Automatic drainage device of air conditioning unit

By combining the design of guide plate, piston cylinder and rotating cylinder, the problem of outside air entering when the air conditioning unit drains under negative pressure is solved, realizing automatic drainage and stability of negative pressure environment, avoiding shutdown for cleaning.

CN223677948UActive Publication Date: 2025-12-16CHENGDU JINGXI PHARMACEUTICAL CO LTD
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Patent Information

Application Number
CN202520242984.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2025-12-16
Estimated Expiration
2035-02-17

AI Technical Summary

Technical Problem

When existing air conditioning units drain water under negative pressure, outside air can easily enter, requiring the unit to be shut down for cleaning. Furthermore, the existing system may allow outside air to enter during continuous drainage, affecting the negative pressure environment of the unit.

Method used

An automatic drainage device was designed, comprising a guide plate, piston cylinder, piston rod, sealing cover, rotating cylinder, and water receiving trough. The sealing cover is driven by negative pressure to close the through hole, the eccentric design of the rotating cylinder allows water to be discharged automatically, and the opening of the water receiving trough is closed by a slider to prevent air from entering.

Benefits of technology

It achieves automatic drainage under negative pressure, preventing outside air from entering, and eliminates the need for shutdown for cleaning, ensuring the stability of the unit's negative pressure environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of drainage of air conditioning units, in particular to an automatic drainage device of an air conditioning unit, which comprises a cylinder cover, a telescopic control component, a leading-out cylinder and a rotating cylinder. A feeding pipe communicated with the interior of the barrel cover is arranged on the barrel cover, a guide plate with a through hole A is arranged in the barrel cover and slidably connected with a sealing cover, and the sealing cover is located on the side, away from the feeding pipe, of the guide plate. The telescopic control assembly is connected with the guide plate and the sealing cover. The leading-out cylinder is movably connected with the cylinder cover, a through hole B communicating with the end, away from the feeding pipe, of the through hole A is formed in the leading-out cylinder, an extrusion plate is arranged at an opening of the through hole B, and a water outlet pipe communicating with the output end of the through hole B is arranged on the leading-out cylinder. The rotating cylinder is arranged in the guiding-out cylinder, the cambered surface of the rotating cylinder is slidably connected with the inner wall of the through hole B, a plurality of water receiving grooves are formed in the rotating cylinder, and sliding blocks are slidably arranged in the water receiving grooves. According to the utility model, the interior of the leading-out cylinder can be cleaned without shutdown, and air cannot enter the leading-out cylinder in a continuous water outlet state.
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Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning unit drainage technical field, in particular to a kind of air conditioning unit automatic drainage device. BACKGROUND

[0002] The main reason that air conditioning unit needs drainage is that condensate water is generated in the process of refrigeration and heating, and the condensate water cannot be discharged from the water outlet of the water pan because the surface cooling section of the combined air conditioning unit is in the negative pressure cavity section before the air supply fan. Until the unit is shut down, a large amount of water overflows from the bottom of the unit, causing damage to the building environment and working environment. On the other hand, the current combined air conditioning unit usually uses a water trap to drain water, which is easily limited by site conditions.

[0003] The technical solution disclosed in Chinese patent with authorization announcement number CN217654087U sets up three independent water storage cavities and realizes the functions of automatic drainage and sealing of the combined air conditioning unit under negative pressure by setting up baffles and movable doors.

[0004] However, the device still has some shortcomings: when the device is continuously draining water, the three baffles may be simultaneously connected, which allows external air to easily enter the air conditioning unit. In addition, the device needs to be cleaned when it is stopped. UTILITY MODEL CONTENT

[0005] The utility model aims at the problems in the background art and provides an air conditioning unit automatic drainage device.

[0006] The technical solution of the utility model is an air conditioning unit automatic drainage device, which comprises a cylinder cover, an inlet pipe connected to the inside of the cylinder cover, a guide plate with a through hole A arranged in the cylinder cover, a sealing cover slidingly connected to the guide plate, and the sealing cover located on the side of the guide plate away from the inlet pipe.

[0007] A telescopic control assembly is connected to the guide plate and the sealing cover.

[0008] A guide cylinder is movably connected to the cylinder cover, a through hole B is arranged in the guide cylinder and connected to the end of the through hole A away from the inlet pipe, an extrusion plate is arranged at the opening of the through hole B, the sealing cover is pushed away from the through hole A by the telescopic control assembly in the state that the guide cylinder is attached to the cylinder cover, and a water outlet pipe is arranged on the guide cylinder and connected to the output end of the through hole B.

[0009] A rotating cylinder is arranged in the guide cylinder, the arc surface of the rotating cylinder is slidingly connected to the inner wall of the through hole B, the axis of the rotating cylinder is offset from the center of the through hole B, a plurality of water receiving grooves are arranged in a ring array around the axis of the rotating cylinder, and a sliding block is slidingly connected to the inner wall of each water receiving groove.

[0010] Preferably, the barrel cover is provided with a lock hook, and a hinge is arranged on the other side of the lock hook.

[0011] Preferably, the telescopic control assembly comprises a piston barrel A, a piston A, a piston barrel B and a piston B. The piston barrel A is connected with the guide plate, and a connecting pipe in communication with the inside of the piston barrel A is arranged on the piston barrel A. The other end of the connecting pipe is connected with the piston barrel B in communication. The piston A is arranged in the piston barrel A and is in sliding connection with the inner wall of the piston barrel A. The piston A is connected with a piston rod A, the piston rod A penetrates through the guide plate and is in sliding connection with the guide plate, and the end of the piston rod A away from the piston A is connected with a limiting block. A spring is sleeved on the piston rod A, and the two ends of the spring are in abutment with the sides close to the guide plate and the limiting block, respectively. The piston B is arranged in the piston barrel B in sliding mode, and the piston B is connected with a piston rod B, and the piston rod B is connected with the sealing cover.

[0012] Preferably, the piston barrel A comprises a plurality of groups, and each piston barrel A is arranged in an annular array around the center of the through hole A.

[0013] Preferably, a circular groove in communication with the through hole B is arranged in the guide-out barrel, the axis of the circular groove deviates from the center of the through hole B, and the rotating barrel is arranged in the circular groove in sliding connection with the inner wall of the circular groove.

[0014] Preferably, a baffle is arranged on the inner side of the opening of the water collecting groove, and a clamping groove in engagement with the baffle is arranged on the sliding block.

[0015] Preferably, the exposed surface of the sliding block is an arc surface, and the curvature of the arc surface is consistent with the curvature of the arc surface of the rotating barrel.

[0016] Compared with the prior art, the utility model has the beneficial technical effects that:

[0017] Through the cooperation of the guide plate, the piston barrel A, the piston A, the piston rod A, the piston barrel B, the piston B, the piston rod B and the sealing cover, in the state that the barrel cover and the guide-out barrel are separated, the piston rod A pulls the piston A under the action of the spring tension, and then the piston B is driven to slide under the action of the negative pressure, and then the sealing cover is driven to slide and close the through hole A, so that the guide-out barrel can be separately disassembled without causing the air conditioner water to flow out irregularly. Through the arrangement of the rotating barrel, the axis of the rotating barrel deviates from the through hole B, and the water collecting groove is arranged on the rotating barrel and the sliding block is arranged in the water collecting groove. When the water falls into the water collecting groove with the opening facing upward and automatically drives the rotating barrel to rotate, the water in the water collecting groove with the opening facing downward or obliquely downward is automatically discharged, and the sliding block automatically closes the opening of the water collecting groove, so that the external air is prevented from being brought into the guide-out barrel in the state that the rotating barrel rotates. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of one embodiment of the utility model;

[0019] Figure 2 Fig. 3 is a schematic view of the internal structure of the cylinder cover;

[0020] Figure 3 Fig. 4 is a schematic view of the connection structure of the components on the guide plate;

[0021] Figure 4 Fig. 5 is a schematic view of the internal structure of the discharge cylinder;

[0022] Figure 5 Fig. 6 is a schematic view of the structure of the rotating cylinder.

[0023] Reference signs: 1, cylinder cover; 2, feed pipe; 3, guide plate; 31, through hole A; 32, chute; 4, piston cylinder A; 5, piston A; 6, piston rod A; 7, limit block; 8, spring; 9, connecting pipe; 10, piston cylinder B; 11, piston B; 12, piston rod B; 13, sealing cover; 14, discharge cylinder; 141, through hole B; 142, extrusion plate; 143, circular groove; 15, buckle; 16, water outlet pipe; 17, rotating cylinder; 171, water receiving groove; 18, baffle; 19, sliding block. DETAILED DESCRIPTION

[0024] Example 1

[0025] As Figures 1-5The utility model provides a kind of air conditioning unit automatic drainage device shown, including cylinder cover 1, telescopic control assembly, lead-out cylinder 14 and rotary drum 17.Cylinder cover 1 is provided with feeding pipe 2 being communicated with its inside, guide plate 3 with through-hole A31 is provided in cylinder cover 1, guide plate 3 is slidably connected sealing cover 13, sealing cover 13 is located in the side of guide plate 3 away from feeding pipe 2.Telescopic control assembly includes piston cylinder A4, piston A5, piston cylinder B10 and piston B11, piston cylinder A4 includes multiple groups, and each piston cylinder A4 is annular array distribution around the center of through-hole A31.Piston cylinder A4 is connected with guide plate 3, connecting pipe 9 being communicated with its inside is provided on piston cylinder A4, another end of connecting pipe 9 is connected with piston cylinder B10 and inside is communicated.Piston A5 is located in piston cylinder A4 and is slidably connected with its inner wall, piston A5 connects piston rod A6, piston rod A6 is through guide plate 3 and is slidably connected with it, and the end of piston rod A6 away from piston A5 is connected with limit block 7, spring 8 is set on piston rod A6, and the two ends of spring 8 are respectively with the side close to guide plate 3 and limit block 7 abut.Piston B11 is slidably arranged in piston cylinder B10, piston B11 connects piston rod B12, and piston rod B12 is connected with sealing cover 13.Cylinder cover 1 is provided with lock hook, and hinge is provided on the other side of lock hook on cylinder cover 1.The side of lead-out cylinder 14 is connected with hinge, and the other side of lead-out cylinder 14 is provided with hasp 15, and hasp 15 cooperates with lock hook.Lead-out cylinder 14 is provided with through-hole B141 being communicated with the end of through-hole A31 away from feeding pipe 2, and extrusion plate 142 is provided at the opening of through-hole B141, extrusion plate 142 is in the state that lead-out cylinder 14 and cylinder cover 1 are pasted and is abutted with limit block 7, and spring 8 accumulates tension, to in the state that lead-out cylinder 14 and cylinder cover 1 are pasted, through the action of telescopic control assembly, sealing cover 13 is pushed away from through-hole A31, and lead-out cylinder 14 is provided with water outlet pipe 16 being communicated with the output end of through-hole B141.Lead-out cylinder 14 is provided with circular groove 143 being communicated with through-hole B141, and the axis of circular groove 143 deviates the center of through-hole B141, and rotary drum 17 is located in circular groove 143 and is slidably connected with its inner wall.Rotary drum 17 is arranged in lead-out cylinder 14, and the arc surface of rotary drum 17 is slidably connected with the inner wall of through-hole B141, and the axis of rotary drum 17 deviates the center of through-hole B141, and a plurality of water receiving grooves 171 are arranged around the axis of rotary drum 17 in annular array, and sliding block 19 is slidably connected in water receiving groove 171.

[0026] In this embodiment, the air conditioner outlet pipe is connected with the feeding pipe 2 of the device, the air conditioner water enters the cylinder cover 1 through the feeding pipe 2 and enters the through hole B141 through the through hole A31, and then the water enters the water receiving groove 171 with the opening upward and the opening upward and obliquely, due to the eccentric design of the rotating drum 17, the rotating drum 17 is driven to rotate by the gravity of the water, when the water receiving groove rotates to the opening obliquely downward, the water is automatically discharged and discharged through the water outlet pipe 16, and the sliding block 19 is automatically lowered by its own gravity and closes the opening of the water receiving groove 171, and then the water receiving groove 171 continues to rotate into the circular groove 143, and after the water receiving groove 171 is exposed by the sliding block 19 after the opening of the water receiving groove 171 is upward, the cycle is repeated, and no electric energy is consumed, when it is necessary to replace or clean the discharge cylinder 14, only the buckle 15 needs to be opened, and the discharge cylinder 14 is turned over, at this time, since the pressing plate 142 no longer presses the limiting block 7, the limiting block 7 slides downward under the release of the tension of the spring 8, and the piston rod A6 and the piston A5 slide, the air in the piston cylinder B10 enters the piston cylinder A4 through the connecting pipe 9, the piston B11 and the piston rod B12 slide upward and pull the sealing cover 13 to slide upward to close the through hole A31, so that the outside air enters the cylinder cover 1.

[0027] Embodiment two

[0028] As shown in Figure 4 and Figure 5 The automatic water drainage device of the air conditioning unit is provided, compared with embodiment one, the inner side of the opening of the water receiving groove 171 is provided with a baffle 18, the sliding block 19 is provided with a clamping groove matched with the baffle 18, the exposed surface of the sliding block 19 is an arc surface, and the curvature of the arc surface is consistent with the curvature of the arc surface of the rotating drum 17.

[0029] In this embodiment, the baffle 18 can effectively position the sliding of the sliding block 19, and the exposed surface of the sliding block 19 maintains the curvature consistent with the curvature of the arc surface of the rotating drum 17, so that the air entering the water receiving groove 171 can be maximized. Cleanly drained, avoid rotating drum 17 in the state of rotating to guide the outside air into the inside of the discharge cylinder 14, thereby effectively avoiding the outside air entering the air conditioning unit and destroying the negative pressure environment of the air conditioning unit.

[0030] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this, within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. An automatic drainage device for an air conditioning unit, characterized by, The utility model relates to a water outlet device of a water tank, which comprises a cover (1) provided with a feeding pipe (2) communicating with the inside of the cover (1), a guide plate (3) provided in the cover (1) and having a through hole A (31), a sealing cover (13) slidably connected to the guide plate (3) and located on the side of the guide plate (3) away from the feeding pipe (2), a telescopic control assembly connecting the guide plate (3) and the sealing cover (13), a lead-out cylinder (14) movably connected to the cover (1) and provided with a through hole B (141) communicating with the end of the through hole A (31) away from the feeding pipe (2), the through hole B (141) being provided with an extrusion plate (142) at the opening thereof, so that the sealing cover (13) is pushed away from the through hole A (31) by the telescopic control assembly in the state that the lead-out cylinder (14) is attached to the cover (1), the lead-out cylinder (14) being provided with a water outlet pipe (16) communicating with the output end of the through hole B (141), and a rotary cylinder (17) provided in the lead-out cylinder (14) and having an arc surface slidably connected to the inner wall of the through hole B (141), the axis of the rotary cylinder (17) being offset from the center of the through hole B (141), and a plurality of water receiving grooves (171) arranged in a ring array around the axis of the rotary cylinder (17), each water receiving groove (171) being provided with a sliding block (19) slidably connected to the inner wall thereof. The cover (1) is provided with a lock hook, and a hinge is arranged on the other side of the lock hook on the cover (1); one side of the lead-out cylinder (14) is connected to the hinge, and the other side of the lead-out cylinder (14) is provided with a buckle (15) matched with the lock hook. The telescopic control assembly comprises a piston cylinder A (4), a piston A (5), a piston cylinder B (10) and a piston B (11); the piston cylinder A (4) is connected to the guide plate (3), and the piston cylinder A (4) is provided with a connecting pipe (9) communicating with the inside thereof, the other end of the connecting pipe (9) being connected to the piston cylinder B (10) and communicating with the inside thereof; the piston A (5) is located in the piston cylinder A (4) and slidably connected to the inner wall thereof, the piston A (5) being connected to a piston rod A (6), the piston rod A (6) penetrating through the guide plate (3) and slidably connected to the guide plate (3), and the end of the piston rod A (6) away from the piston A (5) being connected to a limiting block (7), a spring (8) being sleeved on the piston rod A (6), and the two ends of the spring (8) being abutted to the sides close to the guide plate (3) and the limiting block (7) respectively; the piston B (11) is slidably arranged in the piston cylinder B (10), the piston B (11) being connected to a piston rod B (12), and the piston rod B (12) being connected to the sealing cover (13). The piston cylinder A (4) comprises a plurality of groups, and each piston cylinder A (4) is arranged in a ring array around the center of the through hole A (31). The lead-out cylinder (14) is provided with a circular groove (143) communicating with the through hole B (141), the axis of the circular groove (143) being offset from the center of the through hole B (141), and the rotary cylinder (17) being located in the circular groove (143) and slidably connected to the inner wall thereof.

2. The automatic drainage device of an air conditioning unit according to claim 1, wherein The opening of the water receiving groove (171) is provided with a baffle (18), and the sliding block (19) is provided with a clamping groove matched with the baffle (18).

3. The automatic drain device of an air conditioning unit according to claim 1, wherein ​ 4. The automatic drain device of an air conditioning unit according to claim 3, wherein ​ 5. The automatic drain device of an air conditioning unit according to claim 1, wherein ​ 6. The automatic drain device of an air conditioning unit according to claim 1, wherein ​ 7. The automatic drain device of an air conditioning unit according to claim 1, wherein The exposed surface of the sliding block (19) is an arc surface, and the arc of the arc surface is consistent with the arc of the arc surface of the rotating drum (17).

Citation Information

Patent Citations

  • Automatic drainage and sealing device of combined air conditioning unit

    CN217654087U