Electrical automation teaching training platform

Abstract

The utility model discloses an electrical automation teaching practical training platform, and belongs to the field of electrical teaching equipment. Comprising a table top and a support for supporting the table top, a mounting frame is arranged on the table top and comprises a mounting column fixedly arranged on the table top, a winding wheel used for winding a cable and a connecting wheel rotationally arranged in the mounting column are rotationally arranged in the mounting column, and the connecting wheel is rotationally matched with the winding wheel; the first torsional spring is arranged between the connecting wheel and the winding wheel, and the two ends of the first torsional spring are fixedly connected to the connecting wheel and the winding wheel respectively; the second torsional spring is arranged on the connecting wheel; and the buckle assembly is arranged on the mounting column. The electrical automation teaching practical training platform has the beneficial effects that through arrangement of the connecting wheel and the second torsion spring, when a cable needs to be pulled out by a certain length and is kept, the cable can be unwound to a preset length under the condition that the first torsion spring is not twisted through rotation of the connecting wheel, the situation that the cable is completely recycled is avoided, and the service life of the cable is prolonged. And the cable can be conveniently and repeatedly taken.

Description

Technical Field

[0001] This application relates to the field of electrical teaching equipment, and more specifically, to an electrical automation teaching and training platform. Background Technology

[0002] Current teaching electrical platforms are mainly used for installing power supplies and instruments involved in teaching experiments in various universities. They can meet students' needs for skills training in electrical installation, wiring techniques, circuit analysis, familiarity with mechanical and electrical control circuits, and fault analysis. However, in related technologies, existing electrical platforms require the installation of various electrical components and wiring connections during teaching, which can easily lead to problems such as wire tangling. Therefore, automatic wire retraction devices are generally used. However, these devices usually require pulling out the wire harness during use, and the cable connector returns to its original position after use, making it impossible to adjust the length and position of the retracted connector. In actual use, the cable needs to be pulled out and kept at a certain length. Existing methods typically pull the clip back a certain distance and then lock it to prevent the cable from retracting for subsequent wiring. However, once the cable is locked, it cannot be pulled out further, and adjusting the cable pull-out distance requires repeated adjustment of the clip position, which is inconvenient.

[0003] Therefore, an electrical automation teaching and training platform is needed to solve the above problems. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide an electrical automation teaching and training platform, including: a desktop and a support frame for a supporting base; a mounting frame on the desktop; the mounting frame including a mounting column fixedly mounted on the desktop; a winding wheel for winding cables rotatably mounted inside the mounting column; a slide rail fixed to the mounting column; a push slider slidably connected to the slide rail; and an adjustment component inside the mounting column for adjusting the cable extension length. The adjustment component includes: a connecting wheel rotatably mounted inside the mounting column, the connecting wheel and the winding wheel rotating in tandem, causing the winding wheel and the connecting wheel to rotate relatively in one direction; a first torsion spring, disposed between the connecting wheel and the winding wheel, with its two ends fixedly connected to the connecting wheel and the winding wheel respectively; a second torsion spring, disposed on the connecting wheel for resetting the connecting wheel; and a latching assembly, disposed on the mounting column for limiting the movement of the connecting wheel.

[0006] The mounting post has an inner cavity. Through a winding wheel and a first torsion spring, when one end of the cable is pulled out, the winding wheel rotates, which in turn drives the first torsion spring to twist. When the cable needs to be retracted, the winding wheel is retracted under the action of the first torsion spring. Through a connecting wheel and a second torsion spring, when the cable needs to be pulled out to a certain length and held, the rotation of the connecting wheel allows the first torsion spring to unwind the cable to a predetermined length without twisting. At this time, the cable can maintain a certain pulled-out length without being retracted. At the same time, when the cable needs to be pulled, the cable can continue to be pulled out and can be retracted to the predetermined length.

[0007] Furthermore, a ratchet ring is fixedly connected to the connecting wheel. The ratchet ring has multiple limiting grooves circumferentially open for limiting the buckle assembly. The inner wall of one side of the limiting groove is inclined.

[0008] With the ratchet ring and the latching assembly, when the connecting wheel rotates and the cable is unwound, the latching assembly will not limit the connecting wheel. At this time, the second torsion spring will twist. When the latching assembly no longer limits the connecting wheel, the connecting wheel will rotate under the action of the second torsion spring, which will then drive the winding wheel to rotate and retract the cable.

[0009] Furthermore, the limiting component includes a push rod slidably mounted on the mounting post. One end of the push rod is inserted into the mounting post and slidably connected to a limiting plate for embedding into a limiting groove. A compression spring is provided between the limiting plate and the push rod. One end of the push rod extends out of the mounting post and is provided with a button. A connecting spring is provided between the push rod and the mounting post, and both ends of the connecting spring are fixedly connected to the push rod and the mounting post, respectively.

[0010] With the push rod and limit plate in place, when the connecting wheel rotates forward and the cable is unwound, the limit plate can be pushed out of the limit groove by the inclined inner wall of the limit groove when the connecting wheel has a certain torque, and the connecting wheel is not limited. When the connecting wheel rotates in the opposite direction and the cable is wound up, the limit plate limits the connecting wheel. When the push rod is pushed to make the limit plate leave the limit groove, the limit plate no longer limits the connecting wheel, and the connecting wheel can rotate in the opposite direction and the cable can be wound up.

[0011] Furthermore, a guide groove is provided on the push rod, the limiting plate slides with the guide groove, an upper side plate is fixedly connected to the push rod, and a compression spring is provided between the upper side plate and the limiting plate.

[0012] The guide groove ensures that the limiting plate can only move along the guide direction of the guide groove relative to the push rod. Under the action of the inclined inner wall of the limiting groove, the limiting plate moves along the guide direction of the guide groove. When the push rod moves, the limiting plate moves together with the push rod.

[0013] Furthermore, a pulling steel wire is wound on the connecting wheel, one end of which is connected to the push slider, and the winding direction of the pulling steel wire is the same as that of the cable winding direction.

[0014] By setting up a push slider and a pull wire, when the push slider moves, it can drive the connecting wheel to rotate under the action of the pull wire. Since the winding direction of the pull wire is the same as the winding direction of the cable, the cable is also unwound.

[0015] Furthermore, the sliding block is equipped with a latch for locking the cable end.

[0016] The cable end can be placed on the clip by the clip. Since the movement length of the slider is the same as the extension length of the cable, the cable end will not hang or tangle when placed on the clip, keeping the desktop tidy.

[0017] Furthermore, the connecting wheel includes a fixed end that rotatably engages with the mounting column and a rotating end that is rotatably connected to the fixed end, and the two ends of the second torsion spring are respectively fixedly connected to the fixed end and the rotating end.

[0018] With the fixed end and the rotating end set, when the fixed end rotates, it can drive the rotating end to rotate under the action of the second torsion spring, and then drive the winding wheel to rotate under the action of the first torsion spring. At this time, the second torsion spring does not twist, thus avoiding the failure of the second torsion spring due to long-term stress. When the fixed end and the rotating end rotate relative to each other, the second torsion spring twists, which can drive the rotating end to reset.

[0019] Furthermore, one end of the fixed end extends out of the mounting post and is provided with a handle. At the same time, a limiting screw with one end abutting against the fixed end is threaded on the mounting post to limit the fixed end.

[0020] The handle and limit screw can be used to rotate the fixed end and limit its movement.

[0021] Furthermore, a guide wheel is provided on the mounting column below the winding wheel. The cable passes between the winding wheel and the guide wheel. Mounting blocks are rotatably connected to both ends of the axis of the guide wheel. The mounting blocks are slidably mounted on the mounting column and an adjusting spring is provided between the mounting blocks and the mounting column. The adjusting spring is fixedly connected to the mounting blocks and the mounting column respectively.

[0022] The guide wheels ensure that the cable is always tightly wound on the winding wheel, preventing tangling.

[0023] The beneficial effects of this application are as follows:

[0024] 1. Through the set winding wheel and the first torsion spring, when one end of the cable is pulled out, the winding wheel rotates and drives the first torsion spring to twist. When the cable needs to be retracted, the winding wheel is retracted under the action of the first torsion spring. Through the set connecting wheel and the second torsion spring, when the cable needs to be pulled out to a certain length and held, the rotation of the connecting wheel allows the first torsion spring to unwind the cable to the predetermined length without twisting. At this time, the cable can maintain a certain pulled-out length without being retracted, which is convenient for repeated use of the cable. At the same time, when the cable needs to be pulled out, the cable can continue to be pulled out and can be retracted to the predetermined length.

[0025] 2. With the ratchet ring and the latching assembly, when the connecting wheel rotates and the cable is unwound, the latching assembly will not limit the connecting wheel. At this time, the second torsion spring will twist. When the latching assembly no longer limits the connecting wheel, the connecting wheel will rotate under the action of the second torsion spring, which will then drive the winding wheel to rotate and retract the cable. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0027] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0028] In the attached diagram:

[0029] Figure 1 This is an overall schematic diagram according to one embodiment of the present application;

[0030] Figure 2 yes Figure 1 A schematic diagram of the slider installation in the embodiment;

[0031] Figure 3 yes Figure 1 A schematic diagram of the positions of the winding wheel and the connecting wheel in the embodiment;

[0032] Figure 4 yes Figure 1 A schematic diagram of the structure of the fixed end and the rotating end in the embodiment;

[0033] Figure 5 yes Figure 4 A magnified view of a portion of the image.

[0034] Figure label:

[0035] 100. Desktop; 101. Bracket; 102. Mounting bracket; 103. Mounting post; 104. Winding wheel; 105. Slide rail; 106. Push slider; 107. Connecting wheel; 108. First torsion spring; 109. Second torsion spring; 110. Ratchet ring; 111. Limiting groove; 112. Push rod; 113. Limiting plate; 114. Compression spring; 115. Button; 116. Guide groove; 117. Upper side plate; 118. Fixed end; 119. Rotating end; 120. Connecting spring; 121. Handle; 122. Limiting screw; 123. Pulling wire; 124. Buckle; 125. Guide wheel; 126. Mounting block; 127. Adjusting spring. Detailed Implementation

[0036] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0037] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0038] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0039] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0040] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] Reference Figure 1-5 Desktop 100, bracket 101, mounting bracket 102, mounting post 103, winding wheel 104, slide rail 105, push slider 106, connecting wheel 107, first torsion spring 108, second torsion spring 109, ratchet ring 110, limiting groove 111, push rod 112, limiting plate 113, compression spring 114, button 115, guide groove 116, upper side plate 117.

[0042] A bracket 101 supports a desktop 100, which has an area for placing teaching equipment. A mounting bracket 102 is fixed to one side of the desktop 100 and includes two mounting posts 103 fixed to the desktop 100, with a slide rail 105 fixedly connected between the two mounting posts 103. Each mounting post 103 has an inner cavity, within which a winding wheel 104 is rotatably mounted. Cables for wiring instruction are wound on the winding wheel 104, with the cable ends protruding from the mounting posts 103. When the cable needs to be retrieved, pulling the cable rotates the winding wheel 104. The winding wheel 104 rotates forward to unwind and reverse to rewind.

[0043] In one embodiment, a connecting wheel 107, coaxially arranged with the winding wheel 104, is rotatably connected inside the mounting post 103. A first torsion spring 108 is disposed between the connecting wheel 107 and the winding wheel 104. The connecting wheel 107 includes a fixed end 118 and a rotating end 119 rotatably engaged with the fixed end 118. A second torsion spring 109 is disposed between the rotating end 119 and the fixed end 118. Both ends of the first torsion spring 108 are fixedly connected to the rotating end 119 and the winding wheel 104, respectively. The elastic coefficient of the first torsion spring 108 is smaller than that of the second torsion spring 109.

[0044] The fixed end 118 can be fixed and rotated within the mounting post 103. When the fixed end 118 is fixed within the mounting post 103, the rotation of the rotating end 119 will cause the second torsion spring 109 to twist.

[0045] When the fixed end 118 is fixed inside the mounting post 103, and the cable needs to be pulled out, the first torsion spring 108 will twist. When the cable is no longer pulled, the cable will retract completely and return to its initial state.

[0046] When the cable needs to be retracted to a predetermined length, the rotating end 119 rotates relative to the fixed end 118, causing the second torsion spring 109 to twist. Under the action of the first torsion spring 108, the winding wheel 104 rotates synchronously with the rotating end 119, and the winding wheel 104 unwinds the cable to the predetermined length. At this time, the first torsion spring 108 does not twist. After the cable is unwound to the predetermined length, it limits the rotating end 119; at this time, the cable can continue to be pulled, causing the first torsion spring 108 to twist, and the cable can be retracted under the action of the first torsion spring 108. In this case, the cable can be retracted to the predetermined length. Since the first torsion spring 108 did not twist before the cable was pulled, only a small force is needed to pull the cable, and the first torsion spring 108 will not fail due to being under stress for a long time.

[0047] In the above embodiment, the rotating end 119 is limited by a snap-fit ​​assembly. The snap-fit ​​assembly includes a ratchet ring 110 fixedly connected to the rotating end 119. The ratchet ring 110 has multiple limiting grooves 111 circumferentially open for limiting the snap-fit ​​assembly. The inner wall of one side of the limiting groove 111 is inclined. A push rod 112 is provided on the mounting post 103, with one end inserted into the mounting post 103 and sliding axially. One end of the push rod 112 is slidably connected to a limiting plate 113 inserted into the limiting groove 111. When the rotating end 119 rotates in the forward direction, the limiting plate 113 does not limit the rotating end 119 under the action of the inclined inner wall of the limiting groove 111; when the rotating end 119 rotates in the reverse direction, the limiting plate 113 limits the rotating end 119. A connecting spring 120 is provided between the push rod 112 and the mounting post 103. The two ends of the connecting spring 120 are fixedly connected to the push rod 112 and the mounting post 103, respectively.

[0048] A guide groove 116 is provided on the push rod 112, and the limiting plate 113 slides in conjunction with the guide groove 116. An upper side plate 117 is fixedly connected to the push rod 112, and a compression spring 114 is disposed between the upper side plate 117 and the limiting plate 113. When the rotating end 119 rotates in the forward direction, the limiting plate 113 moves toward the upper side plate 117 and disengages from the limiting groove 111 under the action of the inclined inner wall of the limiting groove 111, at which time the compression spring 114 is compressed. When the rotating end 119 rotates in the reverse direction, the limiting plate 113 is embedded into the limiting groove 111 under the action of the compression spring 114, thus limiting the rotation end 119. One end of the push rod 112 extends out of the mounting post 103 and is equipped with a button 115. When the button 115 is pressed, the push rod 112 slides axially, which drives the limiting plate 113 to move synchronously, causing the limiting plate 113 to disengage from the limiting groove 111. The limiting plate 113 also has an inclined surface, so that after the limiting plate 113 moves away from the limiting groove 111 along the axis of the push rod 112, it can squeeze the compression spring 114 back into the limiting groove 111 under the action of the inclined surface.

[0049] The compression spring 114 is designed so that when the torque of the rotating end 119 reaches a predetermined value, the limiting plate 113 is pushed and the compression spring 114 is squeezed by the inclined surface of the limiting groove 111, so that the limiting plate 113 is disengaged from the limiting groove 111.

[0050] When it is necessary to retract the entire cable, press button 115 to disengage the limit plate 113 from the limit groove 111 and stop limiting the rotating end 119. Under the action of the second torsion spring 109, the entire cable is retracted.

[0051] In the above embodiment, one end of the fixed end 118 extends out of the mounting post 103 and is provided with a handle 121. When the handle 121 is rotated, the fixed end 118 can be rotated inside the mounting post 103. A limit screw 122 is threadedly connected to the mounting post 103. When one end of the limit screw 122 abuts against the fixed end 118, the fixed end 118 is limited and fixed.

[0052] When the cable needs to extend to a predetermined length for an extended period of time, the fixed end 118 is rotated by turning the handle 121. Under the action of the second torsion spring 109 and the first torsion spring 108, the cable is unwound to the predetermined length. At this time, neither the first torsion spring 108 nor the second torsion spring 109 is under stress, thus avoiding failure due to long-term stress.

[0053] In the above embodiment, a pulling steel wire 123 is wound around the rotating end 119 to drive the rotating end 119 to rotate. The pulling steel wire 123 drives the rotating end 119 to rotate relative to the fixed end 118. The winding direction of the pulling steel wire 123 is consistent with the winding direction of the cable, so that the pulling steel wire 123 drives the rotating end 119 to rotate in the forward direction. At the same time, it can drive the winding wheel 104 to unwind the cable.

[0054] A push slider 106 is slidably mounted on the slide rail 105, and one end of the pulling wire 123 is fixedly connected to the push slider 106. When the push slider 106 moves, it can drive the rotating end 119 to rotate under the action of the pulling wire 123, thereby causing the winding wheel 104 to unwind.

[0055] The push slider 106 is provided with a buckle 124 for locking the cable end. Pushing the slider 106 causes the winding wheel 104 to unwind. The distance that the push slider 106 moves is the same as the length of the cable unwinding. When the cable end is locked in the buckle 124, the cable will not sag.

[0056] A guide wheel 125 is provided on the mounting post 103, located below the winding wheel 104. The cable passes between the winding wheel 104 and the guide wheel 125. Mounting blocks 126 are rotatably connected to both ends of the axis of the guide wheel 125. The mounting blocks 126 are slidably mounted on the mounting post 103, and an adjusting spring 127 is provided between them and the mounting post 103. The adjusting spring 127 is fixedly connected to both the mounting block 126 and the mounting post 103. The guide wheel 125 ensures that the cable is always tightly wound on the winding wheel 104, preventing tangling. The adjusting spring 127 can accommodate cables of different thicknesses.

[0057] Working process or usage method:

[0058] 1. When the cable does not need to extend to the predetermined length, the fixed end 118 is fixed to the mounting post 103 by screws. By pulling the cable, the winding wheel 104 rotates, which in turn drives the first torsion spring 108 to twist. At this time, the limiting plate 113 does not disengage from the limiting groove 111 under the action of the compression spring 114, so that the rotating end 119 cannot rotate. When the cable is not pulled, the cable is retracted to the initial position.

[0059] 2. When the cable needs to be extended to a predetermined length, the slider 106 is pushed to move, which in turn causes the rotating end 119 to rotate under the action of the pulling wire 123. At this time, the limiting plate 113 disengages from the limiting groove 111 under the action of the inclined surface and squeezes the compression spring 114. When the rotating end 119 rotates, the winding wheel 104 is driven to rotate under the action of the first torsion spring 108, so that the winding wheel 104 unwinds the cable to the predetermined length. At this time, the cable can continue to be pulled so that the first torsion spring 108 twists and the first cable is retracted to the predetermined length; at this time, the second torsion spring 109 is subjected to force and twists.

[0060] 3. When the cable needs to be extended to a predetermined length for an extended period of time, the fixed end 118 is rotated by turning the handle 121. This causes the winding wheel 104 to unwind under the action of the second torsion spring 109 and the first torsion spring 108, allowing the cable to be unwound to the predetermined length. At this time, neither the first torsion spring 108 nor the second torsion spring 109 is subjected to force, thus preventing failure due to long-term stress.

[0061] 4. When it is necessary to retract the cable, press button 115, and under the action of push rod 112, the limiting plate 113 will disengage from the limiting groove 111. Then, under the action of second torsion spring 109, the rotating end 119 will reverse and drive the winding wheel 104 to reverse and retract the cable.

[0062] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. An electrical automation teaching and training platform, comprising: A desktop (100) and a support (101) supporting the desktop (100), characterized in that: a mounting frame (102) is provided on the desktop (100), the mounting frame (102) includes a mounting post (103) fixedly mounted on the desktop (100), a winding wheel (104) for winding cables is rotatably disposed inside the mounting post (103), the mounting frame (102) also includes a slide rail (105) fixed on the mounting post (103), a push slider (106) is slidably connected on the slide rail (105), and an adjustment component for adjusting the cable extension length is provided inside the mounting post (103), the adjustment component including: The connecting wheel (107) installed in the mounting column (103) is rotated, and the connecting wheel (107) and the winding wheel (104) rotate in cooperation; The first torsion spring (108) is disposed between the connecting wheel (107) and the winding wheel (104), with its two ends fixedly connected to the connecting wheel (107) and the winding wheel (104) respectively; The second torsion spring (109) is installed on the connecting wheel (107) and is used to reset the connecting wheel (107); A snap-fit ​​assembly is provided on the mounting post (103) for limiting the connection wheel (107).

2. The electrical automation teaching and training platform according to claim 1, characterized in that: A ratchet ring (110) is fixedly connected to the connecting wheel (107). The ratchet ring (110) has multiple limiting grooves (111) circumferentially opened for limiting the buckle assembly. The inner wall of one side of the limiting groove (111) is inclined.

3. The electrical automation teaching and training platform according to claim 2, characterized in that: The limiting assembly includes a push rod (112) slidably disposed on the mounting post (103). One end of the push rod (112) is inserted into the mounting post (103) and slidably connected to a limiting plate (113) for embedding into the limiting groove (111). A compression spring (114) is provided between the limiting plate (113) and the push rod (112). One end of the push rod (112) extends out of the mounting post (103) and is provided with a button (115). A connecting spring (120) is provided between the push rod (112) and the mounting post (103). Both ends of the connecting spring (120) are fixedly connected to the push rod (112) and the mounting post (103) respectively.

4. The electrical automation teaching and training platform according to claim 3, characterized in that: The push rod (112) is provided with a guide groove (116), the limiting plate (113) is slidably engaged with the guide groove (116), the push rod (112) is fixedly connected with an upper side plate (117), and the compression spring (114) is disposed between the upper side plate (117) and the limiting plate (113).

5. The electrical automation teaching and training platform according to claim 4, characterized in that: A pulling wire (123) is wound on the connecting wheel (107). One end of the pulling wire (123) is connected to the push slider (106). The winding direction of the pulling wire (123) is the same as that of the cable winding direction.

6. The electrical automation teaching and training platform according to claim 1, characterized in that: The push slider (106) is provided with a buckle (124) for locking the cable end.

7. The electrical automation teaching and training platform according to claim 5, characterized in that: The connecting wheel (107) includes a fixed end (118) that rotatably engages with the mounting post (103) and a rotating end (119) that is rotatably connected to the fixed end (118). The two ends of the second torsion spring (109) are fixedly connected to the fixed end (118) and the rotating end (119) respectively.

8. The electrical automation teaching and training platform according to claim 7, characterized in that: One end of the fixed end (118) extends out of the mounting post (103) and is provided with a handle (121). At the same time, a limiting screw (122) is threaded on the mounting post (103) and its end abuts against the fixed end (118) to limit the fixed end (118).

9. The electrical automation teaching and training platform according to claim 1, characterized in that: A guide wheel (125) is provided on the mounting post (103) located below the winding wheel (104). The cable passes between the winding wheel (104) and the guide wheel (125). Mounting blocks (126) are rotatably connected to both ends of the axis of the guide wheel (125). The mounting blocks (126) are slidably mounted on the mounting post (103) and an adjusting spring (127) is provided between the mounting post (103) and the mounting post (103). The adjusting spring (127) is fixedly connected to the mounting block (126) and the mounting post (103) respectively.

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