CN209557672U - Improved safe non-refillable valve - Google Patents
Improved safe non-refillable valve Download PDFInfo
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- CN209557672U CN209557672U CN201821930949.1U CN201821930949U CN209557672U CN 209557672 U CN209557672 U CN 209557672U CN 201821930949 U CN201821930949 U CN 201821930949U CN 209557672 U CN209557672 U CN 209557672U
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- sealing
- spool
- valve rod
- valve
- safe non
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Abstract
The utility model relates to a kind of improved safe non-refillable valve, including valve body, valve body has venting cavity, and valve body is equipped with air inlet；It is equipped with reciprocating valve rod in venting cavity, there is sealing on valve rod；It further include a spool being located in venting cavity, the lower part of spool is equipped with sealing, and top is equipped with support portion, fixing clamp is set with outside spool；The lower end of valve rod offers installation cavity, and fixing clamp is fixed on installation cavity, and being equipped in installation cavity can the shaft shoulder of the pushing tow on support portion；There is seal, seal can be blocked by sealing, have gas outlet on valve body in venting cavity below air inlet.The utility model has the beneficial effects that: spool is fixed on valve rod by fixing clamp, connection is reliable, and spool could fall after being only broken when valve rod moves down the support portion on spool, and state is highly stable, it will not fall under the interference of other factors, therefore the problem of accidentally sealing will not be caused.
Description
Technical field
The utility model relates to air charging system technical fields, more particularly to a kind of improved safe non-refillable valve.
Background technique
When filling medium into steel cylinder, need to be filled using filling valve.In order to avoid after filling completion
The repeated charging problem generated by carelessness needs filling valve that must not carry out repeated charging.In order to solve this problem, the patent No.
A kind of safe non-refillable valve is provided for 201720707149.2 Chinese utility model patent, passes through the downlink of valve rod
It will be pushed up under a ball sealer, to realize the sealing after the completion of filling by ball sealer.Its there is also the shortcomings that be: ball sealer by
Muscle is shelved to be supported, and shelving the connection between muscle and spool not is that very securely, shelving muscle is easy to move or fall, into
And ball sealer is caused to fall down, so that there is a phenomenon where accidentally seal.
Summary of the invention
In order to overcome the above deficiencies in the prior art, the utility model provides a kind of simple and compact for structure, sealing
Ball is less prone to the improved safe non-refillable valve of accidentally Sealing Phenomenon.
The technical scheme in the invention for solving the technical problem is: a kind of improved safe non-refillable valve, including
Valve body, the valve body have axially through venting cavity, the valve body is equipped with the air inlet that is connected with the venting cavity；
It is equipped with reciprocating valve rod in the venting cavity, has on the valve rod mutually close with the inner wall of the venting cavity
The sealing of envelope, the sealing position is in the top of the air inlet, the valve rod of the lower section of the sealing and the venting cavity
There is ventilation gap between inner wall；
It further include a spool being located in the venting cavity, the lower part of the spool is equipped with sealing, the top of the spool
It is equipped with support portion, the fixing clamp limited between the support portion and sealing is set with outside the spool；
The lower end of the valve rod offers the installation cavity of downwardly facing opening, and the fixing clamp is fixed on the installation cavity, should
Being equipped in installation cavity can the shaft shoulder of the pushing tow on the support portion；
There is seal corresponding with the sealing of the spool, the sealing in venting cavity below the air inlet
Mouth can be blocked by the sealing, have the gas outlet being connected by the seal with the venting cavity on the valve body.
Preferably, the fixing clamp is filled the span of a man's arms by least two panels clamp, carried out between the clamp by tenon and slot
Connection.
Preferably, the fixing clamp is equipped with buckle, the side wall of the installation cavity is equipped with opposite with the buckle
Card slot, it is described to be connected in the card slot.
Preferably, downwardly convex on the shaft shoulder be equipped with bulge loop, the support portion is concavely provided with opposite with the bulge loop
Groove.
Preferably, the support portion is equipped with a plurality of gap being disposed radially.
Preferably, the air inlet is equipped with protective case.
Preferably, the sealing of the valve rod is equipped with sealing ring.
Preferably, the upper end of the valve rod is equipped with handle, safety clip is equipped between the handle and the upper surface of valve body.
Preferably, the seal is in back taper.
Preferably, being equipped with spring between the upper end of the spool and the valve rod.
When the utility model is used, gas passes through ventilation gap from air inlet, seal, goes out by inlet charge
Port outflow.After filling, valve rod is pushed down on, valve rod pushes spool to move down, the sealing of spool and valve body it is close
After sealing contact, continue downward valve push rod, spool, which moves down, to be obstructed, and opposite valve rod moves up, on the shaft shoulder meeting pushing tow spool on valve rod
Support portion be broken support portion from spool, disengage spool mutually with fixing clamp, then valve rod moves up, and fixing clamp is on
It moves, and spool will not move up together with fixing clamp and valve rod, the sealing of spool is opposite with seal, sealing is formed, to have
Effect avoids repeated charging.
The utility model has the beneficial effects that: spool is fixed on valve rod by fixing clamp, connection is reliable, and spool only has
It could fall after being broken the support portion on spool when valve rod moves down, state is highly stable, will not be in the dry of other factors
Whereabouts is disturbed, therefore the problem of accidentally sealing will not be caused.
Detailed description of the invention
Fig. 1 is the installation diagram of the utility model.
Fig. 2 is the explosive view of the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Referring to Fig.1, Fig. 2, a kind of improved safe non-refillable valve, including valve body 1, the valve body have axially through
Venting cavity 2, the valve body is equipped with the air inlet 3 that is connected with the venting cavity, in the present embodiment, sets on the air inlet
There are protective case 4, long service life.
It is equipped with reciprocating valve rod 5 in the venting cavity 2, there is the inner wall with the venting cavity 2 on the valve rod
The mutually sealing 6 of sealing, the sealing position in the top of the air inlet 3, the valve rod 5 of the lower section of the sealing 6 with it is described
There is ventilation gap between the inner wall of venting cavity 2, in the present embodiment, the sealing of the valve rod 5 is equipped with sealing ring 7, thus
Reaching sealing effect, the upper end of the valve rod 5 is equipped with handle 8, safety clip 9 is equipped between the handle and the upper surface of valve body,
Before being filled and when filling, the presence of safety clip 9 make valve rod 5 will not it is unexpected under push away, insurance is removed after the completion of filling
Folder 9, the lower promotion that can carry out valve rod 5 are made.
It further include a spool 10 being located in the venting cavity 2, the lower part of the spool is equipped with sealing 11, the spool
Top is equipped with support portion 12, and the fixing clamp limited between the support portion and sealing, this reality are set with outside the spool 10
It applies in example, the fixing clamp is filled the span of a man's arms by least two panels clamp 13, it is attached between the clamp by tenon 14 and slot 15,
Fixing clamp is split type structure, and spool 10 is facilitated to be mounted in fixing clamp.
The lower end of the valve rod 5 offers the installation cavity 16 of downwardly facing opening, and the fixing clamp is fixed on the installation cavity 16
On, be equipped in the installation cavity can the shaft shoulder 17 of the pushing tow on the support portion, in the present embodiment, the fixing clamp is equipped with buckle
18, the side wall of the installation cavity 16 is equipped with the card slot 19 opposite with the buckle, and the buckle 18 is connected to the card slot 19
In so that fixing clamp is fixed on installation cavity 16, it is easy for installation, it is downwardly convex on the shaft shoulder 17 to be equipped with bulge loop 20, the support
Portion 12 is concavely provided with the groove 21 opposite with the bulge loop, and in 17 pushing tow of the shaft shoulder when on support portion 12, bulge loop 20 protrudes into groove
It in 21, playing the role of positioning, prevents spool 10 from shifting, the support portion 12 is equipped with a plurality of gap being disposed radially, this
Sample reduces the area of the junction of support portion 12 and spool 10, is easy to make to support when on support portion 12 in 17 pushing tow of the shaft shoulder
Portion 12 is broken with respect to spool 10, and spring 22, when valve rod 5 moves up, bullet are equipped between the upper end and the valve rod 5 of the spool 10
Spring 22 is for pushing spool 10 to leave fixing clamp.
There is seal 23 corresponding with the sealing 11 of the spool 10 in the venting cavity 2 of 3 lower section of air inlet,
The seal can be blocked by the sealing 11, had on the valve body 1 and passed through the seal 23 and 2 phase of venting cavity
The gas outlet 24 of connection, in the present embodiment, the seal 23 is in back taper, and sealing effect is good.
When the utility model is used, gas is from air inlet 3 by ventilation gap, seal by 3 air inlet of air inlet
23, gas outlet 24 is flowed out.After filling, valve rod 5 is pushed down on, valve rod pushes spool 10 to move down, the sealing of spool
After 11 contact with the seal 23 of valve body, continue downward valve push rod 5, spool 10, which moves down, to be obstructed, and opposite valve rod 5 moves up, on valve rod
The shaft shoulder 17 can the support portion 12 on pushing tow spool be broken support portion 12 from spool 10, disengage spool mutually with fixing clamp,
Then valve rod 5 moves up, and fixing clamp moves up therewith, and spool 10 will not move up together with fixing clamp and valve rod, the sealing of spool
11 block on seal 23, sealing are formed, to effectively avoid repeated charging.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change
It also should be regarded as the protection scope of the utility model into modification.
Claims (10)
1. a kind of improved safe non-refillable valve, including valve body, the valve body have axially through venting cavity, the valve
Body is equipped with the air inlet being connected with the venting cavity；
It is equipped with reciprocating valve rod in the venting cavity, is mutually sealed on the valve rod with the inner wall with the venting cavity
Sealing, the sealing position is in the top of the air inlet, the inner wall of the valve rod of the lower section of the sealing and the venting cavity
Between have ventilation gap；
It is characterized by also including a spool in the venting cavity, the lower part of the spool is equipped with sealing, the spool
Top be equipped with support portion, the fixing clamp limited between the support portion and sealing is set with outside the spool；
The lower end of the valve rod offers the installation cavity of downwardly facing opening, and the fixing clamp is fixed on the installation cavity, the installation
Being equipped in chamber can the shaft shoulder of the pushing tow on the support portion；
There is seal corresponding with the sealing of the spool, the seal can in venting cavity below the air inlet
It is blocked by the sealing, there is the gas outlet being connected by the seal with the venting cavity on the valve body.
2. improved safe non-refillable valve according to claim 1, it is characterised in that: the fixing clamp is by least two
Piece clamp is filled the span of a man's arms, and is attached between the clamp by tenon and slot.
3. improved safe non-refillable valve according to claim 1 or 2, it is characterised in that: set on the fixing clamp
There is buckle, the side wall of the installation cavity is equipped with the card slot opposite with the buckle, described to be connected in the card slot.
4. improved safe non-refillable valve according to claim 1 or 2, it is characterised in that: on the shaft shoulder downwards
It is convexly equipped with bulge loop, the support portion is concavely provided with the groove opposite with the bulge loop.
5. improved safe non-refillable valve according to claim 1 or 2, it is characterised in that: set on the support portion
There is a plurality of gap being disposed radially.
6. improved safe non-refillable valve according to claim 1 or 2, it is characterised in that: set on the air inlet
There is protective case.
7. improved safe non-refillable valve according to claim 1 or 2, it is characterised in that: the sealing of the valve rod
Portion is equipped with sealing ring.
8. improved safe non-refillable valve according to claim 1 or 2, it is characterised in that: the upper end of the valve rod
Equipped with handle, safety clip is equipped between the handle and the upper surface of valve body.
9. improved safe non-refillable valve according to claim 1 or 2, it is characterised in that: the seal is in
Taper.
10. improved safe non-refillable valve according to claim 1 or 2, it is characterised in that: the upper end of the spool
Spring is equipped between the valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821930949.1U CN209557672U (en) | 2018-11-22 | 2018-11-22 | Improved safe non-refillable valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821930949.1U CN209557672U (en) | 2018-11-22 | 2018-11-22 | Improved safe non-refillable valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209557672U true CN209557672U (en) | 2019-10-29 |
Family
ID=68300473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821930949.1U Active CN209557672U (en) | 2018-11-22 | 2018-11-22 | Improved safe non-refillable valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209557672U (en) |
-
2018
- 2018-11-22 CN CN201821930949.1U patent/CN209557672U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200121 Address after: Group 6, Fujia road village, Chongshou Town, Cixi City, Ningbo City, Zhejiang Province Patentee after: Chen Zhixue Address before: 315326 Zhejiang city of Ningbo province Cixi city Zhenning Feng Cun Zhang Jia Lu River Patentee before: Jiang Jie |
|
| TR01 | Transfer of patent right |