Switch cabinet trolley and its control method

Abstract

The present invention belongs to the technical field of safe transfer and control, and discloses a switch cabinet trolley and a control method thereof. The switch cabinet trolley includes a trolley body and an airbag. The trolley body has side plates and a top plate. The top plate is arranged at a higher position relative to the side plates. Connecting pieces are arranged on the side plates for connecting the switch cabinet, and equipment is carried on the top plate; the airbag is arranged on the side plate of the trolley body where the connecting piece is provided, and the airbag is arranged at a lower position relative to the connecting piece. By arranging an airbag on the side plate of the switch cabinet trolley where the connecting piece is provided, when an accidental separation occurs to the connecting piece during the process of equipment transfer between the switch cabinet trolley and the switch cabinet, the airbag can automatically open to support the equipment, playing a buffering and protective role for the equipment, thereby reducing the probability of equipment damage.

Description

Technical Field

[0001] The present invention relates to the technical field of safe transfer and control, and particularly to a switch cabinet trolley and a control method thereof. Background Art

[0002] During the process of pushing a traditional switch cabinet trolley into the equipment, it is necessary to fix the trolley and the switch cabinet in advance. The fixing method is to set a hook. When the hook encounters mechanical failure or disrepair over time, the following phenomena will occur: the hook cannot tightly hook the trolley and the switch cabinet, resulting in the position of the trolley not being well fixed. And the equipment on the trolley is very heavy (generally weighing 500 catties) and the center of gravity is closer to the upper part. Once the trolley cannot be well fixed in place, during the process of pushing the equipment in, the trolley will move away from the switch cabinet, eventually causing the equipment to tip forward, leading to equipment damage and even personal accidents. Summary of the Invention

[0003] The purpose of the present invention is to provide a switch cabinet trolley and a control method thereof to solve the problem that after the fixing structure between the trolley and the switch cabinet fails, the equipment tips over and is damaged.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] The switch cabinet trolley includes:

[0006] A trolley body, the trolley body has side plates and a top plate. The top plate is arranged at a higher position relative to the side plates. Connecting pieces are arranged on the side plates for connecting the switch cabinet, and equipment is carried on the top plate;

[0007] An airbag, the airbag is arranged on the side plate of the trolley body where the connecting piece is located, and the airbag is arranged at a lower position relative to the connecting piece.

[0008] Optionally, the switch cabinet trolley further includes two guardrails. The two guardrails are arranged on the top plate and are respectively arranged on both sides of the top plate. The equipment can be limited between the two guardrails.

[0009] Optionally, the connecting piece is an electromagnetic chuck, and the electromagnetic chuck can adsorb the switch cabinet after being energized and separate from the switch cabinet after being powered off.

[0010] Optionally, the switch cabinet trolley further includes a first pressure sensor. The first pressure sensor is arranged on the side of the electromagnetic chuck facing the switch cabinet to detect the adsorption pressure of the electromagnetic chuck.

[0011] Optionally, the switchgear trolley further includes a second pressure sensor, which is disposed on the top plate and below the equipment to detect the load pressure of the equipment on the top plate.

[0012] Optionally, the switchgear trolley further includes a motor, which is drivingly connected to the wheels below the trolley body.

[0013] A control method for a switchgear trolley, which is used for the switchgear trolley, and the control method for the switchgear trolley includes the following steps:

[0014] S1, Push the switchgear trolley loaded with equipment in front of the switchgear.

[0015] S2, The trolley body of the switchgear trolley is connected to the switchgear through a connecting member, and the connecting member is set in a locked state.

[0016] S3, Push the equipment into the switchgear. If the connecting member is disconnected from the switchgear when it is in the locked state, the airbag will automatically release and open.

[0017] Optionally, in step S3, after the connecting member is disconnected from the switchgear when it is in the locked state, the motor on the trolley body starts and drives the trolley body to move a specified distance away from the switchgear, and then the airbag automatically releases and opens.

[0018] Optionally, in step S3, when the connecting member is in the locked state, if the adsorption pressure detected by the first pressure sensor is zero, it is considered that the connecting member has been disconnected from the switchgear.

[0019] Optionally, when the connecting member is in the locked state, if the load pressure detected by the second pressure sensor is zero, it is considered that the equipment has been pushed into the switchgear, and the locked state of the connecting member is released; if the load pressure is not zero, the locked state is maintained.

[0020] Advantages of the present invention:

[0021] The switchgear trolley provided by the present invention is provided with an airbag on the side plate having a connecting member on the switchgear trolley. When an accidental separation occurs to the connecting member during the equipment transfer process between the switchgear trolley and the switchgear, due to the high center of gravity of the equipment, the equipment will be tilted during the process of pushing the switchgear trolley into the switchgear. At this time, the airbag can automatically open to support the equipment, playing a buffering and protective role for the equipment, thereby reducing the probability of equipment damage.

[0022] The control method of the switch cabinet trolley provided by the present invention can automatically release and open the airbag when the connecting piece is accidentally disconnected from the switch cabinet, so that the airbag can carry the equipment and reduce the probability of damage to the equipment after it topples over. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of a switch cabinet trolley provided by an embodiment of the present invention;

[0024] Figure 2 is a flowchart of a control method of a switch cabinet trolley provided by an embodiment of the present invention.

[0025] In the figure:

[0026] 100, switch cabinet; 200, equipment;

[0027] 1, trolley body; 11, side plate; 12, top plate; 13, bottom plate; 14, wheel;

[0028] 2, airbag; 3, connecting piece; 4, guardrail; 5, first pressure sensor; 6, second pressure sensor; 7, motor; 8, controller. Detailed Embodiment

[0029] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that for the sake of description, only parts related to the present invention are shown in the drawings, rather than all the structures.

[0030] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may also include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0032] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] As Figure 1 shown, the embodiment of the present invention first provides a switch cabinet trolley for transporting the device 200 to the front of the switch cabinet 100 so as to push the device 200 into the switch cabinet 100. In order to more clearly show the positional relationship between the switch cabinet trolley and the device 200, the device 200 is schematically shown as a transparent hexahedron in this embodiment.

[0034] As Figure 1 shown, the switch cabinet trolley includes a trolley body 1 and an airbag 2. The trolley body 1 has a side plate 11 and a top plate 12. The top plate 12 is arranged at a higher position relative to the side plate 11. A connecting member 3 is provided on the side plate 11 for connecting to the switch cabinet 100. The device 200 is carried on the top plate 12; the airbag 2 is arranged on the side plate 11 of the trolley body 1 where the connecting member 3 is provided, and the airbag 2 is arranged at a lower position relative to the connecting member 3.

[0035] The switchgear trolley provided by the present invention needs to fix the position of the trolley body 1 and the switchgear 100 after the trolley body 1 runs in front of the switchgear 100, so as to push the equipment 200 on the trolley body 1 into the switchgear 100. Since the equipment 200 has a large mass and a high center of gravity, there is a possibility that the connecting piece 3 accidentally disconnects during the process of pushing the equipment 200, resulting in the equipment 200 falling off the trolley body 1, causing damage or even personal accidents. In order to avoid the damage after the equipment 200 falls, the safety airbag 2 is arranged below the connecting piece 3 in the embodiment of the present invention. When the connecting piece 3 accidentally disconnects, the safety airbag 2 can be opened in time to release the safety airbag 2. After the equipment 200 falls, it will land on the safety airbag 2, and the safety airbag 2 plays a buffering and protective role for the equipment 200, thereby reducing the probability of damage to the equipment 200 and avoiding the safety of the surrounding facilities at the falling point of the equipment 200. The switchgear trolley provided by the embodiment of the present invention is provided with both the connecting piece 3 and the safety airbag 2. The connecting piece 3 can ensure a firm connection between the trolley body 1 and the switchgear 100. When the connecting piece 3 accidentally separates, the safety airbag 2 can be automatically opened to support the equipment 200, realizing a dual protection design for the equipment 200 and having higher safety.

[0036] Optionally, the switchgear trolley further includes two guardrails 4. The two guardrails 4 are arranged on the top plate 12 and are respectively arranged on both sides of the top plate 12, and the equipment 200 can be limited between the two guardrails 4.

[0037] As Figure 1 shown, the two guardrails 4 are respectively arranged on both sides of the top plate 12, so that during the process of pushing the equipment 200 into the switchgear 100 and during the transfer process, the equipment 200 can be partially or fully limited within the length range of the guardrails 4, improving the stability of the equipment 200. The height of the guardrails 4 is generally not less than one-third of the height of the equipment 200, and preferably higher than the center of gravity height of the equipment 200, with better reliability.

[0038] Optionally, the connecting piece 3 is an electromagnetic chuck, and the electromagnetic chuck can adsorb the switchgear 100 after being energized and separate from the switchgear 100 after being powered off.

[0039] As Figure 1As shown, the connecting member 3 is an electromagnetic suction cup, which has a large suction surface and can be highly strongly adsorbed on the switch cabinet 100 when pushing the device 200, thereby fixing the position of the trolley body 1 and preventing the device 200 from falling from the gap between the trolley body 1 and the switch cabinet 100. The electromagnetic suction cup is easy to control and can be controlled manually or automatically. The electromagnetic suction cup generates excitation after power is turned on, and the switch cabinet 100 is magnetized and generates a strong suction force with the electromagnetic suction cup to fix the trolley body 1; the electromagnetic suction cup loses excitation after power is turned off, and the connection between the trolley body 1 and the switch cabinet 100 is released. Specifically, the on-off control of the electromagnetic suction cup can be achieved by setting a controller 8 or a power switch on the trolley body 1.

[0040] Optionally, the switch cabinet trolley further includes a first pressure sensor 5 , which is disposed on a side of the connecting member 3 facing the switch cabinet 100 to detect the adsorption pressure of the connecting member 3 .

[0041] By setting the first pressure sensor 5 to measure the adsorption pressure between the connector 3 and the switch cabinet 100, the real-time detection of the working state of the connector 3 can be achieved, so as to make emergency operations in time. When the adsorption pressure detected by the first pressure sensor 5 is zero, it means that the connector 3 and the switch cabinet 100 have been disconnected. If the connector 3 is in the unlocked state at this time, it is considered that the device 200 has completed the operation of pushing into the switch cabinet 100; if the connector 3 is in the locked state at this time, it is considered that the device 200 has not been completely pushed into the switch cabinet 100, and the connector 3 is accidentally disconnected. At this time, the controller 8 will issue an alarm after receiving the adsorption pressure of the first pressure sensor 5, and control the airbag 2 to start and release to receive the device 200. It can be seen that the first pressure sensor 5 realizes the automatic control and automation of the airbag 2, and the safety is better.

[0042] Optionally, the switch cabinet trolley further includes a second pressure sensor 6 , which is disposed on the top plate 12 and below the device 200 , for detecting the load pressure of the device 200 on the top plate 12 .

[0043] It can be understood that when the device 200 is not fully pushed into the switch cabinet 100, the device 200 has a load pressure on the top plate 12. When the load pressure is zero, it indicates that the device 200 has been fully pushed into the switch cabinet 100. If the adsorption pressure detected by the first pressure sensor 5 is not zero at this time, the safe transfer of the device 200 is realized; if the adsorption pressure detected by the first pressure sensor 5 is zero at this time, it means that the connecting member 3 has been disconnected from the switch cabinet 100, and there is a possibility that the device 200 will fall at this time. Therefore, the controller 8 needs to control the airbag 2 to start and release immediately to protect the device 200. It can be seen that by the controller 8 collecting the adsorption pressure of the first pressure sensor 5 and the load pressure of the second pressure sensor 6 at the same time, the automatic control of the airbag 2 by the controller 8 can be realized, with high reliability and avoiding the lag operation caused by the insufficient reaction speed of the staff.

[0044] Optionally, the switch cabinet trolley further includes a motor 7, and the motor 7 is drivingly connected to the wheels 14 under the trolley body 1.

[0045] As Figure 1 shown, the trolley body 1 has a bottom plate 13, and the wheels 14 are installed under the bottom plate 13. The motor 7 provided on the bottom plate 13 can drive the wheels 14 to rotate to drive the movement of the trolley body 1. At the same time, the controller 8 is provided on the bottom plate 13, and the controller 8 is communicatively connected to the airbag 2, the connecting member 3, the first pressure sensor 5, the second pressure sensor 6, and the motor 7 to achieve comprehensive control. It should be noted that multiple first pressure sensors 5 and second pressure sensors 6 can be respectively provided to achieve accurate collection of pressure information.

[0046] The embodiment of the present invention further provides a control method for a switch cabinet trolley, which is used for the safety control of the above-mentioned switch cabinet trolley. Specifically, as Figure 2 shown in the flowchart, the control method of the switch cabinet trolley includes the following steps:

[0047] S1, push the switch cabinet trolley loaded with the device 200 in front of the switch cabinet 100;

[0048] S2, the trolley body 1 of the switch cabinet trolley is connected to the switch cabinet 100 through the connecting member 3, and the connecting member 3 is set in a locked state; the locked state is for the controller 8 to monitor the working state of the connecting member 3, so as to judge whether it is a normal disconnection or an accidental disconnection when the adsorption pressure of the first pressure sensor 5 is zero.

[0049] S3, push the device 200 into the switch cabinet 100. If the connecting member 3 is disconnected from the switch cabinet 100 when it is in the locked state, the airbag 2 will be automatically released and opened.

[0050] In this embodiment, the airbag 2 can be directly associated with the status switch of the connecting member 3 and the adsorption pressure of the first pressure sensor 5, so as to facilitate rapid action. When the connecting member 3 is set to the locked state, the airbag 2 activates the anti-tipping mode. Once the adsorption pressure of the first pressure sensor 5 is zero, the airbag 2 is immediately activated and released to support the device 200 that may fall.

[0051] It can be seen that in the control method of the switch cabinet trolley provided by the present invention, when the connecting member 3 is accidentally disconnected from the switch cabinet 100, the airbag 2 can be automatically released and opened, so that the airbag 2 can support the device 200 and reduce the probability of damage to the device 200 after tipping.

[0052] Optionally, in step S3, after the connecting member 3 is disconnected from the switch cabinet 100 in the locked state, the motor 7 on the trolley body 1 starts and drives the trolley body 1 to move a specified distance away from the switch cabinet 100, and then the airbag 2 is automatically released and opened.

[0053] It can be understood that when the connecting member 3 is connected to the switch cabinet 100, there is a small gap between them to facilitate the smooth pushing of the device 200. After the connecting member 3 is disconnected from the switch cabinet 100, there may be a tendency for the trolley body 1 to move away from the switch cabinet 100. If the airbag 2 is opened at this time, there is insufficient space. Therefore, a specified distance needs to be set, which is adapted to the space required by the airbag 2. Driving the trolley body 1 to move a specified distance through the motor 7 can ensure the complete opening of the airbag 2, provide a sufficient load-bearing surface for the device 200, and have better safety and reliability, effectively avoiding damage to the device 200.

[0054] Optionally, in step S3, when the connecting member 3 is in the locked state, if the adsorption pressure detected by the first pressure sensor 5 is zero, it is considered that the connecting member 3 has been disconnected from the switch cabinet 100.

[0055] During the pushing process of the device 200, the controller 8 continuously collects the adsorption pressure of the first pressure sensor 5 to detect the connection relationship between the trolley body 1 and the switch cabinet 100 in real time, so as to ensure the safe transfer of the device 200.

[0056] Optionally, when the connecting member 3 is in the locked state, if the load pressure detected by the second pressure sensor 6 is zero, it is considered that the device 200 has been pushed into the switch cabinet 100, and the locked state of the connecting member 3 is released; if the load pressure is not zero, the locked state is maintained.

[0057] This step is a monitoring process for the pushing process of device 200, which is conducive to ensuring the smooth connection between the switch cabinet trolley and switch cabinet 100. The locking state and contact locking state of connecting piece 3 are both manually operated. During the process of device 200 starting to move and finishing moving, connecting piece 3 is in the locked state. Therefore, the controller 8 can judge the connection relationship between trolley body 1 and switch cabinet 100 through the information relationship between the first sensor 5 and the second sensor 6, and judge the pushing movement process of device 200, which is conducive to realizing automatic safety control during the device movement process and is conducive to protecting device 200.

[0058] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. Switchgear trolley, characterized in that, Comprising: A trolley body (1), the trolley body (1) having side plates (11) and a top plate (12), the top plate (12) being disposed at a higher position relative to the side plates (11), and a connecting member (3) being provided on the side plates (11) for connecting to a switchgear cabinet (100), and a device (200) being carried on the top plate (12); An airbag (2), the airbag (2) being provided on the side plate (11) of the trolley body (1) where the connecting member (3) is provided, the airbag (2) being disposed at a lower position relative to the connecting member (3); A first pressure sensor (5), the first pressure sensor (5) being provided on the side of the connecting member (3) facing the switchgear cabinet (100) for detecting the adsorption pressure of the connecting member (3); A second pressure sensor (6), the second pressure sensor (6) being provided on the top plate (12) and located below the device (200) for detecting the load pressure of the device (200) on the top plate (12).

2. The switch cabinet trolley according to claim 1, characterized in that, The switchgear trolley further includes two guardrails (4), the two guardrails (4) being provided on the top plate (12) and disposed on both sides of the top plate (12), and the device (200) can be limited between the two guardrails (4).

3. The switch cabinet trolley according to claim 1, characterized in that, The connecting member (3) is an electromagnetic chuck, and the electromagnetic chuck can adsorb the switchgear cabinet (100) after being energized and separate from the switchgear cabinet (100) after being de-energized.

4. The switchgear trolley according to claim 1, characterized in that, The switchgear trolley further includes a motor (7), and the motor (7) is drivingly connected to a wheel (14) below the trolley body (1).

5. Control method for the switch cabinet trolley, characterized in that, For the switchgear trolley according to any one of claims 1-4, the control method of the switchgear trolley includes the following steps: S1, pushing the switchgear trolley loaded with the device (200) in front of the switchgear cabinet (100); S2, connecting the trolley body (1) of the switchgear trolley to the switchgear cabinet (100) through the connecting member (3), and setting the connecting member (3) in a locked state; S3, pushing the device (200) into the switchgear cabinet (100), if the connecting member (3) disconnects from the switchgear cabinet (100) when in the locked state, the airbag (2) automatically releases and opens.

6. The control method of the switch cabinet trolley according to claim 5, wherein In step S3, after the connecting member (3) disconnects from the switchgear cabinet (100) when in the locked state, the motor (7) on the trolley body (1) starts and drives the trolley body (1) to move a specified distance in a direction away from the switchgear cabinet (100), and then the airbag (2) automatically releases and opens.

7. The control method of the switch cabinet trolley according to claim 5, characterized in that, In step S3, when the connecting member (3) is in the locked state, if the adsorption pressure detected by the first pressure sensor (5) is zero, it is considered that the connecting member (3) has disconnected from the switchgear cabinet (100).

8. The control method of the switch cabinet trolley according to claim 7, characterized in that, When the connecting member (3) is in the locked state, if the load pressure detected by the second pressure sensor (6) is zero, it is considered that the device (200) has been pushed into the switch cabinet (100), and the locked state of the connecting member (3) is released; if the load pressure is not zero, the locked state is maintained.

Images