CN220190572U - Mining explosion-proof motor drainage structures - Google Patents

Abstract

The utility model discloses a mining explosion-proof motor drainage structure which comprises a motor shell, wherein a drainage groove is formed in the bottom of the inner end surface of the motor shell, a water storage chamber is arranged at the lower end of the drainage groove, a first one-way valve is arranged between the drainage groove and the water storage chamber, a drain pipe is arranged at the bottom of the water storage chamber, a second one-way valve is arranged in the drain pipe, an air inlet hole is formed in the bottom of the water storage chamber, a sliding groove is formed in the lower end of the drain pipe, a sliding block is arranged in the sliding groove, a connecting rod is arranged on the side end surface of the sliding block, and a sealing plug is arranged at the end, far away from the sliding block, of the connecting rod. According to the utility model, the water in the water storage chamber is discharged intensively by the water storage chamber and the water discharge pipe under the siphon action, so that the tail end of the water discharge pipe is kept dry for most of the time, and concentrated water flow is formed during water discharge, so that the water discharge pipe can be effectively flushed, and the water discharge pipe is prevented from being blocked by moisture absorption dust all the time.

Description

Mining explosion-proof motor drainage structures

Technical Field

The utility model relates to the technical field of explosion-proof motors, in particular to a drainage structure of a mining explosion-proof motor.

Background

When the mining explosion-proof motor works underground in a coal mine, the internal temperature rise of the motor is higher under the condition of high-speed operation, condensed water is not accumulated on the inner wall of the motor shell after the motor stops for a period of time, particularly the phenomenon that the underground coal mine is often moist, particularly the shell water-cooled explosion-proof motor is more likely to generate condensed water, if the condensed water in the explosion-proof motor can not be discharged in time, the normal operation of the motor can be influenced, and the service life of the motor is reduced.

The existing drainage structure enables condensed water in the motor to be drained to the outside of the motor in real time mostly through the form of the second one-way valve, so that a small amount of water flow and trickling flow are always kept at a drainage outlet of the motor, but after dust is adsorbed by the water, the drainage outlet is easy to block, so that the drainage outlet needs to be cleaned regularly, the production efficiency is affected, labor force is wasted, and therefore, the mining explosion-proof motor drainage structure is needed to solve the problems.

Disclosure of Invention

The utility model aims to provide a mining explosion-proof motor drainage structure, which solves the problem that a drainage outlet is easy to block due to small drainage water flow of an explosion-proof motor in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a mining explosion-proof motor drainage structures, includes motor housing's interior terminal surface bottom is provided with the water drainage tank, the lower extreme of water drainage tank is provided with the reservoir chamber, be provided with first check valve between water drainage tank and the reservoir chamber, the bottom of reservoir chamber is provided with the drain pipe, be provided with the second check valve in the drain pipe, the bottom of reservoir chamber is provided with the inlet port, the lower extreme of drain pipe sets up the spout, be provided with the slider in the spout, the side end face of slider is provided with the connecting rod, the slider end of keeping away from of connecting rod is provided with the sealing plug.

Preferably, a partition plate is arranged in the water storage chamber, a slit is formed between the bottom of the partition plate and the water storage chamber, the water storage chamber is partitioned by the partition plate, the water storage area at the lower end of the water drainage tank is reduced, the evaporation area of water is reduced, and the water is prevented from evaporating into the motor again.

Preferably, the bottom of the water storage chamber is of an inclined surface structure, and the height of the bottom of the water storage chamber close to the end of the drain pipe is lower than that of the bottom of the water storage chamber far away from the end of the drain pipe, so that water flow can be ensured to be emptied.

Preferably, the drain pipe is of an inverted U-shaped structure, so that the drain pipe forms a siphon structure, and once the height of the page in the water storage chamber is higher than the height of the top of the drain pipe, condensed water is discharged in a concentrated mode, so that the drain pipe is kept clean under the flushing of water flow, a small amount of water drops in the drain pipe for a long time are avoided, and dust is easy to adsorb.

Preferably, the sealing plug is in sliding sealing connection with the air inlet, and when the sealing plug is inserted into the air inlet, the air inlet is closed, so that sewage is prevented from entering the water storage chamber through the air hole.

Preferably, a spring is arranged in the sliding groove, the sliding block is elastically connected with the sliding groove through the spring, so that the sliding block can be sprung upwards under the action of the spring, the sealing plug can be inserted into the air hole, when water flow impacts the sliding block, the sliding block extrudes the spring, so that the air hole is opened, the air pressure in the motor is balanced, and the condensed water can flow out at a high speed conveniently.

Preferably, a guide groove is arranged at the lower end of the air inlet hole, the connecting rod is inserted into the air hole and is in sliding connection with the guide groove, and the connecting rod is prevented from being inclined through the guide groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the water in the water storage chamber is discharged intensively by the water storage chamber and the water discharge pipe under the siphon action, so that the tail end of the water discharge pipe is kept dry for most of the time, and concentrated water flow is formed during water discharge, so that the water discharge pipe can be effectively flushed, and the water discharge pipe is prevented from being blocked by moisture absorption dust all the time.

2. According to the utility model, the air inlet hole is formed in the bottom of the water storage chamber and is matched with the sliding block, the spring and the sealing plug, so that when the motor drains, water flow flushes the sliding block, and the water flow in the water storage chamber can be stably drained.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a bottom view of the present utility model;

FIG. 3 is a cross-sectional view of FIG. 2 A-A in accordance with the present utility model;

fig. 4 is an enlarged view of fig. 3B in accordance with the present utility model.

In the figure: 1 motor shell, 11 water drainage groove, 111 first check valve, 12 water storage chamber, 121 baffle, 122 inlet port, 13 drain pipe, 131 second check valve, 14 spout, 141 spring, 15 guide groove, 2 slider, 21 connecting rod, 22 sealing plug.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1 to 4, a mining explosion-proof motor drainage structure in the drawings comprises a motor housing 1, a drainage tank 11 is arranged at the bottom of the inner end surface of the motor housing 1, a water storage chamber 12 is arranged at the lower end of the drainage tank 11, a first one-way valve 111 is arranged between the drainage tank 11 and the water storage chamber 12, a drainage pipe 13 is arranged at the bottom of the water storage chamber 12, a second one-way valve 131 is arranged in the drainage pipe 13, an air inlet hole 122 is arranged at the bottom of the water storage chamber 12, a sliding groove 14 is arranged at the lower end of the drainage pipe 13, a sliding block 2 is arranged in the sliding groove 14, a connecting rod 21 is arranged at the side end surface of the sliding block 2, and a sealing plug 22 is arranged at the end, far away from the sliding block 2, of the connecting rod 21.

The baffle 121 is arranged in the water storage chamber 12, a slit is formed between the bottom of the baffle 121 and the water storage chamber 12, the water storage chamber 12 is separated by the baffle 121, the water storage area at the lower end of the water drainage tank 11 is reduced, the evaporation area of water is reduced, and the water is prevented from evaporating into the motor again.

The bottom of the water storage chamber 12 is of an inclined surface structure, and the height of the bottom of the water storage chamber 12 close to the end of the drain pipe 13 is lower than the height of the bottom of the water storage chamber far away from the end of the drain pipe 13, so that water flow can be ensured to be emptied.

The drain pipe 13 is of an inverted U-shaped structure, so that the drain pipe 13 forms a siphon structure, and once the page height in the water storage chamber 12 is higher than the top height of the drain pipe 13, condensed water is discharged in a concentrated mode, so that the drain pipe 13 is kept clean under the flushing of water flow, a small amount of water drops in the drain pipe 13 for a long time are avoided, and dust is easy to adsorb.

The sealing plug 22 is in sliding sealing connection with the air inlet 122, and when the sealing plug 22 is inserted into the air inlet 122, the air inlet 122 is closed, so that sewage is prevented from entering the water storage chamber 12 through the air holes.

The sliding groove 14 is internally provided with the spring 141, the sliding block 2 is elastically connected with the sliding groove 14 through the spring 141, so that the sliding block 2 is sprung upwards under the action of the spring 141, the sealing plug 22 is kept to be inserted into the air hole, and when water flow impacts the sliding block 2, the sliding block 2 presses the spring 141, so that the air hole is opened, the air pressure in the motor is balanced, and the condensed water conveniently flows out at a high speed.

The lower end of the air inlet 122 is provided with a guide groove 15, and the connecting rod 21 is inserted into the air hole and is in sliding connection with the guide groove 15, and the connecting rod 21 is prevented from being inclined through the guide groove 15.

The motor is used when in use: when the motor generates condensed water, the condensed water flows into the water storage chamber 12 from the water drainage groove 11, when the water in the water storage chamber 12 is fully stored, the water in the water storage chamber 12 is drained by the water drainage pipe 13 for one time under the siphon action, and in the water drainage process, water flow flushes the sliding block 2, so that the sliding block 2 extrudes the spring 141, thereby enabling the sealing plug 22 to slide downwards from the air inlet hole 122, accelerating the water drainage in the water storage chamber 12, further enabling the tail end of the water drainage pipe 13 to keep dry for most of the time, and forming concentrated water flow during water drainage, so that the water drainage pipe 13 can be effectively flushed, and the phenomenon that the water drainage pipe 13 always leaks to cause the wet water drainage pipe 13 to absorb dust and block the water drainage pipe 13 is avoided.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model 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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a mining explosion-proof motor drainage structures which characterized in that includes:

motor housing (1) the interior terminal surface bottom of motor housing (1) is provided with water drainage tank (11), the lower extreme of water drainage tank (11) is provided with reservoir chamber (12), be provided with first check valve (111) between water drainage tank (11) and reservoir chamber (12), the bottom of reservoir chamber (12) is provided with drain pipe (13), be provided with second check valve (131) in drain pipe (13), the bottom of reservoir chamber (12) is provided with inlet port (122), the lower extreme of drain pipe (13) sets up spout (14), be provided with slider (2) in spout (14), the side end face of slider (2) is provided with connecting rod (21), the slider (2) end of keeping away from of connecting rod (21) is provided with sealing plug (22).

2. The mining explosion-proof motor drainage structure according to claim 1, wherein: a partition plate (121) is arranged in the water storage chamber (12), and a slit is formed between the bottom of the partition plate (121) and the water storage chamber (12).

3. The mining explosion-proof motor drainage structure according to claim 1, wherein: the bottom of the water storage chamber (12) is of an inclined surface structure, and the height of the bottom of the water storage chamber (12) close to the end of the drain pipe (13) is lower than the height of the bottom of the water storage chamber far away from the end of the drain pipe (13).

4. The mining explosion-proof motor drainage structure according to claim 1, wherein: the drain pipe (13) is of an inverted U-shaped structure.

5. The mining explosion-proof motor drainage structure according to claim 1, wherein: the sealing plug (22) is in sliding sealing connection with the air inlet hole (122).

6. The mining explosion-proof motor drainage structure according to claim 1, wherein: a spring (141) is arranged in the sliding groove (14), and the sliding block (2) is elastically connected with the sliding groove (14) through the spring (141).

7. The mining explosion-proof motor drainage structure according to claim 1, wherein: the lower end of the air inlet hole (122) is provided with a guide groove (15), and the connecting rod (21) is inserted into the air hole and is in sliding connection with the guide groove (15).