Explosion-proof motor shell installation structure

By using a limiting frame and curved protrusions, combined with the setting of limit blocks and internal slots, the problem of high installation difficulty of explosion-proof motor housings is solved, achieving convenient installation and improved stability.

CN224138799UActive Publication Date: 2026-04-17WUXI XINXIANGRONG METAL MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI XINXIANGRONG METAL MFG CO LTD
Filing Date
2025-04-03
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

During the installation of existing explosion-proof motor housings, it is necessary to align the holes of the front cover and the rear cover, making multiple adjustments. Furthermore, since the front cover and the rear cover are solid, the overall weight is relatively large, resulting in high installation difficulty.

Method used

The design employs a limiting frame and an arc-shaped protrusion. Multiple limiting frames support and limit the position of the cover plate, while the arc-shaped protrusion reduces the contact area, facilitating the rotation of the cover plate to adjust the position of the mounting hole. Combined with the limiting function of the limiting slider, hole installation can be achieved without support. At the same time, the setting of the limiting block and the internal groove ensures the positioning of the end sealing plate and the fixing of the nut.

Benefits of technology

It reduces installation difficulty, improves installation efficiency, and enhances the stability of explosion-proof motors and the ease of bolt fixing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an explosion-proof motor housing installation structure, and relates to the technical field of motors, the explosion-proof motor housing installation structure comprises an explosion-proof motor housing, two ends of the explosion-proof motor housing are fixedly connected with limiting racks, the interiors of the limiting racks are fixedly connected with arc-shaped raised lines, one side of the middle part of each limiting rack is provided with a chute, and the middle part of each limiting rack is provided with an arc-shaped raised line. The limiting frames and the arc-shaped protruding strips are arranged, a cover plate needing to be installed is borne and limited through the multiple limiting frames, the contact area is reduced through the arc-shaped protruding strips, the cover plate can be conveniently rotated, the position of an installation hole in the cover plate can be adjusted, hole installation is facilitated, the installation efficiency is improved, and the installation cost is reduced. And meanwhile, through the arrangement of the limiting sliding blocks, the cover plate can be limited, so that the cover plate does not need to be supported, only the cover plate needs to be rotated for hole alignment, the installation difficulty is reduced, meanwhile, the cover plate is limited through the design, and the stability of the explosion-proof motor in use is improved.
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Description

Technical Field

[0001] This utility model relates to the field of electric motor technology, and in particular to an explosion-proof electric motor housing mounting structure. Background Technology

[0002] Explosion-proof motors are a type of motor with explosion-proof properties. The measures taken include: enclosing the electrical equipment in a housing with a structure capable of withstanding the explosion pressure of the internal explosive mixture and preventing the internal explosion from propagating to the surrounding explosive mixture (flameproof type); ensuring that the motor's live parts cannot generate sparks, arcs, or dangerous temperatures sufficient to cause an explosion, or isolating live parts that might produce these phenomena from the explosive mixture so that they cannot come into contact with each other or reach a level that poses an explosive hazard (increased safety type, ventilated type, etc.).

[0003] In the existing technology, the housing of the explosion-proof motor is fixed by bolts. However, in the actual installation process, the holes of the front cover and the rear cover need to be aligned. This process requires multiple adjustments. Since both the front cover and the rear cover are solid, the overall weight is large, making the installation difficult. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the installation of the casing of the explosion-proof motor in the prior art is fixed by bolts. However, in the actual installation process, it is necessary to align the holes of the front cover and the rear cover. This process requires multiple adjustments. Moreover, the front cover and the rear cover are both solid, and the overall weight is large, making the installation difficult. Therefore, this utility model proposes an explosion-proof motor casing installation structure.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an explosion-proof motor housing mounting structure, comprising an explosion-proof motor housing, with limiting frames fixedly connected to both ends of the explosion-proof motor housing, an arc-shaped protrusion fixedly connected inside the limiting frame, a sliding groove formed on one side of the middle portion of the limiting frame, a limiting slider slidably connected inside the sliding groove, the lower end of the limiting slider being inclined away from the limiting frame, an end sealing plate installed on the outer side of the limiting frame, and a loading box fixedly connected to one side of the middle portion of the end sealing plate, the loading box containing... A spring is fixedly connected between the upper end of the part and the upper end of the limiting slider. Through the setting of the limiting frame and the arc-shaped protrusion, multiple limiting frames support and limit the cover plate to be installed. The arc-shaped protrusion reduces the contact area, making it easier to rotate the cover plate to adjust the position of the mounting hole in the cover plate for easy installation. At the same time, the limiting slider limits the cover plate, so there is no need to support the cover plate. You only need to rotate the cover plate to align with the hole, which reduces the installation difficulty. In addition, the design limits the cover plate and increases the stability of the explosion-proof motor during use.

[0006] Preferably, limit blocks are fixedly connected to both sides of the outer side of the limiting frame, and limit slots are opened on both sides of the end sealing plate, with the limit slots engaging with the limit blocks.

[0007] Preferably, connecting blocks are fixedly connected to both ends of the outer surface of the explosion-proof motor housing.

[0008] Preferably, a through groove is formed in the middle of one side of the connecting block.

[0009] Preferably, an inner groove is provided in the middle of the through groove.

[0010] Preferably, a rubber block is fixedly connected to one side of the inner groove.

[0011] Preferably, an inner slot is provided on the other side of the inner slot.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting up limiting frames and arc-shaped protrusions, multiple limiting frames support and limit the cover plate to be installed. The arc-shaped protrusions reduce the contact area, making it easier to rotate the cover plate to adjust the position of the mounting holes in the cover plate for easy installation. At the same time, by setting up limiting sliders, the cover plate can be limited. Thus, there is no need to support the cover plate; simply rotate the cover plate to align with the holes, reducing the installation difficulty. In addition, this design limits the cover plate, increasing the stability of the explosion-proof motor during use.

[0014] 2. In this utility model, the setting of the limiting block facilitates the positioning of the end sealing plate and limits the end sealing plate to prevent movement after installation between the end sealing plate and the limiting frame, thereby increasing the stability of use. The setting of the inner groove is used to place the nut. When installing the cover plate, the nut can be inserted into the inner groove, and the rubber block can be squeezed and deformed. Through the squeezing of the rubber block, the nut can be squeezed and locked into the inner groove, thereby limiting the nut and facilitating the installation and fixing of bolts. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural diagram of an explosion-proof motor housing mounting structure;

[0016] Figure 2 This utility model proposes an explosion-proof motor housing mounting structure. Figure 1 Enlarged structural diagram of region A in the middle;

[0017] Figure 3 An exploded view of an explosion-proof motor housing mounting structure is provided for this utility model;

[0018] Figure 4 This utility model proposes an explosion-proof motor housing mounting structure. Figure 3 Enlarged structural diagram of region B in the middle;

[0019] Figure 5 This utility model presents a three-dimensional structural diagram of the end sealing plate of the explosion-proof motor housing mounting structure.

[0020] Legend: 1. Explosion-proof motor housing; 2. Limiting frame; 3. Connecting block; 4. End sealing plate; 5. Arc-shaped protrusion; 6. Through groove; 7. Internal groove; 8. Rubber block; 9. Internal slot; 10. Spring; 11. Limiting slider; 12. Limiting block; 13. Slide groove; 14. Limiting slot; 15. Loading box. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 - Figure 5 As shown, this utility model provides an explosion-proof motor housing mounting structure, including an explosion-proof motor housing 1. Both ends of the explosion-proof motor housing 1 are fixedly connected to a limiting frame 2. An arc-shaped protrusion 5 is fixedly connected inside the limiting frame 2. A sliding groove 13 is opened on one side of the middle part of the limiting frame 2. A limiting slider 11 is slidably connected inside the sliding groove 13. The lower end of the limiting slider 11 away from the limiting frame 2 is designed with an inclination. An end sealing plate 4 is installed on the outer side of the limiting frame 2. A loading box 15 is fixedly connected to one side of the middle part of the end sealing plate 4. A spring 10 is fixedly connected between the upper end of the loading box 15 and the upper end of the limiting slider 11.

[0024] The specific settings and functions of this embodiment are described in detail below. By setting up the limiting frame 2 and the arc-shaped protrusion 5, multiple limiting frames 2 support and limit the cover plate to be installed. The arc-shaped protrusion 5 reduces the contact area, making it easier to rotate the cover plate to adjust the position of the mounting hole in the cover plate for easy installation. At the same time, the limiting slider 11 limits the cover plate, so there is no need to support the cover plate. You only need to rotate the cover plate to align with the hole, which reduces the installation difficulty. At the same time, this design limits the cover plate and increases the stability of the explosion-proof motor during use.

[0025] Example 2: Figure 1 - Figure 4 As shown, limit blocks 12 are fixedly connected to both sides of the outer side of the limiting frame 2, and limit slots 14 are opened on both sides of the end sealing plate 4. The limit slots 14 are engaged with the limit blocks 12. Connecting blocks 3 are fixedly connected to both ends of the outer surface of the explosion-proof motor housing 1. A through groove 6 is opened through the middle of one side of the connecting block 3. An inner groove 7 is opened in the middle of the through groove 6. A rubber block 8 is fixedly connected to one side of the inner groove 7. An inner slot 9 is opened on the other side of the inner groove 7.

[0026] The overall effect of this embodiment is that the positioning of the end sealing plate 4 is facilitated by the setting of the limiting block 12, and the end sealing plate 4 is limited to prevent movement after installation between the end sealing plate 4 and the limiting frame 2, thereby increasing the stability of use. The inner groove 7 is used to place the nut. When the cover plate is installed, the nut can be inserted into the inner groove 7, and the rubber block 8 is squeezed and deformed. Through the squeezing of the rubber block 8, the nut can be squeezed and stuck into the inner groove 9, thereby limiting the nut and facilitating the installation and fixing of the bolt.

[0027] The method of use and working principle of this device: When it is necessary to install the cover plate, press the cover plate to push the limiting slider 11 to move until the cover plate is inserted into the area between the limiting slider 11 and the limiting frame 2. Then rotate the cover plate until the hole is aligned with the through groove 6. Then insert the nut into the inner groove 7 until the inner groove 7 is inserted into the inner slot 9. Finally, use bolts to fix it.

[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. An explosion-proof motor housing mounting structure comprising an explosion-proof motor housing (1), characterized by: Both ends of the explosion-proof motor housing (1) are fixedly connected to a limiting frame (2). An arc-shaped protrusion (5) is fixedly connected inside the limiting frame (2). A sliding groove (13) is opened on one side of the middle part of the limiting frame (2). A limiting slider (11) is slidably connected inside the sliding groove (13). The lower end of the limiting slider (11) away from the limiting frame (2) is inclined. An end sealing plate (4) is installed on the outside of the limiting frame (2). A loading box (15) is fixedly connected on one side of the middle part of the end sealing plate (4). A spring (10) is fixedly connected between the upper end of the loading box (15) and the upper end of the limiting slider (11).

2. A housing mounting structure for an explosion-proof electric motor according to claim 1, characterized in that: Limiting blocks (12) are fixedly connected to both sides of the outer side of the limiting frame (2), and limiting slots (14) are opened on both sides of the end sealing plate (4), and the limiting slots (14) are engaged with the limiting blocks (12).

3. A housing mounting structure for an explosion-proof electric motor according to claim 1, characterized in that: Both ends of the outer surface of the explosion-proof motor housing (1) are fixedly connected to connecting blocks (3).

4. A housing mounting structure for an explosion-proof electric motor according to claim 3, characterized in that: A through groove (6) is provided in the middle of one side of the connecting block (3).

5. A housing mounting structure for an explosion-proof electric motor according to claim 4, characterized in that: An inner groove (7) is provided in the middle of the through groove (6).

6. A housing mounting structure for an explosion-proof electric motor according to claim 5, characterized in that: A rubber block (8) is fixedly connected to one side of the inner groove (7).

7. A housing mounting structure for an explosion-proof electric motor according to claim 5, wherein: An inner slot (9) is provided on the other side of the inner slot (7).