CN217179833U - Batch differential pressure sensor pressurization testing device - Google Patents
Batch differential pressure sensor pressurization testing device Download PDFInfo
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- CN217179833U CN217179833U CN202220985453.4U CN202220985453U CN217179833U CN 217179833 U CN217179833 U CN 217179833U CN 202220985453 U CN202220985453 U CN 202220985453U CN 217179833 U CN217179833 U CN 217179833U
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Abstract
The utility model discloses a batch differential pressure sensor pressurization testing arrangement relates to sensor test field, its characterized in that: the pressure-difference type ventilation pipe comprises an upper connecting pipeline, a pressurizing sleeve, a lower connecting pipeline and a three-way valve, wherein a main ventilation pipe is respectively connected with the upper connecting pipeline and the lower connecting pipeline through the three-way valve, the upper connecting pipeline and the lower connecting pipeline are respectively communicated with the upper end and the lower end of the pressurizing sleeve, and a differential pressure sensor is hermetically arranged in the pressurizing sleeve. Through setting up connecting line, pressurization suit, connecting line and three-way valve down, realized that once pressure strikes can carry out the purpose of pressure test simultaneously to differential pressure sensor's upper and lower both ends, need not repetitious, improved work efficiency, labour saving and time saving.
Description
Technical Field
The utility model relates to a sensor test field, more specifically the theory that says so especially relates to a batch differential pressure sensor pressurization testing arrangement.
Background
Differential pressure sensors, which are sensors that measure the difference between two pressures, are commonly used to measure the pressure difference across a device or component. The single-end pressurization of the single pressure sensor can meet the production requirement, and the single-end pressurization of the differential pressure sensor cannot completely meet the production requirement due to the fact that the differential pressure sensor is provided with the positive-pressure end isolating membrane and the negative-pressure end isolating membrane, so that a device capable of enabling the pressures at two ends of the isolating membranes to be in a balanced state is urgently needed, and firstly, the leakage detection is performed in a process after oil filling and sealing are welded; secondly, collecting electric signals for carrying out pressurization test on the product; and thirdly, testing the static pressure. The traditional pressurization leak detection process is to carry out pressure impact on a positive pressure cavity and a negative pressure cavity independently, and the process has the following problems:
1. if the positive pressure impact of a product with a large measuring range can be adjusted according to the measuring range, but the negative pressure impact considers the bearing capacity of the chip adhesive, the impact pressure cannot be adjusted to be large, and the screening rate of leakage of the sealing welding of the negative pressure end is reduced;
2. the chip adhesive fails due to overlarge instantaneous impact pressure of the negative pressure end;
3. one batch of product needs to impact the other side after impacting one side, which wastes labor and time.
Disclosure of Invention
The utility model discloses a pressure sensor's government both ends can exert pressure simultaneously, have solved the problem that the negative pressure end pressurization is glued and is not endured, have saved the test time of product simultaneously, have reached and need not to reverse the position, and the purpose that can once test and accomplish has saved the manual work.
The utility model discloses a technical scheme who specifically adopts is:
the utility model discloses a batch differential pressure sensor pressurization testing arrangement, its characterized in that: the pressure-difference type ventilation pipe comprises an upper connecting pipeline, a pressurizing sleeve, a lower connecting pipeline and a three-way valve, wherein a main ventilation pipe is respectively connected with the upper connecting pipeline and the lower connecting pipeline through the three-way valve, the upper connecting pipeline and the lower connecting pipeline are respectively communicated with the upper end and the lower end of the pressurizing sleeve, and a differential pressure sensor is hermetically arranged in the pressurizing sleeve.
The air inlet pipeline is connected with the upper connecting pipeline and the lower connecting pipeline through the three-way valve, so that air can be simultaneously fed from the upper end and the lower end of the pressurizing sleeve, and the differential pressure sensor in the pressurizing sleeve is simultaneously subjected to pressurizing test, so that the defects in the prior art are overcome, and the testing efficiency of the differential pressure sensor is improved.
Furthermore, the pressurizing sleeve comprises an upper connector, a lower connector and a pressing cap, wherein an upper air inlet channel is formed in the upper connector and is communicated with the upper end connecting pipeline, a lower air inlet channel is formed in the lower connector and is communicated with the lower connecting pipeline; set up fixed slotted hole and communicate with inlet channel down in the connector down, differential pressure sensor install in fixed slotted hole, compress tightly the cap and install in differential pressure sensor's upper end, go up the connector install in the upper end that compresses tightly the cap and with connector threaded connection down, compress tightly and offer on the cap all communicating connect the via hole with last inlet channel and differential pressure sensor.
By adopting the technical scheme, the differential pressure sensor is quickly disassembled and assembled, and the testing efficiency is improved.
Furthermore, a sealing baffle plate is arranged on the pressing cap, the inner side of the sealing baffle plate is connected with the differential pressure sensor, and the outer side of the sealing baffle plate is connected with the lower connector.
Generally, the inner side surface of the sealing baffle is tightly connected with the differential pressure sensor, and the outer side surface of the sealing baffle is also tightly connected with the inner side of the fixing groove hole of the lower connector, so that the differential pressure sensor is quickly fixed, the test result is prevented from being influenced by the deviation in the pressurizing process, and the sealing test environment of the differential pressure sensor is ensured.
Furthermore, an upper sealing ring is arranged between the pressing cap and the upper connector.
Through adopting above-mentioned technical scheme, guaranteed the leakproofness between compress tightly cap and the last connector.
Furthermore, a lower sealing ring is arranged between the differential pressure sensor and the lower connector.
Through adopting above-mentioned technical scheme, guaranteed the leakproofness between differential pressure sensor and the lower connector.
Furthermore, the lower end connecting pipeline comprises an air duct, a communicating pipeline and a lower air branch pipe, the lower air branch pipe is connected with an air outlet at the lower end of the three-way valve, the lower air branch pipe is connected with the air duct, and the air ducts are connected in parallel through the communicating pipeline to form an air duct group; the air ducts are connected with a plurality of lower connecting pipes which are evenly arranged, and the lower connecting pipes are connected with the lower connectors of the pressurizing sleeves.
Through adopting above-mentioned technical scheme, realized down the branch pipe of ventilating and through lower extreme connecting tube connection, can be simultaneously to the purpose that a plurality of pressurization suit's lower connector admits air simultaneously.
Furthermore, the upper end connecting pipeline is provided with an upper air branch pipe, the upper air branch pipe is connected with an air outlet at the upper end of the three-way valve, the upper air branch pipe is connected with a plurality of branch pipe branch pipes in parallel, the branch pipe branch pipes are connected with upper connecting pipes with the same number as the lower connecting pipes, and the upper connecting pipes are connected with upper connectors of the pressurizing sleeve.
Through adopting above-mentioned technical scheme, realized the branch pipe of ventilating on through upper end connecting line connection, can be simultaneously to the purpose that a plurality of pressurization suit's last connector admitted air simultaneously, improved holistic work efficiency.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) through setting up connecting line, pressurization suit, connecting line and three-way valve down, realized that once pressure strikes can carry out the purpose of pressure test simultaneously to differential pressure sensor's upper and lower both ends, need not repetitious, improved work efficiency, labour saving and time saving.
(2) The pressurization suit has realized quick installation in the dismantlement of differential pressure sensor in the testing process through setting up connector, lower connector and compressing tightly the cap, has improved work efficiency.
Drawings
Fig. 1 is a schematic structural view of a batch differential pressure sensor pressurization testing device of the present invention;
fig. 2 is a schematic structural view of the pressurizing suit of the present invention.
In the figure: 1, connecting a pipeline at the upper end, 2, connecting a pipeline at the lower end, 3, sleeving a pressurizing sleeve, 4 lower connecting pipes, 5 communicating pipelines, 6 vent pipelines, 7 lower vent branch pipes, 8 three-way valves, 9 main vent pipes, 10 upper vent branch pipes and 11 differential pressure sensors;
the structure comprises an upper connector 31, an upper air inlet channel 32, a pressing cap 33, an upper sealing ring 34, a sealing baffle 35, a fixing slotted hole 36, a lower connector 37, a lower air inlet channel 38 and a lower sealing ring 39.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
As shown in fig. 1, the utility model discloses a batch differential pressure sensor pressurization testing arrangement's structural schematic diagram, shown batch differential pressure sensor pressurization testing arrangement is equipped with main breather pipe 9, and main breather pipe 9 is connected with three-way valve 8's air inlet, and three-way valve 8's gas outlet is connected with last branch 10 and the branch 7 of ventilating down respectively, and main breather pipe 9 is through the branch 10 of ventilating on the three-way valve 8 simultaneous control and the pressurization of admitting air of branch 7 of ventilating down.
The upper ventilation branch pipe 10 is connected with a plurality of branch pipe branch pipes in parallel, the branch pipe branch pipes are connected with a plurality of upper connecting pipes which are uniformly arranged, the upper connecting pipes are hermetically connected with an upper connector 31 of the pressurizing sleeve 3, and the upper connector 31 is a quick connector, so that the upper end pressurizing test of the differential pressure sensor 11 is realized; meanwhile, a plurality of vent pipes 6 are connected to the lower vent branch pipe 7 in parallel, a plurality of lower connecting pipes 4 which are uniformly arranged are connected to the vent pipes 6, the lower connecting pipes 4 are connected with the lower connecting heads 37 of the pressurizing suit 3 in a sealing mode, air is simultaneously fed to the upper end and the lower end of the differential pressure sensor 11, the air source can simultaneously apply the same pressure to the upper end and the lower end of a product through the three-way valve 8, pressurizing detection is carried out, the problem that negative pressure end pressurizing glue is not tolerant is solved, meanwhile, the testing time of common products is saved, sequential testing is completed, positions do not need to be changed, and labor cost is saved.
As shown in fig. 2, the utility model discloses a mechanism schematic diagram of pressurization suit 3 has been given, is equipped with in the pressurization suit 3 shown and compresses tightly cap 33, has seted up spacing recess in the last connector 31, has seted up fixed slotted hole 36 in the lower connector 37, and differential pressure sensor 11 inserts in the fixed slotted hole 36, and differential pressure sensor 11's side meets with the medial surface of fixed slotted hole 36, prevents that differential pressure sensor 11 from taking place to remove when carrying out the punching press test, influences the accuracy of detecting data. An O-shaped lower sealing ring 39 is arranged between the differential pressure sensor 11 and the fixed slotted hole 36, so that the sealing property between the differential pressure sensor 11 and the lower connector 37 is ensured; the lower end of the lower connector 37 is provided with a lower air inlet pipe 38, and the upper end and the lower end of the lower air inlet pipe 38 are respectively communicated with the fixed slotted hole 36 and the lower connecting pipe 4. The pressing cap 33 is disposed at the upper end of the differential pressure sensor 11, and the pressing cap 33 is provided with a connecting through hole communicated with both the upper air inlet channel 32 and the differential pressure sensor 11 for a flow channel of the pressurized gas. The side surface of the differential pressure sensor 11 is seamlessly connected with the inner side surface of the pressing cap 33, so that the stability of the differential pressure sensor 11 during inflation and pressurization is ensured. The pressing cap 33 is fixed in the limit groove of the upper connector 31, and an O-shaped upper sealing ring 34 is arranged between the pressing cap 33 and the upper connector 31, so that the sealing performance between the pressing cap 33 and the upper connector 31 is ensured. Go up connector 31 and lower connector 37 threaded connection, convenient to detach and installation have accelerated differential pressure sensor 11's test speed, have improved work efficiency.
The inner side of a sealing baffle 35 on the pressing cap 32 is in seamless connection with the differential pressure sensor 11, and the outer side of the sealing baffle 35 is tightly connected with the side wall of a fixed slotted hole 36 formed in the lower connector 37, so that the sealing connection between the pressing cap 33 and the differential pressure sensor 11 is ensured, the sealing connection between the pressing cap 33 and the lower connector 37 is also ensured, and the sealing performance of the whole pressing sleeve 3 is improved.
The utility model discloses a batch differential pressure sensor pressurization testing arrangement is when using, at first insert differential pressure sensor 11 down in the fixed slotted hole 36 of connector 37, then will compress tightly cap 33 lid and press in differential pressure sensor 11's upper end, will go up connector 31 at last and screw up through the screw and realize sealing connection with lower connector 37, can blow to main breather pipe 9 after the differential pressure sensor installation is accomplished, when exerting pressure like this, can exert the same pressure to differential pressure sensor 11's positive negative chamber simultaneously, test the detection to differential pressure sensor 11, convenient and fast, time saving and labor saving, and the operation work efficiency of mass is high, whole production efficiency has been improved.
Claims (7)
1. The utility model provides a batch differential pressure sensor pressurization testing arrangement which characterized in that: the device comprises an upper end connecting pipeline (1), a pressurizing sleeve (3), a lower end connecting pipeline (2) and a three-way valve (8), wherein a main vent pipe (9) is respectively connected with the upper end connecting pipeline (1) and the lower end connecting pipeline (2) through the three-way valve (8), the upper end connecting pipeline (1) and the lower end connecting pipeline (2) are respectively communicated with the upper end and the lower end of the pressurizing sleeve (3), and a differential pressure sensor (11) is hermetically arranged in the pressurizing sleeve (3).
2. The batch differential pressure sensor pressurization testing apparatus of claim 1, wherein: the pressurizing suit (3) comprises an upper connector (31), a lower connector (37) and a pressing cap (33), wherein an upper air inlet channel (32) is formed in the upper connector (31), the upper air inlet channel (32) is communicated with the upper end connecting pipeline (1), a lower air inlet channel (38) is formed in the lower connector (37), and the lower air inlet channel (38) is communicated with the lower end connecting pipeline (2); set up fixed slotted hole (36) and communicate with lower inlet channel (38) in connector (37) down, differential pressure sensor (11) install in fixed slotted hole (36), compress tightly cap (33) and install in differential pressure sensor's (11) upper end, go up connector (31) and install in the upper end that compresses tightly cap (33) and with connector (37) threaded connection down, compress tightly cap (33) and go up and offer on the cap (33) and all communicating connect the via hole with last inlet channel (32) and differential pressure sensor (11).
3. The batch differential pressure sensor pressurization testing apparatus of claim 2, wherein: the pressure cap (33) is provided with a sealing baffle (35), the inner side of the sealing baffle (35) is connected with the differential pressure sensor (11), and the outer side of the sealing baffle (35) is connected with the lower connector (37).
4. The batch differential pressure sensor pressurization testing apparatus of claim 2, wherein: an upper sealing ring (34) is arranged between the pressing cap (33) and the upper connector (31).
5. The batch differential pressure sensor pressurization testing apparatus of claim 2, wherein: and a lower sealing ring (39) is arranged between the differential pressure sensor (11) and the lower connector (37).
6. The batch differential pressure sensor pressurization testing apparatus of claim 2, wherein: the lower end connecting pipeline (2) comprises an air duct (6), a communicating pipeline (5) and a lower air branch pipe (7), the lower air branch pipe (7) is connected with an air outlet at the lower end of the three-way valve (8), the lower air branch pipe (7) is connected with the air duct (6), and the air ducts (6) are connected in parallel through the communicating pipeline (5) to form an air duct group; the air ducts (6) are connected with a plurality of lower connecting pipes (4) which are uniformly arranged, and the lower connecting pipes (4) are connected with lower connectors (37) of the pressurizing suit (3).
7. The batch differential pressure sensor pressure test device of claim 6, wherein: the upper end connecting pipeline (1) is provided with an upper air-ventilating branch pipe (10), the upper air-ventilating branch pipe (10) is connected with an air outlet at the upper end of the three-way valve (8), the upper air-ventilating branch pipe (10) is connected with a plurality of branch pipe branch pipes in parallel, the branch pipe branch pipes are connected with upper connecting pipes which are equal to the lower connecting pipes (4) in number, and the upper connecting pipes are connected with an upper connector (31) of the pressurizing suit (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220985453.4U CN217179833U (en) | 2022-04-26 | 2022-04-26 | Batch differential pressure sensor pressurization testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220985453.4U CN217179833U (en) | 2022-04-26 | 2022-04-26 | Batch differential pressure sensor pressurization testing device |
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| CN217179833U true CN217179833U (en) | 2022-08-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117073930A (en) * | 2023-10-19 | 2023-11-17 | 苏州尚驰机械有限公司 | Tightness detection device of honeycomb sealing element |
| CN117968937A (en) * | 2024-04-01 | 2024-05-03 | 沈阳仪表科学研究院有限公司 | Differential pressure sensor testing device |
-
2022
- 2022-04-26 CN CN202220985453.4U patent/CN217179833U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117073930A (en) * | 2023-10-19 | 2023-11-17 | 苏州尚驰机械有限公司 | Tightness detection device of honeycomb sealing element |
| CN117073930B (en) * | 2023-10-19 | 2024-01-30 | 苏州尚驰机械有限公司 | Tightness detection device of honeycomb sealing element |
| CN117968937A (en) * | 2024-04-01 | 2024-05-03 | 沈阳仪表科学研究院有限公司 | Differential pressure sensor testing device |
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