Electric control cabinet cover plate fixing device

Abstract

The utility model discloses an electric control cabinet cover plate fixing device which comprises an electric control cabinet and a cover plate, empty grooves are formed in the two sides of the electric control cabinet, holes are formed in the positions, corresponding to the empty grooves, of the cover plate, a locking structure is arranged on the cover plate, and the locking structure comprises a pull handle, a pull rod, a moving block, a displacement rod, a rotating strip and a clamping block. The locking structure penetrates through the hole in the cover plate and penetrates into the empty groove. According to the fixing device for the cover plate of the electric control cabinet, the empty groove is formed in the front wall of the electric control cabinet, the pull handle is pulled upwards to enable the rotating strip to rotate downwards and enable the clamping block to be folded inwards, then the locking structure is integrally placed in the empty groove, then the pull handle is loosened, the displacement rod moves downwards under the action of the spring, the rotating strip rotates outwards, the fixing plate is driven to expand outwards, and the cover plate is fixed. Therefore, the cover plate does not need to be fixed through bolts any more and is convenient to disassemble and assemble, and operation of workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a device for fixing a cover plate of an electric control cabinet. Background Art

[0002] An electrical control cabinet (box) is a device that assembles switchgear, measuring instruments, protective devices, and auxiliary equipment in an enclosed or semi-enclosed metal cabinet or on a screen according to electrical wiring requirements. Its layout should meet the requirements for normal power system operation, facilitate maintenance, and protect personnel and surrounding equipment. These control cabinets include distribution cabinets, distribution boxes, and electrical control cabinets. During normal operation, they can connect and disconnect circuits using manual or automatic switches. In the event of a fault or abnormal operation, protective devices disconnect the circuit or generate an alarm. Measuring instruments can display various operating parameters, adjust certain electrical parameters, and provide warnings or signals indicating deviations from normal operating conditions. These control cabinets are commonly used in power generation, distribution, and substations.

[0003] The photovoltaic system's electrical control cabinet integrates electrical control components such as switches and fuses. Its cover is usually fixed with bolts. When inspecting and operating the system, tools are needed to remove the bolts and remove the cover, which makes disassembly and assembly inefficient. At the same time, due to the poor on-site environment, fasteners such as bolts and gaskets often scatter, making operation very inconvenient.

[0004] This case was created to solve the above problems. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies in the prior art, the present invention provides a device for fixing a cover plate of an electric control cabinet, which solves the problems raised in the above-mentioned background technology.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a device for fixing the cover of an electric control cabinet, comprising an electric control cabinet and a cover, wherein empty slots are opened on both sides of the electric control cabinet, and holes are provided on the cover corresponding to the positions of the empty slots, and a locking structure is provided on the cover, wherein the locking structure comprises a handle, a pulling rod, a moving block, a displacement rod, a rotating bar, a card and a block, and the locking structure passes through the hole on the cover and penetrates into the empty slot.

[0009] Preferably, a pulling rod is fixedly connected to the bottom surface of the handle, the pulling rod passes through the grip block, a moving block is fixedly connected to the bottom of the pulling rod, and a spring is wrapped around the outer wall of the portion of the pulling rod passing through the grip block.

[0010] Preferably, two ends of the spring are fixedly connected to the bottom of the gripping block and the top of the moving block respectively, and the bottom of the moving block is fixedly connected to a displacement rod.

[0011] Preferably, four fixing plates are provided on the circumferential direction of the displacement rod, one end of the rotating bar is rotatably connected to the fixing plate, and the other end of the rotating bar is fixedly connected to the connection.

[0012] Preferably, the front side surface of the connecting block is fixedly connected with a card and a block, and there are four of the card and the block, and the four card and the block are arc-shaped, with the arc surfaces all facing outwards.

[0013] Preferably, the width of the empty slot is greater than the width of the moving block.

[0014] (3) Beneficial effects

[0015] After adopting the above technical solution, the utility model has the following advantages compared with the existing technology: the utility model provides a fixing device for the cover of an electric control cabinet, with an empty slot opened on the front wall of the electric control cabinet. By pulling the handle upward, the rotating bar is rotated downward, the card and the block are retracted inward, and then the locking structure is placed into the empty slot as a whole. Then the handle is released, and the displacement rod moves downward under the action of the spring, and the rotating bar rotates outward, driving the fixing plate to expand outward, clamping the upper top surface of the empty slot to achieve fixation, so that the cover no longer needs to be fixed by bolts and is easy to disassemble and assemble, which is convenient for staff to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the utility model without a cover plate;

[0018] Figure 3 This is a top view of the locking structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the expansion of the card and block of the utility model;

[0020] Figure 5 This is a schematic diagram of the locking structure of the utility model.

[0021] In the figure: 1. Electric control cabinet; 2. Cover plate; 3. Grip block; 4. Handle; 5. Pull rod; 6. Spring; 7. Moving block; 8. Displacement rod; 9. Rotating bar; 10. Card and block; 11. Fixed plate; 12. Connecting block; 13. Empty slot. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below through the accompanying drawings and examples.

[0023] like Figure 1-5As shown: A device for fixing the cover of an electric control cabinet, comprising an electric control cabinet 1 and a cover 2. Empty slots 13 are provided on both sides of the electric control cabinet 1. Holes are provided on the cover 2 at positions corresponding to the empty slots 13. A locking structure is provided on the cover 2. The locking structure comprises a pull handle 4, a pull rod 5, a moving block 7, a displacement rod 8, a rotating bar 9, a card and a block 10. The locking structure passes through the hole on the cover 2 and penetrates into the empty slot 13. In the initial state, the spring 6 is relaxed, each rotating bar 9 is tilted outward, and the card and block 10 are in an expanded state. Pulling the pull handle 4 upward drives the pull rod 5 to move upward as a whole. At this time, the moving block 7 and the displacement rod 8 all move upward as a whole, driving the fixed plate 11 to move upward. Since the card and block 10 themselves have a certain weight, Therefore, in the process of the displacement rod 8 and the fixed plate 11 rising, the rotating bar 9 is driven to deflect downward at the rotation connection between the rotating bar 9 and the displacement rod 8. At this time, the card and block 10 are retracted inward, and the locking structure is placed through the hole into the empty slot 13, and the handle 4 is released. At this time, under the action of the elastic force of the spring 6 to restore the expansion, the moving block 7 and the displacement rod 8 are driven to move downward. You can also press the handle 4 directly downward with your hand. At this time, the rotating bar 9 is driven to deflect upward at the rotation connection between the rotating bar 9 and the displacement rod 8, and multiple cards and blocks 10 expand outward. The cards and blocks 10 are against the top surface of the empty slot 13 where it changes from narrow to wide. At this time, the grip block 3 is pressed on the cover plate 2 to achieve a fixed limit between the cover plate 2 and the electrical control cabinet 1.

[0024] The bottom surface of the pull handle 4 is fixedly connected to a pull rod 5, which passes through the grip block 3. The bottom of the pull rod 5 is fixedly connected to a moving block 7. The part of the outer wall of the pull rod 7 that passes through the grip block 3 is wrapped with a spring 6. Under the action of the elastic force of the spring 6 itself, the initial position of the displacement block 7 and the displacement rod 8 is ensured, that is, the card and block 10 are in the state of expanding outward. When disassembling, the pull handle 4 is lifted upward to drive the moving block 7 and the displacement rod 8 to move upward. In the expanded state, the card and block 10 leave a little distance from the top surface of the slot 13 where it changes from narrow to wide, so that the card and block 10 can gradually close and return to the closed state during the rising process of the displacement rod 8. Then the locking structure can be taken out to complete the separation of the cover plate 2 and the electrical control cabinet 1.

[0025] The two ends of the spring 6 are fixedly connected to the bottom of the gripping block 3 and the top of the moving block 7 respectively. The bottom of the moving block 7 is fixedly connected to a displacement rod 8.

[0026] Four fixed plates 11 are provided on the circumference of the displacement rod 8. One end of the rotating bar 9 is rotatably connected to the fixed plate 11. The other end of the rotating bar 9 is fixedly connected to the connecting block 12. When the rotating bar 9 rotates, the other end drives the connecting block 12 to move up and down, thereby realizing the expansion and contraction of the card and block 10.

[0027] The front side of the connecting block 12 is fixedly connected with a card and block 10. There are four cards and blocks 10. The four cards and blocks 10 are arc-shaped, and the arc surfaces are all facing outwards. The cards and blocks 10 themselves have a certain thickness.

[0028] The width of the slot 13 is greater than the width of the movable block 7, and the interior of the slot 13 is convex. When the card and block 10 extend into the wider part of the slot 13, the rotating bar 9 rotates to cause the card and block 10 to expand outward. At this time, the card and block 10 and the slot 13 are offset from the narrow to wide part, making it impossible to pull out the locking structure, thereby achieving the role of fixed limit.

[0029] The above description is based on the embodiments for inspiration. Through the above description, relevant personnel can make various changes and modifications without departing from the scope of the invention. The technical scope of this new type of use is not limited to the content of the specification, and its protection scope must be determined according to the scope of the claims.

Claims

1. A device for fixing a cover plate of an electric control cabinet, comprising an electric control cabinet (1) and a cover plate (2), characterized in that: Empty slots (13) are provided on both sides of the electric control cabinet (1); holes are provided on the cover plate (2) at positions corresponding to the empty slots (13); a locking structure is provided on the cover plate (2); the locking structure comprises a pull handle (4), a pull rod (5), a moving block (7), a displacement rod (8), a rotating bar (9), a card and a block (10); the locking structure passes through the hole on the cover plate (2) and penetrates into the empty slot (13).

2. The electric control cabinet cover fixing device according to claim 1, characterized in that: The bottom surface of the pull handle (4) is fixedly connected to a pulling rod (5), the pulling rod (5) passes through the gripping block (3), the bottom of the pulling rod (5) is fixedly connected to a moving block (7), and the outer wall of the portion of the pulling rod (5) passing through the gripping block (3) is wrapped with a spring (6).

3. The electric control cabinet cover fixing device according to claim 2, characterized in that: The two ends of the spring (6) are fixedly connected to the bottom of the gripping block (3) and the top of the moving block (7), respectively. The bottom of the moving block (7) is fixedly connected to a displacement rod (8).

4. The electric control cabinet cover fixing device according to claim 3, characterized in that: Four fixed plates (11) are provided on the circumference of the displacement rod (8), one end of a rotating bar (9) is rotatably connected to the fixed plate (11), and the other end of the rotating bar (9) is fixedly connected to a connecting block (12).

5. The electric control cabinet cover fixing device according to claim 4, characterized in that: The front side of the connecting block (12) is fixedly connected with a card and block (10), and there are four cards and blocks (10). The four cards and blocks (10) are arc-shaped, and the arc surfaces all face outwards.

6. The electric control cabinet cover fixing device according to claim 1, characterized in that: The width of the empty slot (13) is greater than the width of the moving block (7).

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