A drawer interlocking device of a switchgear

Abstract

The utility model relates to drawer interlock technical field discloses a drawer interlock device of switch cabinet, including main part assembly, including switch cabinet, be provided with drawer on the switch cabinet, the drawer has panel and rear chamber, interlock component is located on the drawer, including the lock mechanism of fixed in rear chamber inner wall, the drawer is provided with switching mechanism, the utility model has the advantages that: through design cooperation piece, when the operator presses button and unlocks the drawer position, can automatically push knob rotation, the circuit inside the drawer is powered off, avoids the operator to forget to open the drawer because of the situation that the power is off due to negligence, simultaneously when the operator follows normal safety operation procedure, first rotates the knob and makes the circuit power off, the design of cooperation piece will not have the influence to the operation of subsequent button pressing and unlocking the drawer position, guarantees that the operator can use switch cabinet skillfully, improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of drawer interlocking technology, and in particular to a drawer interlocking device for a switch cabinet. Background Technology

[0002] Drawer-type switchgear contains numerous electrical components inside its drawers, performing crucial functions such as circuit opening and closing, and protection. To ensure operational safety and prevent misoperation, drawers are typically equipped with a drawer position locking mechanism and a circuit breaker mechanism that controls the on / off state of the internal electrical components. The locking mechanism is usually unlocked by pressing a button on the outside of the drawer, while the on / off state of the internal circuit is controlled by a knob on the outside of the drawer. According to safety operating procedures, when opening the drawer for inspection, maintenance, or other operations, the knob must first be rotated to de-energize the internal circuit before pressing the button to unlock the drawer. However, in actual use, due to operator negligence or operating habits, it is highly likely that the operator will forget to rotate the knob and directly press the button to unlock the drawer, thus opening the drawer. This misoperation exposes the still-energized electrical components inside the drawer, posing a threat to the operator's personal safety and potentially causing electrical short circuits, fires, and other safety accidents, severely impacting the stable operation of the power system and the normal production and life of related locations. Utility Model Content

[0003] In view of the problems existing in the above and / or existing drawer interlocking devices of switch cabinets, this utility model is proposed.

[0004] Therefore, the problem that this utility model aims to solve is that when workers open the drawer of the switch cabinet, they forget to rotate the knob to turn off the power and instead directly press the button to unlock the drawer, which creates a safety hazard.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a drawer interlocking device for a switch cabinet, comprising a main body component including a switch cabinet, wherein the switch cabinet is provided with a drawer, and the drawer has a panel and a rear chamber;

[0006] An interlocking assembly, located on the drawer, includes a locking mechanism fixed to the inner wall of the rear cavity, and the drawer is provided with a gate opening and closing mechanism;

[0007] The interlocking assembly also includes a mating component located on the drawer. A through groove is provided on the panel. The mating component includes a movable plate disposed in the through groove. A fixed plate is fixed on the movable plate. A pressing block is provided at the upper end of the fixed plate. A knob is provided on the panel. One end of the knob is connected to a rotating shaft. A force-bearing plate is fixed on the rotating shaft. A push block is provided at one end of the force-bearing plate. The other end of the push block is in contact with the pressing block.

[0008] In a preferred embodiment of the drawer interlocking device of the switch cabinet of the present invention, the bottom of the pressing block is fixed with a connecting plate, and the other end of the connecting plate is fixed with the fixing plate.

[0009] As a preferred embodiment of the drawer interlocking device of the switch cabinet described in this utility model, the pressing block is in the shape of a right triangle, with one of the acute angles being relatively small.

[0010] As a preferred embodiment of the drawer interlocking device of the switch cabinet described in this utility model, one end of the push block is inclined, and its inclined surface is in contact with the inclined surface of the pressing block.

[0011] As a preferred embodiment of the drawer interlocking device of the switch cabinet of the present invention, the interlocking component further includes a support member located in the rear cavity, including a locking block fixed to the bottom of the pressing block, a first support block fixed to the inner wall of the rear cavity, the first support block having a locking groove, and the locking block being slidable in the locking groove.

[0012] As a preferred embodiment of the drawer interlocking device of the switch cabinet of the present invention, wherein: a fixed sleeve is fixedly fixed to the outside of the push block, the fixed sleeve has a first moving groove corresponding to the push block, and the push block slides in the first moving groove.

[0013] As a preferred embodiment of the drawer interlocking device of the switch cabinet of the present invention, an auxiliary block is fixed on the fixed sleeve, a second support block is fixed at one end of the auxiliary block, and the other end of the second support block is fixed to the inner wall of the rear cavity.

[0014] As a preferred embodiment of the drawer interlocking device of the switch cabinet of this utility model, the movable plate is provided with a first spring, and the two ends of the first spring are respectively fixed to the fixed plate and the locking mechanism.

[0015] As a preferred embodiment of the drawer interlocking device of the switch cabinet of this utility model, wherein: one end of the push block is fixed with an auxiliary plate, and the auxiliary plate slides within the auxiliary block.

[0016] As a preferred embodiment of the drawer interlocking device of the switch cabinet of this utility model, an electrical component is also fixed in the rear chamber, and a handle is fixed on the panel.

[0017] The beneficial effects of this utility model are as follows: By designing a mating component, when the operator presses the button to unlock the drawer, the knob can be automatically turned to disconnect the power to the drawer's internal circuit. This prevents the operator from opening the drawer due to negligence and forgetting to disconnect the power. At the same time, when the operator follows the normal safety operating procedures and first turns the knob to disconnect the power, the design of the mating component will not affect the subsequent operation of pressing the button to unlock the drawer, ensuring that the operator can skillfully use the switch cabinet and improve work efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is an overall structural diagram of the drawer interlocking device in the switch cabinet.

[0020] Figure 2 This is a diagram of the drawer structure of the drawer interlocking device in the switch cabinet.

[0021] Figure 3 This is a diagram of the knob structure for the drawer interlocking device of the switch cabinet.

[0022] Figure 4 This is a cross-sectional view of the rear chamber of the drawer interlocking device in the switch cabinet.

[0023] Figure 5 For the drawer interlocking device of the switch cabinet Figure 4 A magnified view of part A in the middle.

[0024] Figure 6 This is a diagram showing the button structure of the drawer interlocking device in the switch cabinet.

[0025] Figure 7 This is a structural diagram of the push block of the drawer interlocking device in the switch cabinet.

[0026] Figure 8 This is a cross-sectional view of the push block structure of the drawer interlocking device in the switch cabinet. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0030] Example 1

[0031] Reference Figures 1-8 This is the first embodiment of the present utility model. This embodiment provides a drawer interlocking device for a switch cabinet. The drawer interlocking device for the switch cabinet includes a main component 100, including a switch cabinet 101. A drawer 102 is provided on the switch cabinet 101. The drawer 102 has a panel 102a and a rear chamber 102b.

[0032] The interlocking assembly 200, located on the drawer 102, includes a locking mechanism 201 fixed to the inner wall of the rear chamber 102b. The locking mechanism 201 is used to lock the position of the drawer 102 so that the drawer 102 will not be opened by accident after being closed. The drawer 102 is provided with a circuit breaker mechanism 202, which is used to cut off the internal circuit of the drawer 102.

[0033] When opening drawer 102, it is necessary to first ensure that the opening and closing mechanism 202 cuts off the internal circuit of drawer 102 before the locking mechanism 201 can be released and drawer 102 can be opened.

[0034] The interlocking assembly 200 also includes a mating part 203 located on the drawer 102. With the mating part 203, when the locking mechanism 201 is released, the closing mechanism 202 can simultaneously complete the power-off operation, thereby preventing workers from opening the drawer 102 directly without turning off the power, which could lead to safety hazards.

[0035] A through groove 102a-1 is provided on the panel 102a. The mating part 203 includes a movable plate 203a disposed in the through groove 102a-1. A fixed plate 203b is fixed on the movable plate 203a. A button 203j is fixed on one end of the movable plate 203a. A fixed block 203k is fixed on the panel 102a. The fixed block 203k has a sliding groove 203k-1. The button 203j slides in the sliding groove 203k-1. The other end of the movable plate 203a is inserted into the locking mechanism 201. Pressing the button 203j can move the movable plate 203a, thereby unlocking the locking mechanism 201. Then the drawer 102 can be opened. This is the prior art. This solution will not be described in detail. Those skilled in the art can clearly understand the working principle.

[0036] An extrusion block 203c is provided on the upper end of the fixed plate 203b. The movement of the movable plate 203a can drive the fixed plate 203b to move, thereby causing the extrusion block 203c to move in the same direction.

[0037] A knob 203d is provided on the panel 102a. One end of the knob 203d is connected to a rotating shaft 203e, and the other end of the rotating shaft 203e is inserted into the opening and closing mechanism 202. Rotating the knob 203d can drive the rotating shaft 203e to rotate, thereby controlling the opening and closing of the circuit executed by the opening and closing mechanism 202. The knob 203d has two states, namely "ON" and "OFF". When the knob 203d is in the "ON" state, the circuit is in the on state, and the electrical components 103 in the drawer 102 are energized. When the knob 203d is rotated counterclockwise to the "OFF" state, the opening and closing mechanism 202 opens the isolating switch, cuts off the circuit, and de-energizes the electrical components 103 in the drawer 102, thereby ensuring the safety of personnel when opening the drawer 102 for inspection, maintenance and other operations. This is the prior art, and this solution will not be described in detail. Moreover, those skilled in the art can clearly understand the working principle.

[0038] A force-bearing plate 203f is fixed on the rotating shaft 203e. When the switch cabinet 101 is in operation, the drawer 102 is closed. The force-bearing plate 203f is located on the side close to the pressing block 203c. A push block 203g is provided at one end of the force-bearing plate 203f, and the other end of the push block 203g is in contact with the pressing block 203c. The moving plate 203a will drive the pressing block 203c to move synchronously, thereby causing the push block 203g to move towards the force-bearing plate 203f. The push block 203g will apply pressure to the force-bearing plate 203f, thereby causing the force-bearing plate 203f to rotate around the center of the rotating shaft 203e and then away from the pressing block 203c, thereby driving the rotating shaft 203e to rotate. When viewing the knob 203d from the front of the panel 102a, the knob 203d will rotate counterclockwise, thereby causing the disconnecting switch of the opening and closing mechanism 202 to open, cutting off the circuit, and making the electrical components 103 in the drawer 102 de-energized.

[0039] Example 2

[0040] Reference Figures 1-8 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0041] Specifically, a connecting plate 203h is fixed to the bottom of the extrusion block 203c, and the other end of the connecting plate 203h is fixed to the fixing plate 203b. The connecting plate 203h is set to connect the extrusion block 203c and the fixing plate 203b, so as to ensure that the movement of the fixing plate 203b can drive the extrusion block 203c to move synchronously.

[0042] Specifically, the squeezing block 203c is a right-angled triangle with a small acute angle. By setting a small tilt angle, pressing the button 203j causes the moving plate 203a to move a small distance. With the cooperation of the squeezing block 203c, the push block 203g can move a longer stroke, so that the angle of rotation of the force plate 203f and the rotating shaft 203e can meet the requirement of changing the working state of the opening and closing mechanism 202 by rotating the knob 203d, thereby smoothly controlling the energization of the electrical components 103 in the drawer 102.

[0043] Specifically, one end of the push block 203g is inclined, and its inclined surface is in contact with the inclined surface of the extrusion block 203c. The inclination angle of the push block 203g is the same as the inclination angle of the inclined side of the extrusion block 203c. Thus, when the moving plate 203a drives the extrusion block 203c to move synchronously, the inclined surface of the extrusion block 203c presses against the inclined surface of the push block 203g, thereby causing the push block 203g to move in the direction of the force plate 203f, and thus pushing the force plate 203f to rotate.

[0044] Specifically, the interlocking assembly 200 also includes a support member 204 located in the rear chamber 102b. The support member 204 is provided to support and limit the compression block 203c and the push block 203g.

[0045] The support member 204 includes a locking block 204a fixed to the bottom of the extrusion block 203c. A first support block 204b is fixed to the inner wall of the rear chamber 102b. The first support block 204b provides stable support for the extrusion block 203c. The first support block 204b has a slot 204b-1. The locking block 204a can slide in the slot 204b-1. Through the cooperation of the locking block 204a and the slot 204b-1, when the moving plate 203a moves and drives the connecting plate 203h to move, and the connecting plate 203h drives the extrusion block 203c to move, the locking block 204a will slide in the slot 204b-1, thereby ensuring that the extrusion block 203c can only move smoothly in the direction of the slot 204b-1.

[0046] Specifically, a fixing sleeve 204c is fixed to the outside of the push block 203g. The fixing sleeve 204c is used to restrict the movement direction of the push block 203g. The fixing sleeve 204c has a first moving groove 204c-1 corresponding to the push block 203g. The push block 203g slides in the first moving groove 204c-1. When the inclined surface of the pressing block 203c presses the inclined surface of the push block 203g, causing the push block 203g to move in the direction of the force plate 203f, the push block 203g can only move in the direction of the first moving groove 204c-1, ensuring that the force plate 203f can be smoothly pushed to rotate.

[0047] Specifically, an auxiliary block 204d is fixed on the fixed sleeve 204c. A second support block 204e is fixed to one end of the auxiliary block 204d, and the other end of the second support block 204e is fixed to the inner wall of the rear chamber 102b. The fixed sleeve 204c is connected to the inner wall of the rear chamber 102b through the auxiliary block 204d and the second support block 204e, thereby ensuring that the position of the push block 203g will not shift.

[0048] Both the first support block 204b and the second support block 204e have a triangular block 204h fixed at their bottom. One end of the triangular block 204h is fixed to the inner wall of the rear chamber 102b, which increases the support stability of the first support block 204b and the second support block 204e.

[0049] Example 3

[0050] Reference Figures 1-8 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0051] Specifically, the movable plate 203a is fitted with a first spring 203i. The two ends of the first spring 203i are fixed to the fixed plate 203b and the locking mechanism 201, respectively. The first spring 203i is used to reset the movable plate 203a. When the button 203j is pressed to move the movable plate 203a, the first spring 203i will be compressed. When the button 203j is released, the first spring 203i will return to its original position, thereby applying a directional pushing force to the fixed plate 203b, so that the movable plate 203a returns to its initial position.

[0052] Specifically, an auxiliary plate 204f is fixed to one end of the push block 203g, and a second moving groove 204d-1 corresponding to the auxiliary plate 204f is opened on the auxiliary block 204d. The auxiliary plate 204f slides in the auxiliary block 204d, and a second spring 204g is fixed to the other end of the auxiliary plate 204f. The other end of the second spring 204g is fixed to the inner wall of the second moving groove 204d-1. The two are set to reset the push block 203g and ensure that the inclined surface of the push block 203g is always in contact with the inclined surface of the extrusion block 203c.

[0053] When the moving plate 203a returns to its initial position, the pressing block 203c will also reset, and the inclined surface of the pressing block 203c will no longer press the inclined surface of the pushing block 203g. At this time, under the action of the second spring 204g, the position of the pushing block 203g will also reset, so that the inclined surface of the pushing block 203g and the inclined surface of the pressing block 203c come into contact with each other.

[0054] Specifically, an electrical component 103 is fixed inside the rear chamber 102b, and a handle 104 is fixed on the panel 102a.

[0055] When using the switchgear 102, the operator follows the normal safety operating procedures. First, rotate the knob 203d to the "OFF" position to control the switching mechanism 202 to open the isolating switch, cutting off the circuit and de-energizing the electrical components 103 inside the drawer 102. Then, press the button 203j to move the moving plate 203a, thereby unlocking the locking mechanism 201. During this process, the pressing block 203c moves synchronously, causing the pushing block 203g to move towards the force plate 203f. However, rotating the knob 203d causes the rotating shaft 203e to rotate synchronously, and the force plate 203f has rotated to a position away from the pressing block 203c. At this point, pressing the button 203j will not affect the power outage and will unlock the locking mechanism 201, ensuring operational safety without changing the original normal operating procedures. This ensures that operators can use the switchgear 101 skillfully and conveniently, improving work efficiency.

[0056] If the worker forgets to first rotate knob 203d to the "OFF" position, pressing button 203j will move movable plate 203a, thereby unlocking locking mechanism 201. Simultaneously, the movement of movable plate 203a causes connecting plate 203h to move, which in turn moves pressing block 203c. The inclined surface of pressing block 203c presses against the inclined surface of push block 203g, causing push block 203g to move towards force plate 203f. Push block 203g will then apply pressure to force plate 203f. This causes the force plate 203f to rotate around the center of the rotating shaft 203e, and then rotate away from the extrusion block 203c, thereby driving the rotating shaft 203e to rotate. When viewed from the front of the panel 102a, the knob 203d will rotate counterclockwise, thereby causing the disconnecting switch of the opening and closing mechanism 202 to open, cutting off the circuit, and making the electrical components 103 in the drawer 102 de-energized. This avoids safety hazards such as electric shock and short circuit caused by misoperation, and provides reliable protection for the personal safety of the operator.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solution 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 solution of this utility model without departing from the spirit and scope of the technical solution 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. A drawer interlocking device for a switch cabinet, characterized in that: include, The main component (100) includes a switch cabinet (101) on which a drawer (102) is provided, the drawer (102) having a panel (102a) and a rear chamber (102b). An interlocking assembly (200) is located on the drawer (102) and includes a locking mechanism (201) fixed to the inner wall of the rear chamber (102b). The drawer (102) is provided with a gate opening and closing mechanism (202). The interlocking assembly (200) further includes a mating component (203) located on the drawer (102). A through groove (102a-1) is provided on the panel (102a). The mating component (203) includes a movable plate (203a) disposed in the through groove (102a-1). A fixed plate (203b) is fixed on the movable plate (203a). A pressing block (203c) is provided on the upper end of the fixed plate (203b). A knob (203d) is provided on the panel (102a). One end of the knob (203d) is connected to a rotating shaft (203e). A force-bearing plate (203f) is fixed on the rotating shaft (203e). A push block (203g) is provided on one end of the force-bearing plate (203f). The other end of the push block (203g) is in contact with the pressing block (203c).

2. The drawer interlocking device of the switch cabinet as described in claim 1, characterized in that: The bottom of the extrusion block (203c) is fixed with a connecting plate (203h), and the other end of the connecting plate (203h) is fixed with the fixing plate (203b).

3. The drawer interlocking device of the switch cabinet as described in claim 1 or 2, characterized in that: The extrusion block (203c) is a right triangle with one of its acute angles being smaller.

4. The drawer interlocking device of the switch cabinet as described in claim 3, characterized in that: One end of the pusher (203g) is inclined, and its inclined surface is in contact with the inclined surface of the extrusion block (203c).

5. The drawer interlocking device of the switch cabinet as described in claim 4, characterized in that: The interlocking assembly (200) also includes a support member (204) located in the rear chamber (102b), including a locking block (204a) fixed to the bottom of the compression block (203c). A first support block (204b) is fixed to the inner wall of the rear chamber (102b). The first support block (204b) has a slot (204b-1) and the locking block (204a) can slide in the slot (204b-1).

6. The drawer interlocking device of the switch cabinet as described in claim 4 or 5, characterized in that: The push block (203g) is fixed with a fixing sleeve (204c), and the fixing sleeve (204c) has a first moving groove (204c-1) corresponding to the push block (203g). The push block (203g) slides in the first moving groove (204c-1).

7. The drawer interlocking device of the switch cabinet as described in claim 6, characterized in that: An auxiliary block (204d) is fixed on the fixed sleeve (204c). A second support block (204e) is fixed to one end of the auxiliary block (204d), and the other end of the second support block (204e) is fixed to the inner wall of the rear chamber (102b).

8. The drawer interlocking device of the switch cabinet as described in claim 7, characterized in that: The movable plate (203a) is fitted with a first spring (203i), and the two ends of the first spring (203i) are fixed to the fixed plate (203b) and the locking mechanism (201) respectively.

9. The drawer interlocking device of the switch cabinet as described in claim 7 or 8, characterized in that: An auxiliary plate (204f) is fixed to one end of the push block (203g), and the auxiliary plate (204f) slides within the auxiliary block (204d).

10. The drawer interlocking device of the switch cabinet as described in claim 9, characterized in that: Electrical components (103) are also fixed inside the rear chamber (102b), and a handle (104) is fixed on the panel (102a).

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