A fire pump motor junction box installation structure
By designing a rotatable raised housing and rotating bearing seat structure, combined with insulating sleeves, cable chains, and partition plates, the problem of wiring adjustment and separation in the junction box of fire pump motors was solved, realizing multi-directional adjustment and protection of the wiring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI PROVINCE SUIXI COUNTY HOSPITAL
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-30
AI Technical Summary
The existing fire pump motor junction box has a fixed outlet direction that cannot be adjusted, resulting in excessive bending and damage to the wiring; the internal space is limited, causing the wiring to become tangled and twisted, making it difficult to separate and manage the wiring.
The design incorporates a rotatable raised housing and rotating bearing seat structure, combined with insulating sleeves, cable chains, and partition plates, to achieve multi-directional adjustment and categorized separation of the wiring. The wiring is guided by guide plates, expanding the internal space.
It enables multi-directional adjustment and classification of the lines, reduces the twisting and turning of the lines in the junction box, protects the line life, and meets the installation location requirements.
Smart Images
Figure CN224438676U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of fire pump motor components, and more specifically, to a fire pump motor junction box installation structure. Background Technology
[0002] Fire pump motors are common drive devices, and the motor junction box is one of the components of a fire pump motor. Its main function is to protect the power supply and wiring ports of the motor. Currently, motor junction boxes generally include a box body and a cover. The box body and the motor casing are usually set as separate or integrated. The cover is generally fixed to the box body by screws at the four corners.
[0003] In actual use, the above-mentioned motor junction box has the following problems: First, its outlet direction is fixed. When the wiring route needs to be changed according to installation requirements, the direction cannot be adjusted, resulting in excessive bending and damage to the external wiring. Second, the internal space of the existing motor junction box is limited. When there are many wires, the work of separating and organizing the wires is limited, and many wires will be tangled and twisted inside the motor junction box. Over time, this will cause damage to the wiring. Utility Model Content
[0004] The purpose of this utility model is to provide a fire pump motor junction box installation structure. This motor junction box installation structure can perform multi-directional adjustment of the fire pump's wiring in a planar circumferential area, and can also perform separation and wiring management of multiple bundles of wires inside the junction box, thereby protecting the service life of the wiring as a whole.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A fire pump motor junction box installation structure includes a fire pump motor, a base plate with mounting holes below the fire pump motor, and an integral box body above the fire pump motor. The box body is connected to a cover on all four sides by screws. A cylindrical raised housing is embedded in the middle of the upper surface of the cover. Several insulating sleeves extend from the inside of the raised housing, and several motor circuits pass through the inside of each insulating sleeve.
[0007] As a further optimization of this solution, the raised housing is hollow inside and its lower end is fixed in the rotating part above the rotating bearing seat. The non-rotating part below the rotating bearing seat is embedded in the middle position of the upper surface of the box cover, and a locking bolt is screwed inward on the outer side of the non-rotating part below the rotating bearing seat. The locking bolt is tightened inward to limit the position of the rotating part inside.
[0008] As a further optimization of this solution, the motor wiring is led out from the wiring channel inside the box and wrapped with insulating sleeves in categories. The insulating sleeves pass upward through the interior of several cable chains that are connected end to end. The cable chains are connected by rotating and fixed cover plates at the top and bottom. Several partition plates are installed between the rotating and fixed cover plates, and the partition plates separate the insulating sleeves in categories.
[0009] As a further optimization of this solution, the raised housing has a through groove on its side, and a sealing sleeve with several elastic outlets is embedded in the through groove. An insulating sleeve extends out of the elastic outlet of the sealing sleeve.
[0010] As a further optimization of this solution, the outer side of the uppermost cable chain among the several interconnected cable chains is connected by screws to a concave guide plate, and the two ends of the uppermost cable chain pass through the through groove on the side of the raised housing for fixation. The guide plate has several through holes on its surface, and an insulating sleeve passes through the inside of the through holes.
[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows:
[0012] This invention utilizes a rotatable, raised housing structure to expand the internal space of the existing motor junction box and allow for upward routing of wiring. Multiple insulating sleeves are used to categorize and wrap various bundles of wiring, and a combination of cable chains and partitions facilitates wiring management. The cable chains and guide plates guide and protect the wiring within the insulating sleeves, reducing the risk of wiring tangling or twisting inside the motor junction box. Furthermore, the rotating bearing housing structure connected to the raised housing allows for turning of the wiring outlet, enabling multi-directional adjustment of the fire pump wiring within a planar circumferential area to meet installation requirements and minimize damage from excessive bending of external wiring. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the junction box installation structure of this utility model (with part of the box body, box cover and raised shell removed);
[0014] Figure 2 This is a schematic diagram of the lifting shell connection structure of this utility model (part of the box body, box cover and lifting shell are removed);
[0015] Figure 3 This is a schematic diagram of the internal structure of the cable chain of this utility model;
[0016] In the diagram: 1. Fire pump motor; 2. Base plate; 3. Box body; 4. Elevated housing; 5. Insulating sleeve; 6. Wiring; 7. Non-rotating part; 8. Rotating part; 9. Locking bolt; 10. Box cover; 11. Sealing sleeve; 12. Cable tray; 13. Cable chain; 14. Rotating cover plate; 15. Fixed cover plate; 16. Divider plate. Detailed Implementation
[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.
[0018] To address the issue that existing motor junction boxes have fixed cable outlet directions, making it impossible to adjust the direction when the wiring route needs to be changed according to installation requirements, resulting in excessive bending and damage to the wiring, and that the limited internal space of existing motor junction boxes makes it difficult to separate and manage the wiring when there are many wires, and many wires will become tangled and twisted inside the motor junction box, which will eventually cause damage to the wiring.
[0019] like Figure 1 As shown, this application includes a fire pump motor 1, a base plate 2 with mounting holes below the fire pump motor 1, an integrated box 3 above the fire pump motor 1, and a box cover 10 connected to the top of the box 3 by screws on all four sides. A cylindrical raised housing 4 is embedded in the middle of the upper surface of the box cover 10. Several insulating sleeves 5 extend out of the raised housing 4, and several motor circuits 6 pass through the inside of the several insulating sleeves 5.
[0020] like Figure 2 As shown, the interior of the raised housing 4 is hollow and the lower end is fixed in the rotating part 8 above the rotating bearing seat. The non-rotating part 7 below the rotating bearing seat is embedded in the middle position of the upper surface of the cover 10, and a locking bolt 9 is screwed inward on the outer side of the non-rotating part 7 below the rotating bearing seat. The locking bolt 9 is tightened inward to limit the position of the rotating part 8 inside.
[0021] The side of the raised housing 4 has a through groove and a sealing sleeve 11 with several elastic outlets is embedded in the through groove. An insulating sleeve 5 extends out of the elastic outlet of the sealing sleeve 11. The motor circuit 6 is led out from the wiring groove 12 inside the box and is wrapped in the insulating sleeve 5 in categories.
[0022] like Figure 3As shown, the insulating sleeve 5 passes upward through the interior of several interconnected cable chains 13. The cable chains 13 are connected by rotating cover plates 14 and fixed cover plates 15 at the top and bottom. Several partition plates 16 are clamped between the rotating cover plates 14 and the fixed cover plates 15, which separate the insulating sleeve 5 into categories. The outer side of the cable chain 13 at the top of the interconnected cable chains 13 is connected to a concave guide plate 12 by screws, and the two ends of the cable chain 13 at the top pass through the through grooves on the side of the raised housing 4 for fixation. Several through holes are opened on the surface of the guide plate 12, and the insulating sleeve 5 passes through the through holes.
[0023] Specifically, raising the housing 4 expands the internal space of the existing motor junction box and allows the wiring 6 to be led out upwards. Multiple bundles of wiring 6 are categorized and wrapped by several insulating sleeves 5. Combined with cable chains 13 and partition plates 16, this facilitates wiring management. The cable chain structure 13 and guide plates 12 guide and protect the wiring 6 within the insulating sleeves 5, reducing the problem of wiring 6 becoming tangled or twisted inside the motor junction box. Simultaneously, by rotating the bearing housing connected to the raised housing 4, the direction of the wiring outlet can be reversed, allowing for multi-directional adjustment of the fire pump's wiring 6 in the planar circumferential area to meet installation position requirements. Figure 1 In order to move the line forward, the direction of the insulating sleeve 5 can also be changed by rotating the rotating part 8, and the direction of components such as the drag chain 13 will follow the rotation, reducing excessive bending damage to the external line 6.
[0024] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0025] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A fire pump motor junction box mounting structure, comprising a fire pump motor, a base plate with mounting holes below the fire pump motor, and an integral box body above the fire pump motor, wherein a box cover is screwed to all four sides of the top of the box body, characterized in that: A cylindrical raised housing is embedded in the middle of the upper surface of the box cover. Several insulating sleeves extend from the inside of the raised housing, and several motor circuits pass through the inside of each of the insulating sleeves.
2. The fire pump motor junction box installation structure according to claim 1, characterized in that: The raised housing is hollow inside and its lower end is fixed in the rotating part above the rotating bearing seat. The non-rotating part below the rotating bearing seat is embedded in the middle position of the upper surface of the box cover, and a locking bolt is screwed inward on the outer side of the non-rotating part below the rotating bearing seat. The locking bolt is tightened inward to limit the position of the rotating part inside.
3. The fire pump motor junction box installation structure according to claim 2, characterized in that: The motor wiring is led out from the wiring channel inside the box and wrapped in insulating sleeves in categories. The insulating sleeves pass upward through the interior of several cable carriers that are connected end to end. The cable carriers are connected by rotating and fixed cover plates at the top and bottom. Several partition plates are clamped between the rotating and fixed cover plates, and the partition plates separate the insulating sleeves in categories.
4. The fire pump motor junction box installation structure according to claim 3, characterized in that: The raised housing has a through groove on its side, and a sealing sleeve with several elastic outlets is embedded in the through groove. An insulating sleeve extends out of the elastic outlet of the sealing sleeve.
5. The fire pump motor junction box installation structure according to claim 4, characterized in that: Among the several interconnected cable chains, the outer side of the uppermost cable chain is connected to a concave guide plate by screws, and the two ends of the uppermost cable chain pass through the through grooves on the side of the raised housing for fixation. The guide plate has several through holes on its surface, and an insulating sleeve passes through the inside of the through holes.