CN204005020U - A kind of shutoff saddle type electric melting pipe fittings - Google Patents
A kind of shutoff saddle type electric melting pipe fittings Download PDFInfo
- Publication number
- CN204005020U CN204005020U CN201420432557.8U CN201420432557U CN204005020U CN 204005020 U CN204005020 U CN 204005020U CN 201420432557 U CN201420432557 U CN 201420432557U CN 204005020 U CN204005020 U CN 204005020U
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- Prior art keywords
- vent
- valve rod
- shutoff
- type electric
- pipe fittings
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- Expired - Lifetime
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- 238000002844 melting Methods 0.000 title claims abstract description 28
- 230000008018 melting Effects 0.000 title claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims description 11
- 238000010030 laminating Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000005485 electric heating Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Branch Pipes, Bends, And The Like (AREA)
Abstract
The utility model provides a kind of shutoff saddle type electric melting pipe fittings, belongs to field of mechanical technique.It has solved existing kind of shutoff saddle type electric melting pipe fittings and there will be the technical problems such as the situation of gas leakage.This shutoff saddle type electric melting pipe fittings, comprise upper saddle seat and obstruction, upper saddle seat has plugging hole, obstruction is threaded in plugging hole and plugging hole is sealed, in obstruction, have along its axial arranged vent, the inner of vent is connected with plugging hole, in vent, be provided with valve rod, valve rod can moving axially along vent, one end of valve rod can be by the inner sealing of vent, between the other end of valve rod and obstruction, be provided with elastic component, elastic component has all the time by the trend of the inner sealing of vent one end of valve rod.The utlity model has the advantage that can prevent that gas from leaking from pipe fitting.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of shutoff saddle type electric melting pipe fittings.
Background technique
In gas ductwork construction, the in the situation that of ventilation operation, impact for fear of the air feed to user, conventionally adopt with the mode of gas operation and construct.Shutoff saddle type electric melting pipe fittings is to be exclusively used in repairing in gas operation on tubing, to scratch and the special pipe fitting of tiny gas leakage point.
Shutoff saddle type electric melting pipe fittings comprises upper saddle seat and obstruction, upper saddle seat has arc surface, the arc surface of upper saddle seat is close to PE tube outer surface by top plate and bottom plate when mounted, upper saddle seat has and on arc surface, is placed with electric heating wire, heat electric heating wire by electro-fusion welding machine the arc surface of PE pipe and saddle is merged completely, after cooling, become one.On upper saddle seat, have plugging hole, plugging hole is communicated with PE pipe, by stopping up, plugging hole is sealed.The disclosed a kind of blocking device of for example Chinese patent literature [CN 201521754 U], is provided with corresponding tapped hole at the inner round wall of saddle, and the cylinder perisporium of plugging block is provided with screw thread, and plugging block is connected with saddle spiral.In this patent, by plugging block being fixed on the plugging hole of upper saddle seat plugging hole sealing, cause the pressure imbalance in the space up and down of plugging block, there will be the situation of gas leakage; In the time taking out plugging block, due to pressure imbalance, there is security risk.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of shutoff saddle type electric melting pipe fittings, and the technical problem that the utility model solves is prevent pipe fitting gas leakage and ensure construction safety.
The purpose of this utility model can realize by following technical proposal:
A kind of shutoff saddle type electric melting pipe fittings, comprise upper saddle seat and obstruction, described upper saddle seat has plugging hole, it is characterized in that, described obstruction is threaded in plugging hole and plugging hole is sealed, in described obstruction, have along its axial arranged vent, the inner of described vent is connected with plugging hole, in described vent, be provided with valve rod, described valve rod can moving axially along vent, one end of described valve rod can be by the inner sealing of vent, between the other end of described valve rod and obstruction, be provided with elastic component, described elastic component has all the time by the trend of the inner sealing of vent one end of valve rod.
Upper saddle seat is fixed on tubing, stop up and be mounted in plugging hole by plugging device, in the time that dress stops up, plugging device can be against the upper end of valve rod, make the lower end of valve rod open the inner of vent, space in tubing is communicated with by vent with extraneous, makes the pressure balance on both sides, after installing, the lower end of valve rod is sealed the inner of vent by elastic component, by the space in tubing and the extraneous disconnection that is communicated with, realize sealing; After installation, can prevent Leakage Gas by this structure, the row pressure of first exitting in the time of dismounting, improves the Security of construction.
In above-mentioned shutoff saddle type electric melting pipe fittings, described valve rod comprises the body of rod and is positioned at the butting section of body of rod one end, described butting section is tabular, one end that the described body of rod is connected with butting section passes the inner of vent, on the interior edge face of described obstruction, be fixed with seal ring one, described butting section and seal ring one against.The inner of vent is sealed against realizing by butting section and seal ring one.
As another kind of situation, in above-mentioned shutoff saddle type electric melting pipe fittings, described valve rod comprises the body of rod and is positioned at the butting section of body of rod one end, described butting section is frustoconic shape, one end that described butting section diameter is less is connected with the body of rod, the inner opening of described vent is horn-like, the side face of described butting section can with the inner hole wall laminating of vent against.Inner hole wall by butting section and vent seals the inner of vent against realizing.
In above-mentioned shutoff saddle type electric melting pipe fittings, described elastic component is spring, described spring housing on valve rod, the two ends of described spring respectively with the hole wall of valve rod and vent against, described spring remains compressive state.By the elastic force of spring, butting section and seal ring one are remained against trend.
As another kind of situation, in above-mentioned shutoff saddle type electric melting pipe fittings, described elastic component is at least two elastic rope, the relative stem shaft of described elastic rope is to even setting, one end of described elastic rope is fixed on valve rod and is positioned at one end of vent, the other end of elastic rope and the hole wall of vent are fixed, and the relative valve rod of described elastic rope tilts.Pull valve rod to make the butting section of valve rod and remain against trend with seal ring one by the elastic force of elastic rope.
In above-mentioned shutoff saddle type electric melting pipe fittings, on the hole wall of described vent near outer end, there is annular groove, in described annular groove, be fixed with two bayonet locks, two bayonet locks are all parallel with the center line of vent, line between two described bayonet locks is crossing with the center line of vent, on the exterior edge face of described obstruction, have two recesses, described recess is connected with annular groove with vent, the center line symmetry of two relative vents of described recess.Import plugging device into vent in installation, the roll pin on plugging device enters annular groove from recess, rotates plugging device, thereby roll pin can rotate against driving to stop up with bayonet lock.
In above-mentioned shutoff saddle type electric melting pipe fittings, on described upper saddle seat, also there is bulge loop, on the side face of described obstruction near exterior edge face, there is annular convex shoulder, on the inner circle wall of described bulge loop, be fixed with seal ring two, described annular convex shoulder be resisted against on the inner circle wall of bulge loop and with seal ring two against.When annular convex shoulder and upper saddle seat against time represent to stop up and be in place, seal ring two and annular convex shoulder against further prevent gas leakage may, improve sealing.
In above-mentioned shutoff saddle type electric melting pipe fittings, on described upper saddle seat, be also covered with protective hat, described protective hat is threaded with upper saddle seat, is fixed with seal ring three on the inner bottom surface of described protective hat, described bulge loop and seal ring three against.Protective hat, by whole the plugging hole of upper saddle seat sealing, has further improved sealing.
Compared with prior art, this shutoff saddle type electric melting pipe fittings has space and the ambient pressure balance that can realize in tubing, can prevent Leakage Gas after installation, and the row pressure of first exitting in the time of dismounting, improves the advantage of the Security of construction.
Brief description of the drawings
Fig. 1 is the structural representation of this shutoff saddle type electric melting pipe fittings.
Fig. 2 is the structural representation that in the present embodiment one, upper saddle seat is connected with obstruction.
Fig. 3 is the structural representation that in the present embodiment two, upper saddle seat is connected with obstruction.
In figure, 1, upper saddle seat; 11, plugging hole; 12, bulge loop; 13, seal ring one; 2, stop up; 21, vent; 22, annular groove; 23, bayonet lock; 24, annular convex shoulder; 25, seal ring two; 3, protective hat; 31, seal ring three; 4, valve rod; 41, the body of rod; 42, butting section; 5, spring; 6, tubing; 61, top plate; 62, bottom plate.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one
A kind of shutoff saddle type electric melting pipe fittings, as shown in Figure 1, comprise upper saddle seat 1 and stop up 2, upper saddle seat 1 has plugging hole 11, stop up 2 and be threaded in plugging hole 11 and plugging hole 11 is sealed, be also covered with protective hat 3 on upper saddle seat 1, protective hat 3 is threaded with upper saddle seat 1, on the inner bottom surface of protective hat 3, be fixed with seal ring 3 31, bulge loop 12 and seal ring 3 31 against.
As depicted in figs. 1 and 2, stop up on 2 and have along its axial arranged vent 21, the inner of vent 21 is connected with plugging hole 11, is provided with valve rod 4 in vent 21, and valve rod 4 can moving axially along vent 21, one end of valve rod 4 can be by the inner sealing of vent 21, between the other end of valve rod 4 and obstruction 2, be provided with elastic component, elastic component is spring 5, and spring 5 is enclosed within on valve rod 4, the two ends of spring 5 respectively with the hole wall of valve rod 4 and vent 21 against, spring 5 remains compressive state.By the elastic force of spring 5, butting section 42 and seal ring 1 are remained against trend.
As depicted in figs. 1 and 2, valve rod 4 comprises the body of rod 41 and the butting section 42 that is positioned at the body of rod 41 one end, and butting section 42 is tabular, and one end that the body of rod 41 is connected with butting section 42 passes the inner of vent 21, stop up on 2 interior edge face and be fixed with seal ring 1, butting section 42 and seal ring 1 against.The inner of vent 21 is sealed against realizing by butting section 42 and seal ring 1.
As depicted in figs. 1 and 2, on the hole wall of vent 21 near outer end, there is annular groove 22, in annular groove 22, be fixed with two bayonet locks 23, two bayonet locks 23 are all parallel with the center line of vent 21, line between two bayonet locks 23 is crossing with the center line of vent 21, on the exterior edge face of obstruction 2, have two recesses, recess is connected with annular groove 22 with vent 21, the center line symmetry of two relative vents 21 of recess.Import plugging device into vent 21 in installation, the roll pin on plugging device enters annular groove 22 from recess, rotates plugging device, thereby roll pin can stop up 2 rotations against driving with bayonet lock 23.
As depicted in figs. 1 and 2, on upper saddle seat 1, also there is bulge loop 12, stop up on 2 side faces near exterior edge face and there is annular convex shoulder 24, on the inner circle wall of bulge loop 12, be fixed with seal ring 2 25, annular convex shoulder 24 be resisted against on the inner circle wall of bulge loop 12 and with seal ring 2 25 against.When annular convex shoulder 24 and upper saddle seat 1 against time represent to stop up 2 and be in place, seal ring 2 25 and annular convex shoulder 24 against further prevent gas leakage may, improve sealing.
Upper saddle seat 1 is fixed on tubing 6 by top plate 61 and bottom plate 62, stopping up 2 is mounted in plugging hole 11 by plugging device, stop up 2 o'clock plugging devices and can be against the upper end of valve rod 4 at dress, make the lower end of valve rod 4 open the inner of vent 21, space in tubing 6 is communicated with by vent 21 with extraneous, the pressure balance on both sides, after installing, the lower end of valve rod 4 is sealed the inner of vent 21 by elastic component, by the space in tubing 6 and the extraneous disconnection that is communicated with, realize sealing; After installation, can prevent Leakage Gas by this structure, the row pressure of first exitting in the time of dismounting, improves the Security of construction.
Embodiment two
The present embodiment is basic identical with embodiment one structure and principle, different place is: as shown in Figure 3, valve rod 4 comprises the body of rod 41 and is positioned at the butting section 42 of the body of rod 41 one end, butting section 42 is frustoconic shape, one end that butting section 42 diameters are less is connected with the body of rod 41, the inner opening of vent 21 is horn-like, the side face of butting section 42 can with the inner hole wall laminating of vent 21 against.The inner of vent 21 is sealed against realizing by butting section 42 and the inner hole wall of vent 21.
Embodiment three
The present embodiment is basic identical with embodiment one structure and principle, different place is: elastic component is at least two elastic rope, the relative stem shaft of elastic rope is to even setting, one end of elastic rope is fixed on valve rod and is positioned at one end of vent, the other end of elastic rope and the hole wall of vent are fixed, and the relative valve rod of elastic rope tilts.Pull valve rod to make the butting section of valve rod and remain against trend with seal ring one by the elastic force of elastic rope.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendments or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (8)
1. a shutoff saddle type electric melting pipe fittings, comprise upper saddle seat (1) and stop up (2), described upper saddle seat (1) has plugging hole (11), it is characterized in that, described obstruction (2) is threaded in plugging hole (11) and plugging hole (11) is sealed, in described obstruction (2), have along its axial arranged vent (21), the inner of described vent (21) is connected with plugging hole (11), in described vent (21), be provided with valve rod (4), described valve rod (4) can moving axially along vent (21), one end of described valve rod (4) can be by the inner sealing of vent (21), between the other end of described valve rod (4) and obstruction (2), be provided with elastic component, described elastic component has all the time by the trend of the inner sealing of vent (21) one end of valve rod (4).
2. shutoff saddle type electric melting pipe fittings according to claim 1, it is characterized in that, described valve rod (4) comprises the body of rod (41) and is positioned at the butting section (42) of the body of rod (41) one end, described butting section (42) is tabular, one end that the described body of rod (41) is connected with butting section (42) passes the inner of vent (21), on the interior edge face of described obstruction (2), be fixed with seal ring one (13), described butting section (42) and seal ring one (13) against.
3. shutoff saddle type electric melting pipe fittings according to claim 1, it is characterized in that, described valve rod (4) comprises the body of rod (41) and is positioned at the butting section (42) of the body of rod (41) one end, described butting section (42) is frustoconic shape, one end that described butting section (42) diameter is less is connected with the body of rod (41), the inner opening of described vent (21) is horn-like, the side face of described butting section (42) can with the inner hole wall laminating of vent (21) against.
4. according to the shutoff saddle type electric melting pipe fittings described in claim 1 or 2 or 3, it is characterized in that, described elastic component is spring (5), described spring (5) is enclosed within on valve rod (4), the two ends of described spring (5) respectively with the hole wall of valve rod (4) and vent (21) against, described spring (5) remains compressive state.
5. according to the shutoff saddle type electric melting pipe fittings described in claim 1 or 2 or 3, it is characterized in that, described elastic component is at least two elastic rope, the relative valve rod of described elastic rope (4) axially evenly arranges, one end of described elastic rope is fixed on valve rod (4) and is positioned at one end of vent (21), the hole wall of the other end of elastic rope and vent (21) is fixed, and the relative valve rod of described elastic rope (4) tilts.
6. according to the shutoff saddle type electric melting pipe fittings described in claim 1 or 2 or 3, it is characterized in that, described vent (21) has annular groove (22) near on the hole wall of outer end, in described annular groove (22), be fixed with two bayonet locks (23), two bayonet locks (23) are all parallel with the center line of vent (21), line between two described bayonet locks (23) is crossing with the center line of vent (21), on the exterior edge face of described obstruction (2), there are two recesses, described recess is connected with annular groove (22) with vent (21), the center line symmetry of two relative vents of described recess (21).
7. according to the shutoff saddle type electric melting pipe fittings described in claim 1 or 2 or 3, it is characterized in that, on described upper saddle seat (1), also there is bulge loop (12), described obstruction (2) has annular convex shoulder (24) near on the side face of exterior edge face, on the inner circle wall of described bulge loop (12), be fixed with seal ring two (25), described annular convex shoulder (24) be resisted against on the inner circle wall of bulge loop (12) and with seal ring two (25) against.
8. shutoff saddle type electric melting pipe fittings according to claim 7, it is characterized in that, on described upper saddle seat (1), be also covered with protective hat (3), described protective hat (3) is threaded with upper saddle seat (1), on the inner bottom surface of described protective hat (3), be fixed with seal ring three (31), described bulge loop (12) and seal ring three (31) against.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420432557.8U CN204005020U (en) | 2014-08-01 | 2014-08-01 | A kind of shutoff saddle type electric melting pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420432557.8U CN204005020U (en) | 2014-08-01 | 2014-08-01 | A kind of shutoff saddle type electric melting pipe fittings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204005020U true CN204005020U (en) | 2014-12-10 |
Family
ID=52045023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420432557.8U Expired - Lifetime CN204005020U (en) | 2014-08-01 | 2014-08-01 | A kind of shutoff saddle type electric melting pipe fittings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204005020U (en) |
-
2014
- 2014-08-01 CN CN201420432557.8U patent/CN204005020U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141210 |
|
| CX01 | Expiry of patent term |