Refrigerant filling start-stop device with pressure monitoring function

Abstract

The utility model discloses a refrigerant filling start-stop device with a pressure monitoring function, which comprises a pressure filling valve, and a hanging component for hanging the pressure filling valve is arranged at the upper end of the pressure filling valve; the hanging assembly comprises a hanging rope fixedly installed at the upper end of the pressure filling valve, the upper end of the hanging rope is fixedly connected with a limiting seat, and a limiting groove is formed in one side of the limiting seat. The clamping shaft is automatically reset and clamped after the transmission plate is loosened, multi-angle stable clamping at the fixed position is formed, the device is prevented from shaking or falling off in the hanging process, and the hanging convenience and safety of the pressure filling valve in the refrigerant filling process are effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of refrigerant filling devices, specifically a refrigerant filling start-stop device with pressure monitoring. Background Technology

[0002] In the field of refrigerant filling technology, refrigerant filling start-stop devices with pressure monitoring are key equipment for achieving precise control of refrigerant filling volume. By integrating pressure monitoring functions, they can provide real-time feedback of pressure data during the filling process, ensuring the safety and efficiency of filling operations.

[0003] During refrigerant charging, the pressure charging valve needs to be temporarily secured to facilitate manual operations such as pipe connection and parameter adjustment. Existing devices often use simple hooks or straps for support, which makes it difficult to achieve multi-point clamping and stable positioning. This makes the device prone to falling due to external impacts or vibrations, and some support structures are susceptible to jamming or loosening, posing safety hazards. Utility Model Content

[0004] The purpose of this invention is to provide a refrigerant charging start-stop device with pressure monitoring to solve the technical problem that the pressure charging valve cannot be stably fixed during the refrigerant charging process.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a refrigerant charging start-stop device with pressure monitoring, including a pressure charging valve, wherein the upper end of the pressure charging valve is provided with a holding component for holding the pressure charging valve.

[0006] The hanging assembly includes a hanging rope fixedly installed on the upper end of the pressure filling valve. A limit seat is fixedly connected to the upper end of the hanging rope. A limit groove is opened on one side of the limit seat. A return spring is fixedly connected to the other side of the limit seat. A transmission plate is fixedly connected to the other end of the return spring. Two symmetrically arranged sleeves are fixedly connected to one side of the transmission plate. A symmetrically arranged extrusion block is fixedly connected to the inner wall of each of the two sleeves. A symmetrically arranged transmission rod is rotatably connected to the upper end of the limit seat. A retaining shaft is fixedly connected to one end of each transmission rod. A symmetrically arranged extrusion groove is opened on the other end of each transmission rod.

[0007] As a preferred embodiment of this utility model, the extrusion groove has an inclined structure, and the extrusion block is slidably connected to the extrusion groove.

[0008] As a preferred embodiment of this utility model, the limiting seat has a rectangular structure.

[0009] As a preferred embodiment of this utility model, the limiting groove has a cross-shaped structure, and the corners of the limiting groove are chamfered.

[0010] As a preferred embodiment of this utility model, the hanging rope is made of braided tape, and the two ends of the hanging rope are fixedly connected to the upper end of the pressure filling valve and the lower end of the limit seat by injection molding or hot pressing.

[0011] Compared with the prior art, the beneficial effects of the refrigerant filling start-stop device with pressure monitoring of this utility model are as follows: through the cooperation of the limiting seat, the locking shaft and the return spring, the limiting groove is accurately inserted into the fixed position. By utilizing the sliding transmission of the squeezing block and the inclined squeezing groove, the locking shaft is automatically reset and locked after the transmission plate is released, forming a multi-angle stable locking of the fixed position, avoiding the device from shaking or falling off during the suspension process, and effectively improving the convenience and safety of the pressure filling valve hanging during the refrigerant filling process. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only examples of embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the limiting seat in the embodiment of this utility model. Figure 1 ;

[0015] Figure 3 This is a schematic diagram of the structure of the limiting seat in the embodiment of this utility model. Figure 2 ;

[0016] Figure 4 This is a schematic diagram of the transmission rod in an embodiment of the present utility model;

[0017] Figure 5 This is a schematic diagram of the internal structure of the sleeve in an embodiment of this utility model.

[0018] Reference numerals in the attached drawings: 1. Pressure filling valve; 2. Hanging rope; 3. Limit seat; 4. Limit groove; 5. Return spring; 6. Transmission plate; 7. Sleeve; 8. Extrusion block; 9. Transmission rod; 10. Locking shaft; 11. Extrusion groove. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0020] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0021] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present invention should be understood according to the specific circumstances.

[0022] See Figure 1-5 As shown, the refrigerant charging start-stop device with pressure monitoring in this embodiment of the present invention includes a pressure charging valve 1, and a holding component for holding the pressure charging valve 1 is provided on the upper end of the pressure charging valve 1.

[0023] The hanging assembly includes a hanging rope 2 fixedly installed on the upper end of the pressure filling valve 1. A limiting seat 3 is fixedly connected to the upper end of the hanging rope 2. A limiting groove 4 is opened on one side of the limiting seat 3. A return spring 5 is fixedly connected to the other side of the limiting seat 3. A transmission plate 6 is fixedly connected to the other end of the return spring 5. Two symmetrically arranged sleeves 7 are fixedly connected to one side of the transmission plate 6. A symmetrically arranged extrusion block 8 is fixedly connected to the inner wall of each of the two sleeves 7. A symmetrically arranged transmission rod 9 is rotatably connected to the upper end of the limiting seat 3. A retaining shaft 10 is fixedly connected to one end of each transmission rod 9. A symmetrically arranged extrusion groove 11 is opened on the other end of each transmission rod 9.

[0024] The extrusion groove 11 has an inclined structure, and the extrusion block 8 is slidably connected to the extrusion groove 11.

[0025] When in use, hold the limiting seat 3 and press the transmission plate 6. The pressed transmission plate 6 then drives the sleeve 7 to move along the transmission rod 9. At the same time, the sleeve 7 drives the extrusion block 8 to extrude the extrusion groove 11 opened on the transmission rod 9. The extruded transmission rod 9 then drives the locking shaft 10 to rotate. At this time, the two locking shafts 10 are horizontal. The limiting seat 3 is inserted into the locking position through the limiting groove 4. After insertion, release the pressed transmission plate 6. The return spring 5 then drives the transmission plate 6 to reset, which in turn drives the two transmission rods 9 and the locking shaft 10 to reset. The reset locking shaft 10 then performs locking.

[0026] The limiting seat 3 has a rectangular structure, the limiting groove 4 has a cross-shaped structure, the corners of the limiting groove 4 are chamfered, and the hanging rope 2 is made of braided tape. The two ends of the hanging rope 2 are fixedly connected to the upper end of the pressure filling valve 1 and the lower end of the limiting seat 3 by injection molding or hot pressing.

[0027] In use, the limiting seat 3 adopts a rectangular structure with a width of 1cm to 1.5cm. The chamfered corners of the cross-shaped limiting groove 4 can be more smoothly inserted and fixed, reducing jamming or damage caused by edge friction. The braided hanging rope 2 is fixed by injection molding or hot pressing, which has higher connection strength and can reduce the risk of breakage at the connection between the hanging rope 2 and the limiting seat 3 and the pressure filling valve 1, ensuring that the device is stably suspended during the refrigerant filling process.

[0028] The foregoing has shown and described the basic principles of the present invention. The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Any modifications, equivalent substitutions, and improvements made within the scope of the present invention without departing from the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A refrigerant charging start / stop device with pressure monitoring, comprising a pressure charging valve (1), characterized in that: The upper end of the pressure filling valve (1) is provided with a holding component for holding the pressure filling valve (1); The hanging assembly includes a hanging rope (2) fixedly installed on the upper end of the pressure filling valve (1). The upper end of the hanging rope (2) is fixedly connected to a limiting seat (3). A limiting groove (4) is opened on one side of the limiting seat (3). A return spring (5) is fixedly connected to the other side of the limiting seat (3). A transmission plate (6) is fixedly connected to the other end of the return spring (5). Two sleeves (7) are fixedly connected to one side of the transmission plate (6). A pressing block (8) is fixedly connected to the inner wall of each of the two sleeves (7). A transmission rod (9) is rotatably connected to the upper end of the limiting seat (3). A retaining shaft (10) is fixedly connected to one end of each transmission rod (9). A pressing groove (11) is opened on the other end of each transmission rod (9).

2. The refrigerant charging start-stop device with pressure monitoring according to claim 1, characterized in that: The extrusion groove (11) is an inclined structure, and the extrusion block (8) is slidably connected to the extrusion groove (11).

3. The refrigerant charging start-stop device with pressure monitoring according to claim 1, characterized in that: The limiting seat (3) has a rectangular structure.

4. The refrigerant charging start-stop device with pressure monitoring according to claim 1, characterized in that: The limiting groove (4) has a cross-shaped structure, and the corners of the limiting groove (4) are chamfered.

5. The refrigerant charging start-stop device with pressure monitoring according to claim 1, characterized in that: The hanging rope (2) is made of braided tape, and the two ends of the hanging rope (2) are fixedly connected to the upper end of the pressure filling valve (1) and the lower end of the limit seat (3) by injection molding or hot pressing.

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