Cable inlet and outlet bottom plate structure of switch cabinet

Abstract

The utility model relates to the technical field of switch cabinets, and discloses a cable incoming and outgoing line bottom plate structure of a switch cabinet, which comprises a bottom plate body and a movable cover plate, one end of the bottom plate body is provided with a rectangular incoming and outgoing line port, and the movable cover plate is arranged on the bottom plate body in a sliding manner and is used for shielding the incoming and outgoing line port; a surrounding plate is arranged on one side, far away from the movable cover plate, of the wire inlet / outlet on the bottom plate body; the side, close to the wire inlet and outlet, of the surrounding plate is provided with an adhesive tape, the width of the adhesive tape is larger than the distance between the wire inlet and outlet and the surrounding plate, and the side, close to the wire inlet and outlet, of the adhesive tape is provided with a plurality of opening type wire embedding grooves arranged at equal intervals in the length direction of the adhesive tape. The end, close to the wire inlet and outlet, of the movable cover plate is provided with an extrusion plate used for pressing the rubber strip. The size of the wire inlet and the wire outlet can be adjusted through the movable cover plate, meanwhile, the rubber strip is fixed in the surrounding plate on the bottom plate body, the wire embedding groove is formed in the rubber strip, the cable is embedded in the rubber strip, after the cable is arranged, sealing can be achieved by pressing the rubber strip through the extrusion plate, and the sealing effect is good.

Description

Technical Field

[0001] This utility model relates to the field of switchgear technology, and in particular to a cable inlet / outlet base plate structure for switchgear. Background Technology

[0002] Existing switchgear base plates generally have knockout holes for cable entry and exit. Some also have cable entry and exit ports on the base plate, with a cover plate on the port and a knockout hole on the cover plate. During construction, the knockout holes are knocked out before the cable is threaded through. The threading process is limited by the diameter of the knockout holes, resulting in low threading efficiency and easy damage to the cable surface. After the cable is threaded through, fireproof putty is needed to seal the gap between the cable and the knockout holes, making the construction operation cumbersome.

[0003] Chinese patent application CN202121613615.3, filed on July 15, 2021, discloses a push-pull cable outlet device for a switchgear. It employs a push-pull structure design, where a push plate slides on the base plate, allowing adjustment of the outlet hole size to accommodate cables of different sizes and quantities. The first and second sealing strips are made of elastic material and effectively seal the cables, thus improving the sealing performance of the cable outlet device. Therefore, this push-pull cable outlet device for the switchgear has the advantages of simple structure, stable and reliable performance, convenient assembly, and good sealing effect. However, while this base plate structure can adjust the size of the inlet and outlet holes to accommodate cables of different sizes and quantities, it still has the following problems:

[0004] After the cable is threaded through, the first sealing strip on the push plate presses the cable tightly. Due to the presence of the cable, there is a certain gap between the first and second sealing strips, resulting in poor sealing. Fireproof putty is then used to seal this gap.

[0005] Based on this, this application provides a cable inlet / outlet base plate structure for a switchgear that allows for easy adjustment of the size of the inlet / outlet ports and provides good sealing performance. Utility Model Content

[0006] This utility model aims to solve the technical problems existing in the prior art. Therefore, this utility model provides a cable inlet / outlet base plate structure for a switchgear that allows for easy adjustment of the inlet / outlet size and provides good sealing.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A cable inlet / outlet base plate structure for a switch cabinet is provided, including a base plate body and a movable cover plate. One end of the base plate body is provided with a rectangular inlet / outlet port. The movable cover plate is slidably disposed on the base plate body at the end away from the inlet / outlet port to cover the inlet / outlet port. A surrounding plate is provided on the side of the base plate body away from the movable cover plate from the inlet / outlet port. An adhesive strip is provided on the side of the surrounding plate near the inlet / outlet port. The width of the adhesive strip is greater than the distance between the inlet / outlet port and the surrounding plate, and the adhesive strip has a plurality of open-type wire embedding grooves arranged at equal intervals along its length on the side near the inlet / outlet port. A pressing plate is provided on the end of the movable cover plate near the inlet / outlet port to press the adhesive strip.

[0009] In some optional embodiments, the movable cover plate is provided with two parallel oblong holes, and a limiting post is inserted into the oblong hole, the limiting post being screwed onto the base plate body.

[0010] In some alternative embodiments, the inlay groove consists of a round hole and an open groove, and the opening of the open groove is provided with a guide groove.

[0011] In some alternative embodiments, the inlet / outlet is provided with a U-shaped groove on the side of the enclosure relative to each wire slot, the width of the U-shaped groove being greater than the diameter of the circular hole of the wire slot.

[0012] In some alternative embodiments, the enclosure consists of side panels and end panels located at both ends of the side panels, with the distance between the two end panels equal to the length of the adhesive strip.

[0013] In some alternative embodiments, the height of the extrusion plate is equal to the thickness of the adhesive strip, and its length is less than or equal to the distance between the two end plates.

[0014] In some alternative embodiments, the outer side of the end plate is further provided with a pull plate perpendicular to it, and the two sides of the movable cover plate are further provided with ear plates, and tie bolts are installed on the ear plates, the tie bolts being threadedly connected to the pull plates.

[0015] In some alternative embodiments, the adhesive strip is made of silicone or EPDM rubber.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model allows the size of the cable inlet and outlet to be adjusted via a movable cover plate. Simultaneously, a surrounding plate is installed on the base plate body, and the adhesive strip is fixed inside the surrounding plate. The adhesive strip has a cable embedding groove, which is used to embed the cable inside the adhesive strip to achieve a sealing effect. After the cable is arranged, the extrusion plate of the movable cover plate can be used to press the adhesive strip to achieve a seal, and the sealing effect is good. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0019] Figure 1 This is an exploded view of the cable inlet and outlet base plate structure of the switchgear provided by this utility model;

[0020] Figure 2 yes Figure 1 Assembly drawings of the cable inlet and outlet base plate structure of the provided switchgear;

[0021] Figure 3 yes Figure 2 A diagram showing the sealing status of the cable inlet and outlet base plate structure of the provided switchgear;

[0022] Figure 4 yes Figure 1 A 3D view of the provided adhesive strip;

[0023] Figure 5 yes Figure 1 A 3D view of the provided active cover plate.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1—Base plate body, 1.1—Inlet / outlet port, 1.2—U-shaped groove, 2—Modible cover plate, 2.1—Oval hole, 2.2—Ear plate, 3—Surround plate, 3.1—Side plate, 3.2—End plate, 3.3—Pull plate, 4—Glue strip, 4.1—Wire groove, 4.1.1—Round hole, 4.1.2—Open groove, 4.1.3—Guide groove, 5—Extrusion plate, 6—Limiting post, 7—Tie bolt. Detailed Implementation

[0026] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. The terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0029] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] Example 1

[0031] As attached Figure 1 To be continued Figure 5 As shown, this embodiment provides a cable inlet / outlet base plate structure for a switchgear, including a base plate body 1, a movable cover plate 2, a surrounding plate 3, a rubber strip 4, and an extrusion plate 5.

[0032] in:

[0033] One end of the base plate body 1 is provided with a rectangular inlet / outlet port 1.1 for threading wires.

[0034] The movable cover plate 2 is slidably disposed on the base plate body 1 at one end away from the inlet / outlet port 1.1, and is used to block the inlet / outlet port. In this embodiment, the sliding installation structure is preferably provided with two parallel oblong holes 2.1 on the movable cover plate 2, and a limiting post 6 is inserted into the oblong hole. The limiting post 6 is screwed to the base plate body 1.

[0035] The enclosure 3 is located on the bottom plate body 1 on the side away from the movable cover plate 2 at the inlet / outlet port 1.1.

[0036] The adhesive strip 4 is located on the side of the enclosure 3 near the cable inlet / outlet 1.1, and the width of the adhesive strip 4 is greater than the distance between the cable inlet / outlet 1.1 and the enclosure 3, extending one side into the cable inlet / outlet. In this embodiment, the adhesive strip 4 is installed by adhesive bonding. Multiple open-type cable embedding grooves 4.1, evenly spaced along the length of the adhesive strip 4, are provided on the side near the cable inlet / outlet 1.1 for embedding cables. Embedding one or more cables within the adhesive strip provides excellent sealing. In this embodiment, the adhesive strip 4 is preferably made of silicone or EPDM rubber, which has excellent high-temperature resistance and flame-retardant properties.

[0037] The extrusion plate 5 is located on the movable cover plate 2 at one end near the inlet / outlet port 1.1, and is used to press the rubber strip 4 so that the cable groove can wrap the cable and ensure a seal.

[0038] Preferred options are listed below. Figure 4 As shown, the wire embedding groove 4.1 on the adhesive strip 4 in this embodiment is composed of a round hole 4.1.1 and an open groove 4.1.2, and the opening of the open groove 4.1.2 is provided with a guide groove 4.1.3. The guide groove facilitates the cable to enter the round hole from the open groove.

[0039] Preferred options are listed below. Figure 1 As shown, the inlet / outlet 1.1 is provided with a U-shaped groove 1.2 on the side of the enclosure 3 near each wire inlet groove 4.1. The width of the U-shaped groove 1.2 is greater than the diameter of the circular hole of the wire inlet groove 4.1. This design can prevent part of the bottom plate body at the bottom of the adhesive strip from interfering with the cable.

[0040] In practice, before installing the cable, loosen the limiting post and push the movable cover backward to fully or partially expose the cable inlet and outlet, as shown in the attached document. Figure 2 As shown, thread the cable through the inlet / outlet port, and insert one or more cables sequentially into the groove of the rubber strip (one thick cable into the groove, multiple thin cables can be inserted together). Then push the movable cover forward, as shown in the attached diagram. Figure 3 As shown, the extrusion plate presses the rubber strip tightly, causing the rubber strip to deform under pressure. The opening of the wire embedding groove closes, and the round hole also wraps the cable, achieving a complete seal. Finally, the limiting post is tightened to fix the movable cover plate.

[0041] Example 2

[0042] Based on Embodiment 1, this embodiment further optimizes the design of the enclosure panel, as shown in the attached figure. Figure 1 To be continued Figure 3 As shown, the enclosure 3 in this embodiment consists of a side plate 3.1 and end plates 3.2 located at both ends of the side plate. The distance between the two end plates 3.2 is equal to the length of the adhesive strip 4. This design allows the adhesive strip to be fixed within the enclosed space formed by the side plate, end plates and bottom plate body, making it convenient for positioning and installation.

[0043] Preferably, the height of the extrusion plate 5 is equal to the thickness of the adhesive strip 4, and its length is less than or equal to the distance between the two end plates. This design allows for easy adjustment of the amount of pressure applied to the adhesive strip by the extrusion plate.

[0044] Example 3

[0045] Based on Example 2, as shown in the appendix Figure 1 To be continued Figure 3 Appendix Figure 5 As shown, this embodiment further includes a pull plate 3.3 perpendicular to the outer side of the end plate 3.2, and ear plates 2.2 on both sides of the movable cover plate 2. Tie bolts 7 are installed on the ear plates 2.2 and are threadedly connected to the pull plate 3.3. This design allows for adjustment of the extrusion amount of the extrusion plate using the tie bolts, while also improving the fixing reliability of the movable cover plate. It eliminates the need to operate the limiting pins to lock the movable cover plate, allowing the limiting pins to only limit the movement of the movable cover plate.

[0046] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A cable inlet / outlet base plate structure for a switchgear, comprising a base plate body and a movable cover plate, wherein one end of the base plate body is provided with a rectangular inlet / outlet port, and the movable cover plate is slidably disposed on the base plate body at the end furthest from the inlet / outlet port, for blocking the inlet / outlet port; characterized in that: The base plate body is provided with a surrounding panel on the side of the inlet / outlet port away from the movable cover plate; The enclosure panel is provided with an adhesive strip on the side near the inlet / outlet of the cable. The width of the adhesive strip is greater than the distance between the inlet / outlet of the cable and the enclosure panel. The adhesive strip is provided with a plurality of open-type cable grooves arranged at equal intervals along its length on the side near the inlet / outlet of the cable. The movable cover plate is equipped with a pressing plate at one end near the inlet / outlet of the line to press the rubber strip.

2. The cable inlet / outlet base plate structure of the switchgear according to claim 1, characterized in that: The movable cover plate has two parallel oval holes, and a limiting post is inserted into the oval hole. The limiting post is screwed onto the base plate body.

3. The cable inlet / outlet base plate structure of the switchgear according to claim 1, characterized in that: The inlay groove consists of a round hole and an open groove, and the opening of the open groove is provided with a guide groove.

4. The cable inlet / outlet base plate structure of the switchgear according to claim 3, characterized in that: Each wire inlet / outlet has a U-shaped groove on the side near the enclosure, with the width of the U-shaped groove being greater than the diameter of the circular hole in the wire inlet / outlet.

5. The cable inlet / outlet base plate structure of the switchgear according to claim 1, characterized in that: The enclosure consists of side panels and end panels located at both ends of the side panels, and the distance between the two end panels is equal to the length of the adhesive strip.

6. The cable inlet / outlet base plate structure of the switchgear according to claim 5, characterized in that: The height of the extrusion plate is equal to the thickness of the rubber strip, and its length is less than or equal to the distance between the two end plates.

7. The cable inlet / outlet base plate structure of the switchgear according to claim 5, characterized in that: The outer side of the end plate is also provided with a pull plate perpendicular to it, and the two sides of the movable cover plate are also provided with ear plates. Tie bolts are installed on the ear plates and the tie bolts are threadedly connected to the pull plates.

8. The cable inlet / outlet base plate structure of the switchgear according to claim 1, characterized in that: The adhesive strip is made of silicone or EPDM rubber.

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