Shielding cover testing fixture

Abstract

The utility model discloses a shielding case testing fixture, which relates to the technical field of shielding cases and comprises a base, a limit frame, a first shielding case and a second shielding case, the limit frame is mounted on the surface of a test board, the first shielding case and the second shielding case are mounted inside the limit frame, and connecting pieces are mounted on two sides of the first shielding case and two sides of the second shielding case. Clamping pieces are arranged at the tops of the first shielding case and the second shielding case, each connecting piece comprises connecting rods fixed to the two sides of the second shielding case, a limiting block is fixedly connected to one end, close to the first shielding case, of each connecting rod, a positioning shaft is fixedly connected into each limiting block, and the surface of each positioning shaft is movably sleeved with a triangular clamping block; the triangular clamping block is located in the limiting block and movably connected with the limiting block through a positioning shaft, and the top of the triangular clamping block is fixedly connected with an anti-disengaging column. According to the shielding cover testing fixture provided by the utility model, through the arrangement of the connecting piece and the clamping piece, the whole shielding cover does not need to be disassembled, so that the time and the labor cost can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of shielding covers, in particular to a shielding cover inspection tool. Background Art

[0002] A shielding cover inspection tool is a device used to detect circuit boards and circuit boards. It usually adopts a metal shielding cover structure, which can avoid electromagnetic wave interference and improve the test accuracy. A shielding cover inspection tool is usually a device composed of a shielding cover, a test bed, a test connector, etc.

[0003] Currently, when using a shielding cover inspection tool, generally, the circuit board to be detected is placed in the detection area, and then the shielding cover is installed on the surface of the detection area to cover the circuit board to be detected. After the detection is completed, the shielding cover is separated from the detection area and the detected circuit board is taken out. In this process, when detecting multiple groups of circuit boards, it is necessary to frequently separate and install the shielding cover from the detection area. Therefore, the operator needs to perform repeated and cumbersome operations, which increases the labor of the operator. For this reason, there is an urgent need for a shielding cover inspection tool to solve the above problems. Summary of the Utility Model

[0004] In view of the above problem that the existing frequent separation and installation operations of the shielding cover and the detection area will increase the labor of the operator, the present utility model is proposed.

[0005] Therefore, the purpose of the present utility model is to provide a shielding cover inspection tool, and its purpose is to solve the problem that the frequent separation and installation operations of the shielding cover and the detection area will increase the labor of the operator.

[0006] To solve the above technical problems, the present utility model provides the following technical solution: A shielding cover inspection tool, which includes a base, a test bench installed on the surface of the base, a limit frame installed on the surface of the test bench, a first shielding cover and a second shielding cover installed inside the limit frame, the first shielding cover and the second shielding cover are close to each other, a handle installed on the tops of the first shielding cover and the second shielding cover, connecting pieces are installed on both sides of the first shielding cover and the second shielding cover, engaging pieces are provided on the tops of the first shielding cover and the second shielding cover, the connecting piece includes a connecting rod fixed on both sides of the second shielding cover, one end of the connecting rod and close to the first shielding cover is fixedly connected with a limiting block, a positioning shaft is fixedly connected inside the limiting block, a triangular clamping block is movably sleeved on the surface of the positioning shaft, the triangular clamping block is located inside the limiting block and is movably connected with it through the positioning shaft, a anti-detachment column is fixedly connected to the top of the triangular clamping block, the anti-detachment column is located on the top of the limiting block, and the length of the anti-detachment column is longer than that of the limiting block.

[0007] As a preferred embodiment of the jig for the shielding cover of the present utility model, wherein: on both sides of the second shielding cover and at the bottom of the limiting block, there are fixedly connected bearing plates. One end of the bearing plate is arc-shaped at the bottom of the positioning shaft. The bottom of the triangular clamping block is located on the surface of the bearing plate, and the bearing plate is L-shaped.

[0008] As a preferred embodiment of the jig for the shielding cover of the present utility model, wherein: the connecting member includes L-shaped rods fixed on both sides of the first shielding cover. One end of the L-shaped rod is fixedly connected with a connecting rod. The connecting rod is located on the surface of the bearing plate and inside the triangular clamping block. A sealing member is installed at one end of the first shielding cover.

[0009] As a preferred embodiment of the jig for the shielding cover of the present utility model, wherein: the engaging member includes engaging grooves opened at the tops of the first shielding cover and the second shielding cover. On the surfaces of the two groups of engaging grooves, there are installed iron blocks. An engaging block is installed inside the engaging groove. A magnetic block is installed at the bottom of the engaging block. The magnetic block is magnetically connected with the iron block. A connecting ring is fixedly connected to the surface of the limiting frame.

[0010] As a preferred embodiment of the jig for the shielding cover of the present utility model, wherein: the sealing member includes a sealing plate installed on one side of the first shielding cover. On one side of the second shielding cover and close to the first shielding cover, there is a sealing groove opened. The sealing plate is located inside the sealing groove and is movably connected with it.

[0011] As a preferred embodiment of the jig for the shielding cover of the present utility model, wherein: T-shaped strips are fixedly connected to the bottoms of the first shielding cover and the second shielding cover. Inside the limiting frame, there are opened a T-shaped groove and a sliding groove. The T-shaped groove communicates with the sliding groove and they form a C shape. The T-shaped strip is located inside the T-shaped groove and is movably connected with it. The first shielding cover and the second shielding cover are movably connected with the limiting frame through the sliding groove.

[0012] Advantages of the present utility model:

[0013] 1. By providing the connecting member and the engaging member, not only can the first shielding cover and the second shielding cover be simply and quickly connected and disconnected to facilitate the testing of the circuit board, but also the operation difficulty can be reduced. And when testing the next group of circuit boards, there is no need to disassemble the whole shielding cover, thus saving time and labor costs. By setting the first shielding cover and the second shielding cover to be sliding type, the stability during testing can be improved, and when connecting and disassembling, it is more compact.

[0014] 2. By providing the sealing member, the sealing performance between the first shielding cover and the second shielding cover can be improved, thus ensuring the accuracy and precision of the detection result. Description of the drawings

[0015] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required in the description of the embodiments. Obviously, the attached drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can be obtained based on these drawings. Among them:

[0016] Figure 1 It is a schematic diagram of the overall structure of the jig for the shielding cover of the present utility model.

[0017] Figure 2 It is a schematic diagram of the open state of the first shielding cover and the second shielding cover of the jig for the shielding cover of the present utility model.

[0018] Figure 3 It is a schematic diagram of the structure of the limit frame of the jig for the shielding cover of the present utility model.

[0019] Figure 4 It is a schematic diagram of the structure of the second shielding cover of the jig for the shielding cover of the present utility model.

[0020] Figure 5 It is a display diagram of the structure of some connecting parts of the jig for the shielding cover of the present utility model.

[0021] Figure 6 It is a schematic diagram of the structure of the first shielding cover of the jig for the shielding cover of the present utility model.

[0022] Explanation of reference numerals:

[0023] 1. Base; 2. Limit frame; 3. First shielding cover; 31. Handle; 4. Second shielding cover; 5. Test bench; 6. Connecting part; 61. Connecting rod; 62. Restricting block; 63. Positioning shaft; 64. Triangular clamping block; 65. Anti-disengagement column; 66. Bearing plate; 67. Arc; 68. L-shaped rod; 69. Link; 7. Engaging part; 71. Engaging groove; 72. Iron block; 73. Engaging block; 74. Magnet; 75. Connecting ring; 8. Sealing part; 81. Sealing plate; 82. Sealing groove; 83. T-shaped strip; 84. T-shaped groove; 85. Slide groove. Specific embodiments

[0024] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following will make a detailed description of the specific embodiments of the present utility model in conjunction with the attached drawings of the specification.

[0025] Refer to Figure 1-6, which is the first embodiment of the present utility model, provides a shielding cover inspection tool. This shielding cover inspection tool includes a base 1, a test bench 5 installed on the surface of the base 1, a limit frame 2 installed on the surface of the test bench 5, a first shielding cover 3 and a second shielding cover 4 installed inside the limit frame 2. The first shielding cover 3 and the second shielding cover 4 are close to each other. There are handles 31 installed on the tops of the first shielding cover 3 and the second shielding cover 4. Connecting pieces 6 are installed on both sides of the first shielding cover 3 and the second shielding cover 4, and engaging pieces 7 are provided on the tops of the first shielding cover 3 and the second shielding cover 4;

[0026] The connecting piece 6 includes a connecting rod 61 fixed to both sides of the second shielding cover 4. One end of the connecting rod 61, which is close to the first shielding cover 3, is fixedly connected with a limiting block 62. A positioning shaft 63 is fixedly connected inside the limiting block 62. A triangular clamping block 64 is movably sleeved on the surface of the positioning shaft 63. The triangular clamping block 64 is located inside the limiting block 62 and is movably connected to it through the positioning shaft 63. A retaining post 65 is fixedly connected to the top of the triangular clamping block 64. The retaining post 65 is located on the top of the limiting block 62. The length of the retaining post 65 is longer than that of the limiting block 62, which can prevent the triangular clamping block 64 from completely falling into the limiting block 62. The triangular clamping block 64 is movably connected to the limiting block 62 through the positioning shaft 63, and at the same time, by preventing the triangular clamping block 64 from falling through the retaining post 65, the triangular clamping block 64 can fall into the limiting block 62 by its own gravity to facilitate the connection with the first shielding cover 3.

[0027] On both sides of the second shielding cover 4 and at the bottom of the limiting block 62, there is a bearing plate 66 fixedly connected. One end of the bearing plate 66 and at the bottom of the positioning shaft 63 is provided with an arc 67. The bottom of the triangular clamping block 64 is located on the surface of the bearing plate 66. The bearing plate 66 is L-shaped, which can facilitate the connection with the second shielding cover 4, at the same time, can facilitate the positioning of the connecting rod 69, and is convenient for the connection between the two.

[0028] The connecting piece 6 includes an L-shaped rod 68 fixed to both sides of the first shielding cover 3. One end of the L-shaped rod 68 is fixedly connected with a connecting rod 69. The connecting rod 69 is located on the surface of the bearing plate 66 and inside the triangular clamping block 64. A sealing member 8 is installed at one end of the first shielding cover 3, which can facilitate the positioning of the connecting rod 69 and the connection between the first shielding cover 3 and the second shielding cover 4. Since the bottom of the triangular clamping block 64 and one end of the bearing plate 66 are provided with an arc 67, and the distance between them is greater than the diameter of the connecting rod 69, it is convenient for the clamping of the connecting rod 69.

[0029] The engaging part 7 includes engaging grooves 71 opened at the tops of the first shielding cover 3 and the second shielding cover 4. Iron blocks 72 are installed on the surfaces of the two groups of engaging grooves 71. An engaging block 73 is installed inside the engaging groove 71. A magnetic block 74 is installed at the bottom of the engaging block 73. The magnetic block 74 is magnetically connected to the iron block 72. A connecting ring 75 is fixedly connected to the surface of the limiting frame 2. The two groups of engaging grooves 71 are each half of the engaging block 73. The diameters of both ends of the engaging block 73 are the same, and the middle diameter is slightly smaller, which can facilitate the complete positioning and clamping of the first shielding cover 3 and the second shielding cover 4. Moreover, the connecting ring 75 can facilitate the placement of the engaging block 73, thereby reducing the probability of its easy loss and reducing the floor area.

[0030] The seal 8 includes a sealing plate 81 installed on one side of the first shielding cover 3. A sealing groove 82 is opened on one side of the second shielding cover 4 and close to the first shielding cover 3. The sealing plate 81 is located inside the sealing groove 82 and is movably connected thereto, which can improve the sealing performance between the first shielding cover 3 and the second shielding cover 4, and thus improve the working efficiency.

[0031] T-shaped strips 83 are fixedly connected to the bottoms of the first shielding cover 3 and the second shielding cover 4. A T-shaped groove 84 and a sliding groove 85 are opened inside the limiting frame 2. The T-shaped groove 84 communicates with the sliding groove 85, and the two form a C shape. The T-shaped strip 83 is located inside the T-shaped groove 84 and is movably connected thereto. The first shielding cover 3 and the second shielding cover 4 are movably connected to the limiting frame 2 through the sliding groove 85, which can make the connection between the first shielding cover 3 and the second shielding cover 4 and the limiting frame 2 more stable, and at the same time make them stable during the moving process.

[0032] When starting the operation, such as Figure 2As shown, subsequently, the circuit board to be tested is placed on the surface of the test bench 5. Then, through the handle 31, the first shielding cover 3 and the second shielding cover 4 are moved along the T-shaped slot 84 inside the limiting frame 2 through the T-shaped strip 83, and the first shielding cover 3 and the second shielding cover 4 are moved along the sliding slot 85 inside the limiting frame 2 to make them approach each other until the sealing plate 81 sinks into the sealing groove 82. Subsequently, the connecting rods 69 on both sides of the first shielding cover 3 will contact the bottom of the triangular clamping block 64 through the arc 67 at one end of the bearing plate 66, and continuously make the first shielding cover 3 and the second shielding cover 4 approach each other. When the connecting rod 69 contacts the bottom of the triangular clamping block 64, since one side of the bottom of the triangular clamping block 64 close to the connecting rod 69 is an inclined surface, it will exert a pressure on the triangular clamping block 64, causing it to flip through the positioning shaft 63, so that the anti-disengagement column 65 is disconnected from the limiting block 62 until the connecting rod 69 is located on the surface of the bearing plate 66 and on the side away from the arc 67. At this time, the pressure exerted on the triangular clamping block 64 is cancelled, and the triangular clamping block 64 descends through the positioning shaft 63 by its own gravity until it returns to its original state and its bottom is located on the surface of the bearing plate 66. At this time, the connecting rod 69 is located on the other side of the triangular clamping block 64, that is, its right-angle surface contacts the connecting rod 69, and the preliminary connection of the first shielding cover 3 and the second shielding cover 4 can be completed. The connected state is as shown in Figure 1 As shown, when disconnecting the connection between the first shielding cover 3 and the second shielding cover 4, only need to lift the anti-disengagement column 65 to drive the triangular clamping block 64 and make it away from the bearing plate 66, then the limit on the connecting rod 69 can be cancelled;

[0033] Subsequently, pull the engaging block 73 to disconnect it from the connecting ring 75, and install it on the surface of the engaging groove 71 at the top of the first shielding cover 3 and the second shielding cover 4, make the engaging block 73 completely sink into the engaging groove 71, and make the iron block 72 and the magnet block 74 magnetically connected. At the same time, the engaging block 73 can complete the positioning and connection of the first shielding cover 3 and the second shielding cover 4, and can firmly clamp the sealing plate 81 and the sealing groove 82, thus completing the overall operation;

[0034] This method can not only simply and quickly connect and disconnect the first shielding cover 3 and the second shielding cover 4 to facilitate the testing of the circuit board, but also reduce the operation difficulty. And when testing the next group of circuit boards, there is no need to disassemble the overall shielding cover, thus saving time and labor costs. By setting the first shielding cover 3 and the second shielding cover 4 to be sliding type, the stability during testing can be improved, and when connecting and disassembling, it is more compact; and through the seal 8, the sealing performance between the first shielding cover 3 and the second shielding cover 4 can be improved, thus ensuring the accuracy and precision of the detection results.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A shielding cover inspection tool, comprising a base (1), a test table (5) mounted on the surface of the base (1), a limit frame (2) mounted on the surface of the test table (5), a first shielding cover (3) and a second shielding cover (4) mounted inside the limit frame (2), the first shielding cover (3) and the second shielding cover (4) being close to each other, and a handle (31) mounted on the top of the first shielding cover (3) and the second shielding cover (4), characterized in that: Connecting pieces (6) are installed on both sides of the first shielding cover (3) and the second shielding cover (4), and engaging pieces (7) are provided on the tops of the first shielding cover (3) and the second shielding cover (4); The connecting member (6) comprises a connecting rod (61) fixed on both sides of the second shielding cover (4); one end of the connecting rod (61) and one end close to the first shielding cover (3) is fixedly connected to a limiting block (62); a positioning shaft (63) is fixedly connected inside the limiting block (62); a triangular clamping block (64) is movably sleeved on the surface of the positioning shaft (63); the triangular clamping block (64) is located inside the limiting block (62) and is movably connected to the limiting block via the positioning shaft (63); an anti-slip column (65) is fixedly connected to the top of the triangular clamping block (64); the anti-slip column (65) is located on the top of the limiting block (62); and the length of the anti-slip column (65) is longer than that of the limiting block (62).

2. A shielding cover inspection fixture according to claim 1, characterized in that: A supporting plate (66) is fixedly connected to both sides of the second shielding cover (4) and located at the bottom of the limiting block (62); one end of the supporting plate (66) is arranged in an arc shape (67) at the bottom of the positioning shaft (63); the bottom of the triangular clamping block (64) is located on the surface of the supporting plate (66); and the supporting plate (66) is arranged in an L shape.

3. A shielding cover inspection fixture according to claim 2, characterized in that: The connecting member (6) comprises an L-shaped rod (68) fixed on both sides of the first shielding cover (3), one end of the L-shaped rod (68) is fixedly connected to a connecting rod (69), the connecting rod (69) is located on the surface of the bearing plate (66) and on the inner side of the triangular clamping block (64), and a sealing member (8) is installed at one end of the first shielding cover (3).

4. The shielding cover inspection fixture according to claim 1, characterized in that: The engaging member (7) comprises engaging grooves (71) provided on the top of the first shielding cover (3) and the second shielding cover (4); iron blocks (72) are installed on the surfaces of the two groups of the engaging grooves (71); engaging blocks (73) are installed inside the engaging grooves (71); a magnetic block (74) is installed at the bottom of the engaging block (73); the magnetic block (74) is magnetically connected to the iron block (72); and a connecting ring (75) is fixedly connected to the surface of the limiting frame (2).

5. The shielding cover inspection fixture according to claim 3, characterized in that: The sealing member (8) comprises a sealing plate (81) mounted on one side of the first shielding cover (3); a sealing groove (82) is provided on one side of the second shielding cover (4) and close to the first shielding cover (3); the sealing plate (81) is located inside the sealing groove (82) and is movably connected thereto.

6. A shielding cover inspection tool according to claim 5, characterized in that: The bottoms of the first shielding cover (3) and the second shielding cover (4) are fixedly connected with a T-shaped bar (83); the interior of the limiting frame (2) is provided with a T-shaped slot (84) and a slide slot (85); the T-shaped slot (84) and the slide slot (85) are connected to each other and form a C shape; the T-shaped bar (83) is located inside the T-shaped slot (84) and is movably connected thereto; the first shielding cover (3) and the second shielding cover (4) are movably connected to the limiting frame (2) via the slide slot (85).

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