Horizontal explosion-proof motor

By introducing a locking block, inclined surface, and bayonet structure into the horizontal explosion-proof motor, the problem of disassembly and installation difficulties caused by multiple bolts fixing the protective cover was solved, realizing convenient installation and disassembly of the rear cover and improving maintenance efficiency.

CN224503054UActive Publication Date: 2026-07-14SHANGHAI SHANGLI EXPLOSION PROOF MOTOR GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI SHANGLI EXPLOSION PROOF MOTOR GRP CO LTD
Filing Date
2025-08-21
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing horizontal explosion-proof motor protective cover design uses multiple bolts for fixing, which increases the difficulty of disassembly and installation, lacks positioning function, and makes maintenance work inconvenient.

Method used

The device employs a locking block, inclined surface, and bayonet structure, combined with an outer sliding ring, an inner sliding top plate, and a pressure rod. The sliding frame drives the locking block into the bayonet to achieve limited installation and disassembly, simplifying the installation and disassembly process of the back cover.

Benefits of technology

It enables convenient installation and removal of the back cover, reducing maintenance difficulty and improving maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224503054U_ABST
    Figure CN224503054U_ABST
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Abstract

The utility model discloses a horizontal anti -explosion motor, include: anti -explosion motor body, rear cover, rear cover installation in the one side of anti -explosion motor body, outside fixed block, outside fixed block equidistance fixed connection in the outside of anti -explosion motor body, the utility model has the beneficial effect is: through having set the clamping block, the inclined plane and the socket, realized the clamping block to enter the socket, will fixed side box in the position of the inboard of installation port and limit processing, can install the rear cover in the one side of anti -explosion motor and limit, convenient installation and disassembly work, through having set the outside sliding ring, the inside sliding roof and the press bar, realized to the outside sliding ring pressure movement when drive inside sliding roof, press bar synchronous movement, through the press bar and adjust the inclined groove, sliding frame, thereby through sliding frame drive clamping block, inclined plane and move to fixed side box in, can dismantle between clamping block and socket, convenient between the disassembly of rear cover and anti -explosion motor.
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Description

Technical Field

[0001] This utility model relates to the field of explosion-proof motor technology, specifically a horizontal explosion-proof motor. Background Technology

[0002] Horizontal explosion-proof motors are electric motors specifically designed for safe use in flammable and explosive environments. Employing special design and manufacturing processes, they ensure no electrical sparks or high temperatures are generated during operation, thus preventing explosions in environments containing explosive gases or dust. Their robust outer casing effectively prevents internal sparks or high-temperature gases from leaking into the external environment. One end of the horizontal explosion-proof motor is equipped with a cooling fan. When the motor is running, the cooling fan rotates, accelerating airflow outside the motor and enhancing heat dissipation. To ensure personnel safety and prevent injury from the high-speed rotating fan blades, a protective cover is typically installed around the cooling fan. However, after a period of use, the protective cover needs to be removed for cleaning, maintenance, and replacement of the cooling fan blades. Existing protective cover designs often use multiple bolts for fixing, increasing the difficulty of disassembly and installation, and lacking positioning functionality, making maintenance inconvenient. Utility Model Content

[0003] The purpose of this utility model is to provide a horizontal explosion-proof motor to solve the problems mentioned in the background art, which are that most of the existing protective cover designs use multiple bolts for fixing, which increases the difficulty of disassembly and installation, and the installation does not have a positioning function, which brings inconvenience to maintenance work.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a horizontal explosion-proof motor, comprising:

[0005] Explosion-proof motor body;

[0006] The rear cover is installed on one side of the explosion-proof motor body;

[0007] An external fixing block is fixedly connected to the outside of the explosion-proof motor body at equal intervals. The external fixing block has an installation opening inside, and the installation opening has a locking slot inside.

[0008] An outer fixing ring is provided on the outside of the rear cover. Multiple fixing side boxes that mate with the mounting port are equidistantly arranged on one side of the outer fixing ring. A sliding frame is slidably connected inside the fixing side box. A locking block that mates with the bayonet is fixedly connected to one side of the sliding frame. The locking block is slidably connected to the fixing side box.

[0009] An inner sliding top plate is slidably connected inside the fixed side box. The inner sliding top plate is movably connected to the sliding frame and slidably connected to the outer fixed ring. Pressure rods are symmetrically fixedly connected to the outer side of the inner sliding top plate. Adjustment grooves that cooperate with the pressure rods are symmetrically opened inside the sliding frame. The pressure rods are slidably connected to the adjustment grooves.

[0010] As a preferred embodiment of this utility model: an outer sliding ring is slidably connected to the outer side of the rear cover, one side of the inner sliding top plate is fixedly connected to the outer sliding ring, a plurality of outer pressure plates are fixedly connected at equal intervals to the outer side of the outer sliding ring, and a plurality of fixing blocks that cooperate with the outer pressure plates are fixedly connected at equal intervals to the outer side of the outer fixing ring.

[0011] As a preferred embodiment of this utility model: a fixed side plate is symmetrically fixedly connected to one side of the outer sliding ring, and the fixed side plate is connected to the rear cover by a fixing bolt.

[0012] As a preferred embodiment of this utility model: a spring is provided inside the fixed side box, one end of the spring is fixedly connected to the fixed side box, and the other end of the spring is fixedly connected to the sliding frame.

[0013] As a preferred embodiment of this utility model: a limiting mounting cylinder that cooperates with the rear cover is fixedly connected to one side of the explosion-proof motor body, and a cooling fan is installed on one side of the explosion-proof motor body.

[0014] As a preferred embodiment of this utility model, the back cover has multiple heat dissipation holes inside.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting a locking block, an inclined surface, and a locking slot, enables the locking block to enter the locking slot and restrict the position of the fixed side box inside the installation opening. This allows the rear cover to be installed on one side of the explosion-proof motor, facilitating installation and disassembly. By setting an outer sliding ring, an inner sliding top plate, and a pressure rod, the outer sliding ring is pressed to drive the inner sliding top plate and pressure rod to move synchronously. The pressure rod pushes the adjusting groove and sliding frame, thereby driving the locking block and the inclined surface to move into the fixed side box through the sliding frame. This allows the locking block to be disassembled from the locking slot, facilitating the disassembly of the rear cover and the explosion-proof motor. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0017] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of the external structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the sliding frame of this utility model.

[0020] In the diagram: 1. Explosion-proof motor body; 2. Limiting mounting cylinder; 3. Rear cover; 4. External fixing block; 5. Mounting port; 6. Bayonet; 7. External fixing ring; 8. Inner sliding top plate; 9. External sliding ring; 10. External pressure plate; 11. Fixed side box; 12. Sliding frame; 13. Pressure rod; 14. Adjusting inclined groove; 15. Spring; 16. Fixed side plate; 17. Fixing bolt; 18. Clamping block; 19. Inclined surface; 20. Cooling fan; 21. Heat dissipation hole; 22. Fixed pressure block. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1 to 4 This utility model provides a technical solution: a horizontal explosion-proof motor, comprising: an explosion-proof motor body 1; a rear cover 3 installed on one side of the explosion-proof motor body 1; an outer fixing block 4 equidistantly welded to the outer side of the explosion-proof motor body 1, the outer fixing block 4 having an installation opening 5 inside, and a latch 6 inside the installation opening 5; an outer fixing ring 7 fixedly connected to the outer side of the rear cover 3, and a plurality of fixing side boxes 11 cooperating with the installation opening 5 being fixedly connected equidistantly to one side of the outer fixing ring 7, the fixing side box 11 having a sliding frame 12 slidably connected inside, the sliding frame 12 having a latch 18 cooperating with the latch 6 fixedly connected to one side of the sliding frame 12, the latch 18 being slidably connected to the fixing side box 11; an inner sliding top plate 8 slidably connected to the inside of the fixing side box 11, the inner sliding top plate 8 being movably connected to the sliding frame 12, and the inner sliding top plate 8 being slidably connected to the outer fixing ring 7. The sliding connection is provided. A pressure rod 13 is symmetrically fixedly connected to the outer side of the inner sliding top plate 8. An adjustment groove 14 that cooperates with the pressure rod 13 is symmetrically opened inside the sliding frame 12. The pressure rod 13 and the adjustment groove 14 are slidably connected. When the inner sliding top plate 8 moves, it drives the pressure rod 13 to move synchronously. The pressure rod 13 pushes against the adjustment groove 14 opened inside the sliding frame 12, completing the position movement of the sliding frame 12 and the locking block 18, separating the locking block 18 from the locking slot 6. The explosion-proof motor body 1 is mainly composed of: frame, stator core and stator winding, rotor core and rotor winding, shaft, bearing, explosion-proof shell, cooling fan 20, junction box and other auxiliary components. These components work together to ensure that the motor can operate safely and reliably in an explosive gas environment, while meeting the relevant explosion-proof standards and specifications.

[0023] Among them, an outer sliding ring 9 is slidably connected to the outer side of the rear cover 3, and one side of the inner sliding top plate 8 is fixedly connected to the outer sliding ring 9. Multiple outer pressure plates 10 are fixedly connected at equal intervals to the outer side of the outer sliding ring 9, and multiple fixed pressure blocks 22 that cooperate with the outer pressure plates 10 are fixedly connected at equal intervals to the outer side of the outer fixed ring 7. Through the cooperation of the outer pressure plates 10 and the fixed pressure blocks 22, the outer sliding ring 9 can be manually moved to one side of the outer fixed ring 7 to complete the movement of the inner sliding top plate 8 and the pressure rod 13.

[0024] Among them, a fixed side plate 16 is symmetrically fixedly connected to one side of the outer sliding ring 9. The fixed side plate 16 is connected to the rear cover 3 by a fixing bolt 17. The fixing bolt 17 restricts the position between the fixed side plate 16 and the rear cover 3, and prevents accidental contact of the outer sliding ring 9.

[0025] The fixed side box 11 is equipped with a spring 15 inside. One end of the spring 15 is fixedly connected to the fixed side box 11, and the other end of the spring 15 is fixedly connected to the sliding frame 12. The spring 15 restricts the sliding position of the sliding frame 12 inside the fixed side box 11.

[0026] The explosion-proof motor body 1 has a limiting mounting cylinder 2 that cooperates with the rear cover 3 fixedly connected to one side, and a cooling fan 20 is installed on one side of the explosion-proof motor body 1 to assist the explosion-proof motor body 1 in heat dissipation.

[0027] The back cover 3 has multiple heat dissipation holes 21 inside, through which heat is dissipated.

[0028] Specifically, during installation, manually unscrew the single fixing bolt 17 connecting the fixed side plate 16 and the rear cover 3. When installing the rear cover 3, the outer side of the limiting installation cylinder 2 mates with the rear cover 3, and the fixed side box 11 is positioned and installed with the installation port 5. The fixed side box 11 enters the installation port 5, and one side of the outer fixing block 4 presses against the inclined surface 19 on one side of the locking block 18. The locking block 18 is subjected to force and drives the sliding frame 12 and the adjusting inclined groove 14 to move. The adjusting inclined groove 14 drives the pressure rod 13, the inner sliding top plate 8, and the outer sliding ring 9 to move. The outer sliding ring 9 slides on the outside of the rear cover 3. When the sliding frame 12 moves, it presses the spring 15. When the locking block 18 reaches the position of the locking slot 6, the spring 15 will reset and drive the sliding frame 12 and the locking block 18 to reset. The locking block 18 enters the locking slot 6, and the locking block 18 and the locking slot 6 are fixed at this time. Install the rear cover 3 on one side of the explosion-proof motor body 1. After installation... The fixing bolts 17 are used to reposition the fixed side plate 16 and the rear cover 3 to prevent accidental contact with the outer sliding ring 9. When maintenance of the cooling fan 20 is required, the rear cover 3 is disassembled and the fixing bolts 17 connecting the fixed side plate 16 and the rear cover 3 are removed by hand. At this time, the outer sliding ring 9 can be pressed. The outer pressure plate 10 presses the outer sliding ring 9 and moves the inner sliding top plate 8. The outer pressure plate 10 and the fixing pressure block 22 are manually put into contact. The inner sliding top plate 8 drives the pressure rod 13 to move synchronously. The pressure rod 13 pushes the adjusting inclined groove 14 and the sliding frame 12. The sliding frame 12 drives the locking block 18 to move. At the same time, the sliding frame 12 presses the spring 15. The locking block 18 moves into the fixed side box 11 and leaves the limiting installation between it and the locking slot 6. At this time, the rear cover 3 can be removed from one side of the explosion-proof motor body 1 by the fixing pressure block 22 and the outer pressure plate 10 to clean and maintain the cooling fan 20 inside the rear cover 3.

[0029] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] 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 horizontal explosion-proof motor, characterized in that, include: Explosion-proof motor body (1); The rear cover (3) is installed on one side of the explosion-proof motor body (1); An external fixing block (4) is fixedly connected at equal intervals to the outside of the explosion-proof motor body (1). An installation port (5) is provided inside the external fixing block (4), and a bayonet (6) is provided inside the installation port (5). An outer fixing ring (7) is set on the outside of the rear cover (3). A plurality of fixed side boxes (11) that cooperate with the mounting port (5) are equidistantly arranged on one side of the outer fixing ring (7). A sliding frame (12) is slidably connected inside the fixed side box (11). A locking block (18) that cooperates with the bayonet (6) is fixedly connected on one side of the sliding frame (12). The locking block (18) is slidably connected to the fixed side box (11). An inner sliding top plate (8) is slidably connected inside the fixed side box (11). The inner sliding top plate (8) is movably connected to the sliding frame (12). The inner sliding top plate (8) is slidably connected to the outer fixed ring (7). A pressure rod (13) is symmetrically fixedly connected to the outer side of the inner sliding top plate (8). An adjusting groove (14) that cooperates with the pressure rod (13) is symmetrically opened inside the sliding frame (12). The pressure rod (13) is slidably connected to the adjusting groove (14).

2. A horizontal explosion-proof motor according to claim 1, characterized in that: The outer side of the back cover (3) is slidably connected to an outer sliding ring (9), one side of the inner sliding top plate (8) is fixedly connected to the outer sliding ring (9), a plurality of outer pressure plates (10) are fixedly connected at equal intervals to the outer side of the outer sliding ring (9), and a plurality of fixed pressure blocks (22) that cooperate with the outer pressure plates (10) are fixedly connected at equal intervals to the outer side of the outer fixed ring (7).

3. A horizontal explosion-proof motor according to claim 2, characterized in that: A fixed side plate (16) is symmetrically fixed to one side of the outer sliding ring (9), and the fixed side plate (16) is connected to the rear cover (3) by a fixing bolt (17).

4. A horizontal explosion-proof motor according to claim 1, characterized in that: The fixed side box (11) is equipped with a spring (15) inside. One end of the spring (15) is fixedly connected to the fixed side box (11), and the other end of the spring (15) is fixedly connected to the sliding frame (12).

5. A horizontal explosion-proof motor according to claim 1, characterized in that: A limiting mounting cylinder (2) that cooperates with the rear cover (3) is fixedly connected to one side of the explosion-proof motor body (1), and a cooling fan (20) is installed on one side of the explosion-proof motor body (1).

6. A horizontal explosion-proof motor according to claim 1, characterized in that: The back cover (3) has multiple heat dissipation holes (21) inside.