An explosion-proof electric control box mounting structure and a grain cooling unit comprising the same
By designing an explosion-proof electrical control box installation structure, and utilizing mounting boxes, covers, and explosion-proof flexible connecting pipes, the problem of inconvenient installation of explosion-proof electrical control boxes on grain cooling units was solved, achieving convenient and sealed installation of the electrical control box and ensuring installation efficiency and safety.
Patent Information
- Application Number
- CN202521094986.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-05
- Estimated Expiration
- 2035-05-30
Smart Images

Figure CN224329715U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of explosion-proof electrical control box installation technology, and in particular to an explosion-proof electrical control box installation structure and a grain cooling unit containing the same. Background Technology
[0002] Dust generated during grain processing and storage (such as particulate matter from wheat and corn) poses an explosion risk when it reaches a certain concentration. Grain coolers typically integrate a refrigeration system (compressor, evaporator), an air supply system (fan, plenum chamber), and an intelligent control system (PLC, sensors). During operation, these components may generate localized high temperatures or electrical sparks due to temperature changes or mechanical friction. Explosion-proof electrical control boxes, through their sealed structure design and explosion-proof components, can prevent the generation of electrical sparks and avoid igniting the dust mixture. However, installing explosion-proof electrical control boxes on the indoor units of grain cooler units is relatively inconvenient. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides an explosion-proof electrical control box installation structure and a grain cooling unit containing the structure, which solves the problem of inconvenience in installing the explosion-proof electrical control box on the grain cooling unit in existing technologies.
[0004] According to an embodiment of this utility model, an explosion-proof electrical control box mounting structure includes: a mounting box, a cover plate, and an explosion-proof flexible connecting pipe. The mounting box has an opening on one side. One end of the cover plate is hinged to the side wall of the mounting box via a mounting component. The other end of the cover plate is locked to the mounting box via a locking component. The cover plate is used to open and close the opening. The side wall of the mounting box is provided with an inlet hole that connects the outside to the inside. The mounting box is provided with a fixing component for fixing the main body of the explosion-proof electrical control box. The explosion-proof flexible connecting pipe is connected between the inlet hole and the main body of the explosion-proof electrical control box.
[0005] Compared with the prior art, this utility model has the following advantages: It is equipped with an installation box, which is fixedly connected to the grain cooling unit body. An opening is provided on one side of the installation box to facilitate the installation of the explosion-proof electrical control box body inside the installation box through the fixing component. The inlet hole is sealed to the inside of the explosion-proof electrical control box body by setting an explosion-proof flexible connecting pipe. At the same time, one end of the cover plate is hinged to the installation box, and the other end of the cover plate is detachably connected to the installation box through the locking component, so as to realize the convenient operation of opening and closing the installation box.
[0006] Furthermore, the installation box is equipped with a flexible connecting pipe that connects the explosion-proof electrical control box body to the outside of the installation box.
[0007] Furthermore, the mounting component includes a rotating hinge, one end of which is fixed to the side wall of the mounting box, and the other end of which is fixed to the side wall of the cover plate.
[0008] Furthermore, the locking assembly includes a door lock and a locking lever. The door lock is located on the side of the cover plate away from the mounting box, and the locking lever is located inside the mounting box. The door lock and the locking lever cooperate to lock the free end of the cover plate to the mounting box.
[0009] Furthermore, the fixing components include: a fixing base and a fixing screw. The fixing base is used to fix to the side wall of the control box body, and the fixing screw is fixed inside the mounting box. The fixing screw is threadedly connected to both the mounting box and the fixing base.
[0010] A grain cooling unit includes: a grain cooling unit body with an installation port on its side wall, and the aforementioned explosion-proof electrical control box mounting structure, wherein the mounting box is fixed inside the installation port.
[0011] Furthermore, the side wall of the grain cooling unit body is provided with an inlet that communicates with the inlet hole. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the installation structure of the explosion-proof electrical control box of this utility model.
[0013] Figure 2 This is a schematic diagram of a grain cooling unit.
[0014] Figure 3 This is an exploded view of a grain cooling unit.
[0015] Figure 4 This is a schematic diagram of the mounting structure of the mounting box.
[0016] Figure 5 This is a schematic diagram of the installation structure of an explosion-proof electrical control box.
[0017] In the above attached diagram: 1. Mounting box; 2. Cover plate; 3. Cable inlet; 4. Explosion-proof flexible connecting pipe; 5. Explosion-proof electrical control box body; 6. Flexible connecting pipe; 7. Rotating hinge; 8. Door lock; 9. Lock lever; 10. Fixing base; 11. Fixing screw; 12. Grain cooling unit body; 13. Mounting port; 14. Cable inlet. Detailed Implementation
[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0019] like Figure 1-5As shown in the figure, this utility model embodiment proposes an explosion-proof electrical control box installation structure, including: a mounting box 1, a cover plate 2, and an explosion-proof flexible connecting pipe 4. The mounting box 1 has an opening on one side. One end of the cover plate 2 is hinged to the side wall of the mounting box 1 through a mounting component. The other end of the cover plate 2 is locked to the mounting box 1 through a locking component. The cover plate 2 is used to open and close the opening. The side wall of the mounting box 1 is provided with an inlet hole 3 that connects the outside to the inside. The mounting box 1 is provided with a fixing component for fixing the main body of the explosion-proof electrical control box. The explosion-proof flexible connecting pipe 4 is connected between the inlet hole 3 and the main body of the explosion-proof electrical control box 5.
[0020] An installation box 1 is provided, which is fixedly connected to the grain cooling unit body 12. An opening is provided on one side of the installation box 1 to facilitate the installation of the explosion-proof electrical control box body 5 inside the installation box 1 through a fixing component. An explosion-proof flexible connecting pipe 4 is used to seal the inlet hole 3 to the inside of the explosion-proof electrical control box body 5. At the same time, one end of the cover plate 2 is hinged to the installation box 1, and the other end of the cover plate 2 is detachably connected to the installation box 1 through a locking component, so as to realize the convenient operation of opening and closing the installation box 1.
[0021] As one embodiment, a grain cooling unit includes: a grain cooling unit body 12, with a mounting opening 13 on its side wall; and the aforementioned explosion-proof electrical control box mounting structure. The mounting box 1 is fixed within the mounting opening 13. Specifically, the mounting box 1 can be fixed to the mounting opening 13 by welding, achieving a sealed connection between the mounting box 1 and the mounting opening 13. Further, as... Figure 1 as well as Figure 5 As shown, the mounting box 1 is equipped with a flexible conduit 6 that connects the explosion-proof electrical control box body 5 to the outside of the mounting box 1. By setting the flexible conduit 6, the interior of the explosion-proof electrical control box body 5 is connected to the grain cooling unit body 12, which facilitates the connection of the motor wires, sensor wires, etc. of the grain cooling unit body 12 to the explosion-proof electrical control box body 5 through the flexible conduit 6. After the cables are connected, an airtight connection is achieved by filling with sealant.
[0022] Furthermore, a cable inlet 14 communicating with the cable inlet hole 3 is provided on the side wall of the grain cooling unit body 12. The user cable is inserted into the cable inlet 14 on the back of the grain cooling unit body 12 and passes through the explosion-proof flexible connecting pipe 4 into the explosion-proof electrical control box body 5 to achieve a sealed connection. At the same time, a sealing strip is provided at the connection between the mounting box 1 and the cover plate 2.
[0023] like Figure 2 As shown, the mounting component includes a rotating hinge 7, one end of which is fixed to the side wall of the mounting box 1, and the other end is fixed to the side wall of the cover plate 2.
[0024] like Figure 1 as well as Figure 4As shown, the locking assembly includes a door lock 8 and a locking latch 9. The door lock 8 is located on the side of the cover plate 2 facing away from the mounting box 1, and the locking latch 9 is located inside the mounting box 1. The door lock 8 and the locking latch 9 cooperate to lock the free end of the cover plate 2 to the mounting box 1. Specifically, the door lock 8 can be of model MS888-2 / MS888-3 or BN-301, etc., as long as it can perform the locking and unlocking functions between the cover plate 2 and the mounting box 1.
[0025] Furthermore, such as Figure 1 As shown, the fixing assembly includes a fixing base 10 and a fixing screw 11. The fixing base 10 is used to fix the fixing to the side wall of the main body of the control box. The fixing screw 11 is fixed inside the mounting box 1. The fixing screw 11 is threadedly connected to both the mounting box 1 and the fixing base 10. The fixing base 10 is fixed to the inner wall of the mounting box 1 by the fixing screw 11, thereby realizing the fixed installation of the mounting box 1. Specifically, the fixing base 10 can be fixedly connected to the mounting box 1 by welding or other methods.
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An explosion-proof electrical control box mounting structure, characterized in that, include: The installation box (1), cover plate (2) and explosion-proof flexible connecting pipe (4) are provided. The installation box (1) has an opening on one side. One end of the cover plate (2) is hinged to the side wall of the installation box (1) by a mounting component. The other end of the cover plate (2) is locked to the installation box (1) by a locking component. The cover plate (2) is used to open and close the opening. The side wall of the installation box (1) is provided with an inlet hole (3) that connects the outside to the inside. The installation box (1) is provided with a fixing component for fixing the main body of the control box. The explosion-proof flexible connecting pipe (4) is connected between the inlet hole (3) and the main body of the explosion-proof control box (5).
2. The explosion-proof electrical control box mounting structure as described in claim 1, characterized in that, The mounting box (1) is equipped with a flexible connecting pipe (6) that connects the explosion-proof electrical control box body (5) to the outside of the mounting box (1).
3. The explosion-proof electrical control box mounting structure as described in claim 1, characterized in that, The mounting component includes a rotating hinge (7), one end of which is fixed to the side wall of the mounting box (1) and the other end of which is fixed to the side wall of the cover plate (2).
4. The explosion-proof electrical control box mounting structure as described in claim 1, characterized in that, The locking assembly includes a door lock (8) and a lock lever (9). The door lock (8) is located on the side of the cover plate (2) away from the mounting box (1), and the lock lever (9) is located inside the mounting box (1). The door lock (8) and the lock lever (9) cooperate to lock the free end of the cover plate (2) to the mounting box (1).
5. The explosion-proof electrical control box mounting structure as described in claim 1, characterized in that, The fixing components include: a fixing seat (10) and a fixing screw (11). The fixing seat (10) is used to fix to the side wall of the main body of the control box. The fixing screw (11) is fixed inside the mounting box (1). The fixing screw (11) is threadedly connected to the mounting box (1) and the fixing seat (10).
6. A grain cooling unit, comprising: The grain cooling unit body (12) has an installation port (13) on its side wall, characterized in that it further includes an explosion-proof electrical control box installation structure as described in any one of claims 1-5, wherein the installation box (1) is fixed in the installation port (13).
7. A grain cooling unit as described in claim 6, characterized in that, The grain cooling unit body (12) has an inlet (14) on its side wall that communicates with the inlet hole (3).