Withstand voltage test device

Abstract

The utility model discloses a pressure resistance testing device, which is used for carrying out a pressure resistance test on a reagent bottle and is characterized by comprising a valve group, a protection device and an alarm indicating device. Wherein the valve group is used for communicating an air source with the reagent bottle; the reagent bottle is provided with a pressure sensor, the protection device comprises a protection cavity used for containing the reagent bottle and a display screen used for displaying pressure information, and an air inlet of the reagent bottle is used for being communicated with an air supply pipe of the valve set; and the alarm indication device is arranged on the protection device and gives an alarm indication when the pressure of the reagent bottle is abnormal. The withstand voltage test device disclosed by the embodiment of the utility model is simple in structure and convenient to operate. Through detection, the quality of the reagent bottle is guaranteed, the possibility that the reagent bottle is broken and the reagent leaks to release toxicity and burn in the using process is reduced, and the personal safety of workers is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of nucleic acid synthesis, in particular to a pressure resistance testing device. Background Art

[0002] The reagent bottles used for nucleic acid synthesis are brown glass bottles. In nucleic acid synthesis, a large number of reagent bottles are used and placed on the ground or platform. If they are not handled properly, the reagent bottles are prone to fall over and bump into each other. Because there is a certain pressure in the reagent bottles, if cracks are generated due to bumps, there is a risk of explosion. Nucleic acid synthesis reagents are hazardous chemicals with certain toxicity and flammability. If the synthesis reagents leak, there is a great risk.

[0003] Therefore, how to test the pressure resistance of reagent bottles, test the quality of reagent bottles, and ensure the safety performance of reagent bottles is a technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a pressure resistance testing device to detect the quality of reagent bottles and ensure the safety performance of the reagent bottles.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A pressure test device is used to perform a pressure test on a reagent bottle, and the pressure test device comprises:

[0007] Valve group, used to connect the gas source and the reagent bottle;

[0008] A protective device, wherein the reagent bottle is provided with a pressure sensor, the protective device comprises a protective cavity for holding the reagent bottle and a display screen for displaying pressure information, and an air inlet of the reagent bottle is used to communicate with an air supply pipe of the valve group;

[0009] The alarm indicating device is arranged on the protective device, and the alarm indicating device sends out an alarm indication when the pressure of the reagent bottle is abnormal.

[0010] Optionally, in the above-mentioned pressure resistance testing device, the valve group includes a gas self-closing valve, a solenoid valve and a pressure reducing valve, the inlet of the pressure reducing valve is connected to the gas source, the inlet of the solenoid valve is connected to the outlet of the pressure reducing valve, the inlet of the gas self-closing valve is connected to the outlet of the solenoid valve, the outlet of the gas self-closing valve is connected to the reagent bottle, the solenoid valve is electrically connected to a controller arranged on the protective device, and the display screen is electrically connected to the controller.

[0011] Optionally, in the above-mentioned pressure resistance testing device, the valve group also includes a pressure relief valve, the inlet of the pressure relief valve is connected to the outlet of the gas self-closing valve, and the outlet of the pressure relief valve is connected to the reagent bottle.

[0012] Optionally, in the above-mentioned pressure resistance testing device, the reagent bottle is sealed by a reagent bottle cap, the bottle mouth of the reagent bottle is threadedly matched with the reagent bottle cap, a sealing ring is arranged on the reagent bottle cap, and the air inlet is arranged on the reagent bottle cap.

[0013] Optionally, in the above-mentioned pressure resistance testing device, the protective device is provided with a protective door, the protective door is hinged to the protective device, and a handle is provided on the protective door.

[0014] Optionally, in the above-mentioned pressure resistance testing device, the protective door is provided with a door lock.

[0015] Optionally, in the above-mentioned pressure resistance testing device, the pressure sensor is threadably matched with and sealed on the reagent bottle cap, and the sensing head of the pressure sensor extends into the reagent bottle.

[0016] Optionally, in the above-mentioned voltage withstand testing device, the display screen is a touch-type liquid crystal display screen.

[0017] Optionally, in the above-mentioned voltage withstand test device, the alarm indication device is an indicator light, and the indicator light includes a first indicator light, a second indicator light and a third indicator light.

[0018] Optionally, in the above-mentioned pressure resistance testing device, the medium in the air supply pipe is compressed air.

[0019] The pressure test device disclosed in the embodiment of the utility model is used for pressure testing of reagent bottles, including a valve group, a protective device and an alarm indicator device. When in use, the reagent bottle is placed in the protective cavity, the gas source is pressurized by transmitting gas to the reagent bottle through the gas supply pipe, the pressure in the reagent bottle is measured by the pressure sensor, and the gas pressure is maintained at the set pressure by adjusting the valve group. If the reagent bottle is maintained at the set pressure for a set time and does not break, it is qualified. If the reagent bottle breaks or even explodes or due to reasons such as damaged bottle mouth and loose sealing, it is unqualified and shall not be used. When the reagent bottle breaks, the setting of the protective device ensures that the broken fragments of the reagent bottle remain in the protective cavity and will not splash everywhere to injure people. When the pressure is abnormal, the alarm indicator device sends an alarm indication, which is convenient for the staff to find and solve the problems in time.

[0020] The pressure-resistant test device disclosed in the embodiment of the utility model has a simple structure and is easy to operate. Through detection, the quality of the reagent bottle is guaranteed, the safety performance of the reagent bottle is guaranteed, the possibility of the reagent bottle breaking during use, the leakage of the reagent, the release of toxicity and combustion is reduced, and the personal safety of the staff is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a front view of the withstand voltage test device disclosed in the embodiment of the utility model;

[0023] Figure 2 It is a left view of the withstand voltage test device disclosed in the embodiment of the utility model;

[0024] Figure 3 It is a top view of the voltage withstand testing device disclosed in an embodiment of the utility model.

[0025] Figure 1-Figure 3 The meanings of the reference numerals in the figure are as follows:

[0026] 10 is a reagent bottle, 20 is a protective device, 201 is a protective cavity, 202 is a display screen, 203 is a protective door, 204 is a handle, 205 is a door lock, 30 is a pressure sensor, 40 is a gas self-closing valve, 50 is an alarm indicating device, 60 is a solenoid valve, 70 is a pressure reducing valve, 701 is an inlet pressure gauge, 702 is an outlet pressure gauge, 80 is a reagent bottle cap, and 90 is a gas cylinder. DETAILED DESCRIPTION

[0027] The core of the utility model is to provide a pressure resistance testing device to detect the quality of a reagent bottle and ensure the safety performance of the reagent bottle.

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figure 1 As shown, the embodiment of the utility model discloses a pressure test device for performing pressure test on a reagent bottle 10, including a valve group, a protection device 20 and an alarm indicator device 50. It should be noted that the reagent bottle 10 here refers to the reagent bottle 10 used in the nucleic acid synthesis process.

[0030] The valve group is used to connect the gas source and the reagent bottle 10. The gas source can be a gas cylinder 90 or a centralized gas supply. The gas source is described below using the gas cylinder 90 as an example. The gas cylinder 90 includes a gas cylinder outlet valve. The gas medium of the gas source is preferably compressed air. The valve group can adjust the pressure of the gas medium and cut off the connecting pipeline between the gas source and the reagent bottle 10 to play a shutoff role.

[0031] In order to monitor the pressure in the reagent bottle 10 , the reagent bottle 10 is provided with a pressure sensor 30 . Specifically, the pressure sensor 30 is threadedly connected and sealed to the reagent bottle 10 . The pressure sensor 30 is used to monitor the pressure in the reagent bottle 10 .

[0032] The protective device 20 includes a protective cavity 201 for holding the reagent bottle 10 and a display screen 202 for displaying pressure information. Specifically, a fixed plate is provided in the protective cavity 201, and a limit groove is provided on the fixed plate, and the reagent bottle 10 is arranged in the limit groove. A fixed clamp can also be provided in the protective cavity 201, and the reagent bottle 10 is fixed by the fixed clamp. In order to further provide a protective effect to the reagent bottle 10, an inner cylinder can be provided in the protective cavity 201, and the reagent bottle 10 is placed in the inner cylinder. The specific method is not limited and can be specifically set according to actual conditions. The protective device 20 ensures that the broken fragments of the reagent bottle 10 will remain in the protective device 20 and will not splash around and injure people.

[0033] The protective device 20 is provided with a display screen 202, which is used to display the pressure information in the reagent bottle 10 measured by the pressure sensor 30. Specifically, the pressure sensor 30 is electrically connected to the display screen 202. The display screen 202 is provided to facilitate the staff to view the pressure information. Specifically, the display screen 202 can be a touch-type liquid crystal display screen. In order to ensure the protective effect of the protective device 20, the material of the protective device 20 can be an iron box, an aluminum alloy box, a stainless steel box, etc.

[0034] The alarm indicating device 50 is arranged on the protective device 20 and is electrically connected to the display screen 202. The alarm indicating device 50 can be fixed on the protective device 20 by bolts and nuts, or by other fixing methods. When the pressure in the reagent bottle 10 measured by the pressure sensor 30 is different from the set pressure value, such as overpressure or underpressure, the alarm indicating device 50 sends out an alarm, specifically, the alarm can be sent out by an indicator light or a buzzer. The setting of the alarm indicating device 50 can send out an alarm signal to remind the staff to find and solve the problem in time to avoid damage to the reagent bottle 10 caused by excessive or insufficient pressure.

[0035] The pressure resistance testing device disclosed in the embodiment of the utility model is installed by fixing the gas cylinder 90, which can be placed on a bracket or prevented from tipping over by other fixing methods. The reagent bottle 10 is placed in the protective cavity 201, and the gas cylinder 90 and the air inlet of the reagent bottle 10 are connected through the valve group. The pressure sensor 30 is set in the reagent bottle 10, and the pressure sensor 30 is electrically connected to the display screen 202 to complete the pipeline installation. At this time, the valves in the valve group are all in the closed state.

[0036] Open the gas cylinder outlet valve subsequently, make compressed air maintain set pressure by adjusting valve group, make compressed air be pressurized by gas source to reagent bottle 10 by adjusting valve group at the same time, under set pressure, maintain 60 seconds, if reagent bottle 10 is intact, then be qualified. If reagent bottle 10 breaks or even explodes or because of bottle mouth damage, lax sealing and other reasons, then be unqualified, then do not use. After detection, cut off the communication of gas source and reagent bottle 10 by closing valve group, vent the pressure in the gas supply pipe of reagent bottle 10 and valve group, take out reagent bottle 10, can carry out the detection of next reagent bottle 10.When pressure deviates from set pressure, alarm indicator device 50 sends alarm signal, reminds staff to find and deal with problems in time.

[0037] The pressure test device disclosed in the embodiment of the utility model has a simple structure and is easy to operate. Through detection, the quality of the reagent bottle 10 is guaranteed, the safety performance of the reagent bottle 10 is guaranteed, the possibility of the reagent bottle 10 breaking during use, the leakage of the reagent, the release of toxicity and the possibility of combustion are reduced, and the personal safety of the staff is guaranteed.

[0038] like Figure 2-Figure 3 As shown, in a specific embodiment of the utility model, the valve group includes a gas self-closing valve 40, a solenoid valve 60 and a pressure reducing valve 70. Wherein, the inlet of the pressure reducing valve 70 is communicated with the gas source, the inlet of the solenoid valve 60 is communicated with the outlet of the pressure reducing valve 70, the inlet of the gas self-closing valve 40 is communicated with the outlet of the solenoid valve 60, and the outlet of the gas self-closing valve 40 is communicated with the reagent bottle 10. It should be noted that the gas self-closing valve 40 has the functions of automatic closing in overpressure and automatic closing in underpressure, without electricity or other external power, and can play a role in protecting and preventing gas loss. The gas self-closing valve 40 can be automatically closed but must be manually started. When there is an overpressure or underpressure in the gas supply, the gas self-closing valve 40 can be automatically closed to cut off the communication between the gas source and the reagent bottle 10. The gas self-closing valve 40 passes through the hole provided on the protective cavity 201 through the trachea and is connected to the reagent bottle 10. The solenoid valve 60 and the pressure reducing valve 70 are commonly used valves, and their specific structures and principles are not repeated here.

[0039] The protective device 20 is provided with a controller, the solenoid valve 60 is electrically connected to the controller, and the display screen 202 is electrically connected to the controller. By operating the display screen 202, the opening and closing of the solenoid valve 60 can be controlled. Alternatively, the display screen 202 can use a touch screen that integrates control and display functions, and by operating the display screen 202, the opening and closing of the solenoid valve 60 can be controlled. It should be noted that the pressure reducing valve 70 is equipped with an inlet pressure gauge 701 and an outlet pressure gauge 702. The pressure displayed by the inlet pressure gauge 701 is the pressure of the gas at the outlet of the gas cylinder 90, and the pressure displayed by the outlet pressure gauge 702 is the pressure of the gas after decompression.

[0040] When in use, first open the outlet valve of the gas cylinder, and reduce the pressure of the gas at the outlet of the gas cylinder 90 by turning the manual knob on the pressure reducing valve 70. When the pressure value displayed by the outlet pressure gauge 702 reaches the set pressure, stop feeding the manual knob. When the pointer of the outlet pressure gauge 702 remains at the set pressure for a certain period of time and stabilizes within a certain range, it indicates that the gas source system is intact.

[0041] After the pressure reducing valve 70 is operated, the gas self-closing valve 40 is opened by pulling out the button on the gas self-closing valve 40 to the middle position, and then the electromagnetic valve 60 is started through the display screen 202, so that the gas enters the reagent bottle 10. After the pressure detection of the reagent bottle 10 is completed, the electromagnetic valve 60 is closed through the display screen 202, or the button on the gas self-closing valve 40 can be pressed to the lower position to close the gas self-closing valve 40, and the reagent bottle 10 is removed. After the test is completed, the gas cylinder outlet valve is closed, the manual knob on the pressure reducing valve 70 is rotated counterclockwise to the exit state, that is, the pressure reducing valve 70 is closed, and then the button on the gas self-closing valve 40 is pulled out to the middle position to open the gas self-closing valve 40, so that the gas is leaked into the air through the gas supply pipe, and the pointer of the outlet pressure gauge 702 returns to zero at this time, and then the electromagnetic valve 60 is closed, and then the button of the gas self-closing valve 40 is manually pressed to the lower position to close the pipeline, waiting for the next use.

[0042] When the system pressure exceeds the set pressure due to improper operation or other reasons, the pressure sensor 30 transmits a signal to the display screen 202, and the alarm indicator device 50 alarms at this time, indicating that the system is abnormal; at the same time, the electromagnetic valve 60 is controlled to be closed through the display screen 202; the button of the gas self-closing valve 40 will pop up to the upper position due to overpressure and automatically close, thereby protecting the reagent bottle 10 from damage due to overpressure. Then, the manual knob on the pressure reducing valve 70 is turned left to the exit state, that is, the pressure reducing valve 70 is closed; then the pressure relief switch on the pressure reducing valve 70 is pulled to release the pressure, and then the manual knob on the pressure reducing valve 70 is turned right to make the pointer of the outlet pressure gauge 702 turn right from 0 to indicate the pressure value of the gas after decompression. When the pressure value reaches the set value, the manual knob is stopped from feeding. When the pointer remains at this pressure value for a certain period of time and indicates stability, it means that the system is intact and normal test operation can be started. It should be noted that the left-hand and right-hand indications here are given as examples, and the specific rotation direction can be set according to actual conditions.

[0043] When the system pressure is lower than the set pressure due to improper operation or other reasons, the pressure sensor 30 transmits a signal to the display screen 202, and the alarm indicator device 50 alarms at this time, indicating that the system is abnormal; the solenoid valve 60 is controlled to be closed through the display screen 202, and the button of the gas self-closing valve 40 will be automatically closed due to underpressure and retracted downward to the lower position, thereby protecting the gas cylinder 90 from maintaining the positive pressure requirement. At this time, check the pressure value of the inlet pressure gauge 701 to determine whether the pressure of the gas cylinder 90 is reduced due to use, and whether the gas cylinder 90 needs to be replaced. If the pointer of the inlet pressure gauge 701 indicates that the gas pressure value in the gas cylinder 90 is normal, it can be tested whether the gas supply pipe is leaking (soap water can be used). If it is leaking, it needs to be re-tightened and normal test operation can be started again. When an erroneous operation occurs, if the button of the gas self-closing valve 40 is not manually pressed to the lower position to automatically close the gas supply pipe and the reagent bottle 10 is unscrewed, the gas self-closing valve 40 will also be automatically closed due to pressure loss to protect the gas in the gas cylinder 90 from flowing out and being wasted.

[0044] In a specific embodiment of the utility model, the valve group also includes a pressure relief valve, which is not shown in the figure. Specifically, the inlet of the pressure relief valve is connected to the outlet of the gas self-closing valve 40, and the outlet of the pressure relief valve is connected to the reagent bottle 10. After the test is completed, the solenoid valve 60 is closed, the pressure relief valve is opened, and the gas in the gas supply pipe of the valve group and the reagent bottle 10 is discharged, and then the reagent bottle 10 is taken out to avoid danger when taking out the reagent bottle 10.

[0045] like Figure 1-Figure 2As shown, in a specific embodiment of the utility model, the reagent bottle 10 cooperates with the reagent bottle cap 80 for sealing. Specifically, the bottle mouth of the reagent bottle 10 is threadedly matched with the reagent bottle cap 80. By screwing the reagent bottle cap 80, the reagent bottle cap 80 is completely screwed onto the bottle mouth of the reagent bottle 10. In order to ensure the sealing performance, a sealing ring is provided in the reagent bottle cap 80. The threaded matching mode is simple to operate. The air inlet is arranged on the reagent bottle cap 80, and the air supply pipe of the valve group is sealed and connected with the reagent bottle cap 80. The pressure sensor 30 is threadedly matched with the reagent bottle cap 80. In order to ensure the sealing performance of the reagent bottle 10, the reagent bottle cap 80 is provided with a sealing ring at the connection of the pressure sensor 30. The reagent bottle 10 can also be sealed by a stopper, and the stopper is provided with a sealing stopper and a sealing ring of the reagent bottle, and a ring cover for pressing the stopper is also provided, and the ring cover is engaged with the flange of the bottle mouth of the reagent bottle 10.

[0046] On the basis of the above embodiment, the protective device 20 is provided with a protective door 203, which is hinged to the protective device 20 through a hinge, and a handle 204 is provided on the protective door 203. Specifically, the handle 204 is fixed to the protective door 203 by screws, and the hinge is fixedly connected to the protective cavity 201 and the protective door 203 by screws respectively.

[0047] In order to ensure that the protective door 203 is tightly closed during the test, based on the above embodiment, the protective door 203 is provided with a door lock 205. The number of the door locks 205 can be one or more. Figure 1 There are two door locks 205, which are fixed to the protective door 203 by nuts provided therewith. The reagent bottle 10 is tightened with the reagent bottle cap 80, the protective door 203 is closed, and the door lock 205 is locked, and the pressure resistance test of the reagent bottle 10 can be performed.

[0048] The pressure test device disclosed in the embodiment of the utility model has an alarm indicating device 50 as an indicator light, which includes a first indicator light, a second indicator light and a third indicator light. When the pressure detected by the pressure sensor 30 is qualified, the first indicator light flashes in green, when the pressure is over-pressured, the second indicator light flashes in yellow, and when the pressure is insufficient, the third indicator light flashes in red. The setting of the three indicator lights can facilitate the staff to quickly find problems in the system.

[0049] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0050] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.

[0051] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0052] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A pressure test device for performing a pressure test on a reagent bottle (10), characterized in that: The withstand voltage test device comprises: A valve assembly, used for connecting the gas source with the reagent bottle (10); A protective device (20), wherein the reagent bottle (10) is provided with a pressure sensor (30), the protective device (20) comprises a protective cavity (201) for containing the reagent bottle (10) and a display screen (202) for displaying pressure information, and an air inlet of the reagent bottle (10) is used to communicate with an air supply pipe of the valve group; An alarm indicating device (50) is arranged on the protective device (20), and the alarm indicating device (50) issues an alarm indication when the pressure in the reagent bottle (10) is abnormal.

2. The withstand voltage test device according to claim 1, characterized in that: The valve group comprises a gas self-closing valve (40), a solenoid valve (60) and a pressure reducing valve (70); the inlet of the pressure reducing valve (70) is connected to the gas source; the inlet of the solenoid valve (60) is connected to the outlet of the pressure reducing valve (70); the inlet of the gas self-closing valve (40) is connected to the outlet of the solenoid valve (60); the outlet of the gas self-closing valve (40) is connected to the reagent bottle (10); the solenoid valve (60) is electrically connected to a controller arranged on the protective device (20); and the display screen (202) is electrically connected to the controller.

3. The withstand voltage test device according to claim 2, characterized in that: The valve assembly further comprises a pressure relief valve, the inlet of the pressure relief valve being in communication with the outlet of the gas self-closing valve (40), and the outlet of the pressure relief valve being in communication with the reagent bottle (10).

4. The withstand voltage test device according to claim 3, characterized in that: The reagent bottle (10) is sealed by a reagent bottle cap (80); the mouth of the reagent bottle (10) is threadably matched with the reagent bottle cap (80); a sealing ring is provided on the reagent bottle cap (80); and the air inlet is provided on the reagent bottle cap (80).

5. The withstand voltage test device according to claim 1, characterized in that: The protection device (20) is provided with a protection door (203), the protection door (203) is hinged to the protection device (20), and the protection door (203) is provided with a handle (204).

6. The withstand voltage test device according to claim 5, characterized in that: The protective door (203) is provided with a door lock (205).

7. The withstand voltage test device according to claim 4, characterized in that: The pressure sensor (30) is threadably matched with the reagent bottle cap (80) and sealed, and the sensing head of the pressure sensor (30) extends into the reagent bottle (10).

8. The withstand voltage test device according to claim 1, characterized in that: The display screen (202) is a touch-type liquid crystal display screen.

9. The withstand voltage test device according to any one of claims 1 to 8, characterized in that: The alarm indicating device (50) is an indicator light, and the indicator light comprises a first indicator light, a second indicator light and a third indicator light.

10. The withstand voltage test device according to any one of claims 1 to 8, characterized in that: The medium in the air supply pipe is compressed air.

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