CN212480847U - Oil filling device and pressure sensing equipment - Google Patents
Oil filling device and pressure sensing equipment Download PDFInfo
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- CN212480847U CN212480847U CN202020868330.3U CN202020868330U CN212480847U CN 212480847 U CN212480847 U CN 212480847U CN 202020868330 U CN202020868330 U CN 202020868330U CN 212480847 U CN212480847 U CN 212480847U
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Abstract
The utility model relates to a pressure sensing equipment's technical field provides a fill oily device of irritating and pressure sensing equipment, wherein fills oily device of irritating includes: fill oily device includes: a vacuum device; a pretreatment vessel in communication with the vacuum apparatus; the oil storage container is communicated with the pretreatment container and is positioned below the pretreatment container; the first valve body is communicated between the pretreatment container and the oil storage container; the second valve body is communicated with the oil storage container and is used for communicating the remote transmission assembly; the third valve body is communicated with the vacuum device and is used for communicating the remote transmission assembly; the pressure sensing equipment comprises the oil filling device; the utility model provides a fill oily device and pressure sensing equipment of irritating has the convenient advantage of operation of filling oil.
Description
Technical Field
The utility model relates to a pressure sensing equipment's technical field, more specifically say, relate to an oil filling device and pressure sensing equipment.
Background
Pressure sensing devices are important components of many industrial devices for controlling industrial processes and pressure variations. Because most of the field working conditions are severe and the electronic hardware part of the gauge head of the pressure sensing equipment cannot bear the pressure, a remote transmission assembly is needed to transmit the pressure measured on the field to a place far away from the field, and then the pressure sensing equipment is used for obtaining the pressure value; specifically, the pressure sensing equipment is connected through a capillary tube of the remote transmission assembly, and the tiny displacement (acting force) of a diaphragm on the remote transmission assembly is transmitted to the diaphragm of a gauge head of the pressure sensing equipment by using oil in the capillary tube, converted into an electric signal and output; the oil filling amount in the capillary directly influences the transmission of micro displacement (acting force) and finally influences the measurement precision, so the precision of the oil filling device is very important.
The existing oil filling device has the following problems: the operations in the oil filling pretreatment and oil filling processes are very inconvenient, and the oil storage container needs to be moved up and down to achieve the effect of filling oil by using gravity, so that the falling risk exists.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fill oily device of irritating and pressure sensing equipment to solve the inconvenient technical problem of filling oily operation that exists among the prior art.
In order to achieve the above object, the utility model discloses a technical scheme be a fill oily device of irritating, include:
a vacuum device;
a pre-treatment vessel in communication with the vacuum apparatus;
the oil storage container is communicated with the pretreatment container and is positioned below the pretreatment container;
the first valve body is communicated between the pretreatment container and the oil storage container;
the second valve body is communicated with the oil storage container and is used for communicating with the remote transmission assembly; and
and the third valve body is communicated with the vacuum device and is used for communicating the remote transmission assembly.
In one embodiment, the oil filling device includes at least two oil storage containers and at least two first valve bodies, the at least two oil storage containers are respectively communicated with the pretreatment container, and the first valve bodies are in one-to-one correspondence with the oil storage containers.
In one embodiment, the valve further comprises a fourth valve body for communicating with outside air, and the fourth valve body is communicated with the oil storage container and is positioned at one end of the oil storage container close to the first valve body.
In one embodiment, the pretreatment container further comprises a fifth valve body, and the fifth valve body is arranged between the pretreatment container and the first valve body.
In one embodiment, the valve further comprises a sixth valve body, and the sixth valve body is arranged between two adjacent first valve bodies.
In one embodiment, the vacuum device further comprises a seventh valve body for communicating external air, and the seventh valve body is arranged on the vacuum device.
Another object of the present invention is to provide a pressure sensing apparatus, including the aforesaid oil filling device, and the teletransmission subassembly, the teletransmission subassembly with the oil storage container one-to-one.
In one embodiment, the device further comprises an adjusting assembly used for adjusting the position of the diaphragm of the remote transmission assembly, and the adjusting assemblies are in one-to-one correspondence with the remote transmission assemblies.
In one embodiment, the adjusting assembly comprises a water tank and at least two peristaltic pumps, the peristaltic pumps correspond to the remote transmission assemblies one by one, an eighth valve body is arranged between the remote transmission assemblies and the water tank, a ninth valve body is arranged on the peristaltic pumps, and a tenth valve body is arranged between the remote transmission assemblies and the second valve body.
In one embodiment, an oil filling nozzle is arranged between the remote transmission assembly and the tenth valve body.
The utility model provides a fill oily device of irritating and pressure sensing equipment's beneficial effect lies in:
the oil storage container is positioned below the pretreatment container, and the pretreated oil smoothly enters the oil storage container under the action of the self gravity of the oil, so that the oil is pretreated, the position of the oil storage container does not need to be changed for many times like the prior art, the convenience of operation is improved, and the falling risk of the oil storage container is prevented;
in addition, can make to utilize same vacuum apparatus to do vacuum treatment to the oil storage container through the cooperation between third valve body and the first valve body, also can do vacuum treatment to the teletransmission subassembly, make the oil in the oil storage container can flow to the teletransmission subassembly through the cooperation between the valve body in, improved vacuum apparatus's utilization ratio.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an oil filling device and a pressure sensing device provided by an embodiment of the present invention;
fig. 2 is a schematic diagram of a pretreatment vessel provided by an embodiment of the present invention.
The figures are numbered:
1-vacuum device; 11-a first conduit; 2-a pretreatment vessel; 21-liquid level; 3-an oil storage container; 31-a second conduit; 4-a remote transmission assembly; 5-a liquid level sensor; 51-a stepper motor; 6-adjusting the assembly; 61-a water tank; 62-a peristaltic pump; 7-oil filling nozzle; 8-thermocouple vacuum gauge;
10-a first valve body; 20-a second valve body; 30-a third valve body; 40-a fourth valve body; 50-a fifth valve body; 60-a sixth valve body; 70-a seventh valve body; 80-an eighth valve body; 90-ninth valve body; 100-tenth valve body; 110-eleventh valve body.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected or indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention, and are not intended to indicate that a device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as indicating a number of technical features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The following describes the specific implementation of the present invention in more detail with reference to specific embodiments:
as shown in fig. 1 and fig. 2, the embodiment of the utility model provides a fill oily device for fill oil to the capillary of teletransmission subassembly, make the displacement of the diaphragm of teletransmission subassembly change can rely on oil to transmit to the diaphragm of pressure sensing equipment's gauge outfit, convert the signal of telecommunication and export into.
Fill oily equipment includes: a vacuum device 1, a pretreatment container 2, an oil storage container 3, a first valve body 10, a second valve body 20, and a third valve body 30; the vacuum device 1 is used for vacuum pumping, and a vacuum pump is selected in the embodiment; the pretreatment container 2 is communicated with the vacuum device 1, and the pretreatment container and the vacuum device are connected through a pipeline; the oil storage container 3 is communicated with the pretreatment container 2 through a pipeline, and the oil storage container 3 is positioned below the pretreatment container 2; the first valve body 10 is arranged between the pretreatment container 2 and the corresponding oil storage container 3, particularly on a pipeline communicated between the pretreatment container 2 and the corresponding oil storage container 3, and is used for controlling the communication between the pretreatment container 2 and the corresponding oil storage container 3; the second valve body 20 is arranged between the oil storage container 3 and the remote transmission assembly 4, the oil storage container 3 is communicated with the remote transmission assembly 4 through a pipeline, and the second valve body 20 is arranged on the pipeline and used for controlling the communication between the oil storage container 3 and the remote transmission assembly 4; the third valve body 30 is arranged between the vacuum device 1 and the remote transmission assembly 4, the vacuum device 1 is communicated with the remote transmission assembly 4 through a pipeline, and the third valve body 30 is arranged on the pipeline and used for controlling the communication between the vacuum device 1 and the remote transmission assembly 4.
The oil filling steps of the oil filling device provided by the embodiment are as follows:
step S1, preprocessing: injecting oil into the pretreatment container 2 for pretreatment, specifically stirring the oil in the pretreatment container 2, so that the oil becomes uniform and bubbles in the oil are promoted to be discharged, and the influence of the bubbles in the oil on the filling effect is avoided; finely, the pretreatment step utilizes a magnetic stirrer to stir the oil in the pretreatment vessel 2;
step S2, evacuating the oil reservoir 3: opening the first valve body 10, closing the second valve body 20 and the third valve body 30, starting the vacuum device 1, and simultaneously vacuumizing the pretreatment container 2 and the oil storage container 3; it is to be explained that opening the valve body in particular means that the valve body opens a passage between two connected components, whereas closing the valve body in particular means that the valve body closes a passage between two connected components;
step S3, oiling the oil reservoir 3: the oil in the pretreatment container 2 flows into the oil storage container 3 under the action of self gravity, and after the preset oil quantity enters the oil storage container 3, the vacuum device 1 and the first valve body 10 are closed;
step S4, the remote transmission assembly 4 is vacuumized: opening the third valve body 30, starting the vacuum device 1, and vacuumizing the remote transmission assembly 4;
step S5, the remote transmission assembly 4 is filled with oil: when the vacuum degree of the remote transmission assembly 4 reaches a preset value, the second valve body 20 is opened, so that the oil in the oil storage container 3 is filled into the remote transmission assembly 4 under the action of the pressure difference.
The utility model provides a fill oily device of irritating's beneficial effect lies in:
the oil storage container 3 is positioned below the pretreatment container 2, and the pretreated oil smoothly enters the oil storage container 3 under the action of the self gravity of the oil, so that the oil is pretreated, the position of the oil storage container 3 does not need to be changed for many times like the prior art, the convenience of operation is improved, and the falling risk of the oil storage container 3 is prevented;
in addition, the cooperation between the third valve body 30 and the first valve body 10 can enable the oil storage container 3 to be subjected to vacuum treatment by using the same vacuum device 1, and can also be subjected to vacuum treatment on the remote transmission assembly 4, so that the oil in the oil storage container 3 can flow into the remote transmission assembly 4 through the cooperation between the valve bodies, and the utilization rate of the vacuum device 1 is improved.
It should be further explained that the vacuum apparatus 1 and the oil reservoir 3 described above are each provided with a thermocouple vacuum gauge 8 for measuring the vacuum degrees of the vacuum apparatus 1 and the oil reservoir 3.
In one embodiment, the oil filling device comprises at least two oil storage containers 3 and at least two first valve bodies 10, wherein the at least two oil storage containers 3 are respectively communicated with the pretreatment container 2, and the first valve bodies 10 correspond to the oil storage containers 3 one by one.
In prior art, fill oily equipment of irritating and can not irritate oil operation to many teletransmission subassemblies 4 simultaneously, inefficiency, through above-mentioned design, be equipped with first valve body 10 between pretreatment container 2 and the oil storage container 3, can control in the oil storage container 3 of the oil flow through the pretreatment to the difference, be equipped with second valve body 20 between oil storage container 3 and the teletransmission subassembly 4 in addition, can control the flow in the oil flow of oil storage container 3 to teletransmission subassembly 4, consequently above-mentioned design can reach and irritate oil operation to many teletransmission subassemblies 4 simultaneously, it irritates oily efficient.
In one embodiment, as shown in fig. 2, the vacuum device 1 is inserted into the pretreatment tank 2 through the first pipe 11, and the oil storage tank 3 is inserted into the pretreatment tank 2 through the second pipe 31, and it should be noted that the insertion end of the first pipe 11 is located above the oil level 21, and the insertion end of the second pipe 31 is located at the bottom of the oil. Through the design, when the vacuum device 1 can vacuumize the pretreatment container 2, air in the oil storage container 3 also enters the oil through the second pipeline 31, then rises above the liquid level 21 of the pretreatment container 2 and is extracted by the vacuum device 1, namely, the vacuum device 1 can vacuumize the pretreatment container 2 and the oil storage container 3 simultaneously; in addition, when the operation of the vacuum apparatus 1 is stopped, the air pressure values of the pretreatment tank 2 and the oil reservoir 3 are identical, since the oil reservoir 3 is under the pretreatment tank 2, the oil is injected into the oil reservoir 3 from the pretreatment tank 2 by gravity, and the insertion end of the second pipe 31 is located at the bottom of the oil, the oil can be completely injected into the oil reservoir 3. It can be understood that, through the above design, one vacuum device 1 can both vacuumize the pretreatment container 1 and the oil storage container 3, so that the cost is saved, the utilization rate of the vacuum device 1 is improved, meanwhile, the vacuum device 1 can continuously extract bubbles of oil in the pretreatment container 1, and the effect of filling oil is improved.
In one embodiment, a fourth valve body 40 for communicating with the outside air is further included, and the fourth valve body 40 communicates with the oil reservoir 3 and is located at one end of the oil reservoir 3 near the first valve body 10. It is further noted that the oil reservoir 3 is arranged in the vertical direction, and the fourth valve body 40 and the first valve body 10 are both located at the upper end of the oil reservoir 3 in the vertical direction.
In the present embodiment, the fourth valve body 40 functions to communicate with the outside air, so that the oil in the oil storage container 3 can further fill the remote transmission assembly 4; after the step S5, specifically, the step S5 further includes a step S6 of opening the fourth valve body 40: after the oil in the oil storage container 3 is filled into the remote transmission assembly 4, the fourth valve body 40 is opened, so that air enters the oil storage container 3, and the oil is further pressed into the remote transmission assembly 4 by utilizing the atmospheric pressure.
It can be understood that the oil filling effect of the remote transmission assembly 4 can be better through the design of the fourth valve body 40, the accuracy of oil filling is improved, and the accuracy of displacement or pressure transmission of the diaphragm of the remote transmission assembly 4 can be further improved.
In one embodiment, a fifth valve body 50 is further included, the fifth valve body 50 being disposed between the pretreatment vessel 2 and the first valve body 10.
In the present embodiment, the fifth valve body 50 has two functions, the first function is a main valve for the plurality of oil storage containers 3, and the flow rate of the oil in the pretreatment container 2 can be controlled by controlling the fifth valve body 50; the second is that when cleaning the pretreatment container 2, the fifth valve body 50 can be closed, so as to prevent air from entering the pipeline communicated with the oil storage container 3 in the cleaning process, and further influence the filling effect. Specifically, in step S2, the fifth valve body 50 and the first valve body 10 are simultaneously opened, so that the vacuum apparatus 1 evacuates the oil reservoir 3.
In one embodiment, a sixth valve body 60 is further included, and the sixth valve body 60 is disposed between two adjacent first valve bodies 10. Through setting up this sixth valve body 60 can completely cut off two adjacent oil storage container 3 for oil storage container 3 completely cuts off each other when filling oil, avoids the interact. Specifically, in step S2, the sixth valve element 60 and the first valve element 10 are simultaneously opened, so that the vacuum apparatus 1 evacuates the oil reservoir 3.
In one embodiment, a seventh valve body 70 for communicating external air is further included, and the seventh valve body 70 is provided on the vacuum apparatus 1. In the present embodiment, the seventh valve body 70 is used to exhaust the gas of the vacuum apparatus 1 from the pretreatment container 2, the oil storage container 3 and the remote transmission assembly 4. Specifically, in step S2, the seventh valve body 70 is opened simultaneously with the first valve body 10. It is further explained that the seventh valve body 70 needs to be activated for exhausting gas when the vacuum device 1 is activated.
In one embodiment, a twelfth valve body 120 is further included between the vacuum apparatus 1 and the pretreatment container 2, and the twelfth valve body 120 is used for preventing the oil in the pretreatment container 2 from flowing back into the vacuum apparatus 1.
In one embodiment, the oil filling device further comprises a level sensor 5 for detecting the amount of oil in the oil reservoir 3, the level sensor 5 being provided on the oil reservoir 3. In this embodiment, oil storage container 3 is transparent container, can real-time supervision oil storage container 3's liquid level height through setting up this liquid level sensor 5 to obtain the oily oil mass of filling in the teletransmission subassembly 4, and then make the accuracy of filling in the teletransmission subassembly 4 higher. In the prior art, the capillary filling oil of the remote transmission assembly 4 is obtained by calculating the time of filling oil and analyzing the oil amount, the oil amount cannot be accurately controlled, and the accuracy is low; the present embodiment thus improves the accuracy of the filling of the remote assembly 4 by providing the level sensor 5.
Specifically, the liquid level sensor 5 is driven by a stepping motor 51. In a detailed manner, the stepping motor 51 and the liquid level sensor 5 are driven by a transmission belt, and the liquid level sensor 5 moves in a vertical direction under the transmission of the transmission belt, that is, in a length direction of the oil storage container 3, so as to monitor the oil amount of the oil storage container 3 in real time.
The embodiment also provides a pressure sensing device, which comprises the oil filling device and the remote transmission assembly 4, wherein the remote transmission assembly 4 corresponds to the oil storage container 3 one by one.
The pressure sensing apparatus of the above embodiment has the following advantages: the first valve body 10 is arranged between the pretreatment container 2 and the oil storage container 3, the flow of oil which is subjected to pretreatment can be controlled to flow into different oil storage containers 3, in addition, the second valve body 20 is arranged between the oil storage container 3 and the remote transmission assembly 4, and the flow of the oil which is in the oil storage container 3 to flow into the remote transmission assembly 4 can be controlled, so that the design can achieve the purpose of simultaneously carrying out oil filling operation on a plurality of remote transmission assemblies 4, and the oil filling efficiency is high.
In one embodiment, the pressure sensing apparatus further comprises an adjusting assembly 6 for adjusting the position of the diaphragm of the remote transmission assembly 4, and the adjusting assemblies 6 correspond to the remote transmission assemblies 4 one by one. In this embodiment, the adjusting assembly 6 is used to precisely adjust the diaphragm position of the remote transmission assembly 4, so as to avoid inaccurate oil filling amount in the remote transmission assembly 4 due to the deviation of the diaphragm position.
It should be further explained that step S7 is further included after step S5 or step S6, and the remote transmitting assembly 4 is adjusted: when oil is filled into the remote transmission assembly 4, the adjusting assembly 6 is started to adjust the position of the diaphragm of the remote transmission assembly 4, so that the oil filling amount is more accurate.
Specifically, the adjusting assembly 6 comprises a water tank 61 and at least two peristaltic pumps 62, the peristaltic pumps 62 correspond to the remote transmission assembly 4 one by one, an eighth valve body 80 is arranged between the remote transmission assembly 4 and the water tank 61, and a ninth valve body 90 is arranged on the peristaltic pumps 62.
The step S7 is specifically: fill water with water tank 61, open eighth valve body 80 and ninth valve body 90, treat that can discharge water in the ninth valve body 90 after, prove that peristaltic pump 62 has injected water, can carry out the diaphragm in the accurate control teletransmission subassembly 4, close eighth valve body 80 this moment, start peristaltic pump 62 and control its discharge quantitative water can, the change of the position of diaphragm is represented to this quantitative water, improve the precision of the position of control diaphragm through peristaltic pump 62, and then improved the precision of filling oil.
In one embodiment, a tenth valve body 100 is disposed between the remote transmission assembly 4 and the second valve body 20, and the tenth valve body 100 can control the communication and blocking between the vacuum apparatus 1 or the oil storage container 3 and the remote transmission assembly 4. Specifically, in step S5, the tenth valve body 100 is opened simultaneously with the second valve body 20.
Further, the water tank is provided with an eleventh valve body 110, the eleventh valve body 110 is used for connecting at least two eighth valve bodies 80, and the eleventh valve body 110 is used for controlling the flow rate of the water tank flowing to the eighth valve bodies 80.
In one embodiment, a filling nozzle 7 is disposed between the remote transmission assembly 4 and the tenth valve body 100. In this embodiment, the oil filling nozzle 7 is used for communicating between the oil storage container 3 and the tenth valve body 100, when the liquid level 21 tracking sensor displays another preset value, the sixth valve body 60 and the tenth valve body 100 are closed, the oil filling nozzle 7 is removed, the plug is installed to seal the remote transmission assembly 4, and at this time, the whole oil filling to the remote transmission assembly 4 is completed. Specifically, step S8 is included after step S7, sealing the remote-transfer assembly 4: when the liquid level 21 tracking sensor displays another preset value, the sixth valve body 60 and the tenth valve body 100 are closed, the oil filling nozzle 7 is removed, and the plug sealing remote transmission assembly 4 is installed.
It should be further explained that the vacuum device 1, the thermocouple vacuum gauge 8, the liquid level sensor 5 and the adjusting assembly 6 in the above embodiments can be controlled by software and hardware algorithms, and full-automatic oil filling can be achieved.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. An oil filling apparatus, comprising:
a vacuum device;
a pre-treatment vessel in communication with the vacuum apparatus;
the oil storage container is communicated with the pretreatment container and is positioned below the pretreatment container;
the first valve body is communicated between the pretreatment container and the oil storage container;
the second valve body is communicated with the oil storage container and is used for communicating with the remote transmission assembly; and
and the third valve body is communicated with the vacuum device and is used for communicating the remote transmission assembly.
2. The oil filling apparatus according to claim 1, wherein the oil filling apparatus includes at least two of the oil storage containers and at least two of the first valve bodies, the at least two of the oil storage containers are respectively communicated with the pretreatment container, and the first valve bodies are in one-to-one correspondence with the oil storage containers.
3. The oil filling apparatus according to claim 1, further comprising a fourth valve body for communicating with outside air, the fourth valve body communicating with the oil reservoir and being located at an end of the oil reservoir adjacent to the first valve body.
4. The oil filling apparatus of claim 1, further comprising a fifth valve body disposed between the pretreatment container and the first valve body.
5. The oil filling apparatus according to claim 2, further comprising a sixth valve body provided between adjacent ones of the first valve bodies.
6. The oil filling apparatus as claimed in claim 1, further comprising a seventh valve body for communicating with the outside air, the seventh valve body being provided on the vacuum apparatus.
7. A pressure sensing apparatus comprising an oil filling device according to any one of claims 1 to 6, and a remote transmitting member, the remote transmitting member corresponding to the oil storage containers one to one.
8. The pressure sensing apparatus of claim 7, further comprising an adjustment assembly for adjusting a position of a diaphragm of the remote transmission assembly, the adjustment assembly corresponding one-to-one to the remote transmission assembly.
9. The pressure sensing apparatus of claim 8, wherein the adjustment assembly comprises a water tank and at least two peristaltic pumps, the peristaltic pumps are in one-to-one correspondence with the remote transmission assembly, an eighth valve is disposed between the remote transmission assembly and the water tank, a ninth valve is disposed on the peristaltic pumps, and a tenth valve is disposed between the remote transmission assembly and the second valve.
10. The pressure sensing apparatus of claim 9, wherein an oil fill nozzle is disposed between the remote sensing assembly and the tenth valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020868330.3U CN212480847U (en) | 2020-05-21 | 2020-05-21 | Oil filling device and pressure sensing equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020868330.3U CN212480847U (en) | 2020-05-21 | 2020-05-21 | Oil filling device and pressure sensing equipment |
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| CN212480847U true CN212480847U (en) | 2021-02-05 |
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| CN202020868330.3U Active CN212480847U (en) | 2020-05-21 | 2020-05-21 | Oil filling device and pressure sensing equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701057A (en) * | 2020-05-21 | 2021-11-26 | 深圳市特安电子有限公司 | Oil filling device, pressure sensing equipment and oil filling method |
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2020
- 2020-05-21 CN CN202020868330.3U patent/CN212480847U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701057A (en) * | 2020-05-21 | 2021-11-26 | 深圳市特安电子有限公司 | Oil filling device, pressure sensing equipment and oil filling method |
| CN113701057B (en) * | 2020-05-21 | 2024-09-06 | 深圳市特安电子有限公司 | Oil filling and filling device, pressure sensing equipment and oil filling and filling method |
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