A mounting seat, electrical equipment and power electronic test platform

Abstract

This invention discloses a mounting base, electrical equipment, and a power electronics testing platform, including a movable frame and four latches. Four elastic pins are symmetrically installed on the inner side of the movable frame, and each elastic pin is fixedly connected to a follower socket at its end. The four latches are symmetrically fixed in pairs on the outside of the equipment to be installed. An air cylinder is provided on the rear side of the movable frame, and the air cylinder includes a piston rod and elastic supports on the piston rod. This invention allows workers to continuously inject air into each elastic pin by continuously stepping on or pushing the piston rod. The air pressure then pushes the piston and latches backward, disengaging the latches from the electrical equipment's latches. The electrical equipment can then be moved horizontally to slide and push the movable frame, thus unlocking the device. The disassembly process is convenient, the performance is stable, and no tools are required for bolt removal, greatly improving disassembly efficiency.

Description

Technical Field

[0001] This invention belongs to the field of electronic technology, and in particular relates to a mounting base, electrical equipment, and power electronics testing platform. Background Technology

[0002] In the experimental hall, existing equipment is often installed and fixed using bolts or welding. These two methods are inconvenient during assembly and disassembly, and welding can also introduce significant deviations in installation accuracy. Both disassembly and installation require considerable effort from staff. In particular, the electrical equipment and power electronics testing platforms in the experimental hall frequently need to be disassembled, moved, and replaced; the current installation methods, due to their lack of flexibility, cause numerous inconveniences.

[0003] Based on the shortcomings of the existing equipment installation and disassembly methods, which are not convenient and efficient and take a long time, a more convenient, efficient and reliable disassembly and assembly method is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a mounting base, electrical equipment, and power electronics testing platform to solve the above-mentioned technical problems.

[0005] In a first aspect, a mounting base includes a movable frame and four clips. Four elastic pins are symmetrically installed on the inner side of the movable frame, and the ends of the elastic pins are fixedly connected to follower inserts. The four clips are symmetrically fixedly installed in pairs on the outside of the equipment to be installed. The elastic pin includes an internal piston, a first spring, and a locking pin. The first spring elastically supports the locking pin as it passes through the follower box and engages with the buckle to lock the electrical equipment. When the electrical equipment is pushed into the movable frame, the locking pin in the elastic pin is pushed out by the first spring and engages with the buckle to fix the electrical equipment. An air cylinder is installed at the rear of the mobile frame. The air cylinder includes a piston rod and a second spring that is elastically supported at the bottom of the piston rod. The bottom outlet of the air cylinder is fixedly connected to a one-way four-way pipe. The one-way four-way pipe diverts the airflow to the inner cavities of four elastic pins through an air guide pipe. A one-way valve is installed on the piston of the piston rod. The one-way valve is closed when there is positive pressure in the inner cavity of the air cylinder and open when there is negative pressure. A one-way valve is installed at the open end of the one-way four-way pipe that connects to the air cylinder. The one-way valve of the one-way four-way pipe is open when there is positive pressure in the inner cavity of the air cylinder and closed when there is negative pressure.

[0006] By continuously stepping on or pushing the piston rod, workers can continuously inject air into each elastic pin, thereby using air pressure to push the piston and the locking pin backward, causing the locking pin to disengage from the electrical equipment's latch, thus unlocking the device. The disassembly process is convenient and the performance is stable, eliminating the need for workers to use tools to disassemble the bolts, greatly improving disassembly efficiency.

[0007] In addition, the one-way valve here is only opened when air is injected from the air cylinder into the one-way four-way pipe; otherwise, it is closed. This prevents the airflow injected into the elastic pin from flowing back, ensuring that the operator only needs to press or step on the air cylinder to gradually inflate the inner cavity of the elastic pin. The larger positive pressure inside the elastic pin pushes the piston toward the first spring, thereby disengaging the latch from being locked by the latch.

[0008] Preferably, the follower box includes a go-stop ball movably fitted inside, the bottom of the go-stop ball being connected to a first gear disposed outside the follower box via a rotating shaft, and a rack being movably engaged on the inner insert plate of the movable frame, the rack being meshed with the first gear, and the rack rotating horizontally will drive the first gear to rotate. The rotation of the first gear will cause the sealing plug to rotate synchronously. That is to say, after the rack moves, it can control the working state of the first gear and the sealing plug at the same time. When the electrical equipment is pushed into the moving frame and pushed out of the moving frame, the rack will have two different directions of movement. This will bring different working states to the sealing plug and the first gear. When the electrical equipment is pushed in, the first gear drives the circular through hole of the go-stop ball to align with the locking pin and the sealing plug can block the exhaust column. When the electrical equipment is pushed out, the first gear drives the circular through hole of the go-stop ball to misalign with the locking pin and the sealing plug can conduct the exhaust column to the external environment.

[0009] The ball has a through circular hole, and the inner diameter of the circular hole is matched with the diameter of the locking pin. When the locking pin is engaged in the buckle, it passes through the circular hole of the ball. The locking pin does not pass through the go-stop ball, and after the go-stop ball rotates 90 degrees, the end of the locking pin is blocked by the go-stop ball. When the electrical equipment is pushed out of the interior of the moving frame, the rack at the end will move horizontally, and the rack will drive the first gear to rotate. The go-stop ball will then rotate inside. After rotating 90 degrees, the circular through hole of the go-stop ball is completely misaligned with the extension direction of the locking pin. Even if the locking pin is pushed by the first spring, it will be blocked by the go-stop ball. In this process, the sealing plug moves down with the rotation of the first gear, and the top of the sealing plug gradually detaches from the seal on the exhaust column, causing the internal pressure of the elastic pin to finally be released. When the electrical equipment is pushed into the moving frame, it will move horizontally in the opposite direction with the rack. As a result, the first gear reverses until its circular through hole aligns with the locking pin. The locking pin, pushed by the first spring, passes through the go-stop ball and locks the electrical equipment in place. At the same time, the sealing plug also reverses with the first gear and rotates upward to block the exhaust port of the exhaust column.

[0010] Preferably, the elastic pin is provided with a threaded vent column, the inner side of which is threaded with a sealing plug, the gear of the sealing plug meshing with the first gear, and the side of the threaded vent column is provided with a vent port, which is initially blocked by the sealing plug.

[0011] Preferably, the inner side of the buckle is a rounded rectangular structure, and the latches, after being engaged with the inner side of the buckle, abut against the rounded corners of the inner side of the buckle, thereby achieving fixed positioning of the electrical equipment in all directions; The number of clips is the same as the number of flexible pins, and they are set on both sides of the electrical equipment. The horizontal height of the four clips is the same, and the distance between the center of the inner rounded corners of the two clips on the same side is equal to the distance between the center axes of the two pins on the same side. So when the pins on both sides extend and engage with the rounded corners of the clips, the entire electrical equipment is fixed in four positions in both the horizontal and vertical directions.

[0012] Preferably, a second magnetic block is provided on the outside of the rack, a first magnetic block is provided on the outside of the electrical equipment, and the first magnetic block and the second magnetic block are permanent magnets that attract each other with opposite polarities. A limit block is also provided on the inner side plate of the movable frame to block the second magnetic block. The attraction between the first and second magnetic blocks is to ensure that when the electrical equipment moves to the outside of the moving frame, the first and second magnetic blocks, which were originally in contact, can continue to move synchronously due to the attraction between them. The limiting block can limit the second magnetic block, preventing the second magnetic block from driving the rack to move endlessly and preventing the rack from detaching from the moving frame body. The limiting block can block the second magnetic block at a preset position, forcibly separating it from the first magnetic block.

[0013] Preferably, the width of the first magnetic block is less than or equal to the thickness of the rack, and the first magnetic block will push the second magnetic block to move inward synchronously during the horizontal inward displacement. The first magnetic block and the limiting block never come into contact, while the second magnetic block will come into contact with the limiting block and be blocked by it during the horizontal outward displacement. When the electrical equipment is slid into the inner side of the moving frame and is about to be in place, the first magnetic block will contact the second magnetic block and push the second magnetic block together. Thus, the overall sliding of the rack can drive the first gear to rotate. When the second magnetic block is in place, the locking pin passes through the follower box and inserts into the buckle to lock it. Thus, the second magnetic block will remain in this position during the subsequent use period. When the latch retracts and locks the buckle, the electrical equipment can be pushed towards the opening of the moving frame to disengage it from the moving frame. During this process, since the first and second magnetic blocks are magnets that attract each other, the buckle pulls the second magnetic block to move synchronously, and the rack as a whole moves accordingly. This causes the first gear to rotate in the opposite direction. When the second magnetic block moves to a certain position, the first gear rotates to its position, and the second magnetic block is also in contact with the limiting block and blocked by the limiting block. Thus, the second magnetic block disengages from the first magnetic block, preventing the second magnetic block from being pulled out or the first gear from rotating too much.

[0014] Preferably, the air cylinder is installed in a mounting box on the rear side of the mobile frame, and the mounting box is opened and closed using a sliding cover. The sliding cover is one of many covering methods. Those skilled in the art can also use other convenient disassembly covering methods to prevent the air cylinder from being directly exposed to the external environment and easily damaged. When the worker disassembles the electrical equipment, he only needs to open the covering cover before operating the air cylinder to inject air, which is convenient and quick.

[0015] In a second aspect, an electrical device includes a device body mounted on the aforementioned mounting base.

[0016] Thirdly, a power electronics testing platform is characterized by comprising multiple mounting bases as described above.

[0017] The beneficial effects of this invention are as follows: 1. In this invention, when the electrical equipment is slid into place on the inner side of the moving frame, the first magnetic block will contact the second magnetic block and push the second magnetic block together. The overall sliding of the rack can drive the first gear to rotate until its circular through hole aligns with the locking pin. The locking pin, pushed by the first spring, passes through the stop ball and locks the electrical equipment. The four locking pins simultaneously lock the four locking posts of the electrical equipment, which has a good limiting effect on the horizontal and vertical directions of the electrical equipment, achieving a firm fixation that is simple, fast and efficient.

[0018] 2. This invention allows workers to continuously inject air into each elastic pin by stepping on or pushing the piston rod. The air pressure then pushes the piston and locking pin backward, causing the locking pin to disengage from the electrical equipment's latch. The electrical equipment can then be moved horizontally to slide the movable frame, thus unlocking the device. The disassembly process is convenient and the performance is stable. Workers do not need to use tools to disassemble the bolts, greatly improving disassembly efficiency.

[0019] 3. This invention achieves the purpose of controlling the displacement distance of the rack during the assembly and disassembly process by setting the first magnetic block, the second magnetic block and the limiting block to cooperate only in a certain section. This controls the rotation angle of the first gear and the sealing plug. Thus, when the rack moves, the rotation of the first gear can be controlled, thereby causing the go-stop ball to rotate. This achieves the purpose of misaligning or aligning the circular through hole of the go-stop ball with the locking pin. At the same time, the rotation of the sealing plug can achieve the purpose of controlling the release or sealing of the elastic pin exhaust column. Attached Figure Description

[0020] The accompanying drawings, as part of this invention, are provided to further illustrate the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation thereof. Clearly, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0021] In the attached diagram: Figure 1 This is a top view of the internal structure of the mobile frame of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is an enlarged schematic diagram of the buckle of the present invention; Figure 4 This is a schematic diagram of the installation and use structure of the present invention; Figure 5 This is a schematic diagram of the pneumatically driven piston of the present invention; Figure 6 This is a schematic diagram of the pressure relief function inside the elastic pin of the present invention; Figure 7 This is a cross-sectional view of the internal structure of the air cylinder of the present invention; Figure 8 This is a schematic diagram illustrating the disassembly of the rack of the present invention; Figure 9 This is a schematic diagram of the overall structure of another embodiment of the present invention.

[0022] In the diagram: 1. Movable frame; 11. Telescopic wheel; 2. Equipment to be installed; 21. Buckle; 22. First magnetic block; 3. Elastic pin; 31. Piston; 32. First spring; 33. Locking pin; 4. Follower box; 41. Go / stop ball; 5. Sealing plug; 6. First gear; 7. Rack; 71. Second magnetic block; 8. Air cylinder; 81. Piston rod; 82. Second spring; 9. One-way four-way pipe; 101. Limiting block.

[0023] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] like Figures 1 to 9 As shown in the embodiment of the present invention, a mounting base includes a movable frame 1 and four latches 21. Four elastic pins 3 are symmetrically mounted on the inner side of the movable frame 1. The ends of the elastic pins 3 are fixedly connected to a follower housing 4. The four latches 21 are symmetrically fixedly mounted in pairs on the outside of the device 2 to be installed. Two ball bearing tracks are also arranged side-by-side on the bottom surface of the movable frame 1 to facilitate the movement of the device 2 to be installed. Each elastic pin 3 includes an internal piston 31, a first spring 32, and a latch 33. The first spring 32 elastically supports the latch 33 as it passes through the follower housing 4 and engages with the latches 21, thereby locking the device 2 to be installed. When the device 2 to be installed is pushed into the mobile frame 1, the locking pin 33 in the elastic pin 3 is pushed out by the first spring 32 and locked into the buckle 21, thereby fixing the device 2 to be installed; an air cylinder 8 is provided on the rear side of the mobile frame 1. The air cylinder 8 includes a piston rod 81 and a second spring 82 elastically supported at the bottom of the piston rod 81. The bottom outlet of the air cylinder 8 is fixedly connected to a one-way four-way pipe 9. The one-way four-way pipe 9 diverts the airflow to the inner cavity of the four elastic pins 3 through the air guide pipe. A one-way valve is provided on the piston of the piston rod 81. The one-way valve is closed when the inner cavity of the air cylinder 8 is under positive pressure and open when it is under negative pressure.

[0028] By continuously stepping on or pushing the piston rod 81, staff can continuously inject air into each elastic pin 3, thereby using air pressure to push the piston 31 and the locking pin 33 backward, causing the locking pin 33 to disengage from the buckle 21 of the device to be installed 2, thus unlocking the device. The disassembly process is convenient and the performance is stable. Staff do not need to use tools to disassemble the bolts, which greatly improves the disassembly efficiency.

[0029] A one-way valve is provided at the open end of the one-way four-way pipe 9 that connects to the air cylinder 8. The one-way valve of the one-way four-way pipe 9 is open when there is positive pressure in the inner cavity of the air cylinder 8 and closed when there is negative pressure. Therefore, the one-way valve is only opened when air is injected from the air cylinder 8 into the one-way four-way pipe 9. Otherwise, it is closed. This prevents the airflow injected into the elastic pin 3 from flowing back. It ensures that the operator only needs to press or step on the air cylinder 8 to gradually inflate the inner cavity of the elastic pin 3. The large positive pressure inside the elastic pin 3 pushes the piston 31 towards the first spring 32, thereby causing the buckle 21 to disengage from the locking pin 33.

[0030] The follower box 4 includes a go-stop ball 41 movably fitted inside. The bottom of the go-stop ball 41 is connected to a first gear 6 located outside the follower box 4 via a rotating shaft. A rack 7 is movably mounted on the inner insert plate of the moving frame 1. The rack 7 is meshed with the first gear 6. When the rack 7 moves horizontally, it will drive the first gear 6 to rotate.

[0031] The rotation of the first gear 6 will cause the sealing plug 5 to rotate synchronously. That is to say, after the rack 7 moves, it can control the working state of the first gear 6 and the sealing plug 5 at the same time. When the device to be installed 2 is pushed into the moving frame 1 and pushed out of the moving frame 1, the rack 7 will have two different directions of movement. This will bring different working states to the sealing plug 5 and the first gear 6. When the device to be installed 2 is pushed in, the first gear 6 will drive the circular through hole of the go-stop ball 41 to align with the locking pin 33 and the sealing plug 5 can block the exhaust column. When the device to be installed 2 is pushed out, the first gear 6 will drive the circular through hole of the go-stop ball 41 to misalign with the locking pin 33 and the sealing plug 5 can guide the exhaust column to the external environment.

[0032] The elastic pin 3 is provided with a threaded vent column, and the inner side of the threaded vent column is threadedly connected with a sealing plug 5. The gear of the sealing plug 5 is meshed with the first gear 6. The side of the threaded vent column is provided with an vent. In the initial state, the sealing plug 5 blocks the vent.

[0033] The ball 41 has a through circular hole, the inner diameter of which is matched with the diameter of the locking pin 33. When the locking pin 33 is inserted into the buckle 21, it passes through the circular hole of the ball 41.

[0034] The locking pin 33 does not pass through the stop ball 41, and after the stop ball 41 rotates 90 degrees, the end of the locking pin 33 is blocked by the stop ball 41. When the device to be installed 2 is pushed out of the interior of the moving frame 1, the rack 7 will move horizontally at the end. Then the rack 7 drives the first gear 6 to rotate, and the stop ball 41 rotates inside. After rotating 90 degrees, the circular through hole of the stop ball 41 is completely misaligned with the extension direction of the locking pin 33. However, even if the locking pin 33 is pushed by the first spring 32, it will be blocked by the stop ball 41. In this process, the sealing plug 5 moves down with the rotation of the first gear 6, and the top of the sealing plug 5 gradually detaches from the seal on the exhaust column, causing the internal pressure of the elastic pin 3 to finally be released.

[0035] When the device to be installed 2 is pushed into the moving frame 1, it will move the rack 7 in the opposite direction horizontally. As a result, the first gear 6 reverses until its circular through hole aligns with the locking pin 33. The locking pin 33 is pushed by the first spring 32 and passes through the stop ball 41 to lock the buckle 21 of the device to be installed. At the same time, the sealing plug 5 will also reverse with the first gear 6. The sealing plug 5 rotates and rises to block the exhaust port of the exhaust column.

[0036] The inner side of the buckle 21 is a rounded rectangular structure. After the latch 33 is inserted into the inner side of the buckle 21, it abuts against the rounded corner of the inner side of the buckle 21 to achieve fixed positioning of the device 2 to be installed in various directions. The number of clips 21 is the same as the number of elastic pins 3, and they are set on both sides of the device 2 to be installed. The horizontal height of the four clips 21 is the same, and the distance between the center of the inner rounded corners of two clips 21 on the same side is equal to the distance between the center axes of two pins 33 on the same side. So when the pins 33 on both sides extend and are engaged in the rounded corners of the clips 21, the entire device 2 to be installed will have four positions that are limited in both the horizontal and vertical directions, and will be firmly fixed.

[0037] The rack 7 is provided with a second magnetic block 71 on its outside, and the device to be installed 2 is provided with a first magnetic block 22 on its outside. The first magnetic block 22 and the second magnetic block 71 are permanent magnets that attract each other with opposite polarities. The inner insert plate of the moving frame 1 is also provided with a limit block 101 to block the second magnetic block 71. The attraction between the first magnetic block 22 and the second magnetic block 71 with opposite polarities is so that when the device to be installed 2 moves to the outside of the moving frame 1, the first magnetic block 22 and the second magnetic block 71 that were originally in contact can continue to move synchronously due to the attraction between them. The limit block 101 can provide a limit for the second magnetic block 71 to prevent the second magnetic block 71 from driving the rack 7 to move endlessly and to prevent the rack 7 from detaching from the body of the moving frame 1. The limit block 101 can block the second magnetic block 71 at a preset position and forcibly separate it from the first magnetic block 22.

[0038] In this configuration, the width of the first magnetic block 22 is less than or equal to the thickness of the rack 7, and during its horizontal inward displacement, the first magnetic block 22 will press against the second magnetic block 71, pushing it to move inward synchronously. The first magnetic block 22 and the limiting block 101 never contact each other. During its horizontal outward displacement, the second magnetic block 71 will contact the limiting block 101 and be blocked by it. When the device to be installed 2 is about to slide into the inner side of the moving frame 1, the first magnetic block 22 will contact the second magnetic block 71 and push the second magnetic block 71 inward together. Thus, the overall sliding of the rack 7 can drive the first gear 6 to rotate. When the second magnetic block 71 is in place, the locking pin 33 passes through the follower insertion box 4 and inserts into the buckle 21 to lock it in place. Thus, the second magnetic block 71 is... Maintain this position during the subsequent use period; when the latch 33 retracts and locks the latch 21, the device 2 to be installed can be pushed towards the opening of the moving frame 1 to disengage it from the moving frame 1. During this process, since the first magnetic block 22 and the second magnetic block 71 are magnets that attract each other, the latch 21 will pull the second magnetic block 71 to move synchronously, so the rack 7 will also move along with it, thus driving the first gear 6 to rotate in the opposite direction. When the second magnetic block 71 moves to a certain position, the first gear 6 rotates to the position, and the second magnetic block 71 is also in contact with the limiting block 101 and blocked by the limiting block 101. Thus, the second magnetic block 71 disengages from the first magnetic block 22 to prevent the second magnetic block 71 from being pulled out or the first gear 6 from rotating too much.

[0039] The air cylinder 8 is installed in the mounting box on the rear side of the mobile frame 1. The mounting box is opened and closed using a sliding cover. The sliding cover is one of many covering methods. Those skilled in the art can also use other convenient disassembly covering methods to prevent the air cylinder 8 from being directly exposed to the external environment and easily damaged. When the staff disassembles the electrical equipment, they only need to open the covering cover before operating the air cylinder 8 to inject air, which is convenient and quick.

[0040] In a preferred embodiment, telescopic wheels 11 are fixedly installed on both outer sides of the movable frame 1. After the device to be installed 2 is installed on the movable frame 1, the telescopic wheels 11 can be extended to push the device to be installed 2, thus the mounting base becomes a movable mounting base.

[0041] Working principle and usage process: When the device to be installed 2 is about to slide into the inner side of the moving frame 1, the first magnetic block 22 will contact the second magnetic block 71 and push the second magnetic block 71 together. Then the overall sliding of the rack 7 can drive the first gear 6 to rotate until its circular through hole is aligned with the locking pin 33. The locking pin 33 is pushed by the first spring 32 and passes through the stop ball 41 to lock the buckle 21 of the device to be installed. The four locking pins 33 simultaneously lock the four buckles 21 of the device to be installed, which has a good limiting effect in both the horizontal and vertical directions of the device to be installed. During this process, the rack 7 drives the sealing plug 5 and the first gear 6 to rotate. The sealing plug 5 engages and moves upward to block the exhaust column of the elastic pin 3. The first gear 6 rotates to align its circular through hole with the locking pin 33 so that the locking pin 33 can pass through.

[0042] By continuously stepping on or pushing the piston rod 81, air can be continuously injected into each elastic pin 3. Since the inside of the elastic pin 3 is sealed, the air pressure is used to push the piston 31 and the locking pin 33 backward, causing the locking pin 33 to disengage from the buckle 21 of the device to be installed 2. Then, the device to be installed 2 can be moved horizontally to slide the moving frame 1 to achieve disassembly. If it is a relatively heavy electrical device, a trolley or forklift can be used for pushing and pulling.

[0043] When the device to be installed 2 is slid and pushed to the outside of the mobile frame 1, since the first magnetic block 22 and the second magnetic block 71 are magnetically connected, the second magnetic block 71 will be pulled to move accordingly. When the rack 7 moves, it will drive the first gear 6 and the sealing plug 5 to rotate in opposite directions. The sealing plug 5 rotates downward and gradually disengages from the exhaust column, eventually releasing pressure for the elastic pin 3. The first gear 6 drives the go-stop ball 41 to rotate, which immediately causes the circular through hole of the go-stop ball 41 and the locking pin 33 to be misaligned, which has the function of resisting the locking pin 33 and preventing it from going out.

[0044] In one embodiment, an electrical device is provided, including a device body mounted on the aforementioned mounting base. With the device mounted on the mounting base, the operator only needs to continuously step on or push the piston rod to continuously inject air into each elastic pin, thereby using air pressure to push the piston and locking pins backward, causing the locking pins to disengage from the electrical device's latch. Then, the electrical device can be moved horizontally to slide and push the movable frame, achieving unlocking. The disassembly process is convenient, the performance is stable, and there is no need for operators to use tools to disassemble the bolts, greatly improving disassembly efficiency.

[0045] In one embodiment, a power electronics test platform is also provided, including multiple mounting bases as described above. The power electronics test platform with the aforementioned mounting bases facilitates the installation and removal of multiple test modules and equipment.

[0046] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0047] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A mounting base characterized by: It includes a movable frame (1) and four buckles (21). Four elastic pins (3) are symmetrically installed on the inner side of the movable frame (1). The ends of the elastic pins (3) are fixedly connected to follower boxes (4). The four buckles (21) are symmetrically fixedly installed on the outside of the equipment to be installed (2). The elastic pin (3) includes an internal piston (31), a first spring (32) and a locking pin (33). The first spring (32) elastically supports the locking pin (33) as it passes through the follower box (4) and engages with the buckle (21) to lock the device (2) to be installed. An air cylinder (8) is provided on the rear side of the mobile frame (1). The air cylinder (8) includes a piston rod (81) and a second spring (82) elastically supported at the bottom of the piston rod (81). The bottom outlet of the air cylinder (8) is fixedly connected to a one-way four-way pipe (9). The one-way four-way pipe (9) diverts the airflow to the inner cavity of four elastic pins (3) through the air guide pipe. A one-way valve is provided on the piston of the piston rod (81). The one-way valve is closed when the inner cavity of the air cylinder (8) is under positive pressure and open when the inner cavity is under negative pressure. A one-way valve is provided at the open end of the one-way four-way pipe (9) connected to the air cylinder (8). The one-way valve of the one-way four-way pipe (9) is open when the inner cavity of the air cylinder (8) is under positive pressure and closed when the inner cavity is under negative pressure. The follower box (4) includes a go-stop ball (41) movably sleeved inside. The bottom of the go-stop ball (41) is connected to a first gear (6) located outside the follower box (4) via a rotating shaft. A rack (7) is movably mounted on the inner side plate of the moving frame (1). The rack (7) meshes with the first gear (6). The stop ball (41) has a through circular hole and the inner diameter of the circular hole is matched with the diameter of the locking pin (33). When the locking pin (33) is inserted into the buckle (21), it passes through the circular hole of the stop ball (41). The end of the locking pin (33) is blocked by the stop ball (41) after the stop ball (41) has not passed through it and has rotated 90 degrees. The elastic pin (3) is provided with a threaded exhaust column, and the inner side of the threaded exhaust column is connected with a sealing plug (5). The gear of the sealing plug (5) meshes with the first gear (6). An exhaust port is opened on the side of the threaded exhaust column. In the initial state, the sealing plug (5) blocks the exhaust port. The inner side of the buckle (21) is a rounded rectangular structure. After the latch (33) is inserted into the inner side of the buckle (21), it abuts against the rounded corner of the inner side of the buckle (21) to achieve fixed positioning of the electrical equipment (2) in all directions.

2. The mounting base according to claim 1, characterized in that: The rack (7) is provided with a second magnetic block (71) on its outside, and the electrical equipment (2) is provided with a first magnetic block (22) on its outside. The first magnetic block (22) and the second magnetic block (71) are permanent magnets that attract each other. The inner side plate of the moving frame (1) is also provided with a limit block (101) to block the second magnetic block (71).

3. The mounting base according to claim 2, characterized in that: The width of the first magnetic block (22) is less than or equal to the thickness of the rack (7), and the first magnetic block (22) will push the second magnetic block (71) to move inward synchronously during the horizontal inward displacement process. The first magnetic block (22) and the limiting block (101) never contact each other. The second magnetic block (71) will contact the limiting block (101) and be blocked by it during the horizontal outward displacement process.

4. The mounting base according to claim 1, characterized in that: The air cylinder (8) is installed in the mounting box on the rear side of the mobile frame (1), and the mounting box is opened and closed by a sliding cover.

5. The mounting base according to any one of claims 1 to 4, characterized in that: The mobile frame (1) has telescopic wheels (11) fixedly installed on both outer sides.

6. An electrical device comprising a device body, characterised in that: The device body is mounted on the mounting base as described in any one of claims 1-5.

7. A power electronics testing platform, characterized in that: It includes the mounting base as described in any one of claims 1-5.

Images