Novel helium mass spectrum leak detection device

Abstract

The utility model relates to the field of detection devices, and discloses a novel helium mass spectrometer leak detection device which comprises a body, four fixing bolts are fixedly connected to the lower side in the body, a fixing strip is slidably connected between the exteriors of the two fixing bolts on the same side, and a mechanical pump is fixedly connected between the tops of the two fixing strips. A motor is fixedly connected to the left side of the mechanical pump, a threaded rod is fixedly connected to the output end of the motor, sliding blocks are in threaded connection to the left side and the right side of the threaded rod, connecting rods are rotatably connected to the front sides and the rear sides of the sliding blocks, inserting rods are rotatably connected to the outer sides of the connecting rods, and limiting plates are slidably connected to the outer portions of the inserting rods; a clamping assembly is installed on the top of the body. The motor drives the threaded rod, the threaded rod drives the sliding block, the sliding block drives the connecting rod, and the connecting rod drives the inserting rod to work, so that the mechanical pump can be quickly dismounted, time and labor are saved, the working efficiency is effectively improved, and the use of an auxiliary tool for dismounting is avoided.

Description

Technical Field

[0001] The utility model relates to the field of detection devices, in particular to a novel helium mass spectrometer leak detection device. Background Art

[0002] Helium mass spectrometry leak detection is a highly sensitive leak detection technology, which is often used to detect tiny gas leaks in sealed systems or containers. Its principle is based on the high diffusivity and excellent detection performance of helium at extremely low pressure. During the detection process, the system or container under test is filled with helium, and helium is added to its surrounding environment. Then, the helium concentration is detected by a mass spectrometer. When the helium concentration exceeds the background value, the location of the leak point can be determined.

[0003] This technology has extremely high sensitivity and accuracy, and can detect leak rates as small as hundreds of billionths of a centimeter per second. Helium mass spectrometry leak detection devices are widely used in aerospace, automotive industry, electronic manufacturing, medical equipment and other fields, providing an effective means to ensure the reliability and safety of sealing systems.

[0004] In a helium mass spectrometer leak detection device, the built-in mechanical pump needs to be maintained regularly. However, since the mechanical pump of the existing helium mass spectrometer leak detection device is directly fixed to the bottom of the device with screws and nuts, auxiliary tools must be used to disassemble it during the disassembly and maintenance process, resulting in high labor intensity and low work efficiency. Therefore, a new helium mass spectrometer leak detection device is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a novel helium mass spectrometer leak detection device, which aims to improve the problem of using screws and nuts to fix, and auxiliary tools must be used for disassembly and maintenance, resulting in high labor intensity and low work efficiency for disassembly and maintenance.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a novel helium mass spectrometer leak detection device, comprising a main body, four fixing bolts are fixedly connected to the lower side of the inside of the main body, a fixing bar is slidably connected between the outsides of two fixing bolts on the same side, a mechanical pump is fixedly connected between the tops of the two fixing bars, a motor is fixedly connected to the left side of the mechanical pump, a threaded rod is fixedly connected to the output end of the motor, sliders are threadedly connected to the left and right sides of the threaded rod, connecting rods are rotatably connected to the front and rear sides of the slider, an insertion rod is rotatably connected to the outside of the connecting rod, a limiting plate is slidably connected to the outside of the insertion rod, and a clamping assembly is installed on the top of the main body.

[0007] As a further description of the above technical solution:

[0008] The clamping assembly includes an electric push rod, the bottom end of which is fixedly connected to the top of the main body, the output end of the electric push rod is fixedly connected to a fixed rod, the left and right ends of the fixed rod are fixedly connected to sliding frames, the inside of the sliding frame is slidably connected to a sliding rod, the rear end of the sliding rod is fixedly connected to a lever, the lower side of the lever is rotatably connected to a support rod, a connecting tube is fixedly connected between adjacent sides of the two support rods, and the upper side of the lever is rotatably connected to a splint.

[0009] As a further description of the above technical solution:

[0010] The four corners of the bottom of the body are fixedly connected with wheels, and the top of the body is fixedly connected with an operating table.

[0011] As a further description of the above technical solution:

[0012] The outer portion of the threaded rod is rotatably connected between the inner portions of the two fixing bars, and the bottom portion of the limiting plate is fixedly connected to the outer sides of the fixing bars.

[0013] As a further description of the above technical solution:

[0014] The outer side of the insertion rod is inserted into the interior of the fixing bolt.

[0015] As a further description of the above technical solution:

[0016] The bottom of the fixing strip is in abutment with the lower side of the inner part of the main body.

[0017] As a further description of the above technical solution:

[0018] The mechanical pump is externally arranged inside the body.

[0019] As a further description of the above technical solution:

[0020] The bottom of the connecting pipe is fixedly connected to the top of the main body, and the bottom of the clamping plate is abutted against the top of the connecting pipe.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the main body, motor, threaded rod, slider, connecting rod, limit plate, fixing bolt, fixing bar, mechanical pump, wheel and operating table structure cooperate with each other to drive the insertion rod to work, so that the mechanical pump can be quickly disassembled, which saves time and effort, effectively improves work efficiency and avoids the use of auxiliary tools for disassembly.

[0023] 2. In the utility model, the clamping plate can be driven by the mutual cooperation of the electric push rod, the fixed rod, the sliding frame, the sliding rod, the lever, the supporting rod, the connecting pipe and the like, so as to solve the problem of quickly fixing the object to be detected and the connecting pipe and avoid the time-consuming and laborious phenomenon of using screws and nuts in the traditional way. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of a novel helium mass spectrometer leak detection device proposed by the utility model;

[0025] Figure 2 This is a structural schematic diagram of a threaded rod of a novel helium mass spectrometer leak detection device proposed by the utility model;

[0026] Figure 3 The present invention is a schematic structural diagram of a clamping plate of a novel helium mass spectrometer leak detection device proposed by the present invention.

[0027] Legend:

[0028] 1. Main body; 2. Motor; 3. Threaded rod; 4. Slider; 5. Connecting rod; 6. Insert rod; 7. Limit plate; 8. Fixing bolt; 9. Fixing strip; 10. Mechanical pump; 11. Electric push rod; 12. Fixing rod; 13. Sliding frame; 14. Sliding rod; 15. Lever; 16. Support rod; 17. Connecting pipe; 18. Clamp; 19. Wheel; 20. Operating table. DETAILED DESCRIPTION

[0029] 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.

[0030] Reference Figure 1 - Figure 3, an embodiment of the utility model: a novel helium mass spectrometer leak detection device, including a body 1, four fixing bolts 8 are fixedly connected to the lower side of the body 1, a fixing bar 9 is slidably connected between the outsides of the two fixing bolts 8 on the same side, a mechanical pump 10 is fixedly connected between the tops of the two fixing bars 9, a motor 2 is fixedly connected to the left side of the mechanical pump 10, a threaded rod 3 is fixedly connected to the output end of the motor 2, the left and right sides of the threaded rod 3 are threadedly connected to sliders 4, the front and rear sides of the slider 4 are rotatably connected to connecting rods 5, the outside of the connecting rod 5 is rotatably connected to the plug rod 6, the outside of the plug rod 6 is slidably connected to the limit plate 7, a clamping assembly is installed on the top of the body 1, wheels 19 are fixedly connected to the four corners of the bottom of the body 1, an operating table 20 is fixedly connected to the top of the body 1, the outside of the threaded rod 3 is rotatably connected between the insides of the two fixing bars 9, the bottom of the limit plate 7 is fixedly connected to the outside of the fixing bar 9, the outside of the plug rod 6 is inserted into the inside of the fixing bolt 8, the bottom of the fixing bar 9 is abutted against the lower side of the inside of the body 1, and the outside of the mechanical pump 10 is arranged inside the body 1.

[0031] Specifically, various detection-related equipment for helium mass spectrometry leak detection are installed inside the body 1. The fixing bolt 8 is fixed on the body 1 and cooperates with the plug rod 6 to facilitate the disassembly of the mechanical pump 10. The fixing bar 9 is used to raise the mechanical pump 10 to prevent its bottom from being damaged by wear. The motor 2 is used to realize the plug rod 6 being pulled out from the fixing bolt 8. The threaded rod 3 rotates inside the fixing bar 9. The thread of the threaded rod 3 is bidirectional. The front and rear sides thereof are both threadedly connected with sliders 4. When the threaded rod 3 is rotated, the sliders 4 will move in opposite directions. The two ends of the slider 4 are connected to the connecting rod 5, and the other end of the connecting rod 5 is connected to the plug rod 6. The plug rod 6 is an important part for fixing the entire mechanical pump 10. The limit plate 7 is used to limit the movement direction of the plug rod 6 so that it can only move forward and backward without moving around. A limit ring is fixed on the outside of the plug rod 6 to prevent the plug rod 6 from falling off from the limit plate 7. The mechanical pump 10 is firmly fixed in the body 1 through the cooperation of the fixing bolt 8 and the plug rod 6. The wheels 19 are used to facilitate the movement of the device, and the operating table 20 is used to control the operation of the device.

[0032] Reference Figure 1 - Figure 3 The clamping assembly includes an electric push rod 11, the bottom end of the electric push rod 11 is fixedly connected to the top of the body 1, the output end of the electric push rod 11 is fixedly connected to a fixed rod 12, the left and right ends of the fixed rod 12 are fixedly connected to a sliding frame 13, the sliding frame 13 is slidably connected to a sliding rod 14, the rear end of the sliding rod 14 is fixedly connected to a lever 15, the lower side of the lever 15 is rotatably connected to a support rod 16, a connecting tube 17 is fixedly connected between adjacent sides of the two support rods 16, the upper side of the lever 15 is rotatably connected to a clamping plate 18, the bottom of the connecting tube 17 is fixedly connected to the top of the body 1, and the bottom of the clamping plate 18 is abutted against the top of the connecting tube 17.

[0033] Specifically, the main body 1 is used to drive the clamping assembly to achieve clamping, the fixed rod 12 is used to drive the sliding frames 13 on both sides to move upward synchronously, the sliding frame 13 is used to drive the sliding rod 14 to move outward, the sliding rod 14 is used to make the top of the lever 15 move closer to the middle, the support rod 16 is a fulcrum of the lever 15, so that the upper and lower ends of the lever 15 move in opposite directions, the connecting pipe 17 is used to be connected to the entrance and exit of the object to be detected to achieve sealing, and cooperate with the mechanical pump 10 to achieve vacuum, and the splint 18 is used to clamp the object to be detected and press it tightly against the top of the connecting pipe 17.

[0034] Working principle: When using this device, first align the port of the object to be detected with the connecting tube 17, then control the electric push rod 11 to extend, the electric push rod 11 pushes the fixed rod 12 to move upward, the fixed rod 12 pushes the slide frames 13 on both sides, and the slide frames 13 push the slide rods 14 to both sides at the same time. Under the action of the support rod 16, the slide rod 14 allows the top of the lever 15 to move together to the middle, so that the clamping plate 18 clamps the object to be detected and presses it downward, and the object to be detected is firmly pressed against the top of the connecting tube 17, completely sealed, and then the instrument and mechanical pump 10 inside the main body 1 are controlled by the operating table 20 to start, the mechanical pump 10 extracts the air from the object to be detected to achieve vacuum, and then releases helium outside the object to be detected, and the instrument inside the main body 1 detects whether it is Whether there is leakage, the mass spectrometer leak detection device needs regular inspection and maintenance to ensure normal function. When the mechanical pump 10 needs to be maintained or repaired, due to the small internal space of the main body 1, it needs to be disassembled for inspection. The motor 2 is controlled to rotate by an external power supply. The motor 2 drives the threaded rod 3 to rotate, so that the sliders 4 on both sides move to both sides. When the slider 4 moves, the connecting rod 5 is pulled. Under the limit of the limit plate 7, the plug 6 is pulled out from the fixing bolt 8 to unlock, and then the mechanical pump 10 is lifted out for inspection. After the inspection is completed, the mechanical pump 10 is reinstalled, first align the hole on the fixing bar 9 with the fixing bolt 8 and insert it, and then control the motor 2 to reverse, so that the slider 4 moves to the middle, and the plug 6 is pushed out and reinserted into the fixing bolt 8 to lock it.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel helium mass spectrometer leak detection device, comprising a body (1), characterized in that: Four fixing bolts (8) are fixedly connected to the lower side of the body (1); a fixing bar (9) is slidably connected between the outsides of the two fixing bolts (8) on the same side; a mechanical pump (10) is fixedly connected between the tops of the two fixing bars (9); a motor (2) is fixedly connected to the left side of the mechanical pump (10); a threaded rod (3) is fixedly connected to the output end of the motor (2); a slider (4) is threadedly connected to the left and right sides of the threaded rod (3); a connecting rod (5) is rotatably connected to the front and rear sides of the slider (4); an insert rod (6) is rotatably connected to the outside of the connecting rod (5); a limit plate (7) is slidably connected to the outside of the insert rod (6); and a clamping assembly is installed on the top of the body (1).

2. A novel helium mass spectrometer leak detection device according to claim 1, characterized in that: The clamping assembly comprises an electric push rod (11), the bottom end of the electric push rod (11) is fixedly connected to the top of the body (1), the output end of the electric push rod (11) is fixedly connected to a fixed rod (12), the left and right ends of the fixed rod (12) are fixedly connected to a sliding frame (13), the interior of the sliding frame (13) is slidably connected to a sliding rod (14), the rear end of the sliding rod (14) is fixedly connected to a lever (15), the lower side of the lever (15) is rotatably connected to a support rod (16), a connecting pipe (17) is fixedly connected between adjacent sides of the two support rods (16), and the upper side of the lever (15) is rotatably connected to a clamping plate (18).

3. A novel helium mass spectrometer leak detection device according to claim 1, characterized in that: The four corners of the bottom of the body (1) are fixedly connected to wheels (19), and the top of the body (1) is fixedly connected to an operating table (20).

4. A novel helium mass spectrometer leak detection device according to claim 1, characterized in that: The outside of the threaded rod (3) is rotatably connected between the insides of the two fixing bars (9), and the bottom of the limiting plate (7) is fixedly connected to the outside of the fixing bars (9).

5. A novel helium mass spectrometer leak detection device according to claim 1, characterized in that: The outer side of the insertion rod (6) is inserted into the interior of the fixing bolt (8).

6. A novel helium mass spectrometer leak detection device according to claim 1, characterized in that: The bottom of the fixing strip (9) is in abutment with the lower side of the interior of the body (1).

7. A novel helium mass spectrometer leak detection device according to claim 1, characterized in that: The mechanical pump (10) is externally arranged inside the body (1).

8. A novel helium mass spectrometer leak detection device according to claim 2, characterized in that: The bottom of the connecting pipe (17) is fixedly connected to the top of the main body (1), and the bottom of the clamping plate (18) is in abutment with the top of the connecting pipe (17).

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