Helium detection vacuum box structure with high adaptability

Abstract

The utility model discloses a helium detection vacuum box structure with high adaptability, and relates to the technical field of valve body detection, the helium detection vacuum box structure comprises a vacuum box body, a clamp arranged in the vacuum box body and a helium filling pipeline arranged on the vacuum box body in a dynamic sealing manner, one end part of the helium filling pipeline can extend into the vacuum box body and can be separated or separated towards the clamp, and the other end part of the helium filling pipeline is connected with the clamp. And when the valve body is longitudinally limited by the clamp, the helium filling pipeline performs close action towards the clamp until one end part of the helium filling pipeline is hermetically jointed with the opening in the valve body. The device has high adaptability, can realize effective sealing and helium detection of valve bodies with the same volume and different specifications through the design of the clamp and the dynamic sealing helium filling pipeline, and is also provided with one-to-many and many-to-many layouts according to detection requirements, thereby improving the detection efficiency and flexibility.

Description

Technical Field

[0001] This utility model relates to the field of valve body detection technology, specifically to a helium detection vacuum chamber structure with high applicability. Background Technology

[0002] After the valve body manufacturing process is completed, performing a sealing test is a necessary step. Modern valve bodies all contain an opening communicating with the internal chamber, and the commonly used testing method is helium gas detection. This method utilizes the light weight and small diameter of helium molecules; when helium is injected into the valve body through the opening, even a tiny sealing defect will cause helium to leak from the internal chamber. Dedicated helium detection equipment can then detect the presence of helium, thus determining that the valve body's sealing performance is poor and marking it as a defective product.

[0003] Through literature search, we found a patent document with authorization announcement number CN219996448U, which describes a vacuum chamber for battery helium detection. This vacuum chamber includes a cavity-shaped body with a buffer plate on the sidewall of the cavity, a positioning device on the body, and a lid detachably connected to the body. The cavity is used to hold the battery, and the lid is used to close or open the cavity. The buffer plate, made of elastic material, surrounds the battery, and the positioning device is used to fix the battery's position within the cavity. In use, the buffer plate on the cavity sidewall, due to its elastic material, reduces the gap between the battery and the cavity sidewall, thereby improving the battery's positioning accuracy within the cavity.

[0004] However, compared to regularly shaped batteries, valve bodies exhibit irregularities, and even valve bodies of the same shape may differ in type, specifically in the varying opening positions. If the aforementioned vacuum chamber is directly applied to valve body sealing testing, although the positioning device can locate the valve body, the diverse opening orientations of valve bodies of the same shape but different types make it difficult to align the helium filling nozzle at a single location with openings facing different directions for helium filling, thus limiting its application.

[0005] To address these issues, we propose a highly adaptable helium detection vacuum chamber structure. Utility Model Content

[0006] The purpose of this invention is to propose a highly applicable helium detection vacuum chamber structure to solve the problems in the prior art. This helium detection vacuum chamber structure has high applicability and flexibility. Through the design of clamps and movable sealed helium filling pipes, it can achieve flexible layouts of one-to-one or many-to-many according to different needs, and has high applicability.

[0007] To solve the above problems, this utility model provides the following technical solution:

[0008] A highly adaptable helium detection vacuum chamber structure includes a vacuum chamber body, a clamp disposed within the vacuum chamber body, and a helium filling pipe dynamically sealed on the vacuum chamber body. One end of the helium filling pipe can extend into the vacuum chamber body and can move away from or away from the clamp. When the valve body is longitudinally limited by the clamp, the helium filling pipe moves towards the clamp until one end of the helium filling pipe seals with the opening on the valve body. When the clamp is configured as a single set and the helium filling pipe is configured as multiple pipes, the single set of clamps and multiple helium filling pipes together form a one-to-many layout, and one of the multiple helium filling pipes can be used selectively. When both the clamps and the helium filling pipes are configured as multiple sets and correspond one-to-one, the two together form a multiple-to-multiple layout.

[0009] As a further embodiment of this utility model: a transfer frame is fixedly installed on the outside of the vacuum chamber, and a first drive source is fixedly installed on the transfer frame. The execution end of the first drive source is fixedly connected to one end of the helium filling pipe located outside the vacuum chamber, so as to realize the movement of the helium filling pipe.

[0010] As a further embodiment of this utility model: the clamp includes a lower positioning mold and an upper positioning mold, both located inside the vacuum chamber, with the lower positioning mold and the upper positioning mold located at the bottom and top of the vacuum chamber, respectively. The upper positioning mold can move toward or away from the lower positioning mold to form an adjustable clamping area between the upper positioning mold and the lower positioning mold.

[0011] As a further embodiment of this utility model: grooves are provided on the adjacent sides of the upper positioning mold and the lower positioning mold, so that when the upper positioning mold and the lower positioning mold are in the closed state, the grooves on the two together form a receiving cavity for accommodating the valve body.

[0012] As a further embodiment of this utility model: a second driving source is fixedly installed on the vacuum chamber, and the execution end of the second driving source penetrates into the interior of the vacuum chamber and is fixedly connected to the positioning upper mold.

[0013] As a further embodiment of this utility model, the vacuum chamber structure also includes a door for sealing the vacuum chamber and a two-dimensional motion mechanism for driving the door to open or seal the vacuum chamber.

[0014] As a further embodiment of this utility model: the two-dimensional motion mechanism includes a support bracket disposed on the side of the vacuum chamber, a guide rail arranged vertically fixedly disposed on the support bracket, a third drive source disposed on the guide rail, a slider slidably disposed on the guide rail, and the slider being fixedly connected to the execution end of the third drive source, a fourth drive source fixedly disposed on the slider, and the execution end of the fourth drive source moving horizontally, and the chamber door being disposed on the execution end of the fourth drive source.

[0015] As a further embodiment of this utility model: the vacuum chamber is provided with a connector that communicates with its interior.

[0016] As a further embodiment of this utility model: the vacuum chamber structure also includes a loosening simulation component disposed on the vacuum chamber body. The loosening simulation component includes a rod that is dynamically sealed on the vacuum chamber body and can move along its length. One end of the rod extending into the vacuum chamber body is provided with a disassembly and assembly tool so that when the valve body is confined within the vacuum chamber body, the disassembly and assembly tool can move toward the valve body until the disassembly and assembly tool is inserted and connected to the fastening bolt on the valve body.

[0017] As a further embodiment of this utility model: the loosening simulation component also includes a drive motor fixedly mounted on the vacuum chamber, and the output shaft of the drive motor extends into the vacuum chamber. The rod is inserted into the output shaft and can move along the length of the output shaft. An elastic element is provided on the output shaft and fixedly connected to the rod, so that the output shaft, the rod and the elastic element together form a telescopic structure with a reset function.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The structure of this helium detection vacuum chamber has high applicability. Through the design of the clamp and dynamic sealing helium filling pipeline, it can achieve effective sealing and helium detection for valve bodies of different specifications of the same volume. In addition, it can be set up with one-to-many and many-to-many layouts according to the detection needs, which improves detection efficiency and flexibility.

[0020] 2. By setting a transfer frame and a first drive source outside the vacuum chamber, reliable connection and flexible movement of the helium filling pipeline inside and outside the vacuum chamber are achieved, further improving the applicability and detection accuracy of the helium detection vacuum chamber structure;

[0021] 3. The fixture adopts a positioning lower mold and positioning upper mold design, which can adjust the size of the clamping area and is suitable for valve bodies of different sizes. This enhances the versatility and practicality of the helium detection vacuum chamber structure. In addition, the upper and lower layout design can avoid the space occupation problem caused by setting multiple helium filling pipes.

[0022] 4. The groove design on the upper and lower positioning molds allows the valve body to be clamped more securely, while improving the stability and accuracy of the valve body during the testing process;

[0023] 5. The introduction of the loosening simulation component enables the structure of the helium detection vacuum chamber to simulate the loosening of the valve body in actual use, improving the accuracy and reliability of the detection. At the same time, the design of the disassembly and assembly tools also facilitates the disassembly and assembly of the valve body.

[0024] 6. The loosening simulation component adopts a telescopic structure with a reset function, which not only improves the flexibility and stability of the disassembly and assembly tools, but also ensures the safety and accuracy of the valve body during the testing process. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ;

[0028] Figure 3 This is a front view structural diagram of the present invention;

[0029] Figure 4 This is a three-dimensional structural diagram of the present invention with the adapter frame and the first drive source removed;

[0030] Figure 5 This is a schematic diagram of the three-dimensional structure of the loosening simulation component and valve body in this utility model. Figure 1 ;

[0031] Figure 6 This is a schematic diagram of the three-dimensional structure of the loosening simulation component and valve body in this utility model. Figure 2 ;

[0032] Figure 7 This is a schematic diagram of the three-dimensional structure of the loosening simulation component in this utility model. Figure 1 ;

[0033] Figure 8 This is a schematic diagram of the three-dimensional structure of the loosening simulation component in this utility model. Figure 2 ;

[0034] Figure 9 This is a schematic diagram of the three-dimensional structure of the rod and gear in this utility model.

[0035] In the diagram: 1. Vacuum chamber; 2. Fixture; 201. Lower positioning mold; 202. Upper positioning mold; 203. Groove; 3. Helium filling pipe; 4. Adapter frame; 5. First drive source; 6. Second drive source; 7. Chamber door; 8. Support bracket; 9. Guide rail; 10. Third drive source; 11. Fourth drive source; 12. Connector; 13. Loosening simulation component; 1301. Rod; 1302. Disassembly and assembly tool; 1303. Drive motor; 1304. Output shaft; 1305. Gear; a. Valve body. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0037] Example 1:

[0038] like Figures 1-4 As shown, a highly adaptable helium detection vacuum chamber structure includes a vacuum chamber 1 and a door 7 for sealing the vacuum chamber 1. The vacuum chamber 1 is equipped with a clamp 2 for clamping and limiting the valve body a. A helium filling pipe 3 is dynamically sealed on the vacuum chamber 1. One end of the helium filling pipe 3 extends into the vacuum chamber 1 and can move along its length, thereby moving one end closer to or further away from the valve body a. The vacuum chamber 1 is also equipped with a connector 12 that communicates with its interior. Subsequent external negative pressure pipes can be directly connected to the connector 12 to achieve vacuuming treatment inside the vacuum chamber 1. After valve body a is clamped and positioned by clamp 2, the helium filling pipe 3 is driven to move closer to valve body a until one end of the helium filling pipe 3 is inserted into the opening of valve body a, achieving a sealed connection between the helium filling pipe 3 and the inner cavity of valve body a. Then, the vacuum chamber 1 is closed using the door 7, and a vacuum is drawn into the vacuum chamber 1. Then, helium gas at a certain pressure is filled into the inner cavity of valve body a using the helium filling pipe 3 and maintained for a period of time. Subsequently, a helium gas detection device is used to detect whether there is helium gas inside the vacuum chamber 1. If the presence of helium gas is detected inside the vacuum chamber 1, it indicates that valve body a is not in a good sealing state and is a defective product; if no helium gas is detected inside the vacuum chamber 1, it indicates that valve body a is in a good sealing state and is a qualified product.

[0039] This application, by setting up a vacuum chamber 1 and evacuating the vacuum chamber 1, allows the valve body a located on the fixture 2 to be in a negative pressure environment. When helium gas with a certain pressure is filled into the valve body a, a pressure difference will be generated between the inside of the valve body a and the vacuum chamber 1. If the valve body a has a sealing defect at this time, the helium gas will leak from the inner cavity of the valve body a into the vacuum chamber 1, thus achieving rapid and accurate detection.

[0040] In order to simultaneously test multiple types of valve bodies a, this application can set multiple sets of clamps 2 and helium filling pipes 3 and arrange them in a one-to-one correspondence. With the presence of multiple sets of clamps 2 and multiple sets of helium filling pipes 3, the two together form a multi-pair multi-mode layout. Then, during the test, multiple types of valve bodies a can be clamped and limited by multiple sets of clamps 2, and then the helium filling pipes 3 can be used to seal and connect with the valve bodies a on the corresponding clamps 2.

[0041] Alternatively, in order to test valve bodies a of different types with the same volume (specifically, each valve body a has the same volume but different opening orientations), this application sets the fixture 2 as a single set and the helium filling pipes 3 as multiple pipes. With the single set of fixtures 2 and multiple helium filling pipes 3, the two together form a one-to-many layout. Thus, during testing, multiple valve bodies a of the same volume but different types can be placed on the fixture 2 in sequence. According to the orientation of the opening on the valve body a, the helium filling pipe 3 with the same opening orientation as the valve body a is selected from the multiple helium filling pipes 3. The inner cavity of the valve body a is sealed by using the helium filling pipe 3 that is adapted to it. Figure 4 The diagram shows a setup with a set of clamps 2 and three helium-filling pipes 3, which can be matched with three types of valve bodies a for use.

[0042] To automate the movement of the helium filling pipe 3 towards or away from the valve body a, this application includes a connecting frame 4 fixedly mounted outside the vacuum chamber 1. A first drive source 5 is fixedly mounted on the connecting frame 4. The actuator of the first drive source 5 is fixedly connected to the end of the helium filling pipe 3 located outside the vacuum chamber 1. By utilizing the operation of the first drive source 5, the movement of the helium filling pipe 3 can be achieved. This movement can be controlled by... Figure 1 and Figure 2 To represent it.

[0043] Regarding the above-mentioned clamp 2, when there are multiple helium filling pipes 3 arranged along the same horizontal plane, since one end of the multiple helium filling pipes 3 extends into the vacuum chamber 1, it occupies a large horizontal space inside the vacuum chamber 1. Therefore, the clamp 2 of this application is preferably configured to longitudinally clamp and limit the valve body a.

[0044] like Figure 5 As shown, specifically, the clamp 2 includes a lower positioning mold 201 and an upper positioning mold 202, both located inside the vacuum chamber 1. The lower positioning mold 201 and the upper positioning mold 202 are located at the bottom and top of the vacuum chamber 1, respectively. A second drive source 6 is fixedly installed on the vacuum chamber 1, and the execution end of the second drive source 6 penetrates into the vacuum chamber 1 and is fixedly connected to the upper positioning mold 202. The upper positioning mold 202 can move towards or away from the lower positioning mold 201 to form an adjustable clamping area between the upper positioning mold 202 and the lower positioning mold 201. The clamping area is used to clamp and limit the valve body a. In order to adapt to the shape of valve body a, grooves 203 are provided on the adjacent sides of the upper positioning mold 202 and the lower positioning mold 201, so that when the upper positioning mold 202 and the lower positioning mold 201 are in the closed state, the grooves 203 on the two together form a receiving cavity for accommodating valve body a. The receiving cavity is used to stably limit the valve body a. The receiving cavity can be set to the corresponding type according to the shape of valve body a.

[0045] like Figures 1-3As shown, under normal circumstances, the door 7 is installed using a hinged installation method. This installation method requires the placement location to provide the space needed for the door 7 to rotate, resulting in a large overall volume of the door 7 and the vacuum chamber 1. To solve the inconvenience caused by the above installation method, this application also includes a two-dimensional motion mechanism for driving the door 7 to open or close the vacuum chamber 1. Specifically, the two-dimensional motion mechanism includes a support bracket 8 located on the side of the vacuum chamber 1. A guide rail 9 arranged vertically is fixedly installed on the support bracket 8. A third drive source 10 is installed on the guide rail 9. A slider is slidably installed on the guide rail 9, and the slider is fixedly connected to the execution end of the third drive source 10. A fourth drive source 11 is fixedly installed on the slider, and the execution end of the fourth drive source 11 moves horizontally. The door 7 is located on the execution end of the fourth drive source 11.

[0046] exist Figure 1 In the indicated state, the vacuum chamber 1 is open. When it is necessary to seal the vacuum chamber 1, the third drive source 10 can be used to drive the slider and the fourth drive source 11 to rise until the door 7 rises to the designated position with the vacuum chamber 1. Then, the fourth drive source 11 can be used to drive the door 7 to move towards the vacuum chamber 1 until the door 7 completely seals the vacuum chamber 1, achieving a sealed state for the vacuum chamber 1. This application, relying on a two-dimensional motion mechanism, can not only realize the opening or sealing of the vacuum chamber 1 by the door 7, but also requires less horizontal space for the door 7 to move.

[0047] It should be noted that the first drive source 5, the second drive source 6, the third drive source 10 and the fourth drive source 11 in this application are all conventional technical settings in the prior art. For example, all four can be cylinders, hydraulic cylinders or telescopic rods, etc.

[0048] Example 2:

[0049] like Figures 5-9As shown, based on the requirement that valve body a must maintain a good sealing state even when encountering adverse conditions such as loosening of fastening bolts during long-term use, this application further provides a loosening simulation component 13 on the basis of embodiment one. The loosening simulation component 13 is disposed inside the vacuum chamber 1. Specifically, the loosening simulation component 13 includes a rod 1301 dynamically sealed on the vacuum chamber 1, and the rod 1301 can move along its length direction. One end of the rod 1301 extending into the vacuum chamber 1 is provided with a disassembly and assembly tool 1302. When valve body a is confined to clamp 2 inside vacuum chamber 1, rod 1301 can be driven to move toward valve body a until disassembly tool 1302 is inserted and connected to fastening bolt on valve body a. Subsequently, rod 1301 and disassembly tool 1302 are driven to rotate at a certain angle, which can loosen the fastening bolt by the corresponding angle. By changing the rotation angle of rod 1301 and disassembly tool 1302 each time, the loosening situation of fastening bolt at different angles can be simulated. Subsequently, by helium filling test, the sealing condition of the inner cavity of valve body a under each simulated state can be obtained.

[0050] like Figures 6-8 As shown, it should be noted that the installation of the rod 1301 on the vacuum chamber 1 can take many forms; for example, it can be installed with... Figure 4 The installation of the helium filling pipe 3 shown is consistent with that of the vacuum chamber 1. Preferably, this application proposes the following installation method: a drive motor 1303 is fixedly installed outside the vacuum chamber 1, the output shaft 1304 of the drive motor 1303 extends into the interior of the vacuum chamber 1, the rod 1301 is slidably installed on the output shaft 1304 and moves along the axial direction of the output shaft 1304, and an elastic element is also provided between the output shaft 1304 and the rod 1301 (not shown in the figure because the elastic element is located in the hollow cavity on the output shaft 1304). With the presence of the elastic element, the output shaft 1304, the rod 1301 and the elastic element constitute a telescopic structure with a reset function. That is, when the rod 1301 retracts along the axial direction of the output shaft 1304, the elastic element is compressed, and subsequently, the elastic element can reset the rod 1301 under its elastic action.

[0051] like Figure 5 As shown, based on the above-mentioned design of the rod 1301 installation method, when the initial sealing test of valve body a is completed and subsequent loosening simulation test is performed, the rod 1301 can be retracted along the axial direction of the output shaft 1304 first. Figure 5In the diagram, the rod 1301 and the disassembly / assembly tool 1302 move to the left, away from the clamp 2. At this point, the elastic element is compressed, allowing the valve body a to be tested to be placed on the clamp 2. Then, the restriction on the rod 1301 is released. Under the elastic action of the elastic element, the disassembly / assembly tool 1302 on the rod 1301 can be inserted into the fastening bolt on the valve body a. Subsequently, starting the drive motor 1303 will drive its output shaft 1304 to rotate the fastening bolt by a certain angle for subsequent sealing tests. During the axial movement of the disassembly / assembly tool 1302 and the insertion of the fastening bolt, if there is a certain installation deviation between the disassembly / assembly tool 1302 and the fastening bolt, simply rotating the output shaft 1304 manually will rotate the disassembly / assembly tool 1302 until it can be properly inserted into the fastening bolt, thus achieving the insertion connection between the disassembly / assembly tool 1302 and the fastening bolt.

[0052] For example Figures 5-9 As shown, during multiple loosening simulations of the fastening bolts on valve body a, to ensure the operator knows the angle of rotation each time, this application has a gear 1305 fixedly installed on the outside of the rod 1301. The gear 1305 is coaxially arranged with the output shaft 1304. By calculating the number of teeth on the gear 1305, the angle represented by rotating a single tooth can be determined. Subsequently, the operator can rotate the corresponding number of teeth to determine the angle of rotation, which is convenient to use. Of course, the operator can replace the gear 1305 with other components that indicate angles; this application is not limited to the use of such components.

[0053] like Figure 9 As shown, it should be noted that the rod 1301 is axially slidably mounted on the output shaft 1304. To ensure that only axial movement occurs between the rod 1301 and the output shaft 1304, the rod 1301 is designed to be non-cylindrical. For example, the rod 1301 can be designed as a rectangular strip, with one rectangular end of the rod 1301 slidably mounted on the output shaft 1304. The disassembly / reassembly tool 1302 is detachably mounted on the other rectangular end of the rod 1301. Depending on the type of fastening bolts on valve body a, the disassembly / reassembly tool 1302 is adapted to the type of fastening bolts. Depending on the type of fastening bolts, the disassembly / reassembly tool 1302 can be set as an Allen wrench, a Phillips head wrench, or a socket wrench, etc.

[0054] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A highly adaptable helium detection vacuum chamber structure, characterized in that, The system includes a vacuum chamber (1), a clamp (2) located inside the vacuum chamber (1), and a helium-filling pipe (3) with a dynamic seal located on the vacuum chamber (1). One end of the helium-filling pipe (3) can extend into the vacuum chamber (1) and move away from or away from the clamp (2). When the valve body (a) is longitudinally limited by the clamp (2), the helium-filling pipe (3) moves closer to the clamp (2) until one end of the helium-filling pipe (3) seals and engages with the opening on the valve body (a). When the clamp (2) is set as a single set and the helium-filling pipe (3) is set as multiple pipes, the single set of clamps (2) and the multiple helium-filling pipes (3) together form a one-to-many layout, and one of the multiple helium-filling pipes (3) can be used. When both the clamps (2) and the helium-filling pipes (3) are set as multiple sets and correspond one-to-one, the two together form a multiple-to-many layout.

2. The highly adaptable helium detection vacuum chamber structure according to claim 1, characterized in that, A transfer frame (4) is fixedly installed on the outside of the vacuum chamber (1). A first drive source (5) is fixedly installed on the transfer frame (4). The execution end of the first drive source (5) is fixedly connected to one end of the helium filling pipe (3) located outside the vacuum chamber (1) to realize the movement of the helium filling pipe (3).

3. A highly adaptable helium detection vacuum chamber structure according to claim 1 or 2, characterized in that, The clamp (2) includes a lower positioning mold (201) and an upper positioning mold (202) both located inside the vacuum chamber (1). The lower positioning mold (201) and the upper positioning mold (202) are located at the bottom and top of the vacuum chamber (1), respectively. The upper positioning mold (202) can move toward or away from the lower positioning mold (201) to form an adjustable clamping area between the upper positioning mold (202) and the lower positioning mold (201).

4. The highly adaptable helium detection vacuum chamber structure according to claim 3, characterized in that, The upper positioning mold (202) and the lower positioning mold (201) are provided with grooves (203) on their adjacent sides, so that when the upper positioning mold (202) and the lower positioning mold (201) are in the closed state, the grooves (203) on the two molds together form a receiving cavity for accommodating the valve body (a).

5. The structure of a helium detection vacuum chamber with high applicability according to claim 4, characterized in that, A second drive source (6) is fixedly installed on the vacuum chamber (1), and the execution end of the second drive source (6) penetrates into the vacuum chamber (1) and is fixedly connected to the positioning upper mold (202).

6. A highly adaptable helium detection vacuum chamber structure according to claim 1 or 2, characterized in that, The vacuum chamber structure also includes a door (7) for sealing the vacuum chamber (1) and a two-dimensional motion mechanism for driving the door (7) to open or seal the vacuum chamber (1).

7. The structure of a helium detection vacuum chamber with high applicability according to claim 6, characterized in that, The two-dimensional motion mechanism includes a support bracket (8) disposed on the side of the vacuum chamber (1). A guide rail (9) arranged vertically is fixedly disposed on the support bracket (8). A third drive source (10) is disposed on the guide rail (9). A slider is slidably disposed on the guide rail (9) and is fixedly connected to the execution end of the third drive source (10). A fourth drive source (11) is fixedly disposed on the slider and the execution end of the fourth drive source (11) moves horizontally. The chamber door (7) is disposed on the execution end of the fourth drive source (11).

8. The structure of a helium detection vacuum chamber with high applicability according to claim 1, characterized in that, The vacuum chamber (1) is provided with a connector (12) that communicates with its interior.

9. A highly adaptable helium detection vacuum chamber structure according to claim 1 or 2, characterized in that, The vacuum chamber structure also includes a loosening simulation component (13) provided on the vacuum chamber body (1). The loosening simulation component (13) includes a rod (1301) dynamically sealed on the vacuum chamber body (1) and the rod (1301) can move along its length. One end of the rod (1301) extending into the vacuum chamber body (1) is provided with a disassembly tool (1302) so that when the valve body (a) is confined in the vacuum chamber body (1), the disassembly tool (1302) can move toward the valve body (a) until the disassembly tool (1302) is inserted and connected to the fastening bolt on the valve body (a).

10. A highly adaptable helium detection vacuum chamber structure according to claim 9, characterized in that, The loosening simulation component (13) also includes a drive motor (1303) fixedly mounted on the vacuum chamber (1), and the output shaft (1304) of the drive motor (1303) extends into the vacuum chamber (1). The rod (1301) is inserted on the output shaft (1304) and can move along the length of the output shaft (1304). The output shaft (1304) is provided with an elastic element fixedly connected to the rod (1301), so that the output shaft (1304), the rod (1301) and the elastic element together form a telescopic structure with a reset function.

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