Seal detection device for a product under test

Abstract

The utility model provides a kind of sealing detection device of product to be measured, including sealing detection assembly;Sealing detection assembly includes: positioning plate;Driving component, driving component is fixedly set in positioning plate;Tightening component, tightening component is fixedly connected with driving component;Tightening component rotates under the driving of driving component, and at least part of tightening component expands radially and is sealed abutment with product to be measured when rotating;Inflating component, inflating component has a sealed air passage, sealed air passage penetrates tightening component and is communicated with the inside of product to be measured.The utility model can realize the sealing detection of product to be measured.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts, and more specifically, to a sealing detection device for a product to be tested. Background Technology

[0002] Leak testing is widely used in products across industries such as automotive, aerospace, and construction, primarily to test the sealing requirements of products. Leak testing is indispensable in production and process control; even minor leaks can lead to serious consequences, especially in automotive components such as fuel systems and braking systems, where sealing testing is also linked to product safety and durability. Specifically, taking the actuators of an automotive braking system as an example, leak testing is required during the manufacturing process to ensure the actuator's safety and durability. However, there is currently no corresponding sealing testing device in the technology.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this utility model, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] In view of this, the present invention provides a sealing detection device for a product to be tested, so as to at least solve the technical problem that there is no sealing detection device for a product to be tested in the prior art.

[0005] This utility model provides a sealing detection device for a product under test. The sealing detection device includes a sealing detection assembly. The sealing detection assembly includes a positioning plate, a driving component, a tensioning component, and an inflation component. The driving component is fixedly mounted on the positioning plate. The tensioning component is fixedly connected to the driving component; the tensioning component rotates under the drive of the driving component, and at least a portion of the tensioning component expands radially outward during rotation, sealingly contacting the product under test. The inflation component has a sealing air passage that passes through the tensioning component and communicates with the interior of the product under test. This embodiment includes a sealing detection assembly. Based on the structural characteristics of the product under test, the sealing detection assembly is designed to include a positioning plate, a driving component, a tensioning component, and an inflation component. The positioning plate fixes the sealing detection assembly, the driving component drives the tensioning component, the tensioning component seals against the product under test, and the sealing air passage of the inflation component inflates the interior of the product under test, thereby achieving sealing detection of the product under test.

[0006] In some embodiments, the driving component includes: a drive-end synchronous pulley, an output-end synchronous pulley, a tension belt, and a synchronous toothed belt. The drive-end synchronous pulley and the output-end synchronous pulley are rotatably mounted on the positioning plate. The interconnected tension belt and synchronous toothed belt are sleeved on the drive-end synchronous pulley and the output-end synchronous pulley; driven by the tension belt and the synchronous toothed belt, the output-end synchronous pulley rotates based on the rotation of the drive-end synchronous pulley. In this embodiment, the transmission cooperation between the drive-end synchronous pulley, the output-end synchronous pulley, the tension belt, and the synchronous toothed belt of the driving component serves as the driving source to drive the rotation of the tensioning component to seal the product under test.

[0007] In some embodiments, the tensioning component includes: a rotating block, a tensioning block, a tensioning seal ring, and a gas distribution head. The rotating block is fixedly connected to the output end synchronous pulley and is at least partially disposed on the upper surface of the output end synchronous pulley; the rotating block rotates under the drive of the output end synchronous pulley. The tensioning block is disposed on the upper surface of the rotating block away from the output end synchronous pulley; the tensioning block rotates under the drive of the rotating block. The tensioning seal ring is disposed on the upper surface of the tensioning block away from the rotating block; the tensioning seal ring rotates under the drive of the rotating block. The output end synchronous pulley, rotating block, tensioning block, and tensioning seal ring are sleeved on the gas distribution head; during the upward rotation of the tensioning block, the tensioning seal ring expands radially outward under the compression of the tensioning block and the gas distribution head, and the side of the tensioning seal ring seals against the product under test. This embodiment, through the above-described arrangement of the rotating block, tensioning block, tensioning seal ring, and gas distribution head, enables the tensioning seal ring to tightly fit the product under test, effectively preventing gas leakage and improving the sealing effect of the sealing detection device. Furthermore, this embodiment allows for replacement and maintenance without the need for tools, significantly reducing maintenance costs and downtime, and improving the overall operating efficiency of the equipment.

[0008] In some embodiments, the rotating block and the tensioning seal ring are threadedly connected; the surface of the tensioning block near the tensioning seal ring has a protruding first annular boss, and the surface of the air distribution head near the tensioning seal ring has a protruding second annular boss, the first and second annular bosses abutting against at least a portion of the inner wall of the tensioning seal ring. This embodiment achieves axial movement of the rotating block relative to the tensioning seal ring through the threaded connection between the rotating block and the tensioning seal ring; and achieves outward expansion of the tensioning seal ring by the arrangement of the first and second annular bosses abutting against at least a portion of the inner wall of the tensioning seal ring, thereby sealing the product under test.

[0009] In some embodiments, the tensioning seal ring has two sealing surfaces; during the upward rotation of the tensioning block, the two sealing surfaces of the tensioning seal ring respectively seal and abut against the product under test. This embodiment, by providing the tensioning seal ring with two sealing surfaces, can further improve the sealing effect.

[0010] In some embodiments, the inflation component includes: an inflation positioning block, an inflation connector, and an air passage sealing ring. The inflation positioning block is fixedly mounted on a positioning plate; the inflation positioning block has a first air passage extending through it; the inflation head has a second air passage extending through it, and the first end of the first air passage is connected to the second air passage; the sealing air passage includes the first air passage and the second air passage. The inflation connector is sealed and fixedly connected to the second end of the first air passage; the inflation connector is used to inflate the sealing air passage. The air passage sealing ring is disposed at and seals the connection between the first and second air passages. This embodiment, through the above-described arrangement of the inflation positioning block, inflation connector, and air passage sealing ring, achieves the function of inflating the product under test to complete the sealing test simply and efficiently.

[0011] In some embodiments, the sealing detection device further includes a tension drive assembly, which includes: a mounting plate, a limiting block, a coupling base, a coupling, a connecting plate, a swing cylinder, a sensor bracket, and a proximity switch. The mounting plate is at least partially disposed above the synchronous pulley at the drive end. The limiting block is fixedly disposed on the mounting plate. The coupling base is fixedly disposed on the side of the limiting block away from the mounting plate. The coupling is partially disposed on the coupling base and fixedly connected to the synchronous pulley at the drive end. The connecting plate is connected to the coupling base and disposed on the side of the coupling. The swing cylinder is disposed on the side of the coupling away from the coupling base. The sensor bracket is disposed to the side and above the swing cylinder. The proximity switch is disposed in an arc-shaped hole on the upper surface of the sensor bracket. This embodiment, through the above-described arrangement of the tension drive assembly, can provide drive for the sealing detection assembly, thereby achieving the sealing effect on the product under test.

[0012] In some embodiments, the sealing detection device further includes a first moving assembly, which includes: a first moving plate, a first guide rail mounting plate, a first guide rail assembly, a floating positioning plate, a first motion cylinder, a buffer, a floating connector, a buffer positioning plate, and a one-way throttle valve. The surface of the first moving plate is parallel to a first direction; the mounting plate and the positioning plate are fixed to the top of the first moving plate. The surfaces of the first guide rail mounting plate and the first moving plate are parallel. The first guide rail assembly is disposed on the first guide rail mounting plate, and the first moving plate is slidably connected to the first guide rail assembly. The floating positioning plate is fixed to the first moving plate. The first motion cylinder and the buffer are respectively disposed on both sides of the floating positioning plate along the first direction; the floating connector of the first motion cylinder is connected to the floating positioning plate; the first motion cylinder is used to drive the floating connector to reciprocate along the first direction. The buffer positioning plate fixes the buffer to the first guide rail mounting plate. The one-way throttle valve is disposed on the first motion cylinder. Through the above-described arrangement of the first moving assembly, this embodiment can simply and efficiently realize the movement of the tensioning drive assembly and the sealing detection assembly in the first direction.

[0013] In some embodiments, the sealing detection device further includes a second moving component, which comprises a positioning base, a second guide rail assembly, and a second transfer cylinder. The surface of the positioning base is parallel to a second direction. The second guide rail assembly is disposed on the positioning base along the second direction; the first guide rail mounting plate is slidably connected to the positioning base via the second guide rail assembly. The second transfer cylinder is disposed on the positioning base; the second transfer cylinder is used to drive the first guide rail mounting plate to reciprocate along the second direction. This embodiment, through the above-described arrangement of the second moving component, can simply and efficiently realize the movement of the tensioning drive assembly and the sealing detection assembly in the second direction.

[0014] In some embodiments, the sealing detection device further includes a tray limiting block. The tray limiting block is disposed on the positioning base; the tray limiting block is used to limit the product under test. This embodiment, through the above-described arrangement of the tray limiting block, can achieve precise limitation of the position of the product under test, thereby achieving accurate coaxial alignment between the sealing detection component and the product under test.

[0015] Compared with the prior art, the present invention has at least the following technical effects: The sealing detection device for the product under test of this utility model includes a sealing detection component. Based on the structural characteristics of the product under test, the sealing detection component is designed to include a positioning plate, a driving component, a tensioning component, and an inflation component. The sealing detection component is fixed by the positioning plate, the tensioning component is driven by the driving component, the tensioning component seals against the product under test, and the sealing air passage of the inflation component inflates the inside of the product under test, thereby realizing the sealing detection of the product under test. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments conforming to the present invention and, together with the description, serve to explain the principles of the present invention. It is obvious that the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0017] Figure 1 This is an assembly diagram of a sealing detection device and a product to be tested provided in an embodiment of this utility model.

[0018] Figure 2 This is an assembly diagram of another sealing detection device and the product to be tested provided in this embodiment of the utility model.

[0019] Figure 3 yes Figure 1 A schematic diagram of the structure of the product to be tested.

[0020] Figure 4 yes Figure 1Another structural diagram of the product to be tested.

[0021] Figure 5 This is a cross-sectional structural diagram of a sealing detection component provided in an embodiment of this utility model.

[0022] Figure 6 This is a three-dimensional structural diagram of a sealing detection component provided in an embodiment of this utility model.

[0023] Figure 7 This is a three-dimensional structural schematic diagram of another sealing detection component provided in an embodiment of this utility model.

[0024] Figure 8 This is a partial cross-sectional structural diagram of a sealing detection component provided in an embodiment of the present invention.

[0025] Figure 9 This is a partial cross-sectional structural diagram of another sealing detection component provided in this embodiment of the present invention.

[0026] Figure 10 This is a partial three-dimensional structural diagram of a sealing detection component provided in an embodiment of the present utility model.

[0027] Figure 11 This is a schematic diagram of the cross-sectional structure of a rotating block provided in an embodiment of this utility model.

[0028] Figure 12 This is a schematic diagram of the cross-sectional structure of a gas distribution head provided in an embodiment of this utility model.

[0029] Figure 13 yes Figure 11 Middle rotating block and Figure 12 A schematic diagram of the assembly structure of the gas distribution head.

[0030] Figure 14 This is a front view of a tensioning block provided in an embodiment of this utility model.

[0031] Figure 15 This is a front view of a tension sealing ring provided in an embodiment of this utility model.

[0032] Figure 16 This is a three-dimensional structural diagram of a sealing detection device provided in an embodiment of the present invention.

[0033] Figure 17 This is a three-dimensional structural schematic diagram of another sealing detection device provided in an embodiment of this utility model.

[0034] Figure 18 This is a three-dimensional structural schematic diagram of another sealing detection device provided in this utility model embodiment.

[0035] Figure 19 This is a three-dimensional structural schematic diagram of another sealing detection device provided in this utility model embodiment.

[0036] Figure label: Detailed Implementation

[0037] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0038] The use of terms such as "first," "second," and similar words in the specific description does not indicate any order, quantity, or importance, but is merely used to distinguish different components. Furthermore, in the description of this utility model, terms such as "upper," "lower," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0039] It should be noted that, unless otherwise specified, the embodiments of this utility model and the features in different embodiments can be combined with each other.

[0040] like Figures 1 to 5As shown, this utility model provides a sealing test device for a product under test. The sealing test device includes a sealing test assembly 100. The sealing test assembly 100 includes: a positioning plate 110, a driving component, a tensioning component, and an inflation component. The driving component is fixedly mounted on the positioning plate 110. The tensioning component is fixedly connected to the driving component; the tensioning component rotates under the drive of the driving component, and at least a portion of the tensioning component expands radially outward during rotation and seals against the product under test. The inflation component has a sealing air passage 141, which passes through the tensioning component and communicates with the interior of the product under test. Specifically, the product under test can be an actuator in an automotive braking system, the actuator including a product output end 601, and the tensioning component abuts against the product output end 601 of the actuator. The product under test can also include tires, pipes, etc., in industries such as automobiles, aviation, or construction; this utility model does not limit this. The sealing test assembly 100 of the sealing test device uses dry air as a medium for sealing testing, which can quickly and accurately detect the sealing performance of the product under test. This embodiment includes a sealing detection component 100. Based on the structural characteristics of the product under test, the sealing detection component 100 is designed to include a positioning plate 110, a driving component, a tensioning component, and an inflation component. The sealing detection component 100 is fixed by the positioning plate 110, the tensioning component is driven by the driving component, the tensioning component seals against the product under test, and the sealing air passage 141 of the inflation component inflates the inside of the product under test, thereby realizing the sealing detection of the product under test.

[0041] like Figures 5 to 7 As shown, in some embodiments, the driving component includes: a drive-end synchronous pulley 121, an output-end synchronous pulley 122, a tension belt 123, and a synchronous toothed belt 124. The drive-end synchronous pulley 121 and the output-end synchronous pulley 122 are rotatably mounted on the positioning plate 110. The interconnected tension belt 123 and synchronous toothed belt 124 are sleeved on the drive-end synchronous pulley 121 and the output-end synchronous pulley 122; driven by the tension belt 123 and the synchronous toothed belt 124, the output-end synchronous pulley 122 rotates based on the rotation of the drive-end synchronous pulley 121. Specifically, the drive-end synchronous pulley 121, the output-end synchronous pulley 122, the tension belt 123, and the synchronous toothed belt 124 can complete the transmission through gear meshing. In this embodiment, the transmission cooperation between the synchronous pulley 121 at the drive end, the synchronous pulley 122 at the output end, the tension belt 123, and the synchronous toothed belt 124 of the drive component serves as the drive source to drive the rotation of the tensioning component to seal the product under test.

[0042] like Figures 5 to 10As shown, in some embodiments, the tensioning component includes: a rotating block 131, a tensioning block 132, a tensioning sealing ring 133, and an air distribution head 134. The rotating block 131 is fixedly connected to the output end synchronous pulley 122 and is at least partially disposed on the upper surface of the output end synchronous pulley 122; the rotating block 131 rotates under the drive of the output end synchronous pulley 122. The tensioning block 132 is disposed on the upper surface of the rotating block 131 away from the output end synchronous pulley 122; the tensioning block 132 rotates under the drive of the rotating block 131. The tensioning sealing ring 133 is disposed on the upper surface of the tensioning block 132 away from the rotating block 131; the tensioning sealing ring 133 rotates under the drive of the rotating block 131. The output end synchronous pulley 122, rotating block 131, tensioning block 132, and tensioning sealing ring 133 are fitted onto the air distribution head 134. During the upward rotation of the tensioning block 132, the tensioning sealing ring 133 expands radially outward under the pressure of the tensioning block 132 and the air distribution head 134, and the side of the tensioning sealing ring 133 seals against the product under test. Specifically, the rotating block 131 and the output end synchronous pulley 122 can complete the transmission through gear meshing. The output end synchronous pulley 122, rotating block 131, tensioning block 132, and tensioning sealing ring 133 can all be annular. The tensioning sealing ring 133 can be made of a flexible material, such as rubber, and this invention does not limit this. The strength of the tensioning block 132 is greater than the strength of the tensioning sealing ring 133. During rotation, the tensioning block 132 gradually moves closer to the tensioning sealing ring 133 to compress it. In this embodiment, the aforementioned arrangement of the rotating block 131, tensioning block 132, tensioning sealing ring 133, and gas distribution head 134 ensures that the tensioning sealing ring 133 tightly conforms to the product under test, effectively preventing gas leakage and improving the sealing effect of the sealing detection device. Furthermore, this embodiment allows for replacement and maintenance without the need for tools, significantly reducing maintenance costs and downtime, and improving the overall operating efficiency of the equipment.

[0043] like Figures 11 to 14As shown, in some embodiments, the rotating block 131 and the tensioning seal ring 133 are threadedly connected; the tensioning block 132 has a protruding first annular boss 135 on its surface near the tensioning seal ring 133, and the air distribution head 134 has a protruding second annular boss 136 on its surface near the tensioning seal ring 133. The first annular boss 135 and the second annular boss 136 abut against at least a portion of the inner wall of the tensioning seal ring 133. Specifically, the internal thread structure of the rotating block 131 mates with the external thread section of the air distribution head 134, and the air distribution head 134 is fixed, thereby enabling the rotating block 131 to move axially along the air distribution head 134. The tensioning block 132 and the air distribution head 134 engage with the inner wall of the tensioning sealing ring 133 via the inclined surfaces of the first annular boss 135 and the second annular boss 136. During the process of the tensioning block 132 compressing the tensioning sealing ring 133, the upper and lower portions of the tensioning sealing ring 133 expand outward simultaneously, achieving a tight fit with the product under test (e.g., the inner circle of the product output end 601 of the actuator), thereby achieving a sealing effect. In this embodiment, the threaded connection between the rotating block 131 and the tensioning sealing ring 133 enables axial movement of the rotating block 131 relative to the tensioning sealing ring 133; and the arrangement of the first annular boss 135 and the second annular boss 136 abutting against at least a portion of the inner wall of the tensioning sealing ring 133 achieves the outward expansion of the tensioning sealing ring 133 to seal the product under test.

[0044] like Figure 15 As shown, in some embodiments, the tensioning seal ring 133 has two sealing surfaces 137; during the upward rotation of the tensioning block 132, the two sealing surfaces 137 of the tensioning seal ring 133 respectively seal and abut against the product under test. Specifically, due to the first annular boss 135 and the second annular boss 136 with inclined surfaces in the aforementioned embodiments, combined with the two sealing surfaces 137 of the tensioning seal ring 133, the first annular boss 135 and the second annular boss 136 can, during the abutment against the tensioning seal ring 133, ensure that the two sealing surfaces 137 are tightly fitted with the product under test (e.g., the inner circle of the product output end 601 of the actuator), thereby achieving a sealing effect. This embodiment, by providing the tensioning seal ring 133 with two sealing surfaces 137, can further improve the sealing effect.

[0045] like Figures 5 to 10As shown, in some embodiments, the inflation component includes: an air distribution positioning block 142, an air distribution connector 143, and an air passage sealing ring 144. The air distribution positioning block 142 is fixedly disposed on the positioning plate 110; the air distribution positioning block 142 has a first air passage extending through it; the air distribution head 134 has a second air passage extending through it, and the first end of the first air passage is connected to the second air passage; the sealing air passage 141 includes the first air passage and the second air passage. The air distribution connector 143 is sealed and fixedly connected to the second end of the first air passage; the air distribution connector 143 is used to inflate the sealing air passage 141. The air passage sealing ring 144 is disposed at and seals the connection between the first and second air passages. Specifically, the gas distribution positioning block 142 is used to fix the inflation component, and the first air passage of the gas distribution positioning block 142 and the second air passage of the gas distribution head 134 together form a sealed air passage 141. The air passage sealing ring 144 is used to prevent air leakage at the connection between the first and second air passages. The gas distribution connector 143 is used to inflate the product under test through the sealed air passage 141 to complete the sealing test. In this embodiment, through the above-described arrangement of the gas distribution positioning block 142, the gas distribution connector 143, and the air passage sealing ring 144, the function of inflating the product under test to complete the sealing test in a simple and efficient manner is achieved.

[0046] like Figures 1 to 2 , Figures 16 to 19 As shown, in some embodiments, the sealing detection device further includes a tension drive assembly 200, which includes: a mounting plate 201, a limiting block 202, a coupling base 203, a coupling 204, a connecting plate 205, a swing cylinder 206, a sensor bracket 207, and a proximity switch 208. The mounting plate 201 is at least partially disposed above the drive-end synchronous pulley 121. The limiting block 202 is fixedly disposed on the mounting plate 201. The coupling base 203 is fixedly disposed on the side of the limiting block 202 away from the mounting plate 201. The coupling 204 is partially disposed on the coupling base 203 and fixedly connected to the drive-end synchronous pulley 121. The connecting plate 205 is connected to the coupling base 203 and disposed on the side of the coupling 204. The swing cylinder 206 is disposed on the side of the coupling 204 away from the coupling base 203. The sensor bracket 207 is disposed to the side and above the swing cylinder 206. A proximity switch 208 is disposed within an arc-shaped hole on the upper surface of the sensor bracket 207. Specifically, the mounting plate 201, the limiting block 202, the coupling base 203, and the connecting plate 205 are used to mount the coupling 204; the sensor bracket 207 is used to mount the swing cylinder 206; the swing cylinder 206 is used to connect to the drive end synchronous pulley 121 via the coupling 204 to drive the drive end synchronous pulley 121; the proximity switch 208 is used to detect the rotation angle of the swing cylinder 206. In this embodiment, through the above-described arrangement of the tension drive assembly 200, a drive can be provided for the sealing detection assembly 100, thereby achieving the sealing effect on the product under test.

[0047] like Figures 1 to 2 , Figures 16 to 19 As shown, in some embodiments, the sealing detection device further includes a first moving assembly 300, which includes: a first moving plate 301, a first guide rail mounting plate 302, a first guide rail assembly 303, a floating positioning plate 304, a first motion cylinder 305, a buffer 306, a floating connector 307, a buffer positioning plate 308, and a one-way throttle valve 309. The surface of the first moving plate 301 is parallel to the first direction X; the mounting plate 201 and the positioning plate 110 are fixed to the top of the first moving plate 301. The surfaces of the first guide rail mounting plate 302 and the first moving plate 301 are parallel. The first guide rail assembly 303 is disposed on the first guide rail mounting plate 302, and the first moving plate 301 is slidably connected to the first guide rail assembly 303. The floating positioning plate 304 is fixed to the first moving plate 301. The first motion cylinder 305 and the buffer 306 are respectively disposed on both sides of the floating positioning plate 304 along the first direction X; the floating connector 307 of the first motion cylinder 305 is connected to the floating positioning plate 304; the first motion cylinder 305 is used to drive the floating connector 307 to reciprocate along the first direction X. The buffer positioning plate 308 fixes the buffer 306 to the first guide rail mounting plate 302. A one-way throttle valve 309 is disposed on the first motion cylinder 305. Specifically, the first moving plate 301, the first guide rail mounting plate 302, the first guide rail assembly 303, and the first motion cylinder 305 are used to realize the first moving assembly 300 driving the tensioning drive assembly 200 and the sealing detection assembly 100 to move in the first direction X. The floating positioning plate 304, the floating connector 307, and the buffer positioning plate 308 are used to provide buffering for the movement of the first motion cylinder 305 to avoid mechanical damage. The one-way throttle valve 309 is used to adjust the working state of the first motion cylinder 305. This embodiment, through the above-described configuration of the first moving component 300, enables simple and efficient movement of the tensioning drive component 200 and the sealing detection component 100 in the first direction X.

[0048] like Figures 1 to 2 , Figures 16 to 19As shown, in some embodiments, the sealing detection device further includes a second moving component 400, which includes a positioning base 401, a second guide rail assembly 402, and a second transfer cylinder 403. The surface of the positioning base 401 is parallel to the second direction Y. The second guide rail assembly 402 is disposed on the positioning base 401 along the second direction Y; the first guide rail mounting plate 302 is slidably connected to the positioning base 401 through the second guide rail assembly 402. The second transfer cylinder 403 is disposed on the positioning base 401; the second transfer cylinder 403 is used to drive the first guide rail mounting plate 302 to reciprocate along the second direction Y. Specifically, the positioning base 401 is used to support the entire sealing detection device and to mount the second guide rail assembly 402; the second guide rail assembly 402 and the second transfer cylinder 403 are used to drive the first moving component 300 to move along the second direction Y, thereby driving the tensioning drive assembly 200 and the sealing detection assembly 100 to move along the second direction Y. This embodiment, through the above-described configuration of the second moving component 400, enables simple and efficient movement of the tensioning drive component 200 and the sealing detection component 100 in the second direction Y.

[0049] like Figures 1 to 2 , Figures 16 to 18 As shown, in some embodiments, the sealing detection device further includes a tray limiting block 500. The tray limiting block 500 is disposed on the positioning base 401; the tray limiting block 500 is used to limit the product to be tested. In this embodiment, through the above-described arrangement of the tray limiting block 500, the position of the product to be tested can be precisely limited, so as to achieve accurate coaxial cooperation between the sealing detection component 100 and the product to be tested.

[0050] As can be seen from the above embodiments, the sealing detection device for the product under test provided by this utility model achieves at least the following beneficial effects: The sealing detection device for the product under test of this utility model includes a sealing detection component. Based on the structural characteristics of the product under test, the sealing detection component is designed to include a positioning plate, a driving component, a tensioning component, and an inflation component. The sealing detection component is fixed by the positioning plate, the tensioning component is driven by the driving component, the tensioning component seals against the product under test, and the sealing air passage of the inflation component inflates the inside of the product under test, thereby realizing the sealing detection of the product under test.

[0051] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of this utility model. It should not be construed that the specific implementation of this utility model is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this utility model, and all such modifications or substitutions should be considered within the protection scope of this utility model.

Claims

1. A sealing detection device for a product to be tested, characterized in that, The sealing detection device includes a sealing detection component, which includes: Positioning plate; A driving component, which is fixedly mounted on the positioning plate; A tensioning component is fixedly connected to the driving component; the tensioning component rotates under the drive of the driving component, and at least a portion of the tensioning component expands radially outward during rotation and seals against the product under test. An inflation component having a sealed air passage that extends through the tensioning component and communicates with the interior of the product under test.

2. The sealing detection device for the product under test according to claim 1, characterized in that, The driving component includes: A drive-end synchronous pulley and an output-end synchronous pulley are rotatably mounted on the positioning plate; A tension belt and a synchronous toothed belt are connected to each other and are fitted onto the drive end synchronous pulley and the output end synchronous pulley; under the drive of the tension belt and the synchronous toothed belt, the output end synchronous pulley rotates based on the rotation of the drive end synchronous pulley.

3. The sealing detection device for the product under test according to claim 2, characterized in that, The tensioning component includes: A rotating block is fixedly connected to the output end synchronous pulley and is at least partially disposed on the upper surface of the output end synchronous pulley; the rotating block rotates under the drive of the output end synchronous pulley. A tensioning block is disposed on the upper surface of the rotating block away from the output end synchronous pulley; the tensioning block rotates under the drive of the rotating block. A tension sealing ring is provided on the upper surface of the tensioning block away from the rotating block; the tension sealing ring rotates under the drive of the rotating block. The gas distribution head, the output end synchronous pulley, the rotating block, the tensioning block and the tensioning sealing ring are sleeved on the gas distribution head; during the upward rotation of the tensioning block, the tensioning sealing ring expands radially outward under the compression of the tensioning block and the gas distribution head, and the side of the tensioning sealing ring seals against the product to be tested.

4. The sealing detection device for the product under test according to claim 3, characterized in that, The rotating block and the tensioning seal ring are threaded together; the surface of the tensioning block near the tensioning seal ring has a first annular boss, and the surface of the air distribution head near the tensioning seal ring has a second annular boss, the first annular boss and the second annular boss abutting against at least a portion of the inner wall of the tensioning seal ring.

5. The sealing detection device for the product under test according to claim 3, characterized in that, The tensioning seal ring has two sealing surfaces; during the upward rotation of the tensioning block, the two sealing surfaces of the tensioning seal ring respectively seal and abut against the product under test.

6. The sealing detection device for the product under test according to claim 3, characterized in that, The inflatable component includes: A gas distribution positioning block is fixedly disposed on the positioning plate; the gas distribution positioning block has a first air passage passing through the gas distribution positioning block; the gas distribution head has a second air passage passing through the gas distribution head, and a first end of the first air passage and the second air passage are connected; the sealing air passage includes the first air passage and the second air passage. A gas distribution connector, which is sealed and fixedly connected to the second end of the first air passage; the gas distribution connector is used to pump air into the sealed air passage. An airway sealing ring is disposed at and seals the connection between the first airway and the second airway.

7. The sealing detection device for the product under test according to claim 2, characterized in that, The sealing detection device further includes a tensioning drive assembly, which includes: Mounting plate, which is at least partially disposed above the drive end synchronous pulley; A limiting block, wherein the limiting block is fixedly disposed on the mounting plate; A coupling base, which is fixedly disposed on the side of the limiting block away from the mounting plate; A coupling, wherein the coupling portion is disposed on the coupling base and is fixedly connected to the synchronous pulley at the drive end; A connecting plate, which is connected to the coupling base and disposed on the side of the coupling; A swing cylinder, wherein the swing cylinder is disposed on the side of the coupling away from the coupling base; A sensor bracket is disposed on the side and above the swing cylinder; A proximity switch is disposed in an arc-shaped hole on the upper surface of the sensor bracket.

8. The sealing detection device for the product under test according to claim 7, characterized in that, The sealing detection device further includes a first moving component, the first moving component comprising: A first movable plate, the surface of which is parallel to a first direction; the mounting plate and the positioning plate are fixed to the top of the first movable plate; The first guide rail mounting plate and the first movable plate have parallel surfaces. A first guide rail assembly is disposed on a first guide rail mounting plate, and a first movable plate is slidably connected to the first guide rail assembly. A floating positioning plate, wherein the floating positioning plate is fixed to the first movable plate; A first motion cylinder and a buffer are respectively disposed on both sides of the floating positioning plate along the first direction; the floating connector of the first motion cylinder is connected to the floating positioning plate; the first motion cylinder is used to drive the floating connector to reciprocate along the first direction. A buffer positioning plate, wherein the buffer positioning plate fixes the buffer to the first guide rail mounting plate; A one-way throttle valve is disposed in the first moving cylinder.

9. The sealing detection device for the product under test according to claim 8, characterized in that, The sealing detection device further includes a second moving component, the second moving component comprising: A positioning base, wherein the plate surface of the positioning base is parallel to the second direction; A second guide rail assembly is disposed on the positioning base along the second direction; the first guide rail mounting plate is slidably connected to the positioning base via the second guide rail assembly. The second transfer cylinder is disposed on the positioning base; the second transfer cylinder is used to drive the first guide rail mounting plate to reciprocate along the second direction.

10. The sealing detection device for the product under test according to claim 9, characterized in that, The sealing detection device further includes: A tray limiting block is disposed on the positioning base; the tray limiting block is used to limit the product to be tested.

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