A two-axle protective joint

Abstract

The utility model relates to a double-shaft type protective combined leaf, including fixed base, door seat and connecting block, be equipped with middle recess on the door seat, its both sides are equipped with fixed boss, is equipped with fixed hole on the fixed boss, is equipped with bolt on fixed hole, and the bolt locks the door seat to the door plate outside surface edge, is equipped with first axle hole on two fixed bosses, is equipped with first rotating shaft in first axle hole, is equipped with rotating groove of fixed base, both sides of which are equipped with axle pedestal, and are equipped with the second axle hole of second rotating shaft, are equipped with second fixed hole on fixed base, connecting block both ends are equipped with front axle hole and rear axle hole respectively, and the second rotating shaft is equipped with second rotating shaft in front axle hole, and the first rotating shaft is equipped with first rotating shaft in rear axle hole, when the door seat and fixed base form 180 degrees included angle, the distance between the axle pedestal rear end of fixed base and the front end of corresponding boss of door seat is greater than half of axle pedestal thickness. The utility model can effectively improve the stability of opening and closing between cavity and cavity door of large-scale plasma cleaning equipment and the sealing adaptability after the cavity door is closed.

Description

Technical Field

[0001] This utility model relates to a connection structure, and more particularly to a biaxial protective hinge suitable for use in large vacuum plasma chamber doors. Background Technology

[0002] Plasma cleaning is an auxiliary process that has emerged in the last decade for improving the surface properties of electronic products, primarily plastic products. By spraying plasma onto the surface of plastic products, plasma cleaning enhances surface performance. This provides a more stable and higher-quality surface cleanliness foundation for subsequent printing or bonding processes. Large-scale plasma cleaning systems typically employ vacuum plasma chambers to provide a better environment. In this process, the chamber and its door are usually sealed. The chamber doors are generally made of metal. For larger chamber doors, their weight and volume are significant, and conventional door hinge structures cannot adequately meet the requirements for support, opening and closing, rotation, and safety, easily leading to contact damage between the door and the chamber shell. Summary of the Invention

[0003] The technical problem solved by this utility model is to provide a dual-axis protective hinge, which is specifically used for the connection between the cavity and the cavity door of a large plasma cleaning equipment, thereby improving the stability of the cavity door opening and closing and the sealing adaptability after the cavity door is closed.

[0004] The technical solution of this utility model is: A dual-axis protective hinge includes a fixed base, a door seat, and a connecting block. The door seat has a central groove connecting the front and rear ends. Fixed bosses are provided on both sides of the central groove. Fixed holes are provided through the fixed bosses. Bolts are inserted through the fixed holes and the bolts lock the door seat to the outer edge of the door panel. The two fixed bosses have first shaft holes extending along the left and right sides of the fixed base and aligned. First rotating shafts are inserted into the first shaft holes. The rear end of the fixed seat is provided with a rotating groove that extends through the thickness direction of the door seat. A shaft platform is provided on both sides of the rotating groove. The two shaft platforms are provided with second shaft holes that extend along the left and right sides of the fixed seat and are aligned. A second rotating shaft passes through the second shaft hole. The first rotating shaft is parallel to the second rotating shaft. The fixed seat is provided with multiple second fixing holes. The fixed seat is fixed to the outer surface of the plasma sealing cavity wall by bolts passing through the second fixing holes. The connecting block is a plate whose width matches the width of the central groove and the rotating groove. The connecting block has a front axle hole and a rear axle hole at both ends. The second rotating shaft passes through the front axle hole, and the first rotating shaft passes through the rear axle hole. When the door seat and the fixed seat form a 180-degree angle, the distance between the rear end of the fixed seat's axle platform and the front end of the corresponding door seat's boss is greater than half the thickness of the axle platform.

[0005] As described above, in the dual-axis protective hinge, a first bearing is provided on the first rotating shaft at a position between the connecting block and the boss of the door seat.

[0006] As described above, in the dual-shaft protective hinge, a second bearing is provided on the second rotating shaft at a position between the connecting block and the fixed seat.

[0007] As described above, in the dual-axis protective hinge, the connecting block is provided with a first adjusting bolt hole on the rear side of the first rotating shaft, and a first adjusting bolt is provided in the first adjusting bolt hole, with the end of the first adjusting bolt abutting against the bottom surface of the central groove of the door seat.

[0008] As described above, in the dual-axis protective hinge, the connecting block is also provided with a second adjusting bolt hole on the front side of the first rotating shaft, and a second adjusting bolt is provided in the second adjusting bolt hole, with the end of the second adjusting bolt abutting against the bottom surface of the central groove of the door seat.

[0009] As described above, in the dual-axis protective hinge, at least two third adjusting bolt holes are provided on the fixing base between a plurality of second fixing holes, and a third adjusting bolt is provided in the third adjusting bolt hole, with the end of the third adjusting bolt abutting against the outer surface of the plasma sealing cavity wall.

[0010] As can be seen from the above description, compared with the prior art, this utility model can indeed achieve the following effects: This utility model features a dual-axis protective hinge specifically designed for connecting the cavity and cavity door of large plasma cleaning equipment. The fixed base and door seat are connected via dual axes and connecting blocks, allowing the door panel fixed to the door seat to rotate stably within a range of 90-270 degrees. Furthermore, the predetermined length of the connecting blocks prevents the side of the door panel from colliding with the vacuum cavity wall during rotation, avoiding damage to the cavity door, especially large and heavy ones, caused by scraping and squeezing against the cavity wall. It also better supports the weight of the cavity door, improving the stability of opening and closing, the safety of operation, and the sealing adaptability after closing. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention; Figure 2 This is an exploded structural diagram of a preferred embodiment of the present invention.

[0012] Explanation of key component designations: Utility Model Content

[0014] 1: Door seat; 2: Fixed seat; 3: Connecting block; 8: Central groove; 10: Fixed boss; 12: Fixed hole; 6: First shaft hole; 4: First rotating shaft; 9: Rotating groove; 11: Shaft platform; 7: Second shaft hole; 5: Second rotating shaft; 13: Second fixed hole; 14: Rear shaft hole; 15: Front shaft hole; 19: First bearing; 20: Second bearing; 16: First adjusting bolt hole; 17: Second adjusting bolt hole; 18: Third adjusting bolt hole. Detailed Implementation

[0015] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0016] In a preferred embodiment of the biaxial protective hinge of this utility model, please refer to [link / reference needed]. Figure 1 and Figure 2 As shown, a preferred embodiment of the present invention is a dual-axis protective hinge, comprising a fixed base 2, a door seat 1, and a connecting block 3. The door seat 1 has a central groove 8 connecting the front and rear ends. Fixed protrusions 10 are provided on both sides of the central groove 8. Fixed holes 12 penetrate the fixed protrusions 10, and bolts are inserted through the fixed holes 12 to lock the door seat 1 to the outer edge of the door panel. The two fixed protrusions 10 have first shaft holes 6 extending and aligned along the left and right sides of the fixed base 2. First rotating shafts 4 are inserted into the first shaft holes 6. The first rotating shafts 4 are provided to allow for a range of rotational adjustment between the door panel and the connecting block 3. This allows for better sealing adjustment when the door panel is closed to the vacuum chamber opening, achieving optimal sealing and preventing poor sealing due to limitations in the door panel's rotation angle and range.

[0017] The rear end of the fixed base 2 is provided with a rotating groove 9 that penetrates the thickness direction of the door seat 1. Both sides of the rotating groove 9 are provided with a shaft platform 11. The two shaft platforms 11 are provided with second shaft holes 7 that extend along the left and right sides of the fixed base 2 and are aligned. A second rotating shaft 5 passes through the second shaft hole 7. The first rotating shaft 4 is parallel to the second rotating shaft 5. The fixed base 2 is provided with multiple second fixing holes 13. The fixed base 2 is fixed to the outer surface of the plasma sealing cavity wall by bolts passing through the second fixing holes 13. By fixing it to the outer side of the wall wall through multiple second fixing holes 13, it is positioned corresponding to the door seat 1, so as to achieve the pressure of a door panel with a greater weight.

[0018] The connecting block 3 is a plate with a width matching the width of the central groove 8 and the rotating groove 9. The connecting block 3 has a front axle hole 15 and a rear axle hole 14 at both ends. The second rotating shaft 5 passes through the front axle hole 15, and the first rotating shaft 4 passes through the rear axle hole 14. When the door seat 1 and the fixed seat 2 form a 180-degree angle, the distance between the rear end of the axle platform 11 of the fixed seat 2 and the front end of the corresponding boss of the door seat 1 is greater than half the thickness of the axle platform 11. This ensures that during the rotation of the connecting block 3, the edge of the door panel remains free from contact with the hollow cavity wall, guaranteeing sufficient protection for both the door panel and the cavity wall.

[0019] In a preferred embodiment of the dual-axis protective hinge of this invention as described above, a first bearing 19 is provided on the first rotating shaft 4 at a position between the connecting block 3 and the boss of the door seat 1. As shown in the figure, the connecting block 3 and the door seat 1 are hinged together by the first rotating shaft 4. By providing the first bearing 19, the smoothness of rotation between the connecting block and the door seat 1 can be effectively improved, and the contact surface between the connecting block 3 and the door seat 1 can be effectively protected from rigid frictional damage.

[0020] In a preferred embodiment of the dual-axis protective hinge of this invention, as shown in the figure, a second bearing 20 is provided on the second rotating shaft 5 at a position between the connecting block 3 and the shaft platform 11 of the fixed seat 2. The connecting block 3 and the fixed seat 2 are hinged together by the second rotating shaft 5. By providing the second bearing 20, the smoothness of rotation between the connecting block 3 and the fixed seat 2 can be effectively improved, and the contact surface between the connecting block 3 and the fixed seat 2 can be effectively protected from rigid frictional damage.

[0021] In a preferred embodiment of the dual-axis protective hinge of this utility model, as shown in the figure, the connecting block 3 has a first adjusting bolt hole 16 on the rear side of the first rotating shaft 4. A first adjusting bolt is installed in the first adjusting bolt hole 16, and the end of the first adjusting bolt abuts against the bottom surface of the central groove 8 of the door seat 1. By adjusting the locking depth of the first adjusting bolt, the included angle between the connecting block 3 and the door seat 1 can be effectively controlled, which is used to fine-tune the sealing degree of the door panel during actual use, resulting in better door panel sealing performance.

[0022] In a preferred embodiment of the dual-axis protective hinge of this utility model as described above, the connecting block 3 is also provided with a second adjusting bolt hole 17 on the front side of the first rotating shaft 4. A second adjusting bolt is provided in the second adjusting bolt hole 17, and the end of the second adjusting bolt abuts against the bottom surface of the central groove 8 of the door seat 1. The presence of adjusting bolts on both sides of the first rotating shaft 4 improves the stability of the relative fixation between the connecting block 3 and the door seat 1.

[0023] In a preferred embodiment of the dual-axis protective hinge of this invention as described above, at least two third adjusting bolt holes 18 are provided on the fixing base 2 between the plurality of second fixing holes 13. A third adjusting bolt is installed in each of the third adjusting bolt holes 18, and the end of the third adjusting bolt abuts against the outer surface of the plasma sealing cavity wall. By providing the third adjusting bolts, the angle between the fixing plate and the cavity wall can be adjusted, indirectly providing a greater range of motion for adjusting the angle between the connecting block 3 and the door seat 1.

[0024] This utility model features a dual-axis protective hinge specifically designed for connecting the cavity and cavity door of large plasma cleaning equipment. The fixed base 2 and the door seat are connected via a dual-axis mechanism and a connecting block 3, allowing the door panel fixed to the door seat to rotate stably within a range of 90-270 degrees. Furthermore, the predetermined length of the connecting block 3 prevents the side of the door panel from colliding with the vacuum cavity wall during rotation, avoiding damage to the cavity door, especially large and heavy ones, caused by scraping and squeezing against the cavity wall. It also better supports the weight of the cavity door, improving the stability of opening and closing, the safety of operation, and the sealing adaptability after closing.

[0025] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. A biaxial protective hinge, characterized in that, The device includes a fixed base, a door seat, and a connecting block. The door seat has a central groove connecting the front end and the rear end. Fixed protrusions are provided on both sides of the central groove. Fixed holes are provided through the fixed protrusions. Bolts are inserted through the fixed holes and the bolts lock the door seat to the outer edge of the door panel. The two fixed protrusions have first shaft holes extending along the left and right sides of the fixed base and aligned. First rotating shafts are inserted into the first shaft holes. The rear end of the fixed seat is provided with a rotating groove that extends through the thickness direction of the door seat. A shaft platform is provided on both sides of the rotating groove. The two shaft platforms are provided with second shaft holes that extend along the left and right sides of the fixed seat and are aligned. A second rotating shaft passes through the second shaft hole. The first rotating shaft is parallel to the second rotating shaft. The fixed seat is provided with multiple second fixing holes. The fixed seat is fixed to the outer surface of the plasma sealing cavity wall by bolts passing through the second fixing holes. The connecting block is a plate whose width matches the width of the central groove and the rotating groove. The connecting block has a front axle hole and a rear axle hole at both ends. The second rotating shaft passes through the front axle hole, and the first rotating shaft passes through the rear axle hole. When the door seat and the fixed seat form a 180-degree angle, the distance between the rear end of the fixed seat's axle platform and the front end of the corresponding door seat's boss is greater than half the thickness of the axle platform.

2. The biaxial protective hinge as described in claim 1, characterized in that, The first bearing is provided on the first rotating shaft at the position between the connecting block and the boss of the door seat.

3. The biaxial protective hinge as described in claim 2, characterized in that, The second rotating shaft is provided with a second bearing at a position between the connecting block and the fixed seat.

4. The biaxial protective hinge as described in claim 3, characterized in that, The connecting block has a first adjusting bolt hole on the rear side of the first rotating shaft, and a first adjusting bolt is provided in the first adjusting bolt hole. The end of the first adjusting bolt abuts against the bottom surface of the central groove of the door seat.

5. The biaxial protective hinge as described in claim 4, characterized in that, The connecting block is also provided with a second adjusting bolt hole on the front side of the first rotating shaft. A second adjusting bolt is provided in the second adjusting bolt hole, and the end of the second adjusting bolt abuts against the bottom surface of the central groove of the door seat.

6. The biaxial protective hinge as described in claim 5, characterized in that, At least two third adjusting bolt holes are provided on the fixing base between multiple second fixing holes. A third adjusting bolt is provided in the third adjusting bolt hole, and the end of the third adjusting bolt abuts against the outer surface of the plasma sealing cavity wall.

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