CN207527287U - A kind of nitrogen charging device - Google Patents
A kind of nitrogen charging device Download PDFInfo
- Publication number
- CN207527287U CN207527287U CN201721696980.9U CN201721696980U CN207527287U CN 207527287 U CN207527287 U CN 207527287U CN 201721696980 U CN201721696980 U CN 201721696980U CN 207527287 U CN207527287 U CN 207527287U
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- valve
- air
- spool
- inflation nozzle
- nitrogen
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Abstract
The utility model discloses a kind of nitrogen charging device, the nitrogen charging device is for nitrogen charging inside apparatus casing, including the air intake valve being set on device housings and outlet valve and the air inflation nozzle being connected on air intake valve, the air intake valve includes valve body, valve seat, spool and spring, air admission hole and venthole are provided on device housings, valve body and valve seat are located at the inner side and outer side of air admission hole respectively, spool is set to by spring slide in the valve chamber of valve body, air inflation nozzle is connected on valve seat, air inflation nozzle one end connects source nitrogen, the other end is extended in the valve chamber of valve body, air inflation nozzle extends to the end inside valve chamber and is equipped with the dentate part that spool is pushed to slide；The outlet valve includes being located at the valve seat on the outside of venthole.The utility model is simple in structure, easy to operate, avoids the waste of gas in nitrogen cylinder.
Description
Technical field
The utility model is related to a kind of nitrogen charging device, for giving apparatus casing inside nitrogen charging.
Background technology
Existing apparatus casing nitrogen charging structure, most of is all single valve mechanism, by being opened up accordingly in shield
Mounting hole installs nitrogen charging valve, to meet the needs of apparatus casing nitrogen charging.This nitrogen charging mode is although easy to operate, it is only necessary to
Nitrogen charging valve mounting apertures are designed, but are had the following disadvantages during use：
First, the type selecting of valve is more had any problem, and equipment shield shape is changeable, and inside and outside portion's structure can not also be unified,
Existing valve mechanism is difficult the requirement met on device structure.
Secondly, existing valve is mostly check valve, and opening for valve needs certain pressure, and the pressure of nitrogen cylinder with
The consumption of gas continuously decreases, and when gas pressure is less than valve opening pressure, check valve just can not be opened, and lead to gas in gas cylinder
The waste of body.
Invention content
In view of the drawbacks of the prior art, the utility model provides a kind of nitrogen charging device, and the nitrogen charging device is simple in structure, operation
It is convenient, avoid the waste of gas in nitrogen cylinder.
In order to solve the technical problem, the technical solution adopted in the utility model is：A kind of nitrogen charging device, including equipment
Shell, the air intake valve being set on device housings and outlet valve and the air inflation nozzle being connected on air intake valve, it is described into
Air valve includes valve body, valve seat, spool and spring, and air admission hole and venthole, valve body and valve seat difference position are provided on device housings
In the inner side and outer side of air admission hole, spool is set to by spring slide in the valve chamber of valve body, and air inflation nozzle is connected on valve seat, is filled
Gas nozzle one end connects source nitrogen, and the other end is extended in the valve chamber of valve body, and the end that air inflation nozzle is extended to inside valve chamber is equipped with and pushes away
The dentate part that movable valve plug slides；The outlet valve includes being located at the valve seat on the outside of venthole.
Nitrogen charging device described in the utility model, be provided on spool for nitrogen by groove, and the groove of spool with into
Stomata mutually staggers, and when so that the spool is withstood air admission hole, air inlet position is in sealing state.
Nitrogen charging device described in the utility model, the spool are cylinder, and groove is evenly distributed on the outer wall of spool, valve
The blind hole for accommodating spring end is provided among core.
Nitrogen charging device described in the utility model, the valve base inner wall of air intake valve are provided with internal thread, outer spiral shell are provided on air inflation nozzle
Line, valve seat are connected through a screw thread with air inflation nozzle, and when air inflation nozzle is screwed off from valve seat, valve seat has been connected through a screw thread valve deck.
Nitrogen charging device described in the utility model, the valve base inner wall of outlet valve are provided with internal thread, and valve seat is connected through a screw thread
There is valve deck.
Nitrogen charging device described in the utility model, the end of air inflation nozzle connection source nitrogen is taper, and tapered end is inserted into nitrogen
In bottle exhaust hose.
Nitrogen charging device described in the utility model, position of the air intake valve on device housings are higher than the position of outlet valve.
The beneficial effects of the utility model：The spool of nitrogen charging device described in the utility model is slideably positioned in valve body, is filled
Gas nozzle, which is equipped with, can push the dentate part that spool slides in valve body so that when needing inflation, air inflation nozzle leading portion tooth-like part
Divide and jack up spool, nitrogen is entered by groove on air inflation nozzle and spool inside equipment, realizes nitrogen charging.The utility model is profit
Spool is jacked up with the dentate part of air inflation nozzle, when nitrogen pressure of the inside of a bottle is low, still air intake valve can be opened and realize nitrogen charging,
Avoid the waste of gas.And this nitrogen charging device is simple in structure, easy to operate using threaded connection, occupies little space, sealing
Strong, the equipment that can adapt to various shapes of property, cost are relatively low.
Description of the drawings
Fig. 1 is the assembling structure schematic diagram 1 that the utility model includes air inflation nozzle；
Fig. 2 is the assembling structure schematic diagram 2 that the utility model includes air inflation nozzle；
Fig. 3 is the decomposition texture schematic diagram 1 that the utility model includes air inflation nozzle；
Fig. 4 is the decomposition texture schematic diagram 2 that the utility model includes air inflation nozzle；
Fig. 5 is the assembling structure schematic diagram 1 that the utility model includes valve deck；
Fig. 6 is the assembling structure schematic diagram 2 that the utility model includes valve deck；
Fig. 7 is the decomposition texture schematic diagram 1 that the utility model includes valve deck；
Fig. 8 is the decomposition texture schematic diagram 2 that the utility model includes valve deck；
The structure diagram of air intake valve when Fig. 9 is nitrogen charging；
The structure diagram of air intake valve when Figure 10 is not nitrogen charging；
Figure 11 is the structure diagram of spool；
Figure 12 is the structure diagram of air inflation nozzle；
In figure：1st, device housings, 2, air intake valve, 3, outlet valve, 4, air inflation nozzle, 5, air admission hole, 6, venthole, 7, valve
Body, 8, valve seat, 9, spool, 10, spring, 11, dentate part, 12, groove, 13, blind hole, 14, valve deck.
Specific embodiment
The utility model is further described in the following with reference to the drawings and specific embodiments.
A kind of nitrogen charging device, as shown in Figure 1,2,3, 4, assembling structure when respectively nitrogen charging device includes air inflation nozzle are illustrated
Figure and decomposition texture schematic diagram, when nitrogen charging device includes air inflation nozzle 4, equipment carries out nitrogen charging, and nitrogen enters inside equipment.Nitrogen charging fills
It puts including device housings 1, the air intake valve being set on device housings 12 and outlet valve 3 and is connected on air intake valve 2
Air inflation nozzle 4, the air intake valve 2 includes valve body 7, valve seat 8, spool 9 and spring 10, is provided with 5 He of air admission hole on device housings 1
Venthole 6, valve body 7 and valve seat 8 are located at the inner side and outer side of air admission hole 5 respectively, and spool 8 is slideably positioned in valve body by spring 10
In 7 valve chamber, air inflation nozzle 4 is connected on valve seat 8, and 4 one end of air inflation nozzle connection source nitrogen, the other end extends to the valve chamber of valve body 7
Interior, as shown in figure 12, air inflation nozzle 4 extends to the end inside valve chamber and is equipped with the dentate part 11 that spool 9 is pushed to slide；It is described go out
Air valve includes the valve seat 8 for being located at 5 outside of venthole.
In the present embodiment, as shown in Fig. 9,11, be provided on spool 9 for nitrogen by groove 12, and the groove of spool
12 mutually stagger with air admission hole 5, and when so that the spool is withstood air admission hole, air admission hole 5 is in sealing state.Specifically, the valve
Core 9 is cylinder, and groove 12 is evenly distributed on the outer wall of spool 9, and the blind hole 13 for accommodating spring end is provided among spool 9.
In the present embodiment, the valve base inner wall of air intake valve 2 is provided with internal thread, is provided with external screw thread on air inflation nozzle 4, valve seat 8 with
Air inflation nozzle 4 is connected through a screw thread.When nitrogen charging completion needs sealing, air inflation nozzle 4 is screwed off from the valve seat of air intake valve 2, valve
Seat 8 has been connected through a screw thread valve deck 14, and such as Fig. 5,6,7,8, respectively nitrogen charging device includes dress when valve deck does not include air inflation nozzle
Distribution structure schematic diagram and decomposition texture schematic diagram.8 inner wall of valve seat of outlet valve 3 is also provided with internal thread, and valve seat 8 is connected by screw thread
It is connected to valve deck 14.
In the present embodiment, as shown in figure 12, the end that air inflation nozzle 4 connects source nitrogen is taper, and tapered end is inserted into nitrogen
In bottle exhaust hose.Position of the air intake valve on device housings is higher than the position of outlet valve.
When making this nitrogen charging device, it is first determined the relative position of air intake valve 2 and outlet valve 3 on device housings,
The relatively top installation of air intake valve is consolidated in installation site processing gas inlet hole 5 and the venthole 6 and corresponding structural member of valve
Determine hole；Valve seat 8 is installed to hull outside, when installation notices that threaded hole and valve seat mounting surface smear fluid sealant；Valve deck 14 is led to
It crosses and is threadably secured on valve seat 8, the sealing between valve deck 14 and valve seat 8 is sealed by rubber sheet gasketing；By spool 9, spring
10th, valve body 7 is in turn mounted to according to order on device housings 1, is made a part of the device housings 1 as nitrogen charging valve, is paid attention to valve
Fluid sealant is smeared at body mounting surface and corresponding mounting hole；Air inflation nozzle tapering point is inserted into nitrogen cylinder exhaust hose, ensures two
Sealing between person.
As described in Figure 9, during nitrogen charging, air intake valve 2 and the valve deck 14 of outlet valve 3 is removed first, air inflation nozzle 4 is passed through
Screw thread is connected with the valve seat 8 of air intake valve, and after being packed into air inflation nozzle 4,4 front end dentate part 11 of air inflation nozzle jacks up spool 9, nitrogen
Gas is entered by the groove 12 on air inflation nozzle 4 and spool 9 inside equipment, realizes nitrogen charging.As shown in Figure 10, after the completion of nitrogen charging,
The valve deck 14 of outlet valve 3 is installed first, then unloads air inflation nozzle 4, the valve deck 14 of air intake valve 2 is installed, it is complete
Into nitrogen charging.
Described above is only the basic principle and preferred embodiment of the utility model, and those skilled in the art are according to this reality
With the novel improvement and replacement made, belong to the scope of protection of the utility model.
Claims (7)
1. a kind of nitrogen charging device, it is characterised in that：Including device housings, the air intake valve and air outlet valve that are set on device housings
Door and the air inflation nozzle being connected on air intake valve, the air intake valve include valve body, valve seat, spool and spring, device housings
On be provided with air admission hole and venthole, valve body and valve seat are located at the inner side and outer side of air admission hole respectively, and spool is set by spring slide
It is placed in the valve chamber of valve body, air inflation nozzle is connected on valve seat, and air inflation nozzle one end connection source nitrogen, the other end extends to the valve of valve body
Intracavitary, air inflation nozzle extend to the end inside valve chamber and are equipped with the dentate part that spool is pushed to slide；The outlet valve includes position
Valve seat on the outside of venthole.
2. nitrogen charging device according to claim 1, it is characterised in that：Be provided on spool for nitrogen by groove, and
The groove of spool is mutually staggered with air admission hole, and when so that the spool is withstood air admission hole, air inlet position is in sealing state.
3. nitrogen charging device according to claim 2, it is characterised in that：The spool is cylinder, and groove is evenly distributed on
The blind hole for accommodating spring end is provided on the outer wall of spool, among spool.
4. nitrogen charging device according to claim 1, it is characterised in that：The valve base inner wall of air intake valve is provided with internal thread, fills
External screw thread is provided on gas nozzle, valve seat is connected through a screw thread with air inflation nozzle, and when air inflation nozzle is screwed off from valve seat, valve seat is connected by screw thread
It is connected to valve deck.
5. nitrogen charging device according to claim 1, it is characterised in that：The valve base inner wall of outlet valve is provided with internal thread, valve
Seat has been connected through a screw thread valve deck.
6. nitrogen charging device according to claim 1, it is characterised in that：The end of air inflation nozzle connection source nitrogen is taper, is bored
Shape end is inserted into nitrogen cylinder exhaust hose.
7. nitrogen charging device according to claim 1, it is characterised in that：Position of the air intake valve on device housings is higher than
The position of air valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721696980.9U CN207527287U (en) | 2017-12-08 | 2017-12-08 | A kind of nitrogen charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721696980.9U CN207527287U (en) | 2017-12-08 | 2017-12-08 | A kind of nitrogen charging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207527287U true CN207527287U (en) | 2018-06-22 |
Family
ID=62578002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721696980.9U Active CN207527287U (en) | 2017-12-08 | 2017-12-08 | A kind of nitrogen charging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207527287U (en) |
-
2017
- 2017-12-08 CN CN201721696980.9U patent/CN207527287U/en active Active
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