CN210770983U - Novel pressure maintaining nut - Google Patents
Novel pressure maintaining nut Download PDFInfo
- Publication number
- CN210770983U CN210770983U CN201921962705.6U CN201921962705U CN210770983U CN 210770983 U CN210770983 U CN 210770983U CN 201921962705 U CN201921962705 U CN 201921962705U CN 210770983 U CN210770983 U CN 210770983U
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- China
- Prior art keywords
- rubber gasket
- joint
- nut
- truncated cone
- pressure maintaining
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Abstract
The utility model relates to a nut technical field, concretely relates to novel pressurize nut. The rubber gasket is arranged in the upper joint; the rubber gasket is of a truncated cone-shaped structure with a downward opening, and a cylindrical cushion block is arranged inside the rubber gasket; the circular hole is arranged on the upper connector of the circular truncated cone. The utility model discloses can satisfy the closed conduit simultaneously and suppress experimental effect under the prerequisite of not changing the nut, reduce manual operation's cost and time.
Description
Technical Field
The utility model relates to a nut technical field, concretely relates to novel pressurize nut.
Background
The pressure maintaining plastic nut of the existing air conditioner indoor unit is a nut with one closed end, and is connected with a copper joint of a refrigeration pipeline by utilizing threads to realize closing so as to keep a small amount of inert gas and refrigerant in the refrigeration pipeline of the air conditioner, so that the pressure in the pipeline is higher than the external pressure, and the phenomenon that the external air invades the inner wall of the oxidation pipeline of the refrigeration pipeline before the air conditioner is installed and used is avoided (the nut is discarded after a user installs the air conditioner). However, the air conditioner internal unit and the pressure maintaining nut do not have a device capable of displaying the pressure of the internal unit, whether gas in a refrigeration pipeline exists or not can be known only after the plastic nut is unscrewed when the air conditioner is installed, meanwhile, a pressing test needs to be adopted before the air conditioner is installed, the air leakage is detected through the airtightness of the air conditioner pipeline, the nut cannot meet related requirements, a valve needs to be installed firstly, and then the pressing test is carried out, so that time and labor are wasted.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve the problem that current nut can not satisfy the gas tightness and detect and provide a novel pressurize nut, the advantage that its gained is for satisfying the closed conduit simultaneously and carrying out the effect of suppressing the test under the prerequisite of not changing the nut, has reduced manual operation's cost and time.
The technical scheme of the utility model as follows:
the utility model provides a novel pressurize nut, includes one side open-ended outer joint and rubber gasket, its characterized in that: the outer joint comprises a truncated cone-shaped upper joint and a cylindrical lower joint, and a rubber gasket is arranged in the upper joint; the rubber gasket is of a truncated cone-shaped structure with a downward opening, and a cylindrical cushion block is arranged inside the rubber gasket; and a round hole is arranged on the upper connector in the shape of a circular truncated cone.
Preferably, the outer surface of the rubber gasket is matched with the inner surface of the upper joint, and the diameter of the cylindrical cushion block is equal to the diameter of the circle on the upper surface of the circular truncated cone of the rubber gasket. A rubber gasket is disposed within the outer joint against the inner surface of the upper joint.
Preferably, the thickness of the cylindrical cushion block is 1-2 mm. The pressurizing pressure is 3.5-4 MPa, 0MPa, the cylindrical cushion block is arranged, so that the air leakage of the needle head passing through the rubber gasket and the cylindrical cushion block through the round hole during pressurizing operation can be avoided, and the air in the pipeline can be kept at a certain pressure after the needle head is pulled out.
Preferably, the inner side surface of the cylindrical lower joint is provided with an internal thread. The internal thread in the lower joint is matched and screwed with the external thread of the pipeline copper pipe, and the screwed outer joint and the copper pipe compress the rubber gasket in the upper joint.
Preferably, the upper joint and the lower joint are of an integral structure, and the outer surface of the lower joint is provided with an anti-skid reinforcing rib. The setting of antiskid strengthening rib provides frictional force when only guaranteeing to rotate and is convenient for rotatory, and the intensity of outer joint can be guaranteed in the setting of strengthening rib simultaneously, reduces the damage that brings when operating.
The utility model has the advantages that:
the utility model discloses mechanism structural design is novel, and production and processing technology is simple, has reduced manufacturing cost, and the purchasing cost can effectually be practiced thrift for the customer to the pressurize of being convenient for.
Therefore, compared with the prior art, the utility model has the substantive characteristics and the progress, and the beneficial effects of the implementation are also obvious.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic sectional view of the present invention.
Fig. 3 is a schematic structural diagram of the rubber gasket of the present invention.
The anti-skid device comprises a rubber gasket 1, an upper connector 2, a lower connector 3, a cylindrical cushion block 4, a circular hole 5, an anti-skid reinforcing rib 6 and a copper pipe 7.
Detailed Description
Example 1
A novel pressure maintaining nut comprises an outer joint and a rubber gasket 1, wherein one side of the outer joint is provided with an opening, the outer joint comprises a truncated cone-shaped upper joint 2 and a cylindrical lower joint 3, and the rubber gasket 1 is arranged in the upper joint 2; the rubber gasket 1 is of a truncated cone-shaped structure with a downward opening, and a cylindrical cushion block 4 is arranged inside the rubber gasket 1; the circular truncated cone-shaped upper joint 2 is provided with a circular hole 5. The outer surface of the rubber gasket 1 is matched with the inner surface of the upper joint 2, and the diameter of the cylindrical cushion block 4 is equal to the circular diameter of the upper surface of the truncated cone of the rubber gasket 1. The thickness of the cylindrical spacer 4 is 1 mm. The inner side surface of the cylindrical lower joint 3 is provided with internal threads. The upper joint 2 and the lower joint 3 are of an integral structure, the outer surface of the lower joint 3 is provided with anti-skidding reinforcing ribs 6, and the anti-skidding reinforcing ribs 6 are uniformly distributed on the outer surface of the lower joint 3 and are provided with six reinforcing ribs. The internal thread in the lower joint 3 is matched and screwed with the external thread of the pipeline copper pipe 7, and the screwed outer joint and the copper pipe 7 compress the rubber gasket 1 in the upper joint 2.
Example 2
A novel pressure maintaining nut comprises an outer joint and a rubber gasket 1, wherein one side of the outer joint is provided with an opening, the outer joint comprises a truncated cone-shaped upper joint 2 and a cylindrical lower joint 3, and the rubber gasket 1 is arranged in the upper joint 2; the rubber gasket 1 is of a truncated cone-shaped structure with a downward opening, and a cylindrical cushion block 4 is arranged inside the rubber gasket 1; the circular truncated cone-shaped upper joint 2 is provided with a circular hole 5. The outer surface of the rubber gasket 1 is matched with the inner surface of the upper joint 2, and the diameter of the cylindrical cushion block 4 is equal to the circular diameter of the upper surface of the truncated cone of the rubber gasket 1. The thickness of the cylindrical spacer 4 is 2 mm. The inner side surface of the cylindrical lower joint 3 is provided with internal threads. The upper joint 2 and the lower joint 3 are of an integral structure, the outer surface of the lower joint 3 is provided with anti-skidding reinforcing ribs 6, and the anti-skidding reinforcing ribs 6 are uniformly distributed on the outer surface of the lower joint 3 and are provided with six reinforcing ribs.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The utility model provides a novel pressurize nut, includes one side open-ended outer joint and rubber gasket, its characterized in that: the outer joint comprises a truncated cone-shaped upper joint and a cylindrical lower joint, and a rubber gasket is arranged in the upper joint; the rubber gasket is of a truncated cone-shaped structure with a downward opening, and a cylindrical cushion block is arranged inside the rubber gasket; and a round hole is arranged on the upper connector in the shape of a circular truncated cone.
2. A novel pressure maintaining nut as claimed in claim 1, characterized in that: the outer surface of the rubber gasket is matched with the inner surface of the upper joint, and the diameter of the cylindrical cushion block is equal to the circular diameter of the upper surface of the circular table of the rubber gasket.
3. A novel pressure maintaining nut as claimed in claim 1, characterized in that: the thickness of the cylindrical cushion block is 1-2 mm.
4. A novel pressure maintaining nut as claimed in claim 1, characterized in that: and the inner side surface of the cylindrical lower joint is provided with an internal thread.
5. A novel pressure maintaining nut as claimed in claim 1, characterized in that: the upper joint and the lower joint are of an integrated structure, and the outer surface of the lower joint is provided with anti-skidding reinforcing ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921962705.6U CN210770983U (en) | 2019-11-13 | 2019-11-13 | Novel pressure maintaining nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921962705.6U CN210770983U (en) | 2019-11-13 | 2019-11-13 | Novel pressure maintaining nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210770983U true CN210770983U (en) | 2020-06-16 |
Family
ID=71038487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921962705.6U Active CN210770983U (en) | 2019-11-13 | 2019-11-13 | Novel pressure maintaining nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210770983U (en) |
-
2019
- 2019-11-13 CN CN201921962705.6U patent/CN210770983U/en active Active
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