An automatic gasket fitting system and method

Abstract

The present invention relates to the technical field of gasket fitting, and specifically, to an automatic gasket fitting system and method. It includes a support table and a fitting device arranged beside the upper surface of the support table. There is a frame for holding gaskets beside the fitting device. The middle of the support table is symmetrically provided with brackets for supporting the cylinder block. A limiting part for limiting is arranged between the brackets. A suction system is arranged between the two side brackets to form a negative pressure between the gasket and the cylinder block, so that the gasket and the cylinder block are fitted. A sticky roller is used to clean the oil stains and impurities attached to the gasket to prevent the oil stains and impurities from affecting the sealing performance of the gasket. Moreover, during the movement of the sticky roller, the sticky roller squeezes the limiting part, and the limiting part squeezes the airbag ball to eject the ejector rod, so that the rack drives the turning plate to turn counterclockwise, and one end of the gasket is restrained by the turning plate, thereby restricting the vibration of the gasket and preventing the gasket from shifting, so as to ensure the fitting of the gasket and the cylinder block.

Description

Technical Field

[0001] The present invention relates to the technical field of gasket fitting, and specifically, to an automatic gasket fitting system and method. Background Art

[0002] A sealing gasket is a sealing spare part used in machinery, equipment, pipelines, wherever there is fluid. It is a material that plays a sealing role inside and outside. The sealing gasket is made of metal or non-metal plate materials through processes such as cutting, stamping or cutting, and is used for the sealing connection between pipelines, and the sealing connection between machine parts of machinery and equipment.

[0003] When assembling the engine block and the oil pan, in order to prevent the engine oil inside the block from overflowing and ensure the gasket fits with the block, an automatic fitting device is used to place the gasket on the block so that the gasket fits with the block. However, when the gasket needs to be reused after vehicle maintenance, since the gasket after cleaning is fitted with the block again, the lubricating oil in the small holes on the sealing gasket cannot be cleaned thoroughly, causing the lubricating oil to flow onto the surface of the gasket. At this time, it is necessary to clean the upper surface of the gasket.

[0004] Metal gaskets are usually made of metal materials such as aluminum, steel or copper, and have a certain toughness. When cleaning impurities on the gasket, generally, a sticky roller is used to clean impurities and oil stains on the metal gasket in an adhesive form. However, when the sticky roller moves on the gasket, as the roller moves, the roller gradually tends to the middle position of the metal gasket. Under the action of the stickiness of the roller, the other end of the metal gasket will be slightly lifted, and the vibrating metal gasket will knock against the block, easily causing the position of the gasket to shift, thus affecting the sealing performance between the block and the oil pan and resulting in the phenomenon of engine oil overflow. Summary of the Invention

[0005] The purpose of the present invention is to provide an automatic gasket fitting system and method to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention aims to provide an automatic gasket fitting system, including a support table and a fitting device arranged beside the upper surface of the support table. A frame for holding gaskets is arranged beside the fitting device. Supports for supporting the engine block are symmetrically arranged in the middle of the support table. A limiting part for limiting is arranged between the supports. A suction system is arranged between the two supports to form a negative pressure between the gasket and the block, so that the gasket and the block fit. A rolling part is arranged on the support table beside the support. The rolling part is used to clean the dust on the surface of the gasket after being fitted by the fitting device. During the cleaning process, the rolling part squeezes the limiting part outside the gasket, causing the limiting part to move downward and squeeze the suction system, and using the suction system to push the ejecting part arranged beside to limit the lifted end of the gasket.

[0007] As a further improvement of this technical solution, the suction system includes a suction box and an air bag connected to the suction box through a trachea. The support frame provided at the bottom of the suction box is fixedly connected to the support table, and the height of the suction box is lower than that of the gasket.

[0008] As a further improvement of this technical solution, the cavity formed in the suction box communicates with a plurality of air inlet holes opened on the inner side of the support table. The air inlet holes are obliquely upward from the inside to the outside. When the gasket and the cylinder block are attached, a negative pressure is formed around the gasket to achieve close attachment of the gasket to the cylinder block.

[0009] As a further improvement of this technical solution, the rolling part is composed of a first hydraulic rod and a support plate. One end of the first hydraulic rod is rotatably connected to the support plate, and the other end is rotatably connected to an auxiliary plate fixed to the end of the support table through a rotating shaft. A sticky roller for cleaning impurities on the gasket is rotatably connected to the bottom of the support plate.

[0010] As a further improvement of this technical solution, second hydraulic rods are fixedly connected to the bottoms of both ends of the support plate. Collars fixedly connected to the bottoms of the second hydraulic rods are slidably connected to a slide bar beside, and the slide bar is fixed to the upper surface of the support table.

[0011] As a further improvement of this technical solution, a limiting part is provided on the support frame. The limiting part includes a limiting rod and a pressing plate. The end of the limiting rod is in an inclined shape, and an extension plate is provided at one end of the limiting rod. The extension plate is flush with the top of the limiting rod and extends along the outside of the cylinder block to the other limiting rod. The bottom of the limiting rod is fixedly connected to the pressing plate through a vertical rod. When the pressing plate moves downward, it squeezes the air bag below. The vertical rod is slidably connected to the support frame, and a first spring sleeved on the vertical rod is used to push the downward-moved limiting rod upward.

[0012] As a further improvement of this technical solution, the ejecting part is composed of a ejecting rod and a rack fixedly connected to the ejecting rod. The ejecting rod is slidably connected to a support fixed on the support table, and the rack meshes with a gear.

[0013] As a further improvement of this technical solution, the tops of support plates fixedly connected to both sides of the support are rotatably connected to a turning plate. The bottom of the turning plate is coaxially connected to the gear. When the ejecting rod moves outward, the rack drives the gear to rotate, causing the turning plate to rotate counterclockwise to limit the upturned end of the gasket.

[0014] The second object of the invention is to provide a method for operating a gasket automatic fitting system including any one of the above, which is characterized by including the following method steps:

[0015] S1. Place the gasket in the frame on the cylinder block supported by the two side brackets through the support table;

[0016] S2. Then, air is pumped into the cavity through the air holes of the suction box to form a negative pressure area around the gasket. While cleaning the impurities attached to the bottom of the gasket, it can also make the gasket fit tightly with the cylinder block.

[0017] S3. The impurities attached to the surface of the gasket are cleaned by the rolling part. During the cleaning process, the gasket is restricted by multiple limiting parts to prevent the gasket from shifting.

[0018] S4. Finally, the squeezed limiting part squeezes the suction system, so that the ejecting part presses against the upturned end of the gasket, thereby preventing the gasket from vibrating and shifting, which affects the sealing performance of the gasket.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. In this gasket automatic fitting system, the sticky roller is used to clean the oil stains and impurities attached to the gasket, preventing the oil stains and impurities from affecting the sealing performance of the gasket. Moreover, during the movement of the sticky roller, the sticky roller squeezes the limiting part, and the limiting part squeezes the airbag ball to eject the ejector rod, so that the rack drives the turning plate to turn counterclockwise, and one end of the gasket is restrained by the turning plate, thereby restricting the vibration of the gasket and preventing the gasket from shifting, so as to ensure the fitting of the gasket and the cylinder block.

[0021] 2. In this gasket automatic fitting system, during the turning of the turning plate, the turning plate gradually tends to close with the gasket, so that the air in the negative pressure area can be gathered to form a barrier above the negative pressure area, and the pressure difference between the bottom of the turning plate and the air inlet hole increases, thereby improving the adhesion force between the gasket and the cylinder block and making the gasket and the cylinder block fit more tightly.

[0022] 3. In this gasket automatic fitting system, when the sticky roller cleans the gasket, the gasket is restricted by multiple limiting rods to keep the gasket stable, so as to ensure the sealing performance between the cylinder block and the oil pan. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is a schematic diagram of the structure of the rolling part of the present invention;

[0025] Figure 3 is a schematic diagram of the structures of the limiting part, the ejecting part, the bracket and the suction box of the present invention;

[0026] Figure 4 is a front view of the sectional structure of the suction box of the present invention;

[0027] Figure 5 is a right view of the structure of the ejecting part of the present invention;

[0028] Figure 6 It is a schematic diagram of the sectioning and explosion structure of the limiter of the suction box of the present invention;

[0029] Figure 7 It is a front view of the cutaway structure of the flip plate and the suction box of the present invention;

[0030] Figure 8 It is a front view of the flip plate and ejection part structure of the present invention.

[0031] The meaning of each number in the figure is:

[0032] 100, support platform; 101, laminating device; 102, bracket;

[0033] 110, suction box; 111, air inlet; 120, air bag ball;

[0034] 200, rolling part; 201, first hydraulic rod; 202, support plate; 203, sticky roller; 204, second hydraulic rod;

[0035] 210, Slider;

[0036] 300, limiting part; 301, limiting rod; 302, pressing plate; 303, first spring;

[0037] 310, support frame;

[0038] 400, ejector; 401, ejector rod; 402, rack; 403, gear; 404, support; 405, second spring;

[0039] 410. Flip board. DETAILED DESCRIPTION

[0040] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] like Figure 1 and Figure 3 As shown, a gasket automatic laminating system is provided, including a support table 100 and a laminating device 101 arranged on the side of the upper surface of the support table 100, a frame for holding the gasket is arranged on the side of the laminating device 101, and a bracket 102 for supporting the cylinder body is symmetrically arranged in the middle of the support table 100, wherein the laminating device 101 is the same as the traditional laminating mechanism, and a mechanical arm and a suction cup are used to place the gasket in the bracket 102 on the cylinder body. Secondly, a limiting part 300 for limiting is arranged between the brackets 102, and a suction system is arranged between the brackets 102 on both sides for forming a negative pressure between the gasket and the cylinder body, and the negative pressure is used to make the gasket and the cylinder body fit tightly, thereby limiting the movement of the gasket.

[0044] In addition, a rolling part 200 is provided on the support platform 100 next to the bracket 102. The rolling part 200 is used to clean the dust on the surface of the gasket after being bonded by the bonding device 101. During the cleaning process, the rolling part 200 squeezes the limiting part 300 on the outside of the gasket, so that the limiting part 300 moves down to squeeze the suction system, and uses the suction system to push the ejection part 400 set on the side to limit the raised end of the gasket, so as to support the raised end of the gasket to prevent the gasket from shifting due to vibration.

[0045] Among them, combined Figure 4As shown, the suction system includes a suction box 110 and an air bag 120 connected to the suction box 110 through a trachea. The support frame 310 provided at the bottom of the suction box 110 is fixedly connected to the support table 100. In addition, the air bag 120 is connected to an external air extraction device through a trachea (the connection method belongs to common knowledge and will not be elaborated here). The cavity formed in the suction box 110 communicates with a plurality of air intake holes 111 opened on the inner side of the support table 100, and the air intake holes 111 are inclined obliquely upward from the inside to the outside. In this way, when the gasket is attached to the cylinder block, a negative pressure is formed around the gasket, and the gasket is tightly attached to the cylinder block by means of air extraction to prevent the gasket from loosening.

[0046] It should be noted that the height of the suction box 110 is set lower than the height of the gasket. The purpose is to utilize the height difference formed between the suction box 110 and the gasket in the vertical direction, so that the inhaled air flow in the air intake holes 111 has a component force in the vertical direction, so that the entire circumference of the gasket can be tightly attached to the cylinder block to prevent the gasket from tilting.

[0047] It can be seen from this that the cylinder block is first placed between the two side brackets 102 and fixed, and then the gasket is placed on the cylinder block by using the fitting device 101, and the gasket is tightly attached to the cylinder block by using negative pressure. At the same time, the negative pressure generated by the gas flow can also suck away the impurities between the gasket and the cylinder block to prevent the impurities from affecting the sealing performance between the cylinder block and the oil pan.

[0048] In order to ensure the cleanliness of the upper surface of the gasket, on the basis of the above structure, in combination with Figure 2 As shown, the specific structure of the rolling part 200 is disclosed. The rolling part 200 is composed of a first hydraulic rod 201 and a support plate 202. One end of the first hydraulic rod 201 is rotatably connected to the support plate 202, and the other end is rotatably connected to an auxiliary plate fixed at the end of the support table 100 through a rotating shaft. A sticky roller 203 for cleaning impurities on the gasket is rotatably connected to the bottom of the support plate 202. On the other hand, the two ends of the bottom of the support plate 202 are fixedly connected with a second hydraulic rod 204, and the collar fixedly connected to the bottom of the second hydraulic rod 204 is slidably connected to a sliding rod 210 beside it. The sliding rod 210 is fixed on the upper surface of the support table 100. Specifically, in use: the sticky roller 203 is adjusted to be adapted to the height of the gasket through the second hydraulic rod 204, and then the first hydraulic rod 201 is used to push the support plate 202 to move on the gasket, so that the sticky roller 203 cleans the impurities on the gasket, so as to ensure its sealing performance when the oil pan and the gasket are fitted later.

[0049] The above is the first embodiment of the present invention. Considering that during the cleaning process of the gasket, due to the stickiness of the sticky roller 203 and the movement of the support plate 202 pushed by the first hydraulic rod 201, the gasket may slide relative to the cylinder block. Therefore, the following Figure 6Embodiment 2 of the present invention is shown. This embodiment discloses another implementation method for limiting the gasket. Figure 2 As shown:

[0050] In this embodiment, a limiting part 300 is provided on the support frame 310, and the limiting part 300 includes a limiting rod 301 and a pressing plate 302. The end of the limiting rod 301 is in an inclined shape, so that when cleaning the upper surface of the gasket, the rolling sticky roller 203 contacts the limiting rod 301, so that the limiting rod 301 moves downward. On the other hand, the bottom of the limiting rod 301 is fixedly connected by a vertical rod and a pressing plate 302, and the downward movement of the pressing plate 302 squeezes the airbag ball 120 below, so that the gas flow rate in the trachea increases (the cross-sectional area in the airbag ball 120 decreases, and the gas flow rate increases, thereby using the pressure difference to increase the attraction to the gasket, so that the gasket fits more closely on the cylinder body). The vertical rod is slidably connected to the support frame 310, and the first spring 303 on the vertical rod is used to push the limit rod 301 upward after it moves downward. When the sticky roller 203 is free from squeezing the limit rod 301, the elastic effect of the first spring 303 is used to restore the limit rod 301 to its normal state, thereby restricting the gasket again.

[0051] In order to ensure that the pressing plate 302 continues to squeeze the airbag ball 120 during the movement of the sticky roller 203, an extension plate is provided at one end of the limit rod 301 close to the airbag ball 120. The extension plate is flush with the top of the limit rod 301 and extends along the outside of the cylinder toward the limit rod 301 at the other end. In this way, when the sticky roller 203 is separated from the limit rod 301 at the other end, the pressing plate 302 can be separated from squeezing the airbag ball 120. The purpose is to prevent the pressing plate 302 from moving upward after the limit rod 301 close to the airbag ball 120 is separated from the squeezing of the sticky roller 203, causing the ejection part 400 on the side to move in the opposite direction, thereby losing the restriction on the gasket, which is easy to cause the gasket to deviate.

[0052] At the same time, if the sticky roller 203 rolls to the point where it just separates from the limit rod 301 (the limit rod 301 that is not connected to the extension plate), and the ejection portion 400 on the side of the airbag ball 120 also loses its restriction on the gasket, the gasket will be stuck to the sticky roller 203, causing the gasket to shift, thereby affecting its sealing performance.

[0053] To this end, when the sticky roller 203 is separated from the extension plate, the limiting rod 301 away from the airbag ball 120 moves upward to press against the gasket, thereby preventing the gasket from being stuck to the sticky roller 203, causing the gasket and the sticky roller 203 to move together, thereby restricting the gasket.

[0054] Based on the above structure, Figure 5 , Figure 7 andFigure 8 Embodiment 3 of the present invention is shown. This embodiment discloses another implementation method for limiting the gasket. Figure 2 and Figure 6 As shown:

[0055] In this embodiment, the ejection part 400 is composed of a push rod 401 and a rack 402 fixedly connected to the push rod 401. The push rod 401 is slidably connected to a support 404 fixed on the support platform 100, and the rack 402 meshes with a gear 403. In addition, the top of the support plate fixedly connected on both sides of the support 404 is rotatably connected to the flip plate 410, and the bottom of the flip plate 410 is coaxially connected to the gear 403. When the airbag ball 120 is squeezed, it will push the push rod 401 to move outward, and the rack 402 drives the gear 403 to rotate, so that the flip plate 410 rotates counterclockwise at the rotation connection between the support plate and the flip plate 410. The rotated flip plate 410 squeezes the gasket, so that when the sticky roller 203 cleans the upper surface of the gasket, the raised end of the gasket is restricted to prevent the gasket from being offset from the cylinder due to vibration, thereby ensuring the stability of the gasket.

[0056] It should be noted that: when the flip plate 410 squeezes the gasket, the negative pressure area below the flip plate 410 is close to the air pipe, which will increase the negative pressure area there. However, the attraction of the increased negative pressure area to the gasket is not enough to cause sliding between the gasket and the cylinder body (i.e., the gasket moves toward the flip plate 410).

[0057] When the sticky roller 203 is detached from the extension plate (the limit rod 301 connected to the extension plate moves upward, and the pressure plate 302 is detached from the airbag ball 120), the limit rod 301 (the limit rod 301 not connected to the extension plate) is pushed upward to press one end of the gasket. Under the elastic action of the second spring 405, the push rod 401 drives the rack 402 to move in the reverse direction. The elastic potential energy of the second spring 405 can overcome the gravity of the flip plate 410, that is, the second spring 405 can overcome the rotational force required to flip the flip plate 410, and the flip plate 410 rotates in the opposite direction, thereby breaking away from the restriction on the gasket. In this process, the flip plate 410 returns to normal.

[0058] Finally, the second hydraulic rod 204 lifts the support plate 202 upwards, and under the pulling of the first hydraulic rod 201, the sticky roller 203 is restored to the initial state for next use.

[0059] The second object of the invention is to provide a method for an automatic gasket laminating system, comprising the following steps:

[0060] S1, placing the gasket in the frame on the cylinder body supported by the brackets 102 on both sides through the support platform 100;

[0061] S2. Then, air is pumped into the cavity through the air holes of the suction box 110 to form a negative pressure area around the gasket. While cleaning the impurities attached to the bottom of the gasket, the gasket can also be closely attached to the cylinder block.

[0062] S3. The impurities attached to the surface of the gasket are cleaned by the rolling part 200. During the cleaning process, the gasket is restricted by multiple limiting parts 300 to prevent the gasket from shifting.

[0063] S4. Finally, the squeezed limiting part 300 squeezes the suction system, so that the ejecting part 400 abuts against the lifted end of the gasket, thereby preventing the gasket from vibrating and shifting, which affects the sealing performance of the gasket.

[0064] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A gasket automatic laminating system, comprising a support platform (100) and a laminating device (101) arranged on the side of the upper surface of the support platform (100), a frame for holding the gasket is arranged on the side of the laminating device (101), brackets (102) for supporting a cylinder body are symmetrically arranged in the middle of the support platform (100), and a limiting portion (300) for limiting is arranged between the brackets (102), characterized in that: The suction system provided between the brackets (102) on both sides is used to form negative pressure between the gasket and the cylinder body so that the gasket and the cylinder body are fitted together. A rolling part (200) is provided on the support platform (100) next to the bracket (102). The rolling part (200) is used to clean dust on the surface of the gasket after being fitted by the fitting device (101). During the cleaning process, the rolling part (200) presses the limiting part (300) outside the gasket, so that the limiting part (300) moves downward to press the suction system, and the suction system is used to push the ejection part (400) provided next to it to limit the raised end of the gasket. The suction system comprises a suction box (110) and an airbag ball (120) connected to the suction box (110) via an air tube, a support frame (310) provided at the bottom of the suction box (110) is fixedly connected to a support platform (100), and a height of the suction box (110) is lower than a height of the gasket; A limiting portion (300) is provided on the support frame (310), and the limiting portion (300) includes a limiting rod (301) and a pressure plate (302). The end of the limiting rod (301) is in an inclined shape, and an extension plate is provided at one end of the limiting rod (301). The extension plate is flush with the top of the limiting rod (301) and extends along the outside of the cylinder body toward the limiting rod (301) at the other end. The bottom of the limiting rod (301) is fixedly connected by a vertical rod and the pressure plate (302). The pressure plate (302) moves downward to squeeze the airbag ball (120) below. The vertical rod is slidably connected to the support frame (310). The first spring (303) sleeved on the vertical rod is used to push the limiting rod (301) upward after it moves downward. The ejection portion (400) is composed of a push rod (401) and a rack (402) fixedly connected to the push rod (401); the push rod (401) is slidably connected to a support (404) fixed on the support platform (100); and the rack (402) meshes with a gear (403); The top of the support plate fixedly connected to both sides of the support (404) is rotatably connected to the flip plate (410), and the bottom of the flip plate (410) is coaxially connected to the gear (403). When the top rod (401) moves outward, the rack (402) drives the gear (403) to rotate, so that the flip plate (410) rotates counterclockwise, so as to limit the raised end of the gasket; The second spring (405) sleeved on the end of the push rod (401) abuts against the support (404), and the push rod (401) fits with the airbag ball (120) on the side.

2. The gasket automatic laminating system according to claim 1, characterized in that: The cavity formed in the suction box (110) is communicated with a plurality of air inlet holes (111) opened on the inner side of the support platform (100); the air inlet holes (111) are inclined upward from the inside to the outside; when the gasket and the cylinder body are fitted together, negative pressure is formed around the gasket to achieve tight fitting of the gasket and the cylinder body.

3. The gasket automatic laminating system according to claim 1, characterized in that: The rolling part (200) is composed of a first hydraulic rod (201) and a support plate (202); one end of the first hydraulic rod (201) is rotatably connected to the support plate (202), and the other end is rotatably connected to an auxiliary plate fixed to the end of the support platform (100) via a rotating shaft; the bottom of the support plate (202) is rotatably connected to a sticky roller (203) for cleaning impurities on the gasket.

4. The gasket automatic laminating system according to claim 3, characterized in that: The bottoms of both ends of the support plate (202) are fixedly connected to a second hydraulic rod (204), and a collar fixedly connected to the bottom of the second hydraulic rod (204) is slidably connected to a sliding rod (210) on one side, and the sliding rod (210) is fixed to the upper surface of the support platform (100).

5. A method for operating the gasket automatic laminating system according to any one of claims 1 to 4, characterized in that: The method comprises the following steps: S1, placing the gasket in the frame on the cylinder body supported by the brackets (102) on both sides through the support platform (100); S2, then, air is sucked into the cavity through the air holes of the suction box (110), so that a negative pressure area is formed around the gasket, which can clean the impurities attached to the bottom of the gasket and make the gasket fit tightly with the cylinder body; S3, cleaning impurities attached to the surface of the gasket by means of the rolling part (200), and during the cleaning process, the plurality of limiting parts (300) limit the gasket to prevent the gasket from being deflected; S4. Finally, the squeezed limiting portion (300) squeezes the suction system, so that the ejection portion (400) presses against the raised end of the gasket, thereby preventing the gasket from vibrating and deviating, thereby affecting the sealing performance of the gasket.

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