A negative pressure valve dismounting and assembling tool

Abstract

This utility model relates to a combination tool for disassembling and assembling a negative pressure valve, including a three-in-one wrench that integrates three different sizes of open-end wrenches into one combination wrench. A handheld flexible bracket is used to fix the negative pressure valve and works in conjunction with the three-in-one wrench. The three-in-one wrench and the handheld flexible bracket are independent and separate, but are used together. The handheld flexible bracket fixes the negative pressure valve, while the three-in-one wrench is used for disassembly and assembly. The three-in-one wrench has two ends, one end including a relatively large open-end wrench, and the other end including two relatively small open-end wrenches. The handheld flexible bracket has an F-shaped structure. After the design and manufacture of this novel solenoid valve quick disassembly and assembly tool was completed, on-site testing and installation showed good results, achieving the expected functions. It saves disassembly and assembly time and improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tobacco tooling technology, specifically a tool for disassembling and assembling a negative pressure valve. Background Technology

[0002] When cleaning the negative pressure valve, the entire negative pressure valve needs to be removed from the YB45 packaging machine. Then, the negative pressure valve is disassembled and broken down into parts, and each part is cleaned. After that, the parts are reassembled, and finally the entire negative pressure valve is installed back into the YB45 packaging machine. The cleaning work is then complete.

[0003] Removing the negative pressure valve as a whole from the YB45 packaging machine is relatively easy, but disassembling it into parts is more complicated. There are two main methods: ① Take the negative pressure valve to a location with a bench vise and clamp it in place. Use 17mm, 21mm, and 32mm open-end wrenches (adjustable wrenches can also be used) to loosen the valve. Reassemble it in the reverse order of using the wrenches. ② Near the YB45 packaging machine, use two suitable rods inserted into the mounting holes of the negative pressure valve. Hold both rods simultaneously and use 17mm, 21mm, and 32mm open-end wrenches to loosen the valve.

[0004] Method ① is time-consuming, while method ② is relatively dangerous, posing a risk of slipping during operation. Therefore, a quick disassembly / assembly tool needs to be designed and manufactured to save time and improve operational safety. Utility Model Content

[0005] The purpose of this utility model is to provide a tool for disassembling and assembling a negative pressure valve to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a negative pressure valve assembly and disassembly tool, comprising: a three-in-one wrench that integrates three different sizes of open-end wrenches into one combination wrench; a handheld flexible bracket for fixing the negative pressure valve and used in conjunction with the three-in-one wrench; the three-in-one wrench and the handheld flexible bracket are in an independent and separate state; wherein, the three-in-one wrench includes two ends, one end including one size of open-end wrench, and the other end including two sizes of open-end wrenches; the handheld flexible bracket has an F-shaped structure.

[0007] As a preferred technical solution, the F-shaped structure of the handheld flexible bracket includes a long rod and two short rods. The long rod has a round hole and a straight slot hole, which are used to install and position the two short rods respectively.

[0008] As a preferred technical solution, the outer surface of the short rod is provided with a friction surface to enhance the working friction coefficient of the outer surface of the short rod.

[0009] As a preferred technical solution, the friction surface is a threaded surface.

[0010] As a preferred technical solution, the short rod and the long rod are connected by a nut.

[0011] As a preferred technical solution, the nut is a wing-shaped hand-tightening nut.

[0012] As a preferred technical solution, both the long rod and the short rod are made of 40Cr material.

[0013] As a preferred technical solution, the end of the long rod is provided with a plastic handle.

[0014] As a preferred technical solution, the plastic handle is connected to the end of the long rod using a cylindrical head hexagonal screw.

[0015] As a preferred technical solution, the three different sizes of open-end wrenches are 17mm, 21mm, and 32mm open-end wrenches.

[0016] Compared with existing technologies, the beneficial effects of this utility model are: after the design and manufacture of this novel solenoid valve quick disassembly and assembly tool, the on-site debugging, installation and use results were good, achieving the expected function. It saves disassembly and assembly time and improves work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a three-in-one wrench disclosed in this utility model; Figure 2 This is a structural schematic diagram of a handheld flexible support disclosed in this utility model; Figure 3 This is a schematic diagram of the long rod structure of a handheld flexible support disclosed in this utility model; Figure 4 This is a schematic diagram of the plastic handle structure of a handheld flexible support disclosed in this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Three-in-one wrench; 11. Open-end wrench; 2. Handheld flexible support; 21. Long rod; 211. Round hole; 212. Straight slot hole; 22. Short rod; 23. Plastic handle; 24. Wing nut; 25. Threaded surface; 26. Socket head screw. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Example Please see Figure 1-4 This embodiment discloses a negative pressure valve assembly / disassembly tool, comprising: a three-in-one wrench 1, integrating three different sizes of open-end wrenches 11 into a single assembly wrench; and a handheld flexible support 2, used to fix the negative pressure valve and used in conjunction with the three-in-one wrench 1. The three-in-one wrench 1 and the handheld flexible support 2 are independent and separate, but are used together. The handheld flexible support 2 fixes the negative pressure valve, while the three-in-one wrench 1 is used for assembly / disassembly. The three-in-one wrench 1 includes two ends, one end including a relatively large open-end wrench 11, and the other end including two relatively small open-end wrenches 11. The handheld flexible support 2 has an F-shaped structure. Specifically, the three different sizes of open-end wrenches 11 can be 17mm, 21mm, and 32mm in diameter, respectively.

[0021] Preferred, such as Figure 2 As shown, the F-shaped structure of the handheld flexible support 2 includes a long rod 21 and two short rods 22. The long rod 21 has a round hole 211 and a straight slot hole 212, which are used to install and position the two short rods 22, respectively. The straight slot hole 212 allows adjustment of the center distance between the two short rods 22 to meet the matching requirements with the mounting hole of the negative pressure valve.

[0022] Preferably, the outer surface of the short rod 22 may be provided with a friction surface to enhance the working friction coefficient of the outer surface of the short rod 22. Specifically, this is used to enhance the friction between the outer surface of the short rod 22 and the contact surface between the negative pressure valve mounting hole during operation.

[0023] Furthermore, the friction surface is a threaded surface 25. It can be designed such that the short rod 22 and the long rod 21 are connected by a nut. For ease of installation and fine-tuning, the nut can be a wing-type hand-tightening nut 24.

[0024] Preferably, both the long rod 21 and the short rod 22 are made of 40Cr material. This facilitates processing and meets functional requirements.

[0025] Preferred, such as Figure 4 As shown, a plastic handle 23 is provided at the end of the long rod 21. The plastic handle 23 is connected to the end of the long rod 21 by a cylindrical head hexagonal screw 26. This ensures that the handle is comfortable to hold and aesthetically pleasing during use.

[0026] In actual use, this assembly and disassembly tool set is required to clean the negative pressure valve. To clean the negative pressure valve, the entire valve needs to be removed from the YB45 packaging machine. Then, the valve is disassembled into its parts, cleaned piece by piece, and then reassembled. Finally, the entire negative pressure valve is reinstalled back into the YB45 packaging machine, completing the cleaning process. In practice, removing the negative pressure valve from the packaging machine is relatively easy, but disassembling it is quite complex. However, this assembly and disassembly tool set makes disassembly and reassembly much easier.

[0027] Taking disassembly as an example: First, use the handheld flexible bracket 2 in the disassembly and assembly tool to fix the negative pressure valve by inserting the short rod 22 into the negative pressure valve mounting hole; The second step is to disassemble the valve with the negative pressure valve fixed. Specifically, first use a 17mm wrench to remove the output adapter of the negative pressure valve; then use a 21mm wrench to remove the solenoid coil lock nut; and finally, use a 32mm wrench to remove the valve core.

[0028] After cleaning, when assembling, you still need to use the handheld flexible bracket 2 to fix the negative pressure valve, and then use the three-in-one wrench 1 to assemble it in the reverse order.

[0029] After using this solenoid valve disassembly and assembly tool, the on-site debugging, installation, and use were successful, achieving the expected functions. It saved time on disassembly and assembly, improved work efficiency, and prevented any derivative malfunctions.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tool for disassembling and assembling a negative pressure valve, characterized in that, include: A three-in-one wrench that integrates three different sizes of open-end wrenches into one combination wrench; A handheld flexible bracket is used to fix a negative pressure valve and is used in conjunction with the three-in-one wrench; the three-in-one wrench and the handheld flexible bracket are independent and separate; wherein, the three-in-one wrench includes two ends, one end including a fixed wrench of one size and the other end including two fixed wrenches of different sizes; the handheld flexible bracket has an F-shaped structure.

2. The negative pressure valve disassembly and assembly tool according to claim 1, characterized in that, The F-shaped structure of the handheld flexible bracket includes a long rod and two short rods. The long rod has a round hole and a straight slot hole, which are used to install and position the two short rods respectively.

3. The negative pressure valve disassembly and assembly tool according to claim 2, characterized in that, The outer surface of the short rod is provided with a friction surface to enhance the working friction coefficient of the outer surface of the short rod.

4. The negative pressure valve disassembly and assembly tool according to claim 3, characterized in that, The friction surface is a threaded surface.

5. The negative pressure valve disassembly and assembly tool according to claim 4, characterized in that, The short rod and the long rod are connected by a nut.

6. The negative pressure valve disassembly and assembly tool according to claim 5, characterized in that, The nut is a butterfly-shaped hand-tightening nut.

7. The negative pressure valve disassembly and assembly tool according to claim 2, characterized in that, Both the long rod and the short rod are made of 40Cr material.

8. The negative pressure valve disassembly and assembly tool according to claim 2, characterized in that, The long rod has a plastic handle at its end.

9. A negative pressure valve disassembly and assembly tool according to claim 8, characterized in that, The plastic handle is connected to the end of the long rod using a cylindrical head hexagonal screw.

10. A negative pressure valve disassembly and assembly tool according to any one of claims 1-9, characterized in that, The three different sizes of open-end wrenches are 17mm, 21mm, and 32mm respectively.

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