Circuit module testing device

Abstract

The present invention relates to the field of circuit testing technology, and discloses a circuit module testing device, comprising a multimeter body, a display screen installed on the upper front side of the multimeter body, and two connecting cables installed on the lower front side of the multimeter body, the two connecting cables are fixedly connected to an operation box on the side away from the multimeter body, an operation cavity is provided inside the operation box, a push opening is provided through the upper surface of the operation cavity, two matching detection components are connected to the inner wall of the operation cavity near one end of the connecting cable, and a support component is connected between the middle parts of the two detection components. This circuit module testing device, by arranging the operation box at the front ends of the two connecting cables of the multimeter body, and arranging two detection components inside the operation box, can store the two detection components through the operation cavity when the detection components are not needed to detect the circuit module, thereby avoiding stabbing injuries to people and reducing the probability of damage to the detection components.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit testing, in particular to a circuit module testing device. Background Art

[0002] With the development of electronic technology, circuit modules are becoming more and more complex, and the requirements for testing are becoming higher and higher. At present, when testing circuit modules, multiple devices are used, including but not limited to multimeters, which are mainly used to measure basic electrical parameters such as voltage, current, and resistance in circuit modules.

[0003] The patent with announcement number CN221528748U discloses a multimeter that is easy to use, including a multimeter body and a first rectangular block, a first slide plate that fits with the outer wall of the multimeter body is fixedly connected to the bottom of the first rectangular block, a pair of first vertical plates are fixedly connected to the lower surface of the first slide plate, and a bidirectional screw is rotatably connected inside the first vertical plate, and a fixing mechanism is installed on the outer wall of the bidirectional screw. The multimeter can drive the cross plate to move through the multimeter body, so that the upper surface of the cross plate fits with the table top or side of the external device, and then the bidirectional screw is driven to rotate by the handle, so that the bidirectional screw cooperates with the first slide plate and the first slider to drive the second vertical plate to move, so that the second vertical plate can drive the cross rod to move crosswise, so that the cross rod drives the second slide plate to move through the second slider, and the multimeter body is fixed to the external device, so that the multimeter body is not easy to fall or tip over.

[0004] However, the above multimeter still has the following problems in actual use:

[0005] A multimeter usually consists of a main body and two probes. When probing a circuit module, the two probes are placed against two locations to be tested, and then the area between the two probes can be measured to see if it is normal. However, the probe of a multimeter usually has a tip that is exposed to the outside, which can easily hurt people and objects and may also damage the probe itself. Summary of the invention

[0006] In view of the deficiencies of the prior art, the present invention provides a circuit module testing device, which can store the detection components when not in use.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a circuit module testing device, comprising a multimeter body, a display screen installed on the upper front side of the multimeter body, and two connecting cables installed on the lower front side of the multimeter body, the two connecting cables are fixedly connected to an operation box on the side away from the multimeter body, an operation cavity is provided inside the operation box, a push opening is penetrated through the upper surface of the operation cavity, two matching detection components are connected to the inner wall of the operation cavity near one end of the connecting cable, a support component is connected between the middle parts of the two detection components, a clamping component and a guide component are connected to the side of the support component near the connecting cable, a stop assembly is connected to one side of the clamping component, the upper end of the support component is connected to a push plate, the other end of the push plate penetrates to the outside of the push opening, and the end of the stop assembly away from the clamping component is connected to the side wall of the push plate at the end outside the push opening.

[0008] Furthermore, the detection component includes a spring wire and a detection semicircular head, one end of the spring wire is fixedly connected to the inner wall of the operating cavity, the other end of the spring wire is connected to one end of the detection semicircular head, the other end of the detection semicircular head passes through the inner wall of the operating cavity to the outside of the operating cavity, and the detection semicircular heads of the two detection components are combined into a complete circle, the supporting component is connected to the side of the detection semicircular heads of the two detection components close to the spring wire, and the detection semicircular head, spring wire and connecting cable are electrically connected.

[0009] Furthermore, the supporting assembly includes a No. 1 semicircular plate and a No. 2 semicircular plate, one side of the No. 1 semicircular plate and the No. 2 semicircular plate are respectively fixedly connected to the side of the two detection semicircular heads close to the spring wire, the No. 1 semicircular plate and the No. 2 semicircular plate are respectively sleeved on the outer walls of the two spring wires, the sides of the No. 1 semicircular plate and the No. 2 semicircular plate away from the detection semicircular heads are both connected to the clamping assembly, the side of the No. 1 semicircular plate away from the detection semicircular head is fixedly connected to the lower end of the push plate, and the side of the No. 2 semicircular plate away from the detection semicircular head is connected to the guide assembly.

[0010] Furthermore, the clamping assembly includes a support rod, a torsion spring, two fixed blocks and two rotating blocks, one end of the two fixed blocks are fixedly connected to the side of the No. 2 semicircular plate away from the detection semicircular head, one end of the two rotating blocks are fixedly connected to the side of the No. 1 semicircular plate away from the detection semicircular head, the support rod passes through the two fixed blocks and the two rotating blocks, and the outer wall of the support rod is fixedly connected to the inner walls of the two fixed blocks, the outer wall of the support rod is rotatably connected to the inner walls of the two rotating blocks, the torsion spring is sleeved on the outside of the support rod, and the two ends of the torsion spring are respectively fixedly connected to the side walls of the No. 1 semicircular plate and the No. 2 semicircular plate, and the side wall of one of the fixed blocks is connected to the back-stop assembly.

[0011] Furthermore, the backstop assembly includes a side plate, a ratchet plate, an extension block, a limit block, a guide rod and a thrust spring, the side wall of the ratchet plate is fixedly connected to the inner wall of the operating chamber, one end of the extension block is fixedly connected to the side wall of one of the fixed blocks, the other end of the extension block is sleeved and slidably connected to the outer wall of the guide rod, one end of the guide rod is fixedly connected to one side of the limit block, the other side of the limit block is aligned with the ratchet plate, the two ends of the thrust spring are respectively fixedly connected to the side walls of the extension block and the limit block, the lower end of the side plate is fixedly connected to the upper surface of the rear end of the limit block, the upper end of the side plate passes through to the top of the push port and is fixedly connected to the side wall of the push plate.

[0012] Furthermore, the guide assembly includes a tension spring, a slider, a slide rod and a support block. A slide groove is provided on the bottom surface of the operating cavity. The lower end of the support block is fixedly connected to the inner wall of one end of the slide groove. The two ends of the slide rod are respectively fixedly connected to the support block and the inner wall of the slide groove. The upper end of the slider is fixedly connected to the end of the No. 2 semicircular plate away from the detection semicircular head. The lower end of the slider is sleeved and slidably connected to the outer wall of the slide rod. The two ends of the tension spring are respectively fixedly connected to the side walls of the support block and the slider.

[0013] Furthermore, an elliptical support ring is fixedly connected to the inner wall of the operating cavity away from one end of the connecting cable, a sliding opening is opened through the bottom surface of the elliptical support ring, the No. 2 semicircular plate and the outer wall of the detection semicircular head connected to the No. 2 semicircular plate are both slidably connected to the inner wall of the elliptical support ring, and the outer wall of the slider is slidably connected to the inner wall of the sliding opening.

[0014] Furthermore, a No. 1 socket is provided on the upper surface of the two operating boxes near one end of the connecting cable, a No. 2 socket is penetrated through the upper surface of the two push plates, and plug blocks are fixedly connected to the upper surfaces of the two push plates. The outer walls of the two plug blocks respectively penetrate the No. 2 socket on the other push plate to the No. 1 socket, and the outer walls of the plug blocks are slidably connected to the inner walls of the No. 1 socket and the No. 2 socket.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This circuit module testing device, by arranging operation boxes at the front ends of the two connecting cables of the multimeter body and arranging two detection components inside the operation box, can store the two detection components through the operation cavity when the detection components are not needed to detect the circuit module, thereby avoiding stabbing injuries and reducing the probability of damage to the detection components.

[0017] This circuit module testing device, by arranging a supporting component outside the two detection components, and connecting a push plate located outside the operating box through the supporting component, when it is necessary to detect a certain section of the circuit module, it is only necessary to push the push plate, and the support component and the detection component can be pushed to move in the operating cavity by the push plate, and then the detection component can be pushed to the outside of the operating cavity, thereby realizing the detection of a certain section of the circuit module, which is convenient and quick.

[0018] This circuit module testing device, by arranging a clamping component on one side of the supporting component and matching the two ends of the clamping component with two detection components respectively, can control the opening of the detection component through the clamping component when testing a certain section of the circuit module, and then can clamp the circuit after opening, thereby avoiding the need to keep the detection component against the detection point, saving the physical strength of the detection personnel, and reducing the difficulty of detection.

[0019] This circuit module testing device can limit the detection component during detection by arranging a stop component on one side of the clamping component to prevent the detection component from returning on its own due to contact with the detection point.

[0020] A circuit module testing device, by arranging a guide component under the support component, can limit the moving tracks of components such as the support component and the detection component before detection, and will not rotate or tilt during the movement; similarly, after the detection, the detection component can be automatically retracted through the guide component, thereby saving the step of manual retraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall appearance of the present invention;

[0022] Figure 2 A detailed connection diagram of the components such as the connecting cable, the operating box and the detection assembly of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the operation box of the present invention;

[0024] Figure 4 It is a cross-sectional schematic diagram of the operation box of the present invention;

[0025] Figure 5 For the present invention Figure 4 The enlarged schematic diagram of point A in the middle;

[0026] Figure 6 For the present invention Figure 4 The enlarged schematic diagram of point B in the middle;

[0027] Figure 7It is a detailed connection diagram of the detection assembly, the support assembly and the clamping assembly of the present invention;

[0028] Figure 8 For the present invention Figure 7 Exploded diagram of the components in the figure;

[0029] Fig. 9 For the present invention Figure 8 Enlarged schematic diagram of point C in the middle.

[0030] In the figure: 1. multimeter body; 2. display screen; 3. connecting cable; 4. operation box; 5. push plate; 6. push port; 7. No. 1 socket; 8. plug block; 9. No. 2 socket; 10. side panel; 11. No. 1 semicircular plate; 12. No. 2 semicircular plate; 13. detection semicircular head; 14. operation chamber; 15. spring wire; 16. tension spring; 17. slider; 18. slide rod; 19. elliptical support ring; 20. ratchet plate; 21. slide groove; 22. slide port; 23. support block; 24. fixed block; 25. support rod; 26. rotating block; 27. torsion spring; 28. extension block; 29. ​​limit block; 30. guide rod; 31. thrust spring. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] See also Figure 1-Figure 9 A circuit module testing device comprises a multimeter body 1, a display screen 2 installed on the upper front side of the multimeter body 1 and two connecting cables 3 installed on the lower front side of the multimeter body 1, the two connecting cables 3 are fixedly connected with an operation box 4 on the side away from the multimeter body 1, an operation cavity 14 is provided inside the operation box 4, a push opening 6 is penetrated through the upper surface of the operation cavity 14, two matching detection components are connected to the inner wall of the operation cavity 14 near one end of the connecting cable 3, a supporting component is connected between the middle parts of the two detection components, a clamping component and a guide component are connected to the side of the supporting component near the connecting cable 3, a stopper component is connected to one side of the clamping component, a push plate 5 is connected to the upper end of the supporting component, the other end of the push plate 5 penetrates to the outside of the push opening 6, and the end of the stopper component away from the clamping component is connected to the side wall of the push plate 5 located at the end outside the push opening 6.

[0033] A circuit module test device in the present invention is similar in structure to an existing circuit module test device, such as a convenient multimeter disclosed in patent publication number CN221528748U. Figures 1 to 9 As shown, the circuit module testing device of the present invention can be used in the following steps:

[0034] First, insert the ends of the two connecting cables 3 away from the operating box 4 into the two connecting holes on the multimeter body 1 respectively, and then manually push the two push plates 5 (here, both can be pushed by two hands at the same time, or by one hand separately, without specific limitation). After the push plate 5 is subjected to force, it will move along the push opening 6, and in the process of displacement, it will move together with the two detection components, support components, clamping components, etc. located in the operating cavity 14 inside the operating cavity 14, and then in the process of movement, the front end of the detection component can be extended from the inside of the operating cavity 14 to the outside of the operating box 4, and then the detection personnel can use the two detection components to respectively press against the two measuring points of the circuit module for detection. After the detection, pull back the two push plates 5 to retract the detection components in the two operating boxes 4 into the operating cavity 14, thereby avoiding stabbing injuries and reducing the probability of damage to the detection components.

[0035] When the detection component detects the circuit module, in order to determine which part has a fault, it may be necessary to fix the detection component in one of the operation boxes 4 at a specified position, and then move the detection component of the other operation box 4, so as to determine the specific fault range in a section of the line according to the numbers displayed on the display screen 2 or the buzzer sound. If the line is long, a worker may not be able to (or inconvenient) press both hands on two detection points at the same time. At this time, after pushing the detection component into the operation cavity 14, the push plate 5 can be slightly pressed down for a distance. At this time, the push plate 5 can expand the two detection components in the same operation box 4 by a certain angle through the support component, so that an "opening" can be formed at one end of the outside of the operation box 4. At this time, the operator will insert the opening at the point to be tested, and then release the force pressing the push plate 5. At this time, the push plate 5 can clamp the detection point between the two detection components under the action of the clamping component. Then the operator only needs to move another operation box 4, and the detection point on the detection line can be replaced through the two detection components in this operation box 4, which is convenient, fast and easy to operate.

[0036] When using the detection component to detect the test point, because the detection component needs to be against or pressed on the test point, in order to avoid the detection component returning to the operating cavity 14 by itself during the detection, when the push plate 5 is pushed to move, because the support component and the clamping component move together inside the operating cavity 14, the clamping component and the push plate 5 can move together with the backstop component, and when the backstop component moves, it will automatically form a backstop limiting force between the support component and the operating cavity 14, and then, without canceling the backstop component, the front end detection component will not be pushed back by itself during detection.

[0037] Before detection, when pushing the push plate 5, due to the limitation of the guide assembly, the support assembly and the detection assembly will only move in a specific direction following the guide assembly, and will not rotate or tilt during the movement; similarly, after detection, it is only necessary to loosen the stop assembly and the push plate 5. At this time, due to the action of the guide assembly, the detection assembly that has been extended to the outside of the operating cavity 14 will be automatically retracted, thereby saving the step of manual retraction.

[0038] It should be noted that the multimeter body 1, display screen 2 and two connecting cables 3 mentioned above are all existing mature technologies, so their internal structures are not described in detail here.

[0039] As a preferred solution of the present invention, the detection component includes a spring wire 15 and a detection semicircular head 13, one end of the spring wire 15 is fixedly connected to the inner wall of the operating cavity 14, the other end of the spring wire 15 is connected to one end of the detection semicircular head 13, the other end of the detection semicircular head 13 passes through the inner wall of the operating cavity 14 to the outside of the operating cavity 14, and the detection semicircular heads 13 of the two detection components are combined into a complete circle, the support component is connected to the side of the detection semicircular heads 13 of the two detection components close to the spring wire 15, and the detection semicircular head 13, the spring wire 15 and the connecting cable 3 are electrically connected.

[0040] More specifically, when it is necessary to test the two test points of the circuit module, it is only necessary to push the push plate 5. After the push plate 5 moves, it will move with the supporting assembly located in the operating cavity 14. Then, the movement of the supporting assembly can push the detection semicircular head 13 to move together. Due to the action of the spring wire 15, the normal detection data of the detection semicircular head 13 will not be affected. Subsequently, when the detection semicircular head 13 is against the detection point, the detection semicircular head 13 can transmit the detection data to the inside of the multimeter body 1 via the spring wire 15 and the connecting cable 3, so that the detection result can be judged according to the display of the display screen 2 and the beeping sound.

[0041] As a preferred solution of the present invention, the supporting assembly includes a No. 1 semicircular plate 11 and a No. 2 semicircular plate 12, one side of the No. 1 semicircular plate 11 and the No. 2 semicircular plate 12 are respectively fixedly connected to the side of the two detection semicircular heads 13 close to the spring line 15, the No. 1 semicircular plate 11 and the No. 2 semicircular plate 12 are respectively sleeved on the outer walls of the two spring lines 15, the No. 1 semicircular plate 11 and the No. 2 semicircular plate 12 are away from the detection semicircular heads 13. The sides are connected to the clamping assembly, the side of the No. 1 semicircular plate 11 away from the detection semicircular head 13 is fixedly connected to the lower end of the push plate 5, and the side of the No. 2 semicircular plate 12 away from the detection semicircular head 13 is connected to the guide assembly.

[0042] More specifically, when the push plate 5 is pushed, the movement of the push plate 5 will push the No. 1 semicircular plate 11 to move together. After the No. 1 semicircular plate 11 moves, it will push the No. 2 semicircular plate 12 to move due to the connection of the clamping assembly, and then the two detection semicircular heads 13 connected to the No. 1 semicircular plate 11 and the No. 2 semicircular plate 12 can be moved.

[0043] As a preferred solution of the present invention, the clamping assembly includes a support rod 25, a torsion spring 27, two fixed blocks 24 and two rotating blocks 26, one end of the two fixed blocks 24 are fixedly connected to the side of the No. 2 semicircular plate 12 away from the detection semicircular head 13, one end of the two rotating blocks 26 are fixedly connected to the side of the No. 1 semicircular plate 11 away from the detection semicircular head 13, the support rod 25 passes through the two fixed blocks 24 and the two rotating blocks 26, and the outer wall of the support rod 25 is fixedly connected to the inner wall of the two fixed blocks 24, the outer wall of the support rod 25 is rotatably connected to the inner wall of the two rotating blocks 26, the torsion spring 27 is sleeved on the outside of the support rod 25, and the two ends of the torsion spring 27 are respectively fixedly connected to the side walls of the No. 1 semicircular plate 11 and the No. 2 semicircular plate 12, and the side wall of one of the fixed blocks 24 is connected to the back-stop assembly.

[0044] More specifically, when the two detection semicircular heads 13 need to be opened at an angle to clamp the detection point, it is only necessary to press the push plate 5. The push plate 5 will be subjected to force to rotate and open the No. 1 semicircular plate 11 around the support rod 25 as the axis. After that, when the two detection semicircular heads 13 move to the detection point, release the push plate 5. At this time, due to the action of the torsion spring 27, the No. 1 semicircular plate 11 and the detection semicircular head 13 are reset, and during the reset process, they cooperate with the other detection semicircular head 13 to clamp the detection point.

[0045] As a preferred solution of the present invention, the backstop assembly includes a side plate 10, a ratchet plate 20, an extension block 28, a limit block 29, a guide rod 30 and a thrust spring 31. The side wall of the ratchet plate 20 is fixedly connected to the inner wall of the operating chamber 14, one end of the extension block 28 is fixedly connected to the side wall of one of the fixed blocks 24, the other end of the extension block 28 is sleeved and slidably connected to the outer wall of the guide rod 30, one end of the guide rod 30 is fixedly connected to one side of the limit block 29, and the other side of the limit block 29 is aligned with the ratchet plate 20, the two ends of the thrust spring 31 are respectively fixedly connected to the side walls of the extension block 28 and the limit block 29, the lower end of the side plate 10 is fixedly connected to the upper surface of the rear end of the limit block 29, and the upper end of the side plate 10 passes through to the top of the push port 6 and is fixedly connected to the side wall of the push plate 5.

[0046] First of all, it should be noted that the cross-sections of the teeth on the limit block 29 and the ratchet plate 20 are all right-angled trapezoids, that is, one side is straight and the other side is inclined, see Figure 4 and Fig. 9 .

[0047] More specifically, when the No. 1 semicircular plate 11 and the No. 2 semicircular plate 12 are displaced following the push plate 5, the inclined surface of the limit block 29 at this time abuts against the inclined surface of the ratchet plate 20, and the limit block 29 can be pushed toward the extension block 28 through the guide rod 30, and the thrust spring 31 is compressed during the pushing process. Afterwards, when the limit block 29 passes through the first tooth in contact with the ratchet plate 20, due to the action of the thrust spring 31, the limit block 29 will be inserted again between the two adjacent teeth of the ratchet plate 20. At this time, because the rear of the limit block 29 and the side adjacent to the teeth of the ratchet plate 20 are straight surfaces, the limit block 29 will be restricted to a specific position, thereby avoiding the situation where the detection semicircular head 13 retreats during the detection period.

[0048] When the monitoring is completed, press the side panel 10, and the side panel 10 will push the limit block 29 to move along the direction of the guide rod 30. During the movement, the limit block 29 can be pulled out from the ratchet plate 20, thereby canceling the limit between the limit block 29 and the ratchet plate 20, so that the detection assembly can be retracted into the operating cavity 14 in cooperation with the guide assembly.

[0049] It should be specially noted here that there is a certain degree of deformability between the guide rod 30 and the extension block 28, and the deformation space only needs to be sufficient so that after the side panel 10 is pressed, the guide rod 30 can move smoothly inside the extension block 28 without getting stuck; of course, the side panel 10 may also have a certain degree of deformation space, which is not specifically limited.

[0050] As a preferred solution of the present invention, the guide assembly includes a tension spring 16, a slider 17, a slide rod 18 and a support block 23. A slide groove 21 is provided on the bottom surface of the operating chamber 14. The lower end of the support block 23 is fixedly connected to the inner wall of one end of the slide groove 21. The two ends of the slide rod 18 are respectively fixedly connected to the support block 23 and the inner wall of the slide groove 21. The upper end of the slider 17 is fixedly connected to the end of the second semicircular plate 12 away from the detection semicircular head 13. The lower end of the slider 17 is sleeved and slidably connected to the outer wall of the slide rod 18. The two ends of the tension spring 16 are respectively fixedly connected to the side walls of the support block 23 and the slider 17.

[0051] More specifically, when the second semicircular plate 12 moves, the slider 17 located below the second semicircular plate 12 will move inside the slide groove 21 and outside the slide rod 18, and in the process of moving, the tension spring 16 will be stretched. At this time, due to the action of the limit block 29 and the ratchet plate 20, the second semicircular plate 12 will not move backward. When the detection is completed, the second semicircular plate 12.

[0052] As a preferred solution of the present invention, an elliptical support ring 19 is fixedly connected to the inner wall of the operating cavity 14 away from one end of the connecting cable 3, and a sliding opening 22 is opened through the bottom surface of the elliptical support ring 19. The outer wall of the No. 2 semicircular plate 12 and the detection semicircular head 13 connected to the No. 2 semicircular plate 12 are both slidably connected to the inner wall of the elliptical support ring 19, and the outer wall of the slider 17 is slidably connected to the inner wall of the sliding opening 22.

[0053] More specifically, by providing the elliptical support ring 19, a support can be provided at the end of the second semicircular plate 12 away from the slider 17 to prevent the second semicircular plate 12 and the detection semicircular head 13 from tilting downward due to gravity or other reasons.

[0054] It should be noted here that there is a certain height difference between the elliptical support ring 19 and the No. 1 semicircular plate 11 and the detection semicircular head 13 connected to the No. 1 semicircular plate 11. This height difference only needs to meet the height of the No. 1 semicircular plate 11 and the detection semicircular head 13 rising after pressing the push plate 5.

[0055] As a preferred solution of the present invention, the upper surfaces of the two operating boxes 4 near one end of the connecting cable 3 are each provided with a No. 1 socket 7, the upper surfaces of the two push plates 5 are each penetrated with a No. 2 socket 9, the upper surfaces of the two push plates 5 are each fixedly connected with an insert block 8, the outer walls of the two insert blocks 8 respectively penetrate the No. 2 socket 9 on the other push plate 5 to the No. 1 socket 7, and the outer walls of the insert blocks 8 are slidably connected to the inner walls of the No. 1 socket 7 and the No. 2 socket 9.

[0056] More specifically, by providing the No. 1 jack 7, the No. 2 jack 9 and the plug block 8, when the multimeter body 1 is not in use, the two operating boxes 4 can be limited by the plug block 8 and the two jacks. This not only increases the connectivity between the two operating boxes 4 to facilitate later storage; it also prevents the push plate 5 from pushing the detection semicircular head 13 to the outside of the operating cavity 14 due to accidental touch or other reasons through the limiting of the plug block 8 and the jacks.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit module testing device, comprising a multimeter body (1), a display screen (2) installed on the upper front side of the multimeter body (1), and two connecting cables (3) installed on the lower front side of the multimeter body (1), wherein the two connecting cables (3) are fixedly connected to an operation box (4) on one side away from the multimeter body (1), an operation cavity (14) is provided inside the operation box (4), a push opening (6) is provided through the upper surface of the operation cavity (14), and the inner wall of the operation cavity (14) near one end of the connecting cable (3) is connected to two a matching detection assembly, a support assembly is connected between the middle parts of the two detection assemblies, a clamping assembly and a guide assembly are connected to the side of the support assembly close to the connecting cable (3), a stop assembly is connected to one side of the clamping assembly, a push plate (5) is connected to the upper end of the support assembly, the other end of the push plate (5) penetrates to the outside of the push opening (6), the end of the stop assembly away from the clamping assembly is connected to the side wall of the push plate (5) located at the end outside the push opening (6), and the detection assembly includes a spring wire (15) and a detection semicircular head (13); The support assembly comprises a first semicircular plate (11) and a second semicircular plate (12), one side of the first semicircular plate (11) and the second semicircular plate (12) are respectively fixedly connected to one side of two detection semicircular heads (13) close to the spring wire (15), the first semicircular plate (11) and the second semicircular plate (12) are respectively sleeved on the outer walls of the two spring wires (15), the sides of the first semicircular plate (11) and the second semicircular plate (12) away from the detection semicircular heads (13) are both connected to the clamping assembly, the side of the first semicircular plate (11) away from the detection semicircular heads (13) is fixedly connected to the lower end of the push plate (5), and the side of the second semicircular plate (12) away from the detection semicircular heads (13) is connected to the guide assembly; The clamping assembly comprises a support rod (25), a torsion spring (27), two fixed blocks (24) and two rotating blocks (26), one end of each of the two fixed blocks (24) being fixedly connected to a side of the second semicircular plate (12) away from the detection semicircular head (13), one end of each of the two rotating blocks (26) being fixedly connected to a side of the first semicircular plate (11) away from the detection semicircular head (13), and the support rod (25) passing through the two fixed blocks (24) and the two rotating blocks. (26), and the outer wall of the support rod (25) is fixedly connected to the inner walls of the two fixed blocks (24), the outer wall of the support rod (25) is rotatably connected to the inner walls of the two rotating blocks (26), the torsion spring (27) is sleeved on the outside of the support rod (25), and the two ends of the torsion spring (27) are respectively fixedly connected to the side walls of the first semicircular plate (11) and the second semicircular plate (12), and the side wall of one of the fixed blocks (24) is connected to the stop assembly.

2. A circuit module testing device according to claim 1, characterized in that: One end of the spring wire (15) is fixedly connected to the inner wall of the operating cavity (14), the other end of the spring wire (15) is connected to one end of the detection semicircular head (13), the other end of the detection semicircular head (13) passes through the inner wall of the operating cavity (14) to the outside of the operating cavity (14), and the detection semicircular heads (13) of the two detection components are combined to form a complete circle, the support component is connected to the side of the detection semicircular heads (13) of the two detection components close to the spring wire (15), and the detection semicircular heads (13), the spring wire (15) and the connecting cable (3) are electrically connected.

3. A circuit module testing device according to claim 2, characterized in that: The backstop assembly comprises a side plate (10), a ratchet plate (20), an extension block (28), a limit block (29), a guide rod (30) and a thrust spring (31); a side wall of the ratchet plate (20) is fixedly connected to an inner wall of the operating chamber (14); one end of the extension block (28) is fixedly connected to a side wall of one of the fixed blocks (24); the other end of the extension block (28) is sleeved and slidably connected to an outer wall of the guide rod (30); and the guide rod ( One end of the side plate (30) is fixedly connected to one side of the limit block (29), the other side of the limit block (29) is matched and aligned with the ratchet plate (20), the two ends of the thrust spring (31) are respectively fixedly connected to the side walls of the extension block (28) and the limit block (29), the lower end of the side plate (10) is fixedly connected to the upper surface of the rear end of the limit block (29), and the upper end of the side plate (10) passes through the top of the push opening (6) and is fixedly connected to the side wall of the push plate (5).

4. A circuit module testing device according to claim 3, characterized in that: The guide assembly comprises a tension spring (16), a slider (17), a slide rod (18) and a support block (23); a slide groove (21) is provided on the bottom surface of the operating chamber (14); the lower end of the support block (23) is fixedly connected to the inner wall of one end of the slide groove (21); the two ends of the slide rod (18) are respectively fixedly connected to the support block (23) and the inner wall of the slide groove (21); the upper end of the slider (17) is fixedly connected to the end of the second semicircular plate (12) away from the detection semicircular head (13); the lower end of the slider (17) is sleeved and slidably connected to the outer wall of the slide rod (18); the two ends of the tension spring (16) are respectively fixedly connected to the side walls of the support block (23) and the slider (17).

5. A circuit module testing device according to claim 4, characterized in that: An elliptical support ring (19) is fixedly connected to the inner wall of the operating cavity (14) away from the end of the connecting cable (3); a sliding opening (22) is provided through the bottom surface of the elliptical support ring (19); the outer wall of the second semicircular plate (12) and the detection semicircular head (13) connected to the second semicircular plate (12) are both slidably connected to the inner wall of the elliptical support ring (19); and the outer wall of the slider (17) is slidably connected to the inner wall of the sliding opening (22).

6. A circuit module testing device according to claim 5, characterized in that: The upper surfaces of the two operation boxes (4) near one end of the connection cable (3) are each provided with a No. 1 plug hole (7), the upper surfaces of the two push plates (5) are each provided with a No. 2 plug hole (9) extending therethrough, the upper surfaces of the two push plates (5) are each fixedly connected with an insert block (8), the outer walls of the two insert blocks (8) respectively extending through the No. 2 plug hole (9) on the other push plate (5) to the No. 1 plug hole (7), and the outer wall of the insert block (8) is slidably connected to the inner walls of the No. 1 plug hole (7) and the No. 2 plug hole (9).

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