 3, it is characterised in that, described upper runner is that nest card closes or uses pivotal axis to be fixedly connected with the juncture of lower rotary column.
5. valve protection device as claimed in claim 3; it is characterized in that; described lower rotary column also comprises elasticity parts and a locating dowel; described lower rotary column inside forms an installation space; described elasticity parts and locating dowel are installed on installs in space; described locating dowel is by described elasticity parts and described upper runner contact, and described locating dowel can move up and down.
6. valve protection device as claimed in claim 5, it is characterised in that, it is formed with at least one position guiding groove inside described installation space, the bottom outer wall of described locating dowel is formed and at least one leads a block and described position guiding groove fastens; Described locating dowel moves up and down along described position guiding groove.
7. valve protection device as claimed in claim 6; it is characterized in that; the lower surface of described upper runner and the upper surface of described locating dowel form described frictional contact surface; the lower surface of described upper runner is formed with multiple protuberance; what the upper surface of described locating dowel was corresponding is formed with multiple recess, and described protuberance can be meshed with recess location.
8. valve protection device as claimed in claim 7, it is characterised in that, the protuberance of described upper runner and the recess of described locating dowel are that concentric radial direction extends layout.
9. valve protection device as claimed in claim 8, it is characterised in that, have between the bottom of described protuberance and recess to top and seamlessly transit.
10. valve protection device as claimed in claim 3, it is characterised in that, described lower rotary column is the cylindrical inner side being installed on described protection circle cover plate generally, and has part to reveal; The outer wall of described lower rotary column is formed at least one anti-rotational fixing wing and embeds described protection circle cover plate, prevent lower rotary column from rotating.
11. valve protection devices as claimed in claim 1, it is characterised in that, described metal protection circle is the annular that stainless steel is made, and described metal protection circle adopts spot welding mode to be connected with described gas cylinder fusing head.
12. valve protection devices as claimed in claim 1, it is characterised in that, described protection circle cover plate is the circular cover that transparent material is made, and described protection circle cover plate is connected with described metal protection circle in hasp mode.
13. valve protection devices as claimed in claim 2, it is characterised in that, described protective guard is the square casing that transparent material is made, and one end of described protective guard is by hinge or articulated manner and described metal protection circle pivot joint.
14. valve protection devices as claimed in claim 1, it is characterised in that, described handwheel cover plate is that cam shape made by transparent material.
Valve protection device as described in 15. items as arbitrary in claim 1 to 14, it is characterised in that, described transparent material is PET, HDPE, PVC, LDPE, PP, PS or PC material.
16. 1 kinds of natural gas cylinder valve protection devices, described gas cylinder at least has valve in one end, and described gas cylinder also has at least one group of valve assembly, and described gas cylinder protector is positioned at one end that described gas cylinder has valve; Described gas cylinder valve protector comprises: metal protection circle, protection circle cover plate, protective guard; It is characterized in that, one end of described metal protection circle is fixedly connected with the fusing head of described gas cylinder, the described protection circle dismountable the other end being installed on described metal protection circle of cover plate;
Described valve assembly is installed on described metal protection circle, is connected through described metal protection circle with described gas cylinder valve; Described protective guard is articulated in the outside surface of described metal protection circle, and covers described valving part.
17. valve protection devices as claimed in claim 16; it is characterized in that; at least one through hole offered by described protection circle cover plate; one handwheel cover plate is rotatably installed on described protection circle cover plate by a locating mechanism; described handwheel cover plate can optionally cover described through hole, and described handwheel cover plate can be positioned all angles by described locating mechanism.
18. valve protection devices as claimed in claim 17, it is characterised in that, described locating mechanism comprises on one runner and once rotary column, and described upper runner is fixedly installed in described handwheel cover plate, and described lower rotary column is fixedly installed in described protection circle cover plate; And rotary column under being fixedly connected on that described upper runner is rotatable, has frictional contact surface between described upper runner and lower rotary column, locates described handwheel cover plate by frictional contact surface.
19. valve protection devices as claimed in claim 18, it is characterised in that, described upper runner is that nest card closes or uses pivotal axis to be fixedly connected with the juncture of lower rotary column.
20. valve protection devices as claimed in claim 18; it is characterized in that; described lower rotary column also comprises elasticity parts and a locating dowel; described lower rotary column inside forms an installation space; described elasticity parts and locating dowel are installed on installs in space; described locating dowel is by described elasticity parts and described upper runner contact, and described locating dowel can move up and down.
21. valve protection devices as claimed in claim 20, it is characterised in that, it is formed with at least one position guiding groove inside described installation space, the bottom outer wall of described locating dowel is formed and at least one leads a block and described position guiding groove fastens; Described locating dowel moves up and down along described position guiding groove.
22. valve protection devices as claimed in claim 21; it is characterized in that; the lower surface of described upper runner and the upper surface of described locating dowel form described frictional contact surface; the lower surface of described upper runner is formed with multiple protuberance; what the upper surface of described locating dowel was corresponding is formed with multiple recess, and described protuberance can be meshed with recess location.
23. valve protection devices as claimed in claim 18, it is characterised in that, described lower rotary column is the cylindrical inner side being installed on described protection circle cover plate generally, and has part to reveal; The outer wall of described lower rotary column is formed at least one anti-rotational fixing wing and embeds described protection circle cover plate, prevent lower rotary column from rotating.
24. valve protection devices as claimed in claim 16, it is characterised in that, described metal protection circle is the annular that stainless steel is made, and described metal protection circle adopts spot welding mode to be connected with described gas cylinder fusing head.
25. valve protection devices as claimed in claim 16, it is characterised in that, described protection circle cover plate is the circular cover that transparent material is made, and described protection circle cover plate is connected with described metal protection circle in hasp mode.
26. valve protection devices as claimed in claim 16, it is characterised in that, described protective guard is the square casing that transparent material is made, and one end of described protective guard is by hinge or articulated manner and described metal protection circle pivot joint.
27. 1 kinds of Vehicular liquefied natural gas cylinders, are provided with the gas cylinder valve protector as described in item as arbitrary in claim 1 to 26.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410627632.0A CN105650464B (en) | 2014-11-10 | 2014-11-10 | A kind of Vehicular liquefied natural gas cylinder and its valve protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410627632.0A CN105650464B (en) | 2014-11-10 | 2014-11-10 | A kind of Vehicular liquefied natural gas cylinder and its valve protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105650464A true CN105650464A (en) | 2016-06-08 |
| CN105650464B CN105650464B (en) | 2019-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410627632.0A Active CN105650464B (en) | 2014-11-10 | 2014-11-10 | A kind of Vehicular liquefied natural gas cylinder and its valve protection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915729A (en) * | 2019-04-23 | 2019-06-21 | 长春致远新能源设备有限责任公司 | A kind of guard circle modular construction suitable for the Vehicular liquefied natural gas cylinder of small volume |
| CN111412386A (en) * | 2020-05-08 | 2020-07-14 | 长春致远新能源装备股份有限公司 | L NG air supply system gas cylinder is with new material guard circle structure and with gas cylinder connection structure |
| CN113074314A (en) * | 2020-01-03 | 2021-07-06 | 广州汽车集团股份有限公司 | Hydrogen tank valve protection support and fuel cell car |
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| DE10308676A1 (en) * | 2003-02-28 | 2004-09-09 | Adam Opel Ag | Protective cap for gas valve on pressure gas bottle for use in road vehicle has two separate half-shells with openings, held together by cap at top and ring at bottom |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915729A (en) * | 2019-04-23 | 2019-06-21 | 长春致远新能源设备有限责任公司 | A kind of guard circle modular construction suitable for the Vehicular liquefied natural gas cylinder of small volume |
| CN113074314A (en) * | 2020-01-03 | 2021-07-06 | 广州汽车集团股份有限公司 | Hydrogen tank valve protection support and fuel cell car |
| CN113074314B (en) * | 2020-01-03 | 2024-04-23 | 广州汽车集团股份有限公司 | Hydrogen tank valve protection support and fuel cell car |
| CN111412386A (en) * | 2020-05-08 | 2020-07-14 | 长春致远新能源装备股份有限公司 | L NG air supply system gas cylinder is with new material guard circle structure and with gas cylinder connection structure |
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| CN105650464B (en) | 2019-06-04 |
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