Cabinet door with protection structure and cabinet

Abstract

The utility model discloses a cabinet door with a protection structure and a cabinet, which relate to the technical field of electrical cabinets and comprise a cabinet door, a movable assembly, a limit sensing assembly and a protection lock. According to the utility model, a mechanical interlocking structure in which the handle on the cabinet door drives the movable assembly to move back and forth is adopted to control the opening and closing of the observation hole on the cabinet door, and whether the cabinet can execute mechanical operation or not is judged according to whether the observation hole is in an open state or a closed state; and meanwhile, a double protection mechanism that the limiting induction assembly detects and feeds back the moving position of the movable assembly and the protection lock electrically controls the cabinet and mechanically controls locking and unlocking of the movable assembly is adopted, real-time monitoring and safety control over the working state are achieved, live-line work is effectively avoided, and the personal safety of workers is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electrical cabinet, concretely relates to a cabinet door with protection structure and cabinet. BACKGROUND

[0002] The cabinet door is a structure that protects the devices in the cabinet from the influence of complex external working conditions (such as dust, oil stains, humidity, etc.), and has safety and aesthetics.

[0003] In some field conditions, the staff needs to open the equipment cabinet door to operate the device. If the equipment is in an electrified working state, there will be safety hazards, and safety accidents are likely to occur. Therefore, enterprises will add electrical protection when designing and manufacturing cabinets to protect the safety of staff. However, in actual operation, there are still safety risks caused by the misoperation of staff. Therefore, there is an urgent need for a cabinet door structure with mechanical and electrical double protection mechanisms to prevent misoperation. SUMMARY

[0004] To solve the above problems, the utility model provides a cabinet door with protection structure and cabinet, which forms a double protection mechanism through mechanical interlocking between the cabinet door and the movable assembly, and signal linkage with electrical devices, realizes real-time monitoring and safety control of the working state, thereby ensuring that the operation is carried out under safe conditions, effectively reducing the risk of misoperation, and protecting the safety of personnel.

[0005] To achieve the above purpose, the utility model provides a cabinet door with protection structure on one side, which comprises a cabinet door, a movable assembly, a limit sensing assembly and a protection lock. The movable assembly is arranged on the inner side of the cabinet door and connected with the handle arranged on the outer side of the cabinet door. The handle drives the movable assembly to make linear reciprocating motion relative to the cabinet door, so as to control the opening and closing of the observation hole on the cabinet door through the blocking hole on the movable assembly. The limit sensing assembly is arranged at the end of the moving stroke of the movable assembly, which is used for detecting and feeding back the position state of the movable assembly. The protection lock is an electrical interlocking lock, and the internal electrical contact is connected to the cabinet control loop. The lock rod can be inserted into or withdrawn from the locking hole arranged on the movable assembly, so as to realize the locking and unlocking of the movable assembly.

[0006] Preferably, the movable assembly comprises a movable rod, a guide groove and a connecting piece. The guide groove is fixed on the cabinet door, the movable rod is arranged in the guide groove, and the connecting piece is arranged in the movable rod. The connecting piece is connected with the movable rod through the second plug screw, and connected with the handle through the first plug screw. The linear motion of the handle drives the movable rod to move along the guide groove through the connecting piece.

[0007] Preferably, an operation hole is arranged on the cabinet door, which is used for the movement of the handle and has gear indication. An opening and closing groove hole is arranged on the guide groove, which is used for the first plug screw to pass through. The track of the opening and closing groove hole corresponds to the operation hole.

[0008] Preferably, a guide slot hole is further provided on the guide slot, through which the second screwdriver is passed and guided to move.

[0009] Preferably, a limiting slot hole is provided on the movable rod, through which the second screwdriver is passed and connected with the connecting piece.

[0010] Preferably, a stroke hole and a blocking hole are respectively provided at two ends of the movable rod.

[0011] Preferably, the locking hole is provided on the movable rod, and the position of the locking hole corresponds to the position of the locking rod of the protection lock.

[0012] Preferably, the limiting sensing assembly comprises an adjustable plate and a stroke switch.

[0013] Preferably, a reset spring is provided between the connecting piece and the handle, and the reset spring is sleeved on the first screwdriver.

[0014] In another aspect, the utility model also provides a cabinet, which comprises a cabinet body and the cabinet door with the protection structure.

[0015] The utility model has the advantages that: through the double protection mechanism combining mechanical interlocking and electrical interlocking, it is ensured that the cabinet can only be mechanically operated in the power-off safe state, and the charged unlocking and misoperation are completely prevented; the corresponding relationship between the blocking hole and the observation hole provides intuitive visual state indication, which is convenient for the operator to quickly judge the operation condition; the limiting sensing assembly is used for real-time monitoring of the position of the movable assembly and feedback of signals, precise linkage and control of the working state are realized; the overall structure is compact and reasonable, supports various installation modes, has strong applicability, and significantly improves the safety and reliability of the cabinet operation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 4 is a partial structure perspective view of the inside of the cabinet door with the protection structure;

[0017] Figure 2 Fig. 5 is a projection schematic view of the outside of the cabinet door with the protection structure;

[0018] Figure 3 For Figure 1 Enlarged view of the connecting structure of the movable rod;

[0019] Figure 4 For the structure diagram of the guide groove;

[0020] Figure 5 For the structure diagram of the connecting piece;

[0021] Figure 6 For the structure diagram of the movable rod;

[0022] Figure 7 For the cabinet diagram of the cabinet door with the protection structure installed vertically;

[0023] Figure 8 For the cabinet diagram of the cabinet door with the protection structure installed horizontally;

[0024] Figure 9 For the cabinet diagram of the cabinet door with the protection structure installed obliquely.

[0025] Reference signs: cabinet door 1; movable rod 2; guide groove 3; locking hole 4; connecting piece 5; first plug screw 6; adjustable plate 7; protection lock 8; reset spring 9; handle 10; operation hole 11; stroke hole 12; second plug screw 13; stroke switch 14; observation hole 15; switch groove hole 16; stop hole 17; gear separation groove hole 18; support column 19; limiting groove hole 20; mounting hole 21; state two observation hole 151; state three observation hole 152; state two stop hole 171; state three stop hole 172. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0028] For example, Figures 1-6As shown, the utility model embodiment provides a cabinet door with protection structure, including cabinet door 1, movable assembly, limit sensing component and protection lock 8. Movable assembly is located in the inside of cabinet door 1, and is connected with handle 10 located in the outside of cabinet door 1. Handle 10 switches the working state, drives movable assembly to make linear reciprocating motion relative to cabinet door 1, to control the opening and closing of observation hole 15 on cabinet door 1 by the blocking hole 17 on the movable assembly, so that the staff judges whether the cabinet can operate by the state of observation hole 15. When blocking hole 17 and observation hole 15 are staggered and do not correspond, that is, observation hole 15 is in the closed state, the cabinet cannot operate; when blocking hole 17 moves to overlap with observation hole 15, that is, observation hole 15 is in the open state, the cabinet can operate. Limit sensing component is arranged at the end of the moving stroke of movable assembly, for detecting and feeding back the position state of movable assembly. Protection lock 8 is an electrical interlocking lock, and its internal electrical contact is connected to the cabinet control loop, and its lock rod can be inserted into or withdrawn from the locking hole 4 arranged on the movable assembly, to realize the locking and unlocking of the movable assembly.

[0029] In specific implementation, as shown in the drawings, Figure 2 An operating hole 11 with gear indication is provided on the above-mentioned cabinet door 1, so that the handle 10 moves in the hole to realize the switching of the working state of the cabinet. The gear indication is used to indicate the current working state of the cabinet, and the number and specific working state of the indication can be set according to the working condition of the application scene. The number of the opening holes of the observation hole 15 and the blocking hole 17 can be set according to the number of the corresponding working gears.

[0030] In specific implementation, the above-mentioned movable assembly includes an activity rod 2, a guide groove 3 and a connecting piece 5. As shown in the drawings, Figure 4 The guide groove 3 is provided with a switch groove hole 16 for the first plug screw 6 to pass through and connect with the handle 10, and the trajectory of the switch groove hole 16 corresponds to the operating hole 11. The guide groove 3 is provided with a support 19 for the installation and limiting of the activity rod 2. The guide groove 3 is provided with a guide groove hole 18 on both sides, and the guide groove hole 18 is provided with a second plug screw 13 to pass through and guide the movement. The guide groove hole 18 includes a plurality of gear separation grooves with arc-shaped top ends and a moving groove connecting the grooves, and the gear separation grooves have a limiting function, and the number of the gear separation grooves is equal to the number of the gears of the operating hole 11, and the groove length of the moving groove corresponds to the operating hole 11. The second plug screw 13 moves in the guide groove hole 18, cooperates with the first plug screw 6 and the activity rod 2 to realize the switching and limiting of the different working states of the cabinet.

[0031] As shown in the drawings, Figure 5 The connecting piece 5 is provided with a mounting hole for fixing the first plug screw 6, and the mounting hole is provided with a mounting hole for fixing the second plug screw 13 on both sides.

[0032] AsFigure 6 As shown in the drawings, the movable rod 2 is provided with a mounting hole 21 for fixing the first plug screw 6. The movable rod 2 is provided with a limiting slot hole 20 on both sides of the bending part. The second plug screw 13 passes through the limiting slot hole 20 and is connected with the connecting piece 5. The two ends of the limiting slot hole 20 are arc-shaped and correspond to the gear separation groove of the guide slot hole 18. The two ends are matched with each other to realize gear limiting and switching.

[0033] The movable rod 2 is provided with a stroke hole 12 and a blocking hole 17 at both ends. The blocking hole 17 moves with the movable rod 2. The stroke hole 12 limits the movement of the movable rod 2 within the stroke range. The size of the stroke hole 12 is greater than the length of the moving groove of the guide slot hole 18.

[0034] The movable rod 2 is provided with a plurality of locking holes 4 corresponding to the position of the locking rod of the protection lock 8. The number of the locking holes 4 corresponds to the gear of the operation hole 11. The locking holes 4 are used for inserting the locking rod of the protection lock 8 to lock. When the locking rod is separated from the locking hole 4, the movable rod is unlocked, the electrical contact is disconnected, the unlocking signal is sent, the cabinet is powered off or prohibited to start, and at this time, the cabinet can safely execute the related operation. When the locking rod is inserted into the locking hole 4, the movable rod is mechanically locked, the electrical contact is closed, the locking signal is sent, and the cabinet can be powered on. Thus, mechanical and electrical interlocking is realized to ensure that the cabinet can be powered on only in the locked state, and the live unlocking and misoperation are completely prevented.

[0035] As shown in the drawings, Figure 1 The limiting sensing assembly includes an adjustable plate 7 and a stroke switch 14. The adjustable plate 7 is installed on the inner side of the cabinet door 1, and the stroke switch 14 is fixed on the adjustable plate 7. The contact of the stroke switch 14 is perpendicular to the contact surface at the end of the stroke of the movable rod 2. The top end of the contact surface is provided with an inclined surface, which can make the stroke switch 14 trigger smoothly and reliably, and avoid “stuck” or jamming. The adjustable plate 7 can adjust the relative position of the stroke switch 14 and the movable rod 2 to ensure accurate sensing of the stroke switch 14.

[0036] As shown in the drawings, Figure 1 , Figure 2 , Figure 3 The guide slot 3 is fixed on the cabinet door 1 to correspond the switch slot hole 16 and the operation hole 11. The reset spring 9 is arranged between the connecting piece 5 and the handle 10 to provide the reset force and the gear self-locking force for the handle 10 to realize gear locking and automatic reset. The movable rod 2 is arranged in the guide slot 3 and is installed and limited by the cabinet door 1 and the support 19 on the guide slot 3. The movable rod 2 moves in the stroke hole 12 relative to the guide slot 3.

[0037] The connecting piece 5 is arranged in the movable rod 2, the reset spring 9 is sleeved on the first plug screw 6, one end of the first plug screw 6 is connected and fastened with the mounting hole of the connecting piece 5, the other end passes through the mounting hole 21 on the movable rod 2, the switch slot hole 16, the operation hole 11 and is connected and fastened with the handle 10, so that the connecting piece 5 and the handle 10 are connected as a linkage body. The second plug screw 13 is arranged on both sides of the movable rod 2, the second plug screw 13 passes through the guide slot hole 18 and the limiting slot hole 20 and is connected with the connecting piece 5, so that the connecting piece 5 and the movable rod 2 are connected as a linkage body. The handle 10 is connected by the first plug screw and drives the internal connecting piece 5 to move, the moving connecting piece 5 is connected by the second plug screw and drives the movable rod 2 to move, so as to realize the internal and external mechanical linkage.

[0038] The embodiment takes the operation hole 11 arranged with three gear position indicators as an example for description. As shown in Figure 1 、 Figure 2 , the working states of setting three gears are respectively gear one corresponding to the closed state, gear two corresponding to the working state one, and gear three corresponding to the working state two. The observation hole and the blocking hole corresponding to the gear two are the state two observation hole 151 and the state two blocking hole 171 respectively; the observation hole and the blocking hole corresponding to the gear three are the state three observation hole 152 and the state three blocking hole 172 respectively.

[0039] When the gear position of the cabinet door 1 is gear one, that is, the cabinet is in the closed state, the blocking hole 17 on the movable rod 2 does not correspond to the observation hole 15 on the cabinet door 1, that is, the blocking hole 17 blocks the observation hole 15, and the observation hole 15 is in the closed state, so that the cabinet cannot perform operation at this time.

[0040] When the cabinet needs to perform corresponding work, the working state is switched to gear two, first, the protection lock 8 is opened, the lock rod is separated from the locking hole 4, the cabinet is powered off, the restriction of the movable rod 2 is unlocked, and the cabinet enters the operable state. Second, the handle 10 is pulled to move in the operation hole 11 to switch the gear. The switching action of the handle 10 drives the first plug screw 6 and the connecting piece 5 to move, the movement of the connecting piece 5 drives the second plug screw 13 to move out of the limiting slot hole 20 and the gear separation groove, and the state of being limited by the gear separation groove is released, and the second plug screw 13 moves to the moving slot. The second plug screw 13 moves in the moving slot, drives the movable rod 2 to move linearly along the guide slot 3.

[0041] When the handle 10 is moved to gear two, the second knock pin 13 is also moved to the corresponding limiting interval in the moving groove, the handle 10 is loosened, the second knock pin 13 is pushed into the gear interval groove corresponding to gear two by the reset spring 9, and gear two switching is completed. At this time, the movable rod 2 is mechanically limited by the second knock pin 13 and the reset spring 9 and cannot be moved, and the position of the state two blocking hole 171 is also moved to be aligned with the state two observation hole 151 on the cabinet door 1, the state two observation hole 151 is in an open state, at this time, the cabinet is in a power-off state, and the cabinet can safely perform the operation corresponding to gear two. After the operation is completed, the protection lock 8 is closed, the lock rod is inserted into the locking hole 4, the movable rod 2 is locked, and then the cabinet is powered on, and the cabinet enters the electrical working state corresponding to gear two.

[0042] When the handle 10 is switched to gear three, the operation steps are the same as those of gear two. When gear three switching is completed, the position of the state three blocking hole 172 is moved to be aligned with the state three observation hole 152, the state three observation hole 152 is in an open state, at this time, the cabinet is in a power-off state, and the cabinet can safely perform the operation corresponding to gear three. In the above gear switching process, if the movable rod 2 continues to move, the contact surface thereof contacts the contact of the travel switch 14, the travel switch 14 immediately responds and sends a signal to trigger the cabinet to trip or implement a power-off protection mechanism, at this time, the cabinet cannot perform subsequent work, and the protection effect is achieved. At this time, the observation hole 15 is in a non-closed state, the travel switch 14 continues to respond, and the cabinet cannot be powered on again. If the cabinet power supply needs to be restored, the handle 10 is switched to gear one, that is, the closed state.

[0043] In specific implementation, the installation position of the movable assembly on the cabinet door 1 can adopt a commonly used vertical installation, as shown in Figure 1 、 Figure 7 indicates. The horizontal installation can also be adopted, as shown in Figure 8 indicates. In a special application scenario, the inclined installation can also be adopted, as shown in Figure 9 According to different application scenarios, various installation modes are supported, and the applicability is increased.

[0044] The embodiment of the utility model also provides a cabinet, which comprises a cabinet body and the cabinet door with the protection structure.

[0045] The above merely describes preferred embodiments of the utility model and is not intended to limit the utility model in any form, and those skilled in the art can make various equivalent changes and improvements on the basis of the above embodiments, and any equivalent changes or modifications made within the scope of claims shall be included in the protection scope of the utility model.

Claims

1. A cabinet door with a protective structure, comprising a cabinet door (1), a movable component, a limit sensing component, and a protective lock (8), characterized in that: The movable component is located inside the cabinet door (1) and connected to the handle (10) located outside the cabinet door (1); the handle (10) drives the movable component to make linear reciprocating motion relative to the cabinet door (1) so as to control the opening and closing of the observation hole (15) on the cabinet door (1) through the stop hole (17) on the movable component. The limit sensing component is located at the end of the movement stroke of the movable component, and is used to detect and provide feedback on the position status of the movable component; The protective lock (8) is an electrical interlocking lock with its internal electrical contacts connected to the cabinet control circuit. Its locking rod can be inserted into or removed from the locking hole (4) provided on the movable component to lock and unlock the movable component.

2. The cabinet door with a protective structure according to claim 1, characterized in that: The movable component includes a movable rod (2), a guide groove (3), and a connector (5); The guide groove (3) is fixed on the cabinet door (1); the movable rod (2) is placed in the guide groove (3); the connector (5) is placed in the movable rod (2), connected to the movable rod (2) by the second screw (13), and connected to the handle (10) by the first screw (6); The linear motion of the handle (10) drives the movable rod (2) to move along the guide groove (3) through the connector (5).

3. The cabinet door with a protective structure according to claim 2, characterized in that: The cabinet door (1) has an operating hole (11) for the handle (10) to move and has a gear indicator; the guide groove (3) has a switch slot (16) for the first plug screw (6) to pass through, and the trajectory of the switch slot (16) corresponds to the operating hole (11).

4. The cabinet door with a protective structure according to claim 3, characterized in that: The guide groove (3) is also provided with a guide groove hole (18), which allows the second plug screw (13) to pass through and guide its movement; the guide groove hole (18) includes multiple gear separation grooves and a moving groove connecting each groove, and the number of gear separation grooves is equal to the number of gears of the operating hole (11).

5. The cabinet door with a protective structure according to claim 4, characterized in that: The movable rod (2) is provided with a limiting slot (20), and the second plug screw (13) passes through the limiting slot (20) and is connected to the connector (5); the two ends of the limiting slot (20) are arc-shaped and cooperate with the gear separation groove of the guide slot (18) to realize gear limiting and switching.

6. The cabinet door with a protective structure according to claim 4, characterized in that: The movable rod (2) is provided with a stroke hole (12) and a stop hole (17) at both ends respectively; the size of the stroke hole (12) is larger than the guide groove hole (18), and it is installed and limited by the support column (19) on the cabinet door (1) and the guide groove (3).

7. The cabinet door with a protective structure according to claim 3, characterized in that: The locking hole (4) is located on the movable rod (2), and its position corresponds to the locking rod position of the protective lock (8). The number of the locking holes corresponds to the number of positions of the operating holes (11).

8. The cabinet door with a protective structure according to claim 2, characterized in that: The limit sensing component includes an adjustable plate (7) and a limit switch (14). The adjustable plate (7) is installed inside the cabinet door (1). The limit switch (14) is fixed on the adjustable plate (7), and its contact is perpendicular to the contact surface at the end of the stroke of the movable rod (2). The top of the contact surface is provided with a slope.

9. The cabinet door with a protective structure according to claim 2, characterized in that: A return spring (9) is provided between the connector (5) and the handle (10). The return spring (9) is sleeved on the first locking screw (6) and is used to provide the return force and gear self-locking force of the handle (10).

10. A server rack, characterized in that: It includes a cabinet body and a cabinet door with a protective structure as described in any one of claims 1-9, the cabinet door being installed outside the cabinet body.

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