阅读说明：本技术 一种具有修正高度差功能的隔离器 (Isolator with revise difference in height function ) 是由 黄伟 陆蕊 廖植敏 彭义琴 覃雨婷 唐寄峰 于 2021-08-04 设计创作，主要内容包括：本发明公开了一种具有修正高度差功能的隔离器,包括安装仓,所述安装仓的底部安装有自动标准压力发生器,所述安装仓顶部的中间位置处设置有液体活塞式压力计组件,所述液体活塞式压力计组件的外侧设置有相互配合的砝码组件,所述安装仓顶部一端的一侧安装有安装管,且安装管的顶端安装有隔离仓,所述隔离仓的内顶部设置有液位传感器。本发明通过砝码组件、液体活塞式压力计组件、隔离仓、安装管、液体调压器、安装仓、自动标准压力发生器、气体调压器和液位传感器的配合使用,利用隔离仓将气体和液体隔离开,也能避免部分特殊产品直接与油液接触,从而极大地保证了检测装置对产品的检测精度,也提高了该隔离器的使用效果。(The invention discloses an isolator with a height difference correcting function, which comprises an installation bin, wherein an automatic standard pressure generator is installed at the bottom of the installation bin, a liquid piston type pressure gauge assembly is arranged in the middle of the top of the installation bin, weight assemblies which are matched with each other are arranged on the outer side of the liquid piston type pressure gauge assembly, an installation pipe is installed on one side of one end of the top of the installation bin, an isolation bin is installed at the top end of the installation pipe, and a liquid level sensor is arranged on the inner top of the isolation bin. According to the invention, through the matching use of the weight component, the liquid piston type pressure gauge component, the isolation bin, the mounting pipe, the liquid pressure regulator, the mounting bin, the automatic standard pressure generator, the gas pressure regulator and the liquid level sensor, the isolation bin is utilized to isolate gas and liquid, and part of special products can be prevented from directly contacting with oil, so that the detection precision of the detection device on the products is greatly ensured, and the use effect of the isolator is also improved.)

1. An isolator with a function of correcting a height difference, comprising a mounting bin (7), characterized in that: the automatic standard pressure generator (8) is installed at the bottom of the installation bin (7), a liquid piston type pressure gauge assembly (3) is arranged at the middle position of the top of the installation bin (7), a weight assembly (2) which is matched with each other is arranged on the outer side of the liquid piston type pressure gauge assembly (3), an installation pipe (5) is installed at one side of one end of the top of the installation bin (7), a separation bin (4) is installed at the top end of the installation pipe (5), a liquid level sensor (15) is arranged at the inner top of the separation bin (4), a liquid pressure regulator (6) is installed at one end, far away from one side of the installation pipe (5), of the inner top of the installation bin (7), a gas pressure regulator (12) is installed at the other end, far away from one side of the installation pipe (5), of the inner top of the installation bin (7), a first four-way valve (13) is installed at one end, near one side of the liquid pressure regulator (6), the installation structure is characterized in that a second four-way valve (14) is installed at one end, close to one side of a gas pressure regulator (12), of the top in an installation bin (7), one side, far away from an installation pipe (5), of the bottom in the installation bin (7) is provided with an adjusting assembly (9) communicated with a first four-way valve (13) and a second four-way valve (14), and one end, close to one side of the installation pipe (5), of the top in the installation bin (7) is provided with a workbench assembly (1).

2. An isolator having a function of correcting a height difference according to claim 1, wherein: the adjusting component (9) comprises a hydraulic cylinder body (901), a piston (902), a threaded rod (903), fixed bearings (904), strip-shaped sliding grooves (905), a connecting bearing (906), a pneumatic cylinder body (907), a rotating pipe (908), a first bevel gear (909), a second bevel gear (910) and a limiting sliding strip (911), wherein the fixed bearings (904) are symmetrically installed at the middle position of one side of the bottom in the installation bin (7) far away from the isolation bin (4), the rotating pipe (908) is installed on the inner sides of the two groups of fixed bearings (904), the threaded rod (903) is arranged on the inner side of the rotating pipe (908), the limiting sliding strip (911) is arranged on the inner side of the threaded rod (903), the strip-shaped sliding grooves (905) matched with the limiting sliding strips (911) are arranged on the outer side of the threaded rod (903), the second bevel gear (910) is installed on the outer side of the rotating pipe (908), a first bevel gear (909) meshed with the second bevel gear (910) is arranged at the middle position of one side of the mounting bin (7) far away from the isolation bin (4), two ends of the outer side of the threaded rod (903) are respectively provided with a hydraulic cylinder body (901) and a pneumatic cylinder body (907) in a threaded manner, the bottoms of the hydraulic cylinder body (901) and the air pressure cylinder body (907) are fixedly connected with the inner bottom of the mounting bin (7), pistons (902) are arranged inside the hydraulic cylinder body (901) and the air pressure cylinder body (907), connecting bearings (906) are symmetrically arranged at one ends of the two groups of pistons (902) close to each other, the two ends of the outer side of the threaded rod (903) are respectively fixedly connected with the inner sides of the two groups of connecting bearings (906), and one ends of the insides of the hydraulic cylinder body (901) and the pneumatic cylinder body (907), which are far away from each other, are respectively communicated with a group of interfaces of a first four-way valve (13) and a second four-way valve (14).

3. An isolator having a function of correcting a height difference according to claim 1, wherein: workstation subassembly (1) is including fixed pipe (101), infrared laser lamp (102), lifter (103), bolt (104) and test table (105), fixed pipe (101) are installed to the one end that installation bin (7) top is close to isolation storehouse (4) one side, and the inside of fixed pipe (101) is provided with lifter (103), test table (105) are installed on the top of lifter (103), infrared laser lamp (102) are installed to the one end that test table (105) top is close to isolation storehouse (4), the top screw thread in the fixed pipe (101) outside is provided with bolt (104).

4. An isolator having a function of correcting a height difference according to claim 1, wherein: the four interfaces of the second four-way valve (14) are respectively communicated with the inner top of the isolation bin (4), the pressure interface of the gas pressure regulator (12), the output end of the air pressure cylinder (907) and the measuring end of the automatic standard pressure generator (8) through connecting pipes, and the four interfaces of the first four-way valve (13) are respectively communicated with the output end of the liquid piston type pressure gauge assembly (3), the air cavity end of the liquid pressure regulator (6), the output end of the hydraulic cylinder (901) and the inner bottom of the isolation bin (4) through oil path pipes.

5. An isolator having a function of correcting a height difference according to claim 1, wherein: a rotating shaft is arranged at the middle position of one side, far away from the installation pipe (5), of the installation bin (7), a first bevel gear (909) meshed with a second bevel gear (910) is installed on the outer side of the rotating shaft, and one end, far away from the installation pipe (5), of the rotating shaft extends to the outer side of the installation bin (7) and is provided with a hand wheel (11).

6. An isolator having a function of correcting a height difference according to claim 1, wherein: the automatic standard pressure generator (8) is characterized in that a horizontal regulator (10) is uniformly arranged at the bottom of the automatic standard pressure generator, and a work balance position indicator matched with the horizontal regulator (10) is arranged at one end, away from one side of the installation pipe (5), in the installation bin (7).

7. An isolator having a function of correcting a height difference according to claim 1, wherein: the structure of liquid pressure regulator (6) and gas pressure regulator (12) is the same with the structure that hydraulic cylinder body (901), piston (902) and threaded rod (903) are constituteed jointly, and the manual handle of liquid pressure regulator (6) and gas pressure regulator (12) all extends to the outside of installation storehouse (7) and installs the rotation handle.

8. An isolator having a function of correcting a height difference according to claim 1, wherein: an observation window is arranged on one surface of the isolation bin (4), first scale marks are arranged on the outer side of the observation window, and second scale marks matched with the infrared laser lamp (102) are arranged on the outer side of the isolation bin (4).

9. An isolator having a function of correcting a height difference according to claim 2, wherein: lubricating oil is arranged in the strip-shaped sliding groove (905), and threaded holes matched with threads on the outer side of the threaded rod (903) are formed in one ends, close to each other, of the hydraulic cylinder body (901) and the air cylinder body (907).

10. An isolator having a function of correcting a height difference according to claim 1, wherein: an oil injection valve is arranged at the top of the isolation bin (4), and an oil discharge valve is arranged at the bottom of one side of the isolation bin (4).

Technical Field

The invention relates to the technical field of gas-liquid isolators, in particular to an isolator with a height difference correcting function.

Background

Usually, a liquid piston type pressure gauge or a compensation type micro-pressure gauge is used as a standard device to detect (calibrate) a pressure instrument, when a detection medium of the standard device is liquid and a working medium of an object to be detected is gas, an oil-gas isolator needs to be connected between the standard device and the object to be detected, and a high-precision liquid level sensor is arranged in the isolator, so that the liquid level position can be accurately determined, and the height difference of the medium in the isolator can be conveniently corrected.

When the current detection device detects the pressure value of a product, part of special products directly contact with oil to influence the detection data of the product, so that the oil needs to be isolated by using a corresponding isolator, but the current device is not convenient for correcting and adjusting the height difference of gas and liquid in the isolator, thereby reducing the using effect of the detection device; when an operator manually corrects and adjusts the height difference of the gas and the liquid, the height of the liquid is often required to be adjusted, the gas pressure in the isolator is adjusted at the same time, and the adjustment speed is slow, so that the detection efficiency of the whole device on a product is influenced; meanwhile, the current partial pressure detection device often places a plurality of groups of mutually-matched components on the same horizontal table top to detect the accurate pressure value of the product, and the accuracy of detecting the pressure value of the product can not be guaranteed while the occupied space of the device is reduced.

Disclosure of Invention

The present invention is directed to an isolator having a function of correcting a height difference, so as to solve the above-mentioned problems associated with the related art.

In order to achieve the purpose, the invention provides the following technical scheme: an isolator with a function of correcting height difference comprises an installation bin, wherein an automatic standard pressure generator is installed at the bottom of the installation bin, a liquid piston type pressure gauge assembly is arranged at the middle position of the top of the installation bin, weight assemblies which are matched with each other are arranged on the outer side of the liquid piston type pressure gauge assembly, an installation pipe is installed at one side of one end of the top of the installation bin, a separation bin is installed at the top end of the installation pipe, a liquid level sensor is arranged at the inner top of the separation bin, a liquid pressure regulator is installed at one end, far away from one side of the installation pipe, of the top of the inner top of the installation bin, a gas pressure regulator is installed at the other end, far away from one side of the installation pipe, of the inner top of the installation bin, a first four-way valve is installed at one end, close to one side of the liquid pressure regulator, of the inner top of the installation bin, a second four-way valve is installed at one end, close to one side of the gas pressure regulator, one side of the bottom in the installation bin, which is far away from the installation pipe, is provided with an adjusting component communicated with the first four-way valve and the second four-way valve, and one end of the top of the installation bin, which is close to one side of the installation pipe, is provided with a workbench component.

Preferably, the adjusting assembly comprises a hydraulic cylinder body, a piston, a threaded rod, a fixed bearing, a bar-shaped chute, a connecting bearing, a pneumatic cylinder body, a rotating pipe, a first bevel gear, a second bevel gear and a limiting slide bar, the fixed bearings are symmetrically installed at the middle position of one side of the isolating bin far away from the bottom in the installation bin, the rotating pipe is installed on the inner sides of two groups of fixed bearings, the threaded rod is arranged on the inner side of the rotating pipe, the limiting slide bar is arranged on the inner side of the threaded rod, the bar-shaped chute matched with the limiting slide bar is arranged on the outer side of the threaded rod, the second bevel gear is installed on the outer side of the rotating pipe, the first bevel gear meshed with the second bevel gear is arranged at the middle position of one side of the isolating bin far away from the inside of the installation bin, the hydraulic cylinder body and the pneumatic cylinder body are respectively arranged at two ends of the outer side of the threaded rod in a threaded manner, and the bottom of the hydraulic cylinder body and the air pressure cylinder body is fixedly connected with the inner bottom of the mounting bin, the inside of the hydraulic cylinder body and the air pressure cylinder body is provided with pistons, the pistons are arranged in two groups, one ends of the pistons, which are close to each other, are symmetrically provided with connecting bearings, two ends of the outer side of the threaded rod are respectively fixedly connected with the inner sides of the two groups of connecting bearings, and one ends, which are far away from each other, of the hydraulic cylinder body and the air pressure cylinder body are respectively communicated with a group of interfaces of the first four-way valve and the second four-way valve.

Preferably, the workstation subassembly includes fixed pipe, infrared laser lamp, lifter, bolt and detects the platform, the one end that the installation storehouse top is close to separation storehouse one side is installed fixed pipe, and the inside of fixed pipe is provided with the lifter, the top of lifter is installed and is detected the platform, it installs the infrared laser lamp to detect the one end that the platform top is close to the separation storehouse, the top screw thread in the fixed outside of tubes is provided with the bolt.

Preferably, four interfaces of the second four-way valve are respectively communicated with the inner top of the isolation bin, a pressure interface of the gas pressure regulator, an output end of the air pressure cylinder body and a measuring end of the automatic standard pressure generator through connecting pipes, and four interfaces of the first four-way valve are respectively communicated with an output end of the liquid piston type pressure gauge assembly, an air cavity end of the liquid pressure regulator, an output end of the hydraulic cylinder body and the inner bottom of the isolation bin through oil path pipes.

Preferably, the middle position of the mounting bin, which is far away from one side of the mounting tube, is provided with a rotating shaft, a first bevel gear meshed with a second bevel gear is mounted on the outer side of the rotating shaft, and one end, which is far away from the mounting tube, of the rotating shaft extends to the outer side of the mounting bin and is provided with a hand wheel.

Preferably, the bottom of the automatic standard pressure generator is uniformly provided with a level regulator, and one end of the interior of the installation bin, which is far away from one side of the installation tube, is provided with a working balance position indicator which is matched with the level regulator.

Preferably, the structure of liquid pressure regulator and gas pressure regulator is the same with the structure that hydraulic cylinder body, piston and threaded rod constitute jointly, and the manual handle of liquid pressure regulator and gas pressure regulator all extends to the installation storehouse ground outside and installs the rotation handle.

Preferably, an observation window is arranged on one surface of the isolation bin, first scale marks are arranged on the outer side of the observation window, and second scale marks matched with the infrared laser lamp are arranged on the outer side of the isolation bin.

Preferably, the inside of bar spout is provided with lubricating oil, the one end that hydraulic cylinder body and pneumatic cylinder body are close to each other all is provided with the screw hole of mutually supporting with threaded rod outside screw thread.

Preferably, an oil injection valve is arranged at the top of the isolation bin, and an oil discharge valve is arranged at the bottom of one side of the isolation bin.

Compared with the prior art, the invention provides an isolator with a height difference correcting function, which has the following beneficial effects:

1. according to the invention, through the matching use of the weight component, the liquid piston type pressure gauge component, the isolation bin, the mounting pipe, the liquid pressure regulator, the mounting bin, the automatic standard pressure generator, the gas pressure regulator and the liquid level sensor, before an operator uses the detection device, the height of liquid in the isolation bin can be adjusted by using the liquid pressure regulator, the pressure of air in the isolation bin can be adjusted by using the gas pressure regulator, the gas and the liquid are isolated by using the isolation bin, and part of special products can be prevented from being directly contacted with oil, so that the detection precision of the detection device on the products is greatly ensured, which cannot be realized by the traditional isolator, and the use effect of the isolator is improved.

2. According to the invention, through the matching use of the adjusting component, the hand wheel, the first four-way valve and the second four-way valve, on the basis of freely adjusting the height difference of the gas and the liquid in the isolation bin, an operator can control two groups of pistons to move in the same direction in the hydraulic cylinder body and the air pressure cylinder body by directly rotating the hand wheel, so that the air pressure is reduced while the oil pressure in the isolation bin is increased, or the air pressure is increased while the oil pressure in the isolation bin is reduced, thereby quickly adjusting the height difference of the gas and the liquid in the isolation bin to a position close to a specified level, and then accurately adjusting the height difference of the gas and the liquid in the isolation bin to the position of the specified level by the matching of the liquid pressure regulator and the gas pressure regulator, thereby ensuring the accuracy of the device on product detection data.

3. According to the invention, by matching the workbench assembly, the automatic standard pressure generator and the gas-liquid height difference correcting structure, all the assemblies of the device are arranged inside and at the bottom of the installation bin, so that the space occupied by the device is reduced, the height of the detection platform can be quickly adjusted, the working position of the automatic standard pressure generator, the working position of the liquid piston type pressure gauge assembly and an oil-gas interface inside the isolation bin are always kept at the same reference horizontal position, and the pressure value detection accuracy of the detection device on a product is ensured.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is a rear view of the present invention;

FIG. 4 is a rear cross-sectional view of the present invention;

FIG. 5 is a top view of the present invention;

FIG. 6 is a schematic perspective view of an isolation silo of the present invention;

FIG. 7 is an enlarged view taken at A of FIG. 2 in accordance with the present invention;

fig. 8 is an enlarged view of fig. 2 at B.

In the figure: 1. a table assembly; 101. a fixed tube; 102. an infrared laser lamp; 103. a lifting rod; 104. a bolt; 105. a detection table; 2. a weight component; 3. a liquid piston manometer assembly; 4. an isolation bin; 5. installing a pipe; 6. a liquid pressure regulator; 7. installing a bin; 8. an automatic standard pressure generator; 9. an adjustment assembly; 901. a hydraulic cylinder block; 902. a piston; 903. a threaded rod; 904. fixing the bearing; 905. a strip-shaped chute; 906. connecting a bearing; 907. a pneumatic cylinder; 908. rotating the tube; 909. a first bevel gear; 910. a second bevel gear; 911. a limiting slide bar; 10. a level adjuster; 11. a hand wheel; 12. a gas pressure regulator; 13. a first four-way valve; 14. a second four-way valve; 15. a liquid level sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: an isolator with a function of correcting height difference comprises an installation bin 7, wherein an automatic standard pressure generator 8 is installed at the bottom of the installation bin 7, a liquid piston type pressure gauge assembly 3 is arranged in the middle of the top of the installation bin 7, weight assemblies 2 which are matched with each other are arranged on the outer side of the liquid piston type pressure gauge assembly 3, an installation pipe 5 is installed on one side of one end of the top of the installation bin 7, an isolation bin 4 is installed at the top end of the installation pipe 5, a liquid level sensor 15 is arranged on the inner top of the isolation bin 4, a liquid pressure regulator 6 is installed on one end, far away from the installation pipe 5, of the top of the installation bin 7, a gas pressure regulator 12 is installed on the other end, far away from the installation pipe 5, of the inner top of the installation bin 7, a first four-way valve 13 is installed on one end, close to the liquid pressure regulator 6, of the inner top of the installation bin 7, a second four-way valve 14 is installed on one end, close to the gas pressure regulator 12, one side of the bottom in the installation bin 7, which is far away from the installation pipe 5, is provided with an adjusting component 9 communicated with a first four-way valve 13 and a second four-way valve 14, and one end of the top of the installation bin 7, which is close to one side of the installation pipe 5, is provided with a workbench component 1.

Further, the adjusting assembly 9 comprises a hydraulic cylinder 901, a piston 902, a threaded rod 903, fixed bearings 904, strip-shaped sliding chutes 905, a connecting bearing 906, an air cylinder 907, a rotating tube 908, a first bevel gear 909, a second bevel gear 910 and a limiting sliding strip 911, the fixed bearings 904 are symmetrically installed at the middle position of one side of the bottom in the installation bin 7 away from the isolation bin 4, the rotating tube 908 is installed at the inner sides of the two groups of fixed bearings 904 together, the threaded rod 903 is arranged at the inner side of the rotating tube 908, the limiting sliding strip 911 is arranged at the inner side of the threaded rod 903, the strip-shaped sliding chutes 905 matched with the limiting sliding strips 911 are arranged at the outer side of the threaded rod 903, the second bevel gear 910 is installed at the outer side of the rotating tube 908, the first bevel gear 909 meshed with the second bevel gear 910 is arranged at the middle position of one side of the installation bin 7 away from the isolation bin 4, the hydraulic cylinder 901 and the air cylinder 907 are respectively arranged at the two ends of the outer side of the threaded rod 903, the bottoms of the hydraulic cylinder body 901 and the pneumatic cylinder body 907 are fixedly connected with the inner bottom of the installation bin 7, pistons 902 are arranged inside the hydraulic cylinder body 901 and the pneumatic cylinder body 907, connecting bearings 906 are symmetrically installed at the ends, close to each other, of the two groups of pistons 902, the two ends of the outer side of the threaded rod 903 are fixedly connected with the inner sides of the two groups of connecting bearings 906 respectively, the ends, far away from each other, of the inside of the hydraulic cylinder body 901 and the inside of the pneumatic cylinder body 907 are communicated with a group of interfaces of the first four-way valve 13 and the second four-way valve 14 respectively, and therefore operators can conveniently and quickly adjust the height of the oil level and the air pressure inside the isolation bin 4.

Further, workstation subassembly 1 includes fixed pipe 101, infrared laser lamp 102, lifter 103, bolt 104 and detection platform 105, fixed pipe 101 is installed near the one end of isolation storehouse 4 one side at installation storehouse 7 top, and the inside of fixed pipe 101 is provided with lifter 103, detection platform 105 is installed on the top of lifter 103, it installs infrared laser lamp 102 to detect the one end that the platform 105 top is close to isolation storehouse 4, the top screw thread in the fixed pipe 101 outside is provided with bolt 104, be convenient for quick adjustment detects the height of platform 105, the operating position of automatic standard pressure generator 8 is kept throughout, the operating position of liquid piston pressure gauge subassembly 3 and the inside oil gas interface of isolation storehouse 4 are at same reference horizontal position, thereby the pressure value to the product has been guaranteed and has detected the accuracy.

Further, four interfaces of the second four-way valve 14 are respectively communicated with the inner top of the isolation bin 4, the pressure interface of the gas pressure regulator 12, the output end of the air cylinder 907 and the measuring end of the automatic standard pressure generator 8 through connecting pipes, four interfaces of the first four-way valve 13 are respectively communicated with the output end of the liquid piston type pressure gauge assembly 3, the air cavity end of the liquid pressure regulator 6, the output end of the hydraulic cylinder 901 and the inner bottom of the isolation bin 4 through oil path pipes, and an operator can conveniently adjust the height of the oil surface and the air pressure inside the isolation bin 4 by using the adjusting assembly 9, the liquid pressure regulator 6 and the gas pressure regulator 12.

Further, a rotating shaft is arranged in the middle position of one side of the mounting bin 7 far away from the mounting tube 5, a first bevel gear 909 meshed with a second bevel gear 910 is mounted on the outer side of the rotating shaft, and one end of the rotating shaft far away from the mounting tube 5 extends to the outer side of the mounting bin 7 and is provided with a hand wheel 11, so that an operator can conveniently rotate the rotating tube 908 manually.

Further, the bottom of the automatic standard pressure generator 8 is uniformly provided with a level regulator 10, and one end of the interior of the installation bin 7, which is far away from one side of the installation tube 5, is provided with a working balance position indicator which is matched with the level regulator 10, so that the whole device can be conveniently adjusted to be in a horizontal state.

Further, the structures of the liquid pressure regulator 6 and the gas pressure regulator 12 are the same as the structure formed by the hydraulic cylinder 901, the piston 902 and the threaded rod 903, and the manual control handles of the liquid pressure regulator 6 and the gas pressure regulator 12 extend to the outer side of the mounting bin 7 and are provided with the rotating handles, so that the liquid pressure regulator 6 and the gas pressure regulator 12 can be conveniently and manually controlled, and the purposes of adjusting the height of the oil surface inside the isolation bin 4 and adjusting the air pressure are achieved.

Further, one side of the isolation bin 4 is provided with an observation window, the outer side of the observation window is provided with a first scale mark, and the outer side of the isolation bin 4 is provided with a second scale mark matched with the infrared laser lamp 102, so that the working positions of the automatic standard pressure generator 8, the liquid piston type pressure gauge assembly 3 and the oil-gas interface inside the isolation bin 4 are ensured to be at the same reference horizontal position.

Further, lubricating oil is arranged inside the bar-shaped sliding groove 905, and the mutually close ends of the hydraulic cylinder body 901 and the hydraulic cylinder body 907 are provided with threaded holes matched with the outer threads of the threaded rod 903, so that the threaded rod 903 can move back and forth inside the hydraulic cylinder body 901 and the pneumatic cylinder body 907 conveniently.

Furthermore, an oil injection valve is arranged at the top of the isolation bin 4, and an oil discharge valve is arranged at the bottom of one side of the isolation bin 4, so that oil can be supplemented or discharged into the isolation bin 4 in time.

In embodiment 1, as shown in fig. 1 to 8, before a product is detected, the liquid level inside the isolation bin 4 is corrected, then a weight assembly 2 corresponding to a detected value is selected to be placed on the liquid piston type pressure gauge assembly 3, because the gravity of the weight assembly 2 can extrude oil in the oil line pipe to the inner bottom of the isolation bin 4, the oil level inside the isolation bin 4 rises, an operator manually rotates the hand wheel 11 rapidly and counterclockwise, the rotating pipe 908 drives the threaded rod 903 to rotate together, when part of the oil inside the isolation bin 4 is sucked into the hydraulic cylinder 901, the oil level inside the isolation bin 4 falls, and the air inside the pneumatic cylinder 907 is extruded into the isolation bin 4 by the piston 902, so that the air pressure inside the isolation bin 4 is increased, the oil level inside the isolation bin 4 rapidly falls to a designated horizontal position, and then the oil level and the air pressure inside the isolation bin 4 are lightly pressurized by the liquid pressure regulator 6 and the gas pressure regulator 12 The oil level in the isolation bin 4 can be accurately lowered to a specified horizontal position through fine adjustment, the air pressure in the isolation bin 4 is the same as the numerical value marked by the weight component 2, gas and liquid are isolated by using the isolation bin 4, and direct contact between part of special products and oil can be avoided, so that the detection precision of a detection device on the products is greatly guaranteed, the using effect of the isolator is also improved, the height of the oil level in the isolation bin 4 is fed back in real time by matching with the liquid level sensor 15 in the isolation bin 4, and the efficiency and precision of correcting the height difference of the gas and the liquid in the isolation bin 4 by an operator are improved.

Example 2, as shown in fig. 1 to 8, when the product is to be tested, the height difference of the gas and liquid inside the isolation chamber 4 is corrected according to the operation steps in example 1, then the bolt 104 is manually unscrewed, the infrared laser lamp 102 is turned on, and the height of the test platform 105 is adjusted until the laser emitted by the infrared laser lamp 102 is in the same plane with the oil surface inside the isolation chamber 4, then the bolt 104 is tightened again, the height of the test platform 105 is fixed, and then the automatic standard pressure generator 8 is used to test the product.

The working principle is as follows: before the device is used, a power supply is connected, when a product is detected, firstly, the height difference of gas and liquid in the isolation bin 4 is adjusted and corrected, a weight component 2 corresponding to a detected value is selected to be placed above a liquid piston type pressure gauge component 3, at the moment, the gravity of the weight component 2 can extrude oil in an oil line pipe to the inner bottom of the isolation bin 4, so that the oil surface in the isolation bin 4 is raised, then an operator manually and rapidly rotates a hand wheel 11 anticlockwise, the hand wheel 11 drives a rotating pipe 908 to rotate through the matching of a first bevel gear 909 and a second bevel gear 910, as a limiting sliding strip 911 is clamped in a strip-shaped sliding groove 905, the rotating pipe 908 drives a threaded rod 903 to rotate together, a hydraulic cylinder body 901 and an air pressure cylinder body 907 are fixedly installed at the inner bottom of an installation bin 7, at the moment, the threaded rod 903 is forced to gradually move towards one end of the air pressure cylinder body 907 in the rotating pipe 908 due to thread, the two groups of pistons 902 also gradually move towards one end of the pneumatic cylinder 907, part of oil in the isolation bin 4 is pumped into the hydraulic cylinder 901 in the process, so that the oil level in the isolation bin 4 is lowered, air in the pneumatic cylinder 907 is squeezed into the isolation bin 4 by the pistons 902, the air pressure in the isolation bin 4 is increased, the oil level in the isolation bin 4 is quickly lowered to the position near the middle of the isolation bin 4, then the oil level in the isolation bin 4 is slightly adjusted by the liquid pressure regulator 6 and the gas pressure regulator 12, so that the oil level in the isolation bin 4 can be accurately lowered to a specified horizontal position, the height of the oil level in the isolation bin 4 is fed back in real time by matching with the liquid level sensor 15 in the isolation bin 4, the efficiency of an operator for correcting the height difference of gas and liquid in the isolation bin 4 is improved, and then the automatic standard pressure generator 8 is controlled to detect the air pressure in the isolation bin 4 through the connecting pipes which are connected with each other, determining whether the pressure of the air in the isolation bin 4 is the same as the numerical value marked by the weight component 2, so that the accuracy of the numerical value after the product is detected by the device is ensured; when the product is detected, firstly, the height difference of the gas and the liquid in the isolation bin 4 is corrected according to the operation, then, the bolt 104 is manually unscrewed, the infrared laser lamp 102 is turned on, the height of the detection table 105 is adjusted until the laser emitted by the infrared laser lamp 102 and the oil surface in the isolation bin 4 are on the same plane, then, the bolt 104 is screwed, and finally, the automatic standard pressure generator 8 is used for detecting the product.

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.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

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.