Air conditioner refrigerant filling device

Abstract

An air conditioner refrigerant filling device belongs to the technical field of air conditioner maintenance equipment. The upper end of the four-way pipe is fixedly communicated with the pressure gauge, the left end of the four-way pipe is detachably communicated with the feeding pipe, the right end of the four-way pipe is provided with the valve, the lower end of the four-way pipe is fixedly communicated with one end of the discharging pipe, the other end of the discharging pipe is detachably connected with the matching head, the matching head is slidably sleeved with the stabilizing mechanism, and the four-way pipe is fixedly connected with one end face of the sliding block. The sliding block is in sliding connection with the clamping mechanism, and the other end face of the sliding block is detachably connected with the suction cup. By means of the unique structural design, the functions of flexibly adapting to different devices, stably fixing and accurately filling refrigerants are achieved, the universality and practicability of the device are improved, the safety and accuracy of the filling process are guaranteed, and the working efficiency is improved. A more convenient and efficient air conditioner refrigerant filling solution is provided for a user, and the air conditioner refrigerant filling device has a high market.

Description

Technical Field

[0001] This utility model belongs to the technical field of air conditioning maintenance equipment, specifically an air conditioning refrigerant charging device. Background Technology

[0002] With the improvement of living standards, household air conditioners have become an essential appliance in modern families. Their outdoor units are generally suspended and installed on the exterior walls of buildings to facilitate heat dissipation and save indoor space. However, when air conditioners need to be recharged due to refrigerant leaks or other reasons, this high-altitude suspended installation method brings many challenges.

[0003] In existing technologies, technicians must manually connect and tighten the refrigerant charging pipe to the inlet of the air conditioner's outdoor unit at high altitudes. Due to the complex environment of high-altitude operations, operators face limited space, high difficulty, and are prone to loose connections at the inlet, leading to refrigerant leaks or inefficient charging. Furthermore, the complex and variable airflow at high altitudes can cause loosening of the connection, even with an initial tight connection, due to strong airflow, further affecting the refrigerant charging effect and potentially posing safety hazards. Therefore, there is an urgent need to develop a refrigerant charging device that can assist in securing the pipe, solving the problems of unstable connections and inconvenient operation during refrigerant charging at high altitudes. Summary of the Invention

[0004] To address the problems existing in the background technology, this utility model provides an air conditioning refrigerant charging device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an air conditioning refrigerant charging device, characterized in that it includes a four-way pipe, a pressure gauge, an inlet pipe, an outlet pipe, a matching head, a slider, a suction cup, a stabilizing mechanism, and a clamping mechanism;

[0006] The upper end of the four-way pipe is fixedly connected to the pressure gauge, the left end of the four-way pipe is detachably connected to the feed pipe, the right end of the four-way pipe is equipped with a valve, the lower end of the four-way pipe is fixedly connected to one end of the discharge pipe, the other end of the discharge pipe is detachably connected to the matching head, the matching head is slidably fitted with a stabilizing mechanism, the four-way pipe is fixedly connected to one end face of the slider, the slider is slidably connected to the clamping mechanism, and the other end face of the slider is detachably connected to the suction cup.

[0007] The stabilizing mechanism includes a fixing ring, fastening bolts, two bent rods, two clamping plates, and two anti-slip racks.

[0008] The fixing ring is slidably mounted on the matching head. The fixing ring has a threaded hole, which is threadedly connected to the fastening bolt. The two sides of the fixing ring are respectively connected to the corresponding bent rods through torsion springs. The two bent rods are symmetrically arranged, and each bent rod is hinged to the corresponding clamping plate. An anti-slip toothed rack is fixed to the adjacent ends of the two clamping plates.

[0009] The clamping mechanism includes a sleeve plate, a telescopic plate, a spring, a first fixed clamp, a second fixed clamp, and two second anti-slip toothed racks;

[0010] The slider is provided with a sliding hole, the sleeve plate is slidably connected to the sliding hole, one end of the sleeve plate is provided with a sliding groove, the other end of the sleeve plate is fixedly connected to a fixing clamp 1, one end of the telescopic plate is slidably connected to the sliding groove, the other end of the telescopic plate is fixedly connected to a fixing clamp 2, the fixing clamp 2 is symmetrically arranged with the fixing clamp 1 and each adjacent end is provided with an anti-slip toothed rack 2, the spring is set in the sliding groove, one end of the spring is fixedly connected to the bottom surface of the sliding groove, and the other end of the spring is fixedly connected to the telescopic plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. Flexible adaptation to different equipment: The inlet pipe and the four-way pipe are detachably connected, and the appropriate inlet pipe can be replaced according to the interface specifications of the refrigerant storage tank; the outlet pipe and the matching head are also detachably connected, and the appropriate matching head can be replaced according to the injection port specifications of the air conditioner outdoor unit, so that the air conditioner refrigerant charging device can be adapted to a variety of different specifications of equipment and interfaces, greatly improving the versatility and practicality of the device.

[0013] 2. Excellent stability and fixation effect:

[0014] Clamping mechanism: By manually pulling the second fixed clamp, the telescopic plate slides and stretches the spring, increasing the distance between the second fixed clamp and the first fixed clamp. After placing the device at both ends of the air conditioner outdoor unit, the second fixed clamp is released, and the spring returns to its original position, so that the two fixed clamps firmly clamp the air conditioner outdoor unit. In addition, the anti-slip toothed racks set at the adjacent ends of the fixed clamps can increase the friction of the contact surface and effectively prevent the device from shifting during operation.

[0015] Suction cup assistance: If the surface material of the air conditioner outdoor unit is suitable for adsorption, the suction cup, which is detachably connected to the slider, can be adsorbed onto the air conditioner outdoor unit to further enhance the fixing effect; if the surface material is not suitable for adsorption, the suction cup can be removed, and the device can be fixed by relying solely on the clamping mechanism, which improves the applicability of the device to outdoor unit surfaces of different materials.

[0016] Stabilizing Mechanism: During the refrigerant charging stage, the bent rod of the stabilizing mechanism, under the elastic force of the torsion spring, drives the anti-slip rack on the clamp plate to fit tightly with the injection port, initially preventing the connection from loosening. Rotating the fastening bolt firmly fixes the fixing ring and the matching head, further stabilizing the position of the bent rod and the clamp plate, significantly increasing the stability of the connection between the matching head and the injection port, and ensuring that there will be no leakage or loosening of the connection during the refrigerant charging process.

[0017] 3. Precise refrigerant charging: A pressure gauge is installed at the upper end of the four-way pipe to display the internal pressure value in real time. Operators can judge the refrigerant charging status based on the pressure value. By rotating the valve stem of the manual shut-off valve at the right end of the four-way pipe, the opening and closing status and opening degree of the valve can be precisely controlled, thereby accurately adjusting the charging speed and amount of refrigerant, ensuring the safety and accuracy of the entire charging process.

[0018] In summary, this utility model, through its unique structural design, achieves flexible adaptation to different equipment, stable fixation, and precise refrigerant charging. These beneficial effects not only improve the versatility and practicality of the device but also ensure the safety and accuracy of the charging process, providing users with a more convenient and efficient air conditioning refrigerant charging solution, and thus has a high market potential. Attached Figure Description

[0019] Figure 1 This is a front view of the present invention;

[0020] Figure 2 This is a schematic diagram of the stabilizing mechanism structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the clamping mechanism structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the usage state of this utility model. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0024] This embodiment describes an air conditioning refrigerant charging device, including a four-way pipe 1, a pressure gauge 2, an inlet pipe 3, an outlet pipe 4, a matching head 5, a slider 11, a suction cup 12, a stabilizing mechanism, and a clamping mechanism.

[0025] The upper end of the four-way pipe 1 is connected and fixed to the pressure gauge 2. The left end of the four-way pipe 1 is detachably connected to the feed pipe 3. The right end of the four-way pipe 1 is equipped with a valve. The lower end of the four-way pipe 1 is connected and fixed to one end of the discharge pipe 4. The other end of the discharge pipe 4 is detachably connected to the matching head 5. A stabilizing mechanism is slidably sleeved on the matching head 5. The four-way pipe 1 is fixedly connected to one end face of the slider 11. The slider 11 is slidably connected to the clamping mechanism. The other end face of the slider 11 is detachably connected to the suction cup 12.

[0026] The stabilizing mechanism includes a fixing ring 6, a fastening bolt 10, two bent rods 7, two clamping plates 8, and two anti-slip racks 9;

[0027] The fixing ring 6 is slidably mounted on the matching head 5. The fixing ring 6 has a threaded hole, which is threadedly connected to the fastening bolt 10. The two sides of the fixing ring 6 are respectively connected to the corresponding bent rods 7 through torsion springs. The two bent rods 7 are symmetrically arranged, and each bent rod 7 is hinged to the corresponding clamping plate 8. Anti-slip toothed racks 9 are fixed at the adjacent ends of the two clamping plates 8.

[0028] The clamping mechanism includes a sleeve plate 13, a telescopic plate 14, a spring 15, a first fixed clamp 16, a second fixed clamp 17, and two second anti-slip toothed racks 18.

[0029] The slider 11 is provided with a sliding hole, the sleeve 13 is slidably connected to the sliding hole, one end of the sleeve 13 is provided with a sliding groove, and the other end of the sleeve 13 is fixedly connected to the first fixing clamp 16. One end of the telescopic plate 14 is slidably connected to the sliding groove, and the other end of the telescopic plate 14 is fixedly connected to the second fixing clamp 17. The second fixing clamp 17 and the first fixing clamp 16 are symmetrically arranged and each adjacent end is provided with a second anti-slip toothed rack 18. The spring 15 is provided in the sliding groove, one end of the spring 15 is fixedly connected to the bottom surface of the sliding groove, and the other end of the spring 15 is fixedly connected to the telescopic plate 14.

[0030] The air conditioning refrigerant charging device, through the coordinated operation of its various components, achieves flexible adaptation to different equipment, stable fixation, and precise refrigerant charging. Its specific working principle is as follows:

[0031] 1. Preparation stage: The feed pipe 3 and the four-way pipe 1 can be detachably connected by threaded connection or quick coupling. Select the appropriate feed pipe 3 according to the interface specifications of the refrigerant liquid tank. When using threaded connection, a sealing ring needs to be installed between the external thread at the end of the feed pipe 3 and the internal thread at the left end of the four-way pipe 1. Tighten by rotating. The tightening effect of the thread and the sealing performance of the sealing ring will double ensure the sealing of the connection. Connect one end of the feed pipe 3 to the liquid tank so that the refrigerant can flow smoothly into the four-way pipe 1. During this process, the manual shut-off valve at the right end of the four-way pipe 1 should be kept closed to effectively prevent refrigerant leakage.

[0032] II. Fixing Stage: First, clean one side of the outdoor unit 19 of the household air conditioner to remove dust. When operating the clamping mechanism, manually pull the second fixing clamp 17, causing the connected telescopic plate 14 to slide within the rectangular groove of the sleeve plate 13, thereby stretching the spring 15 and increasing the distance between the second fixing clamp 17 and the first fixing clamp 16. Place this clamping mechanism at both ends of the outdoor unit 19. When the first fixing clamp 16 is tightly attached to one end face of the outdoor unit 19 and the second fixing clamp 17 is attached to the other end face, release the second fixing clamp 17. At this time, the spring 15 returns to its original position using its elasticity, pulling the telescopic plate 14 to make the second fixing clamp 17 and the first fixing clamp 16 close together. 6. Securely clamp the outdoor unit 19 of the air conditioner. The two anti-slip toothed strips 18 set at the adjacent ends of the fixing clip 16 and the fixing clip 17 increase the friction of the contact surface and effectively prevent the device from shifting during operation. If the surface material of the outdoor unit 19 is suitable for adsorption, such as metal, the suction cup 12, which is detachably connected to the slider 11, can be adsorbed onto the outdoor unit 19 by means of snap-fit ​​connection to further enhance the fixing effect. If the surface material is not suitable for adsorption, such as a rough plastic shell, the suction cup 12 can be removed and the device can be fixed by the clamping mechanism alone, thereby improving the applicability of the device to outdoor unit surfaces of different materials.

[0033] III. Refrigerant Charging Stage: Open the refrigerant injection port of the outdoor unit 19. The discharge pipe 4 and the matching head 5 can be detachably connected by threaded connection or plug-in connection. Select the appropriate matching head 5 according to the specifications of the outdoor unit's injection port and accurately connect the matching head 5 to the injection port. Then, operate the stabilizing mechanism to slide the fixing ring 6 onto the matching head 5 and adjust it to the appropriate position. At this time, under the action of the torsion spring, the bent rod 7 drives the anti-slip rack 9 on the clamping plate 8 to fit tightly with the injection port, initially preventing the connection from loosening. Next, rotate the fastening bolt 10 so that it screws into the threaded hole of the fixing ring 6. Through the fastening action of the fastening bolt 10 on the fixing ring 6, the fixing ring 6 and the matching head 5 are firmly fixed, further stabilizing the position of the bent rod 7 and the clamping plate 8, significantly increasing the stability of the connection between the matching head 5 and the injection port, and ensuring that there will be no leakage or loosening of the connection during the refrigerant charging process.

[0034] IV. Refrigerant Charging Control Stage: During the charging process, the pressure gauge 2, which is connected to the upper end of the four-way pipe 1 by a thread and fixed with a sealing gasket, displays the internal pressure value in real time. The operator judges the refrigerant charging status based on the pressure value and controls the opening and closing status and opening degree of the valve by rotating the valve stem of the manual shut-off valve at the right end of the four-way pipe 1, thereby accurately adjusting the charging speed and amount of refrigerant to ensure the safety and accuracy of the entire charging process.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An air conditioning refrigerant charging device, characterized in that: It includes a four-way pipe (1), a pressure gauge (2), a feed pipe (3), a discharge pipe (4), a matching head (5), a slider (11), a suction cup (12), a stabilizing mechanism, and a clamping mechanism; The upper end of the four-way pipe (1) is connected and fixed to the pressure gauge (2), the left end of the four-way pipe (1) is detachably connected to the feed pipe (3), the right end of the four-way pipe (1) is provided with a valve, the lower end of the four-way pipe (1) is connected and fixed to one end of the discharge pipe (4), the other end of the discharge pipe (4) is detachably connected to the matching head (5), the matching head (5) is slidably fitted with a stabilizing mechanism, the four-way pipe (1) is fixedly connected to one end face of the slider (11), the slider (11) is slidably connected to the clamping mechanism, and the other end face of the slider (11) is detachably connected to the suction cup (12).

2. The air conditioning refrigerant charging device according to claim 1, characterized in that: The stabilizing mechanism includes a fixing ring (6), a fastening bolt (10), two bent rods (7), two clamping plates (8), and two anti-slip toothed racks (9). The fixing ring (6) is slidably mounted on the matching head (5). The fixing ring (6) has a threaded hole, which is threadedly connected to the fastening bolt (10). The two sides of the fixing ring (6) are respectively connected to the corresponding bent rods (7) by torsion springs. The two bent rods (7) are symmetrically arranged. Each bent rod (7) is hinged to the corresponding clamping plate (8). The adjacent ends of the two clamping plates (8) are fixed with anti-slip toothed racks (9).

3. The air conditioning refrigerant charging device according to claim 1, characterized in that: The clamping mechanism includes a sleeve plate (13), a telescopic plate (14), a spring (15), a first fixed clamp (16), a second fixed clamp (17), and two second anti-slip toothed racks (18). The slider (11) is provided with a sliding hole, the sleeve (13) is slidably connected to the sliding hole, one end of the sleeve (13) is provided with a sliding groove, the other end of the sleeve (13) is fixedly connected to the first fixing clamp (16), one end of the telescopic plate (14) is slidably connected to the sliding groove, the other end of the telescopic plate (14) is fixedly connected to the second fixing clamp (17), the second fixing clamp (17) and the first fixing clamp (16) are symmetrically arranged and adjacent ends are provided with the second anti-slip toothed rack (18), the spring (15) is set in the sliding groove, one end of the spring (15) is fixedly connected to the bottom surface of the sliding groove, and the other end of the spring (15) is fixedly connected to the telescopic plate (14).

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