A withdrawable power distribution cabinet and its use method

Abstract

The present invention relates to the technical field of power distribution cabinets, and specifically to a pull-out power distribution cabinet and a method for using the same, wherein a pull-out power distribution cabinet comprises a main cabinet body, guide rods and a drawer box, and a clamping mechanism, a transmission mechanism and a reset mechanism are installed at the bottom of the drawer box. During use of the present invention, when the drawer box is taken out of the placement cavity of the main cabinet body, two groups of pop-up card blocks in the clamping assembly move to both sides, engage and lock with the corresponding two groups of guide rods, and support and fix the drawer box in the vertical direction. When the drawer box is taken out of the placement cavity as a whole, the drawer box can be unlocked and moved in the vertical direction. The two groups of pop-up card blocks in the clamping assembly can be driven by the reset mechanism to be reset and stored at the bottom of the drawer box, so that the two groups of pop-up card blocks are disengaged from the two groups of guide rods, and the drawer box can be disassembled, thereby avoiding the problem that the existing drawer cabinet, due to its large weight, poses high operating requirements to the staff during the extraction and transportation process.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinets, and in particular to a draw-out power distribution cabinet and a method of using the same. Background Art

[0002] A withdrawable power distribution cabinet, also known as a drawer-type switchgear or enclosed distribution cabinet, is a type of power distribution equipment enclosed in a steel plate enclosure. Its primary feature is its internal drawer-like design, where each electrical component is housed in a removable drawer, forming a functional unit capable of performing a specific power supply task. The drawer-type distribution cabinet distributes electrical energy to each device as needed, ensuring the normal operation of the power system.

[0003] In order to ensure the stable and safe use of the drawer distribution cabinet, staff are required to regularly maintain and inspect the drawer distribution cabinet, such as regularly cleaning the dust and debris inside the distribution cabinet, checking the connection and insulation performance of electrical components, and checking whether the protection of electrical appliances is reliable, etc.

[0004] At present, when carrying out actual maintenance operations, staff often need to pull out drawer cabinets of different heights to be maintained from the main cabinet. However, since the shell of the drawer distribution cabinet is often made of steel plates to ensure good sealing and prevent external factors such as dust and moisture from affecting the internal electrical components, it is heavy. Therefore, when pulling out and carrying drawer cabinets of different heights, high operational requirements are placed on the staff. Summary of the Invention

[0005] The object of the present invention is to provide a withdrawable power distribution cabinet and a method of using the same, so as to solve the above-mentioned technical problems.

[0006] To achieve the above object, the present invention provides a withdrawable power distribution cabinet, comprising:

[0007] The main cabinet has a row of placement cavities vertically formed thereon;

[0008] There are two sets of guide rods, which are fixedly mounted on the main cabinet in a vertical direction and located on both sides of the placement cavity;

[0009] The drawer boxes are provided in multiple groups and are slidably mounted in corresponding placement cavities. A clamping mechanism, a transmission mechanism, and a reset mechanism are fixedly mounted on the bottom of the drawer boxes.

[0010] The clamping mechanism is used to clamp and fix on two sets of guide rods when the drawer box is pulled out of the placement cavity. The clamping mechanism includes two sets of pop-up card blocks. The pop-up card blocks are L-shaped, one end of which is slidably mounted on the guide slider at the bottom of the drawer box, and the other end is provided with a clamping groove for clamping the guide rod, and a locking piece for locking the pop-up card block is provided in the clamping groove.

[0011] The two ends of the transmission mechanism are respectively connected to the proximal ends of the two groups of pop-up card blocks, and the transmission mechanism elastically supports the two groups of pop-up card blocks to pop out in a mirrored manner;

[0012] The reset mechanism is connected to the clamping mechanism through a transmission mechanism, and is used to pull the two groups of pop-up card blocks closer together in a mirror-image manner and store them at the bottom of the drawer box.

[0013] As a further solution of the present invention, a plurality of groups of main cabinets are fixedly connected in sequence, and the adjacent sides of adjacent main cabinets can share a group of guide rods.

[0014] As a further solution of the present invention, the locking member is a locking gear, which is rotatably installed in a clamping groove at one end of the pop-up block and engages and locks with a fixed rack installed on the vertical section of the guide rod.

[0015] As a further solution of the present invention, the locking gear is driven to rotate by a driving motor on the pop-up card block.

[0016] As a further solution of the present invention, the transmission mechanism includes a movable box, a connecting plate, a transmission gear rod and a second elastic member;

[0017] Wherein, the movable box is slidably mounted on the bottom of the drawer box;

[0018] One end of the two sets of connecting plates is correspondingly slidably inserted into the two sides of the movable box, and the other end is fixedly connected to the adjacent ends of the two sets of pop-up card blocks. Transmission racks are fixedly installed on the adjacent plate surfaces of the two sets of connecting plates.

[0019] The transmission gear rod is rotatably mounted on the drawer box, and a transmission gear is coaxially mounted on the rod body at one end of the rod inserted into the movable box. Both sides of the movable gear are meshed with two sets of transmission racks for transmission;

[0020] One end of the second elastic member is fixedly connected to a group of pop-up card blocks, and the other end is fixedly connected to the corresponding side of the movable box.

[0021] As a further solution of the present invention, the reset mechanism includes a ball screw, a reset slider, a limit pin, a control rod I and a control rod II;

[0022] The ball screw is rotatably mounted on the bottom of the drawer box, and a limiting cavity is provided therein for one end of the transmission gear rod to be inserted and slidably limited. The ball screw drives the transmission gear rod to rotate coaxially.

[0023] The reset slider is slidably mounted on the bottom of the drawer box, and a roller inner nut for screw-connecting the ball screw is fixedly mounted in the central mounting hole;

[0024] The limit latch is elastically mounted on the bottom of the drawer box through a No. 3 elastic piece;

[0025] The control rod I is slidably mounted on the bottom of the drawer box, with one end extending out of the front panel of the drawer box and the other end fixedly connected to the side of the reset slider. A locking cone ring is fixedly mounted on the control rod I.

[0026] The control rod II is slidably installed at the bottom of the drawer box, and one end thereof extends out of the front panel of the drawer box, and the other end is fixedly installed with a transition ring through a mounting plate. The size of the transition ring is not smaller than the bottom ring size of the locking cone ring, and the transition ring can be magnetically fixed on the end face of the bottom ring of the locking cone ring.

[0027] As a further solution of the present invention, the two groups of guide sliders are slidably installed in the corresponding guide rails on both sides of the bottom of the drawer box, and one end of the guide slider is fixedly connected to the movable wedge installed on the guide rail through a connecting column, and the movable wedge is elastically connected to the guide rail through a No. 1 elastic member, and a limiting wedge is installed on the guide rail for positioning the sliding stroke of the movable wedge, and the limiting wedge is transmission-connected to the reset mechanism through a connecting member.

[0028] As a further solution of the present invention, the limiting wedge block is slidably installed in a guide hole opened on the guide rail, and is elastically connected in the guide hole through a No. 4 elastic piece. The connecting piece is an elastic pull rope, and the elastic pull rope passes through the routing hole on the guide rail. One end is fixedly connected to the bottom of the limiting wedge block, and the other end is fixedly connected to the reset slider.

[0029] At the same time, the present invention also provides a method for using a power distribution cabinet, which is applied to the above-mentioned withdrawable power distribution cabinet, comprising:

[0030] When the drawer box is pulled out, the two sets of pop-up card blocks in the clamping assembly at the bottom of the drawer box leak out of the placement cavity of the main cabinet. The elastic assembly of the transmission assembly supports them to move to both sides and engage with the corresponding two sets of guide rods. The locking pieces on the pop-up card blocks lock with the guide rods, thus supporting and fixing the drawer box in the vertical direction.

[0031] When the drawer box is taken out of the placement cavity as a whole for movement, the locking piece and the guide rod can be unlocked, and the drawer box can be moved in the vertical direction;

[0032] When the drawer box is disassembled, the reset mechanism cooperates with the transmission mechanism to drive the two sets of pop-up card blocks in the clamping assembly to reset and be stored at the bottom of the drawer box, so that the two sets of pop-up card blocks are separated from the two sets of guide rods.

[0033] Compared with the prior art, the present invention adds a guide rod, a clamping mechanism, a transmission mechanism and a reset mechanism to the original withdrawable power distribution cabinet with a main cabinet body and a drawer box as the main structure;

[0034] 1. When the operator unlocks the drawer box and pulls it out, when the two sets of pop-up card blocks in the clamping mechanism completely leak out of the placement cavity, the two sets of pop-up card blocks extend to both sides in different directions under the elastic force of the transmission mechanism and are clamped on the corresponding guide rods. The locking gears in the pop-up card blocks can lock and fix the pop-up card blocks on the two sets of guide posts. At this time, the fixation of the two sets of pop-up card blocks realizes the vertical fixation of the drawer box and avoids the need for the operator to achieve vertical removal of the drawer box when the drawer box is taken out of the placement cavity as a whole;

[0035] 2. The operator can control the locking member to switch the locking and unlocking states between the pop-up card block and the guide rod. When the pop-up card block and the guide rod are unlocked, the drawer box can be moved vertically to adjust the height of the drawer box, making it easier for the operator to move it to a suitable working height for internal inspection. At the same time, the L-shaped pop-up card block can be completely removed from the drawer box and moved vertically to avoid being blocked by other components on the front panel of the drawer box.

[0036] 3. When the operator needs to disassemble and remove the drawer box, he can operate the reset mechanism and cooperate with the transmission of the transmission mechanism to drive the two sets of pop-up blocks in the clamping assembly to reset and retract, and store them at the bottom of the drawer box and lock them. At this time, the two sets of pop-up blocks are disengaged from the two sets of guide rods, and the drawer box can be freely disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 The figure is a schematic structural diagram of a withdrawable power distribution cabinet and its use method in the present invention.

[0038] Figure 2 This is a schematic diagram of two sets of main cabinets installed in parallel in the present invention.

[0039] Figure 3 For the present invention Figure 1 Schematic diagram of the top view.

[0040] Figure 4 This is a schematic diagram of the bottom structure of the drawer box from the first perspective of the present invention.

[0041] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of point A in the middle.

[0042] Figure 6 For the present invention Figure 4 Enlarged schematic diagram of point B in the middle.

[0043] Figure 7 This is a schematic diagram of the bottom structure of the drawer box in the present invention from the second perspective.

[0044] Figure 8 This is a schematic diagram of the bottom structure of the drawer box in the present invention from the third perspective.

[0045] Figure 9 This is a cross-sectional view of the installation of the limiting wedge block in the present invention.

[0046] In the figure: 1. Main cabinet; 2. Drawer box; 201. Front panel; 202. Guide rail; 2021. Cable routing hole; 3. Guide rod; 301. Fixed rack; 4. Clamping mechanism; 401. Pop-up block; 402. Locking gear; 403. Drive motor; 5. Transmission mechanism; 501. Transmission gear; 502. Movable box; 503. Connecting plate; 504. No. 2 connecting spring; 505. Transmission rack; 6. Reset mechanism Structure; 601, ball screw; 602, reset slider; 603, roller inner nut; 604, control rod I; 605, control rod II; 606, locking cone ring; 607, transition ring; 608, mounting plate; 609, limit pin; 610, No. 3 connecting spring; 7, guide slider; 8, connecting column; 9, No. 1 connecting spring; 10, movable wedge; 11, elastic pull rope; 12, limit wedge; 13, No. 4 connecting spring DETAILED DESCRIPTION

[0047] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods.

[0048] like Figure 1 、 Figure 3 as well as Figure 4 As shown, in an embodiment of the present invention, a withdrawable power distribution cabinet includes:

[0049] The main cabinet 1 has a row of placement cavities vertically formed thereon;

[0050] There are two sets of guide rods 3, which are fixedly mounted on the main cabinet 1 in the vertical direction and located on both sides of the placement cavity;

[0051] The drawer boxes 2 are provided in multiple groups and are slidably mounted in corresponding placement cavities. A clamping mechanism 4, a transmission mechanism 5, and a reset mechanism 6 are fixedly mounted on the bottom of the drawer boxes 2.

[0052] The clamping mechanism 4 is used to clamp and fix on the two sets of guide rods 3 when the drawer box 2 is pulled out of the placement cavity. The clamping mechanism 4 includes two sets of pop-up card blocks 401. The pop-up card blocks 401 are L-shaped, one end of which is slidably mounted on the guide slider 7 at the bottom of the drawer box 2, and the other end is provided with a clamping groove for clamping the guide rod 3, and a locking member for locking the pop-up card block 401 is provided in the clamping groove.

[0053] The two ends of the transmission mechanism 5 are respectively connected to the proximal ends of the two groups of pop-up card blocks 401, and the transmission mechanism 5 elastically supports the two groups of pop-up card blocks 401 to pop out in a mirrored manner;

[0054] The reset mechanism 6 is connected to the clamping mechanism 4 via the transmission mechanism 5 and is used to pull the two groups of pop-up card blocks 401 closer together in a mirrored manner and be stored at the bottom of the drawer box 2.

[0055] like Figure 2 As shown, in an embodiment of the present invention, multiple groups of main cabinets 1 are fixedly connected in sequence, and the close sides of adjacent main cabinets 1 can share a group of guide rods 3. For example, in the present invention, if two groups of main cabinets 1 are selected for use in parallel, three groups of guide rods 3 can be correspondingly selected for fixation, and the number of main cabinets 1 is one group less than the number of guide rods 3.

[0056] like Figure 4 As shown, in this embodiment of the present invention, the locking member is a locking gear 402, which is rotatably mounted in a clamping groove at one end of the pop-up card block 401. When the pop-up card block 401 is engaged with the guide rod 3, the locking gear 402 can be engaged and locked with the fixed rack 301 installed on the vertical section of the guide rod 3.

[0057] Furthermore, the locking gear 402 is driven to rotate by the driving motor 403 on the pop-up block 401. The number of the driving motors 403 in the present invention is preferably two groups, and the two groups of driving motors 403 are coaxially connected to the corresponding locking gears 402. When the drawer box 2 is completely pulled out from the placement cavity, the two groups of driving motors 403 can be turned on to drive the two groups of locking gears 402 to rotate synchronously. The locking gear 402 is engaged with the fixed rack 301 to drive the drawer box 2 to move in the vertical direction, and the vertical height of the drawer box 2 is adjusted.

[0058] like Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 as well as Figure 8 As shown, in the embodiment of the present invention, the transmission mechanism 5 includes a movable box 502, a connecting plate 503, a transmission gear rod 501 and a second elastic member, wherein the movable box 502 is slidably mounted on the bottom of the drawer box 2, one end of the two groups of connecting plates 503 is correspondingly inserted into the two sides of the movable box 502, and the other end is fixedly connected to the near end of the two groups of pop-up card blocks 401, and the two groups of connecting plates 503 are fixedly mounted on the plate surface near the two groups of connecting plates 503. The transmission rack 505 is fixedly mounted on the drawer box 2, and the transmission gear is coaxially mounted on the rod body of one end of the movable box 502. The two sides of the movable gear are meshed with the two groups of transmission racks 505 for transmission. One end of the No. 2 elastic member is fixedly connected to a group of pop-up card blocks 401, and the other end is fixedly connected to the corresponding side of the movable box 502, wherein the No. 2 elastic member is a No. 2 connecting spring 504;

[0059] In the present invention, when the two sets of elastic card blocks are stored at the bottom of the drawer box 2, the second connecting spring 504 is in a compressed state. When the drawer box 2 has not been fully pulled out, the compressed second connecting spring 504 elastically supports the end face of the elastic card block connected to it to abut against the inner wall of the placement cavity. At the same time, the transmission rack 501 and the transmission racks 505 on the two sets of connecting plates 503 drive the elastic card block on the other side to abut against the inner wall of the other side of the placement cavity.

[0060] Furthermore, the reset mechanism 6 includes a ball screw 601, a reset slider 602, a limit latch 609, a control rod I 604 and a control rod II 605, wherein the ball screw 601 is rotatably mounted on the bottom of the drawer box 2, and is provided with a limit cavity for sliding insertion of one end of the transmission gear rod 501. In the present invention, in order to ensure that the ball screw 601 drives the transmission gear rod 501 to rotate coaxially, a limit convex strip is provided on the side of the ball screw 601, and the limit convex strip is slidingly connected in the limit cavity. The reset slider 602 is slidably mounted on the bottom of the drawer box 2, and a roller inner nut 603 for screwing the ball screw 601 is fixedly installed in the central mounting hole, and the limit latch 609 is passed through The third elastic member is elastically mounted on the bottom of the drawer box 2, the control rod I 604 is slidably mounted on the bottom of the drawer box 2, and one end thereof extends out of the front panel 201 of the drawer box 2, and the other end is fixedly connected to the side of the reset slider 602, the control rod I 604 is fixedly mounted with a locking cone ring 606, the control rod II 605 is slidably mounted on the bottom of the drawer box 2, and one end thereof extends out of the front panel 201 of the drawer box 2, and the other end is fixedly mounted with a transition ring 607 through a mounting plate 608, the size of the transition ring 607 is not less than the bottom ring size of the locking cone ring 606, and the transition ring 607 can be magnetically fixed to the end surface of the bottom ring of the locking cone ring 606, wherein the third elastic member is a third connecting spring 610;

[0061] As described above, in the present invention, when it is necessary to operate the reset mechanism 6 to drive the two groups of extended pop-up card blocks 401 to be stored and reset to the bottom of the drawer, the operator presses the control rod Ⅰ 604 to move outward, which drives the reset slider 602 fixedly connected to the end of the control rod Ⅰ 604 to move linearly in the same direction. At the same time, the nut 603 fixedly installed in the roller of the reset slider 602 is connected to the ball screw 601, driving the ball screw 601 to rotate. The ball screw 601 rotates, driving the transmission gear rod 501 in the transmission mechanism 5 to rotate coaxially, and the transmission drives the two groups of elastic card blocks. The block is reset and stored at the bottom of the drawer box 2, and when the control rod I 604 moves to the preset position, the limit latch 609 at the bottom of the drawer box 2 contacts the locking cone ring 606. After the locking cone ring 606 squeezes the limit latch 609 and moves to the other side of the limit latch 609, when the operator releases the control rod I 604, the elastic force of the second connecting spring 504 extends and the limit latch 609 abuts against the locking cone ring 606 to lock the reset slider 602, thereby fixing the elastic block. At this time, the operator can control the storage box to be inserted into the corresponding installation cavity;

[0062] On the other hand, when the operator completes the insertion of the drawer box 2 or needs to re-clamp the drawer box 2 on the two sets of guide rods 3, the operator can pull the control rod II 605 to drive the transition ring 607 to abut against the end face of the bottom ring of the locking cone ring 606 and be magnetically fixed to the locking cone ring 606. When the transition ring 607 is further moved by the control rod II 605, the transition ring 607 squeezes the limit latch 609 to retract accordingly. The moving stroke of the transition ring 607 is positioned by the inner wall of the grip on the front panel 201. When the end of the control rod II 605 contacts the inner wall of the grip, the side of the transition ring 607 abuts against the end of the limit latch 609, and the limit latch 609 releases the locking limit of the locking cone ring 606.

[0063] When the drawer box 2 is in an environment where it is not placed and the two groups of elastic blocks are not squeezed to the side limit, at this time, after relaxing the control rod II 605, the reset slider 602 drives the control rod I 604 to reset and reinsert into the drawer box 2 under the elastic force of the second connecting spring 504, and the two groups of elastic blocks are driven to extend to both sides by the transmission machine. When the drawer box 2 is in an environment where the placement cavity is placed and the two groups of elastic blocks are squeezed to the two sides of the placement cavity, after relaxing the control rod II 605, the reset slider 602 and the elastic block remain stationary, and when the drawer box 2 is pulled out of the placement cavity until the reset slider 602 is completely leaked, the two groups of elastic blocks are driven to extend to both sides by the transmission machine.

[0064] like Figure 4 、 Figure 6 as well as Figure 9As shown, in the embodiment of the present invention, the two groups of guide sliders 7 are slidably installed in the corresponding guide rails 202 on both sides of the bottom of the drawer box 2, and one end of the guide slider 7 is fixedly connected to the movable wedge 10 installed on the guide rail 202 through the connecting column 8, and the movable wedge 10 is elastically connected to the guide rail 202 through a No. 1 elastic member, and a limiting wedge 12 for positioning the sliding stroke of the movable wedge 10 is installed on the guide rail 202, and the limiting wedge 12 is connected to the reset mechanism 6 through a connecting member, wherein the No. 1 elastic member is a No. 1 connecting member. Spring 9, in the present invention, when the two groups of elastic card blocks are connected to the two groups of guide rods 3, when the drawer box 2 is further pulled out, the drawer box 2 and the two groups of elastic card blocks are relatively displaced in the horizontal direction, and the two groups of No. 1 connecting springs 9 are in a compressed deformation state, and the movable wedge 10 slides along the guide rail 202. When the drawer box 2 is completely pulled out of the placement cavity and has moved a preset stroke, the limiting wedge 12 limits the movable wedge 10 to prevent the operator from releasing the drawer box 2 and the elastic force of the No. 1 connecting spring 9 pulling the drawer box 2 back to the placement cavity;

[0065] Furthermore, the limiting wedge block 12 is slidably installed in the guide hole opened on the guide slide 202, and is elastically connected to the guide hole through the No. 4 elastic member, and the connecting member is an elastic pull rope 11, and the elastic pull rope 11 passes through the wiring hole 2021 on the guide slide 202, one end of the elastic pull rope 11 is fixedly connected to the bottom of the limiting wedge block 12, and the other end is fixedly connected to the reset slider 602, wherein the No. 4 elastic member is a No. 4 connecting spring 13. Specifically, when the operator pulls the control rod Ⅰ604, driving the reset slider 602 to retract the elastic block, the elastic pull rope 11 pulls the limiting wedge block 12 back into the guide hole and disengages from the movable wedge block 10. At this time, the movable wedge block 10 is supported by the elastic force of the No. 1 connecting spring 9, driving the two groups of elastic blocks to synchronously reset and move toward the direction close to the front panel 201 of the drawer box 2.

[0066] At the same time, the present invention also provides a method for using a power distribution cabinet, which is applied to the above-mentioned withdrawable power distribution cabinet, comprising:

[0067] When the drawer box is pulled out, the two groups of pop-up card blocks 401 in the clamping assembly at the bottom of the drawer box 2 leak out of the placement cavity of the main cabinet 1, and are supported by the elastic assembly of the transmission assembly to move to both sides and engage with the corresponding two groups of guide rods 3, and the locking pieces on the pop-up card blocks 401 are locked with the guide rods 3 to support and fix the drawer box 2 in the vertical direction; when the drawer box 2 is taken out of the placement cavity as a whole for movement, the locking pieces and the guide rods 3 can be unlocked, and the drawer box 2 can be moved in the vertical direction; when the drawer box 2 is disassembled, the reset mechanism 6 can cooperate with the transmission mechanism 5 to drive the two groups of pop-up card blocks 401 in the clamping assembly to reset and be stored at the bottom of the drawer box 2, so that the two groups of pop-up card blocks 401 are separated from the two groups of guide rods 3;

[0068] Specifically, the present invention is used in the following scenarios:

[0069] Scenario 1: When taking the drawer box 2 out of the placement cavity;

[0070] The operator holds the handle on the front panel 201 of the corresponding drawer box 2 and applies force to the outside to pull the drawer box 2 out of the placement cavity. During the pulling-out process, the control rod I 604 and the control rod II 605 in the reset mechanism 6 are both in the pulled-out state, and the transition ring 607 is magnetically fixedly installed at the bottom of the locking cone ring 606. The limit latch 609 abuts against the side of the transition ring 607. When the two groups of pop-up blocks 401 in the clamping mechanism 4 are completely leaked out of the placement cavity, the two groups of pop-up blocks 401 are supported by the elastic force of the No. 2 connecting spring 504 and extend to both sides in different directions. The control rod I 604 and the control rod II 605 slide synchronously with the reset slider 602 to the back side of the drawer box 2, and the two groups of pop-up blocks 401 is connected to the corresponding guide rod 3, and the locking gear 402 in the pop-up card block 401 can lock and fix the pop-up card block 401 on the two sets of guide columns. At this time, the drawer box 2 is fixed in the vertical direction by the fixation of the two sets of pop-up card blocks 401. When the drawer box 2 is further pulled out, the movable wedge 10 in the guide rail 202 slides along the guide rail 202. When the drawer box 2 is completely pulled out of the placement cavity and displaced by a preset stroke, the limiting wedge 12 limits the movable wedge 10 to fix the drawer box 2 in the horizontal direction, and further presses the control rod II 605 to drive the transition ring 607 at the end of the control rod II 605 to disengage from the locking cone ring 606;

[0071] Scene 2: After the drawer box 2 is taken out, it is moved vertically;

[0072] The two sets of driving motors 403 can be turned on to drive the two sets of locking gears 402 to rotate synchronously, and the locking gears 402 are engaged with the fixed rack 301 to drive the drawer box 2 to move in the vertical direction, so as to adjust the vertical height of the drawer box 2;

[0073] Scenario 3: When the drawn drawer box 2 needs to be disassembled;

[0074] The operator pulls the control rod I 604 to move outward, which drives the reset slider 602 at the end of the control rod I 604 to move synchronously. The roller inner nut 603 in the reset slider 602 is connected to the ball screw 601, driving the ball screw 601 and the transmission gear rod 501 to rotate coaxially. The transmission drives the two sets of elastic card blocks to reset and be stored at the bottom of the drawer box 2. After the locking cone ring 606 on the control rod I 604 moves to the other side of the limit latch 609, when the operator releases the control rod I 604, the elastic force of the second connecting spring 504 is extended and the limit latch 609 is in contact with the locking cone ring 606, locking the reset slider 602, thereby fixing the elastic card block;

[0075] At the same time, as the reset slider 602 slides, the elastic pull rope 11 pulls the limit wedge 12 back into the guide hole and disengages it from the movable wedge 10. At this time, the movable wedge 10 is supported by the elastic force of the No. 1 connecting spring 9, driving the two sets of elastic card blocks to synchronously reset and move toward the front panel 201 of the drawer box 2;

[0076] Scenario 4: After the maintenance drawer box 2 is reinserted into the placement cavity;

[0077] The operator pulls the control rod II 605, driving the transition ring 607 to be magnetically fixed to the locking cone ring 606, and when it moves further, the transition ring 607 squeezes the limit pin 609 to retract accordingly, releasing the locking ability of the limit pin 609 on the locking cone ring 606.

[0078] In summary, the present invention adds a guide rod 3, a clamping mechanism 4, a transmission mechanism 5 and a reset mechanism 6 to the original withdrawable power distribution cabinet with a main cabinet body 1 and a drawer box 2 as the main structure;

[0079] 1. When the operator unlocks the drawer box 2 and pulls it out, when the two sets of pop-up card blocks 401 in the clamping mechanism 4 are completely leaked out of the placement cavity, the two sets of pop-up card blocks 401 are extended to both sides in different directions under the elastic force of the transmission mechanism 5 and are clamped on the corresponding guide rods 3, and the locking gears 402 in the pop-up card blocks 401 can lock the pop-up card blocks 401 to the two sets of guide posts. At this time, the fixation of the two sets of pop-up card blocks 401 realizes the vertical fixation of the drawer box 2, and avoids the need for the operator to realize the vertical removal of the drawer box 2 when the drawer box 2 is taken out of the placement cavity as a whole;

[0080] 2. The operator can control the locking member to switch the locking and unlocking states between the pop-up card block 401 and the guide rod 3. When the pop-up card block 401 and the guide rod 3 are unlocked, the drawer box 2 can be moved in the vertical direction to adjust the height of the drawer box 2, so that the operator can move it to a suitable working height to inspect the interior thereof. At the same time, the L-shaped pop-up card block 401 can be completely removed from the drawer box 2 and move in the vertical direction to avoid being blocked by other components on the front panel 201 of the drawer box 2.

[0081] 3. When the operator needs to disassemble and remove the drawer box 2, he can operate the reset mechanism 6 and cooperate with the transmission of the transmission mechanism 5 to drive the two groups of pop-up blocks 401 in the clamping assembly to reset and retract, and store them at the bottom of the drawer box 2 and lock them. At this time, the two groups of pop-up blocks 401 are disengaged from the two groups of guide rods 3, and the drawer box 2 can be freely disassembled.

[0082] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A withdrawable power distribution cabinet, characterized in that: include: A main cabinet (1) is vertically provided with a row of placement cavities; Two sets of guide rods (3) are fixedly mounted on the main cabinet (1) in a vertical direction and are located on both sides of the placement cavity; The drawer boxes (2) are provided in multiple groups and are slidably mounted in corresponding placement cavities. A clamping mechanism (4), a transmission mechanism (5) and a reset mechanism (6) are fixedly mounted on the bottom of the drawer boxes (2); The clamping mechanism (4) is used to clamp and fix the drawer box (2) on the two sets of guide rods (3) when the drawer box (2) is pulled out of the placement cavity. The clamping mechanism (4) includes two sets of pop-up card blocks (401). The pop-up card blocks (401) are L-shaped, one end of which is slidably mounted on the guide slider (7) at the bottom of the drawer box (2), and the other end is provided with a clamping groove for clamping the guide rod (3), and a locking piece for locking the pop-up card block (401) is provided in the clamping groove. The two ends of the transmission mechanism (5) are respectively connected to the proximal ends of the two groups of pop-up card blocks (401) for transmission, and the transmission mechanism (5) elastically supports the two groups of pop-up card blocks (401) to pop out in a mirror-image manner; The reset mechanism (6) is connected to the clamping mechanism (4) through the transmission mechanism (5) and is used to pull the two groups of pop-up card blocks (401) to move closer in a mirrored manner and be stored at the bottom of the drawer box (2); The transmission mechanism (5) comprises a movable box (502), a connecting plate (503), a transmission gear rod (501) and a second elastic member; wherein the movable box (502) is slidably mounted on the bottom of the drawer box (2); one end of the two groups of connecting plates (503) is correspondingly inserted into the two sides of the movable box (502), and the other end is fixedly connected to the adjacent ends of the two groups of pop-up card blocks (401), and the adjacent plate surfaces of the two groups of connecting plates (503) are fixedly mounted with a transmission rack (505); the transmission gear rod (501) is rotatably mounted on the drawer box (2), and the end of the rod inserted into the movable box (502) is coaxially mounted with a transmission gear, and the two sides of the movable gear are meshed with the two groups of transmission racks (505) for transmission; one end of the second elastic member is fixedly connected to a group of pop-up card blocks (401), and the other end is fixedly connected to the corresponding side of the movable box (502); The reset mechanism (6) comprises a ball screw (601), a reset slider (602), a limit latch (609), a control rod I (604) and a control rod II (605); wherein the ball screw (601) is rotatably mounted on the bottom of the drawer box (2), and a limit cavity is provided therein for one end of the transmission gear rod (501) to be inserted into the limit position and slide therein, and the ball screw (601) drives the transmission gear rod (501) to rotate coaxially; the reset slider (602) is slidably mounted on the bottom of the drawer box (2) The bottom portion has a roller inner nut (603) for spirally connecting the ball screw (601) fixedly installed in its central mounting hole; the limit pin (609) is elastically mounted on the bottom of the drawer box (2) through a third elastic member; the control rod I (604) is slidably mounted on the bottom of the drawer box (2), and one end thereof extends out of the front panel (201) of the drawer box (2), and the other end is fixedly connected to the side of the reset slider (602); a locking cone ring (606) is fixedly mounted on the control rod I (604); The control rod II (605) is slidably mounted on the bottom of the drawer box (2), and one end thereof extends out of the front panel (201) of the drawer box (2), and the other end is fixedly mounted with a transition ring (607) through a mounting plate (608). The size of the transition ring (607) is not less than the size of the bottom ring of the locking cone ring (606), and the transition ring (607) can be magnetically fixed on the end face of the bottom ring of the locking cone ring (606).

2. A withdrawable power distribution cabinet according to claim 1, characterized in that: A plurality of groups of main cabinets (1) are fixedly connected in sequence, and the adjacent sides of adjacent main cabinets (1) can share a group of guide rods (3).

3. The withdrawable power distribution cabinet according to claim 1, characterized in that: The locking member is a locking gear (402), which is rotatably mounted in a clamping groove at one end of the pop-up block (401) and is engaged and locked with a fixed rack (301) mounted on the vertical section of the guide rod (3).

4. A withdrawable power distribution cabinet according to claim 3, characterized in that: The locking gear (402) is driven to rotate by a driving motor (403) on the pop-up card block (401).

5. The withdrawable power distribution cabinet according to claim 1, characterized in that: The two groups of guide sliders (7) are slidably installed in the corresponding guide rails (202) on both sides of the bottom of the drawer box (2), and one end of the guide slider (7) is fixedly connected to the movable wedge (10) installed on the guide rail (202) through a connecting column (8), and the movable wedge (10) is elastically connected to the guide rail (202) through a No. 1 elastic member, and a limiting wedge (12) for positioning the sliding stroke of the movable wedge (10) is installed on the guide rail (202), and the limiting wedge (12) is transmission-connected to the reset mechanism (6) through a connecting member.

6. The withdrawable power distribution cabinet according to claim 5, characterized in that: The limiting wedge block (12) is slidably installed in a guide hole opened on the guide rail (202) and is elastically connected in the guide hole through a fourth elastic member. The connecting member is an elastic pull rope (11). The elastic pull rope (11) passes through a wiring hole (2021) on the guide rail (202), one end of which is fixedly connected to the bottom of the limiting wedge block (12), and the other end is fixedly connected to the reset slider (602).

7. A method for using a power distribution cabinet, characterized in that: A withdrawable power distribution cabinet according to any one of claims 1 to 6, comprising: When the drawer box is being pulled out, the two groups of pop-up card blocks (401) in the clamping assembly at the bottom of the drawer box (2) leak out of the placement cavity of the main cabinet (1), and are supported by the elastic assembly of the transmission assembly to move to both sides, and engage with the corresponding two groups of guide rods (3), and the locking pieces on the pop-up card blocks (401) are locked with the guide rods (3), thereby supporting and fixing the drawer box (2) in the vertical direction; When the drawer box (2) is taken out of the placement cavity as a whole for movement, the locking member and the guide rod (3) can be unlocked, and the drawer box (2) can be moved in a vertical direction; When the drawer box (2) is being disassembled, the reset mechanism (6) can cooperate with the transmission mechanism (5) to drive the two groups of pop-up card blocks (401) in the clamping assembly to reset and be stored at the bottom of the drawer box (2), so that the two groups of pop-up card blocks (401) are separated from the two groups of guide rods (3).

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