Automobile air conditioner fluorine-free replacement valve core wrench

Abstract

The utility model provides a kind of automobile air conditioner exempts from fluorine replacement valve core wrench, it is related to valve core wrench technical field, including wrench main part, the front end of wrench main part is provided with protection assembly, the protection assembly includes sight glass, the outer surface of the sight glass is provided with protective cover, the both sides of the protective cover are all set up with slot. In the utility model, when using wrench main part to disassemble valve, gas flow can be observed by sight glass, and protective cover is installed to realize the protection of sight glass, avoid the problem that it is inconvenient to observe due to serious abrasion, protective cover also has quick disassembly function, when the surface of protective cover is seriously abraded and needs to be disassembled and replaced, handle can be pulled to both sides simultaneously, push rod and push plate are driven by handle to extrude spring, and insert block is extracted from the position of slot, then protective cover is pulled outward, and protective cover is removed to complete quick disassembly immediately, reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of valve core wrench technology, and in particular to a valve core replacement wrench for automotive air conditioning systems that does not require refrigerant release. Background Technology

[0002] The car air conditioning valve core wrench is a professional tool used to replace the valve core of a car air conditioning unit. The surface is usually made of pure copper or other materials. Pure copper is not only durable, but also effectively prevents rust and corrosion, extending the tool's service life.

[0003] Traditional valve core replacement requires releasing the refrigerant from the air conditioning system, which not only wastes refrigerant but also increases maintenance costs and time. However, a refrigerant-free valve core replacement wrench allows for valve core replacement without releasing refrigerant, avoiding refrigerant loss, reducing maintenance costs, and offering a reasonable design and simple operation. It allows for quick and smooth opening and closing of the valves, greatly improving maintenance efficiency. Maintenance personnel can complete the valve core replacement work without complicated procedures.

[0004] However, existing wrenches cannot observe the flow of internal gas or determine whether the socket is connected to the valve during use, making it unclear whether the valve has been removed, which is inconvenient. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing wrenches cannot be used to observe the flow of internal gas and cannot determine whether the socket is connected to the valve, which makes it unclear whether the valve has been removed and causes inconvenience during use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a wrench for replacing valve cores of an automotive air conditioner without releasing refrigerant, comprising a wrench body, a protective component at the front end of the wrench body, the protective component including a sight glass, a protective cover on the outer surface of the sight glass, slots on both sides of the protective cover, guide blocks connected to the upper and lower ends of the protective cover, fixing blocks connected to both sides of the front end of the wrench body, two sets of springs inside the fixing blocks, push rods inserted into the interior of the two sets of springs, push plates connected to the front ends of the two sets of push rods, insert blocks connected to the front ends of the push plates, and handles connected to the rear ends of the two sets of push rods.

[0007] Furthermore, the surface of the insert has a bevel, and the position and size of the insert match the position and size of the slot. The bevel design allows the insert to be quickly inserted into the slot, and when the slot is inserted, the protective cover can be fixed.

[0008] Furthermore, the insert and the slot form an interlocking connection, and the wrench body is provided with a guide groove at the position that matches the guide block. By determining the position of the guide block and the guide groove, positional deviation can be avoided, thus improving the convenience of installation.

[0009] Furthermore, the push plate and the spring form an elastic structure, and the design of the elastic structure can automatically push the plug into the slot to complete the installation.

[0010] Furthermore, a convenient disassembly assembly is connected to one outer surface of the wrench body. The convenient disassembly assembly includes a slide rail, and a light is slidably connected inside the slide rail. The convenient disassembly assembly can be used for illumination by the light, and the light can be installed or removed when the hand-tightening bolt is turned.

[0011] Furthermore, each of the bottom front ends of the lighting lamp is connected to a sleeve, and a hand-tightening bolt is inserted into the inside of the sleeve, which can serve to fix the hand-tightening bolt.

[0012] Furthermore, a limiting block is fixedly connected to the surface of the hand-tightening bolt. The outer surface of the limiting block is in contact with the inner wall of the sleeve. By sliding the limiting block on the sleeve, the problem of the hand-tightening bolt being lost after disassembly can be avoided.

[0013] Furthermore, the position and size of the hand-tightening bolt match the position and size of the threaded hole. After the hand-tightening bolt passes through the sleeve, it forms a threaded connection with the threaded hole. The threaded connection design allows for quick and easy fixing of the lighting lamp.

[0014] Furthermore, the position of the slider of the lighting lamp matches that of the slide rail, and the sliding connection facilitates installation and fixation.

[0015] Furthermore, the slide rail is T-shaped, which facilitates the fixing of two sets of hand-tightened bolts.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] 1. In this utility model, when using the wrench body to disassemble the valve, the gas flow can be observed through the sight glass. A protective cover is installed to protect the sight glass, avoiding the problem of inconvenient observation caused by severe wear. The protective cover also has a quick disassembly function. When the surface of the protective cover is severely worn and needs to be disassembled and replaced, the handles can be pulled to both sides at the same time. The handles drive the push rod and push plate to squeeze the spring and drive the insert block to be pulled out of the slot. Then, the protective cover is pulled outward to remove it, which can immediately complete the quick disassembly and reduce maintenance costs.

[0018] 2. In this utility model, the lighting lamp can provide illumination when the wrench body is working, and the lighting lamp can be easily disassembled or installed when turning the hand-tightening bolt, thus improving the overall practicality. Attached Figure Description

[0019] Figure 1 This utility model provides a three-dimensional structural diagram of a valve core replacement wrench for automotive air conditioning systems that eliminates the need for refrigerant release.

[0020] Figure 2 This utility model provides a schematic diagram of the retractable three-dimensional structure of a valve core replacement wrench for automotive air conditioning without refrigerant release;

[0021] Figure 3 This utility model provides a partial explosion diagram of a valve core replacement wrench for automotive air conditioning systems that eliminates the need for refrigerant release.

[0022] Figure 4 This utility model provides a partial cross-sectional structural diagram of a valve core replacement wrench for automotive air conditioning systems that eliminates the need for refrigerant release.

[0023] Figure 5 This utility model provides an exploded view of the slide rail structure of a valve core replacement wrench for automotive air conditioning systems that allows for refrigerant-free replacement.

[0024] Figure 6 This utility model provides a schematic diagram of the sleeve structure of a wrench for replacing valve cores of automotive air conditioners without releasing refrigerant.

[0025] Legend: 1. Wrench body; 2. Protective components; 201. Sight glass; 202. Protective cover; 203. Slot; 204. Guide block; 205. Fixing block; 206. Spring; 207. Push rod; 208. Handle; 209. Push plate; 210. Insert block; 3. Easy disassembly components; 301. Slide rail; 302. Threaded hole; 303. Lighting lamp; 304. Sleeve; 305. Hand-tightening bolt; 306. Limiting block. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0028] Examples, such as Figure 1 - Figure 5 As shown, this utility model provides a wrench for replacing the valve core of an automotive air conditioner without releasing refrigerant. It includes a wrench body 1, a protective component 2 at the front end of the wrench body 1, the protective component 2 including a sight glass 201, a protective cover 202 on the outer surface of the sight glass 201, slots 203 on both sides of the protective cover 202, guide blocks 204 connected to the upper and lower ends of the protective cover 202, fixing blocks 205 connected to both sides of the front end of the wrench body 1, two sets of springs 206 inside the fixing blocks 205, push rods 207 inserted into the interior of each set of springs 206, push plates 209 connected to the front ends of the two sets of push rods 207, insert blocks 210 connected to the front ends of the push plates 209, and handles 208 connected to the rear ends of the two sets of push rods 207.

[0029] like Figure 4 and Figure 5 As shown, the surface of the insert 210 has a bevel. The position and size of the insert 210 match the position and size of the slot 203. The bevel design allows the insert 210 to be quickly inserted into the slot 203. When the slot 203 is inserted by the insert 210, the protective cover 202 can be fixed.

[0030] like Figure 5 As shown, the insert 210 and the slot 203 form an interlocking connection. The wrench body 1 and the guide block 204 are provided with a guide groove at the matching position. The position of the guide block 204 and the guide groove are determined to avoid positional deviation and improve the convenience of installation.

[0031] like Figures 1-5 As shown, the push plate 209 and the spring 206 form an elastic structure. The design of the elastic structure can automatically push the plug 210 into the slot 203 to complete the installation.

[0032] like Figure 6 As shown, a convenient disassembly assembly 3 is connected to one outer surface of the wrench body 1. The convenient disassembly assembly 3 includes a slide rail 301, and a light lamp 303 is slidably connected inside the slide rail 301. The convenient disassembly assembly 3 can be used for lighting through the light lamp 303. When the hand-tightening bolt 305 is turned, the light lamp 303 can be installed or removed.

[0033] like Figure 1 and Figure 6 As shown, each of the bottom front ends of the lighting lamp 303 is connected to a sleeve 304, and a hand-tightening bolt 305 is inserted into the inside of the sleeve 304. The sleeve 304 can fix the hand-tightening bolt 305.

[0034] like Figure 6As shown, a limiting block 306 is fixedly connected to the surface of the hand-tightening bolt 305. The outer surface of the limiting block 306 is in contact with the inner wall of the sleeve 304. By sliding the limiting block 306 in the sleeve 304, the problem of the hand-tightening bolt 305 being lost after disassembly can be avoided.

[0035] like Figure 6 As shown, the position and size of the hand-tightening bolt 305 match the position and size of the threaded hole 302. After the hand-tightening bolt 305 passes through the sleeve 304, it forms a threaded connection with the threaded hole 302. The threaded connection design allows for quick and easy fixing of the lighting lamp 303.

[0036] like Figure 2 and Figure 6 As shown, the slider of the lighting lamp 303 is matched with the position of the slide rail 301, and the sliding connection method facilitates installation and fixation.

[0037] like Figure 6 As shown, the slide rail 301 is T-shaped, which facilitates the fixing of the two sets of hand-tightening bolts 305.

[0038] The effect achieved by this embodiment is as follows: When the wrench body 1 is connected to the valve, the internal gas flow can be observed through the sight glass 201, and it can be determined whether the connecting rod is connected to the valve. The protective cover 202 installed on the surface of the sight glass 201 can protect the sight glass 201. When the surface of the protective cover 202 is severely worn and needs to be disassembled and replaced, the handles 208 can be pulled to both sides simultaneously. The handles 208 drive the push rod 207 and push plate 209 to compress the spring 206, causing the insert block 210 to be pulled out of the slot 203. Then, the protective cover 202 can be pulled outwards to remove it. At this time, the guide block 204 of the new protective cover 202 is aligned with the guide groove on the surface of the wrench body 1 and pushed, so that the protective cover 202 can compress the angled position of the insert block 210. When the insert block 210 is compressed, it will automatically retract into the fixing block 205. When the protective cover 202 is fully attached to the surface of the sight glass 201, the spring 206 will push the push plate 209 through its own elasticity, causing the insert block 210 to be inserted into the slot 203 for fixation. This completes the quick replacement of the protective cover 202. When it is necessary to install the lighting lamp 303, the lighting lamp 303 can be slid into the slide rail 301. Then, turn the hand-tightening bolt 305 clockwise so that the front end of the hand-tightening bolt 305 can be inserted into the threaded hole 302 for thread fixation. The limiting block 306 will also move within the sleeve 304 to limit the movement and prevent the hand-tightening bolt 305 from being lost. After that, when using a wrench, the lighting lamp 303 can be turned on for illumination, improving the overall practicality. When disassembling the lighting lamp 303, the hand-tightening bolt 305 can be reversed so that the front end of the hand-tightening bolt 305 can be pulled out from the threaded hole 302. Then, pull the lighting lamp 303 upward to slide it off.

[0039] Working principle: When using the wrench body 1 to disassemble the valve, the gas flow can be observed through the sight glass 201. A protective cover 202 is installed to protect the sight glass 201, preventing severe wear that would hinder observation. The protective cover 202 also has a quick disassembly function. When the surface of the protective cover 202 is severely worn and needs to be disassembled and replaced, the handles 208 can be pulled to both sides simultaneously. The handles 208 drive the push rod 207 and push plate 209 to compress the spring, causing the insert block 210 to be pulled out of the slot 203. Then, the protective cover 202 can be pulled out to remove it, completing the quick disassembly immediately and reducing maintenance costs. The light 303 can provide illumination when the wrench body 1 is working, and the light 303 can be easily disassembled or installed when turning the hand-tightening bolt 305, improving overall practicality.

[0040] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A wrench for replacing valve cores of an automotive air conditioner without releasing refrigerant, comprising a wrench body (1), characterized in that: The front end of the wrench body (1) is provided with a protective component (2); The protective component (2) includes a sight glass (201), a protective cover (202) is provided on the outer surface of the sight glass (201), slots (203) are provided on both sides of the protective cover (202), guide blocks (204) are connected to the upper and lower ends of the protective cover (202), fixing blocks (205) are connected to both sides of the front end of the wrench body (1), two sets of springs (206) are provided inside the fixing blocks (205), push rods (207) are inserted into the two sets of springs (206), push plates (209) are connected to the front ends of the two sets of push rods (207), insert blocks (210) are connected to the front ends of the push plates (209), and handles (208) are connected to the rear ends of the two sets of push rods (207).

2. The automotive air conditioning valve core replacement wrench without refrigerant release as described in claim 1, characterized in that: The surface of the insert (210) is provided with a bevel, and the position and size of the insert (210) match the position and size of the slot (203).

3. The automotive air conditioning valve core replacement wrench without refrigerant release as described in claim 2, characterized in that: The insert (210) and the slot (203) form an interlocking connection, and the wrench body (1) is provided with a guide groove at the position where it matches the guide block (204).

4. The automotive air conditioning valve core replacement wrench without refrigerant release as described in claim 3, characterized in that: The push plate (209) and the spring (206) form an elastic structure.

5. A wrench for replacing valve cores of an automotive air conditioner without releasing refrigerant, as described in claim 1, characterized in that: The outer surface of one side of the wrench body (1) is connected to a convenient disassembly assembly (3), which includes a slide rail (301) and a light (303) is slidably connected inside the slide rail (301).

6. A wrench for replacing valve cores of an automotive air conditioner without releasing refrigerant, as described in claim 5, is characterized in that: The bottom front end of the lighting lamp (303) is connected to a sleeve (304), and a hand-tightening bolt (305) is inserted into the inside of the sleeve (304).

7. A wrench for replacing valve cores of an automotive air conditioner without releasing refrigerant, as described in claim 6, characterized in that: The surface of the hand-tightening bolt (305) is fixedly connected to a limiting block (306), and the outer surface of the limiting block (306) is in contact with the inner wall of the sleeve (304).

8. A wrench for replacing valve cores of an automotive air conditioner without releasing refrigerant, as described in claim 7, characterized in that: The position and size of the hand-tightening bolt (305) match the position and size of the threaded hole (302), and the hand-tightening bolt (305) forms a threaded connection with the threaded hole (302) after passing through the sleeve (304).

9. A wrench for replacing the valve core of an automotive air conditioner without releasing refrigerant, as described in claim 8, characterized in that: The slider of the lighting lamp (303) is matched with the position of the slide rail (301).

10. A wrench for replacing valve cores of an automotive air conditioner without releasing refrigerant, as described in claim 9, characterized in that: The slide rail (301) is T-shaped.

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