CN209961385U - Portable refrigerant pressure gauge - Google Patents
Portable refrigerant pressure gauge Download PDFInfo
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- CN209961385U CN209961385U CN201920773596.7U CN201920773596U CN209961385U CN 209961385 U CN209961385 U CN 209961385U CN 201920773596 U CN201920773596 U CN 201920773596U CN 209961385 U CN209961385 U CN 209961385U
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Abstract
The utility model relates to a manometer technical field especially relates to a portable refrigerant manometer, and the quantity of gear is two, two valve handles respectively with first valve handle and second valve handle swing joint, drive gear and a driven gear of two gears, first valve switch handle and drive gear link to each other, and second valve switch handle is direct to link to each other with the case. The middle part of the left side of the low-pressure detection pipe is fixedly communicated with a refrigerant connecting pipe, the middle part of the top of the refrigerant connecting pipe is fixedly communicated with a vacuum pump connecting pipe, and the middle part of the left side of the high-pressure detection pipe is fixedly communicated with a high-pressure output pipe. The utility model discloses a realize the evacuation and add the seamless operation of refrigerant, realize filling refrigerant zero air and sneak into, promote the maintenance refrigerant filling purity technology of going to the door, a table the inside has a low pressure pointer and high-pressure pointer moreover, has low pressure scale and high-pressure scale, can detect refrigeration plant's high-low pressure simultaneously, and is small, and the quality is light, makes things convenient for maintenance personal's going to the door to carry.
Description
Technical Field
The utility model relates to a manometer technical field especially relates to a portable refrigerant manometer.
Background
The refrigerant pressure gauge is suitable for measuring low temperature or special refrigerant medium, is also called as a snow gauge or a Freon gauge and is used for measuring the pressure of various refrigeration systems or equipment internal refrigeration systems, such as air-conditioning equipment, a refrigeration house refrigeration system, an industrial water chiller, cold coal filling equipment, a central air conditioner and the like, has the same structure as that of a common pressure gauge, but has stricter technological requirements and stricter air tightness requirements, so that special welding flux and a detection method are adopted in the links of welding, leakage detection and the like to ensure that the refrigeration working medium is not leaked.
In the maintenance of real life refrigeration plant, the refrigerant manometer of two gauge heads that generally uses, however the refrigerant manometer volume of the two gauge heads that use now is too big, and the quality is heavier, and is inconvenient to carry, is unfavorable for the use of maintenance master, has designed two portable refrigerant manometers that can detect high and low pressure simultaneously of a table for this.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a portable refrigerant manometer possesses the advantage of conveniently carrying, and the refrigerant manometer volume of having solved the two gauge heads that use now is too big, and the quality is heavier, and is inconvenient to carry, is unfavorable for maintenance personal's the problem of use.
(II) technical scheme
In order to realize the technical problem, the utility model provides a portable refrigerant pressure gauge, which comprises a first valve handle, a second valve handle, a gear, a low-pressure detecting tube, a high-pressure detecting tube, a refrigerant connecting tube, a high-pressure output tube, a vacuum pump connecting tube, a pressure gauge head screw tube, a pressure detecting ring, a pressure device, a medium pressure connecting tube, a transparent shell, a graduated needle and an outer cover shell, the number of the gears is two, the two gears are respectively movably connected with the first valve handle and the second valve handle, the back surfaces of the two gears are respectively and fixedly connected with a low-pressure detection pipe and a high-pressure detection pipe, the middle part of the left side of the low-pressure detection pipe is fixedly communicated with a refrigerant connecting pipe, the middle part of the top of the refrigerant connecting pipe is fixedly communicated with a vacuum pump connecting pipe, the left middle part of the high-pressure detection pipe is fixedly communicated with a high-pressure output pipe, and the middle parts of the right sides of the low-pressure detection pipe and the high-pressure detection pipe are fixedly communicated with a pressure gauge head screw pipe.
Pressure detection ring and pressure device fixed connection are in the inside of outer cover shell, the fixed intercommunication in left side of pressure device has the media pressure to take over, the one end that pressure device was kept away from to the media pressure takeover runs through the outer cover shell and extends to the outside of outer cover shell, the one end that pressure device was kept away from to the media pressure takeover is with the fixed intercommunication of manometer gauge outfit screw pipe, transparent shell fixed connection is at the top of outer cover shell, scale needle swing joint is at the inside middle part of transparent shell.
Further, the high-pressure output pipe and the high-pressure detection pipe are arranged in parallel, and the top of the high-pressure output pipe is fixedly communicated with the bottom of the vacuum pump connecting pipe.
Furthermore, the number of the scale needles is two, and the middle parts of the two scale needles are movably connected to the middle part inside the transparent shell through a movable shaft.
Furthermore, the number of the pressure detection rings and the number of the pressure devices are two, the pressure devices are fixedly connected inside the pressure detection rings, and the bottoms of the scale needles are fixedly connected with the pressure devices.
Furthermore, the number of the medium pressure connecting pipes is two, two the outer surface of the medium pressure connecting pipe is movably sleeved with a fixing nut, and the thread of the fixing nut is sleeved on the outer surface of a pressure gauge head screw pipe.
Furthermore, the outer surfaces of the two media pressure connecting pipes are movably sleeved with sealing rings, and the sealing rings are located inside the fixing nuts.
(III) advantageous effects
The utility model provides a portable refrigerant manometer possesses following beneficial effect:
1. the portable refrigerant pressure gauge is suitable for being used when maintenance personnel go out to maintain refrigeration equipment, when a low-pressure detection pipe is connected to the refrigeration equipment, a vacuum pump is connected to a vacuum pump connecting pipe, the refrigerant is connected to a refrigerant connecting pipe, when the refrigeration equipment is maintained to replace a compressor or supplement and leak refrigerant, the vacuum pump is started to pump vacuum, at the moment, the whole pipeline system of the refrigeration equipment, the low-pressure detection pipe and the refrigerant connecting pipe are in a vacuum state, the vacuum pumping lasts for a certain time, a valve on the refrigerant connecting pipe is opened, the vacuum pump is closed, the vacuumizing and refrigerant seamless operation is realized, the zero air mixing of the refrigerant is realized, the refrigerant filling purity process of door maintenance is improved, a low-pressure indicating needle and a high-pressure indicating needle are arranged in one gauge, low-pressure scales and high-pressure scales are arranged, the high-low pressure of the, the maintenance personnel can conveniently carry the device at home, and better maintenance service is provided for customers.
2. This portable refrigerant manometer through sealing washer and fixation nut's setting, fixation nut can make manometer gauge outfit screw pipe take over with the media pressure and be connected inseparabler, and the sealing washer is rich in elasticity and resilience, has played sealed effect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a right side view of the outer cover shell structure of the present invention.
In the figure: the pressure gauge comprises a first valve handle 1, a second valve handle 2, a gear 3, a low-pressure detection pipe 4, a high-pressure detection pipe 5, a refrigerant connection pipe 6, a high-pressure output pipe 7, a vacuum pump connection pipe 8, a pressure gauge head screw pipe 9, a sealing ring 10, a fixing nut 11, a pressure detection ring 12, a pressure device 13, a medium pressure connection pipe 14, a transparent shell 15, a scale needle 16 and an outer cover shell 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, a portable refrigerant pressure gauge comprises a first valve handle 1, a second valve handle 2, gears 3, a low pressure detecting tube 4, a high pressure detecting tube 5, a refrigerant connecting tube 6, a high pressure output tube 7, a vacuum pump connecting tube 8, a gauge head screw tube 9, a pressure detecting ring 12, a pressure device 13, a medium pressure connecting tube 14, a transparent shell 15, a graduated needle 16 and an outer cover shell 17, wherein the number of the gears 3 is two, the two gears 3 are respectively movably connected with the first valve handle 1 and the second valve handle 2, the opening and closing of the low pressure valve can be controlled by rotating the first handle 1 left and right, the opening and closing of the high pressure valve can be controlled by rotating the second valve handle 2 left and right, the back surfaces of the two gears 3 are respectively and fixedly connected with the low pressure detecting tube 4 and the high pressure refrigerant detecting tube 5, the middle part of the left side of the low pressure, the middle part at the top of the refrigerant connecting pipe 6 is fixedly communicated with a vacuum pump connecting pipe 8, the middle part at the left side of the high-pressure detection pipe 5 is fixedly communicated with a high-pressure output pipe 7, the high-pressure output pipe 7 is arranged in parallel with the high-pressure detection pipe 5, the top of the high-pressure output pipe 7 is fixedly communicated with the bottom of the vacuum pump connecting pipe 8, and the middle parts at the right sides of the low-pressure detection pipe 4 and the high-pressure detection pipe 5 are fixedly communicated with a pressure gauge.
The pressure detection ring 12 and the pressure device 13 are fixedly connected inside the outer cover shell 17, the pressure detection ring 12 detects through pressure expansion and contraction, the number of the pressure detection ring 12 and the number of the pressure device 13 are two, the pressure device 13 is fixedly connected inside the pressure detection ring 12, the bottom of the graduated needle 16 is fixedly connected with the pressure device 13, the left side of the pressure device 13 is fixedly communicated with the media pressure connection pipe 14, the number of the media pressure connection pipes 14 is two, the outer surfaces of the two media pressure connection pipes 14 are movably sleeved with the fixing nuts 11, the fixing nuts 11 are in threaded sleeve connection with the outer surface of the head screw pipe 9 of the pressure gauge, the outer surfaces of the two media pressure connection pipes 14 are movably sleeved with the sealing rings 10, the sealing rings 10 are positioned inside the fixing nuts 11, and the fixing nuts 11 can enable the head screw pipe 9 of the pressure gauge to be more tightly connected with the media pressure connection pipes 14 through the sealing rings 10 and the fixing nuts 11, the sealing ring 10 is rich in elasticity and resilience, and has a sealing effect, one end of the media pressure connecting pipe 14, which is far away from the pressure device 13, penetrates through the outer cover shell 17 and extends to the outer side of the outer cover shell 17, one end of the media pressure connecting pipe 14, which is far away from the pressure device 13, is fixedly communicated with the pressure gauge head screw tube 9, the transparent shell 15 is fixedly connected to the top of the outer cover shell 17, the scale needles 16 are movably connected to the middle part inside the transparent shell 15, the number of the scale needles 16 is two, the middle parts of the two scale needles 16 are movably connected to the middle part inside the transparent shell 15 through the movable shaft, the two scale needles 16 are respectively a low-pressure indicator needle and a high-pressure indicator needle, and the inside of the transparent shell 15 is provided with low-pressure scales and high-pressure scales, the portable refrigerant pressure gauge is suitable for being used when a maintainer, the vacuum pump is connected to a vacuum pump connecting pipe 8, the refrigerant is connected to a refrigerant connecting pipe 6, the vacuum pump is started to pump vacuum, the low-pressure detection pipe 4 and the refrigerant connecting pipe 6 are both in a vacuum state, the vacuum pumping is performed for a certain time, a valve on the refrigerant connecting pipe 6 is opened, the vacuum pump is closed, then the seamless operation of the vacuum pumping and the refrigerant adding is realized, zero air mixing of the refrigerant is realized, the upper door maintenance refrigerant filling purity process is improved, a low-pressure indicating needle and a high-pressure indicating needle are arranged in one table, low-pressure scales and high-pressure scales are arranged, the high pressure and the low pressure of the refrigeration equipment can be detected simultaneously, the connecting pipe openings are rich, the size is small, the weight is light, the upper door of.
When the refrigeration equipment is maintained, the low-pressure detection pipe 4 is connected to the refrigeration equipment, the vacuum pump is connected to the vacuum pump connecting pipe 8, the refrigerant is connected to the refrigerant connecting pipe 6, the vacuum pump is started to vacuumize, the low-pressure detection pipe 4 and the refrigerant connecting pipe 6 are both in a vacuum state, the vacuum pump is vacuumized for a certain time, the valve on the refrigerant connecting pipe 6 is opened, the vacuum pump is closed, and then the seamless operation of vacuumizing and refrigerant adding is achieved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a portable refrigerant manometer, includes first valve handle (1), second valve handle (2), gear (3), low pressure test tube (4), high pressure test tube (5), refrigerant takeover (6), high pressure output tube (7), vacuum pump takeover (8), manometer gauge outfit screw pipe (9), pressure detection ring (12), pressure device (13), media pressure takeover (14), transparent outer shell (15), scale needle (16) and enclosing cover (17), its characterized in that: the number of the gears (3) is two, the two gears (3) are respectively movably connected with the first valve handle (1) and the second valve handle (2), the back surfaces of the two gears (3) are respectively and fixedly connected with a low-pressure detection pipe (4) and a high-pressure detection pipe (5), the middle part of the left side of the low-pressure detection pipe (4) is fixedly communicated with a refrigerant connecting pipe (6), the middle part of the top of the refrigerant connecting pipe (6) is fixedly communicated with a vacuum pump connecting pipe (8), the middle part of the left side of the high-pressure detection pipe (5) is fixedly communicated with a high-pressure output pipe (7), and the middle parts of the right sides of the low-pressure detection pipe (4) and the high-pressure detection pipe (5) are respectively and fixedly communicated with;
pressure detection ring (12) and pressure device (13) fixed connection are in the inside of outer cover shell (17), the fixed intercommunication in left side of pressure device (13) has media pressure to take over (14), the one end that pressure device (13) were kept away from in media pressure take over (14) runs through outer cover shell (17) and extends to the outside of outer cover shell (17), the one end and the fixed intercommunication of manometer gauge outfit screw pipe (9) that pressure device (13) were kept away from in media pressure take over (14), transparent shell (15) fixed connection is at the top of outer cover shell (17), scale needle (16) swing joint is at the inside middle part of transparent shell (15).
2. The portable refrigerant pressure gauge according to claim 1, wherein: the high-pressure output pipe (7) and the high-pressure detection pipe (5) are arranged in parallel, and the top of the high-pressure output pipe (7) is fixedly communicated with the bottom of the vacuum pump connecting pipe (8).
3. The portable refrigerant pressure gauge according to claim 1, wherein: the quantity of the scale needles (16) is two, and the middle parts of the two scale needles (16) are movably connected to the middle part inside the transparent shell (15) through movable shafts.
4. The portable refrigerant pressure gauge according to claim 1, wherein: the pressure detection ring (12) and the pressure devices (13) are two in number, the pressure devices (13) are fixedly connected inside the pressure detection ring (12), and the bottom of the scale needle (16) is fixedly connected with the pressure devices (13).
5. The portable refrigerant pressure gauge according to claim 1, wherein: the number of the medium pressure connecting pipes (14) is two, two the outer surface of the medium pressure connecting pipes (14) is movably sleeved with a fixing nut (11), and the fixing nut (11) is sleeved on the outer surface of a pressure gauge head screw pipe (9) in a threaded manner.
6. The portable refrigerant pressure gauge according to claim 5, wherein: the outer surfaces of the two media pressure connecting pipes (14) are movably sleeved with sealing rings (10), and the sealing rings (10) are located inside the fixing nuts (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920773596.7U CN209961385U (en) | 2019-05-27 | 2019-05-27 | Portable refrigerant pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920773596.7U CN209961385U (en) | 2019-05-27 | 2019-05-27 | Portable refrigerant pressure gauge |
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| Publication Number | Publication Date |
|---|---|
| CN209961385U true CN209961385U (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920773596.7U Active CN209961385U (en) | 2019-05-27 | 2019-05-27 | Portable refrigerant pressure gauge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021212248A1 (en) * | 2020-04-22 | 2021-10-28 | Liu Zhongyu | Portable refrigerant pressure gauge |
| CN113654712A (en) * | 2021-07-12 | 2021-11-16 | 江铃汽车股份有限公司 | Pressure detection device and method |
-
2019
- 2019-05-27 CN CN201920773596.7U patent/CN209961385U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021212248A1 (en) * | 2020-04-22 | 2021-10-28 | Liu Zhongyu | Portable refrigerant pressure gauge |
| CN113654712A (en) * | 2021-07-12 | 2021-11-16 | 江铃汽车股份有限公司 | Pressure detection device and method |
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