Rapid installation mold for fireproof plug of cable inlet hole of switch cabinet
By designing a quick-installation mold and utilizing a combination of clamping screws and quick-release screws, the problem of low sealing efficiency of switch cabinet cable inlet holes was solved, achieving rapid sealing and demolding, and improving construction efficiency and the compaction effect of fireproof sealant.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN CENTURY XINGPENG ELECTRIC CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-15
AI Technical Summary
In existing technologies, the process of sealing the cable inlet hole of switch cabinet requires the cooperation of multiple people, resulting in low construction efficiency. Furthermore, traditional molds have poor adhesion to fireproof materials, making it difficult to demold quickly.
A quick-installation mold was designed, comprising a first half-ring, a second half-ring, a clamping device, and a quick-release device. It uses neodymium magnets to adhere to the bottom of the cabinet, and the fireproof putty is quickly covered and clamped by the clamping screw and the quick-release screw. Combined with the operation of the unlocking rod and the rotating shaft, quick installation and demolding are achieved.
It enables rapid sealing and demolding of cable inlet holes in switchgear, improves construction efficiency, enhances the compaction effect of fireproof sealant, and simplifies the operation process.
Smart Images

Figure CN224249178U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fireproof sealing technology for cable inlets, specifically a quick-installation mold for fireproof sealing of cable inlets in switchgear. Background Technology
[0002] Switchgear is a core device for power distribution in a power system, and the sealing of its inlet ports plays an important role in preventing the spread of fire and ensuring power safety.
[0003] In existing technologies, manual filling is required, and multiple people are needed to complete multiple processes such as mixing, filling, and compaction. The sealing time for a single point can reach two hours, which greatly reduces construction efficiency. The compaction of fireproof materials depends on the worker's strength control, and the appearance cannot be molded. Traditional steel molds or plastic molds have strong adhesion to fireproof materials, making it difficult to demold quickly. To address these issues, we propose a quick-installation mold for fireproof sealing of switch cabinet cable inlet holes. Utility Model Content
[0004] The purpose of this utility model is to provide a quick-installation mold for fireproof sealing of cable inlet holes in switch cabinets, so as to solve the problems mentioned in the background art.
[0005] The technical solution of this utility model is: a quick-installation mold for fireproof sealing of cable inlet holes in switch cabinets, including a first half-ring, a first base fixedly connected to the lower end of the first half-ring, a first connecting rod fixedly connected to the surface of the first half-ring, a second connecting rod rotatably connected to the lower surface of the first connecting rod, a second half-ring fixedly connected to the side wall of the second connecting rod, a second base fixedly connected to the lower end of the second half-ring, a pressing device provided inside both the first half-ring and the second half-ring, and a quick-release device provided outside the second half-ring.
[0006] Preferably, the clamping device includes two clamping screws, both of which are disposed above the second half-ring. Each clamping screw has a rotating handle fixedly connected to its upper end. The upper surfaces of the first and second half-rings are provided with threaded holes, and the two clamping screws are threadedly connected to their corresponding threaded holes. The lower ends of the two clamping screws penetrate the upper ends of the first and second half-rings and extend into the interior. The lower end of the clamping screw on the right side is rotatably connected to a second pressure plate, and the lower end of the clamping screw on the left side is rotatably connected to a first pressure plate. The inner walls of the first and second half-rings are provided with multiple annularly arranged sliding grooves.
[0007] Preferably, the quick-release device includes a second quick-release seat, which is fixedly connected to the surface of a second half-ring. A rotating shaft is rotatably connected to the inner wall of the second quick-release seat. A quick-release screw is fixedly connected to the surface of the rotating shaft. A first quick-release base is threadedly connected to the surface of the quick-release screw. An unlocking rod is rotatably connected to the right end of the first quick-release base. The side wall of the unlocking rod is fixedly connected to the surface of the first half-ring.
[0008] Preferably, both the first base and the second base are made of neodymium magnets.
[0009] Preferably, both the second pressure plate and the first pressure plate have protrusions on their surfaces, and the protrusions are slidably connected to the inner wall of the groove.
[0010] This utility model provides an improved quick-installation mold for fireproof sealing of cable inlet holes in switchgear, which has the following improvements and advantages compared with the prior art:
[0011] Firstly, this utility model incorporates an unlocking rod. Rotating the unlocking rod causes it to gradually move away from the first quick-release base under the action of the quick-release screw. Then, rotating the shaft disengages the unlocking rod from the opening of the first quick-release base. Since the surface of the first half-ring is fixedly connected to a first connecting rod, and the surface of the second half-ring is fixedly connected to a second connecting rod, the second half-ring and the second connecting rod are rotatably connected. This allows the first and second half-rings to open without separating, enabling them to fit over the wire and inlet to be covered. Fireproof putty is then placed between the first and second half-rings. Rotating the shaft causes the quick-release screw to engage with the first quick-release base. Tightening the unlocking rod secures the wire. As the unlocking rod tightens, the fireproof putty inside the first and second half-rings is gradually compressed, thus covering the wire.
[0012] Secondly, this utility model, by setting a first base, which is made of neodymium magnet, allows the first and second half-rings to be attracted to the bottom of the cabinet under the action of the first base. At this time, by turning the rotating handle, the rotating handle drives the clamping screw to rotate. With the action of the thread, the clamping screw gradually moves down and then presses against the second pressure plate and the first pressure plate, so that the second pressure plate and the first pressure plate move downward under the constraint of the sliding groove. At this time, the second pressure plate and the first pressure plate will squeeze the internal fireproof mud, thereby sealing the inlet hole and further pressing the fireproof mud. Attached Figure Description
[0013] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0014] Figure 1 This is a front view structural diagram of the present invention;
[0015] Figure 2 This is a side view of the structure of this utility model;
[0016] Figure 3 This is a bottom view of the structure of this utility model.
[0017] Explanation of reference numerals in the attached figures:
[0018] 1. First half-ring; 2. First base; 3. First connecting rod; 4. Second connecting rod; 5. Second half-ring; 6. Second base; 7. Clamping screw; 8. Rotating handle; 9. Second pressure plate; 10. First pressure plate; 11. Slide groove; 12. Second quick-release seat; 13. Rotating shaft; 14. Quick-release screw; 15. First quick-release base; 16. Unlocking rod. Detailed Implementation
[0019] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.
[0020] This utility model provides an improved quick-installation mold for fireproof sealing of cable inlet holes in switchgear. The technical solution of this utility model is as follows:
[0021] like Figure 1 - Figure 3 As shown, a quick-installation mold for fireproof sealing of cable inlet holes in switchgear includes a first half-ring 1, a first base 2 fixedly connected to the lower end of the first half-ring 1, a first connecting rod 3 fixedly connected to the surface of the first half-ring 1, a second connecting rod 4 rotatably connected to the lower surface of the first connecting rod 3, a second half-ring 5 fixedly connected to the side wall of the second connecting rod 4, a second base 6 fixedly connected to the lower end of the second half-ring 5, a clamping device is provided inside both the first half-ring 1 and the second half-ring 5, and a quick-release device is provided on the outside of the second half-ring 5.
[0022] Furthermore, the clamping device includes two clamping screws 7, both of which are positioned above the second half-ring 5. Each clamping screw 7 has a fixed rotating handle 8 at its upper end. Threaded holes are provided on the upper surfaces of both the first half-ring 1 and the second half-ring 5. The two clamping screws 7 are threadedly connected to their corresponding threaded holes. The lower ends of both clamping screws 7 penetrate the upper ends of the first half-ring 1 and the second half-ring 5 and extend into the interior. A second pressure plate 9 is rotatably connected to the lower end of the right-side clamping screw 7, and a first pressure plate 10 is rotatably connected to the lower end of the left-side clamping screw 7. Multiple annularly arranged sliding grooves 11 are provided on the inner walls of both the first half-ring 1 and the second half-ring 5. By setting the clamping screws 7, the rotating handle 8 drives the clamping screws 7 to rotate, thereby pressing the clamping screws 7 against the second pressure plate 9 and the first pressure plate 10 and pressing them down, achieving further compaction and plasticity of the fireproof putty.
[0023] Furthermore, the quick-release device includes a second quick-release seat 12, which is fixedly connected to the surface of the second half-ring 5. A rotating shaft 13 is rotatably connected to the inner wall of the second quick-release seat 12. A quick-release screw 14 is fixedly connected to the surface of the rotating shaft 13. A first quick-release base 15 is threadedly connected to the surface of the quick-release screw 14. An unlocking rod 16 is rotatably connected to the right end of the first quick-release base 15. The side wall of the unlocking rod 16 is fixedly connected to the surface of the first half-ring 1. By setting the unlocking rod 16, the unlocking rod 16 is rotated away from the first quick-release base 15, and then the quick-release screw 14 is rotated to disengage from the first quick-release base 15, thereby achieving quick release.
[0024] Furthermore, both the first base 2 and the second base 6 are made of neodymium magnets. By setting the first base 2 and the second base 6 to be made of neodymium magnets, the first half-ring 1 and the second half-ring 5 can be used to attract the cabinet.
[0025] Furthermore, both the second pressure plate 9 and the first pressure plate 10 have protrusions on their surfaces, and these protrusions are slidably connected to the inner wall of the slide groove 11. By providing protrusions on the surfaces of the second pressure plate 9 and the first pressure plate 10 and utilizing their slidable connection with the slide groove 11, the second pressure plate 9 and the first pressure plate 10 can move vertically under the action of the clamping screw 7.
[0026] Working principle: By setting the unlocking rod 16, rotating the unlocking rod 16 causes it to gradually move away from the first quick-release base 15 under the action of the quick-release screw 14. Then, by rotating the shaft 13, the unlocking rod 16 disengages from the opening of the first quick-release base 15. Since the surface of the first half-ring 1 is fixedly connected to the first connecting rod 3, and the surface of the second half-ring 5 is fixedly connected to the second connecting rod 4, the second half-ring 5 and the second connecting rod 4 are rotatably connected, allowing the first half-ring 1 and the second half-ring 5 to open without separating. This allows the opening of the first half-ring 1 and the second half-ring 5 to fit over the wire and inlet that need to be covered. Fireproof putty is then placed into the first half-ring 1 and the second half-ring 5. By rotating the shaft 13, the quick-release screw 14 is engaged in the first quick-release base 15. Tightening the unlocking rod 16 secures the wire. As the unlocking rod 16 is gradually tightened, the fireproof putty inside the first half-ring 1 and the second half-ring 5 is gradually squeezed together. To achieve wire wrapping, a first base 2 and a second base 6 are set up. Since the first base 2 and the second base 6 are made of neodymium magnets, the first half-ring 1 and the second half-ring 5 can be attracted to the bottom of the cabinet under the action of the first base 2 and the second base 6. At this time, by turning the rotating handle 8, the rotating handle 8 drives the clamping screw 7 to rotate. At this time, with the action of the thread, the clamping screw 7 gradually moves down and then presses against the second pressure plate 9 and the first pressure plate 10. This causes the second pressure plate 9 and the first pressure plate 10 to move downward under the constraint of the sliding groove 11. At this time, the second pressure plate 9 and the first pressure plate 10 will squeeze the fireproof putty inside, thereby sealing the wire inlet hole and further pressing the fireproof putty. As the rotating handle 8 continues to rotate, under the force of the second pressure plate 9 and the first pressure plate 10, the first base 2 and the second base 6 finally separate from the bottom of the cabinet, realizing demolding. This integrates wire wrapping, wire inlet hole sealing, fireproof putty shaping, and rapid demolding, greatly increasing work efficiency.
[0027] The foregoing description enables those skilled in the art to implement or use this invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this invention. Therefore, this invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A quick-installation mold for fireproof sealing of cable inlet holes in switchgear, comprising a first half-ring (1), characterized in that: The lower end of the first half ring (1) is fixedly connected to the first base (2), the surface of the first half ring (1) is fixedly connected to the first connecting rod (3), the lower surface of the first connecting rod (3) is rotatably connected to the second connecting rod (4), the side wall of the second connecting rod (4) is fixedly connected to the second half ring (5), the lower end of the second half ring (5) is fixedly connected to the second base (6), the inside of the first half ring (1) and the second half ring (5) are both provided with a pressing device, and the outside of the second half ring (5) is provided with a quick release device.
2. The quick-installation mold for fireproof sealing of cable inlet holes in switchgear according to claim 1, characterized in that: The clamping device includes two clamping screws (7), both of which are located above the second half-ring (5). Each clamping screw (7) has a rotating handle (8) fixedly connected to its upper end. The upper surfaces of the first half-ring (1) and the second half-ring (5) are provided with threaded holes. The two clamping screws (7) are threadedly connected to their corresponding threaded holes. The lower ends of the two clamping screws (7) pass through the upper ends of the first half-ring (1) and the second half-ring (5) and extend into the interior. The lower end of the clamping screw (7) on the right side is rotatably connected to a second pressure plate (9), and the lower end of the clamping screw (7) on the left side is rotatably connected to a first pressure plate (10). The inner walls of the first half-ring (1) and the second half-ring (5) are provided with multiple annularly arranged sliding grooves (11).
3. The quick-installation mold for fireproof sealing of cable inlet holes in switchgear according to claim 1, characterized in that: The quick-release device includes a second quick-release seat (12), which is fixedly connected to the surface of the second half-ring (5). The inner wall of the second quick-release seat (12) is rotatably connected to a rotating shaft (13), and the surface of the rotating shaft (13) is fixedly connected to a quick-release screw (14). The surface of the quick-release screw (14) is threadedly connected to a first quick-release base (15), and the right end of the first quick-release base (15) is rotatably connected to an unlocking rod (16). The side wall of the unlocking rod (16) is fixedly connected to the surface of the first half-ring (1).
4. The quick-installation mold for fireproof sealing of cable inlet holes in switchgear according to claim 1, characterized in that: Both the first base (2) and the second base (6) are made of neodymium magnets.
5. The quick-installation mold for fireproof sealing of cable inlet holes in switchgear according to claim 2, characterized in that: The surfaces of the second pressure plate (9) and the first pressure plate (10) are provided with protrusions, and the protrusions are slidably connected to the inner wall of the slide groove (11).