Photomask box structure

Abstract

A photomask box structure includes an upper shell, a lower shell, and a snap-fit ​​structure. The upper shell covers the lower shell, and the snap-fit ​​structure is provided inside the lower shell. The snap-fit ​​structure includes a turntable, two snap-fit ​​members, two positioning posts, and two elastic members. The turntable has two protrusions on its edge, and recesses are formed at the edge positions of the protrusions. Each snap-fit ​​member is pivotally connected to the turntable and inserted into a side plate of the lower shell. The two positioning posts are located at the edge of the turntable. The two elastic members connect the turntable and the lower shell. When the snap-fit ​​structure is in the open state, the two elastic members pull the two recesses of the turntable back to the positions of the two positioning posts, closing the snap-fit ​​structure. The two positioning posts also fix the turntable in place to prevent the lower shell from detaching from the upper shell due to vibration during use.

Claims

1. A photomask box structure, comprising: an upper housing (1); a lower housing (2), the upper housing (1) covering the lower housing (2), and the lower housing (2) having a lower housing top plate (21) and a lower housing side plate (22), the lower housing side plate (22) being arranged around the lower housing top plate (21) such that a snap-fit ​​receiving space (24) is formed between the lower housing top plate (21) and the lower housing side plate (22); and a snap-fit ​​structure (3) disposed within the snap-fit ​​receiving space (24) of the lower housing (2), the snap-fit ​​structure (3) comprising: A turntable (34) has a central position (341) pivotally connected to the lower surface (21b) of the top plate of the lower housing (21), and has two protrusions (343) on one edge of the turntable (34), and the two protrusions (343) are respectively located on both sides of the edge of the turntable (34), and the two protrusions (343) are respectively recessed in two grooves (3431) at the edge position; two fasteners (31), one end of each fastener (31) is pivotally connected to the turntable (34), and the other end of each fastener (31) is inserted into the side plate (22) of the lower housing, and each fastener (31) is moved away from or inserted into the side plate (22) of the lower housing by the rotation of the turntable (34); Two positioning posts (33) are disposed on the lower surface (21b) of the top plate. When the lower housing (2) is in a closed state, the two positioning posts (33) are located in the two grooves (3431) of the turntable (34); and two elastic members (35), a first elastic end (351) of each elastic member (35) is connected to the turntable (34), and a second elastic end (352) of each elastic member (35) is connected to the lower surface (21b) of the top plate, for pulling the two grooves (3431) of the turntable (34) back to the position of the two positioning posts (33), and then fixing the turntable (34) by the two positioning posts (33) to prevent the lower housing (2) from detaching from the upper housing (1) due to vibration when the photomask structure (100) is in use.

2. The photomask box structure as described in claim 1, wherein the turntable (34) of the snap-fit ​​structure (3) has two collapsible receiving grooves (344) at the positions of the two protrusions (343), the two collapsible receiving grooves (344) being used to make the two positioning pins (33) more easily snap into the two grooves (3431) of the turntable (34).

3. The photomask box structure as described in claim 1, wherein each of the latching members (31) of the latching structure (3) is a pivot end (311) connecting the end of the turntable (34) of the latching structure (3), and the turntable (34) of the latching structure (3) has two grooves (342), and each groove (342) extends from a position near the edge of the turntable (34) toward the center position (341) of the turntable (34), and defines a line of symmetry, which extends from the edge of the turntable (34), through the center position (341) of the turntable (34) to the edge of the turntable (34) on the other side, and the two grooves (342) are located on both sides of the line of symmetry.

4. The photomask box structure as described in claim 1, wherein each of the latching members (31) of the latching structure (3) is inserted into the other end of the lower housing side plate (22) of the lower housing (2) and has two latching portions (312), and when the lower housing (2) is in the closed state, the two latching portions (312) of each latching member (31) pass through the lower housing side plate (22) and are inserted into the upper housing (1), so that the upper housing (1) and the lower housing (2) are fixed together with each other.

5. The photomask box structure as described in claim 4, wherein each of the two latching portions (312) of each latching member (31) of the latching structure (3) is provided with two connecting members (313), and the two connecting members (313) are used to connect each latching member (31) to the lower surface (21b) of one of the top plates of the lower housing top plate (21).

6. The photomask box structure as described in claim 1, wherein each of the latching members (31) of the latching structure (3) has at least one limiting groove (314), and a limiting member (32) is provided in the limiting groove (314), and the limiting member (32) is connected to the lower surface (21b) of the top plate of the lower housing (2).

7. The photomask box structure as described in claim 1, wherein the upper housing (1) has an upper housing top plate (11) and an upper housing side plate (12), the upper housing side plate (12) being arranged around the upper housing top plate (11) such that a substrate receiving space (13) is formed between the upper housing top plate (11) and the upper housing side plate (12), and when the upper housing (1) is covered by the lower housing (2), the substrate receiving space (13) is used to receive a substrate.

8. The photomask box structure as described in claim 7, wherein the upper housing (1) has a plurality of fasteners (14) on the upper housing side plate (12), and the lower housing (2) has a plurality of detachable support columns (211) on the upper surface (21a) of the lower housing top plate (21), and the plurality of detachable support columns (211) and the plurality of fasteners (14) are used to fix the substrate located in the substrate receiving space (13).

9. The photomask box structure as described in claim 8, wherein each of the fixing members (14) is disposed on the upper housing side plate (12) of the upper housing (1), and the fixing member (14) extends a fixing arm (141), and each of the detachable support columns (211) has a fixing portion (211a) at one end, and the fixing arm (141) of the plurality of fixing members (14) and the fixing portion (211a) of the plurality of detachable support columns (211) are used to fix a photomask substrate (M).

10. The photomask structure as described in claim 1, wherein the elastic element (35) is a spring.

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