Relay control fault assessment device

Abstract

The utility model relates to a relay control fault assessment device, which effectively solves the problem that the basis of students is relatively weak and the learned knowledge cannot be completely applied to equipment. Comprising a shell, two opening doors, two training panels and a relay component, the two opening doors are hinged to the front side and the rear side of the shell respectively, a cavity is formed in each opening door, a first concentric-square-shaped groove is formed in the periphery of each cavity, second concentric-square-shaped grooves matched with the first concentric-square-shaped grooves are formed in the inner side faces of the training panels, and the relay component is arranged in the second concentric-square-shaped grooves. The two training panels are fixed in the corresponding cavities, and fixing assemblies are arranged between the opening doors and the training panels; the device is ingenious in structure and convenient to use, through the arrangement of the component training panel, the graphic symbol training panel and the like, the terminals of the component training panel and symbols on the graphic symbol training panel are correspondingly arranged, a user can practice wiring on the graphic symbol training panel by using a banana head stacking and inserting wire, and the troubleshooting capability of students is improved.

Description

Technical Field

[0001] This utility model relates to the field of fault diagnosis equipment technology, and in particular to a relay control fault assessment device. Background Technology

[0002] A relay is an electrical control device that causes a predetermined step change in the controlled variable in the electrical output circuit when the input quantity changes to a specified value. It establishes an interactive relationship between the control system and the controlled system. Commonly used in automated control circuits, it essentially functions as an "automatic switch" that uses a small current to control a large current. Therefore, it plays roles in automatic adjustment, safety protection, and circuit switching within circuits.

[0003] In electrical engineering programs at various universities, there is an increasing emphasis on improving students' practical skills.

[0004] Most colleges currently have very advanced electrical engineering training equipment in their training rooms, but students' basic knowledge and learning ability are relatively weak, and they cannot fully apply what they have learned to the equipment. The pure theoretical knowledge taught by teachers does not significantly improve students' ability to troubleshoot circuit faults. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the prior art, the purpose of this utility model is to provide a relay control fault assessment device, which effectively solves the problems mentioned in the background art.

[0006] The technical solution is as follows: This utility model includes a housing, two opening doors, two training panels, and relay components. The two opening doors are respectively hinged to the front and rear sides of the housing. A cavity is opened inside the opening door. A first loop groove is provided around the periphery of the cavity. A second loop groove matching the first loop groove is opened on the inner side of the training panel. The two training panels are fixed inside the corresponding cavities. A fixing component is provided between the opening door and the training panel.

[0007] The fixing assembly includes a knob located on one side of the opening door. A rotating shaft is provided between the knob and the opening door. One end of the rotating shaft is fixedly connected to the knob, and the other end of the rotating shaft is rotatably connected to the opening door. A main bevel gear and a ratchet are provided between the knob and the opening door. Both the main bevel gear and the ratchet are fixedly connected to the rotating shaft. A first transmission rod is provided on the upper and lower sides of the main bevel gear. A secondary bevel gear is fixed to the end of the first transmission rod near the main bevel gear. A steering box is provided at the end of the first transmission rod away from the main bevel gear. A second transmission rod is fixed to one end of the steering box. A thread is provided on the side of the second transmission rod away from the steering box. An arc plate is threaded onto the second transmission rod.

[0008] The training panel is fixed with pins on both the top and bottom sides, and each pin has a hole. One side of the opening door is provided with a plate that slides up and down inside the hole. A guide wheel is fixed on the top of the plate, and the arc plate is in contact with the guide wheel. An installation plate is fixed on the inside of the opening door, and a slide rod is fixed on the installation plate. An installation ring is provided on one side of the plate, and the installation ring slides up and down with the slide rod. The installation ring and the installation plate are connected by a spring.

[0009] Preferably, a connecting shaft located on one side of the ratchet is fixed on the opening door, a pawl matching the ratchet is rotatably mounted on the connecting shaft, a connecting plate located on the opening door is provided on one side of the pawl, the connecting plate is connected to the pawl by a spring, and a plurality of circumferentially distributed push blocks are provided on the pawl.

[0010] Preferably, the training panel is divided into a component training panel and a graphic symbol training panel, and the terminals of the component training panel correspond one-to-one with the symbols of the graphic symbol training panel.

[0011] Preferably, a limiting groove is provided on the side of the opening door near the arc plate, and a limiting block is provided on the side of the arc plate near the opening door, the limiting block sliding inside the limiting groove.

[0012] Preferably, the contact surface between the arc plate and the guide wheel is an arc surface, the side of the insert plate away from the opening door is an arc surface, and the thickness of the insert plate is greater than the width of the insertion hole.

[0013] Preferably, the first groove is provided with shock-absorbing cotton.

[0014] Preferably, the opening door is fixed with a plurality of positioning blocks that are respectively matched with the first transmission rod and the second transmission rod.

[0015] Preferably, the door is equipped with an anti-theft lock.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. By setting up the component training panel and graphic symbol training panel, the terminals of the component training panel are matched with the sockets on the graphic symbol training panel. Users can practice wiring using banana-head folding wires on the graphic symbol training panel. After wiring is completed, faults can be set at any point in the circuit, combining theory with practical operation and improving students' troubleshooting ability.

[0018] 2. By incorporating training panels, opening doors, and fixing components, the two training panels are made detachable. When one panel is damaged or when both training panels need to be upgraded or replaced, the user can quickly disassemble and replace it.

[0019] 3. By using insert plates and latches, gaps between the training panel and the opening door are avoided, preventing the training panel from shaking during use. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention.

[0021] Figure 2 This is a perspective view of the present invention from another angle.

[0022] Figure 3 This is a schematic diagram of the opening door structure in this utility model.

[0023] Figure 4 This is a schematic diagram of the training panel in this utility model.

[0024] Figure 5 This is a schematic diagram of the knob in this utility model.

[0025] Figure 6 This is a schematic diagram of the ratchet and pawl structure in this utility model.

[0026] Figure 7 This is a utility model Figure 5 A magnified schematic diagram of the structure at point A in the middle.

[0027] Figure 8 This is a schematic diagram of the transmission wheel in this utility model.

[0028] Figure 9 This is a schematic diagram of the insert plate in this utility model.

[0029] Figure 10 This is a plan view of the training panel for the components in this utility model.

[0030] Figure 11 This is a plan view of the graphic symbol training panel in this utility model.

[0031] Explanation of the labels in the diagram:

[0032] 10. Housing; 20. Opening door; 201. Cavity; 202. First spiral groove; 203. Anti-theft lock; 204. Connecting plate; 205. Connecting shaft; 30. Component training panel; 40. Graphic symbol training panel; 401. Second spiral groove; 41. Pin; 50. Knob; 51. Main bevel gear; 52. First transmission rod; 521. Secondary bevel gear; 53. Steering box; 54. Second transmission rod; 55. Arc plate; 56. Insert plate; 561. Mounting ring; 562. Transmission wheel; 57. Mounting plate; 571. Slide rod; 58. Ratchet; 59. Pad; 591. Push block. Detailed Implementation

[0033] 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.

[0034] Depend on Figures 1 to 8 The system includes a housing 10, two opening doors 20, two training panels, and relay components. The two opening doors 20 are respectively hinged to the front and rear sides of the housing 10. The training panels are divided into a component training panel 30 and a graphic symbol training panel 40. The terminals of the component training panel 30 correspond one-to-one with the sockets on the graphic symbol training panel 40. By setting up the component training panel 30 and the graphic symbol training panel 40, the terminals of the component training panel 30 are aligned with the symbols on the graphic symbol training panel 40. The user can use a fragrance device on the graphic symbol training panel 40. The banana-head stacked wire practice wiring is completed. After the wiring is completed, faults (short circuit, open circuit, high resistance, low insulation resistance, and polarity cross, etc.) can be set at any position of the line to realize the combination of theory and practice and improve students' troubleshooting ability. The opening door 20 has a cavity 201 inside. The cavity 201 has a first loop groove 202 around its perimeter. The inner side of the training panel has a second loop groove 401 that matches the first loop groove 202. The two training panels are respectively fixed inside the corresponding cavities 201. A fixing component is provided between the opening door 20 and the training panel.

[0035] Furthermore, considering the possibility of replacing or repairing the training panel during use, and to facilitate future replacement, the fixing component includes a knob 50 located on one side of the opening door 20. A rotating shaft is provided between the knob 50 and the opening door 20. One end of the rotating shaft is fixedly connected to the knob 50, and the other end of the rotating shaft is rotatably connected to the opening door 20. A main bevel gear 51 and a ratchet 58 are provided between the knob 50 and the opening door 20. Both the main bevel gear 51 and the ratchet 58 are fixedly connected to the rotating shaft. A first transmission rod 52 is provided on the upper and lower sides of the main bevel gear 51. A secondary bevel gear 521 is fixed to the end of the first transmission rod 52 near the main bevel gear 51. A steering box 53 is provided to the end of the first transmission rod 52 away from the main bevel gear 51. A second transmission rod 54 is fixed to one end of the steering box 53. A thread is provided on the side of the second transmission rod 54 away from the steering box 53. An arc plate 55 is threaded onto the second transmission rod 54, and the length of the thread is greater than the range of motion of the arc plate 55.

[0036] The training panel is fixed with pins 41 on both the top and bottom sides. Each pin 41 has a hole. One side of the opening door 20 is provided with a plate 56 that slides up and down inside the hole. A guide wheel 562 is fixed on the top of the plate 56. The arc plate 55 is in contact with the guide wheel 562. An installation plate 57 is fixed on the inner side of the opening door 20. A slide rod 571 is fixed on the installation plate 57. An installation ring 561 is provided on one side of the plate 56. The installation ring 561 slides up and down with the slide rod 571. The installation ring 561 and the installation plate 57 are connected by a spring. Through the training panel, the opening door 20 and the fixing components, the two training panels are made detachable. When one panel is damaged or the two training panels need to be upgraded or replaced, the user can quickly disassemble and replace them.

[0037] refer to Figure 6 As shown, considering that the fixing components are prone to loosening during the fixing of the training panel, a connecting shaft 205 located on one side of the ratchet 58 is fixed on the opening door 20. A pawl 59 matching the ratchet 58 rotates on the connecting shaft 205. A connecting plate 204 located on the opening door 20 is provided on one side of the pawl 59. The connecting plate 204 and the pawl 59 are connected by a spring. Multiple circumferentially distributed push blocks 591 are provided on the pawl 59. Through the cooperation of the ratchet 58 and the pawl 59, the knob 50 and the main bevel gear 51 are restricted from loosening in the opposite direction, thereby strengthening the firmness between the training panel and the opening door 20. When it is necessary to release the restriction of the knob 50 and the main bevel gear 51, it is only necessary to push the push block 591 to disengage the pawl 59 from the ratchet 58.

[0038] Furthermore, to prevent the arc plate 55 from deflecting during movement, a limiting groove is provided on the side of the opening door 20 near the arc plate 55, and a limiting block is provided on the side of the arc plate 55 near the opening door 20. The limiting block slides inside the limiting groove, and the movement direction of the arc plate 55 is limited by the limiting block and the limiting groove.

[0039] refer to Figures 7 to 9 As shown, considering the aforementioned wobbling issue between the training panel and the opening door 20, the contact surface between the arc plate 55 and the transmission wheel 562 is arc-shaped, facilitating the cooperation between the arc plate 55 and the transmission wheel 562. During the movement of the arc, the degree to which the insert plate 56 is inserted downwards varies with the change of its arc surface. The side of the insert plate 56 away from the opening door 20 is arc-shaped, facilitating the insertion of the insert plate 56 into the socket. The thickness of the insert plate 56 is greater than the width of the socket. When installing the training panel, the user continuously controls the insertion plate 56 to be inserted downwards into the socket by using the knob 50 until the knob 50 is very difficult to rotate, thus strengthening the fixation of the training panel.

[0040] Furthermore, considering the wear and noise between the training panel and the opening door 20, shock-absorbing cotton is provided in the first groove 202 to reduce the wear and noise between the training panel and the opening door 20.

[0041] refer to Figure 5 As shown, the opening door 20 is fixed with a plurality of positioning blocks that are respectively matched with the first transmission rod 52 and the second transmission rod 54, and the first transmission rod 52 and the second transmission rod 54 are fixed by the positioning blocks.

[0042] refer to Figure 3 As shown, the door 20 is equipped with an anti-theft lock 203, which protects the wiring inside the housing 10.

[0043] refer to Figure 10 and Figure 11 As shown, Figure 10 For component training panel 30, Figure 11 The graphic symbol training panel 40, as described above for the two training panels, has terminals on the component training panel 30 corresponding to sockets on the graphic symbol training panel 40. The connecting wires are hidden inside the housing 10. Users can practice wiring on the graphic symbol training panel 40 using banana-head folding wires. After wiring is completed, faults can be set at any point on the line.

[0044] When using this utility model:

[0045] First, install the two training panels on the corresponding opening doors 20. During the installation process, first rotate the knob 50. At this time, the insert plate 56 slides outward under the drive of the first transmission rod 52 and the second transmission rod 54.

[0046] Then, manually insert the training panel into the first groove 202, release the limit between the ratchet 58 and the pawl 59, and rotate the knob 50 in the opposite direction to control the insert plate 56 to move continuously into the insertion hole. During the movement of the insert plate 56, stop when the knob 50 is very difficult to rotate.

[0047] Secondly, when releasing the ratchet 58 and pawl 59, you only need to push the push block 591 to disengage the pawl 59 from the ratchet 58. If you feel that pushing the push block 591 is too difficult, you can also pull the pawl 59 upward.

[0048] Finally, after both training panels are installed, connect the terminals on the component training panel 30 to the corresponding sockets on the graphic symbol training panel 40. Students can then practice wiring by using banana-head folded wires.

[0049] 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 relay control fault assessment device, comprising a housing (10), two opening doors (20), two training panels, and relay components, characterized in that, The two opening doors (20) are respectively hinged to the front and rear sides of the housing (10). The opening door (20) has a cavity (201) inside. The cavity (201) has a first spiral groove (202) around its periphery. The training panel has a second spiral groove (401) matching the first spiral groove (202) on its inner side. The two training panels are respectively fixed inside the corresponding cavities (201). A fixing component is provided between the opening door (20) and the training panel. The fixing assembly includes a knob (50) located inside the opening door (20). A rotating shaft is provided between the knob (50) and the opening door (20). One end of the rotating shaft is fixedly connected to the knob (50), and the other end of the rotating shaft is rotatably connected to the opening door (20). A main bevel gear (51) and a ratchet (58) are provided between the knob (50) and the opening door (20). Both the main bevel gear (51) and the ratchet (58) are fixedly connected to the rotating shaft. The upper and lower parts of the main bevel gear (51) are... A first transmission rod (52) is provided on each side. A secondary bevel gear (521) is fixed at the end of the first transmission rod (52) near the main bevel gear (51). A steering box (53) is provided at the end of the first transmission rod (52) away from the main bevel gear (51). A second transmission rod (54) is fixed at one end of the steering box (53). A thread is provided on the side of the second transmission rod (54) away from the steering box (53). An arc plate (55) is threaded onto the second transmission rod (54). The training panel is fixed with pins (41) on both the top and bottom sides. The pins (41) have holes. The opening door (20) has a plate (56) that slides up and down inside the holes on one side. The plate (56) has a guide wheel (562) fixed on the top. The arc plate (55) is in contact with the guide wheel (562). The opening door (20) has a mounting plate (57) fixed on the inside. The mounting plate (57) has a slide rod (571) fixed on it. The plate (56) has a mounting ring (561) on one side. The mounting ring (561) slides up and down with the slide rod (571). The mounting ring (561) and the mounting plate (57) are connected by a spring.

2. The relay control fault assessment device according to claim 1, characterized in that, The opening door (20) is fixed with a connecting shaft (205) located on one side of the ratchet (58). A pawl (59) matching the ratchet (58) is rotatably mounted on the connecting shaft (205). A connecting plate (204) located on the opening door (20) is provided on one side of the pawl (59). The connecting plate (204) and the pawl (59) are connected by a spring. A plurality of circumferentially distributed push blocks (591) are provided on the pawl (59).

3. The relay control fault assessment device according to claim 1, characterized in that, The training panel is divided into a component training panel (30) and a graphic symbol training panel (40), and the terminals of the component training panel (30) correspond one-to-one with the symbols of the graphic symbol training panel (40).

4. The relay control fault assessment device according to claim 1, characterized in that, The opening door (20) has a limiting groove on the side near the arc plate (55), and a limiting block is provided on the side of the arc plate (55) near the opening door (20). The limiting block slides inside the limiting groove.

5. The relay control fault assessment device according to claim 1, characterized in that, The contact surface between the arc plate (55) and the guide wheel (562) is an arc surface, the side of the insert plate (56) away from the opening door (20) is an arc surface, and the thickness of the insert plate (56) is greater than the width of the insertion hole.

6. The relay control fault assessment device according to claim 1, characterized in that, The first groove (202) is provided with shock-absorbing cotton.

7. The relay control fault assessment device according to claim 1, characterized in that, The opening door (20) is fixed with a plurality of positioning blocks that are respectively matched with the first transmission rod (52) and the second transmission rod (54).

8. The relay control fault assessment device according to claim 1, characterized in that, The door (20) is equipped with an anti-theft lock (203).

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