Air conditioner drainage pump

Abstract

The utility model discloses an air conditioner drainage pump which comprises a pump shell, an impeller, a fixing seat, a motor and a liquid level switch, a pump cavity is formed in the pump shell, the impeller is arranged in the pump cavity, the fixing seat is fixedly connected with the pump shell, the motor is fixed on the fixing seat, the motor is provided with a motor shaft, the motor shaft is connected with the impeller, and the liquid level switch is installed on the fixing seat. The liquid level switch is provided with a first limiting piece, the first limiting piece is provided with a limiting part, the fixing base is provided with a second limiting piece, the second limiting piece is provided with a through hole, and the limiting part is limited in the through hole through the elastic deformation effect. The stability of the liquid level switch on the fixing seat can be improved, and the liquid level switch is prevented from falling off.

Description

TECHNICAL FIELD

[0001] The utility model belongs to air conditioning equipment technical field, concretely relates to a kind of air conditioner drainage pump. BACKGROUND

[0002] When air conditioner indoor unit is refrigerated or dehumidified, the water in air can condense and drop in the water collecting tray below heat exchanger, and the condensate in water collecting tray is pumped out by drainage pump, when drainage pump fails or drainage pipeline is blocked, the condensate in water collecting tray will exceed the highest water level, resulting in water overflow or damage to air conditioning components, affecting the normal operation of the entire air conditioning system.

[0003] In order to solve the problem that the existing air conditioner drainage pump is damaged due to the accumulation of condensate when it fails or the drainage pipeline is blocked, the prior art discloses a utility model patent with the title of air conditioner drainage pump with liquid level switch (authorized publication number: CN204239335U).

[0004] In order to improve the installation convenience of the liquid level switch, the prior art discloses a utility model patent with the title of air conditioner drainage pump with liquid level switch and air conditioner with the same (authorized publication number: CN212389541U).

[0005] The prior art inserts a part of the liquid level switch into the receiving cavity of the mounting member, and when there is an error in the size of the part of the liquid level switch, there is a gap between the part of the liquid level switch and the receiving cavity, which can easily cause the liquid level switch to fall off. SUMMARY

[0006] The utility model aims at solving the above technical problems in the prior art, and provides an air conditioner drainage pump to increase the stability of the liquid level switch on the fixing seat.

[0007] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0008] An air conditioner drainage pump comprises a pump shell, an impeller, a fixing seat, a motor and a liquid level switch, the pump shell forms a pump cavity, the impeller is arranged in the pump cavity, the fixing seat is fixedly connected with the pump shell, the motor is fixed on the fixing seat, the motor is provided with a motor shaft, the motor shaft is connected with the impeller, and the liquid level switch is installed on the fixing seat. Its feature lies in that the liquid level switch is provided with a limiting piece one, the limiting piece one is provided with a limiting part, the fixing seat is provided with a limiting piece two, the limiting piece two is provided with a through hole, and the limiting part is limited in the through hole by elastic deformation.

[0009] Further, the limiting part adopts an insertion part, the insertion part is inserted into the through hole in horizontal direction, and the insertion part is clamped in the through hole by elastic deformation, so that the liquid level switch is installed horizontally.

[0010] Further, the insertion part and the limiting piece one form a limiting end one, the insertion part is provided with a limiting end two, the limiting end one and the limiting end two form a limiting groove, the inner wall of the through hole is limited in the limiting groove, the limiting end one is limited on the end face one of the limiting piece two, and the limiting end two is limited on the end face two of the limiting piece two.

[0011] Further, openings one are formed between the insertion parts, so that the insertion parts can be deformed after being extruded.

[0012] Further, the limiting part adopts a limiting block, the height direction of the limiting piece two is an A direction, the limiting piece one moves on the limiting piece two along the A direction, the limiting block is clamped in the through hole through elastic deformation, and the liquid level switch is vertically installed.

[0013] Further, the limiting piece one is provided with a sliding groove, one end of the sliding groove is closed through a groove wall, the other end of the sliding groove is provided with a slot, the limiting piece two is provided with a protruding part, the sliding groove slides into the protruding part through the slot, the sliding groove moves on the protruding part along the A direction, and when the limiting block is clamped in the through hole, the top surface of the protruding part is limited at the groove wall.

[0014] Further, the limiting piece one is provided with an opening two, the limiting piece one forms a connecting part, the limiting block is fixed on the connecting part, and the connecting part and the limiting block are located in the opening two, so that the connecting part can be deformed after the limiting block is extruded.

[0015] Further, the limiting block is provided with an inclined surface, and the distance between the inclined surface and the back surface of the limiting block gradually decreases from top to bottom.

[0016] Further, the liquid level switch comprises a liquid level rod, a limiting sheet and a float, the liquid level rod is fixed on the limiting piece one, the float is sleeved on the liquid level rod through a float hole, the liquid level rod is provided with a first variable diameter part, the maximum diameter of the first variable diameter part is greater than the diameter of the float hole, and the limiting sheet is fixed at the liquid level rod, so that the float moves in the area formed by the first variable diameter part and the limiting sheet.

[0017] Further, the liquid level rod is provided with a second variable diameter part, the second variable diameter part is located on the limiting sheet, and the maximum diameter of the second variable diameter part is greater than the diameter of the float hole.

[0018] The utility model discloses a liquid level switch fixing seat and liquid level switch, and has the following beneficial effects:

[0019] When the liquid level switch is installed, the limiting part can be elastically deformed, the state of the limiting part is changed, the limiting part can be located in the through hole, when the liquid level switch is installed in place, the limiting part returns to the initial state, the limiting part is limited in the through hole at this time, the stability of the liquid level switch on the fixing seat is increased, and the liquid level switch is prevented from falling. DRAWINGS

[0020] The utility model makes further explanation in combination with the drawings:

[0021] Figure 1 This is a schematic structural diagram of the first embodiment of the present utility model;

[0022] Figure 2 This is a structural diagram of the connection between the liquid level switch and the limit member in the first embodiment of the present utility model;

[0023] Figure 3 for Figure 2 Schematic diagram of the structure without float installed;

[0024] Figure 4 This is a schematic structural diagram of the limiting portion being limited in the through hole in the first embodiment of the present utility model;

[0025] Figure 5 This is a schematic structural diagram of the second position-limiting member in the first embodiment of the present utility model;

[0026] Figure 6 This is a schematic structural diagram of the second embodiment of the present utility model;

[0027] Figure 7 This is a schematic structural diagram of the limiting portion being limited in the through hole in the second embodiment of the present utility model;

[0028] Figure 8 This is a structural diagram of the connection between the liquid level switch and the limit member 1 in the second embodiment of the present utility model;

[0029] Figure 9 This is a schematic structural diagram of the second limiting member in the second embodiment of the present utility model;

[0030] Figure 10 for Figure 8 Schematic diagram of the local structure;

[0031] Figure 11 for Figure 10 Cross-sectional view along the BB direction.

[0032] In the figure, 1-pump housing; 2-fixing seat; 3-motor; 4-liquid level switch; 5-limiting member 1; 6-limiting member 2; 7-insertion part; 8-limiting end 2; 9-limiting end 1; 10-limiting groove; 11-opening 1; 12-through hole; 13-inner wall; 14-end face 2; 15-end face 1; 16-liquid level rod; 17-float; 18-float hole; 19-first reducing part; 20-limiting piece; 21-second reducing part; 22-limiting block; 23-sliding groove; 24-notch; 25-groove wall; 26-opening 2; 27-connecting part; 28-raised part; 29-inclined surface; 30-back surface. DETAILED DESCRIPTION

[0033] like Figures 1 to 5 As shown, this is the first embodiment of the present invention.

[0034] The utility model provides an air conditioner drainage pump, including pump shell 1, impeller, fixed base 2, motor 3 and liquid level switch 4, pump shell 1 is formed with pump cavity, and the impeller is located in the pump cavity. Fixed base 2 and pump shell 1 fixed connection, motor 3 is fixed on fixed base 2, and motor 3 is equipped with motor shaft, and the motor shaft is connected with the impeller, and liquid level switch 4 is installed on fixed base 2. The technical scheme is prior art, and the utility model does not elaborate any more.

[0035] Liquid level switch 4 includes liquid level rod 16, limit piece 20 and floater 17, floater 17 is sleeved on liquid level rod 16 through floater hole 18, liquid level rod 16 is equipped with the first variable diameter portion 19 in the shape of circular truncated cone, and the maximum diameter of first variable diameter portion 19 is greater than the diameter of floater hole 18, and limit piece 20 is fixed at the bottom of liquid level rod 16, so that floater 17 moves in the area formed by first variable diameter portion 19 and limit piece 20. Liquid level rod 16 is equipped with second variable diameter portion 21, and second variable diameter portion 21 is located on limit piece 20, and the maximum diameter of second variable diameter portion 21 is greater than the diameter of floater hole 18. In the use, floater 17 is located at the upper end of liquid level rod 16 and is sleeved on first variable diameter portion 19, and floater 17 is located at the lower end of liquid level rod 16 and is sleeved on second variable diameter portion 21, which reduces the gap between the inner side of floater hole 18 and the outer wall of liquid level rod 16, thereby reducing the vibration and collision amplitude between floater 17 and liquid level rod 16, and further reducing noise. The upper and lower ends both have shockproof effect, and can adapt to air conditioner drainage pump right installation and upside-down installation, and have strong adaptability.

[0036] Liquid level rod 16 of liquid level switch 4 is equipped with limit piece one 5, and limit piece one 5 is equipped with limit part. Fixed base 2 is equipped with limit piece two 6, and limit piece two 6 is equipped with through hole 12, and the limit part is limited in the through hole 12 through the elastic deformation effect.

[0037] In example one, the limit part adopts horizontally arranged insertion part 7, and opening one 11 is arranged between the two insertion parts 7, so that the insertion part 7 can be deformed after being extruded. Limit end one 9 is formed between insertion part 7 and limit piece one 5, insertion part 7 is equipped with triangular limit end two 8, and limit end one 9 and limit end two 8 form limit groove 10.

[0038] When the liquid level switch 4 is horizontally installed, the insertion part 7 of the limiting part one 5 is inserted into the through hole 12 in the horizontal direction, the limiting end two 8 is pressed at the hole wall of the through hole 12, and the insertion part 7 is deformed to the middle at this time. When the liquid level switch 4 is installed in place, the insertion part 7 returns to the initial state, the inner wall 13 of the through hole 12 is limited in the limiting groove 10, the limiting end one 9 is limited on the end face one 15 of the limiting part two 6 at this time, and the limiting end two 8 is limited on the end face two 14 of the limiting part two 6. The insertion part 7 is clamped in the through hole 12 through the elastic deformation effect at this time, the insertion part 7 is not easy to separate from the through hole 12, the stability of the liquid level switch 4 on the fixing seat 2 is increased, and the liquid level switch 4 is prevented from falling. Moreover, the insertion part 7 has a simple structure and can quickly install the liquid level switch 4.

[0039] As Figures 6 to 11 shown, it is embodiment two of the utility model,

[0040] An air conditioner drainage pump, comprising a pump shell 1, an impeller, a fixing seat 2, a motor 3 and a liquid level switch 4, the pump shell 1 is formed with a pump cavity, the impeller is arranged in the pump cavity, the fixing seat 2 is fixedly connected with the pump shell 1, the motor 3 is fixed on the fixing seat 2, the motor 3 is provided with a motor shaft, the motor shaft is connected with the impeller, and the liquid level switch 4 is installed on the fixing seat 2. The technical scheme is prior art, and the utility model will not be described.

[0041] The liquid level switch 4 comprises a liquid level rod 16, a limiting sheet 20 and a float 17, the float 17 is sleeved on the liquid level rod 16 through a float hole 18, the liquid level rod 16 is provided with a first variable-diameter part 19 in the shape of a circular truncated cone, the maximum diameter of the first variable-diameter part 19 is greater than the diameter of the float hole 18, the limiting sheet 20 is fixed at the bottom of the liquid level rod 16, and the float 17 moves in the area formed by the first variable-diameter part 19 and the limiting sheet 20. The liquid level rod 16 is provided with a second variable-diameter part 21, the second variable-diameter part 21 is arranged on the limiting sheet 20, and the maximum diameter of the second variable-diameter part 21 is greater than the diameter of the float hole 18. In the use process, the float 17 is sleeved on the first variable-diameter part 19 when being located at the upper end of the liquid level rod 16, and the float 17 is sleeved on the second variable-diameter part 21 when being located at the lower end of the liquid level rod 16, the gap between the inside of the float hole 18 and the outer wall of the liquid level rod 16 is reduced, the vibration and collision amplitude between the float 17 and the liquid level rod 16 is reduced, and then the noise is reduced, the shockproof effect is achieved at both upper and lower ends, and the air conditioner drainage pump can be adapted to be installed in the normal direction or upside down, and the adaptability is high.

[0042] The liquid level switch 4 is provided with a limiting part one 5, the limiting part one 5 is provided with a limiting part, the fixing seat 2 is provided with a limiting part two 6, the limiting part two 6 is provided with a through hole 12, and the limiting part is limited in the through hole 12 through the elastic deformation effect.

[0043] In the embodiment two, the limiting part adopts the limiting block 22, the limiting block 22 is provided with the inclined surface 29, the distance between the inclined surface 29 and the back surface 30 of the limiting block 22 gradually decreases from top to bottom, so that the inclined surface 29 has a guiding effect, and the limiting block 22 is conveniently inserted into the through hole 12. The limiting part one 5 is provided with the opening two 26, the limiting part one 5 is formed with the connecting part 27, the limiting block 22 is fixed on the connecting part 27, and the connecting part 27 and the limiting block 22 are arranged in the opening two 26. The height direction of the limiting part two 6 is the A direction, the limiting part one 5 is provided with the sliding groove 23, one end of the sliding groove 23 is closed through the groove wall 25, the other end of the sliding groove 23 is provided with the slot 24, and the limiting part two 6 is provided with the protruding part 28.

[0044] When the liquid level switch 4 is vertically installed, the sliding groove 23 of the limiting part one 5 is slid into the protruding part 28 of the limiting part two 6 through the slot 24, the sliding groove 23 moves on the protruding part 28 along the A direction, the limiting part one 5 moves on the limiting part two 6 along the A direction, at this time, the limiting block 22 is extruded by the outside of the limiting part two 6, and the connecting part 27 is deformed to the opening two 26. When the liquid level switch 4 is installed in place, the connecting part 27 returns to the initial state, and the top surface of the protruding part 28 is limited to the inside of the groove wall 25. The limiting block 22 is clamped in the through hole 12 through the elastic deformation effect, the limiting block 22 is not easy to separate from the through hole 12, the stability of the liquid level switch 4 on the fixing seat 2 is improved, and the liquid level switch 4 is prevented from falling. Moreover, the limiting block 22 has simple structure and can quickly install the liquid level switch 4.

[0045] When the liquid level switch is installed, the limiting part can be elastically deformed, the state of the limiting part is changed, the limiting part can be arranged in the through hole, when the liquid level switch is installed in place, the limiting part returns to the initial state, at this time, the limiting part is limited in the through hole, the stability of the liquid level switch on the fixing seat is improved, and the liquid level switch is prevented from falling.

[0046] In the embodiment one and the embodiment two, the left side and the right side of the fixing seat 2 can install the liquid level switch 4, and the liquid level switch 4 can be installed on the side with larger installation space according to the needs of customers.

[0047] The above is only a specific embodiment of the utility model, but the technical features of the utility model are not limited to this. Any simple change, equivalent replacement or modification made on the basis of the utility model to solve basically the same technical problem and realize basically the same technical effect is covered in the protection scope of the utility model.

Claims

1. An air conditioner drainage pump, comprising: a pump shell, which is formed with a pump cavity; an impeller, which is arranged in the pump cavity; a fixing seat, which is fixedly connected with the pump shell; a motor, which is fixed on the fixing seat and is provided with a motor shaft connected with the impeller; a liquid level switch, which is mounted on the fixing seat; characterized in that: the liquid level switch is provided with a limiting piece one, the limiting piece one is provided with a limiting part, the fixing seat is provided with a limiting piece two, the limiting piece two is provided with a through hole, and the limiting part is limited in the through hole through elastic deformation.

2. The air conditioning drain pump of claim 1, wherein: The limiting part adopts an insertion part, which is inserted into the through hole in the horizontal direction, and the insertion part is clamped in the through hole through elastic deformation.

3. The air conditioning drain pump of claim 2, wherein: The insertion part and the limiting piece one form a limiting end one, the insertion part is provided with a limiting end two, the limiting end one and the limiting end two form a limiting groove, the inner wall of the through hole is limited in the limiting groove, so that the limiting end one is limited on the end face one of the limiting piece two, and the limiting end two is limited on the end face two of the limiting piece two.

4. The air conditioning drain pump of claim 2, wherein: The insertion part is formed with an opening one, so that the insertion part can be deformed after being extruded.

5. The air conditioning drain pump of claim 1, wherein: The limiting part adopts a limiting block, the height direction of the limiting piece two is A direction, the limiting piece one moves on the limiting piece two along the A direction, and the limiting block is clamped in the through hole through elastic deformation.

6. The air conditioning drain pump of claim 5, wherein: The limiting piece one is provided with a sliding groove, one end of the sliding groove is closed through a groove wall, the other end of the sliding groove is provided with a slot, the limiting piece two is provided with a protruding part, the sliding groove slides into the protruding part through the slot, the sliding groove moves on the protruding part along the A direction, and when the limiting block is clamped in the through hole, the top surface of the protruding part is limited at the groove wall.

7. The air conditioning drain pump of claim 5, wherein: The limiting piece one is provided with an opening two, the limiting piece one is formed with a connecting part, the limiting block is fixed on the connecting part, and the connecting part and the limiting block are arranged in the opening two, so that the connecting part can be deformed after the limiting block is extruded.

8. The air conditioning drain pump of claim 5, wherein: The limiting block is provided with an inclined surface, and the distance between the inclined surface and the back surface of the limiting block gradually decreases from top to bottom.

9. The air conditioning drain pump of claim 1, wherein: The liquid level switch comprises a liquid level rod, a limiting sheet and a float, the liquid level rod is fixed on the limiting piece one, the float is sleeved on the liquid level rod through a float hole, the liquid level rod is provided with a first variable diameter part, the maximum diameter of the first variable diameter part is greater than the diameter of the float hole, and the limiting sheet is fixed at the liquid level rod, so that the float moves in the area formed by the first variable diameter part and the limiting sheet.

10. The air conditioning drain pump of claim 9, wherein: The liquid level rod is provided with a second variable diameter part, the second variable diameter part is arranged on the limiting sheet, and the maximum diameter of the second variable diameter part is greater than the diameter of the float hole.

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