Power control box

Abstract

The invention relates to the technical field of control boxes, in particular to a power control box which comprises a base, a protection plate, a lifting mechanism, a box body and a buffer assembly, and the protection plate is arranged on the side, away from the ground, of the base; the lifting mechanism is arranged on the base; the box body is arranged between the base and the protection plate and connected with the lifting mechanism, and the box body can be driven by the lifting mechanism to move in the height direction of the base; the buffer assembly is arranged between the protection plate and the box body and makes elastic contact with the box body so that the speed of the box body can be gradually reduced to zero in the process of getting close to the protection plate. The speed of the box body can be gradually reduced to zero in the process that the box body is close to the protection plate, large impact generated at the moment when the box body collides with the protection plate is effectively avoided, precise elements in the box body are protected, explosion caused by out-of-control of the elements in the box body due to impact is effectively prevented, and a good anti-explosion effect is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of control boxes, and in particular to a power control box. Background Art

[0002] The power control box is a vital component in the power system. It is responsible for remote monitoring, control and maintenance of power equipment. Overview of the power control box: The power control box realizes real-time monitoring and remote control of field equipment through integrated modern communication technology and intelligent control algorithms to ensure the normal operation and efficient collaboration of power equipment. The control box may need to meet special design requirements such as vibration resistance, waterproofness, dustproofness and explosion-proofness. Importance The power control box plays an irreplaceable role in power plants and is one of the key equipment to ensure the safe and reliable operation of the power system. With the development of technology, the power control box will become more intelligent and efficient, providing better services for the power industry.

[0003] Power plants require control boxes to generate electricity. Existing control boxes are usually fixed on the wall by bolts. The control boxes are low in height and can be easily operated by unauthorized personnel, which can cause certain dangers. At the same time, the control boxes are large in size and heavy in weight, making them difficult to transport and carry, which reduces the efficiency of the control boxes.

[0004] Therefore, the control box needs to be redesigned to effectively prevent the existing control box from being usually fixed on the wall by bolts, and at a low height, it is easy to be operated by unrelated personnel, resulting in certain dangers. At the same time, the control box is large in size and heavy in weight, and is not easy to transport and carry, which reduces the efficiency of the use of the control box. Summary of the invention

[0005] The present application provides a power control box, which is used to solve the problem in the prior art that the control box is usually fixed on the wall by bolts and has a low height and is easily operated by unauthorized personnel by mistake.

[0006] The present application provides a power control box, comprising:

[0007] Base;

[0008] A protective plate is arranged on a side of the base away from the ground;

[0009] A lifting mechanism is arranged on the base;

[0010] The box body is arranged between the base and the protective plate and is connected to the lifting mechanism. The box body can move along the height direction of the base under the drive of the lifting mechanism.

[0011] The buffer component is arranged between the protection plate and the box body, and makes elastic contact with the box body so that the speed of the box body gradually decreases to zero in the process of approaching the protection plate.

[0012] In one possible design, the buffer assembly includes:

[0013] An extrusion plate, which is arranged between the protective plate and the box body;

[0014] A pressure sensor is arranged on the extrusion plate and is used to stop the lifting mechanism when the extrusion plate contacts the box body;

[0015] The buffer spring is arranged between the extrusion plate and the protective plate, with one end connected to the extrusion plate and the other end connected to the protective plate.

[0016] In a possible design, a soft layer is provided on one side of the extrusion plate close to the box body, a mounting groove is provided on the soft layer, and the pressure sensor is embedded in the mounting groove.

[0017] In a possible design, the buffer component further includes:

[0018] The guide cylinder is arranged on a side of the extrusion plate close to the protective plate, and the axial direction of the guide cylinder is parallel to the height direction of the base;

[0019] The guide column is arranged on one side of the protective plate close to the extrusion plate. The outer wall of the guide column is slidably connected to the inner wall of the guide cylinder. The outer wall of the guide column is provided with a stopper. One end of the buffer spring abuts against the stopper, and the other end abuts against the inner bottom wall of the guide cylinder.

[0020] In a possible design, the inner wall of the guide cylinder is provided with a guide groove, which extends along the axial direction of the guide cylinder, and the outer wall of the guide column is provided with a guide block, which is slidably matched with the guide groove.

[0021] In one possible design, the lifting mechanism includes:

[0022] A guide screw is arranged on the base, and the length direction of the guide screw is parallel to the height direction of the base;

[0023] A driving motor is connected to the lead screw and is used to drive the lead screw to rotate;

[0024] The lifting seat is provided with a screw sleeve, the inner wall of the screw sleeve is threadedly matched with the outer wall of the guide screw, and the lifting seat can move along the height direction of the base under the threaded match of the guide screw and the screw sleeve.

[0025] In a possible design, the lead screw includes a first lead screw and a second lead screw, and the lifting seat is disposed between the first lead screw and the second lead screw.

[0026] In a possible design, the lifting mechanism further includes:

[0027] An output wheel is sleeved on the output shaft of the driving motor;

[0028] A first synchronous wheel is arranged on one side of the output wheel and sleeved on the first lead screw;

[0029] A second synchronous wheel is arranged on the other side of the output wheel and sleeved on the second lead screw;

[0030] The synchronous belt is wound around the first synchronous wheel, the second synchronous wheel and the output wheel, and the wrap angle of the synchronous belt on the output wheel is equal to or less than 120 degrees.

[0031] In a possible design, the power control box also includes:

[0032] A roller is arranged on the base;

[0033] A supporting foot is arranged on a side of the base close to the ground;

[0034] The electric push rod is arranged on the base and connected with the supporting foot. The electric push rod can push the supporting foot along the height direction of the base to make the roller contact with or separate from the ground.

[0035] In a possible design, the power control box further includes a support arm, wherein the support arm is disposed on the base, and the protective plate is disposed at an end of the support arm away from the base.

[0036] The beneficial effects of this application are as follows:

[0037] The power control box of the present application can adjust the height of the box by setting a lifting mechanism. The box can be lowered to an appropriate height when professional technicians are repairing and operating it. In normal working state, the box can be raised to a preset position to prevent safety accidents caused by accidental touch by unrelated personnel; the rising height of the box can be limited by setting a protective plate, and the protective plate can cover the box, further playing a role in preventing heavy object impact, water and dust; by setting a buffer component between the box and the protective plate, the buffer component can elastically contact the box when the box moves toward the protective plate, so that the speed of the box gradually decreases to zero in the process of approaching the protective plate, effectively avoiding a large impact at the moment of collision between the box and the protective plate, protecting the precision components inside the box, and effectively preventing the explosion caused by the loss of control of the components inside the box due to the impact, thereby playing a good explosion-proof role. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1A schematic diagram of the overall structure of the power control box provided in an embodiment of the present application;

[0040] Figure 2 A schematic diagram of the structure of the lifting mechanism of the power control box provided in an embodiment of the present application;

[0041] Figure 3 A schematic diagram of the structure of a buffer assembly of a power control box provided in an embodiment of the present application;

[0042] Figure 4 A schematic diagram of the internal structure of the guide cylinder and guide column of the power control box provided in an embodiment of the present application;

[0043] Figure 5 A schematic diagram of the structure of the support legs of the power control box provided in an embodiment of the present application.

[0044] Reference numerals:

[0045] 100, base; 200, protective plate; 300, lifting mechanism; 310, first guide screw; 320, second guide screw; 330, driving motor; 340, output wheel; 350, first synchronous wheel; 360, second synchronous wheel; 370, synchronous belt; 380, lifting seat; 390, screw sleeve; 400, box; 500, buffer assembly; 510, extrusion plate; 520, buffer spring; 530, soft layer; 540, guide cylinder; 541, guide groove; 550, guide column; 551, guide block; 600, roller; 700, supporting foot; 800, electric push rod; 900, supporting arm. DETAILED DESCRIPTION

[0046] The technical solution of the present application will be described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0047] Combine the following Figure 1-Figure 5 , describing the power control box provided in an embodiment of the present application.

[0048] Reference Figure 1As shown, an embodiment of the present application provides a power control box, including a base 100, a protective plate 200, a lifting mechanism 300, a box body 400 and a buffer assembly 500, wherein the protective plate 200 is arranged on a side of the base 100 away from the ground; the lifting mechanism 300 is arranged on the base 100; the box body 400 is arranged between the base 100 and the protective plate 200, and is connected to the lifting mechanism 300. The box body 400 can move along the height direction of the base 100 driven by the lifting mechanism 300; the buffer assembly 500 is arranged between the protective plate 200 and the box body 400, and through elastic contact with the box body 400, the speed of the box body 400 is gradually reduced to zero in the process of approaching the protective plate 200.

[0049] It should be noted that, due to the inertia of the object's movement and the hysteresis of the mechanical transmission, after the box 400 is lifted to the position of the protective plate 200 by the lifting mechanism 300, the lifting mechanism 300 stops, but due to the effect of inertia, the box 400 will continue to move upward for a short distance. At this time, the box 400 will collide with the protective plate 200, and the precision components inside the box 400 will vibrate, which may cause a safety accident. If a stop mechanism is added to the lifting mechanism 300, the box 400 will stop at a preset position immediately after it is in place. In this way, the precision components inside the box 400 will shift due to inertia, which may also pose a safety hazard. Therefore, a buffer assembly 500 is provided between the protective plate 200 and the box 400, and the elastic contact between the buffer assembly 500 and the box 400 is utilized to gradually reduce the speed of the box 400 to zero as it approaches the protective plate 200.

[0050] By using the technical solution provided by the above embodiment, the height of the box 400 can be adjusted by setting the lifting mechanism 300. The box 400 can be lowered to a suitable height during maintenance and operation by professional and technical personnel. When in normal working state, the box 400 can be raised to a preset position to prevent unauthorized personnel from accidentally touching the box 400 and causing safety accidents. The rising height of the box 400 can be limited by setting the protective plate 200, and the protective plate 200 can cover the box 400, further playing the role of preventing heavy objects from hitting, waterproofing and dustproofing. A buffer assembly 500 is arranged between the box body 400 and the protective plate 200. The buffer assembly 500 can elastically contact with the box body 400 when the box body 400 moves toward the protective plate 200, so that the speed of the box body 400 gradually decreases to zero when the box body 400 approaches the protective plate 200, thereby effectively avoiding a large impact at the moment of collision between the box body 400 and the protective plate 200, protecting the precision components inside the box body 400, and effectively preventing the explosion caused by the loss of control of the components inside the box body 400 due to the collision, thereby playing a good explosion-proof role.

[0051] Reference Figure 3 , Figure 4As shown, in some embodiments provided in the present application, the buffer assembly 500 includes an extrusion plate 510, a pressure sensor and a buffer spring 520. The extrusion plate 510 is arranged between the protective plate 200 and the box body 400; the pressure sensor is arranged on the extrusion plate 510, and is used to shut down the lifting mechanism 300 when the extrusion plate 510 contacts the box body 400; the buffer spring 520 is arranged between the extrusion plate 510 and the protective plate 200, one end of which is connected to the extrusion plate 510, and the other end of which is connected to the protective plate 200. In some specific embodiments, a soft layer 530 is arranged on the side of the extrusion plate 510 close to the box body 400, and a mounting groove is arranged on the soft layer 530, and the pressure sensor is embedded in the mounting groove. Specifically, the soft layer 530 is a silicone layer, so that when the box body 400 contacts the silicone layer, the silicone layer can absorb a certain impact force and play a buffering role; at the same time, the silicone layer has a certain elastic force, and the pressure sensor can be clamped in the mounting groove by setting a convex edge at the notch of the mounting groove. Specifically, the outer end face of the pressure sensor is flush with the silicone layer, so that when the box body 400 does not contact the soft layer 530, the reading of the pressure sensor always remains zero. When the box body 400 gradually approaches the silicone layer, it will gradually squeeze the silicone layer and the pressure sensor, so that the reading of the pressure sensor will increase. When the reading of the pressure sensor increases to a preset value, the pressure sensor will send an electrical signal to the controller used to control the lifting mechanism 300 to stop the lifting mechanism 300. At this time, the box body 400 loses power. Due to inertia, the box body 400 will continue to squeeze the extrusion plate 510 and move upward a short distance. The buffer spring 520 is further compressed, and the box body 400 overcomes the compression force of the buffer spring 520 and moves upward. Therefore, the speed of the box body 400 will gradually decrease until the speed of the box body 400 is reduced to zero, so that the box body 400 stops steadily under the protective plate 200.

[0052] Reference Figure 4As shown, in some embodiments provided in the present application, the buffer assembly 500 also includes a guide cylinder 540 and a guide column 550, the guide cylinder 540 is arranged on the side of the extrusion plate 510 close to the protective plate 200, and the axial direction of the guide cylinder 540 is parallel to the height direction of the base 100; the guide column 550 is arranged on the side of the protective plate 200 close to the extrusion plate 510, the outer wall of the guide column 550 is slidably connected to the inner wall of the guide cylinder 540, and the outer wall of the guide column 550 is provided with a stop portion, one end of the buffer spring 520 abuts against the stop portion, and the other end abuts against the inner bottom wall of the guide cylinder 540. Specifically, the guide post 550 includes two sections, wherein the diameter of the end close to the guide cylinder 540 is smaller, and the diameter of the end away from the guide cylinder 540 is larger. Thus, a stop surface extending in the radial direction is formed between the two sections of the guide post 550, and the buffer spring 520 is sleeved on the guide post 550 with a smaller diameter, and the upper end of the buffer spring 520 abuts against the stop surface, and the lower end of the buffer spring 520 abuts against the inner bottom wall of the guide cylinder 540. Thus, by providing the guide cylinder 540 and the guide post 550, the expansion and contraction direction of the buffer spring 520 can be limited to prevent the buffer spring 520 from tilting and causing the box body 400 to shake. In some specific embodiments, the inner wall of the guide cylinder 540 is provided with a guide groove 541, and the guide groove 541 extends along the axial direction of the guide cylinder 540, and the outer wall of the guide post 550 is provided with a guide block 551, and the guide block 551 is slidably matched with the guide groove 541. In this way, when the buffer spring 520 is compressed, the guide block 551 moves up and down along the guide groove 541, thereby causing the guide column 550 to move up and down along the inner wall of the guide cylinder 540, thereby preventing the guide column 550 and the guide cylinder 540 from rotating, thereby improving the stability of the movement process of the box body 400.

[0053] Reference Figure 2As shown, in some embodiments provided by the present application, the lifting mechanism 300 includes a lead screw, a drive motor 330 and a lifting seat 380. The lead screw is arranged on the base 100, and the length direction of the lead screw is parallel to the height direction of the base 100; the drive motor 330 is in transmission connection with the lead screw, and is used to drive the lead screw to rotate; the lifting seat 380 has a screw sleeve 390, and the inner wall of the screw sleeve 390 is threadedly matched with the outer wall of the lead screw. The lifting seat 380 can move along the height direction of the base 100 under the threaded match of the lead screw and the screw sleeve 390. In some specific embodiments, the lead screw includes a first lead screw 310 and a second lead screw 320, and the lifting seat 380 is arranged between the first lead screw 310 and the second lead screw 320. Specifically, a screw sleeve 390 is respectively provided on the left and right sides of the lifting seat 380, one of the screw sleeves 390 is threadedly connected to the first lead screw 310, and the other screw sleeve 390 is threadedly connected to the second lead screw 320; the lifting mechanism 300 also includes an output wheel 340, a first synchronous wheel 350, a second synchronous wheel 360 and a synchronous belt 370, the output wheel 340 is sleeved on the output shaft of the driving motor 330; the first synchronous wheel 350 is arranged on one side of the output wheel 340, and is sleeved on the first lead screw 310; the second synchronous wheel 360 is arranged on the other side of the output wheel 340, and is sleeved on the second lead screw 320; the synchronous belt 370 is wound around the first synchronous wheel 350, the second synchronous wheel 360 and the output wheel 340, and the wrap angle of the synchronous belt 370 on the output wheel 340 is equal to or less than 120 degrees. The driving motor 330 drives the output wheel 340 to rotate, thereby driving the synchronous belt 370 to rotate, and the synchronous belt 370 further drives the first synchronous wheel 350 and the second synchronous wheel 360 to rotate synchronously, thereby driving the first guide screw 310 and the second guide screw 320 to rotate synchronously, and the first guide screw 310 and the second guide screw 320 are respectively threadedly matched with the corresponding screw sleeve 390, thereby driving the lifting seat 380 to move upward, so that the box 400 on the lifting seat 380 moves upward; conversely, the box 400 moves downward.

[0054] like Figure 5 As shown, in some embodiments provided by the present application, the power control box further includes a roller 600, a support leg 700 and an electric push rod 800, wherein the roller 600 is arranged on the base 100; the support leg 700 is arranged on the side of the base 100 close to the ground; the electric push rod 800 is arranged on the base 100, connected to the support leg 700, and can push the support leg 700 along the height direction of the base 100 to make the roller 600 contact or separate from the ground. In this way, after the box body 400 rises to the preset position, the electric push rod 800 pushes the support leg 700 to make the support leg 700 contact the ground, so that the roller 600 is separated from the ground, preventing the roller 600 from driving the power control box to move, and ensuring the stability of the power control box in the working state.

[0055] In some specific embodiments, a cavity is provided in the base 100, and part of the lifting mechanism 300 is installed in the cavity inside the base 100; a counterweight block is also provided in the cavity of the base 100, and the counterweight block can lower the center of gravity of the entire power control box and improve the stability of the power control box during movement.

[0056] In some specific embodiments, the power control box further includes a support arm 900, the support arm 900 is disposed on the base 100, and the protection plate 200 is disposed at one end of the support arm 900 away from the base 100. An open slot is provided on the inner side of the support arm 900, and the open slot is used for the screw sleeves 390 on both sides of the lifting seat 380 to pass through, and when the lifting seat 380 moves up and down, the screw sleeves 390 can move up and down along the open slot.

[0057] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0058] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0059] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0061] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A power control box, characterized in that: include: Base; A protective plate is arranged on a side of the base away from the ground; A lifting mechanism is arranged on the base; A box body is disposed between the base and the protective plate and connected to the lifting mechanism, and the box body can move along the height direction of the base under the drive of the lifting mechanism; The buffer assembly is arranged between the protection plate and the box body, and is in elastic contact with the box body so that the speed of the box body is gradually reduced to zero in the process of approaching the protection plate.

2. The power control box according to claim 1, characterized in that: The buffer assembly comprises: An extrusion plate, the extrusion plate is arranged between the protective plate and the box body; A pressure sensor, disposed on the extrusion plate, for stopping the lifting mechanism when the extrusion plate contacts the box body; A buffer spring is arranged between the extrusion plate and the protective plate, with one end connected to the extrusion plate and the other end connected to the protective plate.

3. The power control box according to claim 2, characterized in that: A soft layer is arranged on one side of the extrusion plate close to the box body, a mounting groove is arranged on the soft layer, and the pressure sensor is embedded in the mounting groove.

4. The power control box according to claim 2, characterized in that: The buffer assembly also includes: A guide cylinder is arranged on a side of the extrusion plate close to the protective plate, and the axial direction of the guide cylinder is parallel to the height direction of the base; The guide column is arranged on the side of the protective plate close to the extrusion plate, the outer wall of the guide column is slidably connected to the inner wall of the guide cylinder, the outer wall of the guide column is provided with a stop part, one end of the buffer spring abuts against the stop part, and the other end abuts against the inner bottom wall of the guide cylinder.

5. The power control box according to claim 4, characterized in that: The inner wall of the guide cylinder is provided with a guide groove, and the guide groove extends along the axial direction of the guide cylinder. The outer wall of the guide column is provided with a guide block, and the guide block is slidably matched with the guide groove.

6. The power control box according to any one of claims 1 to 5, characterized in that: The lifting mechanism comprises: A guide screw is arranged on the base, and the length direction of the guide screw is parallel to the height direction of the base; A driving motor, drivingly connected to the lead screw, for driving the lead screw to rotate; The lifting seat has a screw sleeve, the inner wall of the screw sleeve is threadedly matched with the outer wall of the guide screw, and the lifting seat can move along the height direction of the base under the threaded match of the guide screw and the screw sleeve.

7. The power control box according to claim 6, characterized in that: The lead screw includes a first lead screw and a second lead screw, and the lifting seat is disposed between the first lead screw and the second lead screw.

8. The power control box according to claim 7, characterized in that: The lifting mechanism also includes: An output wheel, sleeved on the output shaft of the driving motor; A first synchronous wheel, arranged at one side of the output wheel and sleeved on the first lead screw; A second synchronous wheel, arranged at the other side of the output wheel and sleeved on the second lead screw; A synchronous belt is wound around the first synchronous wheel, the second synchronous wheel and the output wheel, and a wrap angle of the synchronous belt on the output wheel is equal to or less than 120 degrees.

9. The power control box according to any one of claims 1 to 5, characterized in that: The power control box also includes: A roller, disposed on the base; A supporting foot, arranged on a side of the base close to the ground; The electric push rod is arranged on the base and connected with the supporting foot, and can push the supporting foot along the height direction of the base to make the roller contact with or separate from the ground.

10. The power control box according to claim 1, characterized in that: The power control box also includes a support arm, which is arranged on the base, and the protective plate is arranged at one end of the support arm away from the base.

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