A transfer trolley suitable for ABB cable chamber voltage transformer handcart
By designing a transfer trolley suitable for ABB cable room voltage transformer handcarts, and utilizing locking, track guiding, and limiting structures, the inconvenience and safety risks during the handcart transfer process were resolved, achieving safe and efficient transfer operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THREE GORGES JINSHAJIANG CHUANYUN HYDROPOWER DEV CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-16
AI Technical Summary
The existing cable room voltage transformer trolleys are inconvenient to operate, labor-intensive, and pose safety risks during the transfer process, especially since they cannot be used on flat ground and there is a risk of falling when lifting and placing them.
A transfer trolley suitable for ABB cable room voltage transformer handcarts was designed. It is connected to the switch cabinet through a locking structure on the movable plate, guided by rails, and combined with a limit structure to ensure the stability and safety of the handcart during the transfer process.
It enables time-saving and labor-saving transfer of handcarts, reduces the labor intensity of operators, improves safety during the transfer process, and avoids the risk of equipment and ground damage.
Smart Images
Figure CN224367427U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electrical equipment technology, and in particular relates to a transfer trolley suitable for ABB cable room voltage transformer handcarts. Background Technology
[0002] A hydropower plant uses UniGear ZS1 metal-armored enclosed withdrawable switchgear for its 10kV complete set of switchgear. It is mainly divided into incoming switchgear, outgoing switchgear, bus tie cabinet, voltage transformer cabinet and isolation trolley cabinet. For two busbars connected over a long distance, in order to monitor the tie line, a cable room voltage transformer trolley is equipped in the cable compartment of the tie switchgear. When the cable room voltage transformer trolley is working normally, it is pushed into the switchgear cable compartment. When the tie line is under maintenance along with the 10kV line, the cable room voltage transformer trolley needs to be pulled out of the switchgear cable compartment after the tie line is de-energized. In order to ensure that the equipment on site is placed in an orderly and reasonable manner, the cable room voltage transformer trolley needs to be moved to a designated location after it is pulled out of the switchgear.
[0003] Currently, the voltage transformer trolley in the cable room is only equipped with an auxiliary operating steel plate for pulling the trolley out of the switchgear. There are no special tools for transferring it to the designated location after it is pulled out. Because the wheels on the voltage transformer trolley are too small, it can only roll on the track and cannot be used on flat ground. There are currently two methods for transfer: one is to have two people drag it, but because the trolley is very heavy, it is very inconvenient to transfer and may damage the equipment and the ground; the other is to lift the trolley onto the switch transfer trolley and then transfer it to the designated location via the switch transfer trolley. However, because the trolley is also very heavy, there is a risk of it falling when lifting the trolley onto or off the switch transfer trolley. Utility Model Content
[0004] The purpose of this utility model is to overcome the defects of the prior art and provide a transfer trolley suitable for ABB cable room voltage transformer trolleys. It uses a locking structure on the movable plate to connect with the switchgear, avoiding the trolley from shifting due to its large mass during the transfer process, thus affecting the transfer of the trolley. The wheels on both sides of the trolley move along the track inside the baffle, saving time and effort, and ensuring the safety of the trolley during the transfer process. It is convenient for operators to pull the cable room voltage transformer trolley from the 10kV switchgear to the transfer trolley or push the cable room voltage transformer trolley from the transfer trolley into the 10kV switchgear.
[0005] The objective of this utility model is achieved through the following technical solution:
[0006] A transfer trolley suitable for ABB cable compartment voltage transformer trolleys includes a base plate and baffles on both sides of the base plate. The width of the base plate corresponds to the width of the switch cabinet. Rollers are provided on the side of the baffles that are far apart from each other. One end of the base plate has a movable plate that can rotate around the base plate. The bottom of the movable plate has a locking structure corresponding to the lock hole of the switch cabinet. A track for moving the cable compartment voltage transformer trolley is also provided on the side of the baffles that are close to each other.
[0007] In this embodiment, the transfer trolley is moved to the switchgear, and the locking structure located at the bottom of the movable plate locks the transfer trolley to the switchgear. The cable compartment voltage transformer trolley can be pulled from the switchgear to the transfer trolley for transfer along the track, or the cable compartment voltage transformer trolley can be pushed into the switchgear from the transfer trolley. This reduces the labor intensity of the operators and also ensures the safety of the cable compartment voltage transformer trolley during the transfer process.
[0008] In one embodiment, a first limiting structure extending in the horizontal direction is also installed on the side of the baffles that are far apart from each other;
[0009] In this embodiment, the first limiting structure set on the outside of the baffle contacts the door frame of the switchgear, thereby positioning the transfer trolley as it gradually approaches the switchgear and preventing it from going too deep into the bottom of the switchgear.
[0010] In one embodiment, a second limiting structure extending in a vertical direction is also installed on the base plate, the second limiting structure being disposed at the end of the track away from the movable plate.
[0011] In one embodiment, both the first limiting structure and the second limiting structure have a cylindrical base and an anti-collision member disposed on the cylindrical base.
[0012] In one embodiment, the anti-collision component is a hemispherical structure with a diameter consistent with that of the cylindrical base.
[0013] In one embodiment, the track includes a smooth section and a ramp section connected in sequence, the end of the ramp section being flush with the end of the baffle.
[0014] In one embodiment, a fixed plate is provided at the end of the base plate away from the movable plate, and a handle is provided on the side of the fixed plate away from the base plate.
[0015] In one embodiment, the fixing plate extends vertically, and a reinforcing rib is connected between the fixing plate and the baffle.
[0016] In one embodiment, the movable plate and the base plate are connected by a plurality of hinges.
[0017] The beneficial effects of this utility model are as follows:
[0018] The device utilizes a locking mechanism on the movable plate to connect with the switchgear, preventing the transfer trolley from shifting due to its large mass during the transfer process, thus avoiding any impact on the transfer. The wheels on both sides of the trolley move along the track inside the baffle. The trolley first contacts the sloping section of the track and then gradually moves to the smooth section, improving the safety of the trolley when entering and exiting the switchgear. In short, the entire device not only saves time and effort but also ensures the safety of the trolley during the transfer process, allowing operators to easily pull the cable room voltage transformer trolley from the 10kV switchgear to the transfer trolley or push the cable room voltage transformer trolley from the transfer trolley into the 10kV switchgear. Attached Figure Description
[0019] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings. Wherein:
[0020] Figure 1 A schematic diagram of the structure of this utility model is shown;
[0021] Figure 2 This diagram shows the structure of the movable plate of this utility model when it is flipped upwards;
[0022] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.
[0023] Figure label:
[0024] 1-Second limiting structure, 2-Smooth section, 3-Slope section, 4-Movable plate, 5-Locking structure, 6-First limiting structure, 7-Roller, 8-Handle, 9-Base plate, 10-Baffle, 11-Reinforcing rib. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings.
[0026] This utility model provides a transfer trolley suitable for ABB cable room voltage transformer handcarts, such as... Figure 1 and Figure 2 As shown, it includes a base plate 9 and baffles 10 arranged on both sides of the base plate 9. The width of the base plate 9 corresponds to the width of the switch cabinet. Rollers 7 are provided on the side of the baffles 10 that are far apart from each other. One end of the base plate 9 has a movable plate 4 that can rotate around the base plate 9. The bottom of the movable plate 4 has a locking structure 5 that corresponds to the lock hole of the switch cabinet. A track for moving the voltage transformer trolley in the cable room is also provided on the side of the baffles 10 that are close to each other.
[0027] It should be noted that currently, for two busbars connected over a long distance, a cable room voltage transformer trolley is installed in the cable compartment of the connecting switchgear for monitoring the tie line. When the cable room voltage transformer trolley is working normally, it is pushed into the switchgear cable compartment. When the tie line is undergoing maintenance along with the 10kV line, the cable room voltage transformer trolley needs to be pulled out of the switchgear cable compartment after the tie line is de-energized. To ensure orderly and reasonable placement of equipment on site, the cable room voltage transformer trolley needs to be moved to a designated location after being pulled out of the switchgear. Because the voltage transformer trolley in the cable room is heavy and the wheels on the trolley itself are too small, it can only roll on the track and cannot be used on flat ground. Currently, the two common methods for moving it are: one is to have two people drag it, but because the trolley is very heavy, it is very inconvenient to move and may damage the equipment and the ground; the other is to lift the trolley to the switch transfer trolley and then move it to the designated location via the switch transfer trolley, but again because the trolley is very heavy, there is a risk of it falling when lifting the trolley onto and off the switch transfer trolley.
[0028] In this embodiment, the transfer trolley is moved to the switch cabinet, and the transfer trolley is locked to the switch cabinet using the locking structure 5 located at the bottom of the movable plate 4. The cable room voltage transformer trolley can be pulled from the switch cabinet to the transfer trolley for transfer along the track, or the cable room voltage transformer trolley can be pushed into the switch cabinet from the transfer trolley. This reduces the labor intensity of the operators and also ensures the safety of the cable room voltage transformer trolley during the transfer process.
[0029] Specifically, a first limiting structure 6 extending horizontally is installed on the side of the baffle 10 that is far apart from each other, and a second limiting structure 1 extending vertically is installed on the bottom plate 9. The second limiting structure 1 is located at the end of the track that is far away from the movable plate 4. The track includes a smooth section 2 and a ramp section 3 connected in sequence. The end of the ramp section 3 is flush with the end of the baffle 10.
[0030] It should be noted that the first limiting structure 6 set on the outside of the baffle 10 contacts the door frame of the switchgear, that is, the transfer trolley is positioned as it gradually approaches the switchgear, to prevent the transfer trolley from going too deep into the bottom of the switchgear. At the same time, the wheels on both sides of the trolley move along the track on the inside of the baffle 10. When the trolley leaves the switchgear, it first contacts the ramp section 3 of the track, and then gradually moves to the smooth section 2 of the track, which improves the safety of the trolley when entering and leaving the switchgear.
[0031] Specifically, when it is necessary to pull out the voltage transformer trolley from the cable compartment, push the transfer trolley to the switchgear cable compartment, lift the front movable plate 4 of the trolley, and after the transfer trolley reaches the target position through the first limiting structure 6, lower the movable plate 4 so that the locking structure 5 at the bottom of the movable plate 4 is fastened to the lock hole of the switchgear to fix the position of the transfer trolley, and then pull the voltage transformer trolley from the cable compartment onto the transfer trolley. When it is necessary to push the voltage transformer trolley from the cable compartment into the switchgear, push the transfer trolley to the switchgear cable compartment, lift the movable plate 4 to gradually move the transfer trolley closer to the switchgear, and ensure that the transfer trolley moves into place through the first limiting structure 6, then lower the movable plate 4 so that the locking structure 5 at the bottom of its bottom is connected to the lock hole of the switchgear, then push the voltage transformer trolley from the cable compartment into the switchgear, then lift the movable plate 4 and pull out the transfer trolley to separate the transfer trolley from the switchgear.
[0032] In one embodiment, such as Figure 1 and Figure 2 As shown, both the first limiting structure 6 and the second limiting structure 1 have a cylindrical base and an anti-collision component set on the cylindrical base. The anti-collision component is a hemispherical structure with a diameter consistent with the diameter of the cylindrical base to avoid scratching the equipment and operators.
[0033] In one embodiment, a fixed plate is provided at the end of the base plate 9 away from the movable plate 4, and a handle 8 is provided on the side of the fixed plate away from the base plate 9. The fixed plate extends in the vertical direction, and a reinforcing rib 11 is connected between the fixed plate and the baffle 10. That is, the handle 8 at one end of the base plate 9 makes it easy to pull the transfer trolley, and the reinforcing rib 11 between the fixed plate and the baffle 10 improves the strength of the fixed plate and increases the service life of the transfer trolley.
[0034] In one embodiment, the movable plate 4 and the base plate 9 are connected by multiple hinges. In the static state, the movable plate 4 is flush with the base plate 9. One side of the movable plate 4 is flipped upward along the base plate 9 so that the locking structure 5 at the bottom of the movable plate 4 can be connected or separated from the lock hole of the switch cabinet. The locking structure 5 can be a hook.
[0035] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0036] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.
Claims
1. A transfer trolley suitable for ABB cable compartment voltage transformer handcarts, characterized in that, It includes a base plate and baffles on both sides of the base plate. The width of the base plate corresponds to the width of the switch cabinet. Rollers are provided on the side of the baffles that are far apart from each other. One end of the base plate has a movable plate that can rotate around the base plate. The bottom of the movable plate has a locking structure corresponding to the lock hole of the switch cabinet. A track for moving the voltage transformer trolley in the cable compartment is also provided on the side of the baffles that are close to each other.
2. The transfer trolley for ABB cable room voltage transformers according to claim 1, characterized in that, A first limiting structure extending horizontally is also installed on the side of the baffles that are far apart from each other.
3. A transfer trolley suitable for ABB cable room voltage transformer handcarts according to claim 2, characterized in that, The base plate is also equipped with a second limiting structure extending in the vertical direction, which is located at the end of the track away from the movable plate.
4. A transfer trolley suitable for ABB cable room voltage transformer handcarts according to claim 3, characterized in that, Both the first limiting structure and the second limiting structure have a cylindrical base and an anti-collision component disposed on the cylindrical base.
5. A transfer trolley suitable for ABB cable room voltage transformer handcarts according to claim 4, characterized in that, The anti-collision component is a hemispherical structure, and its diameter is the same as that of the cylindrical base.
6. A transfer trolley suitable for ABB cable room voltage transformer handcarts according to claim 1, characterized in that, The track includes a smooth section and a ramp section connected in sequence, the end of the ramp section being flush with the end of the baffle.
7. A transfer trolley suitable for ABB cable room voltage transformer handcarts according to claim 1, characterized in that, A fixed plate is provided at the end of the base plate away from the movable plate, and a handle is provided on the side of the fixed plate away from the base plate.
8. A transfer trolley for ABB cable room voltage transformers according to claim 7, characterized in that, The fixing plate extends vertically, and a reinforcing rib is connected between the fixing plate and the baffle.
9. A transfer trolley suitable for ABB cable room voltage transformer handcarts according to claim 1, characterized in that, The movable plate and the base plate are connected by multiple hinges.