Switching operating handle limit switchgear drawer unit

Abstract

The utility model provides a switch operating handle limiting type switch cabinet drawer unit, include: switch cabinet body, drawer frame, drawer assembly, switch regulation executive mechanism, push assembly and translation adjusting mechanism, be provided with drawer frame, drawer assembly, switch regulation executive mechanism, push assembly and translation adjusting mechanism on switch cabinet body, drawer frame includes: fixed frame and support block, fixed frame installs in switch cabinet body one side, has the push -and -pull hole for the drawer assembly to pass in on switch cabinet body, drawer assembly is supported by fixed frame, drawer assembly can move in X direction relative fixed frame, the recessed installation groove has in fixed frame middle downward, support block is installed in the installation groove. The utility model can limit the drawer assembly to draw out when needing, prevent the equipment damage or the operation mistake caused by the drawer assembly excessive draw -out, greatly promoted the security of switch cabinet operation as a whole.

Description

Technical Field

[0001] This utility model relates to the field of switch cabinet drawers, specifically to a switch cabinet drawer unit with a switch operating handle limiter. Background Technology

[0002] Chinese patent disclosure discloses a switch cabinet drawer unit push mechanism with application number CN201320833480.0, comprising: a transmission mechanism including a push screw, a positioning member, and a drive shaft that can be driven to move the push screw; a clutch mechanism disposed between the drive shaft and the push screw, connecting the drive shaft and the push screw and capable of changing between a clutch state; a force transmission plate slidably connected to the drawer unit and drively connected to the clutch mechanism, the movement of the force transmission plate driving the clutch mechanism to change between a clutch state; a locking bracket and a guide rail fixed to the switch cabinet, the drawer unit being slidably connected to the guide rail, the locking bracket being movably connected to the drawer unit and moving between a locked position that can lock onto the guide rail and a loose position that can release the lock, the force transmission plate being drively connected to the locking bracket and driving the locking bracket to move between the locked position and the loose position.

[0003] This design has a significant flaw: its interlocking mechanism relies on the overall state of the circuit breaker to indirectly control the drawer operation, rather than directly on the closed state of the trip switch. Specifically, existing technology indirectly responds to position changes through components such as reset pins, the bent side of the fixed bracket, and spring plates, but does not require the closure of the trip switch as a mandatory prerequisite for unlocking and pulling out the drawer. This means that the drawer assembly may still be unlocked even when the trip switch is not closed, increasing the risk of misoperation. Utility Model Content

[0004] This utility model provides a switch cabinet drawer unit with a switch operating handle limiter, which solves the problem in the prior art that the closing of the trip switch is not a mandatory prerequisite for unlocking and pulling out the drawer, which may result in the drawer assembly being unlocked even when the trip switch is not closed, increasing the risk of misoperation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: The present invention provides a switch cabinet drawer unit with a switch operating handle limit, comprising: a switch cabinet body, a drawer frame, a drawer assembly, a switch adjustment actuator, a push assembly, and a translation adjustment mechanism;

[0006] The switch cabinet is equipped with drawer racks, drawer assemblies, switch adjustment mechanisms, push components, and translation adjustment mechanisms.

[0007] The drawer frame includes: a fixed frame and a support block. The fixed frame is installed on one side of the switch cabinet. The switch cabinet has a push-pull hole for the drawer assembly to pass through. The drawer assembly is supported by the fixed frame and can move relative to the fixed frame in the X direction. The fixed frame has a downward recessed mounting groove in the middle, and the support block is installed in the mounting groove.

[0008] The drawer assembly is equipped with a translation adjustment mechanism, the output end of which is movably connected to the support block;

[0009] The translation adjustment mechanism includes: a first adjustment part and a second adjustment part, both of which are located in the X direction. The first adjustment part can move relative to the second adjustment part in the X direction. The first adjustment part and the second adjustment part can close or separate from each other. The first adjustment part protrudes from the drawer assembly, and the second adjustment part is installed inside the drawer assembly. The second adjustment part is movably connected to a support block. The support block restricts the drawer assembly from being pulled out of the switch cabinet by acting on the second adjustment part.

[0010] The drawer assembly is equipped with a switch adjustment actuator located next to the translation adjustment mechanism. The switch adjustment actuator is equipped with a trip switch and other switches. The switch adjustment actuator is used to close the trip switch or other switches.

[0011] A push assembly is provided between the switch regulating actuator and the output end of the first regulating part. One end of the push assembly is the mounting end, and the other end of the push assembly is the squeezing end. The mounting end of the push assembly is connected to the output end of the first regulating part. The squeezing end of the push assembly can be squeezed by the switch regulating actuator when the trip switch is squeezed closed. The mounting end of the push assembly can move relative to the drawer assembly in the X direction.

[0012] Preferably, the drawer assembly includes: a sliding plate, a bottom plate, and side plates. The sliding plate is located in the sliding hole, the bottom plate is installed on the side of the sliding plate near the second adjustment part, the bottom plate has side plates protruding upwards on both sides, the bottom plate is slidably connected to the fixing frame, and the bottom plate has a sliding groove for the support block to pass through. The sliding plate, the bottom plate, and the side plates form a box-shaped structure with an open top.

[0013] Preferably, the second adjustment part includes: a mounting frame and a rotating shaft. The mounting frame has a U-shaped structure. The bottom of the mounting frame is connected to the base plate. The rotating shaft is rotatably mounted on the mounting frame. The rotating shaft is threadedly connected to the support block. A first toothed ring is provided at the end of the rotating shaft near the second adjustment part.

[0014] The first adjustment part includes: an auxiliary rotation handle, a rotating shaft, a spring, and a toothed sleeve. The auxiliary rotation handle is fixed to one end of the rotating shaft. The rotating shaft passes through the push-pull plate and the mounting bracket. The other end of the rotating shaft is equipped with a toothed sleeve that can move in the X direction. The auxiliary rotation handle cannot move in the X direction relative to the mounting bracket and the push-pull plate. The toothed sleeve cannot rotate relative to the auxiliary rotation handle. The rotating shaft can rotate relative to the mounting bracket. The first toothed ring can mesh with the toothed sleeve. The toothed sleeve is rotatably connected to the mounting end of the push assembly. A spring is installed between the inner wall of the toothed sleeve and the rotating shaft. The spring is used to maintain a distance between the toothed sleeve and the first toothed ring.

[0015] Preferably, the pushing component includes: a mounting block and a pressing block, the mounting block and the pressing block are fixed, the mounting block surrounds the toothed sleeve, the bottom of the pressing block can slide relative to the base plate in the X direction, the top of the pressing block is a pressing surface, the pressing surface is an arc surface, and the pressing surface can be pressed by the output end of the switch regulating actuator.

[0016] Preferably, the switch adjustment actuator includes: a fixed block, an adjustment shaft, an adjustment handle, a rotating disk, and a limit assembly. The fixed block is mounted on the base plate. An adjustment handle is provided at one end of the adjustment shaft. The other end of the adjustment shaft passes through the push-pull plate and the fixed block. The adjustment shaft is fixedly connected to the rotating disk. The fixed block is located between the rotating disk and the push-pull plate. The fixed block guides the adjustment shaft to rotate. Other switches and a trip switch are mounted on the fixed block. A first extrusion protrusion is provided on the side of the rotating disk near the extrusion block, and a second extrusion protrusion is provided on the side of the rotating disk away from the extrusion block. The first extrusion protrusion is used to extrude the extrusion block, and the second extrusion protrusion is used to extrude other switches or trip switches.

[0017] A limiting component is also provided on one side of the fixed block, which is used to limit the rotation of the adjusting shaft.

[0018] Preferably, the limiting component includes: a second toothed ring, a positioning block, a spring, and a rotating rack. The second toothed ring is wrapped around the adjusting shaft and cannot rotate relative to the adjusting shaft. A positioning block is provided on one side of the second toothed ring and is fixedly connected to a fixed block. A rotating rack is provided between the positioning block and the second toothed ring. One end of the rotating rack is rotatably connected to the fixed block. The spring is located between the rotating rack and the positioning block. The elastic force of the spring can make the rotating rack mesh with the second toothed ring. Both ends of the spring are fixedly connected to the rotating rack and the positioning block, respectively.

[0019] Preferably, the other switches include a closing switch and a tripping switch, all of which are arranged around the adjusting shaft.

[0020] Preferably, the rotating shaft and the gear sleeve are connected by a spring, and the spring has an elastic force that keeps the gear sleeve away from the rotating shaft.

[0021] Compared with existing technologies, this utility model has the following advantages: The switch operating handle limit type switch cabinet drawer unit, through the rotary disk design of the switch adjustment actuator, can accurately control the closing of the opening switch, closing switch, or trip switch through different pressing protrusions, and the limit component can effectively prevent the adjustment shaft from over-rotating, ensuring the accuracy of operation; the pushing component effectively transmits the movement of the first adjustment part to the switch adjustment actuator, ensuring the timeliness and stability of the pressing action; the translation adjustment mechanism can flexibly adjust the position of the drawer assembly through the relative movement of the first and second adjustment parts, and at the same time restrict the drawer assembly from being pulled out when necessary, preventing equipment damage or operational errors caused by excessive pulling out of the drawer assembly, thus greatly improving the safety, reliability, and convenience of switch cabinet operation.

[0022] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a drawer unit in a switch cabinet with a limit switch operating handle.

[0024] Figure 2 This is a schematic diagram of a drawer unit in a switch cabinet with a limit switch operating handle.

[0025] Figure 3 Perspective view of a drawer unit of a switch cabinet with a limit switch operating handle.

[0026] Figure 4 This is a partial perspective view of a drawer unit of a switch cabinet with a limit switch operating handle.

[0027] Reference numerals in the attached drawings: 1. Switch cabinet body; 2. Drawer frame; 21. Fixing bracket; 21. Mounting groove; 212. Support block; 22. Drawer assembly; 3. Sliding plate; 31. Base plate; 32. Side plate; 33. Switch adjustment mechanism; 4. Fixing block; 41. Adjusting shaft; 42. Adjusting handle; 43. Rotating disc; 44. First pressing protrusion; 441. Second pressing protrusion; 442. Limiting assembly; 45. Second toothed ring; 451. Positioning block; 452. Spring; 453. Rotating rack; 454. Pushing assembly; 5. Mounting block; 51. Pressing block; 52. Translation adjustment mechanism; 6. First adjusting part; 61. Auxiliary handle; 611. Rotating shaft; 612. Toothed sleeve; 613. Second adjusting part; 62. Mounting bracket; 621. Rotating shaft; 622. Other switches; 7. Closing switch; 71. Tripping switch; 72. Detailed Implementation

[0028] To make the technical means, creative features, achieved objectives and functions of this utility model clearer and easier to understand, the utility model will be further described below with reference to the accompanying drawings and specific embodiments:

[0029] like Figures 1 to 4 As shown, this utility model proposes a switch cabinet drawer unit with a limit switch operating handle, including: a switch cabinet body 1, a drawer frame 2, a drawer assembly 3, a switch adjustment actuator 4, a push assembly 5, and a translation adjustment mechanism 6; the switch cabinet body 1 is provided with the drawer frame 2, drawer assembly 3, switch adjustment actuator 4, push assembly 5, and translation adjustment mechanism 6; the drawer frame 2 includes: a fixing frame 21 and a support block 22, the fixing frame 21 is installed on one side of the switch cabinet body 1, and the switch cabinet body 1 has an opening for the drawer assembly 3 to pass through. Through the sliding hole, the drawer assembly 3 is supported by the fixing bracket 21. The drawer assembly 3 can move relative to the fixing bracket 21 in the X direction. The fixing bracket 21 has a downwardly recessed mounting groove 212, and a support block 22 is installed in the mounting groove 212. The drawer assembly 3 is provided with a translation adjustment mechanism 6, and the output end of the translation adjustment mechanism 6 is movably connected to the support block 22. The translation adjustment mechanism 6 includes: a first adjustment part 61 and a second adjustment part 62. Both the first adjustment part 61 and the second adjustment part 62 are located in the X direction. The first adjustment part 61 can move relative to the second adjustment part 22 in the X direction. The two adjusting parts 62 move in the X direction. The first adjusting part 61 and the second adjusting part 62 can close or separate from each other. The first adjusting part 61 protrudes from the drawer assembly 3, and the second adjusting part 62 is installed inside the drawer assembly 3. The second adjusting part 62 is movably connected to the support block 22. The support block 22 restricts the drawer assembly 3 from being pulled out of the switch cabinet 1 by acting on the second adjusting part 62. The drawer assembly 3 is provided with a switch adjusting actuator 4 located next to the translation adjusting mechanism 6. The switch adjusting actuator 4 is equipped with a trip switch and other switches 7. The switch adjusting actuator 4 is used to close the trip switch or other switches 7. A pushing component 5 is provided between the switch adjusting actuator 4 and the output end of the first adjusting part 61. One end of the pushing component 5 is the mounting end, and the other end of the pushing component 5 is the pressing end. The mounting end of the pushing component 5 is connected to the output end of the first adjusting part 61. The pressing end of the pushing component 5 can be pressed by the switch adjusting actuator 4 when the trip switch is pressed closed. The mounting end of the pushing component 5 can move relative to the drawer assembly 3 in the X direction.

[0030] In use, when the adjusting switch adjusts the actuator 4, it presses the pressing end of the pushing component 5. The mounting end of the pushing component 5 then drives the first adjusting part 61 to move in the X direction, causing the first adjusting part 61 and the second adjusting part 62 to close or separate. When the first adjusting part 61 and the second adjusting part 62 are closed and engaged, rotating the auxiliary handle 611 causes the first adjusting part 61 to drive the second adjusting part 62 to rotate relative to the support block 22. Since the second adjusting part 62 is spirally connected to the support block 22, the drawer assembly 3 can be pulled out. Conversely, when the adjusting switch adjusts the actuator 4 so that it no longer presses the pushing component 5, the pushing component 5 no longer drives the first adjusting part 61, and the first adjusting part 61 and the second adjusting part 62 remain separated. At this time, the support block 22 restricts the drawer assembly 3 from being pulled out by acting on the second adjusting part 62, thereby preventing the drawer from being pulled out accidentally.

[0031] The drawer assembly 3 includes a sliding plate 31, a bottom plate 32, and side plates 33. The sliding plate 31 is located in a sliding hole. The bottom plate 32 is installed on the side of the sliding plate 31 near the second adjustment part 62. Side plates 33 protrude upwards on both sides of the bottom plate 32. The bottom plate 32 is slidably connected to the fixing frame 21. The bottom plate 32 has a sliding groove for the support block 22 to pass through. The sliding plate 31, bottom plate 32, and side plates 33 form a box-shaped structure with an open top. The sliding groove on the bottom plate 32 allows the support block 22 to pass through, thereby allowing the bottom plate 32 to slide relative to the support block 22. This ensures that the drawer assembly 3 is not blocked by the support block 22 when moving in the X direction. At the same time, the bottom plate 32 is slidably connected to the fixing frame 21, allowing the drawer assembly 3 to slide smoothly on the fixing frame 21, realizing the action of pulling out and pushing in the drawer.

[0032] The second adjustment part 62 includes: a mounting frame 621 and a rotating shaft 622. The mounting frame 621 has a U-shaped structure, and its bottom is connected to the base plate 32. The rotating shaft 622 is rotatably mounted on the mounting frame 621 and is threadedly connected to the support block 22. The end of the rotating shaft 622 near the second adjustment part 62 is provided with a first toothed ring (not shown in the figure). The first adjustment part 61 includes: an auxiliary rotation handle 611, a rotating shaft 612, a spring, and a toothed sleeve 613. The auxiliary rotation handle 611 is fixed to one end of the rotating shaft 612, and the rotating shaft 612 passes through the push-pull mechanism. Plate 31 and mounting bracket 621, the other end of rotating shaft 612 is equipped with a toothed sleeve 613 that can move in the X direction, the auxiliary rotation handle 611 cannot move in the X direction relative to mounting bracket 621 and push-pull plate 31, the toothed sleeve 613 cannot rotate relative to auxiliary rotation handle 611, rotating shaft 612 can rotate relative to mounting bracket 621, the first toothed ring can mesh with the toothed sleeve 613, the toothed sleeve 613 is rotatably connected to the mounting end of push assembly 5, a spring is installed between the inner wall of the toothed sleeve 613 and the rotation, the spring is used to maintain a distance between the toothed sleeve 613 and the first toothed ring. Rotating the rotating shaft 612 by the auxiliary rotating handle 611 causes the rotating shaft 612 to be connected to the toothed sleeve 613, and the toothed sleeve 613 and the rotating shaft 612 to be connected by a spring. In the initial state, the spring causes the toothed sleeve 613 to separate from the first toothed ring. When the toothed sleeve 613 is moved to the position of meshing with the first toothed ring by the push assembly 5, the auxiliary rotating handle 611 is rotated again. The meshing of the toothed sleeve 613 with the first toothed ring causes the rotating shaft 622 to rotate. Since the rotating shaft 622 is threadedly connected to the support block 22, the rotation of the rotating shaft 622 will cause the support block 22 to move along the thread direction, thereby realizing the operation of pulling out or pushing in the drawer assembly 3.

[0033] The pushing component 5 includes a mounting block 51 and a pressing block 52. The mounting block 51 and the pressing block 52 are fixed together. The mounting block 51 surrounds the toothed sleeve 613. The bottom of the pressing block 52 can slide relative to the base plate 32 in the X direction. The top of the pressing block 52 is a pressing surface, which is arc-shaped and can be pressed by the output end of the switch adjustment actuator 4. When the output end of the switch adjustment actuator 4 applies pressure to the arc-shaped pressing surface of the pressing block 52, the pressing block 52 is subjected to a force. Since the pressing block 52 is fixedly connected to the mounting block 51 and the mounting block 51 surrounds the toothed sleeve 613, and the bottom of the pressing block 52 can slide on the base plate 32 in the X direction, the pressing block 52 transmits the pressure to the toothed sleeve 613, causing the toothed sleeve 613 to move in the X direction. The movement of the toothed sleeve 613 then affects the relative position of the first adjustment part 61 and the second adjustment part 62. When the toothed sleeve 613 moves to engage with the first toothed ring, the auxiliary rotation handle 611 is rotated to move the rotating shaft 622 relative to the support plate in the X direction, so as to realize the pull-out or push-in of the drawer assembly 3.

[0034] The switch adjustment actuator 4 includes: a fixed block 41, an adjustment shaft 42, an adjustment handle 43, a rotating disk 44, and a limiting component 45. The fixed block 41 is mounted on the base plate 32. The adjustment handle 43 is provided at one end of the adjustment shaft 42, and the other end of the adjustment shaft 42 passes through the push-pull plate 31 and the fixed block 41. The adjustment shaft 42 is fixedly connected to the rotating disk 44. The fixed block 41 is located between the rotating disk 44 and the push-pull plate 31. The fixed block 41 guides the adjustment shaft 42 to rotate. Other switches 7 and a trip switch are mounted on the fixed block 41. The rotating disk 44 is provided with a first extrusion protrusion 441 on the side near the extrusion block 52 and a second extrusion protrusion 442 on the side away from the extrusion block 52. The first extrusion protrusion 441 is used to extrude the extrusion block 52, and the second extrusion protrusion 442 is used to extrude other switches 7 or trip switches. A limiting component 45 is also provided on one side of the fixed block 41 to limit the rotation of the adjustment shaft 42. Rotate the adjustment handle 43, and the adjustment shaft 42 drives the rotating disk 44 to rotate. Its first pressing protrusion 441 presses the pushing component 5, and the pushing component 5 drives the first adjustment part 61 to move horizontally, and to close or separate from the second adjustment part 62.

[0035] The limiting component 45 includes: a second toothed ring 451, a positioning block 452, a spring plate 453, and a rotating rack 454. The second toothed ring 451 is wrapped around the adjusting shaft 42 and cannot rotate relative to the adjusting shaft 42. The positioning block 452 is provided on one side of the second toothed ring 451 and is fixedly connected to the fixing block 41. The rotating rack 454 is provided between the positioning block 452 and the second toothed ring 451. One end of the rotating rack 454 is rotatably connected to the fixing block 41. The spring plate 453 is located between the rotating rack 454 and the positioning block 452. The elastic force of the spring plate 453 can make the rotating rack 454 mesh with the second toothed ring 451. Both ends of the spring plate 453 are fixedly connected to the rotating rack 454 and the positioning block 452, respectively. When the adjusting shaft 42 is rotated, the second toothed ring 451 rotates with it. The elastic force of the spring plate 453 keeps the rotating rack 454 engaged with the second toothed ring 451. One end of the rotating rack 454 is connected to the fixed block 41, thereby limiting the rotation range of the adjusting shaft 42, preventing excessive rotation, and ensuring that the rotating disk 44 rotates within the set angle.

[0036] Other switches 7 include a closing switch 71 and a tripping switch 72, all of which are mounted around the adjusting shaft 42. When the adjusting shaft 42 is rotated, the rotating disk 44 rotates accordingly. Different pressing protrusions on the rotating disk 44 can respectively press and push the pushing assembly 5 or engage other switches 7 to achieve corresponding functional control.

[0037] The rotating shaft 612 and the toothed sleeve 613 are connected by a spring. The spring keeps the toothed sleeve 613 away from the rotating shaft 622. The rotating shaft 612 and the toothed sleeve 613 are connected by a spring. The spring causes the toothed sleeve 613 to be moved away from the rotating shaft 622 by the spring force, maintaining the distance between them and preventing the drawer assembly 3 from being pulled out.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. Switchgear cabinet drawer unit with limit switch for switchgear operating handle, characterized in that include: The switch cabinet body (1), drawer frame (2), drawer assembly (3), switch adjustment mechanism (4), push assembly (5), and translation adjustment mechanism (6); The switch cabinet body (1) is equipped with a drawer frame (2), a drawer assembly (3), a switch adjustment mechanism (4), a push assembly (5), and a translation adjustment mechanism (6); The drawer frame (2) includes a fixed frame (21) and a support block (22). The fixed frame (21) is installed on one side of the switch cabinet (1). The switch cabinet (1) has a push-pull hole for the drawer assembly (3) to pass through. The drawer assembly (3) is supported by the fixed frame (21). The drawer assembly (3) can move relative to the fixed frame (21) in the X direction. The fixed frame (21) has a mounting groove (212) recessed downward in the middle. The support block (22) is installed in the mounting groove (212). The drawer assembly (3) is provided with a translation adjustment mechanism (6), and the output end of the translation adjustment mechanism (6) is movably connected to the support block (22); The translation adjustment mechanism (6) includes: a first adjustment part (61) and a second adjustment part (62). Both the first adjustment part (61) and the second adjustment part (62) are located in the X direction. The first adjustment part (61) can move relative to the second adjustment part (62) in the X direction. The first adjustment part (61) and the second adjustment part (62) can close or separate from each other. The first adjustment part (61) protrudes from the drawer assembly (3). The second adjustment part (62) is installed inside the drawer assembly (3). The second adjustment part (62) is movably connected to the support block (22). The support block (22) restricts the drawer assembly (3) from being pulled out of the switch cabinet (1) by acting on the second adjustment part (62). The drawer assembly (3) is provided with a switch adjustment actuator (4) located next to the translation adjustment mechanism (6). The switch adjustment actuator (4) is equipped with a trip switch and other switches (7). The switch adjustment actuator (4) is used to press the trip switch or other switches (7) to close. A push assembly (5) is provided between the output end of the switch regulating actuator (4) and the first regulating part (61). One end of the push assembly (5) is the mounting end, and the other end of the push assembly (5) is the squeezing end. The mounting end of the push assembly (5) is connected to the output end of the first regulating part (61). The squeezing end of the push assembly (5) can be squeezed by the switch regulating actuator (4) when the trip switch is squeezed closed. The mounting end of the push assembly (5) can move relative to the drawer assembly (3) in the X direction.

2. Switchgear cabinet drawer unit with limit switch for switch operation handle according to claim 1, characterized in that The drawer assembly (3) includes: a sliding plate (31), a bottom plate (32), and a side plate (33). The sliding plate (31) is located in the sliding hole. The bottom plate (32) is installed on the side of the sliding plate (31) near the second adjustment part (62). The bottom plate (32) has side plates (33) protruding upward on both sides. The bottom plate (32) is slidably connected to the fixing frame (21). The bottom plate (32) has a sliding groove for the support block (22) to pass through. The sliding plate (31), the bottom plate (32), and the side plate (33) form a box-shaped structure with an opening at the top.

3. Switchgear cabinet drawer unit with limit switch for switch operation handle according to claim 2, characterized in that The second adjustment part (62) includes: a mounting frame (621) and a rotating shaft (622). The mounting frame (621) has a U-shaped structure. The bottom of the mounting frame (621) is connected to the base plate (32). The rotating shaft (622) is rotatably mounted on the mounting frame (621). The rotating shaft (622) is threadedly connected to the support block (22). A first toothed ring is provided at the end of the rotating shaft (622) near the second adjustment part (62). The first adjustment part (61) includes: an auxiliary rotation handle (611), a rotating shaft (612), a spring, and a toothed sleeve (613). The auxiliary rotation handle (611) is fixed to one end of the rotating shaft (612). The rotating shaft (612) passes through the push-pull plate (31) and the mounting bracket (621). The other end of the rotating shaft (612) is equipped with a toothed sleeve (613) that can move in the X direction. The auxiliary rotation handle (611) cannot move in the X direction relative to the mounting bracket (621) and the push-pull plate (31). The toothed sleeve (613) cannot rotate relative to the auxiliary rotation handle (611). The rotating shaft (612) can rotate relative to the mounting bracket (621). The first toothed ring can mesh with the toothed sleeve (613). The toothed sleeve (613) is rotatably connected to the mounting end of the push assembly (5). A spring is installed between the inner wall of the toothed sleeve (613) and the rotating shaft. The spring is used to maintain a distance between the toothed sleeve (613) and the first toothed ring.

4. The switch operating handle limit type switch cabinet drawer unit according to claim 3, characterized in that, The push assembly (5) includes: a mounting block (51) and a pressing block (52). The mounting block (51) and the pressing block (52) are fixed. The mounting block (51) surrounds the toothed sleeve (613). The bottom of the pressing block (52) can slide relative to the base plate (32) in the X direction. The top of the pressing block (52) is a pressing surface. The pressing surface is an arc-shaped surface. The pressing surface can be pressed by the output end of the switch adjustment actuator (4).

5. The switch operating handle limiting type switch cabinet drawer unit according to claim 4, characterized in that, The switch adjustment actuator (4) includes: a fixed block (41), an adjustment shaft (42), an adjustment handle (43), a rotating disk (44), and a limit assembly (45). The fixed block (41) is mounted on the base plate (32). One end of the adjustment shaft (42) is provided with the adjustment handle (43). The other end of the adjustment shaft (42) passes through the push-pull plate (31) and the fixed block (41). The adjustment shaft (42) is fixedly connected to the rotating disk (44). The fixed block (41) is located between the rotating disk (44) and the push-pull plate. Between the plates (31), the fixed block (41) guides the rotating shaft (42) to rotate. Other switches (7) and trip switches are mounted on the fixed block (41). The rotating disk (44) has a first extrusion protrusion (441) on the side close to the extrusion block (52) and a second extrusion protrusion (442) on the side away from the extrusion block (52). The first extrusion protrusion (441) is used to extrude the extrusion block (52), and the second extrusion protrusion (442) is used to extrude other switches (7) or trip switches. A limiting component (45) is also provided on one side of the fixed block (41), which is used to limit the rotation of the adjusting shaft (42).

6. The switch operating handle limiting type switch cabinet drawer unit according to claim 5, characterized in that, The limiting component (45) includes: a second toothed ring (451), a positioning block (452), a spring piece (453), and a rotating rack (454). The second toothed ring (451) is wrapped around the adjusting shaft (42), and the second toothed ring (451) cannot rotate relative to the adjusting shaft (42). A positioning block (452) is provided on one side of the second toothed ring (451). The positioning block (452) is fixedly connected to the fixing block (41). The positioning block (452) and the fixing block (41) are fixedly connected. A rotating rack (454) is provided between the second toothed ring (451). One end of the rotating rack (454) is rotatably connected to the fixed block (41). A spring piece (453) is located between the rotating rack (454) and the positioning block (452). The elastic force of the spring piece (453) can make the rotating rack (454) mesh with the second toothed ring (451). Both ends of the spring piece (453) are fixedly connected to the rotating rack (454) and the positioning block (452) respectively.

7. The switch operating handle limiting type switch cabinet drawer unit according to claim 6, characterized in that, Other switches (7) include: closing switch (71) and trip switch (72), which are all surrounding the regulating shaft (42).

8. The switch operating handle limit type switch cabinet drawer unit according to claim 7, characterized in that, The rotating shaft (612) and the toothed sleeve (613) are connected by a spring, which keeps the toothed sleeve (613) away from the rotating shaft (622) by the elastic force of the spring.

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