Fixing mechanism of electric appliance control device
By designing a fixing mechanism for the side guard frame, protective frame, and liquid guide pipe, the problems of difficult disassembly of electrical control devices on DIN rails and protection against spontaneous combustion were solved, achieving rapid disassembly and effective fire extinguishing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN QINGCAI INFORMATION TECH CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-15
AI Technical Summary
Existing electrical control devices are difficult to disassemble on DIN rails, and in the event of spontaneous combustion, it is difficult to quickly extinguish the fire and protect other parts of the control cabinet.
A fixing mechanism including a side guard frame, a protective frame, and a liquid guide pipe was designed. The electrical control device is fixed by fastening bolts, and the liquid guide pipe is used to spray extinguishing agent for protection in the event of spontaneous combustion.
It enables quick disassembly of electrical control devices and effective fire extinguishing protection in case of spontaneous combustion, preventing damage to other parts of the control cabinet.
Smart Images

Figure CN224249211U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixing mechanism technology, specifically a fixing mechanism for an electrical control device. Background Technology
[0002] Electrical control devices are devices or systems used to control and manage the operation of electrical equipment. These devices adjust the working state of electrical appliances by receiving, processing and executing control signals, thereby realizing functions such as switching, regulation, protection and monitoring. They are widely used in many fields such as homes, industry and commerce.
[0003] In practical use, electrical control devices require a fixing mechanism to be installed in the control cabinet to ensure stable operation. Commonly used fixing mechanisms for electrical control devices utilize DIN rails for detachable installation. However, disassembly still requires external assistance, such as using a screwdriver to forcefully press down on the mounting head, making disassembly quite laborious. Furthermore, when an electrical control device spontaneously combusts, the mounting part may deform and stick to the DIN rail, further complicating disassembly. Therefore, we propose a fixing mechanism for electrical control devices to solve these problems. Utility Model Content
[0004] The purpose of this utility model is to provide a fixing mechanism for an electrical control device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixing mechanism for an electrical control device, comprising an electrical control device body and a DIN rail. A fixing component is provided on the outer side of the electrical control device body. The fixing component includes a side guard frame. A mounting bracket is fixedly installed at the rear end of the side guard frame, and the mounting bracket is detachably snapped onto the DIN rail. Protective frames are fixedly installed at the top and bottom ends of the side guard frame. A connecting frame is fixedly installed at the rear ends of the two protective frames, and the connecting frame is fixedly snapped onto the rear of the side guard frame. The electrical control device body is movably snapped between the side guard frame and the two protective frames. A wire-passing groove is provided on the side of the protective frame near the wiring portion of the electrical control device body. Multiple evenly distributed spray grooves are provided on the inner wall of the wire-passing groove. An internal threaded tube is fixedly snapped onto the outer end of the side guard frame. A fastening bolt is threaded into the middle of the internal threaded tube. The end of the fastening bolt extends into the side guard frame and is fixedly fitted with a protective pad. The protective pad contacts the outer wall of the electrical control device body.
[0006] Preferably, the protective frame is a hollow structure.
[0007] Preferably, the two protective frames and the connecting frame are interconnected.
[0008] Preferably, the fixing mechanism further includes a liquid guide main pipe, on the side of the liquid guide main pipe near the electrical control device body, a liquid guide branch pipe is integrally formed, the end of the liquid guide branch pipe is provided with a threaded head, and a sealing rotating component is fixedly clamped at the bottom end of the threaded head, and the sealing rotating component is fixedly installed at the end of the liquid guide branch pipe.
[0009] Preferably, a connecting pipe is fixedly installed at the middle of the bottom end of the protective frame at the bottom position, a pump is fixedly installed at the bottom end of the connecting pipe, an installation sleeve is fixedly installed at the input port of the pump, and the threaded head is threaded onto the installation sleeve.
[0010] Preferably, a positioning ring is fixedly installed in the middle of the inner wall of the mounting sleeve, and a sealing ring is provided at the top of the threaded head, with the sealing ring and the lower surface of the positioning ring in contact.
[0011] Preferably, the outer wall of the side frame is provided with a plurality of evenly distributed heat dissipation fin slots.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. By setting up fasteners, the electrical control device body is protected and fixed, making it easy to remove the electrical control device body from the fasteners by rotating the fastening bolts in the opposite direction for quick disassembly and maintenance.
[0014] 2. By setting up fixing components and using a liquid guide pipe, when a wiring part of one of the electrical control devices spontaneously combusts, the fire extinguishing agent can be evenly sprayed onto the wiring part to extinguish the fire in a localized location, preventing damage to other parts of the control cabinet. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the structural connection after the present invention is disassembled.
[0018] Figure 3 This is a schematic diagram of the structure of the fixing component and the liquid guiding main pipe in this utility model.
[0019] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.
[0020] Figure 5 This is a schematic diagram showing the partial structure of the fixing component and the structural connection of the liquid guiding main pipe in this utility model.
[0021] Figure 6 This utility model Figure 5 Enlarged view of point B in the middle.
[0022] In the diagram: 1. Electrical control device body; 2. DIN rail; 3. Fixture; 4. Main liquid guide pipe; 41. Branch liquid guide pipe; 42. Threaded head; 421. Sealing rotating part; 422. Sealing ring; 31. Side guard frame; 32. Mounting bracket; 33. Protective frame; 331. Connecting pipe; 301. Wiring trough; 302. Spray trough; 303. Heat dissipation fin trough; 34. Connecting frame; 35. Pump; 36. Mounting sleeve; 361. Positioning ring; 37. Internal threaded tube; 371. Fastening bolt; 372. Protective pad. Detailed Implementation
[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Example: Figure 1-6 As shown, this utility model provides a fixing mechanism for an electrical control device, including an electrical control device body 1 and a DIN rail 2. A fixing member 3 is provided on the outer side of the electrical control device body 1. The fixing member 3 includes a side guard frame 31. A mounting bracket 32 is fixedly installed at the rear end of the side guard frame 31. The mounting bracket 32 is detachably snapped onto the DIN rail 2 for detachable installation and fixing between the fixing member 3 and the DIN rail 2. Protective frames 33 are fixedly installed at the top and bottom ends of the side guard frame 31. A connecting frame 34 is fixedly installed at the rear end of the two protective frames 33. The connecting frame 34 is fixedly snapped onto the rear part of the side guard frame 31. The protective frames 33 are hollow structures. The two protective frames 33 and the connecting frame 34 are interconnected.
[0025] The electrical control device body 1 is movably snapped between the side guard frame 31 and the two guard frames 33 for snap-fit installation. The guard frame 33 has a wire-passing groove 301 on the side near the wiring part of the electrical control device body 1. The wire-passing groove 301 facilitates the external wiring to be passed through the wire-passing groove 301 and installed at the wiring part of the electrical control device body 1. The inner wall of the wire-passing groove 301 has a plurality of evenly distributed spray grooves 302. The outer end of the side guard frame 31 is fixedly snapped with an internal threaded tube 37. The middle thread of the internal threaded tube 37 is threaded with a fastening bolt 371. The end of the fastening bolt 371 extends into the side guard frame 31 and is fixedly installed with a protective pad 372. The protective pad 372 contacts the outer wall of the electrical control device body 1. By rotating the fastening bolt 371, the protective pad 372 contacts the outer wall of the electrical control device body 1, thereby fixing the electrical control device body 1.
[0026] The fixing mechanism also includes a liquid guide main pipe 4. A liquid guide branch pipe 41 is integrally formed on the side of the liquid guide main pipe 4 near the electrical control device body 1. The end of the liquid guide branch pipe 41 is provided with a threaded head 42. A sealing rotating component 421 is fixedly clamped at the bottom end of the threaded head 42. The sealing rotating component 421 is fixedly installed at the end of the liquid guide branch pipe 41 to perform sealing installation between the threaded head 42 and the end of the liquid guide branch pipe 41.
[0027] A connecting pipe 331 is fixedly installed at the bottom center of the bottom protective frame 33. A pump 35 is fixedly installed at the bottom of the connecting pipe 331. An installation sleeve 36 is fixedly installed at the inlet of the pump 35. A threaded head 42 is threaded onto the installation sleeve 36. A positioning ring 361 is fixedly installed at the center of the inner wall of the installation sleeve 36. A sealing ring 422 is provided at the top of the threaded head 42. The sealing ring 422 and the lower surface of the positioning ring 361 are in contact. By rotating the threaded head 42, the threaded head 42 is threaded onto the installation sleeve 36, so that the sealing ring 422 and the lower surface of the positioning ring 361 are in contact, thus achieving a sealing installation between the threaded head 42 and the installation sleeve 36.
[0028] The outer wall of the side shield frame 31 is provided with a plurality of evenly distributed heat dissipation fin grooves 303. By providing a plurality of heat dissipation fin grooves 303, the heat dissipation of the side shield frame 31 is facilitated, thereby facilitating the heat dissipation of the electrical control device body 1.
[0029] Working principle: When in use, the electrical control device body 1 is movably snapped between the side guard frame 31 and the two guard frames 33 to install the electrical control device body 1, and the fastening bolt 371 is rotated to make the protective pad 372 contact the outer side wall of the electrical control device body 1 to fix the electrical control device body 1.
[0030] Subsequently, the mounting bracket 32 is detachably snapped onto the DIN rail 2, and the fastener 3 and the DIN rail 2 are detachably installed and fixed, thereby fixing the electrical control device body 1; by opening the wire groove 301, it is convenient to pass the external wire through the wire groove 301 and install it at the wiring part of the electrical control device body 1.
[0031] Subsequently, the threaded head 42 is rotated to thread it onto the mounting sleeve 36, so that the lower surfaces of the sealing ring 422 and the positioning ring 361 come into contact, thus sealing the threaded head 42 and the mounting sleeve 36. The end of the liquid guide pipe 4 is then connected to the output port of the fire extinguishing agent output system. When spontaneous combustion occurs at the wiring part of one of the electrical control device bodies 1, the fire extinguishing agent output system and the pump 35 at the location of the electrical control device body 1 are immediately activated. The fire extinguishing agent is introduced into the protective frame 33 through the liquid guide pipe 4, the corresponding liquid guide branch pipe 41, the threaded head 42, the mounting sleeve 36, and the connecting pipe 331, and is evenly sprayed out through multiple spray slots 302, evenly spraying the wiring part to extinguish the fire in a targeted manner and prevent damage to other parts of the control cabinet.
[0032] When it is necessary to disassemble and repair the electrical control device body 1, simply rotate the fastening bolt 371 in the opposite direction to remove the electrical control device body 1 from the fixing part 3 for quick disassembly.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fixing mechanism for an electrical control device, comprising an electrical control device body (1) and a DIN rail (2), characterized in that: The electrical control device body (1) is provided with a fixing member (3) on its outer side. The fixing member (3) includes a side guard frame (31). A mounting bracket (32) is fixedly installed at the rear end of the side guard frame (31). The mounting bracket (32) is detachably snapped onto the DIN rail (2). Protective frames (33) are fixedly installed at the top and bottom ends of the side guard frame (31). A connecting frame (34) is fixedly installed at the rear end of the two protective frames (33). The connecting frame (34) is fixedly snapped onto the rear of the side guard frame (31). The electrical control device body (1) is movably snapped onto the side guard frame (31) and the two... Between the protective frames (33), a wire-passing groove (301) is provided on the side of the protective frame (33) near the wiring part of the electrical control device body (1). A plurality of spray grooves (302) are evenly distributed on the inner wall of the wire-passing groove (301). An inner threaded tube (37) is fixedly clamped on the outer end of the side protective frame (31). A fastening bolt (371) is threaded into the middle of the inner threaded tube (37). The end of the fastening bolt (371) extends into the side protective frame (31) and a protective pad (372) is fixedly installed. The protective pad (372) is in contact with the outer wall of the electrical control device body (1).
2. The fixing mechanism of an electrical control device according to claim 1, characterized in that: The protective frame (33) is designed as a hollow structure.
3. The fixing mechanism of an electrical control device according to claim 1, characterized in that: The two protective frames (33) and the connecting frame (34) are interconnected.
4. The fixing mechanism of an electrical control device according to claim 1, characterized in that: The fixing mechanism also includes a liquid guide main pipe (4), and a liquid guide branch pipe (41) is integrally formed on the side of the liquid guide main pipe (4) near the electrical control device body (1). The end of the liquid guide branch pipe (41) is provided with a threaded head (42), and a sealing rotating part (421) is fixedly clamped at the bottom of the threaded head (42). The sealing rotating part (421) is fixedly installed at the end of the liquid guide branch pipe (41).
5. The fixing mechanism of an electrical control device according to claim 4, characterized in that: A connecting pipe (331) is fixedly installed at the bottom center of the protective frame (33) at the bottom position. A pump (35) is fixedly installed at the bottom end of the connecting pipe (331). An installation sleeve (36) is fixedly installed at the input port of the pump (35). The threaded head (42) is threaded onto the installation sleeve (36).
6. The fixing mechanism of an electrical control device according to claim 5, characterized in that: A positioning ring (361) is fixedly installed in the middle of the inner wall of the mounting sleeve (36), and a sealing ring (422) is provided at the top of the threaded head (42). The sealing ring (422) and the lower surface of the positioning ring (361) are in contact.
7. The fixing mechanism of an electrical control device according to claim 1, characterized in that: The outer wall of the side frame (31) is provided with a plurality of evenly distributed heat dissipation fin slots (303).