Storage rack for salt spray test of metal fastener

Abstract

The utility model discloses a commodity shelf for a salt spray test of a metal fastener, which belongs to the technical field of material analysis equipment, and comprises a commodity tool with an opening at the upper end, a plurality of pairs of limiting mechanisms I which are symmetrically arranged and distributed at equal intervals are arranged on the inner side wall of the commodity tool, and the limiting mechanisms I are arranged on the inner side wall of the commodity tool. According to the utility model, the special limiting mechanism is designed to ensure that nuts, gaskets, bolts and other fasteners are placed stably, so that the nuts, the gaskets, the bolts and other fasteners are effectively prevented from rolling and falling off in the test process, confusion among different batches of products is avoided, and the requirement that a large batch of fasteners are subjected to salt spray tests at the same time can be met; and meanwhile, when the detected piece is taken out for detailed inspection and analysis, the detected piece does not need to be directly touched, so that a corrosion layer or a protective film on the surface of the detected piece is prevented from being damaged, the actual corrosion resistance of the fastener can be truly reflected, and the accuracy of a test result is improved.

Description

Technical Field

[0001] This utility model relates to the field of material analysis equipment technology, and more specifically, to a rack for salt spray testing of metal fasteners. Background Technology

[0002] A key issue in salt spray testing of metal fasteners is the lack of specially designed shelves for the proper storage and retrieval of bolts, nuts, washers, and other fasteners. Currently available shelves often fail to adequately consider the specific needs of these small metal parts, leading to a series of challenges in practical operation.

[0003] First, ordinary shelves do not have dedicated limiting components for fasteners, which makes it easy for fasteners to roll and fall off. This is especially true when conducting large-scale testing of the same product from different batches, which can easily lead to confusion and cannot meet the requirement of conducting salt spray tests on a large number of fasteners at the same time.

[0004] Secondly, when it is necessary to remove the test piece from the shelf for detailed inspection and analysis, the existing design often makes it difficult to avoid touching the test piece. Touching the test piece can easily damage the corrosion layer or protective film on its surface. In salt spray tests, the state of the corrosion layer and protective film is an important indicator for evaluating the corrosion resistance of fasteners. Once these key parts are damaged, it may not only accelerate the corrosion process, but also cause the test results to deviate and fail to accurately reflect the actual corrosion resistance of the fasteners. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a rack for salt spray testing of metal fasteners. It can meet the needs of simultaneous salt spray testing of a large number of fasteners, and when the fasteners being tested are picked up and put down, the corrosion layer and protective film on their surface will not be damaged, thereby ensuring the accuracy of the test results.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A rack for salt spray testing of metal fasteners includes a fixture with an open top. Multiple pairs of symmetrically arranged and equally spaced limiting mechanisms are provided on the inner wall of the fixture. A second limiting mechanism is provided at the bottom inner end of the fixture. Each limiting mechanism includes a positioning side rod disposed on the inner wall of the fixture. A limiting ring is fixedly connected to the outer end of the positioning side rod, and a limiting ball is movably connected to the outer end of the positioning side rod. The bottom end of the limiting ball abuts against the upper surface of the limiting ring, and a sleeve is fixedly connected to the top end of the limiting ball. Adjacent limiting balls... A connecting pipe is fixedly connected between the two outermost limiting balls. Each of the outermost pairs of limiting balls has a lifting part fixedly connected to one end. Nuts and washers are respectively fitted onto the outer ends of the sleeves. The limiting mechanism includes a positioning base plate set at the bottom of the inner end of the storage fixture. The upper end of the positioning base plate has a continuously arranged U-shaped groove and a slot. A storage rack with a matching shape is movably connected to the U-shaped groove and the slot. A storage groove is set on the storage rack. Bolts are placed on the storage groove. Lifting parts are fixedly connected to the upper end of the storage rack and on both the left and right sides.

[0010] Furthermore, the positioning side rod is a circular rod, and the inner sides of the limiting ball and the sleeve are both provided with through holes larger than the diameter of the positioning side rod. The bottom surfaces of the nut and the washer are both in contact with the limiting ball.

[0011] Furthermore, both the positioning side rod and the positioning base plate are inclined, the U-shaped groove is an inclined groove, the shape of the storage groove matches it, and the end of the bolt with the screw head is placed on the upper side of the storage groove, with the screw head abutting against one side wall of the positioning base plate.

[0012] Furthermore, the placement height of the nuts, washers, and bolts all have a height difference with the inner bottom end of the storage fixture, and the inner bottom end of the storage fixture is provided with drainage holes distributed in a rectangular array.

[0013] Furthermore, the positioning side rod, limiting ball, positioning base plate, and shelf are all made of salt spray resistant and corrosion resistant plastic injection molding.

[0014] 3. Beneficial effects

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] (1) This solution ensures that fasteners such as nuts, washers and bolts are placed stably by designing a dedicated limiting mechanism, effectively preventing them from rolling and falling during the test, avoiding confusion between different batches of products, and meeting the needs of large batches of fasteners to undergo salt spray testing at the same time.

[0017] (2) This method ensures that when the tested parts are removed for detailed inspection and analysis, there is no need to directly touch the tested parts, thereby avoiding damage to the corrosion layer or protective film on their surface, and can truly reflect the actual corrosion resistance of the fasteners, thus improving the accuracy of the test results. Attached Figure Description

[0018] Figure 1 This is a side sectional view of the present invention;

[0019] Figure 2 This is a schematic diagram of the positioning base plate in this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the limiting ball, sleeve, connecting tube and lifting part in this utility model.

[0021] Explanation of the labels in the diagram:

[0022] 1. Storage fixture; 101. Drainage hole; 2. Positioning side rod; 3. Limiting ring; 4. Limiting ball; 401. Sleeve; 402. Connecting pipe; 403. Lifting part one; 5. Nut; 6. Washer; 7. Positioning base plate; 701. U-shaped groove; 702. Card slot; 8. Shelf; 801. Storage slot; 802. Lifting part two; 9. Bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example 1:

[0027] Please see Figure 1-3 A storage rack for salt spray testing of metal fasteners includes a storage fixture 1 with an open top, multiple pairs of symmetrically arranged and equally spaced limiting mechanisms 1 are provided on the inner side wall of the storage fixture 1, and a limiting mechanism 2 is provided at the inner bottom end of the storage fixture 1.

[0028] Please see Figure 1 and Figure 3 The limiting mechanism includes a positioning side rod 2 disposed on the inner wall of the storage fixture 1. A limiting ring 3 is fixedly connected to the outer end of the positioning side rod 2, and a limiting ball 4 is movably connected to the outer end of the positioning side rod 2. The bottom end of the limiting ball 4 abuts against the upper surface of the limiting ring 3. A sleeve 401 is fixedly connected to the top end of the limiting ball 4. A nut 5 and a washer 6 are respectively fitted onto the outer end of the sleeve 401. The positioning side rod 2 is an inclined circular rod. This shape ensures that the nut 5 or washer 6 is stably hung on the positioning side rod 2 and will not slip off. Both the inner sides of the limiting ball 4 and the sleeve 401 have through holes larger than the diameter of the positioning side rod 2, facilitating the fitting of the limiting ball 4 onto the positioning side rod 2. The bottom surfaces of the nut 5 and washer 6 are in contact with the limiting ball 4. Because the limiting ball 4 is spherical, this shape ensures that the limiting ball 4 and the sleeve... Nuts 5 and washers 6 of various sizes can be placed on 401. At the same time, this shape ensures that the contact surface between the nuts 5 and washers 6 and the limiting balls 4 is small, so that the nuts 5 and washers 6 can have more full contact with salt spray and conduct more realistic corrosion simulation, thereby reducing test errors. Users can mark different colors on multiple limiting balls 4 to distinguish which batch of nuts 5 or washers 6 are placed there. A connecting tube 402 is fixedly connected between two adjacent limiting balls 4. The connecting tube 402 is used to connect a whole row of limiting balls 4 in series. The outermost pair of limiting balls 4 are fixedly connected to the ends of the opposite ends. By lifting the pair of lifting parts 403, multiple limiting balls 4 along with the nuts 5 or washers 6 placed on them can be picked up and put down together.

[0029] Please see Figure 1-2The second limiting mechanism includes a positioning base plate 7 located at the bottom of the storage fixture 1. The upper end of the positioning base plate 7 has a continuously arranged U-shaped groove 701 and a slot 702. A storage rack 8, matching the shape of the U-shaped groove 701 and slot 702, is movably connected to the storage rack 8. The storage rack 8 has a storage slot 801, on which a bolt 9 is placed. The positioning base plate 7 is angled, and the U-shaped groove 701 is an inclined groove matching the shape of the storage slot 801. One end of the bolt 9 with the screw head is placed on the upper side of the storage slot 801. When placed in this position, the screw head abuts against one side wall of the positioning base plate 7. This angled placement prevents the bolt 9 from falling off the storage slot 801, ensuring stable placement. Different colors can be used to mark the various storage slots 801 to distinguish which batch of bolts 9 are placed there. The upper part of the storage rack 8 and the left and right sides are fixedly connected to the lifting part 2 802. By lifting the pair of lifting parts 2 802, the storage rack 8 and the bolts 9 placed on it can be picked up and put down together. In addition, the process of simultaneously picking up and putting down the nut 5 and washer 6 by lifting part 1 403 does not require the external equipment to come into contact with the tested part, thereby effectively avoiding damage to the corrosion layer or protective film on the surface of the tested part, thus improving the accuracy of the test results. The positioning side rod 2, the limiting ball 4, the positioning base plate 7 and the storage rack 8 are all made of salt spray resistant and corrosion resistant plastic injection molding, which can effectively extend the service life of this device.

[0030] Please see Figure 1 The placement height of nuts 5, washers 6, and bolts 9 is different from the inner bottom of the fixture 1. The inner bottom of the fixture 1 is provided with drainage holes 101 arranged in a rectangular array. This setting can prevent excessive salt water from accumulating at the bottom of the fixture 1 during the test, ensure that nuts 5, washers 6, and bolts 9 are not immersed in salt water, avoid abnormal corrosion processes, and ensure the accuracy of test results.

[0031] Working principle: When using this rack to conduct a salt spray test on the metal fasteners to be tested, first, place the nut 5 or washer 6 on the outer end of the sleeve 401, and place the end of the bolt 9 with the screw head on the upper side of the storage slot 801. Then, connect the limiting ball 4 with the positioning side rod 2 through the lifting part 403, and place the multiple nuts 5 or washers 6 above it. Then, connect the rack 8 with the U-shaped groove 701 and the slot 702 through the lifting part 802, and place the multiple bolts 9 above it. After the test, connect the rack 8 with the lifting part 403 and the lifting part 802. Then, the metal fasteners to be tested can be removed together. Compared with the prior art, this utility model ensures the stable placement of fasteners such as nuts 5, washers 6, and bolts 9 by designing a special limiting mechanism, effectively preventing them from rolling and falling during the test, avoiding confusion between different batches of products, meeting the needs of simultaneous salt spray testing of large batches of fasteners, and ensuring that when removing the tested parts for detailed inspection and analysis, there is no need to directly touch the tested parts, thereby avoiding damage to the corrosion layer or protective film on their surface, and truly reflecting the actual corrosion resistance of the fasteners, improving the accuracy of the test results.

[0032] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A storage rack for salt spray testing of metal fasteners, comprising a storage fixture (1) with an opening at the top, characterized in that: The inner sidewall of the storage fixture (1) is provided with multiple pairs of symmetrically arranged and equally spaced limiting mechanisms, and the inner bottom end of the storage fixture (1) is provided with a second limiting mechanism. The limiting mechanism includes a positioning side rod (2) set on the inner side wall of the storage fixture (1). The outer end of the positioning side rod (2) is fixedly connected to a limiting ring (3). The outer end of the positioning side rod (2) is movably connected to a limiting ball (4). The bottom end of the limiting ball (4) abuts against the upper surface of the limiting ring (3). The top end of the limiting ball (4) is fixedly connected to a sleeve (401). A connecting tube (402) is fixedly connected between two adjacent limiting balls (4). The outermost pair of limiting balls (4) are fixedly connected to a lifting part (403) at their ends that are far apart from each other. The outer ends of the sleeve (401) are respectively fitted with a nut (5) and a washer (6). The second limiting mechanism includes a positioning base plate (7) set at the bottom of the storage fixture (1). The upper end of the positioning base plate (7) is provided with a continuously arranged U-shaped groove (701) and a slot (702). A storage rack (8) matching the shape is movably connected to the U-shaped groove (701) and the slot (702). A storage groove (801) is provided on the storage rack (8). A bolt (9) is placed on the storage groove (801). A lifting part (802) is fixedly connected to the upper end of the storage rack (8) and at the left and right sides.

2. The rack for salt spray testing of metal fasteners according to claim 1, characterized in that: The positioning side rod (2) is a circular rod. The inner sides of the limiting ball (4) and the sleeve (401) are both provided with through holes larger than the diameter of the positioning side rod (2). The bottom surfaces of the nut (5) and the washer (6) are in contact with the limiting ball (4).

3. The rack for salt spray testing of metal fasteners according to claim 1, characterized in that: The positioning side rod (2) and the positioning base plate (7) are both set at an angle. The U-shaped groove (701) is a groove set at an angle. The shape of the storage groove (801) matches it. The bolt (9) has one end with a screw head placed on the upper side of the storage groove (801), and the screw head abuts against one side wall of the positioning base plate (7).

4. A rack for salt spray testing of metal fasteners according to claim 1, characterized in that: The placement height of the nut (5), washer (6) and bolt (9) is different from the inner bottom of the storage fixture (1), and the inner bottom of the storage fixture (1) is provided with drainage holes (101) arranged in a rectangular array.

5. A rack for salt spray testing of metal fasteners according to claim 1, characterized in that: The positioning side rod (2), the limiting ball (4), the positioning base plate (7), and the shelf (8) are all made of salt spray resistant and corrosion resistant plastic injection molding.

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