CN201659396U - Air intake connecting pipe pressure head preventing copper cutting from entering cylinder and shell of compressor - Google Patents
Air intake connecting pipe pressure head preventing copper cutting from entering cylinder and shell of compressor Download PDFInfo
- Publication number
- CN201659396U CN201659396U CN2010201010756U CN201020101075U CN201659396U CN 201659396 U CN201659396 U CN 201659396U CN 2010201010756 U CN2010201010756 U CN 2010201010756U CN 201020101075 U CN201020101075 U CN 201020101075U CN 201659396 U CN201659396 U CN 201659396U
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- pressure head
- head
- sealing ring
- inlet pipe
- afterbody
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Abstract
The utility model relates to an air intake connecting pipe pressure head preventing copper cuttings from entering the cylinder and the shell of a compressor, which comprises a head part, a tail part, a screw and a seal ring. The head part and the tail part are connected through the screw, the tail part of an N shape with the opening facing leftwards, and the seal ring is arranged in a clearance formed by the head part and the tail part. Compared with the prior art, the utility model has the advantages of blocking copper cuttings from entering the channel of the cylinder or the shell, and removing copper cuttings produced in pressing when the air intake connecting pipe is pressed in place and the pressure head is pulled out.
Description
Technical field
The utility model relates to a kind of compressor, especially relates to a kind of copper that prevents and cuts the inlet pipe connection pressure head that enters compresser cylinder and housing.
Background technology
It is a procedure important in the compressor assembling process that inlet pipe connection is pressed into, and the technology that is pressed into is relevant with the connected mode of inlet pipe connection and cylinder.
Early stage design, inlet pipe connection is connected by the bushing pipe swelling with cylinder, reaches the requirement of sealing.But for the low consideration that subtracts of cost, fairly simple now and practical again design is inlet pipe connection and cylinder air entry interference fit.
As shown in Figure 1, existing inlet pipe connection is pressed into technology, and pressure head 3 is step-like integral type design, and with inlet pipe connection 4 and cylinder 1 prepackage, the inlet pipe connection 4 outer seat rings 2 that are provided with apply shock loading to pressure head 3 then and realize that inlet pipe connection is pressed into.In actual mechanical process, because inlet pipe connection 4 wall thickness are little, under the impact of pressure head 3, the copper scale on its end face A comes off easily, these copper scales can inside and outside wall attached to tube connector 4 on.Copper scale attached to the tube connector inwall can enter cylinder, causes the abnormal wear of compressor stall or piston external diameter and cylinder bore diameter; And can enter enclosure interior attached to the copper scale of tube connector outer wall, and being mixed in the refrigerator oil, these copper scales can enter the pump housing by pump oil sheet and oil groove, cause compressor stall and pump housing portion product abnormal wear.In addition, no matter these copper scales enter cylinder or enter housing, finally all might cause motor rotation blockage along with refrigerant is discharged between the rotor air gap.
The technology that is pressed into of another kind of inlet pipe connection is to adopt static pressure equipment.But because its machine that relates to is when inlet pipe connection is pressed into operation, three spot welding are not finished as yet, this moment, cylinder can rotate, and lower cover welds with housing, can't fix cylinder, when the center line of the air entry misalignment static pressure equipment depression bar of cylinder, make inlet pipe connection monolateral stressed easily, cause to be pressed into badly, even have the situation that tube connector comes off in the operation in the back and take place.
Therefore, need rethink the technology that is pressed into of inlet pipe connection, or the pressure head of research new model solves above problem.
Summary of the invention
But the purpose of this utility model is exactly to provide a kind of shutoff copper scale to enter the passage of cylinder or housing for the defective that overcomes above-mentioned prior art existence, be pressed into place at inlet pipe connection, when pressure head is extracted, remove the copper that prevents of the copper scale that produces in the process of press in and cut the inlet pipe connection pressure head that enters compresser cylinder and housing.
The purpose of this utility model can be achieved through the following technical solutions: a kind of copper that prevents is cut the inlet pipe connection pressure head that enters compresser cylinder and housing, it is characterized in that, this pressure head comprises head, afterbody, screw and sealing ring, described head is connected by screw with afterbody, described afterbody is "] " font, described sealing ring is arranged on the crevice place of head and afterbody.
Described head is fixed on "] by screw " in the middle of the groove of font afterbody, the protuberance of head and afterbody constitutes crack.
The protuberance inboard of described afterbody is provided with sealing ring a, and head and sealing ring a opposite position are provided with sealing ring b, are provided with the gap of spacing less than the inlet pipe connection wall thickness between sealing ring a and the sealing ring b.
The protuberance of described afterbody is provided with temporary groove, and this temporary groove is positioned at sealing ring a inboard.
Compared with prior art, the utility model inlet pipe connection pressure head is by head, afterbody, screw and sealing ring four parts are formed, wherein the head of pressure head is connected by screw with afterbody, be used to install sealing ring at the head of pressure head and the assigned address fluting of afterbody, guarantee that gap between two sealing rings is less than the wall thickness of inlet pipe connection, after the housing hot jacket finishes, can use newly-designed pressure head that inlet pipe connection is pre-installed, inlet pipe connection is stuck between two sealing rings, they have certain magnitude of interference each other, when using shock loading that tube connector is pressed into, the end face A of tube connector still has copper scale and produces, the design has opened a temporary groove at the inwall of the afterbody of pressure head, and pressure head is in rushing in vibration processes during its purpose, and a part of copper scale that tube connector comes off can be temporarily stored in the temporary groove.In addition, because the interference of sealing ring and tube connector inside and outside wall, in the pressure head withdrawal process, the copper scale that sealing ring can will remain on the tube connector is disposed, and enters cylinder or housing to prevent copper scale.Therefore, but the utility model structure shutoff copper scale enters the passage of cylinder or housing, is pressed into place at inlet pipe connection, when pressure head is extracted, removes the copper scale that produces in the process of press in.
Description of drawings
Fig. 1 is pressed into the profile of technology for the inlet pipe connection that uses existing pressure head;
Fig. 2 is a pressure head structure schematic diagram of the present utility model;
Fig. 3 is pressed into the profile of technology for the inlet pipe connection that uses the utility model pressure head.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment 1
As shown in Figure 2, a kind of copper that prevents is cut the inlet pipe connection pressure head that enters compresser cylinder and housing, this pressure head comprises head 31, afterbody 32, screw 5 and sealing ring, described head 31 is connected by screw 5 with afterbody 32, described afterbody 32 is "] " font, head 21 is fixed on "] by screw 5 " in the middle of the groove of font afterbody 32, head 31 constitutes crack with the protuberance of afterbody 32, and described sealing ring is arranged on the crevice place of head 31 and afterbody 32.Described sealing ring is provided with in pairs, and the protuberance inboard of afterbody 32 is provided with sealing ring a6, and head 31 is provided with sealing ring b7 with sealing ring a6 opposite position, is provided with the gap of spacing less than inlet pipe connection 4 wall thickness between sealing ring a6 and the sealing ring b7.The protuberance of described afterbody 32 is provided with temporary groove B, and this temporary groove B is positioned at sealing ring a inboard.
As shown in Figure 3, use above-mentioned novel inlet pipe connection pressure head, after the housing hot jacket finishes, pressure head is pre-installed inlet pipe connection 4.As can be seen from the figure, inlet pipe connection 4 is contained on the air entry of cylinder 1 in advance, the inlet pipe connection 4 outer seat rings 2 that are provided with, inlet pipe connection 4 is stuck in two sealing rings of pressure head: between sealing ring a6 and the sealing ring b7, they have certain magnitude of interference each other, when using shock loading that inlet pipe connection 4 is pressed into, the end face A of tube connector still has copper scale and produces, the design has opened a temporary groove B at the inwall of the afterbody 32 of pressure head, its objective is that pressure head is in the impact shock process, the copper scale that inlet pipe connection 4 comes off can be temporarily stored among the temporary groove B, in addition, because the interference of sealing ring a6 and sealing ring b7 and inlet pipe connection 4 inside and outside walls, in the pressure head withdrawal process, the copper scale that sealing ring a6 and sealing ring b7 can will remain on the inlet pipe connection 4 is disposed, and enters cylinder 1 or housing to prevent copper scale.
Because pressure head afterbody groove B is limited to the memory space of copper scale, but after the time period of fixed interval, turn on screw 5, the head 31 of pressure head separated with afterbody 32, treat that copper scale is cleared up after, head 31 and afterbody 32 are ressembled, novel pressure head can come into operation again.
Claims (4)
1. one kind prevents that copper from cutting the inlet pipe connection pressure head that enters compresser cylinder and housing, it is characterized in that, this pressure head comprises head, afterbody, screw and sealing ring, described head is connected by screw with afterbody, described afterbody is "] " font, described sealing ring is arranged on the crevice place of head and afterbody.
2. a kind of copper that prevents according to claim 1 is cut the inlet pipe connection pressure head that enters compresser cylinder and housing, it is characterized in that described head is fixed on "] by screw " in the middle of the groove of font afterbody, the protuberance of head and afterbody constitutes crack.
3. a kind of copper that prevents according to claim 1 is cut the inlet pipe connection pressure head that enters compresser cylinder and housing, it is characterized in that, the protuberance inboard of described afterbody is provided with sealing ring a, head and sealing ring a opposite position are provided with sealing ring b, are provided with the gap of spacing less than the inlet pipe connection wall thickness between sealing ring a and the sealing ring b.
4. a kind of copper that prevents according to claim 1 is cut the inlet pipe connection pressure head that enters compresser cylinder and housing, it is characterized in that the protuberance of described afterbody is provided with temporary groove, and this temporary groove is positioned at sealing ring a inboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201010756U CN201659396U (en) | 2010-01-25 | 2010-01-25 | Air intake connecting pipe pressure head preventing copper cutting from entering cylinder and shell of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201010756U CN201659396U (en) | 2010-01-25 | 2010-01-25 | Air intake connecting pipe pressure head preventing copper cutting from entering cylinder and shell of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201659396U true CN201659396U (en) | 2010-12-01 |
Family
ID=43229807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201010756U Expired - Lifetime CN201659396U (en) | 2010-01-25 | 2010-01-25 | Air intake connecting pipe pressure head preventing copper cutting from entering cylinder and shell of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201659396U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106853573A (en) * | 2015-12-09 | 2017-06-16 | 上海日立电器有限公司 | A kind of inlet pipe connection press-fitting step operational method |
-
2010
- 2010-01-25 CN CN2010201010756U patent/CN201659396U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106853573A (en) * | 2015-12-09 | 2017-06-16 | 上海日立电器有限公司 | A kind of inlet pipe connection press-fitting step operational method |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101201 |