A switchgear cable sealing joint

Abstract

The utility model belongs to the switchgear technical field, specifically is a kind of switchgear cable sealing joint, including the fixed seat of fixed setting at the cabinet cable hole hole, the tapered hole of being communicated with the inside of cabinet is opened in fixed seat, further include tapered rubber sealing ring, and the driving component for pushing sealing ring shape change, driving component is by the abutting portion of insertion fixed seat and the fixed connecting portion of set in the fixed seat outer wall, with its thread cooperation, abutting portion is close to the tapered convex ring of sealing ring one end, sealing ring is correspondingly opened with the tapered recess of adaptation, and sealing ring circumferential place is equipped with convex, equidistantly set in on abutting portion Assembly through-hole, hole is equipped with linkage arm, fixed seat inner wall is equipped with the convex ball that can drive linkage arm to swing towards axis, driving component and fixed seat assembly, realize double sealing and cable fixation simultaneously, improve protection level and installation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of switch cabinet technology, specifically a switch cabinet cable sealing connector. Background Technology

[0002] Switchgear is a core device in power systems for power distribution, equipment control and electrical protection. It is widely used in power distribution scenarios such as industrial plants and civil buildings. External cables need to be run through cable holes in the cabinet to realize the transmission of internal and external power and signal interaction. Reliable treatment of the holes is an important prerequisite for ensuring the stable operation of the internal components of the switchgear.

[0003] The current technology for sealing cable holes in switchgear cabinets has the following drawbacks: most existing sealing methods involve filling the gap between the cabinet hole and the cable with sealant, or achieving sealing through a single sealing surface, resulting in poor sealing performance; furthermore, the cable fixing components and sealing components are independent, which not only increases the assembly steps and the number of parts, but also reduces the overall installation efficiency due to the separate operation of sealing and fixing. Therefore, a switchgear cable sealing joint is proposed to address the above problems. Utility Model Content

[0004] To address the shortcomings of existing switch cabinet cabinet cable hole sealing, a switch cabinet cable sealing joint is proposed.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The switch cabinet cable sealing connector of this utility model includes a fixed seat fixedly installed at the cable hole of the cabinet. The fixed seat has a conical hole communicating with the inside of the cabinet. It also includes a conical rubber sealing ring and a driving component for pushing the conical surface of the conical rubber sealing ring to fit with the conical surface of the conical hole. The conical hole, the conical rubber sealing ring and the driving component all have holes for the cable to pass through. When the driving component is assembled with the fixed seat, the driving component pushes the conical rubber sealing ring to abut against the conical hole, and the conical rubber sealing ring changes its inner diameter to fit tightly against the surface of the cable.

[0006] Preferably, the driving component includes an abutment portion inserted into the fixed seat for driving the conical rubber sealing ring, and a fixed connection portion sleeved on the outer wall of the fixed seat and threadedly fixed thereto.

[0007] Preferably, the abutting part is provided with a conical protrusion at one end near the conical rubber sealing ring, and the conical rubber sealing ring is provided with a conical groove at one end near the abutting part that matches the shape of the conical protrusion. The conical rubber sealing ring is provided with a protrusion at the circumference of one end near the abutting part. When the abutting part pushes the conical rubber sealing ring to change shape, the conical protrusion inserts into the conical groove, causing it to deform and push the protrusion to abut against the inner wall of the fixing seat.

[0008] Preferably, the abutment portion has several equidistant assembly through holes, and a connecting arm is provided in the assembly through holes. The inner wall of the fixed seat is provided with a convex ball for driving the connecting arm to swing towards the axis. When the fixed seat is assembled with the driving component, the convex ball squeezes the connecting arm so that one side of it squeezes the cable.

[0009] Preferably, the fixing seat, the conical rubber sealing ring, and the driving component are coaxially arranged with the cable hole of the cabinet.

[0010] The beneficial effects of this utility model are:

[0011] This utility model provides a cable sealing connector for switch cabinets. By engaging the conical hole of the fixed base with the conical surface of the conical rubber sealing ring, and combined with the pushing action of the drive component, the radial deformation of the conical rubber sealing ring can achieve a tight fit with the cable. It can also adapt to cables of different diameters, improving versatility. The drive component adopts a split design with a conical convex ring at the abutment part and a threaded engagement at the fixed connection part. The conical convex ring and the conical groove of the conical rubber sealing ring are precisely matched to guide the force. At the same time, the convexity of the conical rubber sealing ring abuts against the inner wall of the fixed base as it deforms, forming a double sealing structure between the conical rubber sealing ring and the cable, and between the convexity and the fixed base, enhancing the sealing performance and meeting the requirements for higher dustproof and waterproof protection levels.

[0012] The connecting arm of the contact part works in conjunction with the convex ball on the inner wall of the fixed seat. With the help of the assembly action of the drive component and the fixed seat, the connecting arm can be driven to circumferentially squeeze the cable. This achieves both sealing and stable clamping of the cable to prevent axial slippage, without the need for additional assembly steps, thus balancing sealing reliability and installation convenience. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0014] Figure 1 This is a cross-sectional view of the overall structure of this utility model in its assembled state;

[0015] Figure 2 This is a cross-sectional view of the overall structure of this utility model in its unassembled state;

[0016] Legend:

[0017] 01. Cable; 1. Cabinet; 2. Mounting base; 3. Tapered hole; 4. Tapered rubber sealing ring; 5. Drive component; 501. Abutment part; 502. Fixing connection part; 6. Tapered convex ring; 7. Tapered groove; 8. Protrusion; 9. Assembly through hole; 10. Linkage arm; 11. Convex ball. Detailed Implementation

[0018] 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.

[0019] Specific implementation examples are given below.

[0020] Please see Figures 1-2 The present invention discloses a cable sealing connector for a switch cabinet, comprising a fixing seat 2 fixedly disposed at a cable hole in a cabinet 1, wherein the fixing seat 2 has a conical hole 3 communicating with the interior of the cabinet 1, a conical rubber sealing ring 4, and a driving component 5 for pushing the conical surface of the conical rubber sealing ring 4 to fit against the conical surface of the conical hole 3. The conical hole 3, the conical rubber sealing ring 4, and the driving component 5 are all provided with holes for a cable 01 to pass through. All three components are coaxially arranged with the cable hole of cabinet 1. When the drive component 5 is assembled with the fixed base 2, the drive component 5 pushes the conical rubber sealing ring 4 to abut against the conical hole 3, and the conical rubber sealing ring 4 deforms its inner diameter to fit tightly against the surface of the cable 01. During operation, the conical rubber sealing ring 4 is first placed into the conical hole 3 in the fixed base 2, and then the drive component 5 is initially fitted onto the fixed base 2. Then, the external cable 01 passes through the drive component 5, the conical rubber sealing ring 4, and the conical hole 3 on the fixed base 2 in sequence to the inside of cabinet 1. After connecting the electrical components, the drive component 5 is assembled with the fixed base 2. During the assembly process, the drive component 5 generates an axial thrust on the conical rubber sealing ring 4, pushing it towards the conical hole 3 of the fixed base 2. This causes the conical surface of the conical rubber sealing ring 4 to gradually fit with the conical surface of the conical hole 3. As the fit deepens, the conical rubber sealing ring 4 undergoes radial deformation under the compression of the conical surface of the conical hole 3, and its inner diameter gradually decreases, eventually fitting tightly against the surface of the cable 01. This achieves a sealed connection between the cable 01 and the connector at the cable hole of the cabinet 1. Through the design of the conical hole 3 and the conical surface of the conical rubber sealing ring 4, the thrust of the drive component 5 makes the sealing ring fit tightly against the cable 01, effectively filling the gap between the cable 01 and the hole. The sealing effect is reliable and can prevent dust, moisture, etc. from entering the interior of the cabinet 1 from the gaps, ensuring the normal operation of the electrical components of the switch cabinet. Furthermore, the deformation of the conical rubber sealing ring 4 has a certain range of adaptability, which can adapt to cables 01 of different diameters, improving its versatility and applicability.

[0021] Furthermore, the driving component 5 includes an abutment portion 501 inserted into the fixed base 2 for driving the deformation of the conical rubber sealing ring 4, and a fixed connection portion 502 sleeved on the outer wall of the fixed base 2 and threadedly fixed thereto. The abutment portion 501 has a conical protrusion 6 at one end near the conical rubber sealing ring 4, and the conical rubber sealing ring 4 has a conical groove 7 at one end near the abutment portion 501 that matches the shape of the conical protrusion 6. The conical rubber sealing ring 4 has a protrusion 8 on its circumference at one end near the abutment portion 501. When the abutment portion 501 pushes the conical rubber sealing ring 4 to deform, the conical protrusion 6 inserts into the conical groove 7, causing it to deform and push the protrusion 8 against the inner wall of the fixed base 2. During operation and assembly, the fixed connection portion 502 is threadedly engaged with the outer wall of the fixed base 2, rotating the fixed connection portion 502 to drive the abutment portion 501. The cable 01 moves towards the interior of the fixed base 2, and the abutment part 501 gradually approaches the conical rubber sealing ring 4 and pushes it towards the conical hole 3. As the abutment part 501 continues to advance, the conical convex ring 6 gradually inserts into the conical groove 7, generating a combined radial and axial force on the conical rubber sealing ring 4, causing the conical surface of the conical rubber sealing ring 4 to fit tightly against the conical surface of the conical hole 3. At the same time, the protrusion 8 at the circumference of the sealing ring expands outward under the action of deformation force and fits tightly against the inner wall of the fixed base 2, realizing a double seal between the cable 01 and the fixed base 2. The cooperation between the drive component 5 and the fixed base 2 makes the protrusion 8 abut against the inner wall of the fixed base 2, forming a double sealing structure in which the conical rubber sealing ring 4 fits against the cable 01 and the protrusion 8 fits against the inner wall of the fixed base 2, further enhancing the sealing performance and making it suitable for scenarios with higher protection requirements such as dustproof and waterproof.

[0022] Furthermore, the abutment portion 501 is provided with several equidistant mounting through holes 9, and a connecting arm 10 is provided in each mounting through hole 9. The inner wall of the fixed base 2 is provided with a convex ball 11 for driving the connecting arm 10 to swing towards the axis. When the fixed base 2 is assembled with the driving component 5, the convex ball 11 presses the connecting arm 10 so that one side of it presses against the cable 01. During operation, when the abutment portion 501 is pushed into the fixed base 2 through the threaded engagement of the fixed connection portion 502, as the abutment portion 501 goes deeper, the convex ball 11 on the inner wall of the fixed base 2 gradually contacts the connecting arm 10 and generates a pressing force on it. Under the pressure of the convex ball 11, the connecting arm 10 moves closer to the cable 01. As cable 01 swings in the direction of rotation, the side of the connecting arm 10 closest to the axis gradually contacts the surface of cable 01 and applies pressure. When the drive component 5 and the fixed seat 2 are assembled in place, the pressure of the convex ball 11 on the connecting arm 10 reaches a stable state. Multiple connecting arms 10 tightly press the cable 01 from multiple positions around the circumference, forming a synergistic effect with the radial deformation sealing of the conical rubber sealing ring 4, thereby achieving both fixing and sealing of the cable 01. The assembly action of the drive component 5 and the fixed seat 2 not only achieves sealing of the cable 01 but also clamps and fixes the cable 01 to prevent it from sliding axially and becoming unstable in the hole, without adding any additional assembly steps.

[0023] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A cable sealing connector for switchgear, characterized in that: The device includes a fixed base (2) fixedly installed at the cable hole of the cabinet (1), the fixed base (2) having a conical hole (3) communicating with the inside of the cabinet (1), a conical rubber sealing ring (4), and a driving component (5) for pushing the conical surface of the conical rubber sealing ring (4) to fit with the conical surface of the conical hole (3). The conical hole (3), the conical rubber sealing ring (4), and the driving component (5) all have holes for the cable (01) to pass through. When the driving component (5) is assembled with the fixed base (2), the driving component (5) pushes the conical rubber sealing ring (4) to abut against the conical hole (3), and the conical rubber sealing ring (4) deforms its inner diameter to fit tightly against the surface of the cable (01).

2. The switchgear cable sealing connector according to claim 1, characterized in that: The driving component (5) includes an abutment part (501) inserted into the fixed seat (2) for driving the deformation of the conical rubber sealing ring (4), and a fixed connection part (502) sleeved on the outer wall of the fixed seat (2) and threadedly fixed thereto.

3. A cable sealing connector for a switchgear according to claim 2, characterized in that: The abutment part (501) is provided with a conical protrusion (6) at one end near the conical rubber sealing ring (4). The conical rubber sealing ring (4) is provided with a conical groove (7) that matches the shape of the conical protrusion (6) at one end near the abutment part (501). The conical rubber sealing ring (4) is provided with a protrusion (8) at one end near the abutment part (501). When the abutment part (501) pushes the conical rubber sealing ring (4) to deform, the conical protrusion (6) is inserted into the conical groove (7) and its deformation pushes the protrusion (8) to abut against the inner wall of the fixing seat (2).

4. A switchgear cable sealing connector according to claim 2 or 3, characterized in that: The abutment part (501) has several assembly through holes (9) at equal intervals. A connecting arm (10) is provided in the assembly through hole (9). The inner wall of the fixed seat (2) is provided with a convex ball (11) for driving the connecting arm (10) to swing towards the axis. When the fixed seat (2) is assembled with the driving component (5), the convex ball (11) squeezes the connecting arm (10) so that one side of it squeezes the cable (01).

5. A switchgear cable sealing connector according to claim 1, characterized in that: The fixed base (2), the conical rubber sealing ring (4), and the drive component (5) are coaxially arranged with the cable hole of the cabinet (1).

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