A switch cabinet baffle with anti-misoperation function

Abstract

The utility model discloses a switchgear baffle with anti -misoperation function has the double interlock protection, first protection subassembly and second protection subassembly pass through drive wheel, the mechanical linkage of hooking down, forcibly realizes the operation order of " louver baffle opening -> curtain unfolding " curtain back -> louver baffle closing", avoids the misoperation.

Description

Technical Field

[0001] This utility model relates to the field of switchgear technology, specifically a switchgear baffle with anti-misoperation function. Background Technology

[0002] In the utility model patent application CN222826815U, published on 2025-05-02 and entitled "A Low-Voltage Switchgear with Anti-Accidental Touch Mechanism", this utility model discloses a low-voltage switchgear with an anti-accidental touch mechanism, including a cabinet body, a cabinet door, a lead screw rotatably connected to the cabinet door, a movable plate threaded onto the lead screw, a mounting plate fixedly connected to the bottom end of the movable plate, multiple bearings fixedly connected to the mounting plate, a frame fixedly connected to the cabinet door at the corresponding button position, multiple sliding grooves opened on the top wall of the frame, round rods slidably connected inside each of the multiple sliding grooves, baffles fixedly connected to the bottom end of each of the multiple round rods, driven gears fixedly connected to each of the multiple round rods, and fixed racks fixedly connected to the top of the frame at the corresponding driven gear position. The beneficial effects of this utility model are: the baffles in the closed state can block the operation buttons, preventing the accidental touch of the buttons by the staff, and it is easy to open all the baffles at the same time, making operation convenient and highly practical.

[0003] In the prior art including the aforementioned patents, switchgear, as the core equipment for power distribution and control in power systems, has its internal live components whose safety protection is directly related to the personal safety of maintenance personnel and the stable operation of the power grid. Traditional switchgear baffles mostly adopt a single isolation structure, which only achieves basic protection through physical shielding and lacks linkage constraints with the equipment's operating status. This makes it easy for electric shock or short circuit accidents to occur due to human error (such as opening the baffle without confirming the power outage status). In existing technologies, although some baffles have added mechanical interlocking structures, they have the following defects: First, the interlocking logic is simple, mostly only bound to the circuit breaker status, ignoring the collaborative constraints of key equipment such as disconnecting switches and grounding switches; second, the sealing performance of the protective components is poor, and dust and moisture can easily enter the energized area; third, the operation feedback is unclear, and it is difficult for operation and maintenance personnel to intuitively judge the safety status of the baffle. Therefore, there is a need for a switchgear baffle with multiple protections, reliable linkage, and clear operation to prevent misoperation. Utility Model Content

[0004] The purpose of this utility model is to provide a switch cabinet baffle with anti-misoperation function, so as to solve the problem mentioned in the background art of achieving the dual anti-misoperation effect of "mechanical interlocking + physical isolation" through the linkage design of dual protection components, while optimizing the structural sealing and operation convenience.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a switch cabinet baffle with anti-misoperation function, comprising a switch mounting frame, an outer frame fixedly connected to the outer wall of the switch mounting frame, a second protective component installed inside the outer frame, a barrier frame fixedly connected to the outer wall of the outer frame, a first protective component installed inside the barrier frame, a transparent protective cover installed on the front pivot of the barrier frame, a drive wheel connected to the outer wall bearing of the outer frame, a reversing hook fixedly connected to the outer wall of the drive wheel, and a panel installed on the outer wall of the barrier frame.

[0006] Furthermore, the first protective component includes a support shaft, a driven wheel, a linkage rod, a louvered baffle, a handle, and a drive belt. The inner bearing of the barrier frame is equipped with a support shaft, one end of the support shaft is equipped with a driven wheel, the other end of the support shaft is connected to a linkage rod, the inner side of the linkage rod is connected to a louvered baffle through a connecting rod shaft, one end of the support shaft is equipped with a handle, and the outer wall of the driven wheel is provided with a drive belt.

[0007] Furthermore, the support shaft passes through the barrier frame, and three sets of louvered baffles are provided, arranged in parallel inside the barrier frame. A copper bearing sleeve is installed at the connecting rod shaft of the linkage rod and the louvered baffle, and the edge of the louvered baffle is provided with an arc transition angle. Sealing strips are pasted on the contact edges of adjacent sets of louvered baffles.

[0008] Furthermore, the driven wheel is connected to the drive wheel via a drive belt. The drive belt is a polyurethane synchronous belt, and the teeth of both the driven wheel and the drive wheel mesh with the tooth grooves of the synchronous belt. A tension wheel is provided on the inner side of the drive belt, and the tension wheel is fixed to the inner wall of the barrier frame by a bracket.

[0009] Furthermore, the second protective assembly includes a fixed shaft, a spring coiler, a curtain, a fixed hook, and a suspension hook. The fixed shaft is installed through the interior of the outer frame. A spring coiler is installed on the inner side of the fixed shaft. The output end of the spring coiler is fixedly connected to the curtain. A fixed hook is fixedly connected to one end of the fixed shaft. A suspension hook is fixedly connected to the top of the curtain.

[0010] Furthermore, the two ends of the fixed shaft are rotatably connected to the inner wall of the outer frame through bearing seats. The bearing seats are provided with dustproof sealing rings, and the outer wall of the fixed shaft is provided with an annular groove to limit the installation position of the coil spring.

[0011] Furthermore, the end of the fixed hook is provided with a limiting protrusion. When the fixed hook is engaged with the inverted hook, the limiting protrusion abuts against the inner side of the inverted hook. A weight strip is sewn on the bottom edge of the curtain. The weight strip is a flexible metal strip.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the switch cabinet baffle with anti-misoperation function is reasonable and has the following advantages: (1) This utility model adopts an innovative mechanical linkage interlocking structure, which consists of a first protective component and a second protective component forming the core protective unit. The two are rigidly connected by a drive wheel and a reversing hook to achieve forced constraints on the operation process. When the operator opens the louvered baffle, the rotation of the drive wheel drives the curtain transmission mechanism through the meshing structure of the reversing hook, ensuring that the curtain automatically unfolds to form secondary protection when the louvered baffle is open. Conversely, when the curtain retraction operation is performed, the reverse transmission mechanism of the reversing hook will trigger the automatic closing program of the louvered baffle, so that the baffle is immediately reset after the curtain is fully retracted. This design eliminates the risk of misoperation such as "louvered baffle is open but curtain is not unfolded" or "curtain is retracted but baffle is not closed" through mechanical physical constraints. At the same time, the handle directly drives the louvered baffle, the spring coiler realizes the automatic retraction of the curtain, and the transparent protective cover makes it easy to observe the internal status, which is in line with ergonomics. (2) High-precision copper bearing sleeves are adopted. Through their excellent wear resistance and self-lubricating properties, friction loss during component linkage is significantly reduced, effectively reducing mechanical failures caused by wear. They are paired with customized polyurethane synchronous belts and automatic tensioning pulleys. The precise tooth transmission structure of the synchronous belt and the constant pressure adjustment mechanism of the tensioning pulley ensure zero slippage and low noise during power transmission, maintaining stable and reliable equipment operation. Double-layer dustproof sealing rings and sealing strips are added. The former blocks dust and foreign objects from entering through the louvered sealing design, while the latter fills the assembly gap with its high elasticity and aging resistance, forming an all-round sealing protection system. This greatly improves the equipment protection level, effectively delays the aging process of internal components, and significantly extends the overall service life of the equipment. Attached Figure Description

[0013] Figure 1 This is an overall drawing of the present utility model; Figure 2 This is a schematic diagram of the structure of the outer frame and the barrier frame of this utility model; Figure 3 This is a schematic diagram of the structure of the first protective component and the second protective component of this utility model; Figure 4 This is a rear view of the present invention; Figure 5 This is a side view of the present invention.

[0014] In the diagram: 1. Switch mounting frame; 2. Outer frame; 3. Second protective component; 301. Fixed shaft; 302. Spring coiler; 303. Curtain; 304. Fixed hook; 305. Suspension hook; 4. Barrier frame; 5. First protective component; 501. Support shaft; 502. Driven wheel; 503. Linkage rod; 504. Louvered baffle; 505. Handle; 506. Drive belt; 6. Transparent protective cover; 7. Drive wheel; 8. Reversing hook; 9. Panel. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-5 The present invention provides a technical solution as follows: Example 1: A switch cabinet baffle with anti-misoperation function includes a switch mounting frame 1, an outer frame 2 fixedly connected to the outer wall of the switch mounting frame 1, a second protective component 3 installed inside the outer frame 2, a barrier frame 4 fixedly connected to the outer wall of the outer frame 2, a first protective component 5 installed inside the barrier frame 4, a transparent protective cover 6 installed on the front pivot of the barrier frame 4, a drive wheel 7 connected to the outer wall bearing of the outer frame 2, a reversing hook 8 fixedly connected to the outer wall of the drive wheel 7, and a panel 9 installed on the outer wall of the barrier frame 4.

[0017] The above structure uses the switch mounting frame 1 as the basic load-bearing component to fix the electrical components inside the switch cabinet. Its outer wall is rigidly connected to the outer frame 2 to form an overall support structure.

[0018] Furthermore, the first protective component 5 internally includes a support shaft 501, a driven wheel 502, a linkage rod 503, a louvered baffle 504, a handle 505, and a drive belt 506. The support shaft 501 is mounted on a bearing on the inner side of the barrier frame 4. The driven wheel 502 is mounted on one end of the support shaft 501, and the linkage rod 503 is connected to the other end of the support shaft 501. The louvered baffle 504 is connected to the inner side of the linkage rod 503 via a connecting rod shaft. The handle 505 is mounted on one end of the support shaft 501, and the drive belt 506 is provided on the outer wall of the driven wheel 502. The support shaft 501 penetrates the barrier frame 4, and the louvered baffle... Three sets of 504 are arranged in parallel inside the partition frame 4. A copper bearing sleeve is installed at the connecting rod shaft of the linkage rod 503 and the louvered baffle 504. The edge of the louvered baffle 504 is provided with an arc transition angle. Sealing strips are pasted on the contact edges of two adjacent sets of louvered baffles 504. The driven wheel 502 is connected to the drive wheel 7 through the drive belt 506. The drive belt 506 is a polyurethane synchronous belt. The teeth of the driven wheel 502 and the drive wheel 7 are engaged with the tooth grooves of the synchronous belt. A tensioning wheel is provided on the inner side of the drive belt 506. The tensioning wheel is fixed to the inner wall of the partition frame 4 by a bracket.

[0019] The above structure uses two symmetrically distributed support shafts 501 as rotation fulcrums, and in conjunction with adjustable length linkage rods 503, achieves synchronous drive control of three sets of louvered baffles 504. In the transmission system, the driven wheel 502 forms a closed-loop transmission structure with the drive wheel 7 through a high-strength drive belt 506. When the drive wheel 7 receives an operation command, it drives the driven wheel 502 to rotate synchronously through belt tension, thereby driving the support shafts 501 to rotate, achieving synchronous opening and closing of the louvered baffles 504. This design not only constructs a physical level of isolation barrier, but also forms an operation permission constraint mechanism through mechanical interlocking principle, effectively preventing safety hazards caused by unauthorized operation.

[0020] Furthermore, the second protective component 3 internally includes a fixed shaft 301, a spring coiler 302, a curtain 303, a fixed hook 304, and a suspension hook 305. The fixed shaft 301 is installed through the interior of the outer frame 2. A spring coiler 302 is installed on the inner side of the fixed shaft 301. The output end of the spring coiler 302 is fixedly connected to the curtain 303. One end of the fixed shaft 301 is fixedly connected to a fixed hook 304, and the top of the curtain 303 is fixedly connected to a suspension hook 305. 5. The two ends of the fixed shaft 301 are rotatably connected to the inner wall of the outer frame 2 through bearing seats. The bearing seats are provided with dustproof sealing rings, and the outer wall of the fixed shaft 301 is provided with an annular groove to limit the installation position of the coil spring 302. The end of the fixed hook 304 is provided with a limiting protrusion. When the fixed hook 304 is engaged with the reversing hook 8, the limiting protrusion abuts against the inner side of the reversing hook 8. The bottom edge of the curtain 303 is sewn with a weight strip, which is a flexible metal strip.

[0021] The aforementioned structure is powered by the torque energy storage mechanism built into the spring coiler 302, which drives the curtain 303 to smoothly unfold or retract along the slide rail. The suspension hooks 305 set on the edge of the curtain 303 are precisely engaged with the inverted hooks 8 distributed in a circular array on the drive wheel 7, forming a two-level isolation protection system with double mechanical locking. This protection component and the first protection component 5 are interlocked in operation through the mechanical linkage rod 503: when the curtain 303 is not fully closed, the operating handle 505 of the first protection component 5 is locked and cannot be rotated; conversely, if the first protection component 5 is in the unlocking operation, the drive of the spring coiler 302 is interrupted, preventing the curtain 303 from retracting, thereby eliminating the risk of misoperation from a physical perspective.

[0022] Working principle: When in use, the operator first opens the transparent protective cover 6. Its damping hinge ensures a smooth opening process. Turn the handle 505 clockwise, and the support shaft 501 drives the linkage rod 503 to rotate. The three sets of louvered baffles 504 simultaneously flip outward to open to a maximum opening angle of 90°. The driven wheel 502 at the other end of the support shaft 501 drives the drive wheel 7 to rotate synchronously through the drive belt 506. The reversing hook 8 rotates with the drive wheel 7 to the vertical downward position. Pull the suspension hook 305 at the top of the curtain 303 to overcome the tension of the coil spring 302 and hook it onto the reversing hook 8. The limiting protrusion abuts against the inside of the reversing hook 8 to prevent it from falling off. The curtain 303 hangs down naturally under the action of the weight bar, covering the inner area of ​​the outer frame 2. Next, to close the operation, first disconnect the suspension hook 305 from the reversing hook 8. The spring coiler 302 automatically retracts the curtain 303 and wraps it around the fixed shaft 301. Turn the handle 505 counterclockwise, and the louvered baffle 504 rotates in the opposite direction to close. The sealing strip ensures that there are no gaps after closing. The driven wheel 502 drives the drive wheel 7 to reset through the drive belt 506. The reversing hook 8 rotates to the horizontal position and disengages from the suspension hook 305. Close the transparent protective cover 6. The magnetic strip ensures that the cover fits tightly. Finally, if the louvered baffle 504 is not fully opened, the drive wheel 7 will not rotate to the preset angle, and the reversing hook 8 will be in an inclined state and will not be able to engage with the suspension hook 305, thus forcibly preventing the curtain 303 from opening prematurely. If the curtain 303 is not retracted and the suspension hook 305 is still engaged, the reversing hook 8 will be restrained and unable to rotate, causing the handle 505 to be unable to rotate in the reverse direction, thus preventing the louvered baffle 504 from closing and avoiding the misoperation of "closing the main baffle without removing the secondary protection".

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A switch cabinet baffle with anti-misoperation function, comprising a switch mounting frame (1), characterized in that: The outer wall of the switch mounting frame (1) is fixedly connected to an outer frame (2), the inner wall of the outer frame (2) is equipped with a second protective component (3), the outer wall of the outer frame (2) is fixedly connected to a barrier frame (4), the inner wall of the barrier frame (4) is equipped with a first protective component (5), the front pivot of the barrier frame (4) is equipped with a transparent protective cover (6), the outer wall of the outer frame (2) is connected to a drive wheel (7), the outer wall of the drive wheel (7) is fixedly connected to a reverse hook (8), and the outer wall of the barrier frame (4) is equipped with a panel (9).

2. A switchgear baffle with anti-misoperation function according to claim 1, characterized in that: The first protective component (5) includes a support shaft (501), a driven wheel (502), a linkage rod (503), a louvered baffle (504), a handle (505), and a drive belt (506). The inner bearing of the barrier frame (4) is equipped with the support shaft (501). One end of the support shaft (501) is equipped with the driven wheel (502), and the other end of the support shaft (501) is connected to the linkage rod (503). The inner side of the linkage rod (503) is connected to the louvered baffle (504) through a connecting rod shaft. One end of the support shaft (501) is equipped with a handle (505), and the outer wall of the driven wheel (502) is provided with a drive belt (506).

3. A switchgear baffle with anti-misoperation function according to claim 2, characterized in that: The support shaft (501) passes through the barrier frame (4), and there are three sets of louvered baffles (504) arranged in parallel inside the barrier frame (4). A copper bearing sleeve is installed at the connecting rod shaft of the linkage rod (503) and the louvered baffle (504), and the edge of the louvered baffle (504) is provided with an arc transition angle. Sealing strips are pasted on the contact edges of two adjacent sets of louvered baffles (504).

4. A switchgear baffle with anti-misoperation function according to claim 2, characterized in that: The driven wheel (502) is connected to the drive wheel (7) via a drive belt (506). The drive belt (506) is a polyurethane synchronous belt, and the teeth of the driven wheel (502) and the drive wheel (7) mesh with the tooth groove of the synchronous belt. A tension wheel is provided on the inner side of the drive belt (506), and the tension wheel is fixed to the inner wall of the barrier frame (4) by a bracket.

5. A switchgear baffle with anti-misoperation function according to claim 1, characterized in that: The interior of the second protective component (3) includes a fixed shaft (301), a coil spring (302), a curtain (303), a fixed hook (304), and a suspension hook (305). The fixed shaft (301) is installed through the interior of the outer frame (2). The coil spring (302) is installed on the inner side of the fixed shaft (301). The curtain (303) is fixedly connected to the output end of the coil spring (302). The fixed hook (304) is fixedly connected to one end of the fixed shaft (301). The suspension hook (305) is fixedly connected to the top of the curtain (303).

6. A switchgear baffle with anti-misoperation function according to claim 5, characterized in that: The two ends of the fixed shaft (301) are rotatably connected to the inner wall of the outer frame (2) through bearing seats. The bearing seats are provided with dustproof sealing rings, and the outer wall of the fixed shaft (301) is provided with an annular groove to limit the installation position of the coil spring (302).

7. A switchgear baffle with anti-misoperation function according to claim 5, characterized in that: The fixed hook (304) has a limiting protrusion at its end. When the fixed hook (304) is hooked with the inverted hook (8), the limiting protrusion abuts against the inner side of the inverted hook (8). The bottom edge of the curtain (303) is sewn with a weight strip, which is a flexible metal strip.

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