Manual-electric integrated operating device for switchgear unit drawer

Abstract

The utility model relates to a kind of manual electric integrated operating device, including electric operating mechanism and the propulsion mechanism of access external distribution cabinet unit drawer;Electric operating mechanism includes drive motor and transmission shroud, drive motor has transmission shaft, transmission shroud is provided with first transmission gear, second transmission gear, first pivot sleeve and first pivot, first transmission gear is connected with transmission shaft, second transmission gear is engaged with first transmission gear, first pivot sleeve is set on first pivot, second transmission gear is connected with first pivot;Propulsion mechanism includes first fixed frame and the transmission screw rod of being installed in first fixed frame, the end of transmission screw rod forms the connecting end with convex strip, the one end of first pivot forms U-shaped groove, transmission screw rod is connected with transmission shaft by being clamped in U-shaped groove with convex strip.In the technical scheme of the utility model, electric operation can be used instead of manual shake in and shake out, to reduce manpower demand.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage power distribution equipment technology, and in particular to a manual and electric integrated operating device for a power distribution cabinet unit drawer. Background Technology

[0002] Traditional low-voltage switchgear unit drawers have only a simple design with a single operation mode of manual cranking in or manual pushing out. For example, Chinese patent document CN107221869A describes a pushing interlocking mechanism for a low-voltage switchgear. This mechanism mainly includes a pushing mechanism and an interlocking mechanism. The interlocking mechanism prevents operator misoperation, and the pushing mechanism realizes the pushing and pushing out of the low-voltage switchgear. This patent requires manual cranking of the handle, which is time-consuming and labor-intensive. Especially in frequent drawer switching or emergency situations (such as fault isolation), it will significantly delay the response time. In addition, when operating multi-drawer cabinets, repetitive labor can easily lead to operator fatigue. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, one objective of this utility model is to provide a manual and electric integrated operating device for a power distribution cabinet unit drawer, which can replace manual operation by electric operation, thereby reducing the need for manpower.

[0005] To achieve the above objectives, the present invention provides a manual and electric integrated operating device for a power distribution cabinet unit drawer, including an electric operating mechanism and a push mechanism connected to an external power distribution cabinet unit drawer.

[0006] The electric operating mechanism includes a drive motor and a transmission cover. The transmission cover is mounted on the drive motor, which has a drive shaft. The transmission cover contains a first transmission gear, a second transmission gear, a first rotating shaft sleeve, and a first rotating shaft. The first transmission gear is connected to the drive shaft, the second transmission gear meshes with the first transmission gear, the first rotating shaft sleeve is fitted on the first rotating shaft, and the second transmission gear is connected to the first rotating shaft.

[0007] The propulsion mechanism includes a first fixed frame and a transmission screw installed in the first fixed frame. One end of the transmission screw extends out of one side of the first fixed frame to form a connecting end with a protrusion, and the other end of the transmission screw extends out of the other side of the first fixed frame to form a rotating screw. A second operating hole is provided at the outer end of the rotating screw. The second operating hole is used to insert a rotating tool that drives the rotating screw to rotate. One end of the first rotating shaft has a U-shaped groove. The transmission screw is engaged in the U-shaped groove and connected to the transmission shaft through the protrusion on the connecting end.

[0008] In the above technical solution, preferably, a square hole is formed at the center of the first transmission gear and the second transmission gear, and at least part of the first rotating shaft and the transmission shaft are square shafts adapted to the square hole.

[0009] In the above technical solution, preferably, a second rotating shaft sleeve, a first flange, a second flange, and a compression spring are also provided inside the transmission cover and are all sleeved on the transmission shaft. The second rotating shaft sleeve is located between the second flange and the first transmission gear, and the compression spring is sleeved on the second rotating shaft sleeve. A retaining ring is formed on one side of the first transmission gear, and at least one retaining hole is formed on the retaining ring. A retaining block that matches the retaining hole is formed on the second flange.

[0010] In the above technical solution, preferably, a plurality of ball grooves are formed on the first flange and the second flange, and the first flange and the second flange are connected by rolling balls in the ball grooves.

[0011] In the above technical solution, preferably, one of the first flange and the second flange is formed with a driving block, and the other is formed with an arc-shaped groove, the depth of which gradually decreases along the direction of movement.

[0012] In any of the above technical solutions, preferably, it further includes a circuit breaker operation mechanism, which includes a second fixed frame, a connecting piece, a connecting rod, and a sliding piece. The connecting piece is provided with an operation hole for the circuit breaker operation rod to pass through. The operation hole is square. The connecting piece can rotate with the circuit breaker operation rod by connecting the connecting piece sleeve. The second fixed frame includes a plate-shaped part and a partition part opposite to the plate-shaped part. The plate-shaped part and the partition part form a receiving cavity, and the rotating screw is located in the receiving cavity.

[0013] One end of the connecting rod is hinged to the connecting plate, so that the connecting rod can move up or down as the connecting plate rotates. A transmission block is provided on the connecting rod, a first guide hole is provided on the plate-shaped part, and a second guide hole is provided on the sliding plate. The extension paths of the first guide hole and the second guide hole are at least partially intersecting. The transmission block is inserted into the first guide hole and the second guide hole, and as the transmission block moves in the first guide hole, it can drive the sliding plate to move relative to the plate-shaped part.

[0014] In the above technical solution, preferably, it also includes an interlocking mechanism, which is located in the accommodating cavity and has teeth on the rotating screw;

[0015] The interlocking mechanism includes a fixed shaft, a locking disc, and a locking shaft. The rotating screw drives the locking shaft to rotate through a gear transmission assembly that meshes with the pry teeth. The locking disc is fixedly installed on the fixed shaft. At least one notch is provided on the locking disc. A locking block is provided on the plate-shaped part. A trigger end is formed on the sliding plate at the position corresponding to the locking block. When the sliding plate moves relative to the plate-shaped part, the trigger end controls the locking block to engage in the notch.

[0016] In the above technical solution, preferably, there are two notches, which are distributed at intervals in the circumferential direction of the locking plate, and the two notches are aligned with the locking block when the propulsion mechanism adjusts the low-voltage switchgear to the connection state and the test state, respectively.

[0017] In the above technical solution, preferably, a micro-limit switch is provided on the first fixed frame, and a protruding rivet is provided on the second fixed frame. One end of the protruding rivet is movably connected to the micro-limit switch, and the other end of the protruding rivet is connected to the gear transmission assembly. The gear transmission assembly pushes the protruding rivet forward, thereby activating the moving contact of the micro-limit switch.

[0018] In the above technical solution, preferably, the gear transmission assembly includes a first driven gear, a second driven gear and a third driven gear. The first driven gear and the second driven gear are fixed on the locking shaft, the third driven gear is fixed on the fixed shaft and meshes with the second driven gear, and the first driven gear meshes with the shift teeth.

[0019] Compared with the prior art, the advantages of the manual and electric integrated operation device for the power distribution cabinet unit drawer provided by this utility model are as follows:

[0020] 1. Reduced operation time: Electric operation can complete the drawer's rocking in / out within 5 to 10 seconds, making it especially suitable for places with frequent maintenance (such as data centers and production lines);

[0021] 2. Reduced labor costs: No manual labor is required, and the energy consumption per operation is less than 0.01kWh (calculated based on a 100W motor), which can reduce labor input in the long run;

[0022] 3. The main circuit is automatically cut off before the drawer is slid out (compliant with IEC 61439 safety standards), completely eliminating the risk of live operation;

[0023] 4. Mechanical anti-misoperation: The drawer automatically locks when not fully inserted to prevent accidental triggering; the emergency stop button can stop the machine in 0.5 seconds.

[0024] 5. Isolation from electric arc hazards: The electric uniform speed movement avoids the electric arc generated by manual rapid pulling, reducing the probability of short circuits;

[0025] 6. The micro-limit switch ensures that the drawer position error is ≤1mm, avoiding overheating of the insert due to poor contact caused by incomplete insertion. Attached Figure Description

[0026] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0027] Figure 1A structural diagram of the manual-electric integrated operating device according to an embodiment of the present invention is shown;

[0028] Figure 2 The exploded view of the manual-electric integrated operating device according to an embodiment of the present invention is shown. Figure 1 ;

[0029] Figure 3 The exploded view of the manual-electric integrated operating device according to an embodiment of the present invention is shown. Figure 2 ;

[0030] Figure 4 A structural diagram of the second flange according to another embodiment of the present invention is shown;

[0031] Figure 5 A structural diagram of the first flange according to another embodiment of the present invention is shown;

[0032] Figure 6 This diagram illustrates the mating structure of a micro-motion limit switch and a raised rivet according to another embodiment of the present invention.

[0033] Figure 7 This is a structural schematic diagram of an embodiment of the present utility model;

[0034] Figure 8 This is a schematic diagram of the propulsion mechanism according to an embodiment of the present invention;

[0035] Figure 9 This is a schematic diagram of the gear set of the propulsion mechanism according to an embodiment of the present invention;

[0036] Figure 10 This is a schematic diagram of the locking structure of the interlocking mechanism according to an embodiment of this utility model;

[0037] Figure 11 This is a schematic diagram of the plate-shaped portion of the mounting bracket according to an embodiment of the present invention;

[0038] Figure 12 This is a schematic diagram of the third driven gear in an embodiment of the present invention.

[0039] in, Figures 1 to 12 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0040] 100. Drive motor; 101. Transmission cover; 102. Transmission shaft; 103. First transmission gear; 104. Second transmission gear; 105. First rotating shaft sleeve; 106. First rotating shaft; 107. First fixing bracket; 108. Transmission screw; 109. Raised bar; 110. U-shaped groove; 111. Second rotating shaft sleeve; 112. First flange; 113. Second flange; 114. Compression spring; 115. Snap ring; 116. Bayonet; 117. Locking block; 118. Bead groove; 119. Drive block; 120. Arc groove; 121. Micro-motion limit switch; 122. Raised dot rivet 1. Nail; 2. Switch trigger block; 3. Second fixing bracket; 4. Plate-shaped part; 5. Straight groove; 6. First guide hole; 7. Partition part; 8. Connecting plate; 9. Switch trigger block; 10. Second fixing bracket; 11. Plate-shaped part; 12. First guide hole; 13. Partition plate; 2. Connecting plate; 21. First operating hole; 22. Connecting plate sleeve; 3. Connecting rod; 4. Sliding plate; 41. Blocking part; 42. Locking block; 43. Second guide hole; 44. 45. Guide groove; 5. Locking disc; 51. Notch; 6. Transmission block; 7. Rotating screw; 71. Pulley; 72. Second operating hole; 8. Locking shaft; 81. First driven gear; 82. Second driven gear; 9a. Fixed shaft; 91. Third driven gear. Detailed Implementation

[0041] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0042] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0043] like Figures 1 to 12 As shown, a manual and electric integrated operating device for a power distribution cabinet unit drawer according to an embodiment of the present utility model includes an electric operating mechanism and a push mechanism connected to an external power distribution cabinet unit drawer.

[0044] The electric operating mechanism includes a drive motor 100 and a transmission cover 101. The transmission cover 101 is mounted on the drive motor 100. The drive motor 100 has a transmission shaft 102. The transmission cover 101 is provided with a first transmission gear 103, a second transmission gear 104, a first rotating shaft sleeve 105, and a first rotating shaft 106. The first transmission gear 103 is connected to the transmission shaft 102, the second transmission gear 104 meshes with the first transmission gear 103, the first rotating shaft sleeve 105 is sleeved on the first rotating shaft 106, and the second transmission gear 104 is connected to the first rotating shaft 106.

[0045] The propulsion mechanism includes a first fixed frame 107 and a transmission screw 108 installed in the first fixed frame 107. One end of the transmission screw 108 extends out of one side of the first fixed frame 107 to form a connecting end with a protrusion 109. The other end of the transmission screw 108 extends out of the other side of the first fixed frame 107 to form a rotating screw 7. A second operating hole 72 is provided at the outer end of the rotating screw 7. The second operating hole 72 is used to insert a rotating tool that drives the rotating screw 7 to rotate. One end of the first rotating shaft 106 forms a U-shaped groove 110. The transmission screw 108 is engaged in the U-shaped groove 110 and connected to the transmission shaft 102 through the protrusion 109 on the connecting end.

[0046] In this embodiment, the drive motor 100 drives the first flange 112 to rotate via the drive shaft 102 on it. The second drive gear 104, which meshes with the first drive gear 103, rotates accordingly, thereby driving the first rotating shaft 106, which is fixedly installed on the second drive gear 104, to rotate. Since the protrusion 109 on the connecting end of the drive screw 108 in the propulsion mechanism is engaged with the U-shaped groove 110 on the first rotating shaft 106, the drive screw 108 in the propulsion mechanism can be driven to drive the low-voltage switchgear into a connected or test state.

[0047] It should be noted that the drive motor 100 can be a conventional motor currently available on the market. The internal structure of the drive motor is not the structure that this utility model claims to protect, so its structure and working principle will not be described in detail here.

[0048] In one embodiment, preferably, a square hole (not shown) is formed at the center of the first transmission gear 103 and the second transmission gear 104, and at least part of the first rotating shaft 106 and the transmission shaft 102 are square shafts adapted to the square hole.

[0049] In this embodiment, the square hole on the first transmission gear 103 can drive the first transmission gear 103 to rotate when the transmission shaft 102 on the motor rotates, and the square hole on the second transmission gear 104 can drive the first rotating shaft 106 to rotate synchronously.

[0050] like Figure 2 and Figure 3 As shown, in another embodiment, preferably, a second rotating shaft sleeve 111, a first flange 112, a second flange 113, and a compression spring 114 are also provided inside the transmission cover 101, all of which are sleeved on the transmission shaft 102. The second rotating shaft sleeve 111 is located between the second flange 113 and the first transmission gear 103, and the compression spring 114 is sleeved on the second rotating shaft sleeve 111. A retaining ring 115 is formed on one side of the first transmission gear 103, and at least one retaining groove 116 is formed on the retaining ring 115. A retaining block 117 adapted to the retaining groove 116 is formed on the second flange 113.

[0051] In this embodiment, the drive motor drives the second flange 113 to rotate via the transmission shaft. Since there is a steel ball (not shown) between the second flange 113 and the first flange 112, the rotation of the second flange 113 will drive the steel ball to rotate, thereby causing the first flange 112 to rotate forward. This causes the locking block 117 on one side of the first flange 112 to engage with the retaining ring 115 with a locking slot 116 on one side of the first transmission gear 103, driving the first transmission gear 103 to rotate. The first transmission gear 103 drives the second transmission gear 104 to rotate, thereby driving the first rotating shaft 106 to rotate. The first rotating shaft 106 is connected to the transmission screw 108 of the manual operation mechanism, thereby realizing the drawer's entry and exit. The compression spring 114 is located between the first transmission gear 103 and the first flange 112. When the first flange 112 rotates forward, it will compress the compression spring 114. When the motor is powered off, the second flange 113 loses power. Due to its elasticity, the compression spring 114 separates the first transmission gear 103 and the first flange 112, and the first transmission gear 103 stops rotating.

[0052] like Figure 2 and Figure 3 As shown, in one embodiment, preferably, a plurality of ball grooves 118 are formed on the first flange 112 and the second flange 113, and the first flange 112 and the second flange 113 are connected by rolling balls in the ball grooves 118.

[0053] In this embodiment, the compression spring 114 is located between the first transmission gear 103 and the first flange 112. When the first flange 112 rotates forward, it will compress the compression spring 114. When the motor is powered off, the second flange 113 loses power. Due to its own elasticity and torque, the ball of the compression spring 114 returns to the ball groove 118 to separate the first transmission gear 103 and the first flange 112, so that the first transmission gear 103 stops rotating.

[0054] like Figure 4 and Figure 5 As shown, in another embodiment, preferably, one of the first flange 112 and the second flange 113 is formed with a drive block 119, and the other is formed with an arc groove 120, the depth of which gradually decreases along the direction of movement.

[0055] In this embodiment, the compression spring 114 is located between the first transmission gear 103 and the first flange 112. When the first flange 112 rotates forward, it will compress the compression spring 114. When the motor is powered off, the second flange 113 loses power. Due to its own elasticity and torque, the relative position of the drive block 119 and the arc groove 120 of the compression spring 114 returns to its initial state to separate the first transmission gear 103 and the first flange 112, so that the first transmission gear 103 stops rotating.

[0056] like Figures 7 to 11As shown, in any of the above embodiments, preferably, it further includes a circuit breaker operation mechanism. The circuit breaker operation mechanism includes a second fixed frame 1, a connecting piece 2, a connecting rod 3, and a sliding piece 4. The connecting piece 2 is provided with a first operating hole 21 for the circuit breaker operation rod to pass through. The first operating hole 21 is square. The connecting piece 2 can be rotated with the circuit breaker operation rod by means of the connecting piece sleeve 22. The second fixed frame 1 includes a plate-shaped part 1a and a partition part 13 disposed opposite to the plate-shaped part 1a. The plate-shaped part 1a and the partition part 13 form a receiving cavity. The rotating screw 7 is located in the receiving cavity.

[0057] One end of the connecting rod 3 is hinged to the connecting piece 2, so that the connecting rod 3 can move up or down as the connecting piece 2 rotates. A transmission block 6 is provided on the connecting rod 3. A first guide hole 12 is provided on the plate-shaped part 1a, and a second guide hole 43 is provided on the sliding piece 4. The extension paths of the first guide hole 12 and the second guide hole 43 are at least partially intersecting. The transmission block 6 is inserted into the first guide hole 12 and the second guide hole 43, and as the transmission block 6 moves in the first guide hole 12, it can drive the sliding piece 4 to move relative to the plate-shaped part 1a. In addition, in this embodiment, two guide grooves 44 and 45 are opened on the sliding piece 4. Rivets or bolts are respectively provided on the second fixing frame 1, passing through the guide grooves 44 and 45, and the guide grooves 44 and 45 are staggered to support the sliding piece 4 and enhance the stability of the movement of the sliding piece 4.

[0058] like Figures 7 to 11 As shown, in the above embodiment, preferably, it also includes a chain mechanism, which is located in the accommodating cavity and has a prying tooth 71 on the rotating screw 7;

[0059] The interlocking mechanism includes a fixed shaft 9a, a locking disc 5, and a locking shaft 8. The rotating screw 7 drives the locking shaft 8 to rotate through a gear transmission assembly that meshes with the prying teeth 71. The locking disc 5 is fixedly installed on the fixed shaft 9a. At least one notch 51 is provided on the locking disc 5. A locking block 42 is provided on the plate-shaped part 1a. A trigger end is formed on the sliding piece 4 at the position corresponding to the locking block 42. When the sliding piece 4 moves relative to the plate-shaped part 1a, the trigger end controls the locking block 42 to engage in the notch 51.

[0060] like Figure 9 As shown, in the above embodiment, preferably, there are two notches 51, which are distributed at intervals in the circumferential direction of the locking disk 5, and the two notches 51 are aligned with the locking block 42 when the push mechanism adjusts the low-voltage switchgear to the connection state and the test state, respectively.

[0061] like Figure 6 and Figure 12As shown, in the above embodiment, preferably, a micro-motion limit switch 121 is provided on the first fixed frame 107, and a protruding rivet 122 is provided on the second fixed frame 1. One end of the protruding rivet 122 is movably connected to the micro-motion limit switch 121, and the other end of the protruding rivet 122 is connected to the gear transmission assembly. A switch trigger block 123 is formed on the gear transmission assembly. The height of the switch trigger block 123 gradually increases along its rotation direction. The protruding rivet 122 abuts against the lowest end of the switch trigger block 123. During the rotation of the gear transmission assembly, as the height of the switch trigger block 123 gradually increases along the rotation direction, it can push the protruding rivet 122 to move towards the moving contact of the micro-motion limit switch 121, thereby triggering the moving contact of the micro-motion limit switch 121.

[0062] like Figure 9 As shown, in the above embodiment, preferably, the gear transmission assembly includes a first driven gear 81, a second driven gear 82 and a third driven gear 91. The first driven gear 81 and the second driven gear 82 are fixed on the locking shaft 8, the third driven gear 91 is fixed on the fixed shaft 9a and meshes with the second driven gear 82, and the first driven gear 81 meshes with the shift tooth 71.

[0063] By adopting the above scheme, when the rotating screw 7 puts the low-voltage switchgear in the connected or test state, the locking disc 5 also rotates through gear transmission until the notch 51 on the locking disc 5 is in the opposite position to the locking block 42. When the opening / closing operating lever is rotated to the closing position, the connecting piece 2 drives the connecting rod 3 upward, and the transmission block 6 drives the sliding piece 4 to slide. The locking block 42 on the sliding piece 4 also slides and engages with the notch 51 to complete the locking. At this time, the rotating screw 7 cannot be rotated. In addition, while the sliding piece 4 is sliding, the blocking part on the sliding piece 4 can block the second operating hole 72 of the rotating screw 7, so the propulsion mechanism cannot be operated. Only when the opening / closing operating lever is rotated to the opening position, the connecting rod 3 descends and pushes the sliding piece 4 to slide in the opposite direction. Then the locking block 42 separates from the locking notch 51, unlocking the propulsion mechanism. The blocking part 41 also separates from the second operating hole 72 of the rotating screw 7, and the rotating screw 7 can be operated at this time. It is evident that this utility model, in conjunction with the propulsion mechanism, can achieve dual protection, effectively preventing misoperation by either staff or non-staff.

[0064] like Figure 11As shown, considering the need for better interlocking, the sliding piece 4 is located on the outside of the receiving cavity (outside the plate-shaped portion 1a, away from the partition plate 13). The locking block 42 is a folded portion on the sliding piece 4. The locking block 42 passes through the through groove 11 on the second fixing frame 1 and engages with the locking disc 5 inside the receiving cavity for locking. The blocking portion on the sliding piece 4 provides a safety shield for the second operating hole 72 of the rotating screw 7 on the outside of the receiving cavity, while the locking block 42 locks the locking disc 5 inside the receiving cavity of the bracket, facilitating operation.

[0065] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be 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 utility model according to the specific circumstances.

[0066] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", 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 utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0067] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0068] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A manual / electric integrated operating device for a power distribution cabinet unit drawer, characterized in that, Includes an electric operating mechanism and a push mechanism that connects to the drawer of the external power distribution cabinet unit; The electric operating mechanism includes a drive motor (100) and a transmission cover (101). The transmission cover (101) is mounted on the drive motor (100). The drive motor (100) has a transmission shaft (102). The transmission cover (101) is provided with a first transmission gear (103), a second transmission gear (104), a first rotating shaft sleeve (105), and a first rotating shaft (106). The first transmission gear (103) is connected to the transmission shaft (102). The second transmission gear (104) meshes with the first transmission gear (103). The first rotating shaft sleeve (105) is sleeved on the first rotating shaft (106). The second transmission gear (104) is connected to the first rotating shaft (106). The propulsion mechanism includes a first fixed frame (107) and a transmission screw (108) installed in the first fixed frame (107). One end of the transmission screw (108) extends out of one side of the first fixed frame (107) to form a connecting end with a protrusion (109). The other end of the transmission screw (108) extends out of the other side of the first fixed frame (107) to form a rotating screw (7). A second operating hole (72) is provided at one end of the rotating screw (7) near the outside. The second operating hole is used to insert a rotating tool that drives the rotating screw (7) to rotate. One end of the first rotating shaft (106) forms a U-shaped groove (110). The transmission screw (108) is engaged in the U-shaped groove (110) through the protrusion (109) on the connecting end and connected to the transmission shaft (102).

2. The manual / electric integrated operating device for the drawer of the distribution cabinet unit according to claim 1, characterized in that: The first transmission gear (103) and the second transmission gear (104) have square holes formed at their centers, and at least part of the first rotating shaft (106) and the transmission shaft (102) are square shafts adapted to the square holes.

3. The manual / electric integrated operating device for the drawer of the distribution cabinet unit according to claim 1, characterized in that: The transmission cover (101) is also provided with a second rotating shaft sleeve (111), a first flange (112), a second flange (113), and a compression spring (114) all sleeved on the transmission shaft (102). The second rotating shaft sleeve (111) is located between the second flange (113) and the first transmission gear (103), and the compression spring (114) is sleeved on the second rotating shaft sleeve (111). A retaining ring (115) is formed on one side of the first transmission gear (103), and at least one retaining hole (116) is formed on the retaining ring (115). A retaining block (117) adapted to the retaining hole (116) is formed on the second flange (113).

4. The manual / electric integrated operating device for the drawer of the distribution cabinet unit according to claim 3, characterized in that: The first flange (112) and the second flange (113) have a plurality of ball grooves (118) formed thereon, and the first flange (112) and the second flange (113) are connected by rolling balls in the ball grooves (118).

5. The manual / electric integrated operating device for the drawer of the distribution cabinet unit according to claim 3, characterized in that: One of the first flange (112) and the second flange (113) is formed with a drive block (119), and the other is formed with an arc groove (120), the depth of which gradually decreases along the direction of movement.

6. The manual / electric integrated operating device for the drawer of the distribution cabinet unit according to any one of claims 1 to 5, characterized in that: It also includes a circuit breaker operation mechanism, which includes a second fixed frame (1), a connecting piece (2), a connecting rod (3), and a sliding piece (4). The connecting piece (2) is provided with a first operating hole (21) for the circuit breaker operation rod to pass through. The first operating hole (21) is square. The connecting piece (2) can rotate with the circuit breaker operation rod by means of the connecting piece sleeve (22). The second fixed frame (1) includes a plate-shaped part (1a) and a partition part (13) opposite to the plate-shaped part (1a). The plate-shaped part (1a) and the partition part (13) form a receiving cavity. The rotating screw (7) is located in the receiving cavity. One end of the connecting rod (3) is hinged to the connecting piece (2), so that the connecting rod (3) can move up or down as the connecting piece (2) rotates. A transmission block (6) is provided on the connecting rod (3). A first guide hole (12) is provided on the plate-shaped part (1a). A second guide hole (43) is provided on the sliding piece (4). The extension paths of the first guide hole (12) and the second guide hole (43) are at least partially intersecting. The transmission block (6) is inserted into the first guide hole (12) and the second guide hole (43). As the transmission block (6) moves in the first guide hole (12), it can drive the sliding piece (4) to move relative to the plate-shaped part (1a).

7. The manual / electric integrated operating device for the drawer of the distribution cabinet unit according to claim 6, characterized in that: It also includes an interlocking mechanism located within the accommodating cavity, wherein a tooth (71) is provided on the rotating screw (7); The interlocking mechanism includes a fixed shaft (9a), a locking disc (5), and a locking shaft (8). The rotating screw (7) drives the locking shaft (8) to rotate through a gear transmission assembly that meshes with the paddle (71). The locking disc (5) is fixedly installed on the fixed shaft (9a). At least one notch (51) is provided on the locking disc (5). A locking block (42) is provided on the plate-shaped part (1a). A trigger end is formed on the sliding piece (4) at the position corresponding to the locking block (42). When the sliding piece (4) moves relative to the plate-shaped part (1a), the trigger end controls the locking block (42) to be engaged in the notch (51).

8. The manual / electric integrated operating device for the drawer of the distribution cabinet unit according to claim 7, characterized in that: There are two notches (51), which are distributed at intervals in the circumferential direction of the locking plate (5), and the two notches (51) are aligned with the locking block (42) respectively when the push mechanism adjusts the low-voltage switchgear to the connection state and the test state.

9. The manual / electric integrated operating device for the drawer of the distribution cabinet unit according to claim 7, characterized in that: The first fixed frame (107) is provided with a micro-motion limit switch (121), and the second fixed frame (1) is provided with a protruding rivet (122). One end of the protruding rivet (122) is movably connected to the micro-motion limit switch (121), and the other end of the protruding rivet (122) is connected to the gear transmission assembly. The gear transmission assembly pushes the protruding rivet (122) forward, thereby triggering the moving contact of the micro-motion limit switch (121).

10. The manual / electric integrated operating device for the drawer of the distribution cabinet unit according to claim 7, characterized in that: The gear transmission assembly includes a first driven gear (81), a second driven gear (82), and a third driven gear (91). The first driven gear (81) and the second driven gear (82) are fixed on the locking shaft (8). The third driven gear (91) is fixed on the fixed shaft (9a) and meshes with the second driven gear (82). The first driven gear (81) meshes with the shift tooth (71).

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