Air conditioning unit condensate drain device

Abstract

The utility model relates to air conditioning unit technical field provides an air conditioning unit condensate water drainage device, include: drainage pipeline still include: two limit slots, symmetry sets up in the inner wall of drainage pipeline end. The utility model, under the action of the float ball, drives the scraper disc and the thimble etc. to move upwards proper distance, makes the movable rod gradually slide upwards along the inside of spiral guide groove, drives U -shaped block, round rod and scraper disc etc. to rotate proper angle, makes the thimble to break the impurity that the drainage pipeline end position is blocked, and under the cooperation of scraper disc rotation, can scrape the impurity of drainage pipeline end inner wall, in this way when the drainage pipeline end appears the blockage, influence condensate water to pass through's speed, can automatically clear up the impurity of the blockage position, avoid the water level of drainage pipeline end to rise continuously, and appear the back flow, prevent the water level of water collecting disc to rise, appear the situation of overflow, thereby improve the security of air conditioning unit operation.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning unit technology, and in particular to an air conditioning unit condensate drainage device. Background Technology

[0002] An air handling unit, also known as an air preparation unit, is a centralized air handling system. It uses a compressor to compress the refrigerant, increasing its temperature and pressure. The refrigerant then releases heat in the condenser and cools into a high-pressure liquid. After passing through an expansion valve to reduce pressure and temperature, the liquid enters the evaporator, where it absorbs heat from the surrounding air and vaporizes into a gas, thus achieving a cooling effect. It is widely used in applications requiring precise control of indoor temperature, humidity, and cleanliness, such as industrial electronics factories and hospital operating rooms.

[0003] In existing technology, when an air conditioning unit is running, the condensate produced is discharged into a condensate pan and then flows into a drain pipe to be discharged into the external environment or a designated drainage system. The end of the drain pipe may become blocked due to impurities such as dust, mold, and small insects, which reduces the outflow rate of the condensate or prevents it from flowing out. This causes the condensate to accumulate in the drain pipe, raising the water level in the condensate pan. Under the negative pressure suction of the air conditioning unit, the condensate in the condensate pan may overflow, affecting the safe operation of the air conditioning unit. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the existing technology where, during the operation of an air conditioning unit, condensate is discharged into a collection pan and then flows into a drain pipe to be discharged into the external environment or a designated drainage system. However, the end of the drain pipe may become blocked due to impurities such as dust, mold, and small insects, causing the condensate to flow out at a reduced speed or not at all. This results in condensate accumulating in the drain pipe, raising the water level in the collection pan, and potentially causing the condensate to overflow under the negative pressure suction of the air conditioning unit, thus affecting the safe operation of the air conditioning unit.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an air conditioning unit condensate drainage device, comprising: a drainage pipe, and further comprising:

[0006] Two limiting grooves are symmetrically opened on the inner wall of the end of the drainage pipe. A limiting strip is slidably connected inside the two limiting grooves. A connecting rod is rotatably connected at the center of the limiting strip. Multiple floats are fixedly connected at equal intervals on the outer surface of the connecting rod. A scraper is fixedly connected to one end of the connecting rod. Multiple pins are fixedly connected in a circumferential array on the top of the scraper.

[0007] Preferably, an installation sleeve is movably connected to the outer surface of the end of the drainage pipe, and two spiral guide grooves are formed in a circumferential array on the outer surface of the installation sleeve, with a movable rod slidably connected inside the spiral guide grooves.

[0008] Preferably, one end of each of the two movable rods is fixedly connected to a U-shaped block, and the top of the U-shaped block is fixedly connected to a round rod, which is fixedly connected to the scraper.

[0009] Preferably, a ring is fixedly connected to the top of the mounting sleeve, the ring is movably connected to the drainage pipe, two positioning blocks are symmetrically fixedly connected to the inner wall of the ring, two positioning grooves are symmetrically opened on the outer surface of the drainage pipe, and the outer surface of the positioning block is slidably connected to the inside of the positioning groove.

[0010] Preferably, two fixing blocks are symmetrically fixedly connected to the top of the ring, and a limiting rod is slidably connected to one side of the fixing block. Two positioning holes are symmetrically opened on the outer surface of the drainage pipe, and one end of the limiting rod is slidably connected inside the positioning hole.

[0011] Preferably, a spring is provided on the outer surface of the limiting rod, and the spring is fixedly connected to the fixing block and the limiting rod respectively.

[0012] Preferably, the connecting rod is made of a lightweight material, and the top of the scraper is set as an arc surface.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. This utility model, under the action of the float, causes the connecting rod to be subjected to an upward force, moving upward along the center of the limiting strip. This causes the scraper and ejector pin to move upward a suitable distance, allowing the movable rod to gradually slide upward along the interior of the spiral guide groove. This causes the U-shaped block, round rod, and scraper to rotate at an appropriate angle. The limiting strip provides a certain limiting effect on the connecting rod, allowing the scraper, ejector pin, round rod, and U-shaped block to rotate vertically upward. This allows the ejector pin to break through the impurities blocking the end of the drain pipe, and with the cooperation of the rotating scraper, the impurities on the inner wall of the end of the drain pipe can be scraped away. The system allows condensate to flow out of the blockage at the end of the drain pipe, washing away impurities. When the float loses the force of the condensate, the U-shaped block and other components, under the influence of gravity and in conjunction with the movable rod and spiral guide groove, rotate in the opposite direction, scraping away impurities from the inner wall of the drain pipe again. This automatically cleans the blockage when the drain pipe becomes clogged, affecting the flow rate of condensate, preventing the water level at the end of the drain pipe from rising continuously and causing backflow, and preventing the water level in the collection pan from rising and overflowing, thereby improving the safety of the air conditioning unit's operation.

[0015] 2. In this utility model, by pulling the limiting rod to one side, it is disengaged from the inside of the positioning hole, thus releasing the limitation on the fixing block. At the same time, the spring is stretched, allowing the ring and the mounting sleeve to slide downwards. Simultaneously, the positioning block slides downwards along the inside of the positioning groove, allowing the mounting sleeve and the ring to be removed from the outer surface of the drain pipe, and the float ball to be removed from the inside of the drain pipe. This facilitates disassembly and makes it easier to inspect or replace the float ball and other components later. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of an air conditioning unit condensate drainage device provided by this utility model;

[0017] Figure 2 A side view of an air conditioning unit condensate drainage device provided by this utility model;

[0018] Figure 3 A cross-sectional structural schematic diagram of an air conditioning unit condensate drainage device provided by this utility model;

[0019] Figure 4 This utility model provides a condensate drainage device for air conditioning units. Figure 3 Enlarged structural diagram at point A in the middle.

[0020] Legend:

[0021] 1. Drainage pipe; 101. Positioning hole; 102. Limiting groove; 103. Positioning groove; 2. Mounting sleeve; 201. Spiral guide groove; 202. Movable rod; 203. U-shaped block; 204. Round rod; 205. Scraper; 206. Ejector pin; 207. Connecting rod; 208. Float ball; 209. Limiting strip; 3. Ring; 301. Fixing block; 302. Limiting rod; 303. Spring; 304. Positioning block. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Examples, such as Figure 1-4As shown, this utility model provides a condensate drainage device for an air conditioning unit, including: a drainage pipe 1, and two limiting grooves 102 symmetrically opened on the inner wall of the end of the drainage pipe 1. The two limiting grooves 102 are slidably connected to limiting strips 209. A connecting rod 207 is rotatably connected to the center of the limiting strip 209. Multiple floats 208 are fixedly connected at equal intervals on the outer surface of the connecting rod 207. A scraper 205 is fixedly connected to one end of the connecting rod 207. Multiple pins 206 are fixedly connected in a circumferential array on the top of the scraper 205.

[0025] Furthermore, such as Figure 1-4 As shown, an installation sleeve 2 is movably connected to the outer surface of the end of the drainage pipe 1. Two spiral guide grooves 201 are formed in a circumferential array on the outer surface of the installation sleeve 2. A movable rod 202 is slidably connected inside the spiral guide grooves 201. With the above arrangement, the movable rod 202 can slide spirally upward or downward along the inside of the spiral guide grooves 201.

[0026] Furthermore, such as Figure 1-4 As shown, a U-shaped block 203 is fixedly connected to one end of each of the two movable rods 202. A round rod 204 is fixedly connected to the top of the U-shaped block 203. The round rod 204 is fixedly connected to the scraper 205. With the above arrangement, when the U-shaped block 203 rotates, it can drive the round rod 204 and the scraper 205 to rotate.

[0027] Furthermore, such as Figure 1-4 As shown, a ring 3 is fixedly connected to the top of the mounting sleeve 2. The ring 3 is movably connected to the drainage pipe 1. Two positioning blocks 304 are symmetrically fixedly connected to the inner wall of the ring 3. Two positioning grooves 103 are symmetrically opened on the outer surface of the drainage pipe 1. The outer surface of the positioning block 304 is slidably connected to the inside of the positioning groove 103. Through the setting of the positioning groove 103 and the positioning block 304, a certain positioning function is played, which allows the positioning block 304 to slide up and down along the inside of the positioning groove 103.

[0028] Furthermore, such as Figure 1-4 As shown, two fixing blocks 301 are symmetrically fixed to the top of the ring 3. A limiting rod 302 is slidably connected to one side of the fixing block 301. Two positioning holes 101 are symmetrically opened on the outer surface of the drainage pipe 1. One end of the limiting rod 302 is slidably connected to the inside of the positioning hole 101. By pulling the limiting rod 302 to one side, the inside of its positioning hole 101 can be removed, thus releasing the limiting of the fixing block 301.

[0029] Furthermore, such as Figure 1-4As shown, a spring 303 is provided on the outer surface of the limiting rod 302. The spring 303 is fixedly connected to the fixing block 301 and the limiting rod 302 respectively. Under the reset force of the spring 303, the limiting rod 302 can be inserted into the positioning hole 101 to realize the installation and fixation of the ring 3 and the mounting sleeve 2.

[0030] Furthermore, such as Figure 1-4 As shown, the connecting rod 207 is made of lightweight material, and the top of the scraper 205 is set as an arc surface. The use of lightweight material for the connecting rod 207 makes it easier for the float 208 to drive the connecting rod 207 to move upward. The arc surface of the scraper 205 makes it easier for condensate to wash away impurities on the scraper 205.

[0031] Working principle: During use, when the end of the drain pipe 1 becomes clogged due to impurities such as dust, mold, and small insects, water will accumulate at the end of the drain pipe 1, causing the water level to rise. Under the action of the float ball 208, the connecting rod 207 will be subjected to an upward force, moving upward along the center of the limiting strip 209. This will drive the scraper 205 and the ejector pin 206 to move upward a suitable distance, causing the movable rod 202 to gradually slide upward along the inside of the spiral guide groove 201, driving the U-shaped block 203 and the round rod 204. The scraper 205 and other components rotate at an appropriate angle. Through the setting of the limiting strip 209, the connecting rod 207 is limited, allowing the scraper 205, ejector pin 206, round rod 204, and U-shaped block 203 to rotate vertically upwards. This causes the ejector pin 206 to puncture the impurities blocking the end of the drain pipe 1. With the cooperation of the rotating scraper 205, impurities on the inner wall of the end of the drain pipe 1 are scraped away, allowing the condensate blocking the end of the drain pipe 1 to flow out and washing away the impurities. When the float 208 loses the force of the condensate, the U-shaped block 203... Under the influence of gravity, and in conjunction with the movable rod 202 and the spiral guide groove 201, the U-shaped block 203, the round rod 204, and the scraper 205 rotate in the opposite direction, scraping away impurities from the inner wall of the end of the drain pipe 1 again. This automatically cleans the blockage when it becomes clogged, affecting the flow of condensate water, preventing the water level at the end of the drain pipe 1 from rising continuously and causing backflow, and preventing the water level in the collection pan from rising and overflowing, thereby improving the operation of the air conditioning unit. To ensure safety, the limiting rod 302 is pulled to one side to disengage it from the inside of the positioning hole 101, thus releasing the limiting of the fixing block 301. Simultaneously, the spring 303 is stretched, allowing the ring 3 and the mounting sleeve 2 to slide downwards. Simultaneously, the positioning block 304 slides downwards along the inside of the positioning groove 103, allowing the mounting sleeve 2 and the ring 3 to be removed from the outer surface of the drain pipe 1, and the float 208 to be removed from the inside of the drain pipe 1. This facilitates disassembly and makes it easier to inspect or replace components such as the float 208 later.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A condensate drainage device for an air conditioning unit, comprising: Drainage pipe (1), characterized in that it further includes: Two limiting grooves (102) are symmetrically opened on the inner wall of the end of the drainage pipe (1). The two limiting grooves (102) are slidably connected to the inside of the limiting strips (209). A connecting rod (207) is rotatably connected at the center of the limiting strips (209). Multiple floats (208) are fixedly connected at equal intervals on the outer surface of the connecting rod (207). A scraper (205) is fixedly connected to one end of the connecting rod (207). Multiple ejector pins (206) are fixedly connected in a circular array on the top of the scraper (205).

2. The condensate drainage device for an air conditioning unit according to claim 1, characterized in that: The outer surface of the end of the drainage pipe (1) is movably connected to an installation sleeve (2). The outer surface of the installation sleeve (2) has two spiral guide grooves (201) arranged in a circumferential array. The spiral guide grooves (201) are slidably connected to a movable rod (202).

3. The condensate drainage device for an air conditioning unit according to claim 2, characterized in that: One end of each of the two movable rods (202) is fixedly connected to a U-shaped block (203), and the top of the U-shaped block (203) is fixedly connected to a round rod (204), which is fixedly connected to the scraper (205).

4. The condensate drainage device for an air conditioning unit according to claim 2, characterized in that: The top of the mounting sleeve (2) is fixedly connected to a ring (3), which is movably connected to the drainage pipe (1). Two positioning blocks (304) are symmetrically fixedly connected to the inner wall of the ring (3). Two positioning grooves (103) are symmetrically opened on the outer surface of the drainage pipe (1). The outer surface of the positioning block (304) is slidably connected to the inside of the positioning groove (103).

5. The condensate drainage device for an air conditioning unit according to claim 4, characterized in that: The top of the ring (3) is symmetrically fixed with two fixing blocks (301), and a limiting rod (302) is slidably connected to one side of the fixing block (301). The outer surface of the drainage pipe (1) is symmetrically opened with two positioning holes (101), and one end of the limiting rod (302) is slidably connected inside the positioning hole (101).

6. The condensate drainage device for an air conditioning unit according to claim 5, characterized in that: A spring (303) is provided on the outer surface of the limiting rod (302), and the spring (303) is fixedly connected to the fixing block (301) and the limiting rod (302) respectively.

7. The condensate drainage device for an air conditioning unit according to claim 3, characterized in that: The connecting rod (207) is made of lightweight material, and the top of the scraper (205) is set as an arc surface.

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