Electric push baffle plate device for contact box of high-voltage switch cabinet
By designing the combination of slide rails, sliding blocks and shielding panels, the problem of dust entering the contact box is solved, and the contacts are clean and safely used, with the advantages of simple structure, flexible movement and reliable interlocking.
Patent Information
- Application Number
- CN202422375999.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-29
AI Technical Summary
When the contact box is not in contact with the handcart, external dust is easily entered, affecting the use of the contact.
A high-voltage switch cabinet contact box electric push shield device is designed, including slide rails, sliding blocks, blind plates, telescopic push rods and limit devices. The contacts are blocked or exposed through the movement of the shielding curtains, and combined with the control of the limit and push rods, ensuring the cleanliness and safety of the contacts.
Keep the contacts clean, ensure that the contacts work well, have simple structure, flexible movement, reliable interlocking, and easy to use.
Smart Images
Figure CN223156494U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of switch cabinet accessories, in particular to an electric push shielding plate device for the contact box of a high-voltage switch cabinet. Background Technique
[0002] The contact box is used in various handcart-type switch cabinets and is an insulating part, which plays an important role in the electrical performance and mechanical stability of the transformer.
[0003] When the contacts in the contact box are not in contact with the handcart, they will be in contact with the outside world. At this time, there is a possibility that external dust will enter the inside of the contact box, affecting the subsequent use of the contacts, and there are certain deficiencies.
[0004] Therefore, an electric push shielding plate device for the contact box of a high-voltage switch cabinet is provided to solve the above-mentioned problems. Content of the Utility Model
[0005] The purpose of the utility model is to solve the problems raised in the above background technique, and to propose an electric push shielding plate device for the contact box of a high-voltage switch cabinet.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] An electric push shielding plate device for the contact box of a high-voltage switch cabinet, including a switch cabinet body, a contact box is arranged inside the switch cabinet body, and further includes:
[0008] Two groups of slide rails, both installed inside the contact box;
[0009] Two groups of sliding blocks, slidably connected to the slide rails;
[0010] A shielding curtain plate, the two ends of which are respectively fixedly connected to the sliding blocks, an opening is provided in the middle of the shielding curtain plate, and the shielding curtain plate is used to shield the contacts inside the contact box. When the shielding curtain plate moves on the slide rails, the contacts will leak out from the opening;
[0011] A telescopic push rod, fixedly connected inside the contact box, and the telescopic end of the telescopic push rod is fixedly connected to the sliding block;
[0012] An upper limit and a lower limit, both fixedly connected inside the contact box, and both the upper limit and the lower limit are used to detect the position of the shielding curtain plate. When the sliding block presses the lower limit, the shielding curtain plate shields the contacts inside the contact box. When the sliding block presses the upper limit, the opening on the shielding curtain plate leaks out the contacts;
[0013] A working position limit and a test position limit, both fixedly connected inside the contact box. When the handcart slides inside the contact box, it can respectively press the working position limit and the test position limit to control the extension and contraction of the telescopic push rod.
[0014] Preferably, a connecting plate is fixedly connected to the sliding block. The connecting plate is hollow and has an opening on the side. A spring member is connected inside. The shielding curtain plate is slidably connected inside the connecting plate and abuts against the spring member.
[0015] In order to reduce the gap between the shielding curtain plate and the contact, preferably, an installation rod is fixedly connected to the connecting plate. A lead screw is threadedly connected to the installation rod. The lead screw is used to squeeze the shielding curtain plate so that the shielding curtain plate slides inside the connecting plate, and thus the shielding curtain plate approaches and moves away from the contact point.
[0016] Preferably, a rubber pad is connected to the shielding curtain plate.
[0017] Preferably, a rotating handle is fixedly connected to the lead screw.
[0018] Preferably, a plurality of installation blocks are fixedly connected inside the contact box. Both ends of the slide rail are fixedly connected to the installation blocks.
[0019] Compared with the prior art, the present utility model provides an electric push shielding plate device for a contact box of a high-voltage switch cabinet, having the following beneficial effects:
[0020] Through the arrangement of the shielding curtain plate, the present utility model can keep the contact clean, ensure that the contact point maintains a good working state, is safe and clean, and does not affect the subsequent use of the contact. It has the advantages of simple structure, flexible movement, and reliable interlock, and is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 is a schematic structural diagram of an electric push shielding plate device for a contact box of a high-voltage switch cabinet proposed by the present utility model;
[0022] Figure 2 is a schematic structural diagram of the shielding curtain plate shielding the contact in an electric push shielding plate device for a contact box of a high-voltage switch cabinet proposed by the present utility model;
[0023] Figure 3 is a schematic structural diagram of the shielding curtain plate not shielding the contact in an electric push shielding plate device for a contact box of a high-voltage switch cabinet proposed by the present utility model;
[0024] Figure 4 is a schematic structural diagram of the interior of the contact box in an electric push shielding plate device for a contact box of a high-voltage switch cabinet proposed by the present utility model;
[0025] Figure 5 is a schematic cross-sectional view of components such as the shielding plate and the installation block in an electric push shielding plate device for a contact box of a high-voltage switch cabinet proposed by the present utility model.
[0026] In the figure: 1. Switchgear body; 101. Contact box; 201. Mounting block; 202. Slide rail; 203. Telescopic push rod; 204. Sliding block; 205. Connecting plate; 2051. Spring member; 206. Shading curtain plate; 207. Rubber pad; 301. Mounting rod; 302. Lead screw; 303. Rotating handle; 401. Lower limit; 402. Upper limit; 501. Working position limit; 502. Test position limit. Detailed implementation mode
[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
[0028] Embodiment 1:
[0029] Refer to Figures 1-5, A high-voltage switchgear contact box electric push baffle device, including a switchgear body 1, a contact box 101 is arranged inside the switchgear body 1, and further includes: two groups of slide rails 202, both installed inside the contact box 101; two groups of sliding blocks 204, slidably connected to the slide rails 202; a shielding curtain plate 206, the two ends are respectively fixedly connected to the sliding blocks 204, an opening is provided in the middle of the shielding curtain plate 206, and the shielding curtain plate 206 is used to shield the contacts inside the contact box 101. When the shielding curtain plate 206 moves on the slide rails 202, the contacts will leak out from the opening; a telescopic push rod 203, fixedly connected inside the contact box 101, and the telescopic end of the telescopic push rod 203 is fixedly connected to the sliding block 204; an upper limit 402 and a lower limit 401, both fixedly connected inside the contact box 101, and both the upper limit 402 and the lower limit 401 are used to detect the position of the shielding curtain plate 206. When the sliding block 204 presses the lower limit 401, the shielding curtain plate 206 shields the contacts inside the contact box 101. When the sliding block 204 presses the upper limit 402, the opening on the shielding curtain plate 206 leaks out the contacts; a working position limit 501 and a test position limit 502, both fixedly connected inside the contact box 101. When the trolley slides inside the contact box 101, it can respectively press the working position limit 501 and the test position limit 502 to control the extension and contraction of the telescopic push rod 203. A connecting plate 205 is fixedly connected to the sliding block 204. The connecting plate 205 is hollow and has an opening on the side, and a spring member 2051 is connected inside. The shielding curtain plate 206 is slidably connected inside the connecting plate 205 and abuts against the spring member 2051. An installation rod 301 is fixedly connected to the connecting plate 205. A lead screw 302 is threadedly connected to the installation rod 301. The lead screw 302 is used to press the shielding curtain plate 206 to make the shielding curtain plate 206 slide inside the connecting plate 205, so as to make the shielding curtain plate 206 approach and move away from the contacts. A rotating handle 303 is fixedly connected to the lead screw 302. Multiple groups of installation blocks 201 are fixedly connected inside the contact box 101, and the two ends of the slide rail 202 are respectively fixedly connected to the installation blocks 201.
[0030] When this device is in use, in the normal state as Figure 2 shown, the shielding curtain plate 206 shields the contacts inside the contact box 101. When the contact point of the trolley does not contact the contacts and the trolley is at the test position at this time, that is, the trolley abuts against the test position limit 502 at this time, the test position limit 502 acts, the power supply of the telescopic push rod 203 resumes working, and the telescopic push rod 203 drives the shielding curtain plate 206 to move to the open state, that is Figure 3 state. The trolley is pushed into the working position. At this time, the working position limit 501 acts, and the telescopic push rod 203 is powered off and stops working;
[0031] The trolley is rocked out from the working position to the test position. At this time, the working position limit switch 502 operates, the telescopic push rod 203 resumes power supply and works, and the telescopic push rod 203 drives the shielding curtain plate 206 to move to the closed state, as Figure 2 shown, playing a protective role. After the trolley moves to the test position, the test position limit switch 501 operates, the telescopic push rod 203 cuts off the power supply and stops working, and the whole process is completed.
[0032] The specific movement limit is controlled by the upper limit 402 and the lower limit 401, so that the shielding curtain plate 206 can be switched between the shielding contact point and the restoration contact point.
[0033] Specifically, when in use, the distance between the shielding curtain plate 206 and the contact point can be adjusted by rotating the lead screw 302 to ensure a tight fit between the two and prevent dust from entering through the gap.
[0034] Embodiment 2:
[0035] Referring to Figure 5 , a high-voltage switch cabinet contact box electric push shielding plate device is basically the same as Embodiment 1. Furthermore: a rubber pad 207 is connected to the shielding curtain plate 206.
[0036] Through the setting of the rubber pad 207, the gap between the shielding curtain plate 206 and the contact point is further reduced.
[0037] With the setting of the shielding curtain plate 206 in the present utility model, the contact can be kept clean, ensuring that the contact point maintains a good working state, being safe and clean, and not affecting the subsequent use of the contact. It has the advantages of simple structure, flexible operation, and reliable interlock, and is convenient to use.
[0038] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.
Claims
1. A high-voltage switchgear contact box electric push shield device, comprising a switchgear body (1), wherein a contact box (101) is arranged inside the switchgear body (1), and is characterized in that, It further includes: Two sets of slide rails (202), both installed inside the contact box (101); Two sets of sliding blocks (204), slidably connected to the slide rails (202); A shielding curtain plate (206), with both ends fixedly connected to the sliding blocks (204) respectively. An opening is provided in the middle of the shielding curtain plate (206). The shielding curtain plate (206) is used to shield the contacts inside the contact box (101). When the shielding curtain plate (206) moves on the slide rails (202), the contacts will leak out from the opening; A telescopic push rod (203), fixedly connected inside the contact box (101). The telescopic end of the telescopic push rod (203) is fixedly connected to the sliding block (204); An upper limit (402) and a lower limit (401), both fixedly connected inside the contact box (101). The upper limit (402) and the lower limit (401) are both used to detect the position of the shielding curtain plate (206). When the sliding block (204) presses the lower limit (401), the shielding curtain plate (206) shields the contacts inside the contact box (101). When the sliding block (204) presses the upper limit (402), the opening on the shielding curtain plate (206) leaks out the contacts; A working position limit (501) and a test position limit (502), both fixedly connected inside the contact box (101). When the trolley slides inside the contact box (101), it can press the working position limit (501) and the test position limit (502) respectively, which are used to control the extension and contraction of the telescopic push rod (203).
2. The electric push shield plate device for the contact box of a high-voltage switch cabinet according to claim 1, characterized in that, A connecting plate (205) is fixedly connected to the sliding block (204). The connecting plate (205) is hollow and has an opening on the side. A spring member (2051) is connected inside. The shielding curtain plate (206) is slidably connected inside the connecting plate (205) and abuts against the spring member (2051).
3. The electric push shielding baffle device for the contact box of a high-voltage switch cabinet according to claim 2, wherein, An installation rod (301) is fixedly connected to the connecting plate (205). A lead screw (302) is threadedly connected to the installation rod (301). The lead screw (302) is used to press the shielding curtain plate (206) to make the shielding curtain plate (206) slide inside the connecting plate (205), thereby making the shielding curtain plate (206) approach and move away from the contacts.
4. A high-voltage switchgear contact box electric push shielding plate device according to claim 3, characterized in that, A rubber pad (207) is connected to the shielding curtain plate (206).
5. The electric push shielding plate device for the contact box of a high-voltage switchgear according to claim 3, characterized in that, A rotating handle (303) is fixedly connected to the lead screw (302).
6. The electric push shielding plate device for the contact box of a high-voltage switch cabinet according to claim 1, characterized in that, Multiple sets of mounting blocks (201) are fixedly connected inside the contact box (101). Both ends of the slide rails (202) are connected to the mounting blocks (201).