Vacuum door hinge structure

Abstract

The utility model relates to a vacuum door hinge structure which comprises a fixed seat and a movable seat, the fixed seat is connected with the movable seat through an adjusting screw rod, the fixed seat is fixedly connected with a door frame, and a door leaf is hinged to the movable seat. The movable seat slides along the adjusting screw rod to get close to / away from the fixed seat; an adjusting nut is arranged at the tail end of the adjusting screw rod to adjust and limit the maximum distance of the movable seat away from the fixed seat; and an abutting screw rod is arranged on the movable seat, penetrates through the movable seat and abuts against the fixed seat so as to adjust and limit the minimum distance of the movable seat close to the fixed seat. The movable seat of the structure can slide back and forth relative to the fixed seat, so that the hinged end of the door leaf and the door frame does not apply pressure to the rubber frame when the door is closed, and after the door leaf is closed, the door leaf integrally receives extrusion force to move inwards, and uniform pressure is applied to the rubber ring; in addition, the abutting screws can adjust the minimum distance between the hinged ends of the door leaf and the door frame, the door leaf and the door frame can be kept parallel after vacuum sealing door closing, and the sealing degree is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to hinge door field especially relates to a vacuum door hinge structure. BACKGROUND

[0002] In the circuit board production process, P l asma plasma removes glue and needs to be carried out under vacuum environment, and the switch door structure of some plasma devices uses the hinge structure of hinged connection, and this kind of door body connecting structure is tightly closed door body because of needing to carry out vacuum operation, and there is a rubber frame between the door leaf and the door frame, when the door leaf is closed, an inward extrusion force is applied to the door leaf, so that the door leaf extrudes the rubber frame, ensuring the vacuum tight connection of the door leaf and the door frame, but the hinged connection place of the door leaf and the door frame always maintains close to zero distance contact in this process, which makes the door leaf extrude the rubber frame in a scissors type from the hinged end, resulting in uneven extrusion force of the door leaf on the rubber frame when sealing the door, resulting in insufficient vacuum tightness of the door leaf and the door frame, and when the door leaf and the door frame are sealed and fitted, the distance between the hinged end of the door leaf and the door frame is very close and fixed, and the distance between the other end of the door leaf and the other end of the door frame cannot be compressed to the same distance as the hinged end of the door leaf and the door frame after the door is closed, which will cause the door leaf and the door frame to be not parallel, resulting in insufficient vacuum tightness of the door leaf and the door frame. SUMMARY

[0003] In order to overcome the above problems, the utility model provides a vacuum door hinge structure, and the utility model solves the technical problems thereof by adopting the technical scheme of:

[0004] A vacuum door hinge structure, comprising a fixed seat and a moving seat, the fixed seat is connected with the moving seat through an adjusting screw, the fixed seat is fixedly connected with a door frame, and a door leaf is hinged with the moving seat; the moving seat slides along the adjusting screw to approach / away from the fixed seat; an adjusting nut is arranged at the end of the adjusting screw to adjust and limit the maximum distance of the moving seat away from the fixed seat; an abutting screw is arranged on the moving seat, the abutting screw penetrates through the moving seat and abuts against the fixed seat to adjust and limit the minimum distance of the moving seat approaching the fixed seat.

[0005] Further, the adjusting screw is at least two, and the adjusting screws are parallel to each other.

[0006] Further, a abutting groove is arranged at the position of the fixed seat abutting against the abutting screw, and wear-resistant substances are filled in the abutting groove to abut against the abutting screw.

[0007] Further, the door leaf is fixedly connected with an upper hinge piece and a lower hinge piece on the side edge, the bottom end of the upper hinge piece is hinged with the top end of the moving seat, and the top end of the lower hinge piece is hinged with the bottom end of the moving seat, so as to ensure the stability of the hinge.

[0008] Further, the upper hinge and the moving seat, the lower hinge and the moving seat are provided with a hinge rod, and the hinge rod is sleeved with a bearing.

[0009] Further, the fixed seat is "L" type, and the two sides of the "L" type fixed seat are fixedly connected with the two side walls of the door frame perpendicular to each other through screws

[0010] The beneficial effects of the utility model are:

[0011] The structure comprises a fixed seat and a moving seat, the fixed seat is connected with the moving seat through an adjusting screw rod, the fixed seat is fixedly connected with a door frame, and a door leaf is hinged with the moving seat; the moving seat slides along the adjusting screw rod to approach or move away from the fixed seat, so as to adjust the vacuum tightness of the door leaf and the door frame; an adjusting nut is arranged at the end of the adjusting screw rod, so as to adjust and limit the maximum distance of the moving seat from the fixed seat; an abutting screw rod is arranged on the moving seat, the abutting screw rod penetrates through the moving seat and abuts against the fixed seat, so as to adjust and limit the minimum distance of the moving seat from the fixed seat. The moving seat of the structure can slide forward and backward relative to the fixed seat, so that the hinged end of the door leaf and the door frame can not exert pressure on the rubber frame when the door is closed, and after the door leaf is closed, the whole door leaf moves inward under the extrusion force, so as to exert uniform pressure on the rubber ring; in addition, the abutting screw rod can adjust the minimum distance of the hinged end of the door leaf and the door frame, so that the door leaf and the door frame can keep parallel after vacuum sealing, and the sealing degree is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model will be further described in combination with the drawings and specific embodiments, in which:

[0013] Figure 1 is the perspective view and the partial enlarged view of the vacuum door hinge structure;

[0014] Figure 2 is the explosion view of the hinge structure.

[0015] Figure number mark:

[0016] 100, fixed seat; 101, moving seat; 102, adjusting screw rod; 103, adjusting nut; 104, abutting screw rod; 105, abutting groove;

[0017] 200, door frame;

[0018] 300, door leaf; 301, upper hinge; 302, lower hinge; 303, hinge rod; 304, bearing. DETAILED DESCRIPTION

[0019] In order to better understand the purpose, structure and function of the utility model, the specific embodiments of the utility model "a vacuum door hinge structure" will be further described in detail in combination with the drawings.

[0020] Referring toFigure 1 and Figure 2 In the embodiment, the vacuum door hinge structure comprises a fixed seat 100 and a movable seat 101, the fixed seat 100 is connected with the movable seat 101 through an adjusting screw 102, the fixed seat 100 is fixedly connected with a door frame 200, and a door leaf 300 is hinged with the movable seat 101; the movable seat 101 can slide along the adjusting screw 102 to approach or move away from the fixed seat 100, so that when the door leaf and the door frame are vacuum-closed and closely attached, the door leaf 300 is pressed (for example, a pressing device can be arranged) and can slide in parallel as a whole to approach and press the rubber frame between the door leaf 300 and the door frame 200, the rubber frame is uniformly stressed, and the vacuum sealing property in the process of closing the door can be improved; an adjusting nut 103 is arranged at the end of the adjusting screw 102 to adjust and limit the maximum distance of the movable seat 101 moving away from the fixed seat 100, so as to prevent the hinged end of the door leaf 300 and the door frame 200 from being separated; in addition, an abutting screw 104 is further arranged on the movable seat 101, the abutting screw 104 can pass through the movable seat 101 and abut against the fixed seat 100, and is used to adjust and limit the minimum distance of the movable seat 101 approaching the fixed seat 100.

[0021] It should be noted that when the door leaf 300 is closed and the door leaf 300 is forced to slide and press the rubber frame to the door frame 200, the force reaches balance and the vacuum door is closed, at this time, the door leaf 300 and the door frame 200 are not necessarily parallel, because the distance between the movable seat 101 and the fixed seat 100 (i.e. the distance between the hinged ends of the door leaf and the door frame) can be too small, and the minimum distance that can be reached by the non-hinged ends of the door leaf 300 and the door frame 200 after being forced and pressed can be relatively large, so that the distance between the hinged ends of the door leaf 300 and the door frame 200 is small, and the distance between the non-hinged ends of the door leaf 300 and the door frame 200 is large, that is, the door leaf 300 and the door frame 200 are not parallel in the closed state, which will affect the vacuum sealing property of the vacuum door after being closed; at this time, the abutting screw 104 can be adjusted to make the abutting screw 104 further abut against the fixed seat 100, so that the distance between the fixed seat 100 and the movable seat 101 is increased, so that the distance between the hinged ends of the door leaf 300 and the door frame 200 is equal to the distance between the non-hinged ends of the door leaf 300 and the door frame 200, so that the door leaf 300 and the door frame 200 are parallel after the vacuum door is closed, and the vacuum sealing property of the vacuum door is improved.

[0022] Further referring to Figure 2 In the embodiment, in order to ensure the force connection between the movable seat 101 and the fixed seat 100 and prevent the hinged end of the door leaf 300 from being fatigued and the non-hinged end of the door leaf 300 from being drooped in the open door state due to the excessive weight of the door leaf 300, the adjusting screw 102 is at least two, and the adjusting screws 102 are parallel to each other, so as to improve the connection strength between the movable seat 101 and the fixed seat 100.

[0023] More specifically, in the embodiment, the position of the fixed seat 100 abutting against the screw rod 104 is provided with an abutting groove 105, and the abutting groove 105 is filled with wear-resistant material to abut against the screw rod 104, thereby increasing the service life of the fixed seat 100; the wear-resistant material can be a layer of wear-resistant metal coated inside the abutting groove 105, or a wear-resistant metal welded or a wear-resistant rubber filled.

[0024] Further referring to Figure 2 In the embodiment, the door leaf 300 is fixed with an upper hinge 301 and a lower hinge 302 on the side, the bottom end of the upper hinge 301 is hinged with the top end of the moving seat 101, and the top end of the lower hinge 302 is hinged with the bottom end of the moving seat 101, so as to ensure the stability of the hinge between the side of the door leaf 300 and the moving seat 101.

[0025] More specifically, in the embodiment, the upper hinge 301 and the moving seat 101, and the lower hinge 302 and the moving seat 101 are both provided with a hinge rod 303, and the hinge rod 303 is sleeved with a bearing 304, so as to complete the hinge between the door leaf 300 and the moving seat 101, and make the rotation of the door leaf 300 more stable and smooth.

[0026] Further referring to Figure 1 And Figure 2 In the embodiment, the fixed seat 100 is in the shape of "L", and the two sides of the fixed seat 100 in the shape of "L" are fixedly connected with the two side walls of the door frame 200 perpendicular to each other through screws, so as to increase the connection stability and strength between the fixed seat 100 and the door frame 200.

[0027] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model.In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model.Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

[0028] In the description of the utility model, it is necessary to explain, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore it cannot be understood as the limitation of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

Claims

1. A vacuum door hinge structure, characterized by, The application relates to a door hinge, which comprises a fixed seat (100) and a movable seat (101), the fixed seat (100) is connected with the movable seat (101) through an adjusting screw (102), the fixed seat (100) is fixedly connected with a door frame (200), a door leaf (300) is hinged with the movable seat (101); the movable seat (101) slides along the adjusting screw (102) to approach / leave the fixed seat (100); an adjusting nut (103) is arranged at the tail end of the adjusting screw (102) to adjust and limit the maximum distance of the movable seat (101) from the fixed seat (100); an abutting screw (104) is arranged on the movable seat (101), the abutting screw (104) penetrates through the movable seat (101) and abuts against the fixed seat (100) to adjust and limit the minimum distance of the movable seat (101) from the fixed seat (100).

2. The vacuum door hinge structure according to claim 1, wherein The adjusting screw (102) is at least two, and the adjusting screws (102) are parallel to each other.

3. The vacuum door hinge structure according to claim 1, wherein An abutting groove (105) is arranged at the position of the fixed seat (100) abutting against the abutting screw (104), and the abutting groove (105) is filled with wear-resistant substances to abut against the abutting screw (104).

4. The vacuum door hinge structure according to claim 1, wherein Upper hinge pieces (301) and lower hinge pieces (302) are fixed to the side edges of the door leaf (300), the bottom end of the upper hinge piece (301) is hinged with the top end of the movable seat (101), the top end of the lower hinge piece (302) is hinged with the bottom end of the movable seat (101) to ensure the stability of the hinge.

5. The vacuum door hinge structure according to claim 4, wherein Hinge rods (303) are arranged between the upper hinge piece (301) and the movable seat (101) and between the lower hinge piece (302) and the movable seat (101), and bearings (304) are sleeved on the hinge rods (303).

6. The vacuum door hinge structure according to claim 1, wherein The fixed seat (100) is L-shaped, and the two sides of the L-shaped fixed seat (100) are fixedly connected with the two side walls of the door frame (200) which are perpendicular to each other through screws.

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