CN205331635U - Two -stage leak protection connecting pipe - Google Patents
Two -stage leak protection connecting pipe Download PDFInfo
- Publication number
- CN205331635U CN205331635U CN201520962308.4U CN201520962308U CN205331635U CN 205331635 U CN205331635 U CN 205331635U CN 201520962308 U CN201520962308 U CN 201520962308U CN 205331635 U CN205331635 U CN 205331635U
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- wall
- internal diameter
- external diameter
- diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a two -stage leak protection connecting pipe, including the body, be provided with the internal thread on the inner wall of body, its key lies in: inner wall of the port is provided with the sealing ring on the body, and sealing ring upper end internal diameter equals the internal screw thread internal diameter, and sealing ring lower extreme internal diameter is lighter than the internal screw thread internal diameter, and smooth transition without leave makes progress down in the sealing ring, the outer wall subsides are equipped with the sealing washer, and sealing washer upper end external diameter is greater than the body external diameter, and sealing washer lower extreme external diameter equals body external diameter, sealing washer external diameter from the top down smooth transition, lower inner wall of the port is provided with the ring channel, seals the pad embedded being equipped with of ring channel, seals pad outer wall butt and on the ring channel lateral wall, seals the pad internal diameter and be less than the body internal diameter, seals pad thickness and is greater than ring channel lateral wall height. Beneficial effect: simple structure, the convenient dismantlement, through set up the sealing washer at connecting pipe upper end inner wall, the outside subsides in upper end is equipped with the sealing ring, and the lower extreme inner wall sets up sealed the pad, and sealed effect improves greatly, improves the anti -seismic performance of pipe connection simultaneously.
Description
Technical field
This utility model belongs to connecting pipeline structure technical field, specifically, relates to a kind of two-stage leakproof connecting tube。
Background technology
Melted for connecting portion rear high temperature bond is formed or be formed by connecting by threaded engagement with the connection of water pipe head typically via heat melting device by water pipe, but, by the water pipe that heat melting device connects, connect blow-by if installing bad being susceptible to and leak, and by water pipe not easily laid-up that this kind of mode connects；By the water pipe that threaded engagement connects, it is necessary to use connecting tube, but existing connecting tube poor sealing, the water capacity is easily from joint leadkage。
Prior art shortcoming: water pipe is bad with the connection sealing of water pipe head, there is leakage inconvenience laid-up in the water pipe connected by heat melting device；Using the water pipe that connecting tube connects, water is easily from joint leadkage, and the impact that junction is easily rocked occurs to loosen, poor seismic behavior。
Utility model content
For solving above technical problem, the purpose of this utility model is in that to provide a kind of sealing height, mount and dismount convenient two-stage leakproof connecting tube。Concrete technical scheme is as follows:
A kind of two-stage leakproof connecting tube, including body, the inwall of described body is provided with female thread, it it is critical only that: described body upper port inwall is provided with sealing ring, described sealing ring upper-end inner diameter is equal to the internal diameter of described female thread, described sealing ring bottom diameter is less than the internal diameter of described female thread, and described sealing ring internal diameter is bottom-up to be seamlessly transitted；
Outer wall has been sticked sealing ring, and described sealing ring upper end external diameter is more than the external diameter of described body, and described sealing ring lower end external diameter is equal to the external diameter of described body, and described sealing ring external diameter seamlessly transits from top to bottom；
Lower port inwall is provided with cannelure, it is embedded with sealing gasket in described cannelure, the outer wall of described sealing gasket is connected on the sidewall of described cannelure, and the internal diameter of described sealing gasket is less than the internal diameter of described body, and the thickness of described sealing gasket is more than the height of described cannelure sidewall。
Connecting tube based on said structure, in use, need to insert in water pipe head by this connecting tube, sealing gasket place end is connected on the limited step of water pipe head, sealing ring is close on described body, and along with stretching into of connecting tube, sealing ring is extruded by the inwall of water pipe head gradually, fill up the gap between described body and water pipe head, it is achieved the sealing between connecting tube body and water pipe head；When extension tube attached is screwed into body, sealing ring can be influenced by crimp, fills up the gap between connecting tube inboard wall of tube body and extension tube attached outer wall, until the termination of extension tube attached is connected on described sealing gasket, it is achieved the two-stage of extension tube attached seals。
In the specific implementation, described sealing ring, sealing ring and sealing gasket all adopt food stage encapsulant to make, food stage sealed material good seal performance, do not produce harmful substance。
Beneficial effect: simple in construction, convenient dismounting；By arranging sealing ring at connecting tube upper end inwall, be sticked outside upper end sealing ring, and lower end inner wall arranges sealing gasket, and sealing effectiveness is greatly improved, and improves the anti-seismic performance that pipeline connects simultaneously。
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model。
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail:
A kind of two-stage leakproof connecting tube as shown in Figure 1, including body 3, the inwall of described body 3 is provided with female thread 31, it it is critical only that: described body 3 upper port inwall is provided with sealing ring 32, described sealing ring 32 upper-end inner diameter is equal to the internal diameter of described female thread 31, described sealing ring 32 bottom diameter is less than the internal diameter of described female thread 31, and described sealing ring 32 internal diameter is bottom-up to be seamlessly transitted；
As can be seen from Figure 1, outer wall has been sticked sealing ring 33, and described sealing ring 33 upper end external diameter is more than the external diameter of described body 1, and described sealing ring 33 lower end external diameter is equal to the external diameter of described body 1, and described sealing ring 33 external diameter seamlessly transits from top to bottom；
By Fig. 1 it is also seen that, lower port inwall is provided with cannelure 34, it is embedded with sealing gasket 35 in described cannelure 34, the outer wall of described sealing gasket 35 is connected on the sidewall of described cannelure 34, the internal diameter of described sealing gasket 35 is less than the internal diameter of described body 1, and the thickness of described sealing gasket 35 is more than the height of described cannelure 34 sidewall。
Connecting tube based on said structure, in use, need to insert in water pipe head by this connecting tube, sealing gasket 35 place end is connected on the limited step of water pipe head, sealing ring 32 is close on described body 1, and along with stretching into of connecting tube, sealing ring 32 is extruded by the inwall of water pipe head gradually, fill up the gap between described body 1 and water pipe head, it is achieved the sealing between connecting tube body 1 and water pipe head；When extension tube attached is screwed into body 1, sealing ring 33 can be influenced by crimp, fills up the gap between connecting tube body 1 inwall and extension tube attached outer wall, until the termination of extension tube attached is connected on described sealing gasket 35, it is achieved the two-stage of extension tube attached seals。
In the specific implementation, described sealing ring 32, sealing ring 33 and sealing gasket 35 all adopt food stage encapsulant to make, and food stage sealed material good seal performance does not produce harmful substance。
Claims (6)
1. a two-stage leakproof connecting tube, including body (3), the inwall of described body (3) is provided with female thread (31), it is characterized in that: described body (3) upper port inwall is provided with sealing ring (32), outer wall has been sticked sealing ring (33), lower port inwall is provided with cannelure (34), is embedded with sealing gasket (35) in described cannelure (34)。
2. two-stage leakproof connecting tube according to claim 1, it is characterized in that: described sealing ring (32) upper-end inner diameter is equal to the internal diameter of described female thread (31), described sealing ring (32) bottom diameter is less than the internal diameter of described female thread (31), and described sealing ring (32) internal diameter is bottom-up to be seamlessly transitted。
3. two-stage leakproof connecting tube according to claim 1, it is characterized in that: described sealing ring (33) upper end external diameter is more than the external diameter of described body (3), described sealing ring (33) lower end external diameter is equal to the external diameter of described body (3), and described sealing ring (33) external diameter seamlessly transits from top to bottom。
4. two-stage leakproof connecting tube according to claim 1, it is characterized in that: the outer wall of described sealing gasket (35) is connected on the sidewall of described cannelure (34), the internal diameter of described sealing gasket (35) is less than the internal diameter of described body (3)。
5. two-stage leakproof connecting tube according to claim 4, it is characterised in that: the thickness of described sealing gasket (35) is more than the height of described cannelure (34) sidewall。
6. according to the arbitrary described two-stage leakproof connecting tube of claim 1-5, it is characterised in that: described sealing ring (32), sealing ring (33) and sealing gasket (35) all adopt food stage encapsulant to make。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520962308.4U CN205331635U (en) | 2015-11-26 | 2015-11-26 | Two -stage leak protection connecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520962308.4U CN205331635U (en) | 2015-11-26 | 2015-11-26 | Two -stage leak protection connecting pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205331635U true CN205331635U (en) | 2016-06-22 |
Family
ID=56213682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520962308.4U Expired - Fee Related CN205331635U (en) | 2015-11-26 | 2015-11-26 | Two -stage leak protection connecting pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205331635U (en) |
-
2015
- 2015-11-26 CN CN201520962308.4U patent/CN205331635U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 Termination date: 20161126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |