Low-voltage draw-out switch cabinet

Abstract

The invention relates to the technical field of switch cabinets, and particularly discloses a low-voltage draw-out switch cabinet which comprises a cabinet body, drawers and a traction assembly, a plurality of containing grooves are formed in the cabinet body, sliding grooves are formed in the side walls of the containing grooves, inserting plates are arranged in the containing grooves, inserting holes are formed in the inserting plates, and the drawers are arranged in the containing grooves in a sliding fit mode. The drawer can slide along the sliding grooves, components are arranged in the drawer, a plug is arranged on the outer wall of the drawer, the plug can be electrically connected with the jacks, the traction assembly comprises a pull rope, a pull plate and a first elastic piece, mounting bases are arranged on the two side walls of the containing groove, a roller is rotationally matched with each mounting base, the pull rope is wound on the rollers, and the pull rope is distributed on the drawer in a U shape. The pull rope penetrates through the front end of the drawer, the pull plate is connected with the drawer through a first elastic piece, the pull plate is fixedly connected with the pull rope, and the two ends of the pull rope penetrate through the pull plate and are connected with the tail end of the drawer; the low-voltage draw-out switch cabinet can prevent the drawer from inclining downwards when the drawer is opened.

Description

Technical Field

[0001] The invention relates to the technical field of switch cabinets, and in particular to a low-voltage drawable switch cabinet. Background Art

[0002] The withdrawable switch cabinet is made of steel plate to form a closed shell. Its internal structure is usually divided into a busbar room, a functional unit room and a cable room. The busbar room and the cable room are usually located in the closed shell. The closed shell has multiple drawers, and the functional unit room is located in the drawer. Each functional unit room is isolated from each other by a grounded metal plate or a functional board made of plastic to ensure safety and prevent the spread of faults. The biggest feature of the withdrawable switch cabinet is its drawer-type functional unit. These functional units can be easily withdrawn and inserted, which is convenient for maintenance and replacement. At the same time, the drawer unit is usually equipped with a reliable mechanical interlocking device to ensure safety and stability during operation.

[0003] A Chinese patent with authorization announcement number CN118630626B discloses a low-voltage withdrawable switch cabinet that is easy to protect, which includes a cabinet shell, a support plate is arranged inside the cabinet shell, and a withdrawable part is installed on the support plate; a maintenance room and a heat dissipation room are arranged on both sides of the cabinet shell, a heat conduction plate is arranged between the heat dissipation room and the cabinet shell, a withdrawable part is arranged inside the cabinet shell, a cooling pipe is arranged on the side of each withdrawable part, and the two ends of the cooling pipe are respectively connected with connecting side pipes, and a spraying part is arranged in the heat dissipation chamber; a cleaning mechanism is arranged inside the maintenance chamber, and the cleaning mechanism is used to clean the inside of the withdrawable part, and a maintenance mechanism is arranged inside the maintenance chamber, and the maintenance mechanism is used to clear and maintain the adsorption tube.

[0004] The above patent utilizes water flow to circulate and pump through a circulating pumping device at the bottom of the heat dissipation chamber. The water flow is transmitted to the connecting side pipe through the transmission pipe 2, and the heat dissipation circulation is completed through the cooling pipe. The cooling pipe is surrounded by the side of the extraction part and can take away heat from different directions to achieve the purpose of heat dissipation.

[0005] However, since the drawer containing various components is heavy, after the drawer is pulled out, the front end of the drawer will tilt downward under the action of gravity, which can easily squeeze the slide rails in the cabinet and cause the slide rails to deform, thereby affecting the normal use of the drawer. Summary of the invention

[0006] The present invention provides a low-voltage drawable switch cabinet, aiming to solve the problem in the related art that after the drawer is drawn out, the front end of the drawer tilts downward, causing deformation of the slide rail.

[0007] The low-voltage drawable switch cabinet of the present invention comprises: a cabinet body, a drawer and a traction assembly; The cabinet body is provided with a plurality of receiving grooves, the side walls of the receiving grooves are provided with sliding grooves, the receiving grooves are provided with plug boards, and the plug boards are provided with plug holes; The drawer is slidably fitted in the receiving groove, and the drawer can slide along the slide groove, components are installed in the drawer, and a plug is provided on the outer wall of the drawer, and the plug can be electrically connected to the socket; A traction assembly is also provided, which includes a pull rope, a pull plate and a first elastic member. Mounting seats are provided on both side walls of the accommodating groove, and each mounting seat is rotatably matched with a roller. The pull rope is wound around the roller. The pull rope is distributed in a U shape on the drawer, and the pull rope passes through the front end of the drawer. The pull plate is connected to the drawer through the first elastic member, and the pull plate is fixedly connected to the pull rope. Both ends of the pull rope pass through the pull plate and are connected to the rear end of the drawer.

[0008] Beneficial effect: When the drawer is pulled out, the first elastic member applies a downward pulling force to the pull plate, so that the pull plate pulls the pull rope, the pull rope is tightened and applies an upward pulling force to the drawer, thereby reducing the influence of gravity on the drawer and preventing the drawer from tilting downward and causing the drawer to be squeezed and deformed.

[0009] Preferably, the drawer is provided with a self-locking component, and the self-locking component includes a rotating block, a handle and a first limit block, the rotating block is rotatably fitted on the inner wall of the front end side wall of the drawer, the handle is rotatably fitted on the outer wall of the front end side wall of the drawer, the handle passes through the front end side wall of the drawer and is connected to the rotating block, the pull rope passes through the rotating block, the first limit block is arranged on the bottom surface of the pull plate, the side wall of the accommodating groove is provided with a self-locking rod, the self-locking rod is provided with a plurality of self-locking grooves spaced apart, and the first limit block can extend into the self-locking groove.

[0010] The effect is that the first limit block extends into the self-locking groove to fix the drawer and prevent the drawer from shaking.

[0011] Preferably, the side wall of the first limit block close to the rear end of the drawer is a curved structure, the first limit block is connected to the pull plate through a second elastic member, and the first limit block can make a sound when colliding with the self-locking rod.

[0012] The effect is that when maintenance personnel are repairing components in the switch cabinet at the back of the cabinet, the drawer in the front will make a sound during the closing process. The alarm can remind the maintenance personnel that the drawer is closed, preventing the circuit from being connected due to the drawer being closed, thereby preventing safety accidents.

[0013] Preferably, a second limit block is provided at the bottom end of the drawer, and the side wall of the second limit block close to the rear end of the drawer is a curved structure. The second limit block is connected to the drawer through a third elastic member. A sliding frame is also provided on the second limit block, and a sliding rod is provided on the rotating block. The sliding rod can rotate along the circumferential direction of the rotating block, and the sliding rod can extend into the sliding frame and stop with the top end of the sliding frame. The second limit block can extend out of the drawer, and a limit groove is provided in the accommodating groove, and the second limit block can extend into the limit groove.

[0014] The effect is that the second limiting block extends into the limiting groove, thereby fixing the drawer and preventing the drawer from accidentally opening when closed.

[0015] Preferably, an elastic connecting rod is provided on the plug plate, and a buffer wheel is provided at the end of the elastic connecting rod, and the buffer wheel can abut against the pull rope.

[0016] The effect is that during the closing process of the drawer, the pull rope first stops against the buffer wheel, and the buffer wheel compresses the elastic connecting rod, thereby preventing the drawer from violently hitting the cabinet body during the closing process, thereby increasing the service life of the cabinet body and the drawer.

[0017] Preferably, a first gear and a second gear are respectively provided on both sides of the buffer wheel, a first stop block is slidably fitted on the first gear, a second stop block is slidably fitted on the second gear, the first stop block is elastically connected to the first gear, the second stop block is elastically connected to the second gear, the first stop block and the second stop block are symmetrically distributed, an accommodating space can be formed between the first stop block, the second stop block and the buffer wheel, the pull rope can enter the accommodating space, a driving tooth groove is provided on the cabinet body, and the first gear and the second gear are meshed with the driving tooth groove.

[0018] Preferably, the elastic connecting rod is provided with a first sliding groove and a second sliding groove, the first sliding groove and the second sliding groove are obliquely distributed, the first stopper is provided with a first shift block, and the second stopper is provided with a second shift block, the first shift block can slide in the first sliding groove, and the second shift block can slide in the second sliding groove, thereby being able to push the first stopper and the second stopper to move closer to or away from each other.

[0019] Preferably, the plug plate can slide in the cabinet, a positioning rod is provided at the rear end of the drawer, a positioning hole is provided on the plug plate, and the positioning rod can extend into the positioning hole.

[0020] By adopting the above technical solution, the beneficial effects of the present invention are: According to the low-voltage pull-out switch cabinet of the present invention, when the drawer is pulled out, the first elastic member applies a downward pulling force to the pull plate, so that the pull plate pulls the pull rope, the pull rope is tensioned and applies an upward pulling force to the drawer, thereby reducing the influence of gravity on the drawer and preventing the drawer from tilting downward, causing the drawer to be squeezed and deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of a low-voltage withdrawable switch cabinet according to an embodiment of the present invention.

[0022] Figure 2 It is a schematic diagram of the coordination of drawers and cabinets in an embodiment of the present invention.

[0023] Figure 3 Schematic diagram of the distribution of the draw cords according to an embodiment of the present invention.

[0024] Figure 4 It is a schematic diagram of the pull plate structure of an embodiment of the present invention.

[0025] Figure 5 It is a schematic diagram of the cooperation between the rotating block and the handle according to an embodiment of the present invention.

[0026] Figure 6 It is a schematic diagram of the second limit block structure of an embodiment of the present invention.

[0027] Figure 7 It is a schematic diagram of the plug board structure of an embodiment of the present invention.

[0028] Figure 8 It is a schematic structural diagram of an elastic connecting rod and a buffer wheel according to an embodiment of the present invention.

[0029] Fig. 9 2 is a schematic diagram of a drawer in a closed state according to an embodiment of the present invention.

[0030] Fig.10 yes Fig. 9 Enlarged view of point A in the middle.

[0031] Reference numerals: 1. Cabinet; 2. Drawer; 201. Matching plate; 31. Pull rope; 311. First section; 312. Second section; 32. Pull plate; 33. First elastic member; 4. Mounting seat; 41. Roller; 51. Rotating block; 52. Handle; 53. First limit block; 6. Self-locking rod; 7. Second limit block; 8. Sliding frame; 9. Sliding rod; 10. Elastic connecting rod; 101. First slide groove; 102. Second slide groove; 11. Buffer wheel; 12. First gear; 13. Second gear; 14. First stop block; 15. Second stop block; 16. First shift block; 17. Second shift block; 18. Positioning rod; 19. Insert plate; 191. Positioning hole; 20. Insert socket; 21. Plug. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0033] like Figures 1 to 9 As shown, the low-voltage withdrawable switch cabinet of the present invention comprises: a cabinet body 1, a drawer 2 and a traction component.

[0034] Specifically, Figures 1 to 3 , Figure 7 As shown, the cabinet 1 is a closed shell of a withdrawable switch cabinet in conventional technology. The cabinet 1 is provided with a plurality of receiving slots, and a drawer 2 is slidably fitted in each receiving slot. Each drawer 2 is equipped with components, and a plurality of heat dissipation holes are arranged at intervals at the bottom of the drawer 2. A plug 21 is arranged at the rear end of the drawer 2, and the components are electrically connected to the plug 21. A plug plate 19 is slidably fitted in the receiving slot, and a plug hole 20 is arranged on the plug plate 19, and the plug 21 can be inserted into the plug hole 20. A matching plate 201 is arranged at the bottom of the rear end of the drawer 2, and a guide groove is arranged on the side wall of the receiving slot. The matching plate 201 is slidably fitted in the guide groove. When the drawer 2 is opened or closed, the matching plate 201 moves forward or backward along the guide groove.

[0035] like Figure 2 and Figure 3 As shown, the traction assembly includes a pull rope 31, a pull plate 32 and a first elastic member 33. Mounting seats 4 are provided on both side walls of the accommodating groove. The two mounting seats 4 are symmetrically distributed and located above the drawer 2. The mounting seats 4 are close to the front end of the drawer 2. Rollers 41 are rotatably fitted on the mounting seats 4. The pull rope 31 is a steel wire rope. The pull rope 31 is U-shaped and distributed above the drawer 2. The front end of the pull rope 31 passes through the front end of the drawer 2, and the pull rope 31 is respectively wound around the two rollers 41. The pull plate 32 is arranged above the matching plate 201, and the first elastic member 33 is located between the pull plate 32 and the matching plate 201. The first elastic member 33 is an elastic column, one end of which is fixedly connected to the pull plate 32, and the other end of which is fixedly connected to the matching plate 201. Both ends of the pull rope 31 pass through the pull plate 32 and are fixedly connected to the matching plate 201. The pull plate 32 and the pull rope 31 are fixedly connected. The pull plate 32 divides the pull rope 31 into two first sections 311 and one second section 312. The pull rope 31 from the end of the pull rope 31 to the connection between the pull rope 31 and the pull plate 32 is the first section 311, and the second section 312 is located between the two first sections 311. The first elastic column applies a downward pulling force to the pull plate 32, and the pull plate 32 pulls the drawer rope 31, so that the second section 312 is tightened, and the drawer rope 31 applies an upward pulling force to the drawer 2. Pulling the drawer 2 by the drawer rope 31 can reduce the gravity on the drawer 2, thereby preventing the front end of the drawer 2 from tilting downward under the action of gravity when the drawer 2 is pulled out.

[0036] like Figures 2 to 5As shown, the drawer 2 is also provided with a self-locking assembly, which includes a rotating block 51, a handle 52 and a first stopper 53. The rotating block 51 is rotatably matched on the inner wall of the front end of the drawer 2. The rotating block 51 is a cylindrical structure. The handle 52 is rotatably matched on the outer wall of the front end of the drawer 2 through a torsion spring. The handle 52 passes through the drawer 2 and is fixedly connected to the rotating block 51. By rotating the handle 52, the rotating block 51 can be driven to rotate. The pull rope 31 passes through the rotating block 51. The rotating block 51 can wrap the pull rope 31 around the rotating block 51 during the rotation process. The first stopper 53 is arranged at the bottom end of the pull plate 32. The first stopper 53 is elastically connected to the pull plate 32 through a second elastic member. The first stopper 53 can move up and down, and the rear end of the first stopper 53 is a curved surface structure. A self-locking rod 6 is arranged on the side wall of the accommodating groove. The self-locking rod 6 is provided with a plurality of self-locking grooves. The plurality of self-locking grooves are spaced apart along the front and rear directions, and the first stopper 53 can extend into the self-locking groove.

[0037] like Figure 3 , Figure 5 and Figure 6 As shown, a second stop block 7 is provided at the bottom of the drawer 2, the rear side wall of the second stop block 7 is an arc surface structure, the second stop block 7 is close to the front end of the drawer 2, the second stop block 7 is elastically connected to the drawer 2 through a third elastic member, the third elastic member is a spring, the second stop block 7 passes through the bottom surface of the drawer 2 and extends downward, the second stop block 7 and the drawer 2 are slidably matched, the top of the second stop block 7 is provided with a sliding frame 8, the sliding frame 8 is a frame structure, and a sliding rod 9 is provided on the rotating block 51, and the sliding rod 9 can extend into the sliding frame 8 and stop against the top of the sliding frame 8. A stop groove is provided in the accommodating groove, and the second stop block 7 can extend into the stop groove, so as to fix the drawer 2. When the rotating block 51 rotates, the sliding rod 9 rotates along the circumference of the rotating block 51. When the sliding rod 9 rotates upward from the bottom end of the rotating block 51, it will drive the sliding frame 8 to move upward. The sliding frame 8 drives the second limit block 7 to move upward, the third elastic member is stretched, and the second limit block 7 is retracted into the drawer 2. When the sliding rod 9 rotates downward from the top end of the rotating block 51, the third elastic member contracts, thereby causing the second limit block 7 to extend out of the drawer 2.

[0038] like Figure 2 , Figure 7 and Figure 8As shown, an elastic connecting rod 10 is provided on the plug plate 19, and a buffer wheel 11 is rotatably matched at the end of the elastic connecting rod 10, and the buffer wheel 11 can stop against the first section 311, and a first gear 12 and a second gear 13 are provided on both sides of the buffer wheel 11, respectively, and the diameters of the first gear 12 and the second gear 13 are larger than the diameter of the buffer wheel 11, and a first stopper 14 is provided on the first gear 12, and the first stopper 14 is elastically connected to the first gear 12 through a first spring, and the first stopper 14 and the first gear 12 are slidably matched, and a second stopper 15 is provided on the second gear 13, and the second stopper 15 and the second gear 13 are elastically connected through a second spring, and the second stopper 15 and the second gear 13 are slidably matched. The outer wall of the first stopper 14 is a slope structure, and the second stopper 15 has the same structure as the first stopper 14, and the first stopper 14 and the second stopper 15 are symmetrically distributed. An accommodation space is formed between the first block 14 and the second block 15 and the side wall of the buffer wheel 11, and the pull rope 31 can pass over the first block 14 and the second block 15 and enter the accommodation space. A driving rod is provided on the accommodation groove, and the driving rod is located below the elastic connecting rod 10 and is parallel to the elastic connecting rod 10 and spaced apart. The driving rod is provided with a driving tooth groove, and the driving tooth groove is meshed with the first gear 12 and the second gear 13. The elastic connecting rod 10 is provided with a first slide groove 101 and a second slide groove 102, and the first slide groove 101 and the second slide groove 102 are both obliquely distributed on the top surface of the elastic connecting rod 10, and the first slide groove 101 and the second slide groove 102 are symmetrically distributed, thereby forming a trumpet-shaped structure, and the large diameter end of the trumpet-shaped structure is located at the rear end, and the small diameter end of the trumpet-shaped structure is located at the front end. The first block 14 is fixedly connected with a first shift block 16 , the second block 15 is fixedly connected with a second shift block 17 , the first shift block 16 can extend into the first slide groove 101 , the second shift block 17 can extend into the second slide groove 102 , the first shift block 16 can slide along the first slide groove 101 , the second shift block 17 can slide along the second slide groove 102 .

[0039] like Figure 3 and Figure 7 As shown, a positioning rod 18 is provided on the rear side wall of the drawer 2, and the length of the positioning rod 18 is greater than the length of the socket 20. A positioning hole 191 is provided on the plug plate 19, and the positioning rod 18 can extend into the positioning hole 191, thereby positioning the plug plate 19, and then aligning the plug 21 with the corresponding socket 20.

[0040] According to the low-voltage draw-out switch cabinet of the embodiment of the present invention, when the drawer 2 is closed, the second limit block 7 extends into the limit groove to prevent the drawer 2 from sliding out of the cabinet body 1. When the drawer 2 needs to be pulled out, the handle 52 is rotated, and the handle 52 drives the rotating block 51 to rotate. The sliding rod 9 rotates synchronously with the rotating block 51, and the sliding rod 9 rotates upward from the bottom end of the rotating block 51, and drives the sliding frame 8 to move upward. The sliding frame 8 drives the second limit block 7 to move upward, and the second limit block 7 is separated from the limit groove and stored in the drawer 2; the rotation of the rotating block 51 will also cause the second section 312 to be wound around the rotating block 51, and the rotating block 51 pulls the pull plate 32 upward through the pull rope 31, so that the first limit block 53 The height is higher than the self-locking rod 6 to prevent the first limit block 53 from contacting the self-locking rod 6, causing the self-locking rod 6 to hinder the drawer 2 from being pulled out. Then, the drawer 2 is manually pulled out of the cabinet 1. After the drawer 2 is fully pulled out, the handle 52 is released. The handle 52 is reset under the action of the torsion spring. The rotating block 51 rotates in the opposite direction and resets. The pull plate 32 moves downward under the action of the first elastic member 33, so that the first limit block 53 extends into the self-locking groove. The first limit block 53 is engaged with the self-locking rod 6 through the self-locking groove, thereby fixing the drawer 2 and preventing the drawer 2 from shaking. The first elastic member 33 applies a pulling force to the second section 312 through the pull plate 32, so that the second section 312 is tightened and pulls the front end of the drawer 2 upward, preventing the front end of the drawer 2 from tilting downward under the action of its own gravity, causing the drawer 2 to deform.

[0041] When the drawer 2 needs to be closed, the front end of the drawer 2 is manually pushed to move the drawer 2 backward. The arc surface of the first limit block 53 contacts the self-locking groove. When the drawer 2 moves backward, the first limit block 53 can be squeezed upward out of the self-locking groove, and the second elastic member contracts. When the first limit block 53 moves to the next self-locking groove, it extends into the self-locking groove again, and is squeezed out of the self-locking groove again as the drawer 2 moves backward. During this process, the first limit block 53 continuously collides with the self-locking rod 6, and the collision can produce an alarm sound. When the maintenance personnel repair the components in the switch cabinet at the rear of the cabinet 1, the front drawer 2 will make a sound during the closing process. The alarm sound can remind the maintenance personnel that the drawer is closed, preventing the circuit from being connected due to the drawer closing, and thus preventing safety accidents. In the process of the drawer 2 moving backward, the rear side wall of the second limit block 7 will stop against the cabinet 1, the cabinet 1 squeezes the second limit block 7, the third elastic member contracts, and the second limit block 7 is squeezed into the drawer 2. When the drawer 2 is about to be closed, the pull rope 31 gradually approaches the first stop block 14 and the second stop block 15, and the pull rope 31 stops with the inclined surface structure of the first stop block 14 and the second stop block 15, and squeezes the first stop block 14 and the second stop block 15, so that the first spring and the second spring contract, and the first stop block 14 and the second stop block 15 move away from each other, and the pull rope 31 enters the accommodating space. At this time, the first spring and the second spring release the elastic force and push the first stop block 14 and the second stop block 15 to reset. After entering the accommodating space, the pull rope 31 stops with the buffer wheel 11 and pushes the buffer wheel 11 to move backward, and the elastic connecting rod 10 contracts. This process can buffer the drawer 2, thereby preventing the drawer 2 from colliding violently with the cabinet body 1 when the drawer 2 is closed. When the drawer 2 is about to be closed, the positioning rod 18 gradually extends into the positioning hole 191, thereby ensuring that the plug 21 is aligned with the socket 20.

[0042] like Fig. 9 and Fig.10As shown, when the buffer wheel 11 moves backward, the first gear 12 and the second gear 13 move along the driving tooth groove, and the driving tooth groove drives the first gear 12 and the second gear 13 to rotate counterclockwise, and the first block 14 and the second block 15 rotate synchronously with the first gear 12 and the second gear 13. During the rotation process, the first block 14 and the second block 15 will cause the first section 311 to wrap around the buffer wheel 11, and the length of the first section 311 will decrease. At this time, the pull plate 32 and the self-locking rod 6 stop, and the self-locking rod 6 can limit the pull plate 32 from moving downward. The first section 311 pulls the matching plate 201 to move upward, so that there is a gap between the bottom end of the drawer 2 and the receiving groove, which improves the air flow at the bottom of the drawer 2, thereby improving the heat dissipation effect of the components at the bottom of the drawer 2. The drawer 2 drives the plug plate 19 to move synchronously through the positioning plate to ensure that the jack 20 and the plug 21 are always aligned. At this time, the second limit block 7 extends into the limit groove to fix the drawer 2. When opening the drawer 2 again, first push the drawer 2 backwards, the rear side wall of the second limit block 7 contacts the side wall of the limit groove and is squeezed into the drawer 2, and the buffer wheel 11 moves backwards, so that the first shift block 16 extends into the first slide groove 101, and the second shift block 17 extends into the second slide groove 102, the first shift block 16 moves along the first slide groove 101, and the second shift block 17 moves along the second slide groove 102, so that the first stop block 14 and the second stop block 15 move away from each other, the first spring and the second spring both contract, the first stop block 14 and the second stop block 15 release the limit on the first section 311, the first section 311 leaves the accommodating space, the rear end of the drawer 2 moves downward, and the drawer 2 is in a horizontal state. At this time, repeat the steps of pulling out the drawer 2 to pull out the drawer 2.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A low voltage withdrawable switch cabinet, comprising: A cabinet body, wherein the cabinet body has a plurality of receiving grooves, the side walls of the receiving grooves are provided with sliding grooves, the receiving grooves are provided with plug boards, and the plug boards are provided with plug holes; A drawer, the drawer is slidably fitted in the receiving groove, and the drawer can slide along the slide groove, the drawer is equipped with components, and the outer wall of the drawer is provided with a plug, and the plug can be electrically connected to the socket; It is characterized in that a traction assembly is also provided, which includes a pull rope, a pull plate and a first elastic member, and mounting seats are provided on both side walls of the accommodating groove, and each mounting seat is rotatably matched with a roller, and the pull rope is wound around the roller. The pull rope is distributed in a U shape on the drawer, and the pull rope passes through the front end of the drawer, the pull plate is connected to the drawer through the first elastic member, the pull plate is fixedly connected to the pull rope, and both ends of the pull rope pass through the pull plate and are connected to the rear end of the drawer.

2. The low voltage withdrawable switch cabinet according to claim 1, characterized in that: The drawer is provided with a self-locking component, and the self-locking component includes a rotating block, a handle and a first limit block. The rotating block is rotatably engaged with the inner wall of the front end side wall of the drawer, and the handle is rotatably engaged with the outer wall of the front end side wall of the drawer. The handle passes through the front end side wall of the drawer and is connected to the rotating block. The pull rope passes through the rotating block. The first limit block is arranged on the bottom surface of the pull plate, and a self-locking rod is provided on the side wall of the accommodating groove. The self-locking rod is provided with a plurality of self-locking grooves spaced apart from each other, and the first limit block can extend into the self-locking groove.

3. The low voltage withdrawable switch cabinet according to claim 2, characterized in that: The side wall of the first limit block close to the rear end of the drawer is an arc surface structure, the first limit block is connected to the pull plate through a second elastic member, and the first limit block can make a sound when colliding with the self-locking rod.

4. The low voltage withdrawable switch cabinet according to claim 3, characterized in that: A second limit block is provided at the bottom end of the drawer, and the side wall of the second limit block close to the rear end of the drawer is a curved structure. The second limit block is connected to the drawer through a third elastic member. A sliding frame is also provided on the second limit block, and a sliding rod is provided on the rotating block. The sliding rod can rotate along the circumferential direction of the rotating block, and the sliding rod can extend into the sliding frame and stop with the top end of the sliding frame. The second limit block can extend out of the drawer, and a limit groove is provided in the accommodating groove, and the second limit block can extend into the limit groove.

5. The low voltage withdrawable switch cabinet according to claim 4, characterized in that: An elastic connecting rod is arranged on the plug plate, and a buffer wheel is arranged at the end of the elastic connecting rod, and the buffer wheel can stop against the pull rope.

6. The low voltage withdrawable switch cabinet according to claim 5, characterized in that: A first gear and a second gear are respectively provided on both sides of the buffer wheel, a first stop block is slidably fitted on the first gear, and a second stop block is slidably fitted on the second gear, the first stop block is elastically connected to the first gear, and the second stop block is elastically connected to the second gear, the first stop block and the second stop block are symmetrically distributed, and an accommodating space can be formed between the first stop block, the second stop block and the buffer wheel, and the pull rope can enter the accommodating space, and a driving tooth groove is provided on the cabinet body, and the first gear and the second gear are meshed with the driving tooth groove.

7. The low voltage withdrawable switch cabinet according to claim 6, characterized in that: The elastic connecting rod is provided with a first sliding groove and a second sliding groove, the first sliding groove and the second sliding groove are inclinedly distributed, the first stopper is provided with a first shifting block, and the second stopper is provided with a second shifting block, the first shifting block can slide in the first sliding groove, and the second shifting block can slide in the second sliding groove, thereby being able to push the first stopper and the second stopper to move closer to or away from each other.

8. The low voltage withdrawable switch cabinet according to claim 7, characterized in that: The plug plate can slide in the cabinet, a positioning rod is provided at the rear end of the drawer, a positioning hole is provided on the plug plate, and the positioning rod can extend into the positioning hole.

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