CN202628738U - Multifunctional plastic nut - Google Patents

Multifunctional plastic nut Download PDF

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Publication number
CN202628738U
CN202628738U CN 201220201002 CN201220201002U CN202628738U CN 202628738 U CN202628738 U CN 202628738U CN 201220201002 CN201220201002 CN 201220201002 CN 201220201002 U CN201220201002 U CN 201220201002U CN 202628738 U CN202628738 U CN 202628738U
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CN
China
Prior art keywords
shell
packing ring
elastic caoutchouc
pressure
plastic nut
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.)
Active
Application number
CN 201220201002
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Chinese (zh)
Inventor
蒋水光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHUJI YIDING MACHINERY CO Ltd
Original Assignee
ZHUJI YIDING MACHINERY CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHUJI YIDING MACHINERY CO Ltd filed Critical ZHUJI YIDING MACHINERY CO Ltd
Priority to CN 201220201002 priority Critical patent/CN202628738U/en
Application granted granted Critical
Publication of CN202628738U publication Critical patent/CN202628738U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a multifunctional plastic nut. An opening is formed in one end of a shell; and a thread matched with a refrigeration pipeline copper joint is arranged in the inner wall of the opening. The multifunctional plastic nut is characterized in that a through hole communicated with an inner cavity of the shell is formed on the end surface of the other end of the shell; an elastic rubber washer for sensing the pressure change of the inner cavity is also fixed in the inner cavity of the shell and is tightly matched with the refrigeration pipeline copper joint; a gap for enabling the elastic rubber washer to extend and change is reserved between the end surface of the elastic rubber washer and the end surface of the other end of the shell; a pressure display rod can be limited in the through hole in a sliding mode; and one end of the pressure display rod is connected with the elastic rubber washer so as to slide in the through hole along with the motion of the elastic rubber washer.

Description

The multifunctional plastic nut
Technical field
The utility model relates to the kit that a kind of air-conditioning internal machine uses, especially for the plastic nut of air conditioner refrigeration pipe sealing.
Background technique
The nut of one one end sealing of the similar of existing air-conditioning internal machine pressurize plastic nut; Utilize and be connected on the copper sleeve of screw thread and refrigerant pipe and realize sealing; To keep a spot of inert gas and refrigerant in the refrigerant pipe of air conditioner; Make ducted pressure be higher than ambient pressure, avoid air-conditioning to install and use before ambient air invade refrigerant pipe oxidation inner-walls of duct (this plastics stifle treat just to abandon after the user installs an air-conditioner need not).But the device of machine pressure in whole air-conditioning internal machine (comprising the pressurize plastic nut) do not have again to show can learn just whether the gas in the refrigerant pipe has after can only when installing an air-conditioner, turning on plastic nut; This has brought difficulty with regard to the quality control of giving production firm, also brings uncertain factor to production technology.
Summary of the invention
The utility model will overcome the shortcoming that existing air-conditioning internal machine pressurize plastic nut can not show interior machine pressure, and the plastic nut of the reliable air-conditioning internal machine pressurize of gas pressure, good sealing effect, pressurize in a kind of display pipes automatically is provided.
The technological scheme that the utility model proposes is: the multifunctional plastic nut, and an end of its shell is shaped on opening, and the inwall of said opening is processed with the screw thread that matches with the refrigerant pipe copper sleeve; It is characterized in that: the other end end face of described shell has the through hole that communicates with shell inner cavity; Also be fixed for the elastic caoutchouc packing ring that the perception chamber pressure changes in the described shell inner cavity, described elastic caoutchouc packing ring is closely cooperating with the refrigerant pipe copper sleeve; Being provided with between the end face of described elastic caoutchouc packing ring and the described shell the other end end face to supply said elastic caoutchouc packing ring to carry out the space of telescopic variation; Other has a slidably spacing pressure-display bar in said through hole, and an end of described pressure-display bar is connected with described elastic caoutchouc packing ring, slides in said through hole with the motion of following the elastic caoutchouc packing ring.
Further, described elastic caoutchouc packing ring is provided with jack, and described pressure-display bar is plugged in the described jack.
The use principle of the utility model is: because plastic nut is provided with and can supplies the elasticity rubber washer to carry out the space of fore and aft motion; So the elastic caoutchouc packing ring carries out telescopic variation in various degree according to the gas pressure difference in the refrigerant pipe of being experienced, in the plastic nut through hole, move thereby drive the display pole of pressing; Boom end stretches out through hole as long as the operating personnel sees pressure-display, knows that promptly pressure adheres to specification greater than the external world in the pipeline; If in the pressure-display boom end withdrawal through hole, show that then manifold pressure reduces, the operating personnel need draw attention, and notices whether pipeline has the possibility of leakage.
The beneficial effect of the utility model is: but owing to be provided with the display unit of gas pressure in the visual perception refrigerant pipe on the plastic nut; This brings very big facility with regard to accurately judge the situation in the refrigerant pipe to the operating personnel, and very helps controllable quality; In addition, this plastic nut still can be realized sealing to air-conditioning internal machine, has good sealing effect, pressurize reliable characteristics.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation.
Fig. 2 is the outside schematic representation of the utility model.
Fig. 3 is the correlation schematic representation of elastic caoutchouc packing ring and pressure-display bar.
Embodiment
With reference to accompanying drawing:
The multifunctional plastic nut, an end of its shell 1 is shaped on opening 11, and the inwall of said opening 11 is processed with the screw thread 12 that matches with the refrigerant pipe copper sleeve; The other end end face of described shell 1 has the through hole 13 that communicates with shell 11 inner chambers, also is fixed for the elastic caoutchouc packing ring 2 that the perception chamber pressure changes in described shell 11 inner chambers, and described elastic caoutchouc packing ring 2 is closely cooperating with the refrigerant pipe copper sleeve; Being provided with between the end face of described elastic caoutchouc packing ring 2 and the described shell the other end end face to supply said elastic caoutchouc packing ring to carry out the space 14 of telescopic variation; Other has a slidably spacing pressure-display bar 3 in said through hole 13, and an end of described pressure-display bar 3 is connected with described elastic caoutchouc packing ring 2, slides in said through hole 13 with the motion of following elastic caoutchouc packing ring 2.
Further, described elastic caoutchouc packing ring 2 is provided with jack 21, and the end 31 of described pressure-display bar 3 is plugged in the described jack 21.
When plastic nut screwed in the copper sleeve of refrigerant pipe, the elastic caoutchouc packing ring was closely cooperating with the refrigerant pipe copper sleeve; Being provided with between the end face of elastic caoutchouc packing ring and the described plastic nut shell the other end end face to supply the elasticity rubber washer to carry out the space of telescopic variation.
The described content of this specification embodiment only is enumerating the way of realization of model utility design; The scope of the protection of the utility model should not be regarded as and only limit to the concrete form that embodiment states, the protection domain of the utility model also reach in those skilled in the art according to the utility model design the equivalent technologies means that can expect.

Claims (2)

1. multifunctional plastic nut, an end of its shell is shaped on opening, and the inwall of said opening is processed with the screw thread that matches with the refrigerant pipe copper sleeve; It is characterized in that: the other end end face of described shell has the through hole that communicates with shell inner cavity; Also be fixed for the elastic caoutchouc packing ring that the perception chamber pressure changes in the described shell inner cavity, described elastic caoutchouc packing ring is closely cooperating with the refrigerant pipe copper sleeve; Being provided with between the end face of described elastic caoutchouc packing ring and the described shell the other end end face to supply said elastic caoutchouc packing ring to carry out the space of telescopic variation; Other has a slidably spacing pressure-display bar in said through hole, and an end of described pressure-display bar is connected with described elastic caoutchouc packing ring, slides in said through hole with the motion of following the elastic caoutchouc packing ring.
2. multifunctional plastic nut as claimed in claim 1 is characterized in that: described elastic caoutchouc packing ring is provided with jack, and described pressure-display bar is plugged in the described jack.
CN 201220201002 2012-05-04 2012-05-04 Multifunctional plastic nut Active CN202628738U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220201002 CN202628738U (en) 2012-05-04 2012-05-04 Multifunctional plastic nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220201002 CN202628738U (en) 2012-05-04 2012-05-04 Multifunctional plastic nut

Publications (1)

Publication Number Publication Date
CN202628738U true CN202628738U (en) 2012-12-26

Family

ID=47381943

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220201002 Active CN202628738U (en) 2012-05-04 2012-05-04 Multifunctional plastic nut

Country Status (1)

Country Link
CN (1) CN202628738U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105241610A (en) * 2015-09-30 2016-01-13 青岛海尔空调器有限总公司 Leak detection method of air conditioner indoor unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105241610A (en) * 2015-09-30 2016-01-13 青岛海尔空调器有限总公司 Leak detection method of air conditioner indoor unit

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