A safe electricity detection device

Abstract

The present invention provides a safe electricity use detection device, comprising: a display component, a paper pressing component, an insulating box, an electromagnetic coil, a guide component and a detection component. The display component is movably installed at the lower end of the insulating box, and a paper pressing is fixed on the front side of the display component. Compared with the prior art, the present invention has the following beneficial effects: the setting of the drawing piece, in conjunction with the electromagnetic coil, the reset spring and the iron core, can show the structure of the detection component to the operator in a structure similar to an electrocardiogram line graph, greatly improving the intuitiveness of the detection result and facilitating the operator to quickly determine the detection result. With the setting of the insulating box, the electromagnetic coil, the guide component and the detection component, the operator can intuitively see the fluctuation of the current over a period of time through the running track left on the paper tape, and then judge the safety of electricity use, which greatly improves the convenience of equipment operation and the intuitiveness of the detection result.

Description

Technical Field

[0001] The present invention belongs to the technical field of electricity detection equipment, and in particular relates to a safe electricity detection device. Background Art

[0002] Existing safety-related electrical monitoring devices have numerous shortcomings when it comes to visually displaying test results, primarily in terms of the effectiveness of information transmission and user understanding. First, many test devices present results in numerical or graphical form. While this may be intuitive for professional technicians, it's difficult for most users to fully understand the results, often leading to misinterpretation or disregard of them.

[0003] To address these issues, conventional approaches include developing unified standard specifications, such as establishing graphical display standards to help users better identify and understand test results. However, the basis for establishing graphical display standards requires specific testing equipment that outputs a graphical table to facilitate user understanding. Therefore, we hope to design a safe electricity use detection device with a new structure to solve this problem. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention aims to provide a safe electricity use detection device to solve the problems raised in the above background technology.

[0005] The present invention is implemented through the following technical solution: A safe electricity use detection device includes: a display component, a paper pressing component, an insulating box, an electromagnetic coil, a guide component and a detection component, wherein the display component is movably mounted on the lower end of the insulating box, and the paper pressing component is fixed to the front side of the display component;

[0006] The paper pressing assembly is placed at the rear side of the lower end of the insulating box, an electromagnetic coil is installed inside the insulating box, a guide assembly is fixedly installed inside the insulating box, and a detection assembly is movably installed in the middle of the insulating box;

[0007] The middle part of the guide assembly is placed inside the electromagnetic coil, and the upper part of the detection assembly is movably installed inside the electromagnetic coil through the guide assembly.

[0008] As a preferred embodiment, the display assembly includes a housing 1, a reel, a battery module, and a reel. The reel is rotatably mounted on the upper left side of the housing 1, the battery module is mounted on the left bottom side of the housing 1, and the reel is fixed on the right side of the housing 1.

[0009] The left side, right side and rear side of the upper end of the shell are provided with a positioning frame with a U-shaped cross-section. The upper surface of the shell is penetrated upward to form a through groove. The front side and the upper end of the positioning frame are both open. The left side and the right side of the front surface of the shell are respectively penetrated backward to form a strip groove. A guide roller is rotatably installed on the side of the front end of each strip groove close to the paper pressing assembly. The front end part of each guide roller extends a strip groove. The setting of the display component can intuitively display the structure detected by the detection component in the form of a broken line graph, which greatly improves the intuitiveness of the display of the electrical safety detection results of the entire device and facilitates people's understanding.

[0010] As a preferred embodiment, the winding member includes a motor, a small gear 1, and a large gear 1. The small gear 1 is fixed to the end of the motor output shaft. The right end of the small gear is meshed with the left end of the large gear 1. A rotating shaft 1 is fixed in the middle of the large gear 1. The rotating shaft 1 is rotatably mounted inside the right end of the housing 1 through a fixing plate 1.

[0011] A second small gear is fixed to the lower end of the rotating shaft, the right end of the second small gear is meshed with the left end of the second large gear, a second rotating shaft is fixed in the middle of the second large gear, the lower end of the second rotating shaft is rotatably mounted on the right side of the first housing through the second fixing plate, and the second rotating shaft is placed on the right side of the first rotating shaft;

[0012] A winding roller is fixed to the upper end of the second rotating shaft, a limiting ring plate 2 is provided at the lower end of the winding roller, and a limiting ring plate 1 is provided at the lower end of the unwinding roller. The height of the upper side of the limiting ring plate 1 is flush with the height of the upper side of the limiting ring plate 2.

[0013] As a preferred embodiment, the paper pressing assembly includes a base plate, a positioning frame and a pad, wherein the pad is provided in the middle of the front surface of the base plate, and a positioning frame is provided on the left and right sides of the front surface of the base plate respectively, and the two positioning frames are distributed in an axisymmetric structure with respect to the pad. The pad is a rubber plate, and the height of the pad is flush with the height of the base plate.

[0014] The positioning frame includes a stand, a supporting roller and a pressure roller. The support roller is rotatably mounted on the rear end of the stand. The front surface of the supporting roller is flush with the front surface of the pad. A pressure spring is fixed on the upper and lower sides of the front end of the stand.

[0015] A slider is fixed to the rear end of each compression spring, and a guide block is provided at the end of each slider close to the stand. A slide groove is provided on the inner wall of the lower end and the inner wall of the upper end of the stand, respectively, and the slider is slidably connected to the slide groove through the guide block;

[0016] A pressure roller is rotatably installed between the two sliders. The pressure roller is located in front of the supporting roller, and a gap is provided between the supporting roller and the pressure roller. The setting of the paper pressing assembly can tighten the drawing paper so that it can move in a stable state.

[0017] As a preferred embodiment, the insulating box includes a box body and mounting feet, two mounting feet are respectively provided on the rear side of the left surface and the rear side of the right surface of the insulating box, and a sponge ring is glued to the middle of the front side of the lower surface of the box body;

[0018] The upper end of the electromagnetic coil is provided with a terminal 1, and the lower end of the electromagnetic coil is provided with a terminal 2. The upper end of the terminal 1 passes through the upper end of the insulating box and extends upward. The upper end of the terminal 2 passes through the upper end of the insulating box and extends upward. The terminal 2 is placed on the front side of the stand at the right end of the bottom plate.

[0019] The length of the lower end of the box body is the same as the length inside the positioning frame, and the width of the lower end of the box body is greater than the width of the outer shell. In actual use, the current in the electromagnetic coil moves from top to bottom, and the purpose of detection is achieved based on the principle of electromagnetism and the current being proportional to the electromagnetic intensity, making the entire detection equipment simple in structure and low in price.

[0020] As a preferred embodiment, the guide assembly includes a first guide rod, a second guide rod, and an oil chamber. The specifications of the first guide rod are the same as those of the second guide rod. The first guide rod and the second guide rod are symmetrically distributed about the axis of the oil chamber. The outer wall of the upper end of the second guide rod is radially inwardly provided with a plurality of second oil holes distributed in an annular structure. The outer wall of the upper side of the second guide rod is radially inwardly provided with a plurality of first oil holes distributed in an annular structure.

[0021] The oil hole 1 is located directly below the oil hole 2. The structure and size of the oil hole 1 are the same as those of the oil hole 2. The inner diameters of the oil hole 1 and the oil hole 2 gradually decrease from the inside to the outside. The outer ends of the oil hole 1 and the oil hole 2 are lower than the inner ends and are set at an inclined angle of 60 degrees.

[0022] As a preferred embodiment, the guide rod 1 is provided with an oil passage 1 inside, the guide rod 2 is provided with an oil passage 2 inside, the upper end of the oil passage 1 upwardly penetrates the upper end of the guide rod 1, the upper end of the guide rod 1 is threadedly connected to a sealing cap 1, the upper end of the guide rod 1 upwardly penetrates the upper end of the box body, and the sealing cap 1 is placed above the upper end of the box body;

[0023] The upper end of the second oil passage passes upward through the upper end of the second guide rod, the upper end of the second guide rod is threadedly connected to the second sealing cap, the upper end of the second guide rod passes upward through the upper end of the box body, and the second sealing cap is placed above the upper end of the box body;

[0024] The lower ends of the guide rods 1 and 2 are fixedly connected to the left and right sides of the upper end of the oil chamber respectively; the lower end of the oil passage passes downward through the lower end of the guide rods and communicates with the interior of the oil chamber; the lower end of the oil passage 2 passes downward through the lower end of the guide rods and communicates with the interior of the oil chamber;

[0025] A sponge ring 1 is fixed in the middle of the upper end of the oil chamber, and a guide hole is formed by penetrating downward through the middle of the upper end of the oil chamber. The upper end of the guide hole is connected with the interior of the sponge ring 1, and the lower end of the middle of the oil chamber is radially inwardly penetrated to form a plurality of oil holes 3 distributed in a ring structure. The interior of the oil chamber is connected with the lower side of the guide hole through the plurality of oil holes 3. The setting of the guide component can guide and lubricate the detection component so that it can operate stably.

[0026] As a preferred embodiment, the detection assembly includes an iron core, a reset spring and a painting member, the iron core includes a column head, a second sponge ring and a connecting rod, a connecting rod is provided in the middle of the lower end of the column head, the axis of the connecting rod is collinear with the axis of the column head, and the diameter of the column head is larger than the diameter of the connecting rod;

[0027] The left and right sides of the upper end of the column head respectively penetrate downward to form a sliding hole, the inner diameter of the sliding hole matches the diameter of the guide rod 1 and the guide rod 2, and a sponge ring 2 is fixed on the upper and lower sides of each sliding hole, and the upper and lower ends of the sliding hole are respectively connected to the interior of a sponge ring 2;

[0028] The lower ends of the guide rods 1 and 2 are slidably connected to the column heads through sliding holes, the lower ends of the column heads abut against the upper ends of the reset springs, and the diameter of the column heads is larger than the diameter of the entire reset spring, and the lower ends of the reset springs are fixedly connected to the bottom of the box body.

[0029] As a preferred embodiment, the painting member includes a thin rod, a fixing block, and a screw knob, wherein the upper end of the thin rod is provided with a threaded section, and the upper end of the thin rod is threadedly connected to the lower end of the connecting rod through the threaded section, and the axis of the thin rod is collinear with the axis of the connecting rod;

[0030] The upper part of the thin rod passes through the sponge ring downward and passes through the middle of the oil chamber through the guide hole. The lower end of the thin rod passes through the front side of the lower end of the box body downward. The lower end of the thin rod is slidably connected to the middle of the sponge ring. A fixing block is provided at the lower end of the thin rod, and the fixing block is a rectangular structure.

[0031] The fixing block is penetrated from front to back to form a fixing hole, and the front and rear sides of the lower end of the fixing block are respectively threadedly connected with a screw knob, and the upper end of the screw knob is movably installed at the bottom of the fixing hole. In actual use, the thin rod can be made of high-strength wear-resistant insulating plastic material or insulating fiberglass material, which can improve the safety of equipment operation.

[0032] After adopting the above technical solution, the beneficial effects of the present invention are as follows: by providing the paper pressing assembly and the display assembly, the installation method of the entire display assembly is simple, and the split structure is convenient for subsequent disassembly and assembly into a paper roll, as well as maintenance or replacement of parts of the equipment, which greatly reduces the difficulty of equipment operation and helps to improve the convenience of equipment operation;

[0033] The setting of the drawing piece, in conjunction with the electromagnetic coil, the return spring and the iron core, can show the operator the structure of the detection component in a structure similar to an electrocardiogram line graph, greatly improving the intuitiveness of the test results and facilitating the operator to quickly determine the test results;

[0034] The setting of the insulation box, electromagnetic coil, guide assembly and detection assembly allows the operator to visually see the current fluctuation over a period of time through the running track left on the paper tape, and then judge the safety of electricity use, which greatly improves the convenience of equipment operation and the intuitiveness of detection results;

[0035] The guide rods 1 and 2 in the guide assembly can guide and limit the column head, so that the entire detection assembly can move smoothly, thereby ensuring the drawing stability of the motion trajectory. When the drawing piece moves up and down, the thin rod passes through the guide hole of the oil chamber. Since the lower end of the guide hole is connected to the inside of the oil chamber through multiple oil holes 3, the lubricating oil stored in the oil chamber enters the guide hole under the action of the oil hole 3 to lubricate the outer wall of the thin rod, making the thin rod smoother when moving up and down, reducing resistance and improving the accuracy of the detection results. The setting of sponge ring 1 and sponge ring 3 can collect excess lubricating oil on the outer wall of the thin rod, while keeping the equipment clean, so that the outer wall of the thin rod is always attached with a layer of oil film, so that the lubricating oil in the oil chamber has a longer service life and does not need to be frequently added. The guide assembly with its own lubrication structure can greatly reduce the friction between the two when guiding the detection assembly, thereby helping to improve the accuracy of the detection structure, while ensuring that the drawing piece can draw a more beautiful trajectory, which is convenient for operators to watch. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 The figure is a schematic diagram of the overall structure of a safe electricity use detection device of the present invention.

[0038] Figure 2 This is a schematic diagram of the internal structure of a safe electricity use detection device of the present invention.

[0039] Figure 3 This is a schematic diagram of the connection between an insulating box and an electromagnetic coil of a safe electricity use detection device of the present invention.

[0040] Figure 4 This is a schematic diagram of the guide component structure of a safe electricity use detection device of the present invention.

[0041] Figure 5 This is a schematic diagram of the oil chamber structure of a safety electricity detection device of the present invention.

[0042] Figure 6 for Figure 5 Schematic diagram of the enlarged portion B.

[0043] Figure 7 for Figure 5 Enlarged schematic diagram at point C in the middle.

[0044] Figure 8 for Figure 6 Schematic diagram of the enlarged point D in the middle.

[0045] Figure 9 This is a schematic diagram of the structure of a drawing component of a safe electricity use detection device of the present invention.

[0046] Figure 10 This is a schematic diagram of the internal structure of a display component of a safe electricity use detection device of the present invention.

[0047] Figure 11 This is a schematic diagram of the paper pressing assembly structure of a safe electricity use detection device of the present invention.

[0048] Figure 12 This is a schematic diagram of a positioning frame structure of a safety electricity detection device of the present invention.

[0049] Figure 13 This is a schematic diagram of the winding structure of a safety electricity detection device of the present invention.

[0050] Figure 14 for Figure 1 A magnified schematic diagram.

[0051] Figure 15 This is a schematic diagram of a paper tape structure used in a safe electricity use detection device of the present invention.

[0052] In the figure, 100 - display assembly, 110 - housing 1, 111 - positioning frame, 112 - through slot, 113 - strip slot, 114 - guide roller, 120 - unwinding roller, 130 - battery module, 140 - winding element, 141 - motor, 142 - small gear 1, 143 - large gear 1, 144 - rotating shaft 1, 145 - small gear 2, 146 - large gear 2, 147 - rotating shaft 2, 148 - winding roller;

[0053] 200-paper pressing assembly, 210-bottom plate, 220-positioning frame, 221-support roller, 222-stand, 223-pressing roller, 224-pressing spring, 225-slider, 230-pad;

[0054] 300-insulation box, 310-box body, 320-mounting foot;

[0055] 400- electromagnetic coil;

[0056] 500-guide assembly, 510-guide rod 1, 520-guide rod 2, 521-oil hole 1, 522-oil hole 2, 530-oil chamber, 531-sponge ring 1, 532-oil hole 3, 533-guide hole;

[0057] 600-detection component, 610-iron core, 611-column, 612-sliding hole, 613-sponge ring 2, 614-connecting rod, 620-reset spring, 630-painting piece, 631-thin rod, 632-fixing block, 633-screw knob, 634-fixing hole. DETAILED DESCRIPTION

[0058] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0059] See also Figures 1 to 15 The present invention provides a technical solution: a safe electricity use detection device, comprising: a display assembly 100, a paper pressing assembly 200, an insulating box 300, an electromagnetic coil 400, a guide assembly 500, and a detection assembly 600. The display assembly 100 is movably mounted on the lower end of the insulating box 300, and the paper pressing assembly 200 is fixed to the front side of the display assembly 100.

[0060] The paper pressing assembly 200 is placed at the rear side of the lower end of the insulating box 300. An electromagnetic coil 400 is installed inside the insulating box 300. A guide assembly 500 is fixedly installed inside the insulating box 300. A detection assembly 600 is movably installed in the middle of the insulating box 300.

[0061] The middle portion of the guide assembly 500 is placed inside the electromagnetic coil 400 , and the upper portion of the detection assembly 600 is movably installed inside the electromagnetic coil 400 through the guide assembly 500 .

[0062] See also Figures 1 to 2 as well as Figures 10 to 14 The display assembly 100 includes a housing 110, a reel 120, a battery module 130, and a reel 140. The reel 120 is rotatably mounted on the upper left side of the housing 110, the battery module 130 is mounted on the left bottom side of the housing 110, and the reel 140 is fixed on the right side of the housing 110.

[0063] A positioning frame 111 with a U-shaped cross-section is provided on the left, right and rear sides of the upper end of the shell 110. A through groove 112 is formed by penetrating upward on the upper surface of the shell 110. The front side and the upper end of the positioning frame 111 are both open. The left and right sides of the front surface of the shell 110 are respectively penetrated backward to form a strip groove 113. A guide roller 114 is rotatably installed on the side of the front end of each strip groove 113 close to the paper pressing component 200, and the front end part of each guide roller 114 extends from the strip groove 113. The setting of the display component 100 can intuitively display the structure detected by the detection component 600 in the form of a broken line graph, which greatly improves the intuitiveness of the display of the electrical safety detection results of the entire device and facilitates people's understanding.

[0064] The winding member 140 includes a motor 141, a small gear 142, and a large gear 143. The small gear 142 is fixed to the end of the output shaft of the motor 141. The right end of the small gear is meshed with the left end of the large gear 143. A rotating shaft 144 is fixed in the middle of the large gear 143. The rotating shaft 144 is rotatably mounted inside the right end of the housing 110 through a fixing plate 1.

[0065] A small gear 2 145 is fixed to the lower end of the rotating shaft 144. The right end of the small gear 2 145 is meshed with the left end of the large gear 2 146. A rotating shaft 2 147 is fixed in the middle of the large gear 2 146. The lower end of the rotating shaft 2 147 is rotatably mounted on the right side of the interior of the housing 110 via a fixing plate 2. The rotating shaft 2 147 is placed on the right side of the rotating shaft 144.

[0066] A winding roller 148 is fixed to the upper end of the second rotating shaft 147, and a limiting ring plate 2 is set at the lower end of the winding roller 148. A limiting ring plate 1 is set at the lower end of the unwinding roller 120, and the height of the upper side of the limiting ring plate 1 is flush with the height of the upper side of the limiting ring plate 2.

[0067] The paper pressing assembly 200 includes a base plate 210, a positioning frame 220, and a pad 230. The pad 230 is provided in the middle of the front surface of the base plate 210. A positioning frame 220 is provided on the left and right sides of the front surface of the base plate 210. The two positioning frames 220 are arranged in an axisymmetric structure with respect to the pad 230. The pad 230 is a rubber sheet and its height is flush with the height of the base plate 210.

[0068] The positioning frame 220 includes a stand 222, a supporting roller 221, and a pressure roller 223. The support roller 221 is rotatably mounted on the rear end of the stand 222. The front surface of the support roller 221 is flush with the front surface of the pad 230. A pressure spring 224 is fixed to the upper and lower sides of the front end of the stand 222.

[0069] A slider 225 is fixed to the rear end of each compression spring 224. A guide block is provided at one end of each slider 225 close to the stand 222. A slide groove is provided on the inner wall of the lower end and the inner wall of the upper end of the stand 222. The slider 225 is slidably connected to the slide groove through the guide block.

[0070] A pressure roller 223 is rotatably installed between the two sliders 225. The pressure roller 223 is located in front of the supporting roller 221, and a gap is provided between the supporting roller 221 and the pressure roller 223. The setting of the paper pressing assembly 200 can tighten the drawing paper so that it can move in a stable state.

[0071] As the first embodiment of the present invention, in actual use, the rolled paper tape is sleeved on the upper side of the unwinding roller 120 inside the left side of the shell, and the initial end of the rolled paper tape is passed out from the strip groove 113 on the left side of the front end of the shell 110, and then passed into the positioning frame 220 on the left side of the bottom plate 210. The initial end of the rolled paper tape passes between the supporting roller 221 and the pressure roller 223 of the positioning frame 220 on the left side of the bottom plate 210, and then passes between the supporting roller 221 and the pressure roller 223 of the positioning frame 220 on the right side of the bottom plate 210, and passes through the strip groove 113 at the right end of the shell 110 again to the inside of the right end of the shell 110 and is fixedly connected to the winding roller 148 on the winding member 140;

[0072] Then, the housing 110 can be brought into contact with the rear side of the lower end of the insulating box 300 through the positioning frame 111 at its upper end and positioned. Then, the knob can be tightened to complete the positioning and installation of the display assembly 100 and the paper pressing assembly 200. After the installation is completed, the detection assembly 600 can be powered on to perform electrical safety testing. The installation method of the entire display assembly 100 is simple, and the split structure facilitates subsequent disassembly and assembly into a paper roll, as well as maintenance or replacement of parts of the equipment, greatly reducing the difficulty of equipment operation and helping to improve the convenience of equipment operation.

[0073] After the detection component 600 is powered on, the motor 141 in the winding member 140 is immediately started. The motor 141 can be a product model available on the market. The motor 141 drives the small gear 142 to rotate, and drives the large gear 143 to rotate. The large gear 143 drives the small gear 2 145 to rotate through the rotating shaft 144, and the small gear drives the large gear 2 146 to rotate through the meshing. Since the large gear 2 146 rotates coaxially with the rotating shaft 2 147, it drives the upper end of the rotating shaft 2 147 to rotate. The winding roller 148 rotates, and since the entire gear group transmission structure is set with a reduction ratio, after two levels of speed reduction (the number of speed reduction levels can be increased according to needs, and the number of speed reduction levels is not recommended to be greater than three, as too slow a paper tape moving speed affects the judgment of the detection result), the rotation speed of the large gear 2 146 is slow, which in turn makes the winding roller 148 rotate slowly, and further makes the speed of pulling the paper tape slow. When the winding roller 148 rotates slowly, it can pull the paper tape from left to right at a uniform speed;

[0074] When the paper tape is pulled out from the strip groove 113 at the left end of the shell 110, the inner side of the paper tape is connected with the front side of the guide roller 114 in the strip groove 113 at the left end of the shell 110 by rolling, so as to avoid large friction with the shell 110 directly, and then smoothly enters between the supporting roller 221 and the pressure roller 223 at the left end of the bottom plate 210 under the action of the guide roller 114. The supporting roller 221 and the pressure roller 223 are both rotatable to reduce the friction on the paper tape, and the pressure roller 223 can adjust its pressure by itself under the action of the pressure spring 224 and the slider 225, so that the paper tape is always rolled by the supporting roller 221 and the pressure roller 223, so as to ensure its stable movement;

[0075] When the paper tape runs to the front side of the pad 230, the rear side of the paper tape is slidably connected to the front side of the pad 230. After the drawing of the drawing piece 630, it is pulled to the right by the winding roller 148, and then passes through a positioning frame 220 and a guide roller 114 again and is wound up by the winding roller 148 from the strip groove 113 on the right side of the shell 110, thereby completing the drawing of the test results. The structure of the detection component 600 can be displayed to the operator in a structure similar to an electrocardiogram line graph, which greatly improves the intuitiveness of the test results and facilitates the operator to quickly determine the test results. The smoother the trajectory line, the more stable the current. Conversely, it means that the current fluctuates greatly and there is a safety hazard in electricity use.

[0076] See also Figures 1 to 8 as well as Figure 15 The insulating box 300 includes a box body 310 and a mounting foot 320. Two mounting feet 320 are respectively provided on the rear side of the left surface and the rear side of the right surface of the insulating box 300. A sponge ring 3 is glued to the middle of the front side of the lower surface of the box body 310.

[0077] The electromagnetic coil 400 has a first terminal disposed at its upper end and a second terminal disposed at its lower end. The first terminal extends upward through the upper end of the insulating box 300 and partially extends upward. The second terminal extends downward through the upper end of the insulating box 300 and partially extends upward. The second terminal is located in front of the stand 222 at the right end of the base plate 210.

[0078] The length of the lower end of the box body 310 is the same as the length inside the positioning frame 111, and the width of the lower end of the box body 310 is greater than the width of the outer shell 110. In actual use, the current in the electromagnetic coil 400 moves from top to bottom, and the purpose of detection is achieved based on the principle of electromagnetism and the current being proportional to the electromagnetic intensity, making the entire detection equipment simple in structure and low in price.

[0079] The guide assembly 500 includes a first guide rod 510, a second guide rod 520, and an oil chamber 530. The specifications of the first guide rod 510 and the second guide rod 520 are the same. The first guide rod 510 and the second guide rod 520 are symmetrically arranged about the axis of the oil chamber 530. The upper outer wall of the second guide rod 520 is radially inwardly provided with a plurality of second oil holes 522 distributed in an annular structure. The upper outer wall of the second guide rod 520 is radially inwardly provided with a plurality of first oil holes 521 distributed in an annular structure.

[0080] Oil hole 1 521 is located directly below oil hole 2 522 . The structure and size of oil hole 1 521 are the same as those of oil hole 2 522 . The inner diameters of oil hole 1 521 and oil hole 2 522 gradually decrease from the inside to the outside. The outer ends of oil hole 1 521 and oil hole 2 522 are lower than the inner ends and are set at an inclined angle of 60 degrees.

[0081] An oil passage 1 is provided inside the guide rod 1 510 , and an oil passage 2 is provided inside the guide rod 2 520 . The upper end of the oil passage 1 upwardly penetrates the upper end of the guide rod 1 510 . A sealing cap 1 is threadedly connected to the upper end of the guide rod 1 510 . The upper end of the guide rod 1 510 upwardly penetrates the upper end of the box body 310 , and the sealing cap 1 is placed above the upper end of the box body 310 .

[0082] The upper end of the second oil passage passes upward through the upper end of the second guide rod 520, the upper end of the second guide rod 520 is threadedly connected to the second sealing cap, the upper end of the second guide rod 520 passes upward through the upper end of the box body 310, and the second sealing cap is placed above the upper end of the box body 310;

[0083] The lower ends of guide rod 1 510 and guide rod 2 520 are fixedly connected to the left and right sides of the upper end of oil chamber 530, respectively. The lower end of oil passage downwardly passes through the lower end of guide rod 1 510 and communicates with the interior of oil chamber 530. The lower end of oil passage 2 downwardly passes through the lower end of guide rod 2 520 and communicates with the interior of oil chamber 530.

[0084] A sponge ring 531 is fixed in the middle of the upper end of the oil chamber 530, and a guide hole 533 is formed by penetrating downwardly through the middle of the upper end of the oil chamber 530. The upper end of the guide hole 533 is connected with the interior of the sponge ring 531, and the lower end of the middle of the oil chamber 530 is radially inwardly penetrated to form a plurality of oil holes 532 distributed in a ring structure. The interior of the oil chamber 530 is connected with the lower side of the interior of the guide hole 533 through the plurality of oil holes 532. The setting of the guide component 500 can guide and lubricate the detection component 600, so that it can operate stably.

[0085] As the second embodiment of the present invention, in actual use, the terminal 1 and the terminal 2 of the electromagnetic coil 400 in the insulating box 300 are connected to the input end and the output end of the wire respectively to ensure that the current flows downward from the upper side of the electromagnetic coil 400. After the electromagnetic coil 400 is energized, based on the principle of electromagnetism, the electromagnetic coil 400 will generate a magnetic field and push the iron core 610 in the detection component 600 downward, and the elastic force of the reset spring 620 is just balanced with the gravity of the iron core 610 and the downward magnetic force generated by the magnetic field. If the current passing through the electromagnetic coil 400 is unstable and the current passing through is large, When the magnetic force generated becomes larger, the downward pressure of the iron core 610 increases, pressing the return spring 620 downward, and driving the drawing piece 630 at the lower end of the iron core 610 to move downward, thereby leaving a corresponding movement track on the paper tape through the drawing pen installed at the lower end of the drawing piece 630. The drawing pen can be a pencil or a carbon ink pen. When installing, choose a drawing pen of appropriate length, insert the writing end into the fixing hole 634 of the fixing block 632, so that the writing tip can just abut against the front surface of the paper tape to ensure smooth writing, and then tighten the two screw knobs 633 on the lower side of the fixing block 632 to complete the installation;

[0086] If the current is small, the elastic force of the return spring 620 is greater than the combined force of the gravity of the iron core 610 and the magnetic field, and the entire iron core 610 will move upward under the action of the spring, so that the drawing piece 630 drives the drawing pen to move upward, and then draws the corresponding motion trajectory on the front side of the paper tape. Figure 15As shown in , the front surface of the paper tape is divided into a current stable area, a low current warning area, a low current danger area, a high current warning area and a high current danger area. If the motion trajectory drawn by the drawing pen on the paper tape is always in the current stable area, it means that the current in the circuit is in a stable state. If most of the motion trajectory is in the current stable area and a small part is in the low current warning area or the high current warning area, it means that the current in the circuit is unstable and corresponding inspections are required to ensure the safety of power supply in the circuit. If part or most of the motion trajectory is in the low current warning area, the high current warning area or even the high current danger area or the low current danger area, it is necessary to immediately cut off the power supply to the circuit and carefully check the circuit and electrical equipment. The operator can intuitively see the current fluctuation over a period of time through the running trajectory left on the paper tape, and then judge the safety of power supply, which greatly improves the convenience of equipment operation and the intuitiveness of the test results.

[0087] See also Figures 1 to 9 The detection assembly 600 includes an iron core 610, a return spring 620 and a drawing member 630. The iron core 610 includes a column head 611, a second sponge ring 613 and a connecting rod 614. The connecting rod 614 is provided in the middle of the lower end of the column head 611. The axis of the connecting rod 614 is collinear with the axis of the column head 611. The diameter of the column head 611 is larger than the diameter of the connecting rod 614.

[0088] A sliding hole 612 is formed downwardly through the left and right sides of the upper end of the column head 611. The inner diameter of the sliding hole 612 matches the diameter of the guide rod 1 510 and the guide rod 2 520. A sponge ring 613 is fixed to the upper and lower sides of each sliding hole 612. The upper and lower ends of the sliding holes 612 are respectively connected to the interior of a sponge ring 613.

[0089] The lower ends of guide rod 1 510 and guide rod 2 520 are slidably connected to the column head 611 through the sliding hole 612. The lower end of the column head 611 abuts against the upper end of the return spring 620. The diameter of the column head 611 is larger than the overall diameter of the return spring 620. The lower end of the return spring 620 is fixedly connected to the bottom of the box body 310.

[0090] The drawing member 630 includes a thin rod 631, a fixing block 632, and a screw knob 633. The upper end of the thin rod 631 is provided with a threaded section, and the upper end of the thin rod 631 is threadedly connected to the lower end of the connecting rod 614 through the threaded section. The axis of the thin rod 631 is collinear with the axis of the connecting rod 614.

[0091] The upper portion of the thin rod 631 passes downward through the sponge ring 1 531 and passes downward through the middle of the oil chamber 530 through the guide hole 533. The lower end of the thin rod 631 passes downward through the front side of the lower end of the box body 310. The lower end of the thin rod 631 is slidably connected to the middle of the sponge ring 3. The lower end of the thin rod 631 is provided with a fixing block 632. The fixing block 632 has a rectangular structure.

[0092] The fixing block 632 passes through from front to back to form a fixing hole 634. The front and rear sides of the lower end of the fixing block 632 are respectively threadedly connected to a screw knob 633. The upper end of the screw knob 633 is movably installed at the bottom of the fixing hole 634. In actual use, the thin rod 631 can be made of high-strength wear-resistant insulating plastic material or insulating fiberglass material, which can improve the safety of equipment operation.

[0093] As a third embodiment of the present invention, based on the above-mentioned second embodiment, when the detection component 600 moves up and down, the guide rod 1 510 and the guide rod 2 520 in the guide component 500 can guide and limit the column head 611, so that the entire detection component 600 can move smoothly, thereby ensuring the painting stability of the motion trajectory. When the painting member 630 moves up and down, the thin rod 631 passes through the guide hole 533 of the oil chamber 530. Since the lower end of the guide hole 533 is connected to the inside of the oil chamber 530 through multiple oil holes 532, the oil The lubricating oil stored in chamber 530 enters guide hole 533 under the action of oil hole 3 532 to lubricate the outer wall of thin rod 631, making the thin rod 631 move up and down more smoothly, reducing resistance and improving the accuracy of the test results. The provision of sponge ring 1 531 and sponge ring 3 can collect excess lubricating oil on the outer wall of thin rod 631, while keeping the equipment clean. At the same time, a layer of oil film is always attached to the outer wall of thin rod 631, so that the lubricating oil in oil chamber 530 can be used for a long time without frequent refilling.

[0094] If lubricating oil needs to be added, the sealing caps 1 and 2 on the upper ends of the guide rod 1 510 and the guide rod 2 520 are opened, and an external needle or other device capable of pressurizing oil is connected to the upper ends of the guide rod 1 510 and the guide rod 2 520, and the oil is pressurized and injected into the inner portion. When injecting oil, the power needs to be turned off or the insulating box 300 is removed. When the power is off, the four sponge rings 2 613 on the column head 611 are respectively placed on the outside of the oil hole 1 521 and the oil hole 2 522 on the guide rod 1 510 and the guide rod 2 520. When pressurizing oil injection, the oil enters the oil chamber 530 through the oil channel 1 of the guide rod 1 510 or the oil channel 2 of the guide rod 2 520. During this process, part of the oil seeps out through the oil hole 1 521 and the oil hole 2 522, and the corresponding sponge ring 2 613 is filled with lubricating oil.

[0095] After the oil chamber 530 is full, continuous injection of oil will cause the oil to enter the oil channel 1 of guide rod 1 510 or the oil channel 2 of guide rod 2 520, and then cause the oil channel 1 of guide rod 1 510 or the oil channel 2 of guide rod 2 520 to seep out through oil hole 1 521 and oil hole 2 522, thereby achieving the purpose of lubricating guide rod 1 510 and guide rod 2 520. When oil appears on the upper ends of guide rod 1 510 and guide rod 2 520 that are not connected to the oil injection equipment, the oil injection is stopped immediately to complete the refueling. The guide component 500 with its own lubrication structure can greatly reduce the friction between the two when guiding the detection component 600, thereby helping to improve the accuracy of the detection structure, while ensuring that the drawing piece 630 can draw a more beautiful trajectory, which is convenient for the operator to watch.

[0096] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A safety electricity detection device, comprising: A display assembly (100), a paper pressing assembly (200), an insulating box (300), an electromagnetic coil (400), a guide assembly (500) and a detection assembly (600), characterized in that the display assembly (100) is movably mounted on the lower end of the insulating box (300), and the paper pressing assembly (200) is fixed on the front side of the display assembly (100); The paper pressing assembly (200) is placed at the rear side of the lower end of the insulating box (300), an electromagnetic coil (400) is installed inside the insulating box (300), a guide assembly (500) is fixedly installed inside the insulating box (300), and a detection assembly (600) is movably installed in the middle of the insulating box (300); The middle portion of the guide assembly (500) is placed inside the electromagnetic coil (400), and the upper portion of the detection assembly (600) is movably installed inside the electromagnetic coil (400) through the guide assembly (500).

2. A safety electricity detection device according to claim 1, characterized in that: The display assembly (100) includes a housing (110), a reel (120), a battery module (130), and a reel (140), wherein the reel (120) is rotatably mounted on the upper left side of the housing (110), the battery module (130) is mounted on the left side of the bottom of the housing (110), and the reel (140) is fixed on the right side of the housing (110); A positioning frame (111) having a U-shaped cross section is provided on the left side, right side and rear side of the upper end of the shell (110); a through groove (112) is formed through the upper surface of the shell (110) upward; the front side and upper end of the positioning frame (111) are both open; a strip groove (113) is formed through the left side and right side of the front surface of the shell (110) backward; a guide roller (114) is rotatably installed on the side of the front end of each strip groove (113) close to the paper pressing assembly (200); and the front end of each guide roller (114) extends out of the strip groove (113).

3. A safety electricity detection device according to claim 2, characterized in that: The winding member (140) includes a motor (141), a small gear (142) and a large gear (143). The small gear (142) is fixed to the end of the output shaft of the motor (141). The right end of the small gear is meshed with the left end of the large gear (143). A rotating shaft (144) is fixed in the middle of the large gear (143). The rotating shaft (144) is rotatably mounted inside the right end of the housing (110) through a fixing plate. A small gear 2 (145) is fixed to the lower end of the rotating shaft 1 (144), and the right end of the small gear 2 (145) is meshed with the left end of the large gear 2 (146). A rotating shaft 2 (147) is fixed in the middle of the large gear 2 (146). The lower end of the rotating shaft 2 (147) is rotatably mounted on the right side of the inner portion of the housing 1 (110) through the fixing plate 2. The rotating shaft 2 (147) is placed on the right side of the rotating shaft 1 (144). A winding roller (148) is fixed at the upper end of the second rotating shaft (147), a limiting ring plate 2 is provided at the lower end of the winding roller (148), and a limiting ring plate 1 is provided at the lower end of the unwinding roller (120), and the height of the upper side of the limiting ring plate 1 is flush with the height of the upper side of the limiting ring plate 2.

4. The safe electricity use detection device according to claim 1, characterized in that: The paper pressing assembly (200) comprises a bottom plate (210), a positioning frame (220) and a pad (230), wherein the pad (230) is arranged in the middle of the front surface of the bottom plate (210), and a positioning frame (220) is respectively arranged on the left and right sides of the front surface of the bottom plate (210), and the two positioning frames (220) are distributed in an axisymmetric structure with respect to the pad (230), and the pad (230) is a rubber plate, and the height of the pad (230) is flush with the height of the bottom plate (210); The positioning frame (220) includes a stand (222), a supporting roller (221) and a pressing roller (223); the supporting roller (221) is rotatably mounted on the rear end of the stand (222); the front surface of the supporting roller (221) is flush with the front surface of the pad (230); and a pressing spring (224) is fixed to the upper and lower sides of the front end of the stand (222). A slider (225) is fixed to the rear end of each compression spring (224), and a guide block is provided at one end of each slider (225) close to the stand (222). A slide groove is provided on the inner wall of the lower end and the inner wall of the upper end of the stand (222), respectively, and the slider (225) is slidably connected to the slide groove through the guide block; A pressure roller (223) is rotatably installed between the two sliders (225), and the pressure roller (223) is located directly in front of the supporting roller (221), and a gap is provided between the supporting roller (221) and the pressure roller (223).

5. The safe electricity use detection device according to claim 1, characterized in that: The insulating box (300) comprises a box body (310) and mounting feet (320), two mounting feet (320) are respectively provided on the rear side of the left surface and the rear side of the right surface of the insulating box (300), and a sponge ring (3) is glued to the middle of the front side of the lower surface of the box body (310); The electromagnetic coil (400) is provided with a first terminal at its upper end, and a second terminal at its lower end. The first terminal's upper end passes through the upper end of the insulating box (300) and extends a portion upward. The second terminal's upper end passes through the upper end of the insulating box (300) and extends a portion upward. The second terminal is placed on the front side of the stand (222) at the right end of the bottom plate (210). The length of the lower end of the box body (310) is the same as the length inside the positioning frame (111), and the width of the lower end of the box body (310) is greater than the width of the housing (110).

6. A safe electricity use detection device according to claim 5, characterized in that: The guide assembly (500) includes a guide rod 1 (510), a guide rod 2 (520) and an oil chamber (530). The specifications of the guide rod 1 (510) are the same as those of the guide rod 2 (520). The guide rod 1 (510) and the guide rod 2 (520) are symmetrically distributed about the axis of the oil chamber (530). The upper outer wall of the guide rod 2 (520) is radially inwardly provided with a plurality of oil holes 2 (522) distributed in an annular structure. The upper outer wall of the guide rod 2 (520) is radially inwardly provided with a plurality of oil holes 1 (521) distributed in an annular structure. The oil hole 1 (521) is located directly below the oil hole 2 (522). The structure and size of the oil hole 1 (521) are the same as those of the oil hole 2 (522). The inner diameters of the oil hole 1 (521) and the oil hole 2 (522) gradually decrease from the inside to the outside. The outer ends of the oil hole 1 (521) and the oil hole 2 (522) are lower than the inner ends and are arranged at an inclined angle of 60 degrees.

7. A safe electricity use detection device according to claim 6, characterized in that: An oil passage 1 is provided inside the guide rod 1 (510), and an oil passage 2 is provided inside the guide rod 2 (520). The upper end of the oil passage 1 passes through the upper end of the guide rod 1 (510) upwards. A sealing cap 1 is threadedly connected to the upper end of the guide rod 1 (510). The upper end of the guide rod 1 (510) passes through the upper end of the box body (310) upwards, and the sealing cap 1 is placed above the upper end of the box body (310). The upper end of the second oil passage passes upward through the upper end of the second guide rod (520), the upper end of the second guide rod (520) is threadedly connected to the second sealing cap, the upper end of the second guide rod (520) passes upward through the upper end of the box body (310), and the second sealing cap is placed above the upper end of the box body (310); The lower ends of the guide rod 1 (510) and the guide rod 2 (520) are fixedly connected to the left and right sides of the upper end of the oil chamber (530), respectively; the lower end of the oil passage passes downward through the lower end of the guide rod 1 (510) and is in communication with the interior of the oil chamber (530); the lower end of the oil passage passes downward through the lower end of the guide rod 2 (520) and is in communication with the interior of the oil chamber (530); A sponge ring (531) is fixed in the middle of the upper end of the oil chamber (530), and a guide hole (533) is formed by penetrating downward through the middle of the upper end of the oil chamber (530). The upper end of the guide hole (533) is communicated with the interior of the sponge ring (531). The lower end of the middle of the oil chamber (530) is radially inwardly penetrated to form a plurality of oil holes (532) distributed in an annular structure. The interior of the oil chamber (530) is communicated with the lower side of the interior of the guide hole (533) through the plurality of oil holes (532).

8. The safe electricity use detection device according to claim 7, characterized in that: The detection assembly (600) includes an iron core (610), a return spring (620) and a drawing member (630); the iron core (610) includes a column head (611), a second sponge ring (613) and a connecting rod (614); a connecting rod (614) is provided in the middle of the lower end of the column head (611); the axis of the connecting rod (614) is collinear with the axis of the column head (611); and the diameter of the column head (611) is larger than the diameter of the connecting rod (614); The left and right sides of the upper end of the column head (611) respectively penetrate downward to form a sliding hole (612), the inner diameter of the sliding hole (612) matches the diameter of the guide rod 1 (510) and the guide rod 2 (520), and a sponge ring 2 (613) is fixed on the upper side and the lower side of each sliding hole (612), and the upper end and the lower end of the sliding hole (612) are respectively connected to the interior of a sponge ring 2 (613); The lower ends of the guide rod 1 (510) and the guide rod 2 (520) are slidably connected to the column head (611) through the sliding hole (612), the lower end of the column head (611) is in contact with the upper end of the return spring (620), and the diameter of the column head (611) is larger than the overall diameter of the return spring (620), and the lower end of the return spring (620) is fixedly connected to the bottom of the box body (310).

9. The safe electricity use detection device according to claim 8, characterized in that: The painting member (630) includes a thin rod (631), a fixing block (632), and a screw knob (633). The upper end of the thin rod (631) is provided with a threaded section. The upper end of the thin rod (631) is threadedly connected to the lower end of the connecting rod (614) through the threaded section. The axis of the thin rod (631) is collinear with the axis of the connecting rod (614). The upper portion of the thin rod (631) passes downward through the sponge ring (531) and passes downward through the middle of the oil chamber (530) through the guide hole (533). The lower end of the thin rod (631) passes downward through the front side of the lower end of the box body (310). The lower end of the thin rod (631) is slidably connected to the middle of the sponge ring (3). A fixing block (632) is provided at the lower end of the thin rod (631). The fixing block (632) is a rectangular structure. The fixing block (632) is penetrated from front to back to form a fixing hole (634), and the front and rear sides of the lower end of the fixing block (632) are respectively threadedly connected with a screw knob (633), and the upper end of the screw knob (633) is movably mounted on the bottom of the fixing hole (634).

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