Current testing machine

Abstract

The utility model discloses a current testing machine, and relates to the technical field of current testing. The upper end of one side of the cabinet body is provided with a sinking groove, a display screen is fixedly inserted into the inner wall of the sinking groove, a protection mechanism matched with the display screen for use is arranged in the sinking groove, moving wheels are fixedly installed at the four corners of the bottom end of the cabinet body, and a supporting mechanism matched with the moving wheels for use is arranged at the lower end of the cabinet body; the supporting mechanism comprises a rotating rod and a side gear, and the lower end of the cabinet body is provided with an inner groove and a counter bore which are matched for use; through the arrangement and use of the supporting mechanism, after the cabinet body is moved to a proper position, the cross plate can be conveniently moved downwards to be tightly attached to the ground, so that the cabinet body can be well supported, the moving wheels can be prevented from being in a long-time supporting state, the phenomenon that the moving wheels are damaged due to long-time supporting can be avoided, and the service life of the cabinet body is prolonged. Therefore, normal and stable use and convenient movement of the subsequent current testing machine are ensured.

Description

Technical Field

[0001] This utility model relates to the field of current testing technology, specifically to a current testing machine. Background Technology

[0002] Current testing cabinets are electrical devices used for testing current. They feature high sensitivity, multi-range protection circuits, and a wide measurement range, and are widely used in industries, enterprises, and factories.

[0003] Patent CN212992854U discloses a high-current test cabinet with excellent heat dissipation performance, including a cabinet, a display screen, a test body, and a test platform. The top of both sides inside the cabinet is equipped with a heat dissipation mechanism, which includes a fixing plate, a cooling fan, heat dissipation holes, and ventilation holes. The test platform is fixed inside the cabinet, and the bottom of the test platform is fixed with a push-pull structure. Both sides of the bottom of the cabinet are equipped with casters.

[0004] While existing technologies have improved heat dissipation performance, the casters are under constant support for extended periods, which can easily lead to damage. Furthermore, the display screen is prone to collision damage when the current tester is idle, thus affecting the normal and stable use and convenient movement of the current tester.

[0005] To address the aforementioned problems, the inventors proposed a current testing machine to solve them. Utility Model Content

[0006] In order to solve the problems of easy damage to the moving wheels due to prolonged support and easy damage to the display screen due to collisions when the current testing machine is idle, the purpose of this utility model is to provide a current testing machine.

[0007] To solve the above technical problems, the present invention adopts the following technical solution: a current testing machine, including a cabinet, a recessed groove is provided on the upper side of one side of the cabinet, and a display screen is fixedly inserted into the inner wall of the recessed groove. A protective mechanism for use with the display screen is provided in the recessed groove, and movable wheels are fixedly installed at the four corners of the bottom of the cabinet. A support mechanism for use with the movable wheels is provided at the lower end of the cabinet.

[0008] The support mechanism includes a rotating rod and a side gear. The lower end of the cabinet has a matching inner groove and countersunk hole. The rotating rod is inserted into the inner groove and countersunk hole. A handwheel is fixedly installed at one end of the rotating rod, and a rocker arm is rotatably inserted into the handwheel. A bevel gear is fixedly sleeved at the other end of the rotating rod. The side gear is rotatably installed at the bottom of the inner cavity of the inner groove, and the side gear meshes with the bevel gear. A lead screw is threaded into the side gear, and the lead screw moves through the cabinet and is fixedly sleeved at its end with a cross plate. The cross plate is slidably connected to the cabinet. Symmetrically arranged guide rods are fixedly installed on the cross plate and are slidably inserted into the cabinet. Symmetrically distributed guide holes are opened at the bottom of the cabinet, and the guide rods are slidably inserted into the guide holes.

[0009] Preferably, the protection mechanism includes a protection plate that is slidably inserted into a recess. The lower end of the recess has a slot, and the protection plate is slidably inserted into the slot. The size of the protection plate is larger than the size of the display screen. The upper end of the protection plate has symmetrically distributed cavities. A sliding plate is slidably inserted into the cavity. Springs are fixedly installed on opposite sides of the sliding plate. The ends of the springs are fixedly connected to the inner wall of the cavity. Insert rods are fixedly installed on opposite sides of the sliding plate. The upper end of the recess has symmetrically distributed insertion holes, and the insertion rods can slide through the protection plate and slide into the insertion holes. A push plate is fixedly installed on the sliding plate and slides through the protection plate. A push groove communicating with the cavity is opened through the protection plate, and the push plate is slidably inserted into the push groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. Through the use of the support mechanism, the cross plate can be easily lowered and made to fit tightly against the ground after the cabinet is moved to a suitable position, thus providing good support for the cabinet and preventing the moving wheels from being in a supported state for a long time. This avoids damage to the moving wheels due to prolonged support, thereby ensuring the normal and stable use and convenient movement of the current testing machine.

[0012] 2. By setting up and using the protection mechanism, the display screen can be shielded and protected when the current tester is idle, thereby avoiding collision damage to the display screen during the idle period of the current tester, and further ensuring the normal use of the current tester. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the installation of the protection mechanism in this utility model.

[0016] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0017] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point B.

[0018] Figure 5 This utility model Figure 2 Enlarged schematic diagram of the structure at point C.

[0019] In the diagram: 1. Cabinet; 11. Recessed groove; 12. Inner groove; 13. Countersunk hole; 14. Insertion hole; 15. Slot; 16. Guide hole; 2. Display screen; 3. Protective mechanism; 31. Protective plate; 32. Cavity; 33. Slide plate; 34. Spring; 35. Insert rod; 36. Push plate; 37. Push groove; 4. Moving wheel; 5. Support mechanism; 51. Rotating rod; 52. Side gear; 53. Handwheel; 54. Rocker arm; 55. Bevel gear; 56. Lead screw; 57. Cross plate; 58. Guide rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Figure 1-5 As shown, this utility model provides a current testing machine, including a cabinet 1. A recessed groove 11 is provided on the upper side of one side of the cabinet 1, and a display screen 2 is fixedly inserted into the inner wall of the recessed groove 11. A protective mechanism 3 is provided in the recessed groove 11 to cooperate with the display screen 2. A movable wheel 4 is fixedly installed at the four corners of the bottom of the cabinet 1, and a support mechanism 5 to cooperate with the movable wheel 4 is provided at the lower end of the cabinet 1.

[0022] The support mechanism 5 includes a rotating rod 51 and a side gear 52. The lower end of the cabinet 1 has a matching inner groove 12 and a countersunk hole 13. The rotating rod 51 is rotatably inserted into the inner groove 12 and the countersunk hole 13. A handwheel 53 is fixedly installed at one end of the rotating rod 51, and a rocker arm 54 is rotatably inserted into the handwheel 53. A bevel gear 55 is fixedly sleeved at the other end of the rotating rod 51. The side gear 52 is rotatably installed at the bottom of the inner cavity of the inner groove 12, and the side gear 52 meshes with the bevel gear 55. A threaded rod 56 is inserted, and the threaded rod 56 moves through the cabinet 1 and is fixedly sleeved at its end with a cross plate 57. The cross plate 57 is slidably connected to the cabinet 1. Symmetrically arranged guide rods 58 are fixedly installed on the cross plate 57 and are slidably inserted into the cabinet 1. Symmetrically distributed guide holes 16 are opened at the bottom of the cabinet 1, and the guide rods 58 are slidably inserted into the guide holes 16. The cooperation between the guide rods 58 and the guide holes 16 plays a limiting and guiding role in the movement adjustment of the cross plate 57.

[0023] By adopting the above technical solution, when in use, the cabinet 1 is pushed to a suitable position with the help of the movable wheel 4, and then the rocker arm 54 is turned, which can drive the handwheel 53 to rotate, which in turn can drive the rotating rod 51 to rotate, which can further drive the bevel gear 55 to rotate, which can drive the side gear 52 to rotate, which can then be used with the lead screw 56 to drive the cross plate 57 to move downward, and the rocker arm 54 is stopped when the bottom end of the cross plate 57 is in close contact with the ground.

[0024] The protective mechanism 3 includes a protective plate 31, which is slidably inserted into a recess 11. A slot 15 is provided at the lower end of the recess 11, and the protective plate 31 is slidably inserted into the slot 15. The size of the protective plate 31 is larger than the size of the display screen 2. Symmetrically distributed cavities 32 are provided at the upper end of the protective plate 31. Slide plates 33 are slidably inserted into the cavities 32, and springs 34 are fixedly installed on opposite sides of the slide plates 33. The ends of the springs 34 are fixedly connected to the inner wall of the cavity 32, and the opposite sides of the slide plates 33... All are fixedly installed with insert rods 35. The upper end of the sink 11 is provided with symmetrically distributed insertion holes 14. The insert rods 35 can slide through the protective plate 31 and slide into the insertion holes 14. The slide plate 33 is fixedly installed with a push plate 36, which slides through the protective plate 31. The protective plate 31 is provided with a push groove 37 that communicates with the cavity 32. The push plate 36 slides into the push groove 37. The cooperation between the push plate 36 and the push groove 37 plays a limiting and guiding role in the movement and adjustment of the slide plate 33.

[0025] By adopting the above technical solution, when in use, pushing the two push plates 36 to move in opposite directions can drive the two slide plates 33 to move in opposite directions, which in turn can drive the two plug rods 35 to move in opposite directions and squeeze the corresponding springs 34. When the plug rods 35 are completely separated from the corresponding plug holes 14, the push plates 36 are moved down, which can drive the protection plate 31 to move down. When the protection plate 31 moves down to the lowest position, the two push plates 36 are released and the current test operation is carried out. When the current tester is finished, the protection plate 31 can be reset.

[0026] Working principle: When in use, the cabinet 1 is pushed to a suitable position with the help of the moving wheels 4. Then, the rocker arm 54 is turned, which drives the handwheel 53 to rotate, which in turn drives the rotating rod 51 to rotate, which in turn drives the bevel gear 55 to rotate, which in turn drives the side gear 52 to rotate. This, in conjunction with the lead screw 56, drives the cross plate 57 to move downward. The rocker arm 54 is stopped when the bottom of the cross plate 57 is in close contact with the ground.

[0027] Then, push the two push plates 36 to move in opposite directions, thereby driving the two slide plates 33 to move in opposite directions, which in turn drives the two plug rods 35 to move in opposite directions and squeeze the corresponding springs 34. When the plug rods 35 are completely separated from the corresponding plug holes 14, push the push plates 36 to move down, thereby driving the protection plate 31 to move down. When the protection plate 31 moves down to the lowest position, release the two push plates 36 and carry out the current test operation. After the current tester is used, reset the protection plate 31.

[0028] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A current testing machine, comprising a cabinet (1), characterized in that: A recessed groove (11) is provided on the upper side of one side of the cabinet (1), and a display screen (2) is fixedly inserted into the inner wall of the recessed groove (11). A protective mechanism (3) is provided in the recessed groove (11) to cooperate with the display screen (2). A movable wheel (4) is fixedly installed at the four corners of the bottom of the cabinet (1). A support mechanism (5) is provided at the lower end of the cabinet (1) to cooperate with the movable wheel (4). The support mechanism (5) includes a rotating rod (51) and a side gear (52), and the lower end of the cabinet (1) is provided with an inner groove (12) and a countersunk hole (13) for cooperation. The rotating rod (51) is rotatably inserted into the inner groove (12) and the countersunk hole (13), and a handwheel (53) is fixedly installed at one end of the rotating rod (51). A rocker arm (54) is rotatably inserted into the handwheel (53), and a bevel gear (55) is fixedly sleeved at the other end of the rotating rod (51). The side gear (52) is rotatably installed at the bottom of the inner cavity of the inner groove (12), and the side gear (52) meshes with the bevel gear (55). A lead screw (56) is threaded into the side gear (52), and the lead screw (56) moves through the cabinet (1) and a cross plate (57) is fixedly sleeved at its end. The cross plate (57) is slidably connected to the cabinet (1).

2. The current testing machine as described in claim 1, characterized in that, The protective mechanism (3) includes a protective plate (31), which is slidably inserted into the sink (11). The upper end of the protective plate (31) is provided with symmetrically distributed cavities (32). A sliding plate (33) is slidably inserted into the cavity (32). A spring (34) is fixedly installed on the opposite side of the sliding plate (33). The end of the spring (34) is fixedly connected to the inner wall of the cavity (32). A plug rod (35) is fixedly installed on the opposite side of the sliding plate (33). A symmetrically distributed insertion hole (14) is provided at the upper end of the sink (11). The plug rod (35) can slide through the protective plate (31) and slide into the insertion hole (14).

3. The current testing machine as described in claim 2, characterized in that, The lower end of the sink (11) is provided with a slot (15), and the protective plate (31) is slidably inserted into the slot (15).

4. The current testing machine as described in claim 2, characterized in that, A push plate (36) is fixedly installed on the slide plate (33), and the push plate (36) slides through the protective plate (31).

5. The current testing machine as described in claim 4, characterized in that, The protective plate (31) has a through groove (37) that communicates with the cavity (32), and the push plate (36) is slidably inserted into the groove (37).

6. The current testing machine as described in claim 2, characterized in that, The size of the protective plate (31) is larger than the size of the display screen (2).

7. The current testing machine as described in claim 1, characterized in that, Symmetrically arranged guide rods (58) are fixedly installed on the cross plate (57), and the guide rods (58) are slidably inserted into the cabinet (1).

8. The current testing machine as described in claim 7, characterized in that, The bottom of the cabinet (1) is provided with symmetrically distributed guide holes (16), and the guide rod (58) is slidably inserted into the guide holes (16).

Images