Door opening and closing mechanism of vacuum box

Abstract

The utility model relates to a vacuum box door opening and closing mechanism, and relates to the technical field of compressor leakage helium detection vacuum boxes, the vacuum box door opening and closing mechanism comprises a vacuum box body and a door opening and closing mechanism, the vacuum box body is in a cuboid shape with a hollow inner part and an open upper end; the door opening and closing mechanism comprises a sealing cover, a first lever, a second lever, a connecting column, a connecting rod, a limiting adjusting column and an air cylinder. The left side face and the right side face of the vacuum box body are each fixedly connected with a connecting column, and the two connecting columns are symmetrically arranged. One end of the connecting rod and the side face of the first lever are rotationally connected to the connecting column, the other end of the connecting rod is hinged to the second lever, the other end of the second lever is hinged to the middle of the side edge of the sealing cover, the upper end of the first lever is hinged to the front portion of the side edge of the sealing cover, and the lower end of the first lever is hinged to the output end of the air cylinder. Limiting adjusting columns are fixedly connected to the left side face and the right side face of the vacuum box body, the two limiting adjusting columns are symmetrically arranged, and the limiting adjusting columns are located above the connecting rods.

Description

Technical Field

[0001] This utility model relates to the field of vacuum chamber technology for detecting helium leaks in compressors, and more specifically, to a vacuum chamber door opening and closing mechanism. Background Technology

[0002] Air conditioner compressors are generally equipped with a four-way valve, which mainly acts as an intermediate station for refrigerant replacement in the cooling and heating modes of the air conditioner. Structurally, the upper end of the four-way valve is equipped with an exhaust pipe connector, and the lower end of the four-way valve is equipped with a condenser pipe connector, a return pipe connector, and a shut-off valve connector. The four pipe connectors are respectively connected to corresponding pipes for connecting to the compressor exhaust port, condenser, compressor suction port, and indoor unit.

[0003] In existing compressor helium leak detection, a four-way valve needs to be placed in a vacuum chamber. However, the existing vacuum chamber requires manual operation to open and close the door, which is inefficient and the seal is unstable.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Utility Model Content

[0005] The purpose of this utility model is to provide a vacuum chamber door opening and closing mechanism. This mechanism is simple and compact, provides stable testing results, is durable and efficient, saves time, and has promotional value.

[0006] This utility model provides a vacuum chamber door opening and closing mechanism, including a vacuum chamber body and an opening and closing mechanism. The vacuum chamber body is a rectangular parallelepiped with a hollow interior and an open top. The opening and closing mechanism includes a sealing cover, a first lever, a second lever, a connecting column, a connecting rod, a limit adjustment column, and a cylinder. The connecting column is fixedly connected to both the left and right sides of the vacuum chamber body, and the two connecting columns are symmetrically arranged. One end of the connecting rod and the side of the first lever are rotatably connected to the connecting column. The other end of the connecting rod is hinged to the second lever, and the other end of the second lever is hinged to the middle of the side of the sealing cover. The upper end of the first lever is hinged to the front of the side of the sealing cover, and the lower end of the first lever is hinged to the output end of the cylinder. The limit adjustment column is fixedly connected to both the left and right sides of the vacuum chamber body, and the two limit adjustment columns are symmetrically arranged. The limit adjustment column is located above the connecting rod.

[0007] Using the above technical solution, the product to be tested is placed inside the vacuum chamber body during use. The cylinder extends, and through the transmission of force via the first lever, connecting rod, and second lever, the sealing cover is driven to press tightly against the upper opening of the vacuum chamber body, thus sealing the vacuum chamber body. Conversely, when the cylinder retracts, the sealing cover opens. By adjusting the limit adjustment column, the opening amount of the sealing cover can be adjusted. The above actions together complete one opening and closing of the vacuum chamber door.

[0008] Furthermore, the door opening and closing mechanism also includes an O-ring seal, and an annular groove is provided at the upper opening of the vacuum chamber body, in which the O-ring seal is connected.

[0009] Furthermore, the door opening and closing mechanism also includes a hinge joint, which is hinged to the lower end of the first lever, and the other end of the hinge joint is connected to the output end of the cylinder.

[0010] This utility model's vacuum chamber door opening and closing mechanism features a simple and compact design, stable testing results, durability, high efficiency, and time-saving benefits, making it worthy of widespread application. It can replace manual or semi-automatic vacuum chamber door opening and closing, solving problems related to unstable sealing, layout space, and response speed. It is convenient and quick, improving production efficiency and ensuring product quality. Attached Figure Description

[0011] Figure 1 A schematic diagram of the vacuum box door opening and closing mechanism provided in an embodiment of this utility model.

[0012] Figure 2 for Figure 1 A plan view of the opening and closing mechanism of the medium vacuum chamber.

[0013] Figure 3 for Figure 1 A plan view of the door opening and closing mechanism of the medium vacuum chamber.

[0014] Figure 4 for Figure 1 A schematic diagram of the opening and closing mechanism of the vacuum chamber.

[0015] The reference numerals and components involved in the accompanying drawings are shown below:

[0016] 100, Vacuum chamber body; 110, Annular groove; 200, Door opening and closing mechanism.

[0017] 210, sealing cap 220, first lever 230, second lever

[0018] 240, connecting column 250, connecting rod 260, limit adjustment column

[0019] 270, cylinder 280, O-ring seal 290, hinge joint Detailed Implementation

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0021] The terms "first," "second," "third," "fourth," etc., used in the specification and claims of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0022] Example 1

[0023] Figure 1 This is a structural schematic diagram of the vacuum box door opening and closing mechanism provided in an embodiment of the present invention. Figure 2 for Figure 1 A plan view of the opening and closing mechanism of the medium vacuum chamber. Figure 3 for Figure 1 A plan view of the door opening and closing mechanism of the medium vacuum chamber. Figure 4 for Figure 1 A schematic diagram of the opening and closing mechanism of the vacuum chamber. Please refer to... Figure 1 , Figure 2 , Figure 3 , Figure 4 The vacuum chamber door opening and closing mechanism provided in this embodiment includes a vacuum chamber body 100 and a door opening and closing mechanism 200. The vacuum chamber body 100 is a rectangular parallelepiped with a hollow interior and an open top. The door opening and closing mechanism 200 includes a sealing cover 210, a first lever 220, a second lever 230, a connecting post 240, a connecting rod 250, a limit adjustment post 260, and a cylinder 270. The connecting post 240 is fixedly connected to both the left and right sides of the vacuum chamber, and the two connecting posts 240 are symmetrically arranged. One end of the connecting rod 250 and the side of the first lever 220... The connecting rod 250 is rotatably connected to the connecting column 240. The other end of the connecting rod 250 is hinged to the second lever 230. The other end of the second lever 230 is hinged to the middle of the side of the sealing cover 210. The upper end of the first lever 220 is hinged to the front of the side of the sealing cover 210. The lower end of the first lever 220 is hinged to the output end of the cylinder 270. The limiting adjustment column 260 is fixedly connected to both the left and right sides of the vacuum box. The two limiting adjustment columns 260 are symmetrically arranged and are located above the connecting rod 250.

[0024] It should be noted that when using the vacuum chamber door opening and closing mechanism 200 of this utility model, the product to be tested is placed inside the vacuum chamber body 100, and the cylinder 270 extends. Through the force transmission of the first lever 220, connecting rod 250 and second lever 230, the sealing cover 210 is driven to press tightly against the upper opening of the vacuum chamber body 100, thereby sealing the vacuum chamber body 100. Conversely, when the cylinder 270 retracts, the sealing cover 210 opens. By adjusting the limit adjustment column 260, the opening amount of the sealing cover 210 can be adjusted. The above actions together complete one vacuum chamber door opening and closing cycle.

[0025] This utility model's vacuum chamber door opening and closing mechanism 200 features a simple and compact design, stable testing results, durability, high efficiency, and time-saving benefits, making it worthy of widespread application. It can replace manual or semi-automatic vacuum chamber door opening and closing, solving problems related to unstable sealing, space constraints, and slow response speed. It is convenient and quick, improving production efficiency and ensuring product quality.

[0026] Further reference Figure 1 , Figure 2 The door opening and closing mechanism 200 of this utility model also includes an O-ring seal 280. An annular groove 110 is provided at the upper opening of the vacuum box body 100, and the O-ring seal 280 is connected in the annular groove 110.

[0027] It should be noted that the O-ring 280 further improves the sealing effect of the vacuum chamber body 100.

[0028] Furthermore, the door opening and closing mechanism 200 of this utility model also includes a hinge joint 290, which is hinged to the lower end of the first lever 220, and the other end of the hinge joint 290 is connected to the output end of the cylinder 270.

[0029] As can be seen from the above description, the advantages of this utility model are:

[0030] This utility model's vacuum chamber door opening and closing mechanism features a simple and compact design, stable testing results, durability, high efficiency, and time-saving benefits, making it worthy of widespread application. It can replace manual or semi-automatic vacuum chamber door opening and closing, solving problems related to unstable sealing, layout space, and response speed. It is convenient and quick, improving production efficiency and ensuring product quality.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A vacuum chamber door opening and closing mechanism, characterized in that, It includes a vacuum chamber body (100) and a door opening mechanism (200), wherein the vacuum chamber body (100) is a cuboid with a hollow interior and an open top. The door opening and closing mechanism (200) includes a sealing cover (210), a first lever (220), a second lever (230), a connecting column (240), a connecting rod (250), a limit adjustment column (260), and a cylinder (270); The connecting posts (240) are fixedly connected to both the left and right sides of the vacuum chamber, and the two connecting posts (240) are arranged symmetrically. One end of the connecting rod (250) and the side of the first lever (220) are rotatably connected to the connecting post (240). The other end of the connecting rod (250) is hinged to the second lever (230). The other end of the second lever (230) is hinged to the middle of the side of the sealing cover (210). The upper end of the first lever (220) is hinged to the front of the side of the sealing cover (210). The lower end of the first lever (220) is hinged to the output end of the cylinder (270). The limiting adjustment column (260) is fixedly connected to both the left and right sides of the vacuum chamber. The two limiting adjustment columns (260) are symmetrically arranged and are located above the connecting rod (250).

2. The vacuum chamber door opening and closing mechanism according to claim 1, characterized in that, The door opening and closing mechanism (200) also includes an O-ring (280), and an annular groove (110) is provided at the upper opening of the vacuum chamber body (100), in which the O-ring (280) is connected.

3. The vacuum chamber door opening and closing mechanism according to claim 1, characterized in that, The door opening and closing mechanism (200) also includes a hinge (290) which is hinged to the lower end of the first lever (220), and the other end of the hinge (290) is connected to the output end of the cylinder (270).

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