An adjustable hinge structure

Abstract

The utility model provides a kind of adjustable hinge structure, including hinge base, connecting block, first loose leaf, loose leaf rotating shaft and second loose leaf, multiple fixed through holes with horizontal adjustment function are set in the front of hinge base, multiple screw holes are set in the side of hinge base, multiple connecting block fixed through holes with horizontal adjustment function are set in the side of connecting block corresponding screw hole, multiple first loose leaf fixed through holes are set in the lower part of connecting block, first loose leaf is connected loose leaf rotating shaft in the side away from cabinet door frame, second loose leaf is rotatably connected with loose leaf rotating shaft by the rotating shaft sleeve of fixed setting and adaptation, multiple door plate connecting through holes are set on second loose leaf, and second loose leaf is fixedly connected with door plate side surface by door plate connecting through hole;The adjustment of the gap between door plate and door frame, the adjustment of the gap between upper and lower door plate can be realized, the requirement of the fitting degree of semiconductor production workshop cabinet door is realized, and installation and disassembly are convenient.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor manufacturing equipment technology, and in particular to an adjustable hinge structure. Background Technology

[0002] In semiconductor manufacturing workshops, cabinets serve as crucial equipment for storing precision components such as wafers and photoresists, as well as production auxiliary materials. The installation accuracy and performance of the cabinet doors have a direct and significant impact on the stability of the production environment and product quality. Semiconductor production demands high levels of cleanliness and airtightness in the workshop. The size of the gaps between the side doors of the cabinet, the fit between the door and the door frame, and the angular accuracy of the door's front in the horizontal direction directly affect the maintenance of the clean environment inside the cabinet, the isolation of contaminants, and the normal operation of the equipment. If the gaps between the side doors of the cabinet are too large, dust and particulate pollutants in the workshop can seep into the cabinet through the gaps, contaminating the stored precision components and affecting the production yield of semiconductor chips. If the door and frame cannot fit tightly, it may compromise the cabinet's sealing performance, leading to uncontrolled internal temperature and humidity and interfering with the storage of environmentally sensitive semiconductor materials. In addition, excessive horizontal angular deviation of the door front can cause the cabinet door to jam when opening and closing, affecting operational efficiency. Frequent jamming and friction may also generate particles, further contaminating the production environment, and may exacerbate the aforementioned sealing problems due to improper closure. Currently, hinge adjustment mechanisms suitable for general scenarios are insufficient to meet the specific requirements of cabinet doors in semiconductor manufacturing workshops. Existing mechanisms lack precision in gap adjustment, making it difficult to control gaps within the minute range required by semiconductor production, and often resulting in situations where cleanroom standards are not met even after adjustment. Regarding the adjustment of the fit between the door and the frame, the existing structure has poor adjustment stability, and is prone to loosening after long-term use or slight vibration, failing to maintain a consistently high level of sealing. For adjusting the horizontal angle of the door front, existing hinges mostly lack precise adjustment structures adapted to semiconductor cabinets. The adjustment process is prone to causing door vibrations, generating particulate contamination, and the adjustment operation is complex, requiring specialized tools and prolonged work, which disrupts the workshop's production rhythm. Therefore, for the use scenario of cabinet doors in semiconductor production workshops, developing a hinge adjustment mechanism that can precisely adjust the gap between side doors, ensure a long-term tight fit between the door and the door frame, and stably achieve fine-tuning of the horizontal angle of the front of the door has become a key technical requirement for ensuring the stability of the semiconductor production environment and improving production efficiency. Utility Model Content

[0003] This utility model provides an adjustable hinge structure for use in the installation of cabinet doors and cabinet frames in semiconductor manufacturing workshops, achieving the required fit of the cabinet doors and enabling precise and rapid cabinet door installation.

[0004] This utility model provides an adjustable hinge structure, comprising: The hinge base, connecting block, first hinge piece, hinge rotation shaft, and second hinge piece are used for connection with the cabinet door frame. The hinge base has multiple base fixing through holes on its front side for lateral adjustment, which fix the hinge base to the cabinet door frame and allow lateral adjustment of the hinge base along the cabinet door frame plane. The hinge base has multiple threaded holes on its side. The connecting block has multiple connecting block fixing through holes on its upper part for lateral adjustment, which fix the connecting block to the hinge base and allow inward and outward adjustment of the connecting block along the cabinet door frame plane. The connecting block has multiple first hinge piece fixing through holes on its lower part for fixing the first hinge piece to the connecting block. The side of the first hinge piece away from the cabinet door frame is connected to the hinge rotation shaft. The second hinge piece is rotatably connected to the hinge rotation shaft via a fixedly installed rotating bushing adapted to the hinge rotation shaft. The second hinge piece has multiple door panel connecting through holes for fixed connection to the side of the door panel.

[0005] As one possible implementation, the base fixing through hole and the connecting block fixing through hole include a first through hole and a second through hole. The diameter of the first through hole and the second through hole in the horizontal direction is greater than the diameter in the vertical direction. The minimum diameter of the first through hole is greater than or equal to the diameter of the screw or bolt used for fixing. The diameter of the first through hole in each direction is smaller than the diameter of the second through hole, so that there is a nut bearing area between the first through hole and the second through hole.

[0006] As one possible implementation, the plurality of threaded holes do not intersect with the base fixing through hole.

[0007] As one possible implementation, the thickness of the hinge base and the connecting block is less than the thickness of the door panel.

[0008] In one possible implementation, the upper part of the hinge rotation shaft is provided with a thread, and after the second hinge piece is rotatably connected to the hinge rotation shaft, a cap with an internal thread is used to seal it; the diameter of the cap is larger than the inner diameter of the rotation shaft sleeve.

[0009] As one possible implementation, washers are provided at the junction of the first and second hinges and at the junction of the second hinge and the cap.

[0010] In one possible implementation, the number of threaded holes is 4-8; the number of base fixing through holes is 2-5; the number of connecting block fixing through holes is 2-4; the number of first hinge plate fixing through holes is 2-4; and the number of door panel connecting through holes is 2-5.

[0011] The adjustable hinge structure provided by this utility model can adjust the gap between the door panel and the door frame, and the gap between the upper and lower door panels, etc., to meet the requirements of the fit of the cabinet door in the semiconductor production workshop. When installing or disassembling, the rotating shaft sleeve is put on / taken off the hinge rotating shaft, which makes installation and disassembly convenient and facilitates fine adjustment of the hinge structure, so as to achieve precise and fast door panel installation. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is an installation diagram of an adjustable hinge structure provided by this utility model; Figure 2 This is a first structural schematic diagram of an adjustable hinge structure provided by this utility model; Figure 3 This is a schematic diagram of the second structure of an adjustable hinge structure provided by this utility model; Figure 4 This is a schematic diagram of the threaded hole and the base fixing through hole of an adjustable hinge structure provided by this utility model; Figure 5 This is a schematic diagram illustrating the installation of an adjustable hinge structure provided by this utility model. Reference numerals: 10 is the hinge base; 11 is the base fixing through hole; 12 is the threaded hole; 20 is the connecting block; 21 is the connecting block fixing through hole; 22 is the first hinge piece fixing through hole; 30 is the first hinge piece; 40 is the hinge rotation shaft; 41 is the cap; 50 is the second hinge piece; 51 is the rotation bushing; 52 is the door panel connecting through hole. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be described in more detail below with reference to the accompanying drawings.

[0015] It should be noted that, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. The described embodiments are some, but not all, embodiments of this utility model. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0017] The following is for reference. Figure 1-5 This invention provides a detailed description of embodiments of an adjustable hinge structure disclosed in this utility model.

[0018] An adjustable hinge structure, see [link / reference] Figure 2 and 3 Includes a hinge base 10 for connection with the cabinet door frame, a connecting block 20, a first hinge piece 30, a hinge rotation shaft 40, and a second hinge piece 50; Reference Figure 1 The diagram illustrates the hinge structure and installation of the cabinet door frame. The hinge base 10 has multiple base fixing through holes 11 on its front side for lateral adjustment. These holes secure the hinge base 10 to the cabinet door frame, allowing for lateral adjustment of the hinge base 10 along the plane of the cabinet door frame. Figure 2 The base fixing through hole 11 shown provides adjustment space for screws or bolts. For example, if the first to third through holes are all moved to the left, the entire door panel can be moved to the left in parallel. The same applies if it is moved to the right. This can be used to adjust the gap and flatness between the left and right door panels. If the first through hole is moved to the left, the second through hole is not moved, and the third through hole is moved to the right, the entire door panel can be offset counterclockwise. This can be used to adjust the gap or flatness between the upper and lower door panels.

[0019] The hinge base has multiple threaded holes 12 on its side, the side refers to Figure 1On the left or right side of the hinge base shown, the side of the connecting block 20 has multiple connecting block fixing through holes 21 with lateral adjustment function corresponding to the threaded holes 12. The connecting block 20 is fixed to the hinge base 10 through the connecting block fixing through holes 21 (e.g., bolts are screwed into the threaded holes 12 through the connecting block fixing through holes; the size of the threaded holes is determined by the specifications of the bolts, etc., based on factors such as the weight of the door panel being supported. The number and position of the threaded holes correspond to the connecting block fixing through holes and the first hinge fixing through hole, which will not be elaborated further here). This allows for the inward and outward adjustment of the connecting block 20 along the cabinet door frame plane and the flatness of the upper and lower edges of the cabinet door with the door frame, similar to the adjustment principle of the base fixing through holes. Figure 2 , 3 In the middle, the first to third through holes of the connecting block fixing through hole 21 move outward or inward at the same time, which realizes the distance between the door panel and the door frame and the door panel is moved away or close, and the sealing gap of the door panel is adjustable. If the first and third through holes move inward and outward respectively, the tilt angle of the door panel in the vertical direction can be adjusted to adapt to the door panel installation requirements of different specifications of door frames and achieve sealed installation, etc.

[0020] like Figure 3 As shown, the lower part of the connecting block 20 has multiple first hinge piece fixing through holes 22. The first hinge piece 30 is fixed to the connecting block 20 through the first hinge piece fixing through holes 22 (e.g., by inserting screws through the pre-drilled fixing holes on the first hinge piece and screwing them into the threaded holes 12 through the first hinge piece fixing through holes 22). The side of the first hinge piece 30 away from the cabinet door frame is connected to the hinge rotation shaft 40. The second hinge piece 50 is rotatably connected to the hinge rotation shaft 40 through a fixedly installed rotation shaft sleeve 51 that is adapted to the hinge rotation shaft 40 (i.e., the rotation shaft sleeve 51 is fitted over the hinge rotation shaft 40). Multiple door panel connecting through holes 52 are provided on the second hinge piece 50. The second hinge piece 50 is fixedly connected to the side of the door panel through the door panel connecting through holes 52.

[0021] Depend on Figure 2 and 3It is known that the base fixing through hole 11 and the connecting block fixing through hole 21 include a first through hole and a second through hole. The diameter of the first and second through holes in the lateral direction is larger than the diameter in the vertical direction, and the minimum diameter of the first through hole is greater than or equal to the diameter of the screw or bolt used for fixing. The diameter of the first through hole in all directions is smaller than the diameter of the second through hole, so that there is a nut bearing area between the first and second through holes. The first and second through holes are designed to allow screws or bolts to be inserted, but their nuts cannot pass through the first through hole. Pressure is applied to the nut bearing area by the nuts, so that the base or connecting block is fixed. The shape of the through hole is designed so that the base or connecting block can still be adjusted laterally after the screw or bolt is partially screwed into the threaded hole 12. After the screw or bolt is fully screwed into the threaded hole 12, the nut plane is lower than or level with the outer plane of the second through hole, that is, the plane of the hinge base or connecting block.

[0022] The upper part of the hinge rotation shaft is threaded. After the second hinge piece is rotatably connected to the hinge rotation shaft, a cap 41 with internal threads is used to seal it. The diameter of the cap is larger than the inner diameter of the rotation shaft sleeve. By setting the cap, the second hinge can be prevented from disengaging and its position can be shifted, making the door panel opening and closing process more stable.

[0023] In addition, washers are provided at the junction of the first and second hinges and at the junction of the second hinge and the cap; the washers can reduce friction, shedding, or noise caused by the opening and closing of the cabinet door between hinges and between hinges and the cap.

[0024] See Figure 4 Multiple threaded holes do not intersect with the base fixing through hole; if they do intersect, it will cause interference after the screw or bolt is screwed in.

[0025] The number of threaded holes, base fixing through holes, connecting block fixing through holes, first hinge plate fixing through holes, and door panel connecting through holes can be increased or decreased as needed based on the weight of the door panel to be supported. In hinge structures commonly used in semiconductor manufacturing, the number of threaded holes is 5-8; the number of base fixing through holes is 2-5; the number of connecting block fixing through holes is 2-4; the number of first hinge plate fixing through holes is 2-4; and the number of door panel connecting through holes is 2-5.

[0026] See Figure 1 and 5 The thickness of the hinge base and connecting block is less than the thickness of the door panel. After the hinge structure is connected to the door frame, it connects to the door panel. Its vertical plane is lower than the door panel plane. After this setting, on the left side of the door panel ( Figure 5 As shown, by setting a panel that is on the same plane as the door panel, the entire cabinet door panel can be made flat. Secondly, the hinge base, connecting block and hinge part can be covered by the panel, making the cabinet more regular and preventing accidental collisions.

[0027] The adjustable hinge structure of this utility model allows for adjustment of the gap between the door panel and the door frame, as well as the gap between the upper and lower door panels. During installation or disassembly, the rotating shaft sleeve is fitted onto / removed from the hinge rotating shaft, making installation and disassembly convenient and facilitating fine-tuning of the entire hinge structure, thus enabling precise and rapid door panel installation.

[0028] 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. An adjustable hinge structure, characterized in that, The system includes a hinge base, a connecting block, a first hinge plate, a hinge rotation shaft, and a second hinge plate for connecting to a cabinet door frame. The hinge base has multiple base fixing through holes on its front side for lateral adjustment, which fix the hinge base to the cabinet door frame and allow for lateral adjustment of the hinge base along the plane of the cabinet door frame. The hinge base has multiple threaded holes on its side, and the connecting block has multiple connecting block fixing through holes on its side corresponding to the threaded holes for lateral adjustment. These connecting block fixing through holes connect the connecting block to the hinge base. The connecting block is fixed and allows for inward and outward adjustment along the cabinet door frame plane. Multiple first hinge plate fixing through holes are provided on the side of the connecting block corresponding to the threaded holes. The first hinge plates are fixed to the connecting block through these first hinge fixing through holes. A hinge rotation shaft is connected to the side of the first hinge plate away from the cabinet door frame. A second hinge plate is rotatably connected to the hinge rotation shaft through a fixedly provided rotation sleeve adapted to the hinge rotation shaft. Multiple door panel connecting through holes are provided on the second hinge plate, through which the second hinge plate is fixedly connected to the side of the door panel.

2. The adjustable hinge structure according to claim 1, characterized in that, The base fixing through hole and the connecting block fixing through hole include a first through hole and a second through hole. The diameter of the first through hole and the second through hole in the horizontal direction is greater than the diameter in the vertical direction. The minimum diameter of the first through hole is greater than or equal to the diameter of the screw or bolt used for fixing. The diameter of the first through hole in each direction is smaller than the diameter of the second through hole, so that there is a nut bearing area between the first through hole and the second through hole.

3. The adjustable hinge structure according to claim 1, characterized in that, The plurality of threaded holes do not intersect with the base fixing through hole.

4. The adjustable hinge structure according to claim 1, characterized in that, The thickness of the hinge base and connecting block is less than the thickness of the door panel.

5. The adjustable hinge structure according to claim 1, characterized in that, The upper part of the hinge rotation shaft is provided with threads. After the second hinge piece is rotatably connected to the hinge rotation shaft, it is sealed with a cap provided with internal threads. The diameter of the cap is larger than the inner diameter of the rotation shaft sleeve.

6. The adjustable hinge structure according to claim 5, characterized in that, Washers are provided at the junction of the first and second loose pages and at the junction of the second loose page and the cap.

7. The adjustable hinge structure according to claim 1, characterized in that, The number of threaded holes is 4-8; the number of base fixing through holes is 2-5; the number of connecting block fixing through holes is 2-4; the number of first hinge plate fixing through holes is 2-4; and the number of door panel connecting through holes is 2-5.

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