Emptying device of air conditioning system

Abstract

The utility model belongs to the technical field of air conditioning emptiers, and particularly relates to an emptier of an air conditioning system, which comprises an outer unit, an emptying pipe for emptying is arranged on the outer unit, and a first gas one-way valve and an emptying valve are arranged on the emptying pipe. An air outlet pipe communicated with an inner cavity of the emptying pipe is arranged on the side wall of the emptying pipe, a second air one-way valve is arranged on the air outlet pipe, a dustproof net is arranged at the other end of the air outlet pipe, a rotating rod rotationally penetrates through the center of the dustproof net, and dedusting brush strips used for cleaning meshes of the dustproof net are arranged on the side wall of the rotating rod. The output rod of the electric telescopic rod drives the output rod to drive the lifting rod to ascend and descend in a reciprocating mode, so that gas in the emptying pipe is continuously pumped out, then pressed into the gas outlet pipe and finally exhausted to the outside through the dustproof net, a linkage plate also ascends and descends along with the output rod, and a rotating rod is driven to rotate through an internal thread and an external thread. The dust removal brush strip is driven to clean the net surface of the dustproof net, and the sprayed gas blows the dust to the outside, so that the dust is prevented from blocking the air outlet pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning emptying devices, in particular to an emptying device for an air conditioning system. Background Art

[0002] Residual air containing moisture in the air conditioning refrigeration cycle will lead to: increased condensing pressure; increased operating current; decreased refrigeration efficiency or blockage (ice blockage) and corrosion; and compressor cylinder burrs, copper plating and other faults. Therefore, removing the air from the pipe is a very important step in refrigeration system maintenance.

[0003] In the prior art, after the air conditioner is installed, it is necessary to manually unscrew the rear cover nuts of the high and low pressure valves to empty the air conditioner. However, after this method of emptying, a small amount of air will still remain in the air conditioning pipe, affecting the service life of the air conditioner and reducing the emptying effect of the air conditioner. In addition, the outdoor unit is outdoors for a long time. Once the emptying pipe is blocked by dust, it will affect the emptying. Therefore, it is necessary to develop an emptying device for the air conditioning system. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0006] An exhaust device for an air conditioning system, comprising:

[0007] An external machine, wherein the external machine is provided with an exhaust pipe for exhausting, and the exhaust pipe is provided with a first gas one-way valve and an exhaust valve;

[0008] An air outlet pipe, the side wall of the exhaust pipe is provided with an air outlet pipe connected to the inner cavity thereof, the air outlet pipe is provided with a second gas one-way valve, the other end of the air outlet pipe is provided with a dustproof net, the center of the dustproof net is provided with a rotating rod, and the side wall of the rotating rod is provided with a dust removal brush strip for cleaning the mesh of the dustproof net;

[0009] A lifting rod, the inner cavity of the exhaust pipe is located above the first gas one-way valve and is provided with a lifting rod for lifting and lowering movement, an electric telescopic rod is provided above the lifting rod, the output rod of the electric telescopic rod is movable in the vertical direction and the bottom end of the output rod is connected to the top of the lifting rod, the output rod is arranged parallel to the rotating rod, a horizontal linkage plate is fixedly arranged on the outer side of the output rod, the other end of the linkage plate is provided with an internal thread, the rod body of the rotating rod is provided with an external thread adapted to the internal thread, and the stroke of the output rod is consistent with the external thread as a whole.

[0010] As a preferred solution of the evacuation device of the air conditioning system described in the utility model, wherein: the first gas one-way valve controls the gas inside the evacuation pipe to be pressed only from the evacuation pipe into the gas outlet pipe, but not vice versa;

[0011] The second gas one-way valve controls the gas inside the gas outlet pipe to be discharged only from the gas outlet pipe to the outside, but not vice versa.

[0012] As a preferred solution of the emptying device of an air conditioning system described in the utility model, a bearing sleeve is arranged at the center of the dustproof net, and the shaft of the rotating rod passes through the inner side of the bearing sleeve.

[0013] As a preferred solution of the emptying device of an air-conditioning system described in the utility model, there are two dust removal brush strips, one above and one below, and the two dust removal brush strips are symmetrically arranged about the dustproof net.

[0014] As a preferred solution of the emptying device of an air conditioning system described in the utility model, a fixing plate is provided on the side wall of the external unit above the rotating rod, and the upper end of the rotating rod is rotatably connected to the fixing plate through a bearing seat.

[0015] As a preferred solution of the emptying device of an air conditioning system described in the utility model, wherein: a sealing ring is provided at the bottom end of the lifting rod, and the sealing ring is interference fit with the inner cavity of the emptying pipe.

[0016] As a preferred solution of the emptying device of an air conditioning system described in the utility model, a mounting plate is fixedly provided on the outer side of the external unit, and the upper end of the electric telescopic rod is fixed to the bottom of the mounting plate.

[0017] The beneficial effect of the utility model is that when it is necessary to empty the pipe, the emptying valve is opened and the electric telescopic rod is started. The output rod of the electric telescopic rod drives the output rod to drive the lifting rod to lift and lower back and forth, so that the gas inside the emptying pipe is continuously extracted and then pressed into the air outlet pipe, and finally, discharged to the outside through the dustproof net. In addition, the linkage plate also rises and falls with the output rod, and drives the rotating rod to rotate through the internal and external threads, driving the dust removal brush strip to clean the mesh surface of the dustproof net. The ejected gas will blow the dust to the outside to prevent the dust from clogging the air outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 For this utility model Figure 1 Schematic diagram of the structure of the middle A area;

[0021] Figure 3 It is a structural schematic diagram of the electric telescopic rod and its lower parts of the utility model;

[0022] Figure 4 It is a schematic structural diagram of the utility model dustproof net and its installation components viewed from the side and upward direction.

[0023] In the figure: an external unit 100, an exhaust pipe 110, a first gas one-way valve 120, an exhaust valve 130, an outlet pipe 200, a second gas one-way valve 210, a dustproof net 220, a rotating rod 230, a dust removal brush strip 240, a bearing sleeve 250, a fixing plate 260, a lifting rod 300, an electric telescopic rod 310, an output rod 320, a linkage plate 330, an internal thread 340, an external thread 350, a sealing ring 360, and a mounting plate 370. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0026] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0027] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] See also Figure 1-Figure 4 , which shows a schematic diagram of the structure of an embodiment of an air-conditioning system evacuation device of the utility model, please refer to Figure 1-Figure 4 , a detailed introduction is given to an exhaust device of an air conditioning system.

[0029] An exhaust device for an air conditioning system includes an outdoor unit 100, the outdoor unit 100 is provided with an exhaust pipe 110 for exhausting, the exhaust pipe 110 is provided with a first gas check valve 120 and an exhaust valve 130, the first gas check valve 120 controls the gas inside the exhaust pipe 110 to be pressed into an exhaust pipe 200 only from the exhaust pipe 110, and vice versa;

[0030] The side wall of the exhaust pipe 110 is provided with an air outlet pipe 200 connected to the inner cavity thereof, and the air outlet pipe 200 is provided with a second gas one-way valve 210, and the second gas one-way valve 210 controls the gas inside the air outlet pipe 200 to be discharged to the outside only from the air outlet pipe 200, and vice versa, a dustproof net 220 is provided at the other end of the air outlet pipe 200, and a rotating rod 230 is provided through the center of the dustproof net 220, and a dust removal brush strip 240 for cleaning the mesh of the dustproof net 220 is provided on the side wall of the rotating rod 230;

[0031] The inner cavity of the exhaust pipe 110 is located above the first gas one-way valve 120 and is provided with a lifting rod 300 for lifting and lowering movement. An electric telescopic rod 310 is provided above the lifting rod 300. The output rod 320 of the electric telescopic rod 310 moves in the vertical direction and the bottom end of the output rod 320 is connected to the top of the lifting rod 300. The output rod 320 is arranged parallel to the rotating rod 230. A horizontal linkage plate 330 is fixedly arranged on the outer side of the output rod 320. The other end of the linkage plate 330 is provided with an internal thread 340. The rod body of the rotating rod 230 is provided with an external thread 350 adapted to the internal thread 340. The stroke of the output rod 320 is consistent with the external thread 350 as a whole.

[0032] Furthermore, a bearing sleeve 250 is provided at the center of the dustproof net 220, and the shaft of the rotating rod 230 passes through the inner side of the bearing sleeve 250. The bearing sleeve 250 reduces the friction between the rotating rod 230 and the dustproof net 220 when the rotating rod 230 rotates.

[0033] Furthermore, there are two dust removal brush strips 240, one above the other, and the two dust removal brush strips 240 are symmetrically arranged about the dustproof net 220, so that the upper and lower net surfaces of the dustproof net 220 can be cleaned simultaneously.

[0034] Furthermore, a fixing plate 260 is provided on the side wall of the external unit 100 above the rotating rod 230 , and the upper end of the rotating rod 230 is rotatably connected to the fixing plate 260 via a bearing seat, and the fixing plate 260 serves to stabilize the rotating rod 230 .

[0035] Furthermore, a sealing ring 360 is provided at the bottom end of the lifting rod 300, and the sealing ring 360 is interference fit with the inner cavity of the exhaust pipe 110, thereby increasing the sealing between the lifting rod 300 and the inner wall of the exhaust pipe 110, which is beneficial to the extraction and pressure of the gas when the lifting rod 300 is raised or lowered.

[0036] Furthermore, a mounting plate 370 is fixedly provided on the outer side of the external unit 100 , and the upper end of the electric telescopic rod 310 is fixed to the bottom of the mounting plate 370 for fixing the mounting plate 370 .

[0037] When the air is to be emptied, the drain valve 130 is opened and the electric telescopic rod 310 is started. The output rod 320 of the electric telescopic rod 310 drives the output rod 320 to drive the lifting rod 300 to lift and lower back and forth, thereby continuously extracting the gas inside the drain pipe 110 and pressing it into the air outlet pipe 200, and finally, discharging it to the outside through the dustproof net 220. In addition, the linkage plate 330 also rises and falls with the output rod 320, and drives the rotating rod 230 to rotate through the internal thread 340 and the external thread 350, thereby driving the dust removal brush strip 240 to clean the mesh surface of the dustproof net 220, and the ejected gas will blow the dust to the outside to prevent the dust from clogging the air outlet pipe 200.

[0038] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An exhaust device for an air conditioning system, characterized in that: include: An external machine (100), wherein the external machine (100) is provided with an exhaust pipe (110) for exhausting, and the exhaust pipe (110) is provided with a first gas one-way valve (120) and an exhaust valve (130); An air outlet pipe (200), the side wall of the exhaust pipe (110) is provided with an air outlet pipe (200) connected to the inner cavity thereof, the air outlet pipe (200) is provided with a second gas one-way valve (210), the other end of the air outlet pipe (200) is provided with a dustproof net (220), a rotating rod (230) is provided through the center of the dustproof net (220) for rotation, and a dust removal brush strip (240) for cleaning the mesh of the dustproof net (220) is provided on the side wall of the rotating rod (230); A lifting rod (300), wherein the inner cavity of the exhaust pipe (110) is located above the first gas one-way valve (120) and is provided with a lifting rod (300) for lifting and movement, an electric telescopic rod (310) is provided above the lifting rod (300), an output rod (320) of the electric telescopic rod (310) is movable in a vertical direction and the bottom end of the output rod (320) is connected to the top of the lifting rod (300), the output rod (320) is arranged in parallel with the rotating rod (230), a transverse linkage plate (330) is fixedly arranged on the outer side of the output rod (320), the other end of the linkage plate (330) is provided with an internal thread (340), the rod body of the rotating rod (230) is provided with an external thread (350) adapted to the internal thread (340), and the stroke amount of the output rod (320) is consistent with the external thread (350) as a whole.

2. The evacuation device of an air conditioning system according to claim 1, characterized in that: The first gas one-way valve (120) controls the gas inside the exhaust pipe (110) to be pressed only from the exhaust pipe (110) into the gas outlet pipe (200), but not vice versa; The second gas one-way valve (210) controls the gas inside the gas outlet pipe (200) to be discharged only from the gas outlet pipe (200) to the outside, but not vice versa.

3. The evacuation device of an air conditioning system according to claim 1, characterized in that: A bearing sleeve (250) is arranged at the center of the dustproof net (220), and the shaft of the rotating rod (230) passes through the inner side of the bearing sleeve (250).

4. The evacuation device of an air conditioning system according to claim 1, characterized in that: The dust removal brush strips (240) are provided in two pieces, one above the other, and the two dust removal brush strips (240) are symmetrically arranged with respect to the dustproof net (220) in an upper and lower manner.

5. The evacuation device of an air conditioning system according to claim 1, characterized in that: A fixing plate (260) is provided on the side wall of the external unit (100) above the rotating rod (230), and the upper end of the rotating rod (230) is rotatably connected to the fixing plate (260) via a bearing seat.

6. The evacuation device of an air conditioning system according to claim 1, characterized in that: A sealing ring (360) is provided at the bottom end of the lifting rod (300), and the sealing ring (360) is interference-fitted with the inner cavity of the exhaust pipe (110).

7. The evacuation device of an air conditioning system according to claim 1, characterized in that: A mounting plate (370) is fixedly provided on the outer side of the external unit (100), and the upper end of the electric telescopic rod (310) is fixed to the bottom of the mounting plate (370).

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