A bottle cap air tightness detection device

Abstract

The application discloses a bottle cap airtightness detection device, relates to the field of bottle cap airtightness detection, and comprises a case, a supporting plate, a pressing assembly and a positioning assembly. One of the moving rods is moved, the sliding block is matched with the internal through groove of the transmission rod, the other two moving rods are driven to move radially to the air inlet synchronously, the moving rod drives the arc-shaped plates to extrude the side surface of the bottle cap through the action of the spring and the limiting rod, the three arc-shaped plates are synchronously retracted, the bottle cap is positioned above the air inlet, the misplacement of the bottle cap is avoided, and the airtightness detection is affected. The rotating rod is driven by the U-shaped frame to rotate to the vertical position, the connecting rod drives the lifting block to move downward, the pressing plate is further driven to press on the top of the bottle cap, the bottle cap is pressed, the rotating rod and the connecting rod form a toggle lever mechanism, when the rotating rod and the connecting rod are in the vertical state, that is, when the pressing plate presses the bottle cap, the mechanical locking effect can be realized, and the sealing effect of the bottle cap is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of bottle cap airtightness testing technology, and in particular to a bottle cap airtightness testing device. Background Technology

[0002] Bottle cap airtightness testing is a test method used to evaluate the sealing performance of bottle caps. Its purpose is to ensure that the bottle cap can effectively seal the bottle opening, prevent the contents from leaking or being contaminated by the outside world, and at the same time ensure the quality and safety of the contents inside the bottle. By ensuring the sealing performance of the bottle cap through airtightness testing, product leakage can be effectively prevented, ensuring product quality and consumer experience.

[0003] During the testing process, the bottle cap is usually installed on a simulated bottle opening, and its sealing performance is tested using various methods, such as pressure testing, vacuum testing, and helium leakage testing. Taking pressure testing as an example, during the test, the bottle cap is installed at the air inlet of the testing device, and then the bottle cap is pressed tightly by the pressure plate at the top. After pressing, the inside of the bottle cap is inflated and the air pressure is monitored in real time. The air tightness test result of the bottle cap is obtained based on the change in air pressure.

[0004] Existing airtightness testing devices typically place the bottle cap directly at the air inlet during installation. However, this manual placement may cause the bottle cap to become misaligned. Lacking a positioning component, misalignment can lead to internal gas leakage, affecting test results and making the device inconvenient to use. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a bottle cap airtightness detection device.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a bottle cap airtightness testing device, including a chassis, a support plate fixedly installed on the upper surface of the chassis, a pressing component provided on the upper surface of the support plate, and a positioning component provided on the upper surface of the chassis;

[0009] The positioning component includes a sealing seat disposed on the upper surface of the chassis, an air inlet disposed inside the sealing seat, three moving rods disposed on the upper surface of the chassis, a transmission rod disposed between adjacent moving rods, a sliding block disposed on the lower surface of the moving rods, and an arc-shaped plate disposed on the side of the moving rods near the air inlet.

[0010] The pressing assembly includes a U-shaped frame disposed above the support plate. A pin is inserted inside the U-shaped frame. A rotating rod is hinged inside the U-shaped frame via the pin. A connecting rod is hinged to the bottom end of the rotating rod. A lifting block is fixedly connected to the bottom end of the connecting rod. A pressure plate is fixedly connected to the bottom end of the lifting block.

[0011] In a preferred embodiment of the bottle cap airtightness testing device of this utility model, a cylinder is hinged to the upper surface of the support plate via a hinge seat, and the output end of the cylinder is hinged to one side of the U-shaped frame via the hinge seat.

[0012] In a preferred embodiment of the bottle cap airtightness testing device of this utility model, an air supply component is provided inside the casing, an air pressure detection module is provided inside the casing, a groove is provided on the upper surface of the casing, and the transmission rod is disposed inside the groove.

[0013] In a preferred embodiment of the bottle cap airtightness testing device of this utility model, the lower surfaces of the transmission rod and the moving rod are fixedly connected to limit sliders, the groove on the upper surface of the housing is provided with a limit slide groove that cooperates with the limit slider, three limit slide rails are fixedly connected inside the groove, and a push rod is fixedly connected to the outer surface of the moving rod on the outer side through a connecting rod.

[0014] In a preferred embodiment of the bottle cap airtightness testing device of this utility model, the transmission rod has a through groove that cooperates with the sliding block, the moving rod has an insert rod inserted inside, one end of the insert rod is fixedly connected to the outer surface of the arc plate, two connecting blocks are fixedly installed on the outer surface of the arc plate, a limit rod is fixedly connected to the side of the connecting block near the moving rod, a spring is fixedly connected between the connecting block and the moving rod, and the end of the limit rod away from the arc plate is inserted into the interior of the moving rod.

[0015] In a preferred embodiment of the bottle cap airtightness testing device of this utility model, both ends of the pin are hinged to auxiliary rods through the interior of the U-shaped frame, and the bottom end of the auxiliary rod is hinged to the upper surface of the support plate through a hinge seat.

[0016] As a preferred embodiment of the bottle cap airtightness testing device of this utility model, the top of the inner side of the support plate is fixedly connected to a limiting frame that cooperates with the lifting block, the limiting frame has a rectangular opening inside, and the lifting block has limiting protrusions on both sides that cooperate with the limiting opening.

[0017] In a preferred embodiment of the bottle cap airtightness testing device of this utility model, a limiting post is fixedly connected to the upper surface of the pressure plate, and a through hole is provided on the upper surface of the support plate to cooperate with the limiting post and the connecting rod.

[0018] (III) Beneficial Effects

[0019] This invention provides a bottle cap airtightness testing device. It has the following advantages:

[0020] 1. By moving one of the moving rods, and through the cooperation of the sliding block and the internal groove of the transmission rod, the other two moving rods are driven to move radially towards the air inlet simultaneously. The moving rods, through the action of the spring and the limiting rod, drive the arc plate to squeeze the side of the bottle cap. The three arc plates retract inward simultaneously, so that the bottle cap is positioned above the air inlet, avoiding misalignment of the bottle cap that would affect the airtightness test.

[0021] 2. The cylinder drives the rotating rod to rotate to a vertical position through the U-shaped frame, so that the connecting rod is driven by the rotating rod to move the lifting block downward, which in turn drives the pressure plate to press on the top of the bottle cap, thereby achieving the pressing of the bottle cap. The rotating rod and the connecting rod form an elbow mechanism, so that when the rotating rod and the connecting rod are in a vertical state, that is, when the pressure plate presses the bottle cap, a mechanical locking effect can be achieved to ensure the sealing effect of the bottle cap. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0024] Figure 2 This is an exploded structural diagram of the positioning component of this utility model.

[0025] Figure 3 This is a schematic diagram of the structure of the arc-shaped plate of this utility model.

[0026] Figure 4 This is a structural schematic diagram of the pressing component of this utility model.

[0027] Figure 5 This is a utility model Figure 4 A magnified structural diagram of A in the diagram.

[0028] In the diagram, 1. Chassis; 2. Support plate; 3. Positioning assembly; 301. Moving rod; 302. Arc plate; 303. Push rod; 304. Air inlet; 305. Sealing seat; 306. Limiting slide rail; 307. Limiting slider; 308. Transmission rod; 309. Sliding block; 310. Insert rod; 311. Limiting rod; 312. Connecting block; 313. Spring; 4. Pressing assembly; 401. Cylinder; 402. Limiting post; 403. Pressure plate; 404. Lifting block; 405. Limiting frame; 406. Connecting rod; 407. U-shaped frame; 408. Rotating rod; 409. Auxiliary rod; 410. Pin. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] Example 1

[0031] Reference Figure 1 , Figure 2 and Figure 3 This is the first embodiment of the present utility model. This embodiment provides a bottle cap airtightness detection device, including a housing 1, a support plate 2 fixedly installed on the upper surface of the housing 1, a pressing component 4 provided on the upper surface of the support plate 2, and a positioning component 3 provided on the upper surface of the housing 1.

[0032] The positioning component 3 includes a sealing seat 305 disposed on the upper surface of the chassis 1. An air inlet 304 is disposed inside the sealing seat 305. Three moving rods 301 are disposed on the upper surface of the chassis 1. A transmission rod 308 is disposed between adjacent moving rods 301. A sliding block 309 is disposed on the lower surface of the moving rod 301. An arc plate 302 is disposed on the side of the moving rod 301 near the air inlet 304.

[0033] Specifically, the internal parts of the casing 1 are equipped with an air supply component and an air pressure detection module. The upper surface of the casing 1 is provided with a groove, and the transmission rod 308 is located inside the groove. The thickness of the moving rod 301 is relatively thin, so that the pressing component 4 can press down on the top of the bottle cap normally without being affected by the positioning component 3.

[0034] Specifically, the lower surfaces of both the transmission rod 308 and the moving rod 301 are fixedly connected to limit sliders 307. The groove on the upper surface of the housing 1 is provided with a limit slide groove that cooperates with the limit slider 307. Three limit slide rails 306 are fixedly connected inside the groove. The outer surface of the moving rod 301 is fixedly connected to a push rod 303 via a connecting rod. The moving rod 301 achieves its radial movement limit through the cooperation of the limit slider 307 and the limit slide rails 306. The transmission rod 308 achieves its radial movement limit through the cooperation of the limit slider 307 and the limit slide groove. The push rod 303 drives the outer moving rod 301 to move.

[0035] Specifically, the transmission rod 308 has a through groove inside that mates with the sliding block 309. A rod 310 is inserted inside the moving rod 301. One end of the rod 310 is fixedly connected to the outer surface of the arc-shaped plate 302. Two connecting blocks 312 are fixedly installed on the outer surface of the arc-shaped plate 302. A limiting rod 311 is fixedly connected to the side of the connecting block 312 closest to the moving rod 301. A spring 313 is fixedly connected between the connecting block 312 and the moving rod 301. The end of the limiting rod 311 away from the arc-shaped plate 302 is inserted into the interior of the moving rod 301. Through the cooperation of the through groove and the sliding block 309, when one of the moving rods 301 moves, the sliding block 309 inside the through groove drives the transmission rod 308 to move. The transmission rod 308 then drives the adjacent moving rod 301 to move through the sliding block 309 on the other side, thus achieving synchronous radial movement of the three moving rods 301. The arc plate 302 moves radially through the limiting action of the insert rod 310 and the limiting rod 311, and the spring 313 keeps the arc plate 302 pressing against the side of the bottle cap.

[0036] Furthermore, one of the moving rods 301 is moved. While moving, the sliding block 309 cooperates with the internal groove of the transmission rod 308 to drive the other two moving rods 301 to move radially towards the air inlet 304. The moving rod 301, through the action of the spring 313 and the limiting rod 311, drives the arc plate 302 to abut against the side of the bottle cap, and continues to push the push rod 303. After the arc plate 302 squeezes the side of the bottle cap, it drives the spring 313 to compress. The three arc plates 302 retract inward simultaneously, positioning the bottle cap above the air inlet 304. The upper surface of the sealing seat 305 is provided with a soft sealing strip. After the bottle cap is pressed down by the pressing component 4, it can squeeze the soft sealing strip, thereby sealing the bottom of the bottle cap. The connection relationship, working principle and operation sequence between the air supply component and the air pressure detection module and other components are existing technologies and are common knowledge known to those skilled in the art, and will not be elaborated on here.

[0037] Example 2

[0038] Reference Figure 1 , Figure 4 and Figure 5 This is the second embodiment of the present invention. Based on the previous embodiment, the pressing component 4 includes a U-shaped frame 407 disposed above the support plate 2. A pin 410 is inserted inside the U-shaped frame 407. A rotating rod 408 is hinged inside the U-shaped frame 407 through the pin 410. A connecting rod 406 is hinged to the bottom end of the rotating rod 408. A lifting block 404 is fixedly connected to the bottom end of the connecting rod 406. A pressure plate 403 is fixedly connected to the bottom end of the lifting block 404.

[0039] Specifically, a cylinder 401 is hinged to the upper surface of the support plate 2 via a hinge seat. The output end of the cylinder 401 is hinged to one side of the U-shaped frame 407 via the hinge seat. The maximum stroke of the cylinder 401 can drive the rotating rod 408 and the connecting rod 406 to be in a vertical state.

[0040] Specifically, both ends of the pin 410 are hinged to auxiliary rods 409 through the inside of the U-shaped frame 407. The bottom end of the auxiliary rod 409 is hinged to the upper surface of the support plate 2 through a hinge seat. The auxiliary rod 409 supports the U-shaped frame 407, thereby preventing the output end of the cylinder 401 from falling directly onto the upper surface of the support plate 2.

[0041] Specifically, a limiting frame 405 that cooperates with the lifting block 404 is fixedly connected to the top of the inner side of the support plate 2. The limiting frame 405 has a rectangular opening inside. Both sides of the lifting block 404 are provided with limiting protrusions that cooperate with the limiting opening. By setting the limiting frame 405, the vertical lifting of the limiting lifting block 404 is realized, thereby keeping the connecting rod 406 in a vertical position.

[0042] Specifically, a limiting post 402 is fixedly connected to the upper surface of the pressure plate 403, and a through hole is opened on the upper surface of the support plate 2 to cooperate with the limiting post 402 and the connecting rod 406. The setting of the limiting post 402 assists in limiting the vertical movement of the pressure plate 403, while the top of the connecting rod 406 passes through the through hole and is hinged to the bottom end of the rotating rod 408.

[0043] Furthermore, the output end of the control cylinder 401 is directed outward, causing the cylinder 401 to move the U-shaped frame 407, which in turn drives the rotating rod 408 to rotate via the pin 410. During this process, the cylinder 401 rotates simultaneously, which provides auxiliary support through the rotation of the auxiliary rod 409. The U-shaped frame 407 drives the rotating rod 408 to rotate to a vertical position via the pin 410. At this time, the connecting rod 406 is driven by the rotating rod 408 to move the lifting block 404 downward, thereby causing the pressure plate 403 to press against the top of the bottle cap, thus achieving the goal of pressing the bottle cap.

[0044] Working principle: During the airtightness test of the bottle cap, the bottle cap is placed on the sealing seat 305. Then, the push rod 303 pushes one of the moving rods 301 to move. Simultaneously, the sliding block 309, through its engagement with the internal groove of the transmission rod 308, drives the other two moving rods 301 to move radially towards the air inlet 304. The moving rod 301, through the action of the spring 313 and the limiting rod 311, causes the arc-shaped plate 302 to abut against the side of the bottle cap. Continuing to push the push rod 303, the arc-shaped plate 302 presses against the side of the bottle cap, causing the spring 313 to compress. All three arc-shaped plates 302 retract synchronously, positioning the bottle cap above the air inlet 304. At this point, the output end of the control cylinder 401 outputs outwards, causing the cylinder 401 to... The U-shaped frame 407 moves, thereby driving the rotating rod 408 to rotate via the pin 410. During this process, the cylinder 401 rotates simultaneously, which provides auxiliary support through the rotation of the auxiliary rod 409. The U-shaped frame 407 drives the rotating rod 408 to rotate to a vertical position via the pin 410. At this time, the connecting rod 406 is driven by the rotating rod 408 to move the lifting block 404 downward, thereby driving the pressure plate 403 to press on the top of the bottle cap, thus achieving the pressing of the bottle cap. Then, air is supplied through the air supply component inside the housing 1, thereby inflating the bottle cap through the air inlet 304. The bottle cap is sealed under the action of the pressure plate 403 and the sealing seat 305. The pressure detection module monitors the air pressure inside the bottle cap in real time, thus achieving the airtightness detection of the bottle cap.

[0045] It should be noted that in this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A bottle cap airtightness testing device, comprising a housing, characterized in that: A support plate is fixedly installed on the upper surface of the chassis, a pressing component is provided on the upper surface of the support plate, and a positioning component is provided on the upper surface of the chassis. The positioning component includes a sealing seat disposed on the upper surface of the chassis, an air inlet disposed inside the sealing seat, three moving rods disposed on the upper surface of the chassis, a transmission rod disposed between adjacent moving rods, a sliding block disposed on the lower surface of the moving rods, and an arc-shaped plate disposed on the side of the moving rods near the air inlet. The pressing assembly includes a U-shaped frame disposed above the support plate. A pin is inserted inside the U-shaped frame. A rotating rod is hinged inside the U-shaped frame via the pin. A connecting rod is hinged to the bottom end of the rotating rod. A lifting block is fixedly connected to the bottom end of the connecting rod. A pressure plate is fixedly connected to the bottom end of the lifting block.

2. The bottle cap airtightness testing device according to claim 1, characterized in that: A cylinder is hinged to the upper surface of the support plate via a hinge seat, and the output end of the cylinder is hinged to one side of the U-shaped frame via the hinge seat.

3. The bottle cap airtightness testing device according to claim 2, characterized in that: The chassis is equipped with an air supply component and an air pressure detection module. The upper surface of the chassis has a groove, and the transmission rod is located inside the groove.

4. The bottle cap airtightness testing device according to claim 3, characterized in that: The lower surfaces of the transmission rod and the moving rod are fixedly connected to limit sliders. The groove on the upper surface of the chassis is provided with a limit slide groove that cooperates with the limit slider. Three limit slide rails are fixedly connected inside the groove. The outer surface of the moving rod is fixedly connected to a push rod through a connecting rod.

5. The bottle cap airtightness testing device according to claim 4, characterized in that: The transmission rod has a through groove that mates with the sliding block. A plug rod is inserted inside the moving rod. One end of the plug rod is fixedly connected to the outer surface of the arc plate. Two connecting blocks are fixedly installed on the outer surface of the arc plate. A limit rod is fixedly connected to the side of the connecting block near the moving rod. A spring is fixedly connected between the connecting block and the moving rod. The end of the limit rod away from the arc plate is inserted into the inside of the moving rod.

6. The bottle cap airtightness testing device according to claim 5, characterized in that: Both ends of the pin are hinged to auxiliary rods inside the U-shaped frame, and the bottom end of the auxiliary rod is hinged to the upper surface of the support plate through a hinge seat.

7. The bottle cap airtightness testing device according to claim 6, characterized in that: The top of the inner side of the support plate is fixedly connected to a limiting frame that cooperates with the lifting block. The limiting frame has a rectangular opening inside, and both sides of the lifting block are provided with limiting protrusions that cooperate with the limiting opening.

8. The bottle cap airtightness testing device according to claim 7, characterized in that: The upper surface of the pressure plate is fixedly connected to a limiting post, and the upper surface of the support plate is provided with a through hole that cooperates with the limiting post and the connecting rod.

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