Motor double-cavity sealing structure of ozone water generating device

Abstract

The utility model discloses a motor double-cavity sealing structure of an ozone water generating device, which comprises a bottom cover, a fixing plate, a pressing plate, a gas diffusion plate, a motor and a shaft sleeve, the fixing plate is buckled on the bottom cover in a sealing way to form an inner cavity in a matching way, the top of the fixing plate is provided with a mounting surface, and the mounting surface is provided with a via hole; the gas diffusion plate is annular, an annular hole and a via hole of the gas diffusion plate are formed in the mounting surface in an opposite gap manner, the gap between the annular hole and the via hole forms a gas diffusion cavity, and the opposite via hole and the annular hole are matched to form a mounting channel; the shaft sleeve is arranged in the installation channel in a sealing fit mode, the motor is fixedly installed in the inner cavity, a coupling part of the motor penetrates through the upper portion of the inner cavity through the shaft sleeve, and an oil seal is arranged between the coupling part of the motor and the shaft sleeve. The pressing plate is of an annular structure and is connected between the fixing plate and the bottom cover in a sealed and buckled mode to form an outer cavity located on the outer side of the inner cavity in a matched mode. According to the utility model, by forming a double-sealing cavity structure which is distributed inside and outside, at least two sealing defensive lines are formed, and the waterproof reliability is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of household electrical appliances, especially relates to a motor double-cavity sealing structure of ozone water generating device. BACKGROUND

[0002] With the continuous development of society, the requirement of human being for health, environment and health is increasingly urgent. In order to remove the hormone in fruits, vegetables and meat, the food purifier is widely used. The existing food purifier generally comprises an ozone generating device for generating ozone and an ozone water generating device connected with the ozone generating device and mixing ozone and water to form ozone water by immersion in water.

[0003] The existing ozone water generating device generally comprises a shell formed by the butt joint of a bottom cover and a top cover, a isolating cover, a gas diffusion plate, an impeller, a fixed plate and a motor in the shell. The motor is the core power component of the device, which is used to drive the impeller to rotate to realize the stirring and mixing of ozone and water. If water enters the installation cavity of the motor due to leakage, it will damage the device. Therefore, the sealing reliability of the motor installation cavity is very important. However, the motor in the existing ozone water generating device is generally installed in the cavity formed by the sealing cooperation of the fixed plate and the bottom cover. It only has one sealing line, and the waterproof reliability is poor, which has room for improvement. SUMMARY

[0004] The utility model discloses in order to overcome the above-mentioned prior art defects, provide a kind of motor double-cavity sealing structure of ozone water generating device, it is formed by the sealing cooperation between bottom cover, fixed plate and pressing plate Inner and outer distribution double-cavity structure, motor is installed in inner cavity, so at least two sealing lines are formed, effectively improve waterproof reliability, ensure the use safety and reliability of device.

[0005] To achieve the above object, the utility model provides a kind of motor double-cavity sealing structure of ozone water generating device, including bottom cover, fixed plate, pressing plate, gas diffusion plate, motor and shaft sleeve, the fixed plate sealing buckle is covered on bottom cover to cooperate and form with inner cavity, the top of fixed plate has installation surface and the through hole is opened on the installation surface, the gas diffusion plate is circular ring structure and its ring hole is set on installation surface with the opposite gap of through hole, the gap between gas diffusion plate and fixed plate constitutes gas diffusion cavity and the through hole and ring hole cooperate to form installation channel opposite;

[0006] The shaft sleeve is sealingly cooperated in installation channel, the motor is fixedly installed in inner cavity and its coupling portion is passed to the upper portion of inner cavity by shaft sleeve, and oil seal is arranged between the coupling portion of motor and shaft sleeve.

[0007] The pressing plate is annular structure and it is sealingly buckled between fixed plate and bottom cover to cooperate and form with outer cavity located in the outer side of inner cavity.

[0008] Further, the lower surface of the fixed plate is provided with an annular embedding groove, and a first sealing ring is embedded in the annular embedding groove; and the bottom cover is correspondingly provided with an annular protrusion which extends into the annular embedding groove and abuts against the first sealing ring.

[0009] Further, the annular orifice of the gas diffusion plate is provided with a U-shaped sealing ring along the upper wrapping, and the shaft sleeve is provided with a pressing lip which cooperates with the mounting surface to clamp and fix the U-shaped sealing ring and the gas diffusion plate.

[0010] Further, the mounting surface of the fixed plate is provided with an L-shaped sealing ring, the outer edge of the gas diffusion plate is placed on the horizontal part of the L-shaped sealing ring, and the inner edge of the pressing plate has an inner pressing head which cooperates with the mounting surface to clamp and fix the L-shaped sealing ring and the gas diffusion plate.

[0011] Further, the bottom cover is provided with an annular groove, and an O-shaped sealing ring is embedded in the annular groove; and the outer edge of the pressing plate has an outer pressing head which abuts against the O-shaped sealing ring.

[0012] Further, the pressing plate is provided with a first fixing column extending downward, the bottom cover is correspondingly provided with a second fixing column extending upward at the position of the first fixing column, and the fixed plate is clamped between the first fixing column and the second fixing column and fixedly connected through a screw.

[0013] Further, the pressing plate is provided with a counterbore at the position of the first fixing column, the screw is arranged in the counterbore, and a sealing plug is embedded in the counterbore.

[0014] Further, at least one bearing is arranged between the shaft sleeve and the shaft of the motor.

[0015] Compared with the prior art, the utility model has the advantages of simple and reasonable structure, the cooperation of the sealing members between the pressing plate, the fixed plate and the bottom cover forms two sealing cavities arranged in the inside and outside, the motor is arranged in the inner cavity, two sealing lines are formed outside the motor, the reliability of waterproof is greatly improved, the use safety and reliability of the device are ensured, meanwhile, the assembly between the components of the lower cavity is simple and reasonable, only a small amount of fasteners can realize the stable connection between the components, the production efficiency of the device is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a sectional structure schematic view of an ozone water generating device of the utility model;

[0017] Figure 2 is a distribution schematic view of the inner and outer cavities of the ozone water generating device.

[0018] The following reference signs are marked on the drawings:

[0019] 1, top cover; 2, flow guide ring; 3, isolation cover; 4, impeller; 5, bottom cover; 51, annular protrusion; 52, second fixing column; 6, fixing plate; 7, pressing plate; 71, inner pressing head; 72, outer pressing head; 73, first fixing column; 8, gas diffusion plate; 9, shaft sleeve; 91, pressing lip; 92, limiting ring; 10, motor; 101, shaft coupling part; 11, oil seal; 12, first sealing ring; 13, U-shaped sealing ring; 14, L-shaped sealing ring; 15, O-shaped sealing ring; 16, bearing; 17, screw; 18, sealing plug; A, inner cavity; B, outer cavity. DETAILED DESCRIPTION

[0020] One specific embodiment of the present application will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of protection of the present application is not limited by the specific embodiment.

[0021] The ozone water generating device of the present application is shown in Figure 1 As shown in the drawings, it comprises a shell, which is formed by cooperation of a top cover 1, a flow guide ring 2 and a bottom cover 5, and the inner cavity A of the shell is divided into an upper cavity and a lower cavity; a motor 10 is arranged in the lower cavity, and the shaft coupling part 101 of the motor 10 extends upward and penetrates into the upper cavity; an isolation cover 3 is arranged in the upper cavity, and the outer edge surface of the isolation cover 3 abuts against the surface of the flow guide ring 2 to divide the upper cavity into an upper chamber and a lower chamber, and at the same time, the isolation cover 3 divides the holes on the flow guide ring 2 into a water inlet hole communicating with the upper chamber and a water outlet hole communicating with the lower chamber; an impeller 4 connected with the shaft coupling part 101 of the motor 10 is arranged in the lower chamber, and the impeller 4 rotates under the action of the motor 10 to realize stirring and mixing of ozone and water to form ozone water.

[0022] As shown in the drawings, Figure 1 and Figure 2 The lower cavity of the shell is a double-layer sealing cavity structure arranged inside and outside, thus forming at least two sealing defense lines, effectively improving the waterproof reliability, and ensuring the use safety and reliability of the device, which specifically comprises a bottom cover 5, a fixing plate 6, a pressing plate 7, a gas diffusion plate 8, a motor 10 and a shaft sleeve 9; wherein the fixing plate 6 is a cover structure and is sealed and buckled on the bottom cover 5 to cooperate to form the inner cavity A, the pressing plate 7 is an annular structure and is sealed and buckled between the fixing plate 6 and the bottom cover 5 to cooperate to form the outer cavity B located outside the inner cavity A, the motor 10 is fixedly installed in the inner cavity A, and the inner cavity A and the outer cavity B are both sealing cavity structures, thus forming two sealing defense lines, greatly improving the waterproof reliability of the motor 10.

[0023] As shown in the drawings, Figure 1 and Figure 2As shown, the top of the fixed plate 6 has a mounting surface and a through hole is formed in the mounting surface, the gas diffusion plate 8 is a circular ring titanium plate structure and the ring hole is arranged in the mounting surface in a gap opposite to the through hole, so that the gap between the gas diffusion plate 8 and the fixed plate 6 constitutes a gas diffusion cavity, and the gas diffusion cavity is connected to the main machine of the ozone machine through the ozone pipe, so that the ozone generated by the main machine of the ozone machine is supplied to the gas diffusion cavity through the ozone pipe and penetrates into the upper chamber through the holes on the gas diffusion plate 8 and mixes with water under the stirring action of the impeller 4 to form ozone water; The through hole on the fixed plate 6 is arranged opposite to the ring hole on the gas diffusion plate 8 to form a mounting channel, the shaft sleeve 9 is sealingly fitted in the mounting channel, the motor 10 is fixedly installed in the inner cavity A and its shaft coupling part 101 passes through the shaft sleeve 9 into the upper cavity, and the oil seal 11 is arranged between the shaft coupling part 101 and the shaft sleeve 9 for sealing, and at least one bearing 16 is arranged below the oil seal 11, so that the motor 10 is clamped and installed between the shaft sleeve 9 and the bottom cover 5 through the cooperation of the oil seal 11 and the at least one bearing 16; In this way, the sealing reliability between the inner cavity A and the upper cavity is ensured, and the stability of the motor 10 driving the shaft coupling part 101 to rotate is ensured.

[0024] In the embodiment, the lower surface of the fixed plate 6 is provided with an annular embedding groove, and the first sealing ring 12 is embedded in the annular embedding groove, and the annular protrusion 51 of the bottom cover 5 is arranged in the annular embedding groove and abuts against the first sealing ring 12, and the first sealing ring 12 is preferably a foamed silica gel ring, so as to ensure the sealing connection between the fixed plate 6 and the bottom cover 5; At the same time, the ring hole of the gas diffusion plate 8 is wrapped with a U-shaped sealing ring 13, and the shaft sleeve 9 is provided with a pressing lip 91 which presses on the U-shaped sealing ring 13 and the gas diffusion plate 8 and is clamped and fixed with the mounting surface, so as to ensure the sealing connection between the shaft sleeve 9, the gas diffusion plate 8 and the fixed plate 6; In this way, the inner cavity A is constructed as a completely sealed cavity structure through the cooperation of the first sealing ring 12, the U-shaped sealing ring 13 and the oil seal 11.

[0025] In the above scheme, the lower outer wall of the shaft sleeve 9 is provided with a thread, and the lower thread of the shaft sleeve 9 is connected with a limiting ring 92, and the limiting ring 92 and the pressing lip 91 are clamped to stably embed the shaft sleeve 9 in the mounting channel.

[0026] In the embodiment, the mounting surface of the fixed plate 6 is provided with an L-shaped sealing ring 14, the outer edge of the gas diffusion plate 8 is rested on the horizontal part of the L-shaped sealing ring 14, the inner edge of the pressing plate 7 is provided with an inner pressing head 71 which is pressed on the L-shaped sealing ring 14 and the gas diffusion plate 8 and is matched with the mounting surface of the fixed plate 6 to clamp and fix the same, so that the sealing connection between the pressing plate 7, the fixed plate 6 and the gas diffusion plate 8 is ensured; meanwhile, the bottom cover 5 is provided with an annular groove in which an O-shaped sealing ring 15 is embedded, and the outer edge of the pressing plate 7 is provided with an outer pressing head 72 which is pressed on the O-shaped sealing ring 15, so that the sealing connection between the pressing plate 7 and the bottom cover 5 is ensured; thus, the outer cavity B is formed as a completely sealed cavity structure through the cooperation of the L-shaped sealing ring 14 and the O-shaped sealing ring 15.

[0027] In the embodiment, the bottom cover 5 is provided with a plurality of second fixed columns 52 extending upward on the outer side of the annular protrusion 51, the pressing plate 7 is provided with a first fixed column 73 extending downward at the position corresponding to the second fixed column 52, the fixed plate 6 is clamped between the first fixed column 73 and the second fixed column 52, the fastening connection between the pressing plate 7, the fixed plate 6 and the bottom cover 5 is realized through the self-tapping screw 17 which is screwed from the first fixed column 73 of the pressing plate 7 to the second fixed column 52 of the bottom cover 5, and meanwhile, the gas diffusion plate 8 is also fastened and connected to the fixed plate 6 through the shaft sleeve 9 and the inner pressing head 71 of the pressing plate 7; preferably, the screw hole of the pressing plate 7 at the position corresponding to the first fixed column 73 is a counterbore structure and a sealing plug 18 is embedded in the counterbore, so that the isolation between the screw hole and the upper cavity is realized, and the service life of the self-tapping screw 17 is effectively ensured.

[0028] Compared with the prior art, the utility model has the advantages of simple and reasonable structure, the sealing member is matched between the pressing plate, the fixed plate and the bottom cover to form two sealing cavities arranged in the inner and outer, the motor is installed in the inner cavity, so that two sealing lines are formed outside the motor, the reliability of waterproof is greatly improved, and the use safety and reliability of the device are ensured; meanwhile, the assembly between the components of the lower cavity is simple and reasonable, and only a small amount of fasteners can realize the stable connection between the components, so that the production efficiency of the device is greatly improved.

[0029] The above disclosure is only an embodiment of the utility model, but the utility model is not limited to this, and any change conceived by those skilled in the art should fall within the protection scope of the utility model.

Claims

1. A motor double-cavity sealing structure of an ozone water generating apparatus, characterized by, It includes bottom cover, fixed plate, pressing plate, gas diffusion plate, motor and shaft sleeve, the fixed plate seals the buckle cover on the bottom cover to cooperate to form the inner cavity, the top of the fixed plate has the mounting surface and the through hole is opened on the mounting surface, the gas diffusion plate is circular ring structure and its ring hole is arranged on the mounting surface with opposite gap with the through hole, the gap between the gas diffusion plate and the fixed plate constitutes the gas diffusion cavity and the opposite through hole and ring hole cooperate to form the installation channel; The shaft sleeve is sealingly matched and arranged in the installation channel, the motor is fixedly installed in the inner cavity and its shaft coupling part penetrates the shaft sleeve to the upper side of the inner cavity, and an oil seal is arranged between the shaft coupling part of the motor and the shaft sleeve; The pressing plate is annular structure and its sealing buckle is connected between the fixed plate and the bottom cover to cooperate to form the outer cavity outside the inner cavity.

2. The motor double-cavity sealing structure of an ozone water generating device according to claim 1, characterized in that, The lower surface of the fixed plate is provided with an annular embedding groove, and a first sealing ring is embedded in the annular embedding groove, and an annular protrusion is provided on the bottom cover and extends into the annular embedding groove and abuts against the first sealing ring.

3. The motor double-cavity sealing structure of an ozone water generating device according to claim 1, characterized in that, The ring hole of the gas diffusion plate is provided with a U-shaped sealing ring wrapped along the upper edge, and a pressing lip is provided on the shaft sleeve, and the pressing lip and the mounting surface cooperate to clamp and fix the U-shaped sealing ring and the gas diffusion plate.

4. The double-cavity sealing structure of the motor of the ozone water generating device according to claim 1 or 3, characterized in that, The mounting surface of the fixed plate is provided with an L-shaped sealing ring, the outer edge of the gas diffusion plate is placed on the horizontal part of the L-shaped sealing ring, and the inner edge of the pressing plate has an inner pressing head, and the inner pressing head and the mounting surface cooperate to clamp and fix the L-shaped sealing ring and the gas diffusion plate.

5. The motor double-cavity sealing structure of an ozone water generating device according to claim 4, characterized in that, The bottom cover is provided with an annular groove, and an O-shaped sealing ring is embedded in the annular groove, and the outer edge of the pressing plate has an outer pressing head abutting on the O-shaped sealing ring.

6. The motor dual-cavity sealing structure of an ozone water generating device according to claim 1, wherein The pressing plate is provided with a first fixing column extending downward, the bottom cover is provided with a second fixing column extending upward corresponding to the first fixing column, the fixed plate is clamped between the first fixing column and the second fixing column, and the three are fixedly connected through screws.

7. The motor double-cavity sealing structure of an ozone water generating device according to claim 6, characterized in that, The pressing plate is provided with a counterbore corresponding to the first fixing column, the screw is arranged in the counterbore, and a sealing plug is embedded in the counterbore.

8. The motor double-cavity sealing structure of an ozone water generating device according to claim 1, characterized in that, At least one bearing is arranged between the shaft coupling part of the motor and the shaft sleeve.

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