CN210318101U - Stop valve for air conditioner with anti-disassembling and anti-loosening device - Google Patents
Stop valve for air conditioner with anti-disassembling and anti-loosening device Download PDFInfo
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- CN210318101U CN210318101U CN201920910641.9U CN201920910641U CN210318101U CN 210318101 U CN210318101 U CN 210318101U CN 201920910641 U CN201920910641 U CN 201920910641U CN 210318101 U CN210318101 U CN 210318101U
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Abstract
A stop valve for an air conditioner provided with an anti-misoperation and anti-loosening device comprises a valve body, wherein the valve body is provided with an upper head part positioned at the top, a transverse head part, a refrigerant service port, a base positioned at the bottom of the valve, a connecting pipe nut connected with the transverse head part and a connecting pipe connected with an indoor unit; the transverse head part is provided with an external thread part and a frustum-shaped pressing part, and the adapter nut comprises an internal thread part, a frustum-shaped part and a pipe hole part and also comprises an anti-mistaken-disassembly and anti-loosening nut; an external thread part is arranged on the outer circumferential surface of the adapter nut; the anti-misoperation and anti-loosening nut is screwed with the external thread part of the adapter nut. Due to the adoption of the pipeline connecting structure, the anti-misoperation and anti-loosening nut is screwed with the connecting pipe nut, so that the connecting pipe nut and the transverse head part are prevented from loosening; during the dismantlement, control screw-thread fit and form relative reverse motion, prevent that the mistake is torn open and prevent that the pine takes off the nut and rotate earlier, and the takeover nut is motionless, plays warning and warning effect, realizes preventing mistake and tears open.
Description
Technical Field
The utility model relates to a stop valve that air conditioner was used.
Background
In the prior art, as shown in fig. 1 and 2, a stop valve for an air conditioner comprises a valve body 1, wherein the valve body is provided with an upper head 11 positioned at the top, a transverse head 12, a refrigerant port 13, a base 14 positioned at the bottom of the valve, a connecting pipe nut connected with the transverse head and a connecting pipe connected with an indoor unit, and the bottom of the valve is provided with a pipe connecting hole; the connecting pipe nut comprises an inner thread portion, a frustum-shaped portion and a pipe hole portion, a flaring is arranged at the connecting end of the connecting pipe, the flaring is matched with the frustum-shaped portion and the frustum-shaped portion, and the connecting pipe penetrates through the pipe hole portion to extend out. There are problems in that: when the outdoor unit of the air conditioner normally operates, the outdoor unit vibrates and operates for a long time, and a connecting pipe nut has potential loosening (moving) risks to cause refrigerant leakage; and (II) during routine maintenance, misoperation can be caused, the connecting pipe nut is unscrewed, and the potential safety hazard of refrigerant leakage exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the stop valve for the air conditioner is provided with the device for preventing mistaken disassembly and loosening, and has the characteristics of preventing the loosening of the connecting pipe nut and preventing mistaken disassembly.
The utility model discloses a realize like this: a stop valve for an air conditioner provided with an anti-misoperation and anti-loosening device comprises a valve body, wherein the valve body is provided with an upper head part positioned at the top, a transverse head part, a refrigerant service port, a base positioned at the bottom of the valve, a connecting pipe nut connected with the transverse head part and a connecting pipe connected with an indoor unit; the bottom of the valve is provided with a pipe connecting hole; the transverse head part is provided with an external thread part and a frustum-shaped pressing part, the adapter nut comprises an internal thread part, a frustum-shaped part and a pipe hole part, the connecting end of the connecting pipe is provided with a flaring, the flaring is matched with the frustum-shaped pressing part and the frustum-shaped part, and the connecting pipe penetrates through the pipe hole part to extend out; it is characterized in that: the external thread part on the transverse head part is a right-handed screw; the inner thread part of the adapter nut is a right-hand thread;
the anti-misoperation and anti-loosening nut is also included;
an external thread part is arranged on the outer circumferential surface of the adapter nut;
the anti-misoperation and anti-loosening nut is screwed with the external thread part of the adapter nut.
The stop valve for the air conditioner provided with the anti-misoperation and anti-loosening device is characterized in that: the inner thread of the anti-mistaken-disassembly and anti-loosening nut is a left-hand thread;
the external thread part of the adapter nut is arranged on the outer circumferential part of the internal thread part of the adapter nut, and the external thread part of the adapter nut is a left-handed thread; the pitch of the left-hand thread is greater than the right-hand thread.
The stop valve for the air conditioner provided with the anti-misoperation and anti-loosening device is characterized in that: the thread pitch of the left-handed thread is more than 1.1 times of that of the right-handed thread.
The stop valve for the air conditioner provided with the anti-misoperation and anti-loosening device is characterized in that: the internal thread of the anti-mistaken-disassembly and anti-loosening nut is a right-hand thread, the external thread part on the adapter nut is a right-hand thread, and the external thread part of the adapter nut is arranged on the outer circumferential part of the pipe hole part of the adapter nut and extends to the outer circumferential surface of the internal thread part of the adapter nut;
the thread pitch of the internal thread of the anti-false-disassembly and anti-loosening nut and the external thread part on the adapter nut is larger than the thread pitch of the external thread part on the horizontal head part and the internal thread part of the adapter nut.
The stop valve for the air conditioner provided with the anti-misoperation and anti-loosening device is characterized in that: the thread pitch of the internal thread of the anti-mistaken-disassembly and anti-loosening nut and the external thread part of the adapter nut is more than 1.1 times that of the external thread part of the transverse head part and the internal thread part of the adapter nut.
The utility model relates to a stop valve for air conditioner with anti-false-disassembly and anti-loose device, which adopts the pipeline connecting structure, and the anti-false-disassembly and anti-loose nut is screwed with the connecting pipe nut, thus realizing the prevention of the loosening of the connecting pipe nut and the transverse head; during the dismantlement, control screw-thread fit and form relative reverse motion, prevent that the mistake is torn open and prevent that the pine takes off the nut and rotate earlier, and the takeover nut is motionless, plays warning and warning effect, realizes preventing mistake and tears open.
Drawings
FIG. 1 is a front view of a prior art shut off valve.
Fig. 2 is a top view of a prior art shut-off valve.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 is a sectional view of a second embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Example 1
Referring to fig. 1 and 2, a stop valve for an air conditioner provided with an anti-disassembly and anti-release device, as shown in fig. 3, comprises a valve body 1, wherein the valve body 1 is provided with an upper head 11 at the top, a transverse head 12, a refrigerant service port 13, a base 14 at the bottom of the valve, a connecting pipe nut 2 connected with the transverse head and a connecting pipe 3 connected with an indoor unit 4; the valve bottom 14 is provided with a pipe connecting hole which is connected with the outdoor unit 5 through a guide pipe; the horizontal head portion 12 is provided with an external thread portion 121 and a frustum-shaped pressing portion 122, the adapter nut 2 comprises an internal thread portion 21, a frustum-shaped portion 22 and a pipe hole portion 23, a flared end 31 is arranged at the connecting end of the connecting pipe 3, the flared end 31 is matched with the frustum-shaped pressing portion 122 and the frustum-shaped portion 22, and the connecting pipe 3 penetrates through the pipe hole portion 23 to extend out.
The external thread part 121 on the transverse head part 12 is a right-hand thread; the internal thread part 21 of the adapter nut 2 is a right-hand thread;
the anti-misoperation and anti-loosening nut 6 is also included, and the internal thread of the anti-misoperation and anti-loosening nut 6 is a left-handed thread;
the outer circumferential surface of the adapter nut 2 is provided with an external thread part 24, the diameter of the external thread part 24 is smaller than that of other parts of the adapter nut 2, or the diameter of the external thread part 24 is smaller than that of the cylindrical part; the external thread portion 24 is a left-hand thread;
the anti-false-disassembly and anti-loose nut 6 is screwed with the external thread part 24 of the adapter nut 2 to form the anti-false-disassembly and anti-loose device.
The male thread portion 24 of the nipple nut 2 is provided on the outer circumferential portion of the nipple nut 2 at the female thread portion 21.
The thread pitch of the left-hand thread is greater than that of the right-hand thread;
the thread pitch of the left-handed thread is more than 1.1 times of that of the right-handed thread.
With the structure, during assembly, firstly, the anti-misoperation and anti-release nut 6 is screwed with the external thread part 24 of the adapter nut 2, and the anti-misoperation and anti-release nut 6 and the adapter nut 2 are connected into a whole; secondly, the connecting pipe 3 passes through the connecting pipe nut 2; thirdly, the internal thread part 21 of the connecting pipe nut 2 is screwed with the external thread part 121 of the transverse head part 12, in the screwing process, the anti-false-disassembly and anti-loose nut 6 is clockwise rotated by a spanner, the connecting pipe nut 2 is clockwise rotated along with the anti-false-disassembly and anti-loose nut 6 until the internal thread part 21 of the connecting pipe nut 2 is screwed with the external thread part 121 of the transverse head part 12; and (5) finishing assembly. The double nuts with left and right threads are matched with the external thread part 121 of the transverse head part 12, so that the functions of preventing mistaken disassembly and loosening are realized.
When the pipe joint is disassembled, the anti-misoperation and anti-loosening nut 6 is rotated anticlockwise by a wrench, firstly, the anti-misoperation and anti-loosening nut 6 rotates anticlockwise to be loose, the loosening torque of the anti-misoperation and anti-loosening nut is smaller than that of the pipe joint nut 2, so that the pipe joint nut 2 is static and motionless, namely, the anti-misoperation and anti-loosening nut 6 rotates relative to the pipe joint nut 2; at the moment, the adapter nut 2 is still tightly matched with the external thread part 11 of the pipe joint 1, and only the anti-misoperation and anti-loosening nut 6 rotates to play a role in warning and reminding; if the false removal is carried out, stopping; if the maintenance and the disassembly are normal, the anti-misoperation and anti-loosening nut 6 continues to rotate until the anti-misoperation and anti-loosening nut 6 is separated from the left-handed external thread part 24 of the adapter nut 2; then, the pipe connecting nut 2 is rotated anticlockwise, and normal disassembly is achieved.
Example 2
As shown in fig. 4, the female screw of the erroneous detachment and release preventing nut 6 is a right-hand screw, the male screw 24 of the nipple nut 2 is a right-hand screw, and the male screw 24 of the nipple nut 2 is provided on an outer circumferential portion of the orifice portion 23 of the nipple nut 2 and extends to an outer circumferential surface of the female screw 21 of the nipple nut 2;
the thread pitch of the internal thread of the anti-false detachment and anti-loosening nut 6 and the external thread part 24 on the adapter nut 2 is larger than the thread pitch of the external thread part 121 on the transverse head part 12 and the internal thread part of the adapter nut 2;
the pitch of the internal thread of the anti-disassembly and anti-loosening nut 6 and the external thread part 24 of the adapter nut 2 is 1.1 times or more the pitch of the external thread part 121 of the horizontal head part 12 and the internal thread part 21 of the adapter nut 2.
During assembly, the anti-misoperation and anti-loosening nut 6 is firstly screwed with the external thread part 24 of the adapter nut 2, and the anti-misoperation and anti-loosening nut 6 and the adapter nut 2 are connected into a whole; secondly, the connecting pipe 3 passes through the connecting pipe nut 2; thirdly, the internal thread part 21 of the connecting pipe nut 2 is screwed with the external thread part 121 of the transverse head part 12, in the screwing process, the anti-false-disassembly and anti-loose nut 6 is clockwise rotated by a spanner, the connecting pipe nut 2 is clockwise rotated along with the anti-false-disassembly and anti-loose nut 4 until the internal thread part 21 of the connecting pipe nut 2 is fully screwed with the external thread part 121 of the transverse head part 12; and (5) finishing assembly.
When the pipe joint is disassembled, the anti-misoperation and anti-loosening nut 6 is rotated anticlockwise by a wrench, firstly, the anti-misoperation and anti-loosening nut 6 rotates anticlockwise, the pipe joint nut 2 is static, namely, the anti-misoperation and anti-loosening nut 4 rotates relative to the pipe joint nut 2; at this time, the adapter nut 2 is still tightly matched with the external thread part 121 of the transverse head part 12, and only the anti-mistaken-disassembly and anti-loosening nut 6 rotates to play a role in warning and reminding; if the false removal is carried out, stopping; if the maintenance and the disassembly are normal, the anti-misoperation and anti-loosening nut 6 continues to rotate until the anti-misoperation and anti-loosening nut 4 is separated from the right-handed external thread part 24 of the adapter nut 2; then, the pipe connecting nut 2 is rotated anticlockwise, and normal disassembly is achieved.
What has been described above is only a preferred embodiment of the present invention. It should be noted that, for a person skilled in the art, several modifications and variations can be made without departing from the principle of the invention, which is also considered as the protection scope of the invention.
Claims (5)
1. A stop valve for an air conditioner provided with an anti-misoperation and anti-loosening device comprises a valve body, wherein the valve body is provided with an upper head part positioned at the top, a transverse head part, a refrigerant service port, a base positioned at the bottom of the valve, a connecting pipe nut connected with the transverse head part and a connecting pipe connected with an indoor unit; the bottom of the valve is provided with a pipe connecting hole; the transverse head part is provided with an external thread part and a frustum-shaped pressing part, the adapter nut comprises an internal thread part, a frustum-shaped part and a pipe hole part, the connecting end of the connecting pipe is provided with a flaring, the flaring is matched with the frustum-shaped pressing part and the frustum-shaped part, and the connecting pipe penetrates through the pipe hole part to extend out; the method is characterized in that: the external thread part on the transverse head part is a right-handed screw; the inner thread part of the adapter nut is a right-hand thread;
the anti-misoperation and anti-loosening nut is also included;
an external thread part is arranged on the outer circumferential surface of the adapter nut;
the anti-misoperation and anti-loosening nut is screwed with the external thread part of the adapter nut.
2. A shut valve for an air conditioner provided with an erroneous detachment preventing and release preventing means according to claim 1, wherein: the inner thread of the anti-mistaken-disassembly and anti-loosening nut is a left-hand thread;
the external thread part of the adapter nut is arranged on the outer circumferential part of the internal thread part of the adapter nut, and the external thread part of the adapter nut is a left-handed thread; the pitch of the left-hand thread is greater than the right-hand thread.
3. A shut valve for an air conditioner provided with an erroneous detachment preventing and release preventing means according to claim 2, wherein: the thread pitch of the left-handed thread is more than 1.1 times of that of the right-handed thread.
4. A shut valve for an air conditioner provided with an erroneous detachment preventing and release preventing means according to claim 1, wherein: the internal thread of the anti-mistaken-disassembly and anti-loosening nut is a right-handed thread, the external thread part on the adapter nut is a right-handed thread, and the external thread part of the adapter nut is arranged on the outer circumferential part of the pipe hole part of the adapter nut and extends to the outer circumferential surface of the internal thread part of the adapter nut;
the thread pitch of the internal thread of the anti-false-disassembly and anti-loosening nut and the external thread part on the adapter nut is larger than the thread pitch of the external thread part on the horizontal head part and the internal thread part of the adapter nut.
5. A shut valve for an air conditioner provided with an erroneous detachment preventing and release preventing means according to claim 4, wherein: the thread pitch of the internal thread of the anti-mistaken-disassembly and anti-loosening nut and the external thread part of the adapter nut is more than 1.1 times that of the external thread part of the transverse head part and the internal thread part of the adapter nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920910641.9U CN210318101U (en) | 2019-06-15 | 2019-06-15 | Stop valve for air conditioner with anti-disassembling and anti-loosening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920910641.9U CN210318101U (en) | 2019-06-15 | 2019-06-15 | Stop valve for air conditioner with anti-disassembling and anti-loosening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210318101U true CN210318101U (en) | 2020-04-14 |
Family
ID=70144430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920910641.9U Active CN210318101U (en) | 2019-06-15 | 2019-06-15 | Stop valve for air conditioner with anti-disassembling and anti-loosening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210318101U (en) |
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2019
- 2019-06-15 CN CN201920910641.9U patent/CN210318101U/en active Active
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