Refrigerant filling and sealing structure

Abstract

The utility model relates to the field of refrigerant filling, and discloses a refrigerant filling and sealing structure which comprises a filling bottle, a feeding pipe is arranged at the top of the filling bottle, a filling pipe is connected to the inner wall of the feeding pipe in an embedded mode, a fixing frame is fixedly connected to the outer surface of the filling pipe, a first magnetic plate is fixedly installed at the bottom of the fixing frame, and a second magnetic plate is fixedly installed at the bottom of the fixing frame. An elastic cushion is fixedly installed on the inner wall of the fixing frame, a fixing ring is in lap joint with the top end of the feeding pipe, the fixing ring is in lap joint with the bottom of the elastic cushion, and a supporting frame is fixedly installed on the outer surface of the fixing ring. Through the supporting frame, the fixing frame, the elastic cushion, the first magnetic plate and the second magnetic plate, the filling pipe is embedded into the feeding pipe, the fixing frame and the supporting frame are tightly connected, the filling pipe is fixedly connected into the feeding pipe, sealing between the filling pipe and the feeding pipe is guaranteed through the elastic cushion, the situation that a refrigerant leaks during filling is avoided, and the working efficiency is improved. And the filling is safer.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerant filling, in particular to a filling and sealing structure for refrigerant. Background Technique

[0002] Refrigerant is a medium for energy conversion in various heat engines. These substances usually increase power through reversible phase changes, used to absorb heat from the object to be cooled at low temperatures and transfer it to cooling water or air at higher temperatures. Before use, refrigerant needs to be filled, so an existing filling and sealing structure for refrigerant has been continuously innovated and developed. It can be seen that the current filling and sealing structure for refrigerant basically meets people's needs, but there are still some problems.

[0003] For example, the patent document with the publication number CN216235971U discloses a sealing connection device for refrigerant filling, which "comprises a mounting frame, a positioning block is connected to the upper end of the mounting frame, a connecting pipe is connected to the bottom end of the positioning block, a filling pipe is connected to the bottom end of the connecting pipe, a filling port is connected to the bottom end of the filling pipe, and a sealing structure is connected to the upper end of the filling port. The sealing structure includes a fixed block, the upper end of the filling port is connected to the fixed block, a connecting rod penetrates through the inside of the fixed block, a tension spring is connected to the upper end of the connecting rod. The sealing connection device for refrigerant filling of the utility model increases the tightness of the connection through an embedded connection, and the connection is more firm after connection, avoiding falling off. During filling, the filling starts by pushing the push rod upward. When the cylinder and the filling port are separated, the separation is realized automatically to ensure the sealing of the filling pipe and the filling port. In addition, the embedding of the sealing groove makes the internal sealing effect more perfect, and can effectively avoid environmental pollution caused by leakage."

[0004] However, when the above device is actually used, the filling is carried out by inserting the injection port of the cylinder into the inside of the filling port. Since the opening diameter of the filling port is larger than the diameter of the injection port of the cylinder, during the refrigerant filling process, the refrigerant leaks from the gap between the opening of the filling port and the injection port of the cylinder, resulting in waste and environmental pollution. Moreover, due to the outflow of the refrigerant between the sealing gasket and the cylinder, they are prone to slip relative to each other, resulting in a decrease in the sealing performance of the connection. Therefore, there is an urgent need for a filling and sealing structure for refrigerant to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a filling and sealing structure for refrigerant to solve the problem of poor filling and sealing effect in the above background technique during use.

[0006] To achieve the above object, the present utility model provides the following technical solutions, and discloses a filling and sealing structure for a refrigerant, including a filling bottle, wherein a feed pipe is provided at the top of the filling bottle, and a filling pipe is fitted and connected to the inner wall of the feed pipe;

[0007] A fixing frame, the fixing frame is fixedly connected to the outer surface of the filling pipe, a first magnetic plate is fixedly installed at the bottom of the fixing frame, an elastic pad is fixedly installed on the inner wall of the fixing frame, the top end of the feed pipe is lapped with a fixing ring, and the fixing ring is lapped at the bottom of the elastic pad, and a support frame is fixedly installed on the outer surface of the fixing ring.

[0008] Preferably, a hose is threadedly connected to the outer surface of the feed pipe, and the hose is lapped on the top of the filling bottle.

[0009] Preferably, a second magnetic plate is fixedly installed on the inner wall of the support frame, and the second magnetic plate is lapped on the top of the first magnetic plate.

[0010] Preferably, a first valve is connected to the outer surface of the fixing frame, and the first valve is rotatably connected to the inner wall of the filling pipe.

[0011] Preferably, a sealing sleeve is provided on the outer surface of the hose, and the sealing sleeve is lapped on the outer surface of the feed pipe.

[0012] Preferably, a second valve is rotatably connected to the outer surface of the feed pipe, and the second valve is located above the hose.

[0013] Preferably, a base is provided at the bottom of the filling bottle, and universal wheels are provided at the bottom of the base.

[0014] Preferably, the opening diameter of the filling pipe is smaller than the pipe body diameter, and the filling pipe is lapped on the inner wall of the elastic pad.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. In the present utility model, by inserting the support frame onto the feed pipe and then driving the fixing frame to be placed on the support frame, at this time the filling pipe is embedded into the feed pipe along with the fixing frame. By utilizing the mutual attraction between the first magnetic plate and the second magnetic plate, the tightness of the connection between the fixing frame and the support frame is increased, thereby quickly fixing the filling pipe on the feed pipe of the filling bottle, avoiding the situation that the filling pipe falls off or there is a connection misalignment between the filling pipe and the feed pipe of the filling bottle during filling, resulting in refrigerant leakage, improving the safety of filling, and ensuring a sealed connection between the filling pipe and the feed pipe through the elastic pad, thereby effectively avoiding the situation of leakage and causing environmental pollution.

[0017] 2. The utility model understands the filling condition of the refrigerant in the filling bottle by the liquid content inside the hose, which is convenient for real-time observation and detection. When the hose contains refrigerant, by closing the first valve and the second valve, the filling pipe and the filling bottle filled with refrigerant are sealed, ensuring the safety of the filling operation, and the operation is convenient and easy to use. Brief Description of the Drawings

[0018] Figure 1 is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 is a schematic diagram of the support frame structure of the utility model;

[0020] Figure 3 is a schematic diagram of the fixing frame structure of the utility model;

[0021] Figure 4 is a schematic diagram of the hose structure of the utility model;

[0022] Figure 5 is the utility model in Figure 3 Schematic diagram of the structure at A.

[0023] In the figure: 1, filling bottle; 2, feed pipe; 3, filling pipe; 4, fixing frame; 5, first magnetic plate; 6, elastic pad; 7, fixing ring; 8, support frame; 9, hose; 10, second magnetic plate; 11, first valve; 12, sealing sleeve; 13, second valve; 14, base; 15, universal wheel. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0025] Please refer to Figure 1 , Figure 3 and Figure 5 , an embodiment provided by the present utility model:

[0026] It includes a filling bottle 1. A feed pipe 2 is provided at the top of the filling bottle 1. A filling pipe 3 is fitted and connected to the inner wall of the feed pipe 2. A fixing frame 4 is fixedly connected to the outer surface of the filling pipe 3. A first magnetic plate 5 is fixedly installed at the bottom of the fixing frame 4. An elastic pad 6 is fixedly installed on the inner wall of the fixing frame 4. The top end of the feed pipe 2 is lapped with a fixing ring 7, and the fixing ring 7 is lapped on the bottom of the elastic pad 6. A support frame 8 is fixedly installed on the outer surface of the fixing ring 7. A second magnetic plate 10 is fixedly installed on the inner wall of the support frame 8, and the second magnetic plate 10 is lapped on the top of the first magnetic plate 5. The opening diameter of the filling pipe 3 is smaller than the pipe body diameter, and the filling pipe 3 is lapped on the inner wall of the elastic pad 6;

[0027] When filling the refrigerant into the filling bottle 1, the operator drives the support frame 8 to insert onto the feed pipe 2. Then the support frame 8 drives the fixing ring 7 to approach the feed pipe 2, making the fixing ring 7 contact the feed pipe 2. After that, the operator drives the fixing frame 4 to approach the support frame 8. Then the fixing frame 4 drives the first magnetic plate 5 to approach the support frame 8 and insert into the support frame 8. Then, by using the mutual attraction between the first magnetic plate 5 and the second magnetic plate 10, the fixing frame 4 and the support frame 8 are stably connected together. At the same time, the fixing frame 4 drives the filling pipe 3 to approach the feed pipe 2 and insert into the feed pipe 2 for easy filling. Through the shape design of the filling pipe 3, it guides the refrigerant to flow into the filling bottle 1 through the feed pipe 2. By setting the elastic pad 6, it ensures the sealing of the feed pipe 2 during filling. When the filling is completed, the operator drives the fixing frame 4 to move upward. Then the fixing frame 4 drives the first magnetic plate 5 and the filling pipe 3 to move upward. After that, the first magnetic plate 5 drives the support frame 8 to move upward through the second magnetic plate 10, making the support frame 8 and the filling pipe 3 away from the feed pipe 2, facilitating a new round of refrigerant filling.

[0028] Further, a base 14 is provided at the bottom of the filling bottle 1. Universal wheels 15 are provided at the bottom of the base 14; the filling bottle 1 can be conveniently moved through the universal wheels 15, improving the flexibility of the filling bottle 1.

[0029] Please refer to Figure 2 、 Figure 3 and Figure 4 For an embodiment provided by the present utility model:

[0030] A hose 9 is threadedly connected to the outer surface of the feed pipe 2, and the hose 9 is lapped on the top of the filling bottle 1. A first valve 11 is connected to the outer surface of the fixing frame 4, and the first valve 11 is rotatably connected to the inner wall of the filling pipe 3. A second valve 13 is rotatably connected to the outer surface of the feed pipe 2, and the second valve 13 is located above the hose 9;

[0031] Since the hose 9 is set as a transparent plastic tube, the filling condition of the refrigerant in the filling bottle 1 can be determined through the hose 9. When the hose 9 contains refrigerant liquid, by driving the first valve 11 to rotate, the opening of the filling pipe 3 is closed to stop filling, and then by driving the second valve 13 to rotate, the opening of the feed pipe 2 is closed, so as to seal the filling bottle 1 filled with refrigerant.

[0032] Furthermore, a sealing sleeve 12 is arranged on the outer surface of the hose 9, and the sealing sleeve 12 overlaps on the outer surface of the feed pipe 2; the sealing sleeve 12 ensures the sealed connection between the hose 9 and the feed pipe 2.

[0033] Working principle: When filling the refrigerant into the filling bottle 1, the operator first engages the support frame 8 with the feed pipe 2 through the fixing ring 7, and then drives the fixing frame 4 close to the support frame 8, drives the first magnetic plate 5 close to and insert into the support frame 8. By utilizing the mutual attraction between the first magnetic plate 5 and the second magnetic plate 10, the tightness of the connection between the fixing frame 4 and the support frame 8 is increased. At this time, the fixing frame 4 drives the filling pipe 3 to be inserted into the feed pipe 2, so as to fix the filling pipe 3 on the filling bottle 1 through the feed pipe 2, avoiding the problem that the connection between the filling pipe 3 and the feed pipe 2 of the filling bottle 1 is misaligned during filling, resulting in refrigerant leakage, improving the safety of refrigerant filling. The sealing between the filling pipe 3 and the feed pipe 2 is ensured by the elastic pad 6, and the filling method of inserting the filling pipe 3 into the feed pipe 2 of the filling bottle 1 can effectively avoid the situation of environmental pollution caused by leakage. In addition, it is determined whether the filling bottle 1 is filled with refrigerant by the liquid content in the hose 9. When the hose 9 contains refrigerant liquid, by closing the first valve 11 and the second valve 13, the filling pipe 3 and the filling bottle 1 filled with refrigerant are sealed, ensuring the safety of the filling operation.

[0034] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A refrigerant filling and sealing structure, comprising a filling bottle (1), characterized in that: A feeding pipe (2) is arranged on the top of the filling bottle (1), and a filling pipe (3) is embedded and connected to the inner wall of the feeding pipe (2); A fixing frame (4), wherein the fixing frame (4) is fixedly connected to the outer surface of the filling tube (3), a first magnetic plate (5) is fixedly mounted on the bottom of the fixing frame (4), an elastic pad (6) is fixedly mounted on the inner wall of the fixing frame (4), a fixing ring (7) is overlapped on the top of the feeding tube (2), and the fixing ring (7) is overlapped on the bottom of the elastic pad (6), a supporting frame (8) is fixedly mounted on the outer surface of the fixing ring (7), a hose (9) is threadedly connected to the outer surface of the feeding tube (2), and the hose (9) is overlapped on the top of the filling bottle (1), and a second magnetic plate (10) is fixedly mounted on the inner wall of the supporting frame (8), and the second magnetic plate (10) is overlapped on the top of the first magnetic plate (5).

2. A refrigerant filling and sealing structure according to claim 1, characterized in that: The outer surface of the fixing frame (4) is connected to a first valve (11), and the first valve (11) is rotatably connected to the inner wall of the filling tube (3).

3. The refrigerant filling and sealing structure according to claim 1, characterized in that: The outer surface of the hose (9) is provided with a sealing sleeve (12), and the sealing sleeve (12) is overlapped with the outer surface of the feed pipe (2).

4. The refrigerant filling and sealing structure according to claim 1, characterized in that: The outer surface of the feed pipe (2) is rotatably connected to a second valve (13), and the second valve (13) is located above the hose (9).

5. The refrigerant filling and sealing structure according to claim 1, characterized in that: The bottom of the filling bottle (1) is provided with a base (14), and the bottom of the base (14) is provided with a universal wheel (15).

6. The refrigerant filling and sealing structure according to claim 1, characterized in that: The opening diameter of the filling tube (3) is smaller than the diameter of the tube body, and the filling tube (3) overlaps the inner wall of the elastic pad (6).

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