Locking structure device of plug-in unit

Abstract

The invention relates to the technical field of electrical elements, in particular to a plug-in unit locking structure device which comprises a supporting mechanism, the two ends of the supporting mechanism are slidably sleeved with butt joint devices, the side ends, away from the supporting mechanism, of the butt joint devices are fixedly provided with electric leads, each butt joint device comprises a plug and a push plate, and each push plate is fixedly installed at one end of the bottom of the corresponding plug. The supporting mechanism comprises transmission devices and a synchronous part, the transmission devices are fixedly installed at the two ends of the synchronous part, each transmission device comprises an electromagnetic valve, nozzles, a supporting cavity and a first spring, the electromagnetic valves are fixedly installed at the top of the rear end of the supporting cavity, and the nozzles are fixedly installed at the bottom ends of the electromagnetic valves at equal intervals; the first springs are fixedly installed at the top end and the bottom end of the interior of the supporting cavity, and the top end and the bottom end of each first spring are fixedly provided with a second clamping jaw and a first clamping jaw. And through the arrangement of the butt joint device and the supporting mechanism, synchronous two-way locking and guiding type alignment cleaning work of the insertion unit locking structure is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of electrical components, in particular to a plug-in unit locking structure device. Background Art

[0002] In electrical systems, plug-in units usually refer to electrical components or assemblies with plug-in functions. For example, the plug-in unit (plug-in box unit) in the bus duct system is a typical plug-in component. The bus duct system consists of multiple units, including linear units, inlet and outlet units, reversing units, expansion units, and plug-in units. Plug-in units allow electrical equipment to be easily plugged in or out of the bus duct system to achieve the distribution and transmission of electrical energy.

[0003] The locking structure is a mechanical design that uses a fixing device to tightly fix parts together to prevent them from loosening or falling off during use. This structure is widely used in many fields such as machinery, electronics, and automobiles.

[0004] At present, when the locking structure of the plug-in unit on the market is in use, since it adopts positioning bolts to directly align the limit, it takes a lot of time to assemble and disassemble the plug-in unit, which is not conducive to the rapid docking of the plug-in unit. At the same time, when the conductive sheet in the plug-in unit is not in use for a long time, dust will adhere to it, and the existing plug-in unit lacks components for cleaning its surface, which makes the existing plug-in unit locking structure unable to perform synchronous two-way locking and guided alignment cleaning. Therefore, a device is needed to improve the above-mentioned problems. Summary of the invention

[0005] In view of the problems in the prior art, the present invention provides a plug-in unit locking structure device.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a plug-in unit locking structure device, including a supporting mechanism, two ends of the supporting mechanism are slidably sleeved with docking devices, the side end of the docking device away from the supporting mechanism is fixedly installed with a conductive wire, the docking device includes a plug and a push plate, the push plate is fixedly installed at one end of the bottom of the plug, the supporting mechanism includes a transmission device and a synchronization component, the transmission device is fixedly installed at both ends of the synchronization component, the transmission device includes an electromagnetic valve, a nozzle, a supporting cavity and a first spring, the electromagnetic valve is fixedly installed on the rear end top of the supporting cavity, the nozzle is equidistantly fixedly installed at the bottom end of the electromagnetic valve, the first spring is fixedly installed on the internal top and bottom ends of the supporting cavity, the top and bottom ends of the first spring are fixedly installed with a second claw and a first claw, the front end of the supporting cavity is symmetrically fixedly installed with an extension rod, the rear end of the first claw is fixedly installed with a second rack, the rear end of the second claw is fixedly installed with a first rack, and a synchronization rod is fixedly installed between the two first racks.

[0007] Specifically, the synchronization component includes a displacement device and a connection device, and the displacement device is rotatably mounted on both ends of the connection device.

[0008] Specifically, the displacement device includes a supporting top plate, a second spring, a connecting base plate and a winding wheel, the second spring is fixedly mounted on the bottom front end of the supporting top plate, the connecting base plate is fixedly mounted on the bottom end of the second spring, a supporting shaft is rotatably mounted on the front end of the connecting base plate, a nylon brush is fixedly mounted on the outer ring of the supporting shaft, a third gear is fixedly mounted on the front end of the supporting shaft, a displacement cross plate is rotatably mounted on the outer ring of the supporting shaft, a second gear is symmetrically and rotatably mounted on the front end of the displacement cross plate, a connecting rope is fixedly mounted between the displacement cross plate and the winding wheel, and a first gear is fixedly mounted on the side end center of the winding wheel;

[0009] When the first gear rotates, the displacement horizontal plate can be pulled downward by the connecting rope, so that the nylon brush can contact the conductive sheet.

[0010] Specifically, the connecting device includes a bus duct, a fourth gear, a vertical rod and a conductive sheet, the conductive sheet is symmetrically fixedly installed at both ends of the bus duct, the vertical rod is symmetrically fixedly installed at both ends of the top of the bus duct, the fourth gear is rotatably installed on both sides of the bus duct close to the conductive sheet, the bottom ends of the bus duct are symmetrically fixedly installed with lower edge brackets, a photoelectric sensor is fixedly installed inside the lower edge bracket, a fourth rack is slidably inserted on the inner side of the lower edge bracket close to the conductive sheet, an alignment convex frame is fixedly installed on the top of the fourth rack away from the conductive sheet, and a third rack is installed on both sides of the bus duct close to the conductive sheet;

[0011] When the fourth rack is displaced, it can pass through the bottom end of the lower edge bracket, thereby driving the first gear to rotate.

[0012] Specifically, the support cavity is fixedly mounted on both ends of the bus duct close to the fourth gear, the plug is slidably sleeved on the extension rod, the synchronization rod is slidably sleeved on the vertical rod, and the first rack and the second rack are respectively meshed with the fourth gear.

[0013] Beneficial effects of the present invention:

[0014] First, the present invention can ensure that the plug is accurately docked with the conductive sheet when the plug slides on the extension rod, so that the plug can be prevented from being skewed. At the same time, when the plug is docked with the second claw and the first claw, the second claw and the first claw are pulled to reset by the first spring, so that the second claw and the first claw can position the plug buckle, thereby completing the work of bidirectional positioning of the plug.

[0015] Secondly, when the plug is displaced, the present invention can drive the fourth rack to pass through the bottom end of the first gear, so that the winding wheel can be driven to rotate, so that the connecting rope can pull the displacement horizontal plate to move downward. At the same time, when the displacement horizontal plate is displaced downward, the nylon brush can be driven to rotate along the surface of the conductive sheet, so that the dust attached to the surface of the conductive sheet can be swept away, and when the nylon brush passes through the conductive sheet, the nozzle can blow air to the surface of the conductive sheet, so that the dust on the conductive sheet can be blown away, thereby completing the guided cleaning of the conductive sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the docking device of the present invention from a front perspective;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the support mechanism of the present invention from a front perspective;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the transmission device of the present invention from the front perspective;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the transmission device of the present invention from a rear perspective;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the synchronization component in the present invention from a front perspective;

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the displacement device of the present invention from the front perspective;

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the connecting device of the present invention from the front perspective;

[0025] Fig. 9 This is a schematic diagram of the three-dimensional structure of the connecting device of the present invention from the bottom perspective;

[0026] Fig.10 It is a schematic diagram of the three-dimensional structure of the second embodiment of the bus duct in the present invention from the front perspective.

[0027] In the figure: 1-docking device, 2-support mechanism, 3-conductive wire, 4-plug, 5-push plate, 6-transmission device, 7-synchronizing component, 8-synchronizing rod, 9-first rack, 10-second rack, 11-support cavity, 12-first spring, 13-first claw, 14-extension rod, 15-second claw, 16-nozzle, 17-solenoid valve, 18-displacement device, 19-connecting device, 20-second spring, 21-support top plate, 22 -Connecting base plate, 23-nylon brush, 24-support shaft, 25-displacement horizontal plate, 26-winding wheel, 27-first gear, 28-connecting rope, 29-second gear, 30-third gear, 31-vertical rod, 32-conductive sheet, 33-third rack, 34-alignment cam, 35-fourth rack, 36-photoelectric sensor, 37-lower edge bracket, 38-fourth gear, 39-busbar, 40-screw, 41-support base rod, 42-clip plate. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0029] The present invention is further described below in conjunction with the accompanying drawings.

[0030] Example 1

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a plug-in unit locking structure device of the present invention comprises a support mechanism 2, two ends of the support mechanism 2 are slidably sleeved with a docking device 1, the side end of the docking device 1 away from the support mechanism 2 is fixedly installed with a conductive wire 3, the docking device 1 comprises a plug 4 and a push plate 5, the push plate 5 is fixedly installed at one end of the bottom of the plug 4, the support mechanism 2 comprises a transmission device 6 and a synchronization component 7, the transmission device 6 is fixedly installed at both ends of the synchronization component 7, the transmission device 6 comprises a solenoid valve 17, a nozzle 16, a support cavity 11 and a first spring 12, the solenoid valve 17 is fixedly mounted on the top of the rear end of the supporting cavity 11, the nozzle 16 is fixedly mounted at the bottom end of the solenoid valve 17 at an equidistant distance, the first spring 12 is fixedly mounted on the top and bottom ends of the inner part of the supporting cavity 11, the second claw 15 and the first claw 13 are fixedly mounted on the top and bottom ends of the first spring 12, the extension rod 14 is symmetrically fixedly mounted on the front end of the supporting cavity 11, the second rack 10 is fixedly mounted on the rear end of the first claw 13, the first rack 9 is fixedly mounted on the rear end of the second claw 15, and a synchronization rod 8 is fixedly mounted between the two first racks 9.

[0032] like Figure 6 The synchronization component 7 includes a displacement device 18 and a connecting device 19. The displacement device 18 is rotatably mounted at both ends of the connecting device 19 to support the displacement device 18 to work.

[0033] like Figure 7 The displacement device 18 includes a supporting top plate 21, a second spring 20, a connecting base plate 22 and a winding wheel 26. The second spring 20 is fixedly mounted on the bottom front end of the supporting top plate 21, the connecting base plate 22 is fixedly mounted on the bottom end of the second spring 20, a supporting shaft 24 is rotatably mounted on the front end of the connecting base plate 22, a nylon brush 23 is fixedly mounted on the outer ring of the supporting shaft 24, a third gear 30 is fixedly mounted on the front end of the supporting shaft 24, a displacement cross plate 25 is rotatably mounted on the outer ring of the supporting shaft 24, a second gear 29 is symmetrically rotatably mounted on the front end of the displacement cross plate 25, a connecting rope 28 is fixedly mounted between the displacement cross plate 25 and the winding wheel 26, and a first gear 27 is fixedly mounted on the side end center of the winding wheel 26;

[0034] When the first gear 27 rotates, the displacement horizontal plate 25 can be pulled downward by the connecting rope 28, so that the nylon brush 23 can contact the conductive sheet 32, and is rotatably installed between the connecting substrate 22 and the displacement horizontal plate 25 through the support shaft 24, so that when the connecting substrate 22 is reset, it can drive the displacement horizontal plate 25 to reset upward at the same time.

[0035] like Figure 8 and Fig. 9The connecting device 19 includes a bus trough 39, a fourth gear 38, a vertical rod 31 and a conductive sheet 32. The conductive sheet 32 ​​is symmetrically fixedly installed at both ends of the bus trough 39, and the vertical rod 31 is symmetrically fixedly installed at both ends of the top of the bus trough 39. The fourth gear 38 is rotatably installed on both sides of the bus trough 39 close to the conductive sheet 32. The bottom ends of the bus trough 39 are symmetrically fixedly installed with a lower bracket 37, and a photoelectric sensor 36 is fixedly installed inside the lower bracket 37. A fourth rack 35 is slidably inserted on the inner side of the lower bracket 37 close to the conductive sheet 32. An alignment convex frame 34 is fixedly installed on the top of the fourth rack 35 away from the conductive sheet 32. A third rack 33 is installed on both sides of the bus trough 39 close to the conductive sheet 32. Each time the photoelectric sensor 36 is triggered, the solenoid valve 17 can be started to run for a specified time, so that the nozzle 16 can be prevented from continuously spraying gas when the plug 4 is docked with the conductive sheet 32.

[0036] When the fourth rack 35 is displaced, it can pass through the bottom end of the lower bracket 37, thereby driving the first gear 27 to rotate.

[0037] The support cavity 11 is fixedly mounted on both ends of the bus duct 39 near the fourth gear 38, the plug 4 is slidably sleeved on the extension rod 14, the synchronization rod 8 is slidably sleeved on the vertical rod 31, the first rack 9 and the second rack 10 are respectively meshed with the fourth gear 38, the support top plate 21 is symmetrically fixedly mounted on the top of the bus duct 39 near the vertical rod 31, and the support top plate 21 is located between the conductive sheet 32 ​​and the vertical rod 31, the side end of the first gear 27 away from the winding wheel 26 is rotatably mounted on the inner walls of both sides of the lower edge bracket 37 near the alignment convex frame 34, the solenoid valve 17 is electrically connected to the photoelectric sensor 36, the second claw 15 is inclined at 45° away from the side end surface of the synchronization rod 8, the side end of the third gear 30 away from the second gear 29 is aligned with the third rack 33, and the second gear 29 Meshing with the third gear 30, keys are fixedly installed at both ends of the displacement cross plate 25, and slots are respectively provided at the inner ends of the bus trough 39 near the third rack 33 and the side ends of the lower edge bracket 37 near the alignment protrusion 34, the bottom end of the fourth rack 35 is fixedly installed with a key, and a slot is provided at the bottom end of the lower edge bracket 37, the top of the alignment protrusion 34 is flush with the top of the push plate 5, the opposite end of the nylon brush 23 is aligned with both sides of the conductive sheet 32, the nozzle 16 is respectively aligned with the side end of the conductive sheet 32 ​​at an angle of 15°, the plug 4 is 2 cm apart from both sides of the push plate 5 and the third rack 33, the bus trough 39 is symmetrically fixedly installed with extension frames at both ends near the top of the third rack 33, and the extension frames are provided with slots matching the keys at both ends of the displacement cross plate 25.

[0038] The working principle of embodiment 1 is as follows: when in use, the bus duct 39 is first installed in the designated working area, and then the plug 4 is moved to the extension rod 14. A round hole is provided inside the plug 4, and the round hole can be inserted into the extension rod 14, so that the plug 4 can move along the extension rod 14 to the inside of the bus duct 39. At the same time, the push plate 5 is flush with the alignment convex frame 34, so that when the plug 4 moves along the extension rod 14, the fourth rack 35 can be driven to move at the same time. When the fourth rack 35 moves, the first gear 27 can be driven to rotate, and when the first gear 27 rotates, the winding wheel 26 can be driven to rotate, so that the connecting rope 28 can be pulled to drive the displacement cross plate 25 to move downward, and the keys at both ends of the displacement cross plate 25 slide in the grooves inside the two ends of the bus duct 39. The displacement cross plate 25 can move downward in a straight line. Subsequently, when the displacement cross plate 25 moves downward, the third gear 30 can be driven to contact the third rack 33. Therefore, when the displacement cross plate 25 moves downward, the third gear 30 can be driven to move on the third rack 33, so that the third gear 30 can drive the nylon brush 23 to rotate. The nylon brush 23 is in contact with the side surface of the conductive sheet 32, so that the nylon brush 23 can remove dust attached to the conductive sheet 32 ​​when it rotates. In addition, as the displacement cross plate 25 moves downward, different positions on the conductive sheet 32 ​​can be cleaned. When the plug 4 moves and the lower edge bracket 37 is in contact with the side surface of the alignment protrusion 34, the displacement cross plate 25 can be driven to move completely to the bottom of the busbar 39, so that the plug 4 can be prevented from The head 4 interferes with the displacement cross plate 25. At the same time, the displacement cross plate 25 moves to align with the photoelectric sensor 36, so that the photoelectric sensor 36 can be triggered to start the electromagnetic valve 17. The top of the electromagnetic valve 17 is connected to the external air pipe, so that when the electromagnetic valve 17 is started, the gas can be ejected downward from the nozzle 16, and the nozzle 16 is tilted at 15° and aligned with the side end of the conductive sheet 32, so that when the nozzle 16 ejects gas, the remaining dust can be blown away. Subsequently, when the plug 4 continues to move, the fourth rack 35 can be driven to continue to pass the bottom end of the first gear 27, so that the displacement cross plate 25 can continue to move downward until the plug 4 is completely inserted into the conductive sheet 32. The displacement cross plate 25 can move downward to the limit position, and when the plug 4 moves along the extension rod 14 to the busbar When the groove 39 moves to the limit position, it can pass between the second claw 15 and the first claw 13. The side ends of the second claw 15 and the first claw 13 facing away from the synchronization rod 8 are inclined at 45 degrees, so that the smoothness of the plug 4 passing through the second claw 15 and the first claw 13 can be improved. When the plug 4 is completely inserted into the conductive sheet 32, the elasticity of the first spring 12 will drive the second claw 15 and the first claw 13 to reset, so that the second claw 15 and the first claw 13 can be buckled on the side end of the plug 4 away from the push plate 5, so that the plug 4 can be restricted and locked, thereby preventing the plug 4 from falling off the conductive sheet 32. When the plug 4 needs to be unlocked, the synchronization rod 8 can be pulled upward, thereby driving the first rack 9 to move downward along the surface of the fourth gear 38.When the fourth gear 38 is driven to rotate, the second rack 10 can be driven to move downward, so that the second claw 15 and the first claw 13 can be separated from the top and bottom ends of the plug 4 to complete the unlocking of the plug 4, so that the plug 4 can be easily removed from the conductive sheet 32. When the device is in use, when the plug 4 moves on the extension rod 14, the fourth rack 35 can be driven to pass the bottom end of the first gear 27, so that the connecting rope 28 can pull the displacement cross plate 25 to move downward, so that the nylon brush 23 can clean the surface of the conductive sheet 32. Then, when the plug 4 is completely moved to the conductive sheet, the nylon brush 23 can be used to clean the surface of the conductive sheet 32. When the plug 4 is fitted with the conductive sheet 32, the second claw 15 and the first claw 13 can limit and lock the plug 4, so that the plug 4 can be locked and installed while cleaning the conductive sheet 32. Moreover, through the setting of the second gear 29, when one third gear 30 rotates, it can drive another third gear 30 to rotate, so that the two nylon brushes 23 can rotate on both sides of the conductive sheet 32. At the same time, when the plug 4 is removed from the conductive sheet 32, the elasticity of the second spring 20 will drive the displacement cross plate 25 to quickly reset upward, so that the nylon brush 23 can clean the conductive sheet 32 ​​again.

[0039] Example 2

[0040] On the basis of Example 1, Fig.10 As shown, the bus duct 39 also includes a screw rod 40, a support base rod 41 and a clamping plate 42. The support base rod 41 is fixedly installed at the top two ends of the bus duct 39, the screw rod 40 is threadedly inserted into the inner side of the top end of the support base rod 41, and the clamping plate 42 is rotatably installed at the center of one end of the screw rod 40 away from the support base rod 41.

[0041] When implementing this embodiment, when the plug 4 is docked and installed with the conductive sheet 32, the card plate 42 can be placed horizontally, and then the screw 40 can be rotated to drive the card plate 42 to move to contact the synchronization rod 8. An alignment groove is provided inside the side end of the card plate 42 away from the screw 40, so that when the screw 40 is rotated to the extreme position, the alignment groove inside the card plate 42 can be driven to buckle on the synchronization rod 8, thereby preventing the synchronization rod 8 from moving up and down, preventing the synchronization rod 8 from moving again, releasing the second claw 15 and the first claw 13, and completing the locking of the synchronization rod 8.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plug-in unit locking structure device, comprising a support mechanism (2), wherein two ends of the support mechanism (2) are slidably sleeved with a docking device (1), and a conductive wire (3) is fixedly installed on the side end of the docking device (1) away from the support mechanism (2), characterized in that: the docking device (1) comprises a plug (4) and a push plate (5), and the push plate (5) is fixedly installed at one end of the bottom of the plug (4), the support mechanism (2) comprises a transmission device (6) and a synchronization component (7), and the transmission device (6) is fixedly installed at both ends of the synchronization component (7), and the transmission device (6) comprises a solenoid valve (17), a nozzle (16), a support cavity (11) and a first spring (12), The solenoid valve (17) is fixedly mounted on the top of the rear end of the supporting cavity (11); the nozzle (16) is fixedly mounted at an equidistant distance on the bottom end of the solenoid valve (17); the first spring (12) is fixedly mounted on the top and bottom ends of the inner part of the supporting cavity (11); the top and bottom ends of the first spring (12) are fixedly mounted with a second claw (15) and a first claw (13); the front end of the supporting cavity (11) is symmetrically fixedly mounted with an extension rod (14); the rear end of the first claw (13) is fixedly mounted with a second rack (10); the rear end of the second claw (15) is fixedly mounted with a first rack (9); and a synchronization rod (8) is fixedly mounted between the two first racks (9).

2. A plug-in unit locking structure device according to claim 1, characterized in that: The synchronous component (7) comprises a displacement device (18) and a connecting device (19), wherein the displacement device (18) is rotatably mounted at two ends of the connecting device (19).

3. A plug-in unit locking structure device according to claim 2, characterized in that: The displacement device (18) comprises a supporting top plate (21), a second spring (20), a connecting base plate (22) and a winding wheel (26); the second spring (20) is fixedly mounted on the bottom front end of the supporting top plate (21); the connecting base plate (22) is fixedly mounted on the bottom end of the second spring (20); and a supporting shaft (24) is rotatably mounted on the front end of the connecting base plate (22).

4. A plug-in unit locking structure device according to claim 3, characterized in that: A nylon brush (23) is fixedly mounted on the outer ring of the support shaft (24); a third gear (30) is fixedly mounted on the front end of the support shaft (24); a displacement cross plate (25) is rotatably mounted on the outer ring of the support shaft (24); a second gear (29) is symmetrically and rotatably mounted on the front end of the displacement cross plate (25); a connecting rope (28) is fixedly mounted between the displacement cross plate (25) and the winding wheel (26); and a first gear (27) is fixedly mounted at the side end center of the winding wheel (26).

5. A plug-in unit locking structure device according to claim 4, characterized in that: When the first gear (27) rotates, the displacement transverse plate (25) can be pulled downward by the connecting rope (28), so that the nylon brush (23) can contact the conductive sheet (32).

6. A plug-in unit locking structure device according to claim 5, characterized in that: The connecting device (19) comprises a bus duct (39), a fourth gear (38), a vertical rod (31) and a conductive sheet (32), wherein the conductive sheet (32) is symmetrically fixedly mounted at two ends of the bus duct (39).

7. A plug-in unit locking structure device according to claim 6, characterized in that: The vertical rod (31) is symmetrically fixedly installed at the two ends of the top of the bus duct (39), the fourth gear (38) is rotatably installed on both sides of the bus duct (39) close to the conductive sheet (32), and the lower edge brackets (37) are symmetrically fixedly installed at the two ends of the bottom of the bus duct (39).

8. A plug-in unit locking structure device according to claim 7, characterized in that: A photoelectric sensor (36) is fixedly installed inside the lower edge bracket (37); a fourth rack (35) is slidably inserted on the inner side of the lower edge bracket (37) close to the conductive sheet (32); an alignment convex frame (34) is fixedly installed on the top of the fourth rack (35) away from the conductive sheet (32); and a third rack (33) is installed on both sides of the bus duct (39) close to the conductive sheet (32).

9. A plug-in unit locking structure device according to claim 8, characterized in that: When the fourth rack (35) is displaced, it can pass through the bottom end of the lower edge bracket (37), thereby driving the first gear (27) to rotate.

10. A plug-in unit locking structure device according to claim 9, characterized in that: The support cavity (11) is fixedly mounted on both ends of the bus duct (39) close to the fourth gear (38), the plug (4) is slidably sleeved on the extension rod (14), the synchronization rod (8) is slidably sleeved on the vertical rod (31), and the first rack (9) and the second rack (10) are respectively meshed with the fourth gear (38).

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