CN203139436U - Cylinder valve with self-locking function - Google Patents
Cylinder valve with self-locking function Download PDFInfo
- Publication number
- CN203139436U CN203139436U CN 201320114733 CN201320114733U CN203139436U CN 203139436 U CN203139436 U CN 203139436U CN 201320114733 CN201320114733 CN 201320114733 CN 201320114733 U CN201320114733 U CN 201320114733U CN 203139436 U CN203139436 U CN 203139436U
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- valve
- self
- locking
- locking closure
- spool
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Abstract
The utility model discloses a cylinder valve with a self-locking function. The cylinder valve comprises a valve body, a spool, a valve rod, a self-locking cover, a self-locking disc, a pressing cap and a spring, wherein a gas channel is arranged in the valve body, a section of inner thread is arranged on the inner wall of the valve body, an outer thread is arranged on the spool, the spool is connected with the thread of the valve body and rotates around the axis of itself to generate displacement in the axial direction, so that the gas channel is opened or closed. one end of the valve rod is connected with the valve spool and synchronously rotates with the spool, saw teeth meshed with each other are arranged on the self-locking cover and the self-locking disc, self-locking end faces are arranged on the saw teeth in the circumferential direction, so that the self-locking cover can only rotate around the axis of itself in one direction. The self-locking cover is connected with the other end of the valve rod to synchronously rotate with the valve rod, the pressing cap is sleeved on the valve rod, and the spring is arranged between the pressing cap and the self-locking disc and exerts axial force on the self-locking disc to enable the self-locking disc to be meshed with the self-locking cover. The cylinder valve can effectively avoid accidental interrupt of the gas channel.
Description
Technical field
The utility model relates to a kind of valve, relates in particular to a kind of gas cylinder valve with auto-lock function.
Background technology
Aerial respiration equipment is equipped as a kind of respiratory protection; now be widely used in heavy industry; environmental project; fields such as the energy and ocean industry; be used for fireman and related work personnel leak in fire, harmful substance, full of smoke, lack under the abominable operating condition such as oxygen, carry out a series of rescue works such as the detecting of fire source, fire extinguishing processing, rescue and relief work.
Aerial respiration equipment is air supply source with compressed air, its operation principle be for: when opening bottle valve, the pressure-air that is stored in the gas cylinder enters the pressure reducer assembly by bottle valve, pressure-air is depressurized and is middle pressure, pressure pipe enters and is installed in steam supply valve on the face shield in the middle pressure air warp, steam supply valve requires to carry out air feed according to user's breathing, leads to the face shield that connects with the steam supply valve conductance gas is sucked the human lung, has finished whole respiration cycle process.
Bottle valve plays a part to open and close the gas passage as the critical component of aerial respiration equipment in whole gas transmission course.When implementing rescue work, the bottle valve of aerial respiration equipment will be in opening all the time, and to carry out strictness control to this state, the maloperation that prevents any non-initiative is closed this bottle valve and is caused air feed to interrupt, thereby bring unnecessary influence to rescue work, even threaten rescue personnel's life security.
The utility model content
The purpose of this utility model provides a kind of bottle valve with auto-lock function, this bottle valve can in use be held open, can be owing to maloperation is accidentally shut down, avoid bottle valve to close and cause the interruption of source of the gas path, thereby eliminated breathing apparatus potential safety hazard in use, reduced the risk in the course of work, and then improved operating safety factor, guaranteed that safe and orderly the carrying out of life rescue carry out.
In order to achieve the above object, the utility model provides a kind of bottle valve with auto-lock function, and it comprises:
One valve body is provided with a gas passage in it, have one section internal thread on this valve interior wall;
One spool, its outer surface is provided with external screw thread, and this spool is threaded with valve body, and produces a displacement in the axial direction by the rotation around himself axle center, to close or to open described gas passage;
One valve rod, the one end is connected with described spool, to rotate synchronously with described spool;
One from locking closure and from lock collar, which is provided with intermeshing sawtooth, this sawtooth has the self-locking end face in circumferential direction, so that rotate in one direction only around himself axle center from locking closure, describedly be connected with the other end of described valve rod from locking closure, to rotate synchronously with described valve rod;
One pressure cap, it is sheathed on outside the described valve rod;
One spring, it is arranged at described pressure cap and between lock collar, applies an axial force to described from lock collar so that described from lock collar with mesh from locking closure.
By making bottle valve have auto-lock function on the basis of existing technology from lock collar, cooperatively interacting between locking closure and spring, can when opening, gas passage all the time bottle valve be remained on opening.Be arranged at the sawtooth that covers from lock collar and self-locking and all have the self-locking end face on circumferential direction separately, this self-locking end face makes and can only rotate around the axle center of himself on a direction initialization from locking closure, namely clockwise rotates or rotate counterclockwise.Under the gas passage open mode: when the rightabout towards direction initialization rotates from locking closure, from lock collar owing to the axial force that is subjected to spring is pressed to from locking closure, and with realize mutual interlock from locking closure by sawtooth, at this moment, locked from lock collar and can't be done further rotation from locking closure, thereby avoid the ovable valve stem of self-locking cover tape in use and spool to rotate and the gas passage of shutoff valve body synchronously; Yet, when being subjected to an axial downward power from locking closure, from lock collar under the effect of spring stress compression with separate from locking closure, engagement takes place to break away from from lock collar and from locking closure, at this moment, can rotate towards the rightabout of direction initialization from locking closure, just can drive valve rod from locking closure like this and rotate the gas passage that makes spool in rotation process, produce a downward displacement vertically and block valve body synchronously.
In addition, the inwall of valve body is provided with one section internal thread, correspondingly with it is, is provided with an external screw thread at the outer surface of spool, and spool and valve body are realized interconnecting by thread segment separately.In the rotary course of spool, it is in axial direction gone up and can produce a trend valve body or deviate from the displacement of valve body, thereby realizes the opening and closing of gas passage.
Bottle valve with auto-lock function of the present utility model makes bottle valve both need a revolving force that puts on handle when closing, also need one to put in axial direction downward pressing force, and only can apply a revolving force to handle during general maloperation, for this reason, the operating procedure of operating procedure when bottle valve is closed during than the bottle valve maloperation is more complicated, and the active force that applies is also bigger, has avoided so in use owing to wrong rotating handles direction is closed the situation generation that bottle valve causes interrupting air feed.
Further, above-mentioned bottle valve also comprises: the leader, it is connected from locking closure with described, to drive from locking closure around himself axle center rotation.Be convenient to the operator from the rotation of locking closure and in use can close or open bottle valve rapidly to drive putting handle from the locking closure peripheral hardware.
Further, above-mentioned handle is set to and can with to apply the axial compressive force that overcomes spring force from lock collar, makes from lock collar and from locking closure to break away from engagement with respect to mobile in the axial direction from locking closure.
Further, above-mentioned outer circumference surface from locking closure is provided with the projection that several extend vertically, and the inner peripheral surface of described handle is provided with the groove with this projection coupling.Realize both connection from the cooperation by groove and projection of locking closure and handle.
Further, above-mentioned bottle valve also comprises: a locking nut, it is sheathed on the end of the described valve rod other end.The locking nut that the valve rod end arranges will be in order to being fixedly installed on the valve rod from locking closure.
Compare with existing bottle valve, the advantage that possesses at the bottle valve with auto-lock function described in the utility model is as follows:
1) in use keep the unlatching of bottle valve, the accident of avoiding bottle valve is closed and is caused the interruption of gas passage;
2) compact conformation has alleviated user of service's the weight of wearing, and has saved user of service's physical demands;
3) eliminate accident potential, improve security and the stability of breathing apparatus.
Description of drawings
Fig. 1 is the explosive view of bottle valve under a kind of embodiment with auto-lock function described in the utility model.
Fig. 2 is the cross section view of the bottle valve with auto-lock function under confined state shown in Figure 1.
Fig. 3 is shown in Figure 1 from lock collar with from the structural representation of locking closure.
Fig. 4 is the structural representation from lock collar shown in Figure 3.
Fig. 5 is the structural representation from locking closure shown in Figure 3.
The specific embodiment
Come the bottle valve with auto-lock function described in the utility model is further explained explanation below in conjunction with Figure of description and concrete embodiment, yet this explanation does not constitute the improper restriction to technical solutions of the utility model.
As shown in Figure 1, the bottle valve with auto-lock function in the present embodiment 10 axially is followed successively by from left to right along it: valve body 1, and spool 2, valve rod 3, pressure cap 4, spring 5, from lock collar 6, from locking closure 7, locking nut 8 and handle 9.
As shown in Figure 2, be provided with gas passage 11 in the valve body 1, and be provided with internal thread segment at the inwall at the air inlet place of gas passage 11, correspondingly, outer surface at spool 2 is provided with external thread section, and valve body 1 is realized being threaded hermetically when bottle valve is closed with spool 2; One end of valve rod 3 is fixedlyed connected with spool 2, and its other end passes through locking nut 8 and fixedlys connected from locking closure 7, and when driving valve rods 3 rotations from locking closure 7, spool 1 is also along with valve rod 3 rotates; Pressure cap 4 is sheathed on outside the valve rod 3; Spring 5 be arranged on pressure cap 4 and between lock collar 6 with to apply from lock collar an axial force make from lock collar 6 with from locking closure 7 engagements, handle 9 be connected from locking closure 7.
Extremely shown in Figure 5 as Fig. 3, be provided with first sawtooth 61 from lock collar 6, be provided with second sawtooth 71 from locking closure 7, be meshing with each other between first sawtooth 61 and second sawtooth 71, first sawtooth 61 and second sawtooth 71 are respectively equipped with self-locking end face 611 and 711 in circumferential direction, self-locking end face 611,711 can make the self-locking lid around himself axle center only rotation in the counterclockwise direction when bottle valve is opened.Opposite with direction from second sawtooth 71 of locking closure 7 from the direction of first sawtooth 61 of lock collar 6, and the part of first sawtooth more than 61 that is positioned at from lock collar 6 is sheathed on when both mesh within locking closure 7.
Continuation is referring to Fig. 1 and Fig. 3, and in conjunction with Fig. 2, be provided with several projectioies of extending vertically 73 at the outer circumference surface from locking closure 7, be provided with and the grooves 93 of projection 73 couplings at the inner peripheral surface of handle 9, the cooperation by projection 73 and groove 93 realizes handle 9 and being connected from locking closure 7.When rotating handles 9, rotate around himself axle center under the drive of handle 9 from locking closure 7; Simultaneously along projection 73, handle 9 can also be with respect to producing displacement P from locking closure 7 in the axial direction, thereby handle 9 is pressed to from lock collar 6, make its axial compressive force that overcomes spring and with break away from engagement from locking closure 7.
Please continue to consult Fig. 2 and Fig. 3, the bottle valve of present embodiment is applied in the actual use, the user of service will open or shutoff operation for bottle valve according to the rescue process.When being rotated counterclockwise handle 9, press to from locking closure 7 to its axial force that applies owing to be subjected to spring 5 from lock collar 6, and with realize engagement from locking closure 7, handle 9 can be by carrying out anticlockwise rotation from locking closure 7 drive valve rods 3 and spool 2 like this, thereby make 2 of spools produce a displacement that makes progress vertically, spool 2 leaves valve body 1, and this moment, bottle valve was opened, and whole gas passage is in open mode.From lock collar 6 with under the situation of locking closure 7 engagement, because the setting of self- locking end face 611 and 711, make that handle 9 can't be by rotating from locking closure 7 drive valve rods 3 and spool 2 in the clockwise direction, spool 2 just can't carry out to bottom offset and can shutoff valve body 1 like this, at this moment, whole gas passage is in open mode all the time.When downward squeeze grip 9, overcome the axial compressive force of spring 5 and along axial downward movement from lock collar 6, break away from engagement from lock collar 6 and from locking closure 7, this moment, handle 9 can turn clockwise, handle 9 and then by driving valve rods 3 from locking closure 7 and spool 2 clockwise rotates, spool 2 produces a downward displacement vertically, spool 2 shutoff valve bodies 1, this moment, bottle valve was closed, and whole gas passage is in off-state.
Bottle valve with auto-lock function of the present utility model, can make bottle valve when work, be in opening all the time, prevent breathing apparatus source of the gas path effectively owing to maloperation and accidental interruption, thereby eliminate the potential safety hazard in the breathing apparatus use, security and stability when improving the breathing apparatus operation guarantee user's life security and normal operation.
It should be noted that; the above-mentioned explanation of disclosed embodiment makes this area professional and technical personnel to carry out multiple similar variation and modification for present embodiment apparently; this similar variation is all distortion that those skilled in the art can directly draw or be easy to just associate from content disclosed by the invention, all should belong to protection domain of the present utility model.Therefore the utility model can not be subjected to the restriction of this embodiment.
Claims (5)
1. bottle valve with auto-lock function, it comprises:
One valve body is provided with a gas passage in it, have one section internal thread on the described valve interior wall;
One spool, its outer surface is provided with external screw thread, and described spool is threaded with valve body, and produces a displacement in the axial direction by the rotation around himself axle center, to close or to open described gas passage;
One valve rod, the one end is connected with described spool, to rotate synchronously with described spool;
One from locking closure and from lock collar, which is provided with intermeshing sawtooth, this sawtooth has the self-locking end face in circumferential direction, so that rotate in one direction only around himself axle center from locking closure, describedly be connected with the other end of described valve rod from locking closure, to rotate synchronously with described valve rod;
One pressure cap, it is sheathed on outside the described valve rod;
One spring, it is arranged at described pressure cap and between lock collar, applies an axial force to described from lock collar so that described from lock collar with mesh from locking closure.
2. the bottle valve with auto-lock function as claimed in claim 1 is characterized in that, also comprises: the leader, it is connected from locking closure with described, to drive from locking closure around himself axle center rotation.
3. the bottle valve with auto-lock function as claimed in claim 2 is characterized in that, described handle is set to and can with to apply the axial compressive force that overcomes spring force from lock collar, makes from lock collar and from locking closure to break away from engagement with respect to mobile in the axial direction from locking closure.
4. the bottle valve with auto-lock function as claimed in claim 3 is characterized in that, described outer circumference surface from locking closure is provided with the projection that several extend vertically, and the inner peripheral surface of described handle is provided with the groove with this projection coupling.
5. the bottle valve with auto-lock function as claimed in claim 1 is characterized in that, also comprises: a locking nut, it is sheathed on the end of the described valve rod other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320114733 CN203139436U (en) | 2013-03-13 | 2013-03-13 | Cylinder valve with self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320114733 CN203139436U (en) | 2013-03-13 | 2013-03-13 | Cylinder valve with self-locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203139436U true CN203139436U (en) | 2013-08-21 |
Family
ID=48966996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320114733 Expired - Fee Related CN203139436U (en) | 2013-03-13 | 2013-03-13 | Cylinder valve with self-locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203139436U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333199A (en) * | 2015-11-06 | 2016-02-17 | 江门市宏乔新材料科技有限公司江海区分公司 | Gas bottle closing valve |
| CN106669058A (en) * | 2015-11-11 | 2017-05-17 | 江苏华燕船舶装备有限公司 | Bottle valve and working method thereof |
-
2013
- 2013-03-13 CN CN 201320114733 patent/CN203139436U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333199A (en) * | 2015-11-06 | 2016-02-17 | 江门市宏乔新材料科技有限公司江海区分公司 | Gas bottle closing valve |
| CN106669058A (en) * | 2015-11-11 | 2017-05-17 | 江苏华燕船舶装备有限公司 | Bottle valve and working method thereof |
| CN106669058B (en) * | 2015-11-11 | 2021-12-24 | 江苏华燕船舶装备有限公司 | Bottle head valve and working method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20200313 |