Refrigerant recovery device for maintenance of refrigeration equipment

Abstract

The utility model relates to the technical field of refrigeration equipment maintenance, in particular to a refrigeration equipment maintenance refrigerant recovery device which comprises a protective shell, a recovery barrel is rotatably matched with the lower side of the inner wall of the protective shell, a plurality of partition cavities are formed in the upper side of the recovery barrel, and a liquid inlet is formed in the upper side of the protective shell; a connecting pipe is arranged on the inner wall of the liquid inlet; and the upper side of the recycling barrel is fixedly connected with a rotating shaft extending to the upper side of the protective shell. According to the cooling liquid storage device, the recycling barrel and the spacing cavities are arranged, the cooling liquid storage device can be connected with an external refrigerant outlet through the connecting pipe, the cooling liquid can be conveyed into the spacing cavities through the connecting pipe, and when different cooling liquids are stored, the recycling barrel can be rotated to enable the different spacing cavities to be aligned with the liquid inlet; and when the upper portion of the recycling barrel abuts against the upper side of the inner wall of the protective shell, different cooling liquid can be stored separately, the multiple cooling liquid can be recycled conveniently, and the application range of the cooling liquid recycling device is widened.

Description

Technical Field

[0001] This application relates to the technical field of refrigeration equipment repair, and in particular to a refrigerant recovery device for refrigeration equipment repair. Background Technology

[0002] Refrigeration equipment maintenance refers to the process of inspecting, diagnosing, repairing, or replacing parts of a refrigeration system to ensure its normal operation and high efficiency. During maintenance, it is usually necessary to extract and recover the internal refrigerant for temporary storage, so that it can be reused after the maintenance is completed.

[0003] A search revealed Chinese patent application CN202420176148.X, which discloses a refrigerant recovery device for refrigeration equipment maintenance. The device includes a rotating ring, a fixed block 1 rotatably connected to the rotating ring, a clamping plate slidably connected inside the fixed block 1, baffles fixedly connected to both ends of the clamping plate, a fixed block 2 slidably connected to the outer wall of the clamping plate, a fixed ring rotatably connected to the outer wall of the fixed block 2, and the outer wall of the fixed ring slidably connected to the inner wall of the rotating ring. A flexible hose is fixedly connected to the inner wall of the fixed ring, and a protective shell is fixedly connected to the outer wall of the rotating ring. The outer wall of the protective shell rotatably connects to the outer wall of the flexible hose. In this invention, the rotating ring drives the fixed block 1, causing the clamping plate to slide between the fixed block 1 and the fixed block 2. Multiple clamping plates enhance the stability of the flexible hose and pipe, ensuring no leakage during refrigerant extraction, thus adapting to different refrigerant pipe specifications and stably fixing the refrigerant pipe.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: In practical applications, when multiple refrigerants are present in a single device, such as in complex industrial refrigeration systems, different refrigerants may be used to meet different temperature requirements or operate in different system components. For example, R22 (dichlorofluoromethane) is a commonly used refrigerant suitable for residential and commercial air conditioning systems, while R134A is an environmentally friendly alternative to R12 used in automotive air conditioning systems. Furthermore, R454C is a refrigerant with low global warming potential (GWP) and can be used to replace R404A and R22. In some complex refrigeration systems, cascade refrigeration cycles may be used, making it impossible to differentiate and recycle different refrigerants for storage, leading to inconvenience in the recycling of complex equipment. Utility Model Content

[0005] In order to solve the problems mentioned in the background art, this application provides a refrigerant recovery device for refrigeration equipment maintenance.

[0006] This application provides a refrigerant recovery device for refrigeration equipment maintenance, which adopts the following technical solution: it includes a protective shell, a recovery tank rotatably fitted on the lower inner wall of the protective shell, multiple partition cavities opened on the upper side of the recovery tank, a liquid inlet opened on the upper side of the protective shell, and a connecting pipe provided on the inner wall of the liquid inlet.

[0007] A rotating rod extending to the upper side of the protective shell is fixedly connected to the upper side of the recycling bin. A cross indicator is fixedly connected to the upper side of the rotating rod. A limiting block is fixedly connected to the upper side of the protective shell. A limiting cover that mates with the cross indicator is slidably fitted on the inner wall of the limiting block. A spring is provided between the limiting cover and the limiting block. A movable mechanism is provided on the lower side of the protective shell.

[0008] Optionally, the portable mechanism includes a tightening frame fixedly connected to the lower side of the protective shell, a bidirectional lead screw rotatably fitted on the inner wall of the tightening frame, a push block threaded onto the bidirectional lead screw and slidably fitted on the inner wall of the tightening frame, a support rod fixedly connected to both sides of the tightening frame, a flipping block rotatably fitted on the support rod and in contact with the push block, a tension spring fixedly connected between the flipping block and the tightening frame, and rollers rotatably fitted on one side of the multiple flipping blocks.

[0009] Optionally, a plurality of load-bearing rods are fixedly connected to the lower side of the recycling bin, and anti-slip discs are fixedly connected to the lower ends of the plurality of load-bearing rods.

[0010] Optionally, a pull rod is fixedly connected to the upper side of the limiting cover, and a force button is fixedly connected to the upper side of the pull rod. The upper end of the pull rod extends through to the upper end of the limiting block and is slidably engaged.

[0011] Optionally, an observation port is provided on one side of the inner wall of each of the multiple spacer cavities, and a transparent plate is fixedly connected to the inner wall of each observation port.

[0012] Optionally, each of the recycling bins has a drain outlet on one side, and a drain valve is fixedly connected to the inner wall of the drain outlet.

[0013] Optionally, the outer side of the protective shell is provided with multiple openings, which cooperate with multiple observation ports.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] 1. This utility model, by setting up a recovery tank and a partition cavity, can connect to an external refrigerant outlet through a connecting pipe, and transport the refrigerant into the interior of the partition cavity through the connecting pipe. When storing different coolants, the recovery tank can be rotated to align the different partition cavities with the liquid inlet. When the top of the recovery tank abuts against the upper side of the inner wall of the protective shell, different coolants can be stored separately, realizing the convenience of recovering multiple coolants and improving its applicability.

[0016] 2. This utility model, by setting up a convenient movement mechanism, can realize the movement of two push blocks in a similar direction by rotating a bidirectional lead screw, pressing against two flip blocks, so that the rollers contact the ground and support the protective shell. The rolling of the rollers improves the ease of movement after storing liquid, avoids the inconvenience of movement caused by excessive weight due to internal cooling, and improves the ease of movement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the three-dimensional cross-section of the tightening frame in an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the three-dimensional cross-section of the protective shell in an embodiment of this application;

[0020] Figure 4 This is an embodiment of the present application. Figure 3 Enlarged structural diagram at point A in the middle.

[0021] Reference numerals: 1. Protective outer shell; 2. Recycling bin; 3. Partition cavity; 4. Liquid inlet; 5. Connecting pipe; 6. Rotating rod; 8. Cross indicator; 9. Limiting block; 10. Limiting cover; 11. Spring; 12. Portable mechanism; 121. Tightening frame; 122. Two-way lead screw; 123. Pushing block; 124. Support rod; 125. Flipping block; 126. Tension spring; 127. Roller; 13. Load-bearing rod; 14. Anti-slip disc; 15. Pull-out rod; 16. Force button; 17. Observation port; 18. Transparent plate; 19. Drain outlet; 20. Drain valve; 21. Unfolding opening. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 —4 provides further detailed description of this application.

[0023] This application discloses a refrigerant recovery device for refrigeration equipment maintenance. For example... Figure 1 As shown, it includes a protective shell 1, a recycling bin 2 rotatably fitted on the lower inner wall of the protective shell 1, multiple partition cavities 3 opened on the upper side of the recycling bin 2, a liquid inlet 4 opened on the upper side of the protective shell 1, and a connecting pipe 5 provided on the inner wall of the liquid inlet 4.

[0024] Please see Figure 1 The outer side of the protective shell 1 is provided with multiple openings 21, which cooperate with multiple observation ports 17. Through the openings 21, observation can be made through the observation ports 17 without affecting the field of vision.

[0025] Please see Figure 3Each of the multiple partition cavities 3 has an observation port 17 on one side of its inner wall. Each of the multiple observation ports 17 has a transparent plate 18 fixedly connected to its inner wall. The internal capacity of the partition cavity 3 can be easily observed through the transparent plate 18 in the observation port 17.

[0026] Please see Figure 1 Multiple load-bearing rods 13 are fixedly connected to the lower side of the recycling bin 2. Anti-slip discs 14 are fixedly connected to the lower ends of the multiple load-bearing rods 13. The load-bearing rods 13 are used to support the protective shell 1. The anti-slip discs 14 are in contact with the ground, which can improve stability.

[0027] Please see Figure 3 Each side of the recycling bin 2 is provided with a drain port 19, and a drain valve 20 is fixedly connected to the inner wall of the drain port 19. By controlling the drain valve 20 in the drain port 19, the liquid inside the recycling bin 2 can be discharged easily.

[0028] A rotating rod 6 extending to the upper side of the protective shell 1 is fixedly connected to the upper side of the recycling bin 2. A cross indicator 8 is fixedly connected to the upper side of the rotating rod 6. A limiting block 9 is fixedly connected to the upper side of the protective shell 1. A limiting cover 10 that cooperates with the cross indicator 8 is slidably fitted on the inner wall of the limiting block 9. A spring 11 is provided between the limiting cover 10 and the limiting block 9. A movable mechanism 12 is provided on the lower side of the protective shell 1.

[0029] Please see Figure 2 The portable mechanism 12 includes a tightening frame 121 fixedly connected to the lower side of the protective housing 1, a bidirectional lead screw 122 rotatably fitted on the inner wall of the tightening frame 121, a push block 123 threadedly fitted on the bidirectional lead screw 122 and slidably fitted on the inner wall of the tightening frame 121, a support rod 124 fixedly connected to both sides of the tightening frame 121, a flipping block 125 rotatably fitted on the support rod 124 and in contact with the push block 123, and a fixed connection between the flipping block 125 and the tightening frame 121. The tension spring 126 between the multiple flip blocks 125 and the roller 127 rotatably fitted on one side of the multiple flip blocks 125, when not in use, pulls the flip blocks 125 to fit against the push blocks 123 by the tension spring 126, so that they will not contact the ground. When movement is required, the two push blocks 123 are moved in the same direction by rotating the bidirectional screw 122, which squeezes the flip blocks 125, so that the roller 127 on the flip blocks 125 contacts the ground. The roller 127 can increase the convenience of movement.

[0030] Please see Figure 4 A pull rod 15 is fixedly connected to the upper side of the limiting cover 10, and a force button 16 is fixedly connected to the upper side of the pull rod 15. The upper end of the pull rod 15 extends through to the upper end of the limiting block 9 and is slidably engaged. The pull rod 15 can be easily pulled by holding the force button 16. When it is necessary to separate the limiting cover 10 from the cross indicator 8, the cross indicator 8 can be operated by pulling the pull rod 15 upward.

[0031] The implementation principle of the refrigerant recovery device for refrigeration equipment maintenance in this application embodiment is as follows: In use, the anti-slip plate 14 under the load-bearing rod 13 is first placed and fixed in the corresponding position. Then, the connecting pipe 5 is connected to the external refrigerant outlet and transported to the interior of the partition cavity 3 through the connecting pipe 5. When storing different coolants, the recovery bucket 2 can be rotated to align the different partition cavities 3 with the liquid inlet 4. When the top of the recovery bucket 2 abuts against the upper side of the inner wall of the protective shell 1, different coolants can be stored separately, realizing the convenience of recovering multiple coolants and improving its applicability.

[0032] When the recycling bin 2 is rotated, the limiting cover 10 is placed on the upper side of the fixed cross indicator 8 to limit the position of the recycling bin 2, so as to prevent the recycling bin 2 from rotating too much or too little inside the protective shell 1, which would affect the alignment between the liquid inlet 4 and the partition cavity 3.

[0033] After the coolant has been collected, the two push blocks 123 can be moved in the same direction by rotating the two-way lead screw 122, pressing against the two flip blocks 125, so that the rollers 127 contact the ground and support the protective shell 1. The rolling of the rollers 127 improves the ease of movement after the liquid is stored, and avoids the inconvenience of movement caused by the overall weight due to the internal cooling load.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A refrigerant recovery device for refrigeration equipment maintenance, comprising a protective housing (1), characterized in that: The lower inner wall of the protective shell (1) is rotatably fitted with a recycling bin (2), and the upper side of the recycling bin (2) is provided with multiple partition cavities (3). The upper side of the protective shell (1) is provided with a liquid inlet (4), and the inner wall of the liquid inlet (4) is provided with a connecting pipe (5). A rotating rod (6) extending to the upper side of the protective shell (1) is fixedly connected to the upper side of the recycling bin (2). A cross indicator (8) is fixedly connected to the upper side of the rotating rod (6). A limiting block (9) is fixedly connected to the upper side of the protective shell (1). A limiting cover (10) that cooperates with the cross indicator (8) is slidably fitted on the inner wall of the limiting block (9). A spring (11) is provided between the limiting cover (10) and the limiting block (9). A movable mechanism (12) is provided on the lower side of the protective shell (1).

2. The refrigerant recovery device for refrigeration equipment maintenance according to claim 1, characterized in that: The portable mechanism (12) includes a tightening frame (121) fixedly connected to the lower side of the protective shell (1), a bidirectional lead screw (122) rotatably fitted on the inner wall of the tightening frame (121), a drive pushing block (123) threadedly fitted on the bidirectional lead screw (122) and slidably fitted on the inner wall of the tightening frame (121), a support rod (124) fixedly connected to both sides of the tightening frame (121), a flipping block (125) rotatably fitted on the support rod (124) and in contact with the drive pushing block (123), a tension spring (126) fixedly connected between the flipping block (125) and the tightening frame (121), and a roller (127) rotatably fitted on one side of the multiple flipping blocks (125).

3. The refrigerant recovery device for refrigeration equipment maintenance according to claim 1, characterized in that: The lower side of the recycling bin (2) is fixedly connected to multiple load-bearing rods (13), and the lower ends of the multiple load-bearing rods (13) are fixedly connected to anti-slip discs (14).

4. A refrigerant recovery device for refrigeration equipment maintenance according to claim 1, characterized in that: A pull rod (15) is fixedly connected to the upper side of the limiting cover (10), and a force button (16) is fixedly connected to the upper side of the pull rod (15). The upper end of the pull rod (15) extends through to the upper end of the limiting block (9) and slides in fit.

5. A refrigerant recovery device for refrigeration equipment maintenance according to claim 1, characterized in that: An observation port (17) is provided on one side of the inner wall of each of the multiple spacer cavities (3), and a transparent plate (18) is fixedly connected to the inner wall of each of the multiple observation ports (17).

6. A refrigerant recovery device for refrigeration equipment maintenance according to claim 1, characterized in that: Each of the recycling bins (2) has a drain port (19) on one side, and a drain valve (20) is fixedly connected to the inner wall of the drain port (19).

7. A refrigerant recovery device for refrigeration equipment maintenance according to claim 5, characterized in that: The outer side of the protective shell (1) is provided with multiple openings (21), and the multiple openings (21) cooperate with multiple observation ports (17).

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