CN2368058Y - Improved structure of safety flow controller - Google Patents
Improved structure of safety flow controller Download PDFInfo
- Publication number
- CN2368058Y CN2368058Y CN 98251504 CN98251504U CN2368058Y CN 2368058 Y CN2368058 Y CN 2368058Y CN 98251504 CN98251504 CN 98251504 CN 98251504 U CN98251504 U CN 98251504U CN 2368058 Y CN2368058 Y CN 2368058Y
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- CN
- China
- Prior art keywords
- passage
- holding piece
- static holding
- ring
- ball
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- Expired - Fee Related
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Abstract
The utility model relates to an improved structure of a safety flow controller, which comprises a casing, a holding element, a leak stopping ring, a circular ball, an air seal element, a positioning element and a restoring button set, wherein, a passage is arranged in the casing, and a butting and stopping part is arranged in the passage; the holding element is a hollow cylinder, and is formed into a shaft hole in an axial way; the top edge of the peripheral surface of the holding element has an opening which is communicated with the shaft hole, and the peripheral wall of the shaft hole is provided with a holding ring near the opening; the holding element is arranged in the passage, and the holding ring is positioned between the butting and stopping part and the opening; the leak stopping ring is arranged in the holding ring; the circular ball is arranged in the shaft hole, and is positioned below the opening; the air seal element is arranged between the inner end of the holding element and the butting and stopping part; the positioning element is arranged in the passage; the restoring button set is arranged on the casing, and is positioned above the opening.
Description
The utility model is relevant with the device of control gas fluid, the structure-improved that is meant a kind of safe traffic controller of knowing clearly.
Press, Fig. 1 that shown in Figure 2, it is the structure of known a kind of safe traffic controller, has a passage 12 in this flow controller 10 for the methane gas circulation, in this passage 12, be provided with O shape ring 13 and one ball 14, under normal condition, methane gas must flow in this passage 12, is supplied to Gas appliance.Take place as unusual condition, when the gas fluid is leaked in a large number, utilize the then low venturi principle of pressure of flow velocity height, position in this ball 14 promptly can produce pressure differential, and promote this O shape ring 13 of ball 14 driving fits, shown in the figure imaginary line, use closed channel and cut off gas.After unusual condition is got rid of, push the button 16 of an involution assembly 15, ball is pushed away O shape ring, make it to reply normal condition, can continue to use.
On take off structure and have following disappearance:
When one, Yu Chaoliu cuts off, the effect of this button 16 is in order to push away ball 14, can push ball smoothly open for ease of button, the ammonium button promptly must be under the situation that can not touch O shape ring 13, to be advisable near this O ring as far as possible, makes button press contact point in ball, can be in the left side at ball center, so that when ball is pushed, can turn right and drop, do not injure O shape ring and can not turn left.And in order to dwindle the volume after involution assembly 15 assembling, and the stroke that reduces button, the involution assembly is down encircled near O shape as far as possible.Because for the push rod 161 that makes button 16 encircles near O shape as far as possible, and make the involution assembly as far as possible down near O shape ring, promptly can cause at pedestal 151 for this involution assembly 15, last wall thickness between the screw 17 that spiral shell is established and this O shape ring, shown in Fig. 2 label A, very few, the structural strength that influences this controller 10 is very huge.
Two, the shoulder hole 121 in this passage 12 must be in response to the size of this O shape ring, thus must be quite accurate in processing, and the beginning can be controlled the tight ness rating of O shape ring setting.Because passage is to be positioned at housing, must make in the mode of interior processing, be difficult in making the control of going up precision.
Three, O shape is encircled when being arranged in this shoulder hole 121, and shoulder hole perisporium and intermarginal palpus coating of O shape ring week glue encircle with cementation O shape.Only glue regular meeting overflows outside the shoulder hole, and flows in the passage 12, and it is sticking to make ball 14 be stained with by glue, and the start of ball is promptly influenced, and the normal super stream of influence cuts off effect.
Four, after in a single day make in this passage 12, shoulder hole 121, be installed in the passage, super O shape of flowing cut-out is encircled and the size of ball is fixing in order to produce, the super stream cut-out value of taking off each controller of structure in other words, is for fixing, can't changing, therefore, desire to reach different super flow valuves, promptly must individually else make different controllers, with the passage and the shoulder hole of making different inner diameters.So, each housing only has and one surpasses flow valuve, and the dealer promptly must make the housing of many different sizes, and to produce different super flow valuves, this measure expends dealer's great amount of cost, reduces the operation of capital degree, and stock buildup amount and inventory cost.
What five, O shape ring was simple is fixed in effect in the smooth shoulder hole and bad with viscose glue, comes off from takeing on the hole easily, is especially promoting ball when the involution assembly, and when ball and O shape ring was separated, O shape ring is easier to be subjected to the promotion of ball and to come off.
Six, O shape ring is to be the soft rubber bodies of matter, and when the side face of shoulder hole, the rigid elasticity that will reduce O shape ring of viscose glue is with flexible with the sticking work of viscose glue for it, influence that O shape is encircled and ball between impermeability.
That shown in Figure 3 is the structure that shows known another kind of safe traffic controller 20, and it is in the shoulder hole 221 of passage 22, and other is provided with the retaining piece 23 of a tubular, and an end of this retaining piece 23 is the rooms 24 that set to the concave, and encircles 25 build-ins in interior for O shape.These retaining piece 23 peripheries are the rooms 24 that set to the concave, and supply O type ring 25 build-ins in interior.These retaining piece 23 peripheries and shoulder are bonding with viscose glue between the hole, and viscose glue is except that the effect as fixing retaining piece 23, and another mainly provides retaining piece 23 and the airtight effect of takeing between the hole with meaning, and prevent that fluid is in retaining piece 23 peripheries and take between the hole and circulate.
Said structure mainly is with a media: retaining piece 23, be located in the passage, and O shape ring is arranged on the retaining piece 23, by this, O shape ring promptly must not fix with glue, can improve in the structure of Fig. 1, O shape ring easily comes off from takeing on the hole, and O shape ring is subjected to viscose glue to influence its mechanical disappearance.
Yet still there is work disappearance shown in Figure 1 in said structure, that is:
One, in this controller 20, puts between the screw 27 and this O shape ring of involution assembly 26, still have work wall thickness, the not good shortcoming of structural strength in this.
Two, this shoulder hole 221 still must be quite accurate in processing, and the beginning can be provided with for retaining piece 23.
Three, coat the glue of takeing between hole and retaining piece, still can be spilled over to passage 22, it is sticking that ball 28 is stained with, and the super stream of influence cuts off effect.
Four, the super stream cut-out value of each controller is still for fixing.
In addition, retaining piece 23 is packed into outside passage 22 in the passage, and build-in is in the upright process of the group in shoulder hole, owing to be the assembling process for elongated passageway, the situation of the upright very easily generative center skew of the group of retaining piece 23; And, also very easily making retaining piece 23 produce wing songs, gluing inequality in order to the glue of this retaining piece 23 of cementation, the situation of retaining piece 23 off-centrings, these factors all can change the gap between O shape ring and ball, and super flow valuve is changed.
The utility model purport is commonly used the disappearance of safe traffic controller in solution, and promptly its fundamental purpose is to provide a kind of structure-improved of safe traffic controller, and it has preferable structural strength.
Another purpose of the present utility model is to provide a kind of structure-improved of safe traffic controller, and the precision requirement of its passage is lower, is easy to processing.
A purpose more of the present utility model is to provide a kind of structure-improved of safe traffic controller, and it does not use viscose glue, can not influence super flow valuve.
Another purpose of the present utility model is to provide a kind of structure-improved of safe traffic controller, and its super stream cuts off to be worth adjusting to change.
Another purpose of the present utility model is to provide a kind of structure-improved of safe traffic controller, and its O shape ring has preferable concentric effect with ball.
The structure-improved of a kind of safe traffic controller of the utility model includes:
One housing, the passage that inner tool one is horizontal is to establish a stop section in this passage; This housing is established a bolt apertures in this passage top, is communicated with this passage;
One static holding piece is a hollow cylinder, and in axial formation one axis hole, the side face apical margin of this static holding piece is established a perforate, is communicated in axis hole, forms a position that holds ball in this perforate below; This axis hole perisporium is to establish one to hold ring, is close in this perforate; This static holding piece is to be installed in the passage, and its inner is towards this stop section; This perforate is corresponding to this bolt apertures; This appearance ring is that the boundary is between this stop section and this perforate;
One seal ring is installed in this appearance ring;
One ball is installed in and holds the ball position in the axis hole of this static holding piece;
One airtight element is located between the inner and this stop section of this static holding piece;
Positioning piece is at least one through hole of axial tool; This keeper is to be installed in this passage, in order to locate this static holding piece, makes this airtight element be subjected to urging of this static holding piece and this stop section, produces airtight effect; This through hole is to be communicated with the axis hole of this static holding piece, the supplied gas circulation;
The one involution button groups in order to this ball of ejection is located at this bolt apertures;
Wherein: the shaft hole inner wall of this static holding piece is established a ring wall; Other has: a limit body is the ring body of a hollow, and one end is to establish the less bulge loop of an internal diameter; This limit body be with this bulge loop from the inner build-in of this static holding piece in this axis hole, be maintenance one appropriate intervals between this bulge loop and this ring wall, form this tank;
Wherein: this keeper is to be located in this passage in the mode of adjustable position;
Wherein: be to establish a joint portion in this passage; Be to establish a junction on this keeper; This keeper is to be connected in this joint portion with this connecting portion.
Is the effect that can further understand the purpose of this utility model, feature and be reached, below lifts preferred embodiment of the present utility model now, and after cooperating graphic being described in more detail in, wherein, graphic is arranged to:
Fig. 1 shows the structural drawing of commonly using a kind of safe traffic controller.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is a structural drawing of commonly using another kind of safe traffic controller.
Fig. 4 is the combination section of the utility model one preferred embodiment.
Fig. 5 is an exploded perspective view of being located at the element in the housing among Fig. 4.
Fig. 6 generally is same as Fig. 4, shows the constitutional diagram of its start.
At first consult Fig. 4 and shown in Figure 5, safe traffic controller 30 provided by the utility model includes:
One housing 40, its inner tool one passage 42 is used for the methane gas circulation, and a stop section 44 is established in these passage 42 inside.
One static holding piece 50 is the cylindrical shell of a hollow, and in axial formation one axis hole 52.The side face apical margin of this static holding piece 50 is established a perforate 53, is communicated in this axis hole 52, is the position that holds ball in this formed space, perforate 53 belows.In these axis hole 52 perisporiums are appearance rings 54 of establishing an indent, as shown in Figure 4, and in close proximity to this perforate 53.This static holding piece 50 is to be installed in this passage 42, and this perforate 53 is corresponding to the set bolt apertures 46 of this housing 40.This appearance ring 54 is that the boundary is between this stop section 44 and this perforate 53.
One seal ring 60 is an O type ring, is installed in this appearance ring 54, holds the ball position and be right against this.
One ball 70 is installed on and holds the ball position in the axis hole 52 of this static holding piece 50.
One airtight element 75 is an O shape ring, is located between the inner and this stop section 44 of this static holding piece 50.
Positioning piece 80 is in axially having a through hole 82.This keeper 80 is that the openend from this passage 42 is installed in this passage, and with the set connecting portion 84 of its side face, is external thread, be connected in this passage 42 joint portion 48 set in the outer end, be internal thread, by this, this keeper 80 promptly is located in this passage in the mode of adjustable position.This keeper 80 is resisted against the outer end of this static holding piece 50, toward interior ejection, makes this airtight element 75 be subjected to the compressing of this static holding piece 50 and this stop section 44 static holding piece 50, and produces airtight effect.This through hole 82 is to be communicated with the axis hole 52 of this static holding piece 50, the supplied gas circulation.
One involution button groups 90 is to commonly use member, holds and does not give unnecessary details.This involution button 90 is bolt apertures 46 that spiral shell is located at this housing 40, is positioned at ball 70 tops.
Above-mentioned tank 54 can be in this static holding piece 50 straight forming, also can establish a ring wall 55 in these axis hole 52 inwalls as this preferred embodiment those shown; Other has: a stopper slot 56 as shown in Figure 5, is the ring body of a hollow, and one end is to establish the less bulge loop of an internal diameter 57.This limit body 56 be with this bulge loop 57 from these static holding piece 50 inner build-ins in this axis hole 52, this bulge loop 57 and 55 on this ring wall are to keep an appropriate intervals, and form this tank 54.This static holding piece 50 is promptly with these limit body 56 these airtight elements 75 of compressing.
Utility model is when using, and the gas fluid is to enter from the passage front end, flows through after this decides the axis hole 52 of through hole 82, static holding piece 50 of part 80, is supplied in Gas appliance.Under normal condition, the gas runner can't produce closed phenomenon.
When pipe breakage because of gas-fired equipment, when methane gas is leaked in a large number, the path that ball 70 apical margins and seal ring are 60, because of rate of flow of fluid height pressure reduces, cause the pressure of ball top less, the action of pressure in the runner is less with the pressure of this ball top of ejection, action of pressure in the runner with these ball 70 driving fits of ejection in this seal ring 60, as shown in Figure 6, and then seal this passage 42, to cut off fluid.
After fault is got rid of, push this involution button groups 90 again, make its pressure welding 92 that ball 70 is pushed away this seal ring 60, reply the proper state of Fig. 4, make the passage overline unimpeded, for reusing.
Structure provided by the utility model is to have following effect:
One, structure of the present utility model can make involution button groups 90 completely near this static holding piece 50, except the stroke that can shorten its depression bar 92, primary, the position that is provided with at the involution button, do not have as the person of commonly using, the part of housing has the situation of wall thickness, so have preferable structural strength.
Two, be to produce airtight effect between this passage 42 and the static holding piece 50, need ask high precision, can allow bigger mismachining tolerance, so comparatively convenient in the processing so must there is no with interior this passage of being processed into this airtight element 75.
Three, this static holding piece 50 is that the mode of processing is in addition made, and is not the part of enclosure interior, so the control of machining precision is more or less freely.
Four, this seal ring 60 can be subjected to good location in this appearance ring 54, needn't fix by gluing, that is structure of the present utility model all need not be used glue, and ball can not take place is stained with sticking situation by glue, the normal start of maintenance ball.
Five, in the structure of the present utility model, can produce multiple static holding piece 50,, use forming different super flow valuves with the seal ring 60 and the ball 70 of collocation different size with different inner diameters.In other words, the utility model also need not to change the size of housing and passage, only need make the static holding piece 50 of different size, it is installed in housing after, i.e. the different super flow valuve of tool, therefore, must make and stock person in a large number, only be the static holding piece 50 of this small size, but not housing, so escapable cost and stock, and superfluid is easy to adjust change.
Six, the utility model is that seal ring 60 and ball 50 all are located in this static holding piece 50, and the structure of static holding piece 50 and precision are easy to control, so the cooperation position of seal ring 60 and ball 70 and concentricity are all preferable, super stream cut-out value is constant, accurate.
Seven, the utility model need not use viscose glue, so the elasticity of seal ring 60, flexible and impermeability can be not influenced.
Eight, this airtight element 75 is to be compressed.Therefore, after this static holding piece 50 was held by this keeper, the position of being located also can be adjusted, and made the bolt apertures 46 of this housing 40 can be to the perforate 53 over against static holding piece 50, so this bolt apertures in processing and manufacturing, can allow site error slightly.
The structure initiative of the utility model in ware, and the enhancement of the many practical effects of tool, file an application in the whence in accordance with the law.
Claims (4)
1, a kind of structure-improved of safe traffic controller includes:
One housing, the passage that inner tool one is horizontal is to establish a stop section in this passage; This housing is established a bolt apertures in this passage top, is communicated with this passage; It is characterized in that:
One static holding piece is a hollow cylinder, and in axial formation one axis hole, the side face apical margin of this static holding piece is established a perforate, is communicated in axis hole, forms a position that holds ball in this perforate below; This axis hole perisporium is to establish one to hold ring, is close in this perforate; This static holding piece is to be installed in the passage, and its inner is towards this stop section; This perforate is corresponding to this bolt apertures; This appearance ring is that the boundary is between this stop section and this perforate;
One seal ring is installed in this appearance ring;
One ball is installed in and holds the ball position in the axis hole of this static holding piece;
One airtight element is located between the inner and this stop section of this static holding piece;
Positioning piece is at least one through hole of axial tool; This keeper is to be installed in this passage, in order to locate this static holding piece, makes this airtight element be subjected to urging of this static holding piece and this stop section, produces airtight effect; This through hole is to be communicated with the axis hole of this static holding piece, the supplied gas circulation;
The one involution button groups in order to this ball of ejection is located at this bolt apertures.
2, the structure-improved of safe traffic controller as claimed in claim 1 is characterized in that, wherein: the shaft hole inner wall of this static holding piece is established a ring wall; Other has: a limit body is the ring body of a hollow, and one end is to establish the less bulge loop of an internal diameter; This limit body be with this bulge loop from the inner build-in of this static holding piece in this axis hole, be maintenance one appropriate intervals between this bulge loop and this ring wall, form this tank.
3, the structure-improved of safe traffic controller as claimed in claim 1 is characterized in that, wherein: this keeper is to be located in this passage in the mode of adjustable position.
4, the structure-improved of safe traffic controller as claimed in claim 3 is characterized in that, wherein: be to establish a joint portion in this passage; Be to establish a junction on this keeper; This keeper is to be connected in this joint portion with this connecting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98251504 CN2368058Y (en) | 1998-12-30 | 1998-12-30 | Improved structure of safety flow controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98251504 CN2368058Y (en) | 1998-12-30 | 1998-12-30 | Improved structure of safety flow controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2368058Y true CN2368058Y (en) | 2000-03-08 |
Family
ID=33995450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98251504 Expired - Fee Related CN2368058Y (en) | 1998-12-30 | 1998-12-30 | Improved structure of safety flow controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2368058Y (en) |
-
1998
- 1998-12-30 CN CN 98251504 patent/CN2368058Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |