A reinforced grounding device for electrical cabinets

Abstract

The application discloses a kind of electrical cabinet reinforcing grounding device, including machine body, machine body is connected with upper support, and machine body is equipped with the cavity and sliding slot being communicated;Rotary connection is connected with the longitudinal rotation axis and transverse rotation axis of linkage in cavity;Longitudinal rotation axis and transverse rotation axis are all connected with the clamping plate for clamping electrical cabinet side end;It also includes placement plate, meshing rotary gear and driving rack, placement plate is connected with driving rack, and driving rack is slidably connected with sliding slot;Rotary gear is arranged on longitudinal rotation axis;Lower part of machine body is equipped with grounding mechanism, and placement plate and grounding mechanism are corresponding and constitute grounding loop structure.The electrical cabinet reinforcing grounding device provided by the application solves the problem that the electrical cabinet placed on the grounding device is easily knocked over by external force in the prior art.

Description

Technical Field

[0001] This invention relates to the field of electrical cabinet grounding device technology, and in particular to an electrical cabinet reinforced grounding device. Background Technology

[0002] A grounding device can guide the leakage current of an electrical cabinet to the ground, thereby preventing electric shock to workers and reducing the probability of workplace injuries. A reinforced grounding device for a power plant electrical cabinet, disclosed in Chinese Patent Publication No. CN214281786U, includes a ground surface. An alloy shell is connected to the inner side of one end of the ground surface, and a first graphite powder is in contact with the outer end face of one end of the alloy shell. The outer side of one end of the first graphite powder is in contact with the inner side of one end of the ground surface. This solution provides stable fixation of the grounding device to the ground, allowing for quick installation without the cumbersome cement pouring method, and ensuring excellent conductivity after the grounding device is fixed to the ground. However, due to structural limitations, the following problems still exist during use: 1) When placing the electrical cabinet on the grounding device, the grounding circuit specifications required by the electrical cabinet are different, and the size specifications are often proportional to the operating power of the electrical cabinet. However, taking the above-mentioned scheme as an example, most of the existing electrical cabinet equipment is in a fixed state and cannot be easily replaced. 2) The grounding post needs to be replaced before the electrical cabinet is placed, which is very inconvenient during use; and when placing the electrical cabinet, the grounding device is used to raise the electrical cabinet, thereby changing the center of gravity of the electrical cabinet. Without the corresponding clamping mechanism, the electrical cabinet is very easy to be knocked over by external force, causing damage to the internal components of the electrical cabinet. Summary of the Invention

[0003] The purpose of this invention is to provide an electrical cabinet reinforcement grounding device to solve the problem that electrical cabinets placed on grounding devices in the prior art are easily tipped over by external impacts.

[0004] To achieve the above objectives, the present invention provides an electrical cabinet reinforcement grounding device, comprising a body with an upper support connected thereto, and a cavity and a slide groove connected in communication on the body; a longitudinal rotating shaft and a transverse steering shaft are rotatably connected in the cavity; clamping plates for clamping the side ends of the electrical cabinet are connected to both the longitudinal rotating shaft and the transverse steering shaft; the device also includes a placement plate, a meshing rotating gear and a drive rack, the placement plate being connected to the drive rack, and the drive rack being slidably engaged with the slide groove; the rotating gear is mounted on the longitudinal rotating shaft; a grounding mechanism is provided at the lower part of the body, and the placement plate and the grounding mechanism are vertically aligned and form a grounding circuit structure.

[0005] As a further improvement of the present invention, a first bevel gear is provided on the longitudinal rotation shaft, and a second bevel gear is provided on the transverse steering shaft, and the first bevel gear meshes with the second bevel gear; there are two longitudinal rotation shafts and two transverse steering shafts; one first bevel gear and one second bevel gear constitute a transmission group, and two transmission groups are provided in the cavity, which are symmetrically arranged diagonally in the cavity; and four clamping plates are provided.

[0006] As a further improvement of the present invention, the grounding mechanism includes a movable plate and a long slot disposed on the machine body, the movable plate and the long slot being slidably engaged, and also includes a spring connecting the movable plate and the long slot; the bottom of the placement plate is provided with a metal cylinder, the top and bottom of the movable plate are respectively provided with a connecting hole and a grounding post, the metal cylinder and the connecting hole being vertically aligned; the number of grounding posts is three.

[0007] As a further improvement of the present invention, the bottom end of the metal cylinder is provided with a contact point, and the connection hole is provided with three parallel contact circuits arranged sequentially from top to bottom. The three contact circuits are respectively in contact with the contact point. The three grounding posts are respectively arranged at equal intervals in a straight line according to their thickness and size, and the three grounding posts are respectively electrically connected to the three contact circuits.

[0008] As a further improvement of the present invention, a locking mechanism is provided between the upper bracket and the clamping plate for locking the clamping plate in the state after clamping the electrical cabinet.

[0009] As a further improvement of the present invention, the locking mechanism includes a telescopic rod, a first guide groove and a second guide groove disposed on the upper bracket; a push plate is slidably fitted on the first guide groove, and a locking plate is slidably fitted on the second guide groove, the locking plate being provided with a locking block adapted to the clamping plate; the left end and the lower end of the locking plate are both movable against the push plate; both ends of the telescopic rod are connected to the clamping plate and the push plate respectively through universal joints.

[0010] As a further improvement of the present invention, the first guide groove is inclined; the second guide groove is inverted V-shaped.

[0011] Beneficial effects Compared with the prior art, the advantages of the electrical cabinet reinforcement grounding device of the present invention are: 1. Under the weight of the electrical cabinet, the placement plate slides downwards, while the rack and pinion mesh with the rotating gears. The first and second bevel gears mesh with each other, driving the longitudinal and transverse rotating shafts to rotate respectively. This causes the four clamping plates to deflect inwards and clamp and fix the side of the electrical cabinet, preventing the electrical cabinet from tipping over due to external impacts, thus improving safety.

[0012] 2. When the locking plate moves into the right end of the second guide groove, the clamping plate deflects inward from the vertical position. At the same time, the telescopic rod drives the push plate to slide downward in the first guide groove. When the clamping plate deflects inward to abut against the electrical cabinet, the locking plate slides downward and locks itself with the upper end of the clamping plate through the latch block to stabilize the clamping state of the clamping plate and effectively prevent the clamping plate from shaking.

[0013] 3. By equidistantly setting three contact circuits in the connection hole, the metal cylinder moves down a different distance in the connection hole according to the different weights of the electrical cabinets on the placement board, so that electrical cabinets of different weights can be connected to grounding posts of different thicknesses to achieve the best grounding effect.

[0014] The invention will become clearer from the following description, taken in conjunction with the accompanying drawings, which are used to explain embodiments of the invention. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure for reinforcing the grounding device of the electrical cabinet; Figure 2 A top view of the grounding device for reinforcing the electrical cabinet; Figure 3 A top-section schematic diagram of a grounding device for reinforcing an electrical cabinet; Figure 4 for Figure 3 Enlarged schematic diagram of part A of the structure; Figure 5 for Figure 3 Enlarged schematic diagram of part B structure; Figure 6 Main cross-sectional view of the grounding device for reinforcing electrical cabinets; Figure 7 for Figure 6 Enlarged schematic diagram of part C; Figure 8 A schematic diagram of the initial state of the push plate and locking plate of the grounding device for reinforcing the electrical cabinet; Figure 9 A schematic diagram showing the movement of the push plate and locking plate of the grounding device for reinforcing the electrical cabinet; Figure 10 A schematic diagram showing the termination state of the push plate and locking plate of the grounding device for reinforcing the electrical cabinet. Detailed Implementation

[0017] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0018] Example Specific embodiments of the present invention are as follows: Figures 1 to 10 As shown, an electrical cabinet reinforcement grounding device includes a body 1, with an upper support 2 connected to the body 1. The body 1 has a communicating cavity 3 and a sliding groove 4. A longitudinal rotating shaft 5 and a transverse steering shaft 6 are rotatably connected in the cavity 3. Clamping plates 12 for clamping the side ends of the electrical cabinet are connected to both the longitudinal rotating shaft 5 and the transverse steering shaft 6. The electrical cabinet reinforcement grounding device also includes a placement plate 11, a meshing rotating gear 9, and a drive rack 10. The placement plate 11 is connected to the drive rack 10, and the drive rack 10 is slidably engaged with the sliding groove 4. The rotating gear 9 is mounted on the longitudinal rotating shaft 5. A grounding mechanism is provided at the lower part of the body 1, and the placement plate 11 and the grounding mechanism correspond vertically and form a grounding circuit structure.

[0019] Under the gravity of the electrical cabinet, the placement plate 11 causes the rotating gear 9 to mesh with the drive rack 10, and at the same time, the first bevel gear 7 and the second bevel gear 8 mesh with each other to drive the clamping plate 12 to deflect inward and clamp the side of the electrical cabinet to prevent the electrical cabinet from tilting and collapsing due to external impact.

[0020] The number of circuits in an electrical cabinet is related to the size of the cabinet. The larger the cabinet, the larger its internal space, and the more circuits can be placed in the space. Therefore, the electrical cabinet has a higher operating power.

[0021] A first bevel gear 7 is mounted on the longitudinal rotation shaft 5, and a second bevel gear 8 is mounted on the transverse steering shaft 6. The first bevel gear 7 and the second bevel gear 8 mesh with each other. There are two longitudinal rotation shafts 5 and two transverse steering shafts 6. One first bevel gear 7 and one second bevel gear 8 form a transmission group, and two transmission groups are arranged in the cavity 3. The two transmission groups are symmetrically arranged in the cavity 3 in a diagonal manner, and four clamping plates 12 are provided.

[0022] The grounding mechanism includes a movable plate 15 and a long slot 13 mounted on the body 1. The movable plate 15 and the long slot 13 are slidably fitted together. It also includes a spring 14 connecting the movable plate 15 and the long slot 13. A metal cylinder 16 is provided at the bottom of the placement plate 11. A connection hole 17 and a grounding post 18 are respectively provided at the top and bottom of the movable plate 15, with the metal cylinder 16 corresponding vertically to the connection hole 17. There are three grounding posts 18.

[0023] The metal cylinder 16 has a contact point at its bottom end. Three parallel contact circuits are arranged sequentially from top to bottom in the connection hole 17. Each of the three contact circuits abuts against the contact point. Three grounding posts 18 are equidistantly spaced in a straight line according to their thickness and size, and are electrically connected to the three contact circuits. The metal cylinder 16, connection hole 17, and grounding posts 18 work together to guide current flow to the ground.

[0024] A locking mechanism is provided between the upper bracket 2 and the clamping plate 12 to lock the clamping plate 12 in the state after clamping the electrical cabinet.

[0025] The locking mechanism includes a telescopic rod 24 and a first guide groove 19 and a second guide groove 20 disposed on the upper bracket 2. A push plate 21 is slidably fitted on the first guide groove 19, and a locking plate 22 is slidably fitted on the second guide groove 20. The locking plate 22 is provided with a locking block 23 adapted to the clamping plate 12. The locking block 23 is integrally formed at the lower end of the locking plate 22 and is used to lock the clamping plate 12. The left and lower ends of the locking plate 22 are both movable against the push plate 21. The two ends of the telescopic rod 24 are connected to the clamping plate 12 and the push plate 21 respectively through universal joints.

[0026] The first guide groove 19 is inclined. The second guide groove 20 is inverted V-shaped. (See attached...) Figure 8 As shown, the inclination of the first guide groove 19 is greater than that of the left end of the second guide groove 20. When the push plate 21 moves upward, it exerts an upward and rightward force on the locking plate 22, causing the locking plate 22 to move into the right end of the second guide groove 20 and then move downward. The locking plate 22 is locked with the clamping plate 12 by the locking block 23 to stabilize the clamping state of the clamping plate 12.

[0027] The push plate 21 and the locking plate 22 are slidably sleeved in the first guide groove 19 and the second guide groove 20, respectively. The push plate 21 moves against the left end and the lower end of the locking plate 22, respectively. After the push plate 21 pushes the locking plate 22 to the right end of the second guide groove 20, the push plate 21 and the locking plate 22 separate.

[0028] The clips 23 are equidistantly distributed on the locking plate 22. When the clamping plate 12 clamps different electrical cabinets, the deflection angle of the clamping plate 12 is different, so that the clamping plate 12 is locked on different clips 23.

[0029] The functional principle of this invention can be explained through the following operational methods: 1) Place the electrical cabinet on the placement plate 11. Under the weight of the electrical cabinet, the placement plate 11 slides downward, which in turn drives the drive rack 10 to slide downward in the slide groove 4. The drive rack 10 meshes with the rotating gear 9, which drives the longitudinal rotating shaft 5 to rotate. The longitudinal rotating shaft 5 drives the first bevel gear 7 to rotate. The first bevel gear 7 and the second bevel gear 8 mesh to drive the transverse rotating shaft 6 to rotate, causing the four clamping plates 12 to deflect inward and clamp the side of the electrical cabinet. 2) When the clamping plate 12 clamps the electrical cabinet, it drives the clamping plate 12, which was originally in a horizontal state, to move to a vertical state, and drives the telescopic rod 24 to move to the highest point. The telescopic rod 24 drives the push plate 21 to slide upward in the first guide groove 19. Since the inclination of the first guide groove 19 is greater than that of the left end of the second guide groove 20, the push plate 21 applies a rightward and upward force to the locking plate 22 when it moves upward. When the locking plate 22 moves to the top of the left end of the second guide groove 20, it moves to the right end of the second guide groove 20 under the push of the push plate 21 and slides downward. 3) When the locking plate 22 moves into the right end of the second guide groove 20, the clamping plate 12 deflects inward from the vertical position and pulls the telescopic rod 24 to lengthen it. At the same time, the telescopic rod 24 drives the push plate 21 to slide downward in the first guide groove 19. When the clamping plate 12 deflects inward to abut against the electrical cabinet, the locking plate 22 slides downward and is locked to the upper end of the clamping plate 12 by the latch 23 to stabilize the clamping state of the clamping plate 12. 4) When the placement plate 11 slides downward, the placement plate 11 drives the metal cylinder 16 to move downward and moves the metal cylinder 16 into the connection hole 17, so that the contact point on the metal cylinder 16 contacts the contact circuit of the connection hole 17, so that the placement plate 11, the metal cylinder 16 and the grounding post 18 form a circuit, and drive the moving plate 15 to slide downward in the long groove 13. The moving plate 15 pulls the spring 14, so that the grounding post 18 contacts the ground and guides the current to the ground.

[0030] It should be noted that three contact circuits are equidistantly arranged in the connection hole 17. Depending on the weight of the electrical cabinet on the placement plate 11, the metal cylinder 16 moves down a different distance in the connection hole 17, so that electrical cabinets of different weights can be connected to grounding posts 18 of different thicknesses to achieve the best grounding effect.

[0031] When removing the electrical cabinet, first move the locking plate 22 upward, then remove the electrical cabinet. Under the elastic force of the spring 14, the placement plate 11 moves upward, causing the clamping plate 12 to deflect to a horizontal state. Finally, the locking plate 22 is placed on the upper end of the push plate 21 and abuts against the push plate 21.

[0032] In practical use, the electrical cabinet grounding reinforcement device can be equipped with a locking mechanism or not. When a locking mechanism is installed, the stability of the clamping plate in the clamping state is better.

[0033] The present invention has been described above in conjunction with the preferred embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations made in accordance with the essence of the present invention.

Claims

1. An electrical cabinet reinforcement grounding device, comprising a body (1), characterized in that, The machine body (1) is connected to an upper bracket (2), and the machine body (1) is provided with a cavity (3) and a slide (4) that are connected to each other; a longitudinal rotating shaft (5) and a transverse turning shaft (6) are rotatably connected in the cavity (3); a clamping plate (12) for clamping the side end of the electrical cabinet is connected to both the longitudinal rotating shaft (5) and the transverse turning shaft (6); it also includes a placement plate (11), a meshing rotating gear (9) and a drive rack (10), the placement plate (11) is connected to the drive rack (10), and the drive rack (10) is connected to the drive rack (9). The slide groove (4) is in sliding fit with the slide groove (4); the rotating gear (9) is set on the longitudinal rotating shaft (5); the lower part of the body (1) is provided with a grounding mechanism, and the placement plate (11) is vertically aligned with the grounding mechanism and forms a grounding circuit structure; the longitudinal rotating shaft (5) is provided with a first bevel gear (7), and the transverse turning shaft (6) is provided with a second bevel gear (8), and the first bevel gear (7) and the second bevel gear (8) mesh with each other; the longitudinal rotating shaft (5) and the transverse turning shaft (6) are both two in number; one first bevel gear (7) and A second bevel gear (8) forms a transmission group, and two transmission groups are provided in the cavity (3). The two transmission groups are symmetrically arranged diagonally in the cavity (3). Four clamping plates (12) are provided. A locking mechanism for locking the clamping plate (12) in the state of clamping the electrical cabinet is provided between the upper bracket (2) and the clamping plate (12). The locking mechanism includes a telescopic rod (24), a first guide groove (19) and a second guide groove (20) provided in the upper bracket (2). (19) has a push plate (21) slidingly fitted on it, and a locking plate (22) slidingly fitted on the second guide groove (20). The locking plate (22) has a locking block (23) that is compatible with the clamping plate (12). The left and lower ends of the locking plate (22) are in contact with the push plate (21). The two ends of the telescopic rod (24) are connected to the clamping plate (12) and the push plate (21) respectively through universal joints. The first guide groove (19) is inclined. The second guide groove (20) is inverted V-shaped.

2. The electrical cabinet reinforcement grounding device according to claim 1, characterized in that, The grounding mechanism includes a movable plate (15) and a long slot (13) set on the body (1). The movable plate (15) and the long slot (13) are slidably engaged. The mechanism also includes a spring (14) connected between the movable plate (15) and the long slot (13). The bottom of the placement plate (11) is provided with a metal cylinder (16). The top and bottom of the movable plate (15) are respectively provided with a connecting hole (17) and a grounding post (18). The metal cylinder (16) and the connecting hole (17) are vertically aligned. The number of grounding posts (18) is three.

3. The electrical cabinet reinforcement grounding device according to claim 2, characterized in that, The metal cylinder (16) has a contact point at its bottom end. The connection hole (17) has three parallel contact circuits arranged from top to bottom. The three contact circuits move against the contact point. The three grounding posts (18) are arranged at equal intervals in a straight line according to their thickness and size. The three grounding posts (18) are electrically connected to the three contact circuits respectively.

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