CN203529918U - Self-sealing refueling gun - Google Patents
Self-sealing refueling gun Download PDFInfo
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- CN203529918U CN203529918U CN201320588988.9U CN201320588988U CN203529918U CN 203529918 U CN203529918 U CN 203529918U CN 201320588988 U CN201320588988 U CN 201320588988U CN 203529918 U CN203529918 U CN 203529918U
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- flap
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Abstract
The utility model discloses a self-sealing refueling gun which is high in anti-impact capacity and long in service life. According to the technical scheme, the self-sealing refueling gun comprises a gun body, the gun body comprises an oil inlet channel communicated with the gun body and a main valve, the oil inlet channel comprises an inlet end, the main valve sequentially comprises a valve deck, a spring, a valve clack and a valve rod from top to bottom, the valve clack comprises an upper valve clack and a lower valve clack, the valve rod comprises a cylindrical upper end segment and a cylindrical lower end segment, the diameter of the upper end segment is smaller than that of the lower end segment, the lower valve clack is provided with a round through hole for the upper end segment to penetrate through, the diameter of the round through hole is matched with that of the upper end segment, the lower valve clack is located between the upper valve clack and the lower end segment, the valve rod and the valve clack are coaxially arranged, an sunken part which is sunken towards the valve clack is arranged at one end, opposite to the lower valve clack, of the upper valve clack, and the lower valve clack is provided with a protruding part used for being embedded into the sunken part; the circulation area of the oil inlet channel is gradually enlarged from the inlet to the main valve.
Description
Technical field
The utility model relates to a kind of topping up device and manufactures field, and more particularly, it relates to a kind of self-sealing refueling gun.
Background technology
Self-sealing series nozzle is suitable for the filling operation of the lightweight oils such as kerosene, gasoline, diesel oil.The self-packer that is melted into body of a gun design can be guaranteed when container is filled it up with, automatically to close oil gun, prevents that medium is excessive.Self-sealing refueling gun have one with combine together the pressure-sensitive work system of independent closed of the body of a gun, when oil gun main valve opens that oil stream is by reflux valve at a high speed, because the special structure design of reflux valve assembly just can make pressure-sensitive internal system, produce negative pressure.Under normal working, pressure-sensitive system negative pressure can constantly obtain gas make-up by being positioned at the breather pipe of oil outlet pipe, to maintain the upper and lower air pressure of the pressure-sensitive diaphragm state in balance substantially.When filling liquid level rise cover and the closed vent mouth of pipe after in (now container is full) pressure-sensitive system negative pressure understand fast rise, now pressure-sensitive diaphragm both sides air pressure has lost balance (top is negative pressure), diaphragm just can drive switch fastener to make gunlock out of supply to negative pressure one lateral movement, thereby nozzle completes self-styled closing movement within the shortest time.
At present, application number is that 201220071339.7 Chinese patent discloses a kind of self-sealing refueling gun, it comprises rifle body, be fixed on the oil outlet pipe on rifle body, the oil-feed mouth of pipe communicating with rifle body, Handleset, main valve and control cock, main valve and control cock are placed in rifle body, main valve comprises valve gap from top to bottom successively, spring, flap and valve rod, valve gap is fixed on rifle body, flap is placed on rifle body, spring is between flap and valve gap, valve rod one end is connected with flap heavy keying fit, the other end and Handleset contact, it is characterized in that described flap comprises flap and lower Disc, upper flap is positioned at the top of lower Disc, lower Disc is positioned on rifle body, the middle, lower end of upper flap is equipped with lower Disc centre the circular hole that diameter is identical, the lower end indent circle of upper flap is provided with 0 RunddichtringO, the lower end indent circle of lower Disc is provided with netted seal ring, the flange platform of upper flap upper end and one end of spring are connected, the diameter of valve rod upper end section is less than the diameter of valve rod lower end section, valve rod upper end section is through lower Disc circular hole, and be fixed with the circular hole of upper flap.
Although this self-sealing refueling gun is convenient, laborsaving in use, but, while passing into high pressure oily in rifle body, the impact resistance of main valve not enough, in long-term use, the position relationship between main valve and rifle body is easily because oily impact is offset, thereby affects the use of nozzle, particularly the sealing property between the flap in main valve and rifle body can be weakened because of long-term impact, thereby greatly reduce the service life of described self-sealing refueling gun.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide the self-sealing refueling gun of a kind of strong shock resistance, long service life.
For achieving the above object, the utility model provides following technical scheme: a kind of self-sealing refueling gun, comprise rifle body, Handleset and be fixed on the oil outlet pipe on rifle body, in described rifle body, comprise the oil inlet passage communicating with rifle body, main valve and control cock, described oil inlet passage comprises arrival end, described main valve comprises valve gap from top to bottom successively, spring, flap and valve rod, flap comprises flap and lower Disc, described valve rod comprises columned upper end section and lower end section, the diameter of upper end section is less than the diameter of lower end section, described lower Disc is provided with the manhole wearing for upper end section, the diameter of manhole and the diameter of upper end section are suitable, described upper flap is fixedly connected with the top of upper end section, lower Disc is between upper flap and lower end section, described valve rod and flap coaxially arrange, one end of the relative lower Disc of described upper flap is provided with the recessed depressed part to valve gap, described lower Disc is provided with for embedding the jut of depressed part, the flow area of described oil inlet passage expands gradually from entrance to main valve direction.
By adopting technique scheme, the jut of lower Disc is embedded to the depressed part of upper flap, can utilize flap to protect lower Disc, when reducing logical oily moment of nozzle or stopping oiling, flap return, the impact of the oil of high pressure to lower Disc, meanwhile, is improved to the flap of up-down structure upper flap, the lower Disc of Semi surrounding type, can also improve the structural strength of described flap, thereby promote the impact resistance of flap; In addition, the flow area of oil inlet passage is expanded from arrival end towards spool direction, change and adjusted the nowed forming of oil in oil inlet passage, utilize the flow area diffusing oil expanding, oily flow velocity is reduced, thereby obviously reduce the impact to flap, reduce the injury to flap, increase the service life of nozzle.
The utility model is further set to: between described upper flap and lower Disc, be provided with seal ring, the edge of upper flap is provided with to the flange of lower Disc direction bending, and described seal ring is conflicted and connected flange.
By adopting technique scheme, between upper flap and lower Disc, be provided with the leak tightness that seal ring can strengthen described flap; Flange is set can, the described seal ring of protection, be prevented that seal ring from being impacted, destroying by the oil of high pressure in refueling process, thereby affect sealing effectiveness.
The utility model is further set to: between described lower end section and rifle body, be provided with spring energy-storage seal ring.
By adopting technique scheme, spring energy-storage seal ring is comprised of polymeric material capsul and resistant to corrosion stainless steel metal spring, and seal ring is arranged in groove, spring pressurized, form outside tension force, impel sealing lip to be close to sealed groove, because spring forever provides elastic force to sealing lip; Therefore, use spring energy-storage seal ring not only can play the effect of sealing, can also make up valve rod in use and the bias producing between rifle body.
The utility model is further set to: the arrival end of described oil inlet passage is provided with oil-filtering apparatus.
By adopting technique scheme, in entrance, oil-filtering apparatus is set, can prevent that particle, the impurity in oil from entering rifle body, thereby destroy the leak tightness of main valve, and prevent that particle, impurity from entering fuel tank by nozzle, impacts oil-using units.
The utility model is further set to: described oil-filtering apparatus comprises some filter cores and for the fixing chuck of filter core, described chuck is fixedly connected on the inwall of described oil inlet passage.
By adopting technique scheme, fully particle, the impurity in filter oil of multiple filter core is set, the while also can relax the impact of the oil of high pressure to main valve; Fixedly filter core of chuck is set, prevents that filter core is subject to the oil of high pressure impact and damage.
The utility model is further set to: described handle for valve stem assembly is provided with the groove for the embedding of valve rod phase.
By adopting technique scheme, valve rod is embedded to described groove, can strengthen the contact strength of valve rod and handle, when refueling, prevent that valve rod and described Handleset from skidding, thereby improve the result of use of nozzle.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model self-sealing refueling gun embodiment;
Fig. 2 is the enlarged drawing at the A place in Fig. 1.
Reference numeral: 1, rifle body; 11, oil inlet passage; 111, arrival end; 12, main valve; 121, valve gap; 122, spring; 123, flap; 1231, upper flap; 1232, depressed part; 1233, lower Disc; 1234, jut; 1235, seal ring; 1236, flange; 124, valve rod; 1241, upper end section; 1242, lower end section; 13, control cock; 14, spring energy-storage seal ring; 2, Handleset; 21, groove; 3, oil outlet pipe; 4, oil-filtering apparatus; 41, filter core; 42, chuck.
The specific embodiment
Referring to figs. 1 through Fig. 2, the embodiment of the utility model self-sealing refueling gun is described further.
As shown in Figure 1 to Figure 2, a kind of self-sealing refueling gun, comprise rifle body 1, be fixed on oil outlet pipe 3 and Handleset 2 on rifle body 1, in described rifle body 1, comprise main valve 12, control cock 13 and the oil inlet passage 11 communicating with rifle body 1, described oil inlet passage 11 comprises arrival end 111, described main valve 12 comprises valve gap 121 from top to bottom successively, spring 122, flap 123 and valve rod 124, flap 123 comprises flap 1231 and lower Disc 1233, described valve rod 124 comprises columned upper end section 1241 and lower end section 1242, the diameter of upper end section 1241 is less than the diameter of lower end section 1242, described lower Disc 1233 is provided with the manhole wearing for upper end section 1241, the diameter of the diameter of manhole and upper end section 1241 is suitable, described upper flap 1231 is fixedly connected with the top of upper end section 1241, lower Disc 1233 is between upper flap 1231 and lower end section 1242, described valve rod 124 coaxially arranges with flap 123, one end of described upper flap 1231 relative lower Discs 1233 is provided with the recessed depressed part 1232 to valve gap 121, described lower Disc 1233 is provided with for embedding the jut 1234 of depressed part 1232, the flow area of described oil inlet passage 11 expands (it should be noted that, be to guarantee the flow resistance of oil inlet passage 11, the axial cross section of oil inlet passage 11 is trapezoidal) herein gradually from entrance to main valve 12 directions.
The jut of lower Disc 1,233 1234 is embedded to the depressed part 1232 of upper flap 1231, can utilize flap 1231 to protect lower Disc 1233, when reducing logical oily moment of nozzle or stopping oiling, flap 123 return, the impact of the oil of high pressure to lower Disc 1233, simultaneously, the flap of up-down structure 123 is improved to upper flap 1231, the lower Disc 1233 of Semi surrounding type, can also improves the structural strength of described flap 123, thereby promote the impact resistance of flap 123; In addition, the flow area of oil inlet passage 11 is expanded from arrival end 111 towards spool direction, change and adjusted the nowed forming of oil in oil inlet passage 11, utilize the flow area diffusing oil expanding, oily flow velocity is reduced, thereby obviously reduce the impact to flap 123, reduce the injury to flap 123, increase the service life of nozzle.
Between described upper flap 1231 and lower Disc 1233, be provided with seal ring 1235, the edge of upper flap 1231 is provided with the flange 1236 of downward bending, described seal ring 1235 conflicts connect flange 1236(and it should be noted that herein, can simultaneously the conflict wall of rifle body 1 inner passage of described seal ring 1235, plays the effect of damming).
Between upper flap 1231 and lower Disc 1233, be provided with the leak tightness that seal ring 1235 can strengthen described flap 123; Flange 1236 is set can, the described seal ring 1235 of protection, be prevented that seal ring 1235 from being impacted, destroying by the oil of high pressure in refueling process, thereby affect sealing effectiveness.
Between described lower end section 1242 and rifle body 1, be provided with spring energy-storage seal ring 14.
Spring energy-storage seal ring 14 is comprised of polymeric material capsul and resistant to corrosion stainless steel metal spring 122, seal ring 1235 is arranged in groove, and spring 122 pressurizeds, form outside tension force, impel sealing lip to be close to sealed groove, because spring 122 forever provides elastic force to sealing lip; Therefore, use spring energy-storage seal ring 14 not only can play the effect of sealing, can also make up valve rod 124 in use and the bias of generation between rifle body 1.
The arrival end 111 of described oil inlet passage 11 is provided with oil-filtering apparatus 4.
Oil-filtering apparatus 4 is set in entrance, can prevents that particle, the impurity in oil from entering rifle body 1, thereby destroy the leak tightness of main valve 12, and prevent that particle, impurity from entering fuel tank by nozzle, impacts oil-using units.
Described oil-filtering apparatus 4 comprises some filter cores 41 and for the fixing chuck 42 of filter core 41, described chuck 42 is fixedly connected on the inwall of described oil inlet passage 11.
Fully particle, the impurity in filter oil of multiple filter core 41 is set, the impact of the oil that also can relax high pressure simultaneously to main valve 12; Fixedly filter core 41 of chuck 42 is set, prevents that filter core 41 is subject to the oil of high pressure impact and damage.
Described valve rod 124 Handlesets 2 are provided with the groove 21 for valve rod 124 phase embeddings.
Valve rod 124 is embedded to described groove 21, can strengthen the contact strength of valve rod 124 and handle, when refueling, prevent that valve rod 124 and described Handleset 2 from skidding, thereby improve the result of use of nozzle.
The above makes preferred implementation of the present utility model, does not depart from for the person of ordinary skill of the art under the prerequisite of the utility model principle, can also make some modification and improvement, and these also should be considered as protection domain of the present utility model.
Claims (6)
1. a self-sealing refueling gun, comprise rifle body, Handleset and be fixed on the oil outlet pipe on rifle body, in described rifle body, comprise the oil inlet passage communicating with rifle body, main valve and control cock, described oil inlet passage comprises arrival end, described main valve comprises valve gap from top to bottom successively, spring, flap and valve rod, flap comprises flap and lower Disc, described valve rod comprises columned upper end section and lower end section, the diameter of upper end section is less than the diameter of lower end section, described lower Disc is provided with the manhole wearing for upper end section, the diameter of manhole and the diameter of upper end section are suitable, described upper flap is fixedly connected with the top of upper end section, lower Disc is between upper flap and lower end section, described valve rod and flap coaxially arrange, it is characterized in that: one end of the relative lower Disc of described upper flap is provided with the recessed depressed part to valve gap, described lower Disc is provided with for embedding the jut of depressed part, the flow area of described oil inlet passage expands gradually from entrance to main valve direction.
2. self-sealing refueling gun according to claim 1, is characterized in that: between described upper flap and lower Disc, be provided with seal ring, the edge of upper flap is provided with to the flange of lower Disc direction bending, and described seal ring is conflicted and connected flange.
3. self-sealing refueling gun according to claim 1 and 2, is characterized in that: between described lower end section and rifle body, be provided with spring energy-storage seal ring.
4. according to claim 1 or 2 or described self-sealing refueling gun, it is characterized in that: the arrival end of described oil inlet passage is provided with oil-filtering apparatus.
5. according to claim 4 or described self-sealing refueling gun, it is characterized in that: described oil-filtering apparatus comprises some filter cores and for the fixing chuck of filter core, described chuck is fixedly connected on the inwall of described oil inlet passage.
6. self-sealing refueling gun according to claim 1 and 2, is characterized in that: described handle for valve stem assembly is provided with the groove for the embedding of valve rod phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320588988.9U CN203529918U (en) | 2013-09-23 | 2013-09-23 | Self-sealing refueling gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320588988.9U CN203529918U (en) | 2013-09-23 | 2013-09-23 | Self-sealing refueling gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203529918U true CN203529918U (en) | 2014-04-09 |
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ID=50416154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320588988.9U Expired - Fee Related CN203529918U (en) | 2013-09-23 | 2013-09-23 | Self-sealing refueling gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203529918U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111942994A (en) * | 2020-07-16 | 2020-11-17 | 中国计量大学 | Automatic traction steel wire rope tension adjusting device based on hydraulic pressure and valve block |
-
2013
- 2013-09-23 CN CN201320588988.9U patent/CN203529918U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111942994A (en) * | 2020-07-16 | 2020-11-17 | 中国计量大学 | Automatic traction steel wire rope tension adjusting device based on hydraulic pressure and valve block |
| CN111942994B (en) * | 2020-07-16 | 2022-05-31 | 中国计量大学 | Automatic traction steel wire rope tension adjusting device based on hydraulic pressure and valve block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20140923 |
|
| EXPY | Termination of patent right or utility model |