Weak current engineering detection device

Abstract

The application relates to the technical field of weak current engineering, in particular to a detection equipment for weak current engineering, which comprises a detection box body and a bearing table; the bidirectional screw rod drives bevel gear one to rotate, the bevel gear one drives two bevel gears two to rotate, the two bevel gears two drive two screw rods to rotate at the same time, so that the bidirectional screw rod and the two screw rods rotate at the same time, and then the two sliding blocks symmetrically and uniformly approach or move away in the sliding grooves; the synchronism can ensure that the clamping force of the two side limiting plates on the articles is balanced, the articles are prevented from being inclined due to excessive unilateral stress, or the limiting is prevented from being loose due to insufficient unilateral force; the two sliding blocks in the two sliding grooves drive the limiting plates at the top to approach each other, the limiting plates firmly fix the articles to be detected through mechanical force, the articles are prevented from sliding, tumbling or even falling due to inertia and vibration when the bearing table moves up and down, and the position of the article to be detected is prevented from being deviated when the bearing table moves up.

Description

Technical Field

[0001] This application relates to the technical field of low-voltage engineering, and in particular to a testing device for low-voltage engineering. Background Technology

[0002] Low-voltage electrical engineering is a category of electrical applications. Electrical applications can be divided into two categories based on the strength of the power transmitted: high-voltage and low-voltage.

[0003] A utility model patent with Chinese patent authorization announcement number CN216082862U discloses an intelligent testing device for low-voltage engineering. The device includes a testing box and multiple detectors installed inside the testing box. A testing window is opened on one side of the testing box, and a support platform is installed inside the testing window. The device also includes a switching mechanism for switching between the multiple detectors to achieve various tests on the device to be tested on the support platform. By setting the switching mechanism, the device to be tested can achieve various required tests, which has the advantages of simple operation and convenience.

[0004] The solution also has the following problems: The device adopts a switching mechanism, which can quickly switch between multiple detectors. However, the above solution still has some problems. For example, when the carrier platform of the device moves the test item up and down, it does not limit the test item on the carrier platform. The carrier platform may cause the item to shift due to the inertia of starting and stopping or slight vibration, which will cause the test item to shift and the test data to be distorted. At the same time, dust can enter the bottom of the test chamber through the strip hole, which will aggravate the wear of the screw, shorten its service life, and may also cause the screw to jam or become stuck, affecting the mechanical operation.

[0005] Therefore, in order to solve the above problems, this application provides a testing device for low-voltage engineering. Utility Model Content

[0006] To address the problem that if the object to be tested is not limited, the support platform may shift due to inertia during startup or shutdown or slight vibration, causing the object to be tested to deviate in position, this application provides a testing device for low-voltage engineering.

[0007] This application provides a testing device for low-voltage electrical engineering, comprising a testing housing and a support platform. The support platform is slidably connected to one side of the testing housing, and a limiting mechanism is located at the top of the support platform. The limiting mechanism includes: The top of the support platform is provided with two sliding grooves, which are arranged in a cross pattern. One of the sliding grooves extends laterally, and the other extends longitudinally. The intersection of the two sliding grooves is interconnected. Two sliders are slidably connected in each of the two sliding grooves. The two sliders are arranged opposite to each other, and the top of the multiple sliders is fixedly connected to a limit plate. A drive mechanism is provided in each of the two grooves; The bottom of the testing chamber is equipped with a dust removal mechanism.

[0008] Preferably, each of the plurality of limiting plates has an anti-slip pad fixedly connected to the side of the plate closest to the support platform.

[0009] Preferably, the drive mechanism includes: One of the slides has a bidirectional lead screw rotatably mounted inside it, passing through two sliders and threadedly connected to them. A bevel gear is fitted in the middle of the bidirectional lead screw, and the bevel gear is fixedly connected to the bidirectional lead screw. The other slide has two screws rotatably connected inside it, arranged opposite to each other and coaxially, with opposite thread directions. These two screws pass through two other sliders and are threadedly connected to them. A bevel gear is fitted at the end of each screw near the bidirectional lead screw, and both bevel gears are fixedly connected to the screws and mesh with the first bevel gear. A motor is fixedly mounted on one side of the support platform, and the motor's output end is fixedly connected to the bidirectional lead screw via a coupling.

[0010] Preferably, a mounting box is fixedly connected to the intersection of the two slides, both screws and the bidirectional lead screw pass through the mounting box, both screws and the bidirectional lead screw are threadedly connected to the mounting box, and both bevel gears two and bevel gear one are disposed inside the mounting box.

[0011] Preferably, a folded dustproof plate is fixedly connected to both sides of the plurality of sliders between the slider and the slide groove and the mounting box.

[0012] Preferably, the dust removal mechanism includes: A limiting groove is formed through one side of the bottom of the inner cavity of the detection chamber. A moving block is slidably connected in the limiting groove. An industrial vacuum cleaner is installed on one side of the detection chamber. A telescopic suction pipe is connected to one side of the industrial vacuum cleaner. The telescopic suction pipe passes through the detection chamber and one side of the moving block. One end of the telescopic suction pipe is connected to a suction port. The suction port is parallel to the bottom of the inner cavity of the detection chamber. An electric push rod is fixedly connected to one side of the detection chamber. The output end of the electric push rod passes through the detection chamber and is fixedly connected to the moving block.

[0013] Preferably, the top of the industrial vacuum cleaner is slidably connected to a cylinder cover, the top of the cylinder cover is fixedly connected to a handle, the interior of the industrial vacuum cleaner is provided with a dust collection cylinder, and the top of the inner cavity of the dust collection cylinder is fixedly connected to a pull rod.

[0014] Preferably, a guide groove is provided through the bottom of the inner cavity of the detection box, a guide plate is slidably installed in the guide groove, and folded dustproof plates are fixedly connected to both sides of the guide plate and both sides of the guide groove.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, a bidirectional lead screw drives a bevel gear one to rotate, which in turn drives two bevel gears two to rotate, and the two bevel gears two to rotate simultaneously. This causes the bidirectional lead screw and the two screws to rotate at the same time, thereby driving the two sliders to move symmetrically and uniformly closer or further away within the slide groove. This synchronicity ensures that the clamping force of the two limiting plates on both sides is balanced, preventing the item from tilting due to excessive force on one side or loosening of the limiting plates due to insufficient force on one side. The two sliders inside the two slide grooves drive the top limiting plates to move closer to each other. The limiting plates firmly fix the item to be tested through mechanical force, preventing the item from sliding, rolling, or even falling due to inertia and vibration when the support platform moves up and down. This ensures that the position of the item to be tested will not shift when the support platform moves upward.

[0016] 2. In this utility model, an electric push rod is set to push the moving block to slide in the limiting groove. As the moving block moves, it drives the telescopic dust suction pipe to move. The telescopic dust suction pipe drives the dust suction port to move, thereby cleaning up the dust that enters the bottom of the inner cavity of the detection box through the strip hole. This can more efficiently remove the dust accumulation in specific areas and avoid the long-term accumulation of dust from affecting the heat dissipation, insulation or mechanical operation of the equipment inside the box. Attached Figure Description

[0017] Figure 1 This is a perspective view of an embodiment of this application; Figure 2 This is a perspective cross-sectional view of the support platform according to an embodiment of this application; Figure 3 This is a perspective cross-sectional view of the detection chamber in an embodiment of this application; Figure 4 This is a perspective cross-sectional view of the other side of the detection chamber in an embodiment of this application; Figure 5 This is a perspective cross-sectional view of an industrial vacuum cleaner according to an embodiment of this application.

[0018] Explanation of reference numerals in the attached drawings: 1. Detection chamber; 2. Support platform; 3. Motor; 4. Telescopic suction hose; 5. Industrial vacuum cleaner; 6. Cylinder cover; 7. Electric push rod; 8. Screw; 9. Mounting box; 10. Bevel gear two; 11. Bevel gear one; 12. Two-way lead screw; 13. Slider; 14. Limiting plate; 15. Anti-slip pad; 16. Moving block; 17. Suction port; 18. Folding dustproof plate one; 19. Handle; 20. Pull rod; 21. Dust collection cylinder. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1, as Figure 1-5 As shown, this utility model provides a testing device for low-voltage engineering, including a testing box 1, a support platform 2, a limiting mechanism, a driving mechanism, and a dust removal mechanism; A support platform 2 is slidably connected to one side of the detection box 1. A limiting mechanism is located on the top of the support platform 2. The limiting mechanism includes: two sliding grooves are provided on the top of the support platform 2. The two sliding grooves are arranged in a cross shape. One sliding groove extends horizontally and the other slides extend vertically. The intersection of the two sliding grooves is interconnected to form an internally connected cross-shaped channel structure. Two sliders 13 are slidably connected in each of the two sliding grooves. The two sliders 13 are arranged opposite to each other. A limiting plate 14 is fixedly connected to the top of the multiple sliders 13. An anti-slip pad 15 is fixedly connected to the side of the multiple limiting plates 14 near the support platform 2. The drive mechanism includes: a bidirectional lead screw 12 rotatably mounted in one of the slides, passing through two sliders 13 and threadedly connected to them; a bevel gear 11 is fitted in the middle of the bidirectional lead screw 12 and fixedly connected to it; and two screws 8 rotatably connected in the other slide, facing each other and coaxially arranged, with opposite thread directions, passing through two other sliders 13 and threadedly connected to them. A bevel gear 10 is fitted at the end of each screw 8 near the bidirectional lead screw 12 and fixedly connected to it. Both gears 10 mesh with bevel gears 11. A motor 3 is fixedly installed on one side of the support platform 1. The output end of the motor 3 is fixedly connected to the double-acting screw 12 via a coupling. A mounting box 9 is fixedly connected to the intersection of the two slides. Both screws 8 and the double-acting screw 12 pass through the mounting box 9 and are threadedly connected to the mounting box 9. Both bevel gears 10 and bevel gears 11 are located inside the mounting box 9. Folded dustproof plates 18 are fixedly connected to both sides of the multiple sliders 13 between the slides and the mounting box 9. The threads between the multiple sliders 13 and the two screws 8 and the double-acting screw 12 can achieve self-locking. The self-locking condition of the threads depends on the helix angle, the coefficient of friction, and the load. The self-locking condition of the threads can be calculated by the following formula: Self-locking condition = coefficient of friction × tan(helix angle) ≥ 1. When this condition is met, the threaded connection is self-locking. The above content is all prior art. In practical applications, the corresponding self-locking angle can be set according to the friction coefficient of the material, which will not be elaborated here.

[0022] In this embodiment, the motor 3 is started, which drives the bidirectional lead screw 12 to rotate. The bidirectional lead screw 12 drives the first bevel gear 11 to rotate, the first bevel gear 11 drives the two second bevel gears 10 to rotate, and the two second bevel gears 10 drive the two screws 8 to rotate simultaneously. This causes the bidirectional lead screw 12 and the two screws 8 to rotate simultaneously, thereby driving the two sliders 13 to move symmetrically and uniformly closer or further away in the slide groove. This synchronization ensures that the clamping force of the two limiting plates 14 on the items is balanced, avoiding the item from tilting due to excessive force on one side or the limiting plate from loosening due to insufficient force on one side. The two sliders 13 inside the two slide grooves drive the top limiting plates 14 to move closer to each other. The limiting plates 14 firmly fix the items to be tested by mechanical force, preventing the items from sliding, rolling or even falling due to inertia and vibration when the support platform 2 moves up and down. This ensures that the position of the items to be tested will not shift when the support platform 2 moves upward.

[0023] Example 2, as Figure 1-5As shown, the dust removal mechanism includes: a limiting groove is formed through one side of the bottom of the inner cavity of the detection chamber 1, and a moving block 16 is slidably connected in the limiting groove; an industrial vacuum cleaner 5 is installed on one side of the detection chamber 1, and a telescopic suction pipe 4 is connected to one side of the industrial vacuum cleaner 5, passing through the detection chamber 1 and the moving block 16 on one side; one end of the telescopic suction pipe 4 is connected to a suction port 17, which is parallel to the bottom of the inner cavity of the detection chamber 1; an electric push rod 7 is fixedly connected to one side of the detection chamber 1, and the output end of the electric push rod 7 passes through the detection chamber 1 and is fixedly connected to the moving block 16; the electric push rod 7 mainly consists of the following structural parts: motor, reducer, screw 8, push rod, and outer shell: protecting the internal components. To prevent external environmental influences, when in use, the motor receives a control signal and begins to rotate. The rotation of the motor is converted into a lower speed rotational motion through a reducer. The rotational motion of the reducer is transmitted to the screw 8. The rotation of the screw 8 drives the push rod, and the rotation of the screw 8 pushes the push rod to move along the axial direction to achieve linear motion. The top of the industrial vacuum cleaner 5 is slidably connected to a cylinder cover 6, and the top of the cylinder cover 6 is fixedly connected to a handle 19. The interior of the industrial vacuum cleaner 5 is equipped with a dust collection cylinder 21, and the top of the inner cavity of the dust collection cylinder 21 is fixedly connected to a pull rod 20. The bottom of the inner cavity of the detection box 1 is provided with a guide groove, and a guide plate is slidably installed in the guide groove. Folded dustproof plates are fixedly connected to both sides of the guide plate and both sides of the guide groove.

[0024] In this embodiment, the electric push rod 7 and the industrial vacuum cleaner 5 are activated. The electric push rod 7 pushes the moving block 16 to slide in the limiting groove. While the moving block 16 moves, it drives the telescopic suction pipe 4 to move. The telescopic suction pipe 4 drives the suction port 17 to move, thereby cleaning up the dust that enters the bottom of the inner cavity of the detection box 1 through the strip hole. This can more efficiently remove the dust accumulation in specific areas and avoid the long-term accumulation of dust affecting the heat dissipation, insulation or mechanical movement of the equipment inside the box. The dust enters the dust collection cylinder 21 through the suction port 17 and the telescopic suction pipe 4. When cleaning is required, use the handle 19 to open the cylinder cover 6, and then use the pull rod 20 to take out the dust collection cylinder 21, process the dust inside, and then put the dust collection cylinder 21 into the industrial vacuum cleaner 5 after cleaning.

[0025] Working principle: When in use, start motor 3, motor 3 drives the bidirectional lead screw 12 to rotate, bidirectional lead screw 12 drives bevel gear 11 to rotate, bevel gear 11 drives two bevel gears 10 to rotate, two bevel gears 10 drive two screws 8 to rotate simultaneously, thus causing the bidirectional lead screw 12 and the two screws 8 to rotate simultaneously, causing the two sliders 13 in the two slides to move closer or further apart, the two sliders 13 in the two slides to drive the top limiting plate 14 to move closer together, limiting the item to be detected at the top of the support platform, ensuring that the position of the item to be detected will not shift when the support platform 2 moves upward; When it is necessary to clean the dust inside the testing chamber 1, the electric push rod 7 and the industrial vacuum cleaner 5 are activated. The electric push rod 7 pushes the moving block 16 to slide in the limiting groove. As the moving block 16 moves, it drives the telescopic suction pipe 4 to move. The telescopic suction pipe 4 drives the suction port 17 to move, thereby cleaning the dust that enters the bottom of the inner cavity of the testing chamber 1 through the strip hole. The dust enters the dust collection cylinder 21 through the suction port 17 and the telescopic suction pipe 4. When cleaning is required, use the handle 19 to open the cylinder cover 6, and then use the pull rod 20 to take out the dust collection cylinder 21, clean the dust inside, and then put the dust collection cylinder 21 into the industrial vacuum cleaner 5.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A testing device for low-voltage electrical engineering, comprising a testing housing (1) and a support platform (2), characterized in that: A support platform (2) is slidably connected to one side of the detection box (1), and a limit mechanism is provided on the top of the support platform (2). The limit mechanism includes: The top of the support platform (2) is provided with two sliding grooves. The two sliding grooves are arranged in a cross pattern. One of the sliding grooves extends horizontally and the other extends vertically. The intersection of the two sliding grooves is interconnected. Two sliders (13) are slidably connected in each of the two sliding grooves. The two sliders (13) are arranged opposite to each other. The top of the multiple sliders (13) is fixedly connected with a limit plate (14). A drive mechanism is provided in each of the two grooves; The bottom of the detection box (1) is equipped with a dust removal mechanism.

2. The testing equipment for low-voltage engineering according to claim 1, characterized in that: Each of the limiting plates (14) is fixedly connected to an anti-slip pad (15) on the side near the support platform (2).

3. The testing equipment for low-voltage engineering according to claim 1, characterized in that: The drive mechanism includes: One of the grooves is rotatably mounted with a bidirectional lead screw (12), which passes through two sliders (13) and is threadedly connected to the two sliders (13). A bevel gear (11) is sleeved in the middle of the bidirectional lead screw (12), and the bevel gear (11) is fixedly connected to the bidirectional lead screw (12). The other groove is rotatably connected with two screws (8), which are arranged opposite to each other and coaxially. The threads of the two screws (8) are in opposite directions. Conversely, the two screws (8) pass through the other two sliders (13), and the two screws (8) are threadedly connected to the other two sliders (13). The ends of the two screws (8) near the bidirectional lead screw (12) are fitted with bevel gears (10), and the two bevel gears (10) are fixedly connected to the screws (8). The two bevel gears (10) mesh with bevel gears (11). A motor (3) is fixedly installed on one side of the support platform (2), and the output end of the motor (3) is fixedly connected to the bidirectional lead screw (12) through a coupling.

4. The testing equipment for low-voltage engineering according to claim 3, characterized in that: A mounting box (9) is fixedly connected to the intersection of the two grooves. The two screws (8) and the double-acting screw (12) pass through the mounting box (9). The two screws (8) and the double-acting screw (12) are threadedly connected to the mounting box (9). The two bevel gears (10) and (11) are both located inside the mounting box (9).

5. A testing device for low-voltage engineering according to claim 3, characterized in that: Folded dustproof plates (18) are fixedly connected to both sides of the multiple sliders (13) and between the slide groove and the mounting box (9).

6. The testing equipment for low-voltage engineering according to claim 1, characterized in that: The dust removal mechanism includes: A limiting groove is provided through one side of the bottom of the inner cavity of the detection box (1). A moving block (16) is slidably connected in the limiting groove. An industrial vacuum cleaner (5) is provided on one side of the detection box (1). A telescopic suction pipe (4) is connected to one side of the industrial vacuum cleaner (5). The telescopic suction pipe (4) passes through one side of the detection box (1) and the moving block (16). A suction port (17) is connected to one end of the telescopic suction pipe (4). The suction port (17) is parallel to the bottom of the inner cavity of the detection box (1). An electric push rod (7) is fixedly connected to one side of the detection box (1). The output end of the electric push rod (7) passes through the detection box (1) and is fixedly connected to the moving block (16).

7. A testing device for low-voltage engineering according to claim 6, characterized in that: The industrial vacuum cleaner (5) has a slidable cover (6) on its top, and a handle (19) is fixedly connected to the top of the cover (6). The industrial vacuum cleaner (5) has a dust collection cylinder (21) inside, and a pull rod (20) is fixedly connected to the top of the inner cavity of the dust collection cylinder (21).

8. A testing device for low-voltage engineering according to claim 6, characterized in that: The bottom of the inner cavity of the detection box (1) is provided with a guide groove, and a guide plate is slidably installed in the guide groove. Folded dustproof plates are fixedly connected to both sides of the guide plate and both sides of the guide groove.

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