Modular electrical control cabinet for teaching

Abstract

This invention discloses a modular electrical control cabinet for teaching, including a cabinet body, a base plate inside the cabinet, a mounting plate slidably connected to the upper side of the base plate, and electronic modules placed on the mounting plate. A driving device is provided between the base plate and the cabinet body. The driving device includes a vertical guide rail, a synchronous belt mechanism, and a shifting and fixing device. The vertical guide rail is fixedly connected to the cabinet body, and the base plate is slidably mounted on the vertical guide rail. The synchronous belt mechanism includes a driving pulley, a driven pulley, and a synchronous belt. A lead screw and slider mechanism is provided between the base plate and the mounting plate, and a clutch is provided between the lead screw of the lead screw and the tooth surface of the synchronous belt. This invention uses the shifting and fixing device to allow the base plate to be driven by the driving device to rise and fall or be fixed in a fixed position on the guide rail, thereby adjusting the height of the plate to rationally allocate the space inside the cabinet. The clutch allows selection of the power connected to the driving device, enabling the mounting plates on one or more base plates to be moved horizontally through a single driving device, saving costs.

Description

Technical Field

[0001] This invention relates to the field of control cabinet technology, and in particular to a modular electrical control cabinet for teaching. Background Technology

[0002] A control cabinet is an electrical cabinet that controls motors and switches, providing overload, short circuit, and phase loss protection. It boasts advantages such as compact structure, stable operation, and comprehensive functions. It is widely used in industries such as power, metallurgy, chemical, papermaking, and environmental wastewater treatment. Currently, Rittal electrical cabinets are leaders in this field, offering modularity and detachability. Chinese patent CN209824258U discloses a modular detachable electrical control cabinet, including a cabinet body. Two movable plates are movably installed inside the cabinet, and two threaded rods are threaded onto the movable plates. Two fixing blocks are fixedly installed on one side of the cabinet body. A housing is fixedly installed on the side of the cabinet body near the fixing blocks, with one side of the housing open. Both fixing blocks are located inside the housing. One end of each threaded rod passes through the corresponding fixing block and extends into the housing body. A first pulley is fixedly sleeved on the threaded rod. A motor is fixedly installed on the inner wall of one side of the housing body, and a support base is fixedly installed on one side of the cabinet. This utility model has a simple structure and is easy to use. It does not require manual pulling of the movable plate to move the module body out, which is convenient for teaching and replacing the module body, saving time and effort and meeting the needs of teaching. The defects of the above-mentioned prior art are: (1) it does not have a lifting function and cannot adjust the height of the plate to reasonably allocate the space inside the cabinet; (2) the number of motor drive devices is too large, and the more plates there are, the higher the cost. Summary of the Invention

[0003] The present invention aims to solve the problems existing in the prior art by providing a modular electrical control cabinet for teaching, which can control the lifting and lowering of boards and uses a single drive device to save costs.

[0004] The technical solution adopted by this invention to solve its technical problem is as follows: A modular electrical control cabinet for teaching includes a cabinet body, a base plate inside the cabinet body, a mounting plate slidably connected to the upper side of the base plate, and an electronic module placed on the mounting plate. A driving device is provided between the base plate and the cabinet body. The driving device includes a vertical guide rail, a synchronous belt mechanism, and a displacement fixing device. The vertical guide rail is fixedly connected to the cabinet body, and the base plate is slidably mounted on the vertical guide rail. The synchronous belt mechanism includes a driving pulley, a driven pulley, and a synchronous belt. The driven pulley and the driving pulley are rotatably mounted at the upper and lower ends of the vertical guide rail, respectively. The driving pulley is connected to a worm gear reducer, and the worm gear reducer is connected to a rotary driver. A displacement fixing device is fixedly mounted on the base plate. The displacement fixing device is used to fix the base plate to the vertical guide rail or the synchronous belt. A screw-slider mechanism is provided between the base plate and the mounting plate. A clutch is provided between the screw of the screw-slider mechanism and the tooth surface of the synchronous belt. The clutch is used to cut off or transmit the power input to the screw-slider mechanism after the vertical motion of the synchronous belt is converted into horizontal motion.

[0005] In a further improvement, the displacement fixation device includes a first adjusting screw and a first sliding block. The first adjusting screw is rotatably mounted on the base plate, and one end of the first adjusting screw is threadedly connected to the first sliding block. The first sliding block and the base plate are slidably connected. Springs are fixedly connected to both sides of the first sliding block, and the springs are fixedly connected to locking blocks. The locking blocks and the sliding blocks are slidably connected.

[0006] To further improve the design, the locking block is equipped with locking teeth, and a rack is fixedly installed on the vertical guide rail. The locking teeth are engaged with the rack or a synchronous belt.

[0007] To further improve the design, the locking block is provided with a limiting groove, on which a locking tooth is slidably installed, and elastic pads are provided between the upper and lower ends of the locking tooth and the limiting groove.

[0008] To further improve the design, a magnetic friction pad is fixedly installed at the tip of the tooth.

[0009] To further improve the design, the vertical guide rail is equipped with a soft magnet inside, which is connected to an electromagnet.

[0010] In a further improvement, the clutch includes a second adjusting screw and a second sliding block. The second adjusting screw is rotatably mounted on the base plate, and one end of the adjusting screw is threadedly connected to the second sliding block. The second sliding block and the base plate are slidably connected. A gear commutator is provided on the second sliding block. A drive gear is fixedly mounted on the input shaft of the gear commutator. The drive gear meshes with the tooth surface of the synchronous belt. The output shaft of the gear commutator and the lead screw of the lead screw and slider mechanism are circumferentially fixed and axially slidingly connected.

[0011] To further improve the design, the gear commutator is equipped with a pair of meshing bevel gears inside. The two bevel gears are fixedly connected to the input shaft and the output shaft, respectively. The output shaft of the gear commutator is provided with a hexagonal bar at its end. The lead screw end face of the lead screw slider mechanism is provided with an internal hexagonal hole, which is inserted into the hexagonal bar.

[0012] The beneficial effects of the present invention are: (1) The present invention uses a shift fixer to fix the substrate to the vertical guide rail or belt, so that the substrate can be driven by the drive device to lift or be fixed in the fixed position of the guide rail, thereby adjusting the height of the board to reasonably allocate the space inside the cabinet; (2) The power of the drive device can be selected through the clutch, so that the mounting plates on one or more substrates can be moved by a set of drive devices, saving costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention;

[0014] Figure 2 for Figure 1 A magnified schematic diagram of a local structure;

[0015] Figure 3 This is a schematic diagram of the clutch when engaged;

[0016] Figure 4 This is a schematic diagram of the clutch when it is disengaged;

[0017] Figure 5 This is a schematic diagram of the displacement retainer when it is fixedly connected to the synchronous belt;

[0018] Explanation of reference numerals in the attached drawings: 100, cabinet; 110, base plate; 120, mounting plate; 130, electronic module; 200, vertical guide rail; 210, rack and pinion; 300, synchronous belt mechanism; 310, driving pulley; 320, driven pulley; 330, synchronous belt; 340, worm gear reducer; 350, rotary driver; 400, displacement fixing device; 410, first adjusting screw; 420, first sliding block; 430, spring; 440, locking block; 441, locking tooth; 442, limiting movable groove; 443, elastic pad; 500, lead screw slider mechanism; 600, clutch; 610, second adjusting screw; 620, second sliding block; 630, gear reversing device; 631, driving gear. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] See attached document Figure 1In this embodiment 1, a modular electrical control cabinet for teaching includes a cabinet 100. A base plate 110 is disposed within the cabinet 100. A mounting plate 120 is slidably connected to the upper side of the base plate 110. An electronic module 130 is placed on the mounting plate 120. A driving device is provided between the base plate 110 and the cabinet 100. The driving device includes a vertical guide rail 200, a synchronous belt mechanism 300, and a shifting and fixing device 400. The vertical guide rail 200 is fixedly connected to the cabinet 100, and the base plate 110 is slidably mounted on the vertical guide rail 200. The synchronous belt mechanism 300 includes a driving pulley 310, a driven pulley 320, and a synchronous belt 330. The driven pulley 320 and the driving pulley 310 are respectively... Rotatably mounted at the upper and lower ends of the vertical guide rail 200, the drive pulley 310 is connected to the worm gear reducer 340, and the worm gear reducer 340 is connected to the rotary driver 350. The base plate 110 is fixedly mounted with a displacement retainer 400, which is used to fix the base plate 110 to the vertical guide rail 200 or the synchronous belt. A lead screw and slider mechanism 500 is provided between the base plate 110 and the mounting plate 120. A clutch 600 is provided between the lead screw of the lead screw and slider mechanism 500 and the tooth surface of the synchronous belt 330. The clutch 600 is used to cut off or transmit the power input to the lead screw and slider mechanism 500 after the vertical motion of the synchronous belt 330 is converted into horizontal motion.

[0021] How to use:

[0022] 1. Fixed state: When in use, the shift fixer 400 fixes the substrate 110 to the vertical guide rail 200, thereby fixing the height position of the substrate 110 and the electronic module 130 on it within the cabinet 100.

[0023] 2. Lifting state: When in use, the shifting and fixing device 400 fixes the base plate 110 to the synchronous belt 330. The rotary driver 350 (i.e., the motor) starts to rotate and drives the synchronous belt mechanism 300 through the worm gear reducer 340. This allows the synchronous belt 330 to lift the base plate 110 and the electronic module 130 on it, thereby adjusting the height of the electronic module 130 and rationally allocating the space inside the cabinet.

[0024] 3. Pull-out state: In the fixed state described above, the clutch 600 engages with the synchronous belt 330, transmitting the power from the up-and-down motion of the synchronous belt 330 to the horizontal motion input to the screw-slider mechanism 500. The screw of the screw-slider mechanism 500 rotates, driving the mounting plate 120 (i.e., the slider) to move left and right through the thread, thereby realizing the pull-out function of the electronic module 130, making it convenient for users to replace it.

[0025] As attached Figure 2As shown in Example 2, based on Example 1, the displacement fixer 400 includes a first adjusting screw 410 and a first sliding block 420. The first adjusting screw 410 is rotatably mounted on the base plate 110. One end of the first adjusting screw is threadedly connected to the first sliding block 420. The first sliding block 420 is slidably connected to the base plate 110. Springs 430 are fixedly connected to both sides of the first sliding block 420. The springs 430 are fixedly connected to the locking block 440. The locking block 440 is slidably connected to the sliding block.

[0026] When the first adjusting screw 410 rotates, it drives the first sliding block 420 to move left and right through the thread, so that the locking block 440 can be engaged with the vertical guide rail 200 or the synchronous belt. The spring 430 can delay the separation and engage the locking block 440, which plays a safety role and better realizes the transition between the two, preventing the base plate 110 from being accidentally dropped.

[0027] The locking block 440 is provided with a locking tooth 441, and the vertical guide rail 200 is fixedly provided with a rack 210. The locking tooth 441 engages with the rack 210 or the synchronous belt. The locking tooth 441 and the rack 210 facilitate fixed connection and release.

[0028] Preferably, the locking block 440 is provided with a limiting movable groove 442, and a locking tooth 441 is slidably installed on the limiting movable groove 442. An elastic pad 443 is provided between the upper and lower ends of the locking tooth 441 and the limiting movable groove 442. The elastic pad 443 can provide a certain amount of vertical movement, reducing the requirements for engagement positioning accuracy and preventing jamming during switching.

[0029] Preferably, a magnetic friction pad is fixedly installed at the tip of the tooth 441. A soft magnet is provided inside the vertical guide rail 200, and the soft magnet is connected to an electromagnet. When the electromagnet is energized, the soft magnet is magnetized, which magnetically attracts the magnetic friction pad, thereby improving the locking effect of the tooth 441.

[0030] As attached Figure 3 As shown in Embodiment 2, based on Embodiment 1 or 2, the clutch 600 includes a second adjusting screw 610 and a second sliding block 620. The second adjusting screw 610 is rotatably mounted on the base plate 110, and one end of the adjusting screw is threadedly connected to the second sliding block 620. The second sliding block 620 and the base plate 110 are slidably connected. A gear commutator 630 is provided on the second sliding block 620. A drive gear 631 is fixedly mounted on the input shaft of the gear commutator 630. The drive gear 631 meshes with the tooth surface of the synchronous belt 330. The output shaft of the gear commutator 630 and the lead screw of the lead screw slider mechanism 500 are circumferentially fixed and axially slidingly connected.

[0031] When the second adjusting screw 610 rotates, it drives the second sliding block 620 to move left and right through the thread, so that the driving gear 631 of the gear reversing device 630 can be engaged or disengaged from the synchronous belt. When engaged, the synchronous belt drives the driving gear 631 to rotate, and after the gear reversing transmission through the gear reversing device 630, the power is output to the lead screw slider mechanism 500 to drive the lead screw to rotate and work.

[0032] The gear commutator 630 has a pair of meshing bevel gears inside. The two bevel gears 632 are fixedly connected to the input shaft and output shaft respectively, enabling the aforementioned reversing transmission. The output shaft end of the gear commutator 630 is provided with a hexagonal bar, and the lead screw end face of the lead screw mechanism 500 is provided with an internal hexagonal hole, which is inserted into the hexagonal bar. The internal hexagonal hole and the hexagonal bar provide a method for achieving circumferential fixation and axial sliding connection.

[0033] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art will understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A modular electrical control cabinet for teaching, comprising a cabinet body (100), a base plate (110) is arranged in the cabinet body (100), an installation plate (120) is slidably connected to the upper side of the base plate (110), and an electronic module (130) is placed on the installation plate (120), characterized in that: A driving device is provided between the base plate (110) and the cabinet (100). The driving device includes a vertical guide rail (200), a synchronous belt mechanism (300), and a displacement fixer (400). The vertical guide rail (200) is fixedly connected to the cabinet (100), and the base plate (110) is slidably mounted on the vertical guide rail (200). The synchronous belt mechanism (300) includes a driving pulley (310), a driven pulley (320), and a synchronous belt (330). The driven pulley (320) and the driving pulley (310) are respectively rotatably mounted at the upper and lower ends of the vertical guide rail (200). The driving pulley (310) is connected to a worm gear reducer (340). The worm gear reducer (340) is connected to the rotary driver (350). A displacement retainer (400) is fixedly installed on the base plate (110). The displacement retainer (400) is used to fix the base plate (110) to the vertical guide rail (200) or the synchronous belt. A lead screw and slider mechanism (500) is provided between the base plate (110) and the mounting plate (120). A clutch (600) is provided between the lead screw of the lead screw and the tooth surface of the synchronous belt (330). The clutch (600) is used to cut off or transmit the vertical motion of the synchronous belt (330) to the lead screw and slider mechanism (500) after it is converted into horizontal motion. The input power, the displacement retainer (400) includes a first adjusting screw (410) and a first sliding block (420), the first adjusting screw (410) is rotatably mounted on the base plate (110), one end of the first adjusting screw (410) is threaded to the first sliding block (420), the first sliding block (420) and the base plate (110) are slidably connected, springs (430) are fixedly connected to both sides of the first sliding block (420), the springs (430) are fixedly connected to the locking block (440), the locking block (440) and the sliding block are slidably connected, the clutch (600) includes a second adjusting screw (6 10) and the second sliding block (620), the second adjusting screw (610) is rotatably mounted on the base plate (110), one end of the adjusting screw is threaded to the second sliding block (620), the second sliding block (620) and the base plate (110) are slidably connected, the second sliding block (620) is provided with a gear commutator (630), the input shaft of the gear commutator (630) is fixedly mounted with a drive gear (631), the drive gear (631) meshes with the tooth surface of the synchronous belt (330), the output shaft of the gear commutator (630) and the lead screw of the lead screw slider mechanism (500) are circumferentially fixed and axially slidably connected.

2. The modular electrical control cabinet for teaching purposes of claim 1, wherein: The locking block (440) is provided with a locking tooth (441), and a rack (210) is fixedly provided on the vertical guide rail (200). The locking tooth (441) is engaged with the rack (210) or the synchronous belt.

3. The modular electrical control cabinet for teaching purposes of claim 2, wherein: The locking block (440) is provided with a limiting movable groove (442), and a locking tooth (441) is slidably installed on the limiting movable groove (442). An elastic pad (443) is provided between the upper and lower ends of the locking tooth (441) and the limiting movable groove (442).

4. The modular electrical control cabinet for teaching purposes of claim 3, wherein: The gear commutator (630) has a pair of meshing bevel gears inside. The two bevel gears are fixedly connected to the input shaft and the output shaft respectively. The output shaft of the gear commutator (630) is provided with a hexagonal bar. The lead screw of the lead screw slider mechanism (500) is provided with an internal hexagonal hole, which is inserted into the hexagonal bar.

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