Goods shelf dust cover

Abstract

The utility model discloses a goods shelf dust cover in the field of semiconductor goods shelves, which comprises a goods shelf body, a plurality of horizontally placed shelf boards which are sequentially arranged and distributed from top to bottom are arranged among four outer supporting rods, side stop levers are longitudinally arranged between two outer supporting rods which correspond to each other front and back, and a rear stop lever is transversely arranged between two outer supporting rods in the rear row. A shielding cover body is arranged corresponding to the placing shelf board on the top layer, the shielding cover body is supported on the rear stop lever and the two side stop levers, the shielding cover body comprises a main cover body, L-shaped movable cover bodies are connected to the left side and the right side of the main cover body, outer end plates are arranged at the outward ends of the movable cover bodies, rear positioning buckles are arranged at the bottom of the main cover body, and the outer end plates are connected to the left side and the right side of the main cover body. The bottom of the outer end plate is provided with a side positioning buckle. According to the utility model, the risk that the IC chip is polluted by impurity particles can be reduced; the pollution wiping action can be reduced for inspectors, and the working efficiency of the inspectors is improved; and product complaint abnormity is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of semiconductor shelves, and particularly relates to a shelf dust cover. Background Art

[0002] In the prior art, semiconductor wafers are fixed on an iron frame by adhesive film, and the cutting machine cuts the wafer into several small IC particles. Each IC chip product on the iron frame adhesive film needs to be optically inspected. After automatic optical inspection (AOI), each iron frame is placed in a wafer boat box, and the wafer boat box is placed on the shelf. The top layer of the shelf is exposed to the air, which is easy to cause secondary pollution, increasing the workload of the inspectors and requiring frequent wiping of pollution. Placing IC products on the top of the shelf has the following disadvantages: 1. The top layer of the crystal picking shelf, after the product is placed, the particles in the air are easy to fall on the IC products to be processed, causing secondary pollution of the products; 2. Increase the workload of the inspectors and affect work efficiency; 3. Products that have not been inspected may be contaminated, but cannot be discovered, and flow to the client, causing customer complaints. Utility Model Content

[0003] The utility model aims to provide a shelf dust cover, which can reduce the risk of IC chips being contaminated by foreign particles; inspectors can reduce the wiping contamination action and improve the work efficiency of inspectors; and avoid abnormal product complaints caused by secondary contamination.

[0004] The purpose of the utility model is achieved as follows: a dust cover for a shelf comprises a shelf body, wherein the shelf body comprises four vertical outer support rods forming a rectangle, a plurality of horizontally placed layer plates arranged in sequence from top to bottom are arranged between the four outer support rods, side baffles are longitudinally arranged between the two corresponding front and rear outer support rods, a rear baffle is transversely arranged between the two outer support rods located in the rear row, a shielding cover body is provided corresponding to the placement layer plates on the top layer, the shielding cover body is supported on the rear baffle and two side baffles, the shielding cover body comprises a main cover body, the main cover body is L-shaped, the left and right sides of the main cover body are connected to L-shaped movable cover bodies, an outer end plate is arranged at the outward end of the movable cover body, a rear positioning buckle is provided at the bottom of the main cover body, a side positioning buckle is provided at the bottom of the outer end plate, the rear positioning buckle is arranged corresponding to the rear baffle, and the two side positioning buckles are arranged corresponding to the two side baffles respectively.

[0005] When the utility model is used, the position of the movable cover body is adjusted according to the length of the shelf, so that the length of the shielding cover body is adapted to the length of the shelf, and then the side positioning buckles on the outer end plates of the movable cover body on both sides are fixed to the side blocking rods, and the rear positioning buckles of the main cover body are fixed to the rear blocking rods to complete the installation of the dust cover, so as to achieve the function of blocking the IC chip for protection. Compared with the prior art, the beneficial effect of the utility model is that the dust cover is installed on the top layer of the shelf, and particles such as metal impurities fall on the dust cover, which can prevent the impurity particles from affecting the products on the top layer of the shelf, effectively prevent the products from being contaminated twice, improve the work efficiency of the inspectors, and avoid the risk of customer complaints.

[0006] As a further improvement of the utility model, the main cover body has two L-shaped guide grooves symmetrically arranged in the transverse direction, and the two movable covers are respectively inserted into the two guide grooves, and the movable covers are movably connected with the corresponding guide grooves. The movable covers can slide in the transverse direction to adjust the position to adapt to the length of the shelf.

[0007] In order to prevent the movable cover body from being separated from the main cover body, the movable cover body includes a horizontal portion and a vertical portion, and two left-right symmetrical limit blocks are arranged at the ends of the horizontal portion and the vertical portion of the movable cover body located in the guide groove, and four limit grooves corresponding to the limit blocks are arranged transversely on the periphery of each guide groove in the movable cover body, the length of the limit groove is less than the length of the guide groove, and the inner wall of the limit groove is matched with the corresponding limit block. The limit groove limits the movement of the limit block to prevent the movable cover body from being separated from the main cover body.

[0008] As a further improvement of the present invention, the bottom surface of the outer end plate is arranged flush with the bottom surface of the main cover body.

[0009] In order to fix the bottom of the dust cover to the rear bar and side bar on the top of the shelf, the rear positioning buckle and the side positioning buckle are both L-shaped, the cross-section of the rear bar and the side bar is rectangular, the side positioning buckle is fitted on the side bar, the side positioning buckle is fixed to the side bar by bolts, the side bar is provided with screw holes corresponding to the side positioning buckle, and the rear positioning buckle is fitted on the rear bar.

[0010] In order to enhance the stability and firmness of the connection between the dust cover and the shelf, two side positioning buckles are arranged at intervals along the longitudinal direction at the bottom of the outer end plate, and two rear positioning buckles are arranged at intervals along the transverse direction at the bottom of the main cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the shelf body.

[0012] Figure 2 It is the front view of the shielding cover on the shelf body.

[0013] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0014] Figure 4 This is the front view of the shielding cover.

[0015] Figure 5 This is a partial enlarged view of the shielding cover.

[0016] Figure 6 It is a longitudinal cross-sectional view of the main cover body, the movable cover body and the limit block.

[0017] Figure 7 for Figure 6 Enlarged view of point B in the middle.

[0018] Among them, 1 is a shelf body, 1a is an outer support rod, 1b is a placing layer board, 2 is a side baffle, 3 is a rear baffle, 4 is a shielding cover, 4a is a main cover, 4b is a movable cover, 4b1 is a horizontal part, 4b2 is a vertical part, 5 is an outer end plate, 6 is a rear positioning buckle, 7 is a side positioning buckle, 8 is a guide groove, 9 is a limit block, 10 is a limit groove, and 11 is a bolt. DETAILED DESCRIPTION

[0019] like Figure 1-7 As shown, a dust cover for a shelf comprises a shelf body 1, wherein the shelf body 1 comprises four vertical outer support rods 1a forming a rectangle, a plurality of horizontally placed layer plates 1b arranged in sequence from top to bottom are arranged between the four outer support rods 1a, side baffles 2 are longitudinally arranged between the two corresponding outer support rods 1a in the front and rear, a rear baffle 3 is transversely arranged between the two outer support rods 1a in the rear row, a shielding cover body 4 is arranged corresponding to the layer plates 1b on the top layer, the shielding cover body 4 is supported on the rear baffle 3 and two side baffles 2, the shielding cover body 4 comprises a main cover body 4a, the main cover body 4a is L-shaped, the left and right sides of the main cover body 4a are connected with L-shaped movable cover bodies 4b, an outer end plate 5 is arranged at the outward end of the movable cover body 4b, a rear positioning buckle 6 is arranged at the bottom of the main cover body 4a, a side positioning buckle 7 is arranged at the bottom of the outer end plate 5, the rear positioning buckle 6 is arranged corresponding to the rear baffle 3, and the two side positioning buckles 7 are arranged corresponding to the two side baffles 2 respectively.

[0020] Two L-shaped guide grooves 8 symmetrically distributed in the left and right are transversely provided inside the main cover body 4a, and two movable cover bodies 4b are respectively inserted into the two guide grooves 8, and the movable cover body 4b is movably connected with the corresponding guide grooves 8. The movable cover body 4b can slide in the transverse direction to adjust the position to adapt to the length of the shelf. In order to prevent the movable cover body 4b from separating from the main cover body 4a, the movable cover body 4b includes a horizontal portion 4b1 and a vertical portion 4b2. The ends of the horizontal portion 4b1 and the vertical portion 4b2 of the movable cover body 4b located in the guide groove 8 are provided with two left-right symmetrical limit blocks 9. Four limit grooves 10 corresponding to each limit block 9 are transversely provided on the periphery of each guide groove 8 in the movable cover body 4b. The length of the limit groove 10 is less than the length of the guide groove 8, and the inner wall of the limit groove 10 is matched with the corresponding limit block 9. The limit groove 10 limits the movement of the limit block 9 to prevent the movable cover body 4b from separating from the main cover body 4a. The bottom surface of the outer end plate 5 is flush with the bottom surface of the main cover body 4a.

[0021] In order to fix the bottom of the dust cover to the rear stopper 3 and the side stopper 2 on the top of the shelf, the rear positioning buckle 6 and the side positioning buckle 7 are both L-shaped, the cross-sections of the rear stopper 3 and the side stopper 2 are rectangular, the side positioning buckle 7 fits on the side stopper 2, the side positioning buckle 7 is fixed to the side stopper 2 by bolts 11, the side stopper 2 is provided with screw holes corresponding to the side positioning buckle 7, and the rear positioning buckle 6 fits on the rear stopper 3. In order to enhance the stability and firmness of the connection between the dust cover and the shelf, two side positioning buckles 7 are arranged at intervals along the longitudinal direction at the bottom of the outer end plate 5, and two rear positioning buckles 6 are arranged at intervals along the transverse direction at the bottom of the main cover body 4a.

[0022] When the utility model is used, the position of the movable cover body 4b is adjusted according to the length of the shelf, so that the length of the shielding cover body 4 is adapted to the length of the shelf, and then the side positioning buckles 7 on the outer end plates 5 of the movable cover body 4b on both sides are fixed to the side blocking rods 2, and the rear positioning buckles 6 of the main cover body 4a are fixed to the rear blocking rods 3 to complete the installation of the dust cover, so as to achieve the function of blocking the IC chip for protection. The utility model installs a dust cover on the top layer of the shelf, and particles such as metal impurities fall on the dust cover, which can prevent the impurity particles from affecting the products on the top layer of the shelf, effectively prevent the products from being contaminated twice, improve the working efficiency of the inspectors, and avoid the risk of customer complaints.

[0023] The present utility model is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present utility model, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present utility model.

Claims

1. A shelf dust cover, comprising a shelf body, wherein the shelf body comprises four vertical outer support rods forming a rectangle, a plurality of horizontally placed layers arranged in sequence from top to bottom are arranged between the four outer support rods, side bars are longitudinally arranged between two corresponding outer support rods in the front and rear, and a rear bar is transversely arranged between two outer support rods in the rear row, characterized in that: A shielding cover body is provided corresponding to the placement layer board on the top layer, and the shielding cover body is supported on the rear block rod and two side block rods. The shielding cover body includes a main cover body, and the main cover body is L-shaped. L-shaped movable cover bodies are connected to the left and right sides of the main cover body, and an outer end plate is provided at the outward end of the movable cover body. A rear positioning buckle is provided at the bottom of the main cover body, and a side positioning buckle is provided at the bottom of the outer end plate. The rear positioning buckle is provided corresponding to the rear block rod, and the two side positioning buckles are respectively provided corresponding to the two side block rods.

2. The shelf dust cover according to claim 1, characterized in that: Two L-shaped guide grooves symmetrically distributed left and right are transversely arranged inside the main cover body, and the two movable cover bodies are respectively inserted into the two guide grooves, and the movable cover bodies are movably connected with the corresponding guide grooves.

3. The shelf dust cover according to claim 2, characterized in that: The movable cover body includes a horizontal part and a vertical part. Two left-right symmetrical limit blocks are arranged at the ends of the horizontal part and the vertical part of the movable cover body located in the guide groove. Four limit grooves corresponding to the limit blocks are arranged horizontally in the outer periphery of each guide groove of the movable cover body. The length of the limit groove is less than the length of the guide groove, and the inner wall of the limit groove is matched with the corresponding limit block.

4. A shelf dust cover according to claim 2 or 3, characterized in that: The bottom surface of the outer end plate is flush with the bottom surface of the main cover body.

5. A shelf dust cover according to any one of claims 1 to 3, characterized in that: The rear positioning buckle and the side positioning buckle are both L-shaped, the cross-sections of the rear block rod and the side block rod are rectangular, the side positioning buckle is attached to the side block rod, the side positioning buckle is fixed to the side block rod by bolts, the side block rod is provided with screw holes corresponding to the side positioning buckle, and the rear positioning buckle is attached to the rear block rod.

6. A shelf dust cover according to any one of claims 1 to 3, characterized in that: Two side positioning buckles are arranged at intervals along the longitudinal direction at the bottom of the outer end plate, and two rear positioning buckles are arranged at intervals along the transverse direction at the bottom of the main cover body.

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