Calibration type LED digital display direct current parameter tester

Abstract

The utility model relates to electronic component testing technical field, and disclose calibration type LED digital display DC parameter tester, including tester body and the installation box of fixed in tester body top left and right sides, still include: the storage box of bolted in the right side of installation box, and the front side of storage box is open setting, the left side fixed support frame of installation box top, and the top of support frame surface is fixed with drive motor, the front side rotationally connected with worm wheel in the inside of installation box, the utility model has the function of taking up the line, can avoid the wire and intertwine each other when not using, reduce the wire damage caused by the pulling or excessive bending to prolong the service life of wire, the automatic storage wire function can make the operation of tester more simple and fast, reduce the time and energy of staff before and after testing to arrange wire, the device still designed independent storage bin for the test wire of different purposes, avoid confusion, further improved the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of electronic component testing technology, specifically a calibration-type LED digital display DC parameter tester. Background Technology

[0002] The calibration-type LED digital display DC parameter tester has a calibration function, which can calibrate its own accuracy through internal and external standard sources, and can also be used to calibrate other instruments to ensure the accuracy of test results. It uses LED digital tubes to display data, which has the characteristics of high brightness, strong anti-interference and easy reading. It is suitable for complex lighting environments and focuses on measuring DC related parameters such as voltage, current, resistance and power.

[0003] Most current calibration-type LED digital display DC parameter testers do not have a cable retraction function. When not in use, the cables are prone to tangling, which can lead to cable damage or loose connections, affecting the accuracy of test results. In addition, the need to frequently plug and unplug the test cables can easily cause problems such as loose interfaces or poor contact. Staff need to spend extra time and effort to tidy up the cables, which affects the user experience. Utility Model Content

[0004] The purpose of this invention is to provide a calibrated LED digital display DC parameter tester to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a calibration-type LED digital display DC parameter tester, comprising a tester body and mounting boxes fixed on the left and right sides of the top of the tester body, and further comprising:

[0006] A storage box is bolted to the right side of the mounting box, and the front side of the storage box is open. A support frame is fixed on the left side of the top of the mounting box, and a drive motor is fixed on the upper surface of the support frame. A worm gear is rotatably connected to the front side inside the mounting box, and a worm is rotatably connected to the rear side inside the mounting box.

[0007] A take-up roller is rotatably connected to the middle of the inside of the storage box. Support plates are fixed on both the left and right sides of the top of the storage box, and a guide structure is fixed above the support plates. A movable plate is fixed on the front side of the guide structure, and a guide cylinder is fixedly connected to the surface below the movable plate.

[0008] Preferably, the worm gear meshes with the worm, and the output shaft of the drive motor extends through the interior of the mounting box and is fixedly connected to the top end of the worm. The left end of the take-up roller extends through the interior of the mounting box and is fixedly connected to the worm gear.

[0009] Preferably, the guiding structure includes a mounting platform, a connecting plate, a driven wheel, a driving wheel, a rotating plate, a push rod, and a movable frame. The mounting platform is positioned above the storage box and between the support plates. The connecting plate is fixed to the left and right sides of the mounting platform, and its bottom is fixedly connected to the surface of the support plate. The driven wheel is rotatably connected to the top of the mounting platform. The driving wheel is fixed to the surface of the output shaft of the drive motor, and the driven wheel is connected to the driving wheel via a belt. The rotating plate is rotatably connected to the bottom of the mounting platform. The push rod is fixed to one side of the bottom of the rotating plate. The movable frame is positioned below the mounting platform, and the movable plate is fixedly connected to the movable frame.

[0010] Preferably, the driven wheel is fixedly connected to the rotating plate, and the bottom of the push rod passes through the movable frame and is slidably connected to the inner wall of the movable frame.

[0011] Preferably, a guide rod is fixed to the rear of the opposite side surface of the support plate, a guide sleeve is sleeved on the middle of the surface of the guide rod, and the guide sleeve is slidably connected to the guide rod, and the rear side of the movable frame is fixedly connected to the guide sleeve.

[0012] Preferably, the surface of the take-up roller is provided with positioning grooves, and the number of positioning grooves is several, and they are evenly distributed on the surface of the take-up roller.

[0013] Preferably, a plurality of balls are embedded on the surface of the inner wall of the guide cylinder, and the balls are evenly distributed on the front and rear sides inside the guide cylinder.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention features a wire retraction function, which prevents wires from tangling when not in use, reduces damage caused by pulling or excessive bending, and extends the lifespan of the wires. The automatic wire retraction function makes the operation of the tester simpler and faster, reducing the time and effort required for staff to organize wires before and after testing. The device also has independent storage compartments for test wires of different uses to avoid confusion, further improving the practicality of the device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional schematic diagram of the storage box in this utility model;

[0018] Figure 3 This is a cross-sectional view of the mounting box in this utility model;

[0019] Figure 4 This is a cross-sectional view of the storage box in this utility model;

[0020] Figure 5 This is a three-dimensional schematic diagram of the guiding structure in this utility model;

[0021] Figure 6 This is a three-dimensional schematic diagram of the guiding structure in this utility model from another perspective.

[0022] In the diagram: 1. Tester body; 2. Mounting box; 3. Storage box; 4. Support frame; 5. Drive motor; 6. Worm gear; 7. Worm; 8. Take-up roller; 9. Support plate; 10. Guide structure; 101. Mounting platform; 102. Connecting plate; 103. Driven wheel; 104. Drive wheel; 105. Rotating plate; 106. Push rod; 107. Moving frame; 11. Movable plate; 12. Guide cylinder; 13. Guide sleeve; 14. Guide rod; 15. Positioning groove; 16. Ball bearing. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0024] Please see Figures 1-6 As shown, the calibration type LED digital display DC parameter tester includes a tester body 1. Mounting boxes 2 are fixed to the left and right sides of the top of the tester body 1. Storage boxes 3 are bolted to the right side of each mounting box 2, and the front of the storage boxes 3 is open. A support frame 4 is fixed to the left side of the top of the mounting box 2, and a drive motor 5 is fixed above the surface of the support frame 4. A worm gear 6 is rotatably connected to the front side inside the mounting box 2, and a worm 7 is rotatably connected to the rear side inside the mounting box 2. A take-up roller 8 is rotatably connected to the middle of the storage box 3. Support plates 9 are fixed to the left and right sides of the top of the storage box 3, and a guide structure 10 is fixed above the support plates 9. A movable plate 11 is fixed to the front side of the guide structure 10, and a guide cylinder 12 is fixedly connected to the surface below the movable plate 11.

[0025] The worm gear 6 meshes with the worm 7, and the output shaft of the drive motor 5 passes through the interior of the mounting box 2 and is fixedly connected to the top of the worm 7. The left end of the take-up roller 8 passes through the interior of the mounting box 2 and is fixedly connected to the worm gear 6. When the drive motor 5 is turned on, the output shaft of the drive motor 5 drives the worm 7 below to rotate, which in turn causes the worm gear 6 to drive the take-up roller 8 on one side to rotate, thereby winding up and unwinding the test wire of the calibration LED digital display DC parameter tester.

[0026] The guide structure 10 includes a mounting platform 101, a connecting plate 102, a driven wheel 103, a driving wheel 104, a rotating plate 105, a push rod 106, and a movable frame 107. The mounting platform 101 is positioned above the storage box 3 and between the support plates 9. The connecting plate 102 is fixed to the left and right sides of the mounting platform 101, and the bottom of the connecting plate 102 is fixedly connected to the surface of the support plate 9. The driven wheel 103 is rotatably connected to the top of the mounting platform 101. The driving wheel 104 is fixed to the surface of the output shaft of the drive motor 5, and the driven wheel 103 is connected to the driving wheel 104 via a belt. The rotating plate 105 is rotatably connected to the bottom of the mounting platform 101. The push rod 106 is fixed to the rotating plate 105. 5. On one side of the bottom, the movable frame 107 is set below the mounting platform 101, and the movable plate 11 is fixedly connected to the movable frame 107. The driven wheel 103 is fixedly connected to the rotating plate 105. The bottom of the push rod 106 passes through the movable frame 107 and is slidably connected to the inner wall of the movable frame 107. When the drive motor 5 is turned on, the output shaft of the drive motor 5 drives the drive wheel 104 to rotate, which in turn causes the driven wheel 103 to drive the rotating plate 105 below to rotate. The push rod 106 moves inside the movable frame 107 and pushes the movable frame 107 to move, which in turn causes the movable plate 11 to move, so that the guide tube 12 guides the test wire of the calibration LED digital display DC parameter tester.

[0027] A guide rod 14 is fixed to the rear of the opposite side surface of the support plate 9. A guide sleeve 13 is fitted in the middle of the surface of the guide rod 14, and the guide sleeve 13 is slidably connected to the guide rod 14. The rear side of the moving frame 107 is fixedly connected to the guide sleeve 13. Through the setting of the guide sleeve 13 and the guide rod 14, the moving frame 107 can be guided, so that the moving frame 107 can only slide horizontally left and right, so as to guide the test wire of the calibration type LED digital display DC parameter tester below for winding operation.

[0028] The surface of the take-up roller 8 is provided with positioning grooves 15. There are several positioning grooves 15, and they are evenly distributed on the surface of the take-up roller 8. When the test wire is wound on the surface of the take-up roller 8, the positioning grooves 15 can be used to fix the test wire in a simple way, so as to prevent the test wire from moving on the surface of the take-up roller 8.

[0029] The inner wall of the guide tube 12 is embedded with a number of balls 16, which are evenly distributed on the front and rear sides inside the guide tube 12. When the test wire passes through the guide tube 12, the balls 16 can change the sliding friction into rolling friction, thereby reducing the friction on the test wire and protecting the surface of the test wire.

[0030] In this technical solution, the test wire is wound around the surface of the take-up roller 8, and one end of the test wire passes through the storage box 3 and is connected to the calibration type LED digital display DC parameter tester below, while the connector of the test wire is located on the front side of the guide tube 12.

[0031] Working principle: When the operator needs to test electronic components, the operator first pulls the corresponding test wire on the corresponding side according to the different test items. The corresponding drive motor 5 is turned on, which causes the output shaft of the drive motor 5 to drive the worm gear 7 below to rotate. This causes the worm wheel 6 to drive the take-up roller 8 to rotate, thus unwinding the test wire wound on the surface of the take-up roller 8. The operator can then pull out the test wire and connect it to the electronic component. The operator opens the test instrument body 1 and begins to test the electronic component. After the test is completed, the operator separates the electronic component from the test wire, and the drive motor 5 is turned on again, causing the take-up roller 8 to reverse. The take-up roller 8 winds up the test wire. During winding, the driven wheel 103 above also drives the rotating plate 105 to rotate, which in turn causes the movable plate 11 to drive the guide cylinder 12 to move left and right, so that the test wire is evenly wound on the surface of the take-up roller 8. This completes the wire winding and unwinding operation of the test wire of the calibration LED digital display DC parameter tester.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A calibration-type LED digital display DC parameter tester, comprising a tester body (1) and mounting boxes (2) fixed on the left and right sides of the top of the tester body (1), characterized in that, Also includes: A storage box (3) is bolted to the right side of the mounting box (2), and the front side of the storage box (3) is open. A support frame (4) is fixed on the left side of the top of the mounting box (2), and a drive motor (5) is fixed on the upper surface of the support frame (4). A worm gear (6) is rotatably connected to the front side inside the mounting box (2), and a worm (7) is rotatably connected to the rear side inside the mounting box (2). Rotary winding roller (8) is connected to the middle of the storage box (3). Support plates (9) are fixed on the left and right sides of the top of the storage box (3). A guide structure (10) is fixed above the support plate (9). A movable plate (11) is fixed on the front side of the guide structure (10). A guide cylinder (12) is fixedly connected to the surface below the movable plate (11).

2. The calibration-type LED digital display DC parameter tester according to claim 1, characterized in that: The worm wheel (6) meshes with the worm (7), and the output shaft of the drive motor (5) passes through the interior of the mounting box (2) and is fixedly connected to the top end of the worm (7). The left end of the take-up roller (8) passes through the interior of the mounting box (2) and is fixedly connected to the worm wheel (6).

3. The calibration-type LED digital display DC parameter tester according to claim 1, characterized in that: The guide structure (10) includes a mounting platform (101), a connecting plate (102), a driven wheel (103), a driving wheel (104), a rotating plate (105), a push rod (106), and a moving frame (107). The mounting platform (101) is positioned above the storage box (3) and between the support plates (9). The connecting plate (102) is fixed to the left and right sides of the mounting platform (101), and the bottom of the connecting plate (102) is fixedly connected to the surface of the support plate (9). The driven wheel (103) rotates... The drive wheel (104) is fixed to the surface of the output shaft of the drive motor (5), and the driven wheel (103) is connected to the drive wheel (104) via a belt. The rotating plate (105) is rotatably connected to the bottom of the mounting platform (101). The push rod (106) is fixed to one side of the bottom of the rotating plate (105). The movable frame (107) is set below the mounting platform (101), and the movable plate (11) is fixedly connected to the movable frame (107).

4. The calibration-type LED digital display DC parameter tester according to claim 3, characterized in that: The driven wheel (103) is fixedly connected to the rotating plate (105), and the bottom of the push rod (106) passes through the movable frame (107) and is slidably connected to the inner wall of the movable frame (107).

5. The calibration-type LED digital display DC parameter tester according to claim 3, characterized in that: A guide rod (14) is fixed to the rear of the opposite side surface of the support plate (9). A guide sleeve (13) is sleeved on the middle of the surface of the guide rod (14), and the guide sleeve (13) is slidably connected to the guide rod (14). The rear side of the movable frame (107) is fixedly connected to the guide sleeve (13).

6. The calibration-type LED digital display DC parameter tester according to claim 1, characterized in that: The surface of the take-up roller (8) is provided with positioning grooves (15), and there are several positioning grooves (15), which are evenly distributed on the surface of the take-up roller (8).

7. The calibration-type LED digital display DC parameter tester according to claim 1, characterized in that: The inner wall of the guide cylinder (12) is embedded with a number of balls (16), and the balls (16) are evenly distributed on the front and rear sides inside the guide cylinder (12).

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