Preventive test device for electrical tools

Abstract

The utility model discloses an electrical tool preventability test device comprising a test box, the upper surface of the test box is provided with a port, two support arms are arranged above the test box, the upper surface of each support arm is fixedly connected with a fixed seat, the inner bottom wall of each fixed seat is fixedly provided with a metal contact plate, and the metal contact plate is fixedly connected with the test box. Two sliding plates are fixedly connected to the interior of the test box, and two sliding holes are formed in the side faces, close to each other, of the two sliding plates. According to the device, the test circuit is integrally arranged in the test box, the metal contact plate is arranged in the fixed seat, the first test lamp, the second test lamp, the voltmeter and the control switch are integrated on the panel, so that the operation during the test is facilitated, and the supporting arm, the fixed seat and the test box of the whole device are all made of insulating materials, so that the cost is reduced. Therefore, the tester is not in contact with the exposed circuit during the test, and the safety of the test device during the test process can be ensured.

Description

Technical Field

[0001] The utility model relates to the field of electrical tool testing, in particular to a preventive testing device for electrical tools. Background Art

[0002] Electrical tools refer to tools and equipment used in power engineering, electronic engineering and other related fields. These tools and equipment can be used to install, maintain, test and repair electrical systems and equipment. Common electrical tools include electrician hand tools, test instruments and insulating tools. Insulating rods of voltage levels of 220KV and below, capacitive testers and portable short-circuit grounding wires need to undergo a withstand voltage test before use.

[0003] According to a preventive test device for insulating tools disclosed in Chinese patent number CN212693941U, the invention comprises a frame body, an insulator string distributed at equal distances is fixed on the top outer wall of the frame body, and a conductive connecting rod is welded to the bottom outer wall of the frame body, a switch is fixed to the outer wall on one side of the top of the frame body, and a sliding groove is opened on the outer wall on the other side of the top of the frame body, an I-shaped slider is embedded in the inner wall of the sliding groove, and a support rod is welded on the top of the I-shaped slider, a fixing plate is welded on the top outer wall of the support rod, and a fixing clamp is fixed on the top of the fixing plate, and a voltmeter is connected to the outer wall of the support rod. In the above patent scheme, the frame body is used as a conductive frame, and the support rod is also in a conductive state, which has low safety protection during the test, and the I-shaped slider at the bottom of the support rod is slidably connected to the sliding groove of the frame body. During the power-on test, electric sparks are easily generated due to poor contact. Therefore, we propose a preventive test device for electrical tools to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a preventive test device for electrical tools to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A preventive testing device for electrical tools comprises a testing box, the upper surface of which is provided with a through opening, and the upper part of the testing box is provided with two supporting arms, the upper surface of each supporting arm is fixedly connected to a fixing seat, the inner bottom wall of each fixing seat is fixedly installed with a metal contact plate, the interior of the testing box is fixedly connected with two sliding plates, two sliding holes are provided on the side surfaces of the two sliding plates close to each other, a sliding rod is slidably connected to the interior of each group of the sliding holes, the outer surface of each sliding rod is sleeved with a reset spring, the bottom end of each supporting arm passes through the through opening and is connected to the upper surface of the sliding plate, a panel is fixedly installed with screws on the front side of the testing box, a control switch is fixedly installed on the front side of the panel, a voltmeter is provided on the front side of the panel, a first test lamp and a second test lamp are fixedly inlaid on the front side of the panel, and the testing box, the supporting arms and the fixing seat are all made of insulating materials.

[0007] In a further embodiment, a clamping plate is provided inside each of the fixing seats, an insulating pad is fixedly connected to the bottom surface of the clamping plate, a wire sleeve is fixedly inlaid on the upper surface of each of the fixing seats, a screw rod is threadedly connected to the inside of each of the wire sleeves, the bottom end of each of the screw rods is connected to the upper surface of the clamping plate, and the top end of each of the screw rods is fixedly connected to a rotating wheel.

[0008] In a further embodiment, the ends of the two groups of reset springs that are away from each other are connected to the inner wall of the test box, and the ends of the two groups of reset springs that are close to each other are connected to the sliding plate.

[0009] In a further embodiment, a support seat is fixedly connected to the bottom surface of the test box, and a support frame is fixedly connected to the bottom surface of the support seat.

[0010] In a further embodiment, the control switch is electrically connected to a power cord, and one end of the power cord is electrically connected to a plug.

[0011] In a further embodiment, a wire threading hole is formed on the upper surface of each of the support arms, and each of the metal contact plates is electrically connected to a control switch via a wire.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The device arranges the test circuit as a whole in the test box, arranges the metal contact plate in the fixing seat, and integrates the first test lamp, the second test lamp, the voltmeter and the control switch on the panel, so as to facilitate the operation during the test. Moreover, the support arm, the fixing seat and the test box of the whole device are all made of insulating materials, so that the test personnel will not contact the exposed circuit during the test, thereby ensuring the safety of the test process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural diagram of the preventive testing device for electrical tools.

[0015] Figure 2 This is a top-down view of the test box in the preventive test device for electrical tools.

[0016] Figure 3 This is a schematic diagram of the connection structure of the support arm and the sliding plate in the preventive test device for electrical tools.

[0017] Figure 4 It is a front cross-sectional view of the fixing seat in the preventive test device for electrical tools.

[0018] In the figure: 1. test box; 2. power cord; 3. plug; 4. fixing seat; 5. opening; 6. rotating wheel; 7. first test lamp; 8. second test lamp; 9. supporting seat; 10. supporting frame; 11. voltmeter; 12. control switch; 13. panel; 14. reset spring; 15. sliding hole; 16. sliding rod; 17. sliding plate; 18. threading hole; 19. supporting arm; 20. insulating pad; 21. metal contact plate; 22. clamping plate; 23. thread sleeve; 24. screw rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4In the utility model, a preventive test device for electrical tools comprises a test box 1, a through opening 5 is provided on the upper surface of the test box 1, two support arms 19 are provided above the test box 1, the upper surface of each support arm 19 is fixedly connected to a fixing seat 4, the inner bottom wall of each fixing seat 4 is fixedly installed with a metal contact plate 21, two sliding plates 17 are fixedly connected inside the test box 1, two sliding holes 15 are provided on the side of the two sliding plates 17 close to each other, a sliding rod 16 is slidably connected inside each group of sliding holes 15, a reset spring 14 is sleeved on the outer surface of each sliding rod 16, and the bottom end of each support arm 19 passes through the through opening 5 and connected to the upper surface of the sliding plate 17, a panel 13 is fixedly installed on the front of the test box 1 by screws, a control switch 12 is fixedly installed on the front of the panel 13, a voltmeter 11 is arranged on the front of the panel 13, a first test lamp 7 and a second test lamp 8 are fixedly inlaid on the front of the panel 13, the test box 1, the support arm 19 and the fixing seat 4 are all made of insulating materials, the control switch 12 and the first test lamp 7 are connected in series in the test circuit, and the second test lamp 8 and the voltmeter 11 are connected in parallel in the test circuit, the specific test circuit refers to the existing known patent CN212693941U, and the device focuses on improving the safety of the test device.

[0021] A clamping plate 22 is provided inside each fixing seat 4, and an insulating pad 20 is fixedly connected to the bottom surface of the clamping plate 22. A wire sleeve 23 is fixedly inlaid on the upper surface of each fixing seat 4. A screw rod 24 is threadedly connected inside each screw sleeve 23. The bottom end of each screw rod 24 is connected to the upper surface of the clamping plate 22, and the top end of each screw rod 24 is fixedly connected to a rotating wheel 6. The screw rod 24 is driven to rotate by rotating the rotating wheel 6 on the fixing seat 4, so that the clamping plate 22 clamps and fixes the two ends of the tool to be tested, so that it is in close contact with the metal contact plate 21. The ends of the two sets of reset springs 14 that are away from each other are connected to the inner wall of the test box 1, and the ends of the two sets of reset springs 14 that are close to each other are connected to the sliding plate 17. Through the cooperation of the reset spring 14 and the sliding plate 17, the electrical tool can be clamped between the two fixing seats 4.

[0022] A support seat 9 is fixedly connected to the bottom surface of the test box 1, and a support frame 10 is fixedly connected to the bottom surface of the support seat 9. The test device can be supported by the support seat 9 and the support frame 10. The control switch 12 is electrically connected to the power cord 2, and one end of the power cord 2 is electrically connected to the plug 3. The test circuit can be connected to the power supply through the power cord 2 and the plug 3. A wire threading hole 18 is provided on the upper surface of each support arm 19, and each metal contact plate 21 is electrically connected to the control switch 12 through a wire. The wire threading hole 18 can facilitate the circuit arrangement of the metal contact plate 21 in the support arm 19, and pass through the support arm 19 to be electrically connected to the control switch 12 on the panel 13.

[0023] The working principle of the utility model is:

[0024] When in use, first place the test device in the use position through the support frame 10 and the support seat 9, insert the plug 3 of the power cord 2 into the power supply to connect the test device to the power supply, and then insert the two ends of the tool to be tested into the fixed seat 4. The two support arms 19 clamp the two ends of the tool with the cooperation of the reset spring 14 and the sliding plate 17. The screw rod 24 is driven to rotate by rotating the wheel 6 on the fixed seat 4, so that the clamping plate 22 clamps and fixes the two ends of the tool to be tested, so that it is in close contact with the metal contact plate 21. The detection circuit is turned on by controlling the switch 12. If the insulation of the tool is good, the first test light 7 will go out and the second test light 8 will light up. If the insulation of the tool is average, the voltmeter 11 will show a reading and the first test light 7 will be dimly lit.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A preventive test device for electrical tools, characterized in that: The invention comprises a test box (1), wherein a through opening (5) is provided on the upper surface of the test box (1), two support arms (19) are provided above the test box (1), the upper surface of each support arm (19) is fixedly connected to a fixing seat (4), the inner bottom wall of each fixing seat (4) is fixedly mounted with a metal contact plate (21), the interior of the test box (1) is fixedly connected to two sliding plates (17), the side surfaces of the two sliding plates (17) close to each other are provided with two sliding holes (15), the interior of each group of the sliding holes (15) is slidably connected to a sliding rod (16), and each of the sliding holes (15) is slidably connected to a sliding rod (16). The outer surface of the slide rod (16) is sleeved with a return spring (14), the bottom end of each support arm (19) passes through the through hole (5) and is connected to the upper surface of the sliding plate (17), the front of the test box (1) is fixedly mounted with a panel (13) by screws, the front of the panel (13) is fixedly mounted with a control switch (12), the front of the panel (13) is provided with a voltmeter (11), the front of the panel (13) is fixedly inlaid with a first test lamp (7) and a second test lamp (8), and the test box (1), the support arm (19) and the fixing seat (4) are all made of insulating materials.

2. The preventive testing device for electrical tools according to claim 1, characterized in that: Each of the fixing seats (4) is provided with a clamping plate (22) inside, the bottom surface of the clamping plate (22) is fixedly connected to an insulating pad (20), the upper surface of each of the fixing seats (4) is fixedly inlaid with a wire sleeve (23), the inside of each of the wire sleeves (23) is threadedly connected to a screw rod (24), the bottom end of each of the screw rods (24) is connected to the upper surface of the clamping plate (22), and the top end of each of the screw rods (24) is fixedly connected to a rotating wheel (6).

3. The preventive testing device for electrical tools according to claim 1, characterized in that: The ends of the two groups of reset springs (14) that are away from each other are connected to the inner wall of the test box (1), and the ends of the two groups of reset springs (14) that are close to each other are connected to the sliding plate (17).

4. The electrical tool preventive test device according to claim 1, characterized in that: The bottom surface of the test box (1) is fixedly connected to a support seat (9), and the bottom surface of the support seat (9) is fixedly connected to a support frame (10).

5. The preventive testing device for electrical tools according to claim 1, characterized in that: The control switch (12) is electrically connected to a power line (2), and one end of the power line (2) is electrically connected to a plug (3).

6. The electrical tool preventive test device according to claim 1, characterized in that: A wire threading hole (18) is provided on the upper surface of each support arm (19), and each metal contact plate (21) is electrically connected to a control switch (12) via a wire.

Images