Wrench special for disassembly and assembly of flange air pipe
By designing an extended wrench rod and an adjustable wrench handle, combined with the design of the through-groove and piston plate, the existing flange air duct disassembly and assembly wrench are insufficient adaptability and waste of lubricant in narrow spaces or in situations requiring large torque, achieving more efficient and comfortable operation.
Patent Information
- Application Number
- CN202421910538.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-08
AI Technical Summary
The wrench rod length of the existing flange air duct disassembly and assembly wrench is limited, and cannot adapt to narrow spaces or when there is a need for large torque. It is prone to rust, and the lubricant is prone to overflow, resulting in waste.
A special wrench for flange air duct disassembly and assembly is designed. By extending the wrench rod, threaded rod, thread groove and movable plate are set to adjust the length of the wrench handle, and lubricant waste is reduced by using through grooves, mounting plates and piston plates.
It realizes more flexible operation in tight spaces or where larger torque is required, reduces the risk of rust of wrench, avoids waste of lubricant, and improves work efficiency and operating comfort.
Smart Images

Figure CN222945415U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of disassembly and assembly wrenches, and in particular relates to a special wrench for disassembly and assembly of a flange air duct. Background Art
[0002] The disassembly wrench is a multifunctional tool that allows the user to adjust the size of the opening as needed to accommodate bolts, nuts and screws of different sizes. When installing flange ducts, the flange bolts of the duct on the wall side cannot be fully installed, which will increase the air leakage rate and the total air volume cannot meet the design and specification requirements, posing risks to the project quality performance. Ensuring that the duct installation meets the requirements is of great significance to avoiding project quality risks.
[0003] When installing the existing flange duct, a traditional air conditioner outdoor unit disassembly wrench is used to install the bolts. The wrench rod length of the traditional air conditioner outdoor unit disassembly wrench is limited, and the wrench handle length is fixed. It is not suitable for narrow spaces or occasions requiring a large torque. In addition, the wrench body is prone to rust. When the lubricant is added from the gap, the lubricant is easy to overflow from the inlet, causing a certain amount of waste. Utility Model Content
[0004] The purpose of the utility model is to provide a special wrench for disassembling and assembling flange air ducts, so as to solve the problems proposed in the above-mentioned background technology that the wrench rod has a limited length, the wrench handle has a fixed length, is not suitable for narrow spaces or occasions requiring a large torque, and the wrench body is prone to rust. When the lubricant is added from the gap, the lubricant is prone to overflow from the inlet.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special wrench for disassembling and assembling a flange air duct, comprising: a wrench body, the wrench body is in the shape of a hollow tube, a wrench rod is arranged in the wrench body, and the wrench rod is lengthened, a wrench head is installed at the bottom end of the wrench rod, a sleeve is arranged below the wrench head, a connecting plate is installed between the sleeve and the wrench body, a wrench handle is installed at the top end of the wrench rod, and movable components are arranged on both sides of the wrench handle.
[0006] Preferably, the movable component comprises a threaded groove, a threaded rod and a movable plate, the threaded groove is provided on the wrench handle, the threaded rod is screwed through the threaded groove, and the movable plate is mounted on one end of the threaded rod located outside the threaded groove.
[0007] Preferably, a through groove is provided on the wrench body, a piston plate is provided in the through groove, a connecting rod is mounted on the piston plate, a mounting plate is fixed on the connecting rod, and a magnetic attraction component is provided on both the mounting plate and the wrench body.
[0008] Preferably, the magnetic attraction assembly includes a magnetic groove and a first magnetic attraction block, the magnetic groove is opened on the mounting plate and the side wall of the wrench body, and the first magnetic attraction block is installed in the magnetic groove.
[0009] Preferably, a first limit block is installed on the outer wall of the wrench rod, a second limit block is installed on the inner wall of the wrench body, and a spring is installed between the first limit block and the second limit block.
[0010] Preferably, an anti-slip groove is provided on the outer wall of the wrench body, and a second magnetic block is provided in the wrench head.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] (1) The utility model lengthens the wrench rod to increase the length of the lever. When in use, the wrench rod is lengthened to generate a greater torque when tightening or loosening a bolt. The lengthened wrench rod can provide a longer operating distance, so that the operator does not need to change his posture or use additional tools, thereby improving work efficiency.
[0013] (2) The utility model adjusts the length of the wrench handle by providing a threaded rod, a threaded groove and a movable plate. When in use, the threaded rod and the threaded groove interact with each other to drive the movable plate to move, thereby adjusting the length of the wrench handle. This can more flexibly adapt to different work requirements, such as narrow spaces or situations requiring a large torque, thereby improving operating comfort.
[0014] (3) The utility model reduces the waste of lubricant by providing a through groove, a mounting plate and a piston plate. When in use, the lubricant is poured into the through groove, and the mounting plate pushes the piston plate through the connecting rod to push the lubricant in the through groove into the wrench body, thereby preventing the lubricant from overflowing from the inlet, thereby reducing the waste of lubricant. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the lever handle of the utility model;
[0017] Figure 3 It is a structural schematic diagram of the spring of the utility model;
[0018] Figure 4 for Figure 1 A magnified view of part A in FIG.
[0019] Figure 5 for Figure 1 A magnified view of part B in FIG.
[0020] In the figure: 1. wrench body; 2. wrench rod; 3. wrench head; 4. sleeve; 5. connecting plate; 6. wrench handle; 7. threaded groove; 8. threaded rod; 9. movable plate; 10. through groove; 11. piston plate; 12. connecting rod; 13. mounting plate; 14. magnetic groove; 15. first magnetic block; 16. first limit block; 17. second limit block; 18. spring; 19. anti-slip groove; 20. second magnetic block. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figure 1-Figure 4 As shown, the utility model provides the following technical solutions: a special wrench for disassembling and assembling a flange air duct, comprising: a wrench body 1, the wrench body 1 is in the shape of a hollow tube, a wrench rod 2 is arranged inside the wrench body 1, and the wrench rod 2 is lengthened, a wrench head 3 is installed at the bottom end of the wrench rod 2, a sleeve 4 is arranged below the wrench head 3, a connecting plate 5 is installed between the sleeve 4 and the wrench body 1, a wrench handle 6 is installed at the top end of the wrench rod 2, and movable components are arranged on both sides of the wrench handle 6.
[0023] Furthermore, the movable component includes a threaded groove 7, a threaded rod 8 and a movable plate 9. The threaded groove 7 is opened on the lever handle 6. The threaded rod 8 is screwed through the threaded groove 7. The movable plate 9 is installed at one end of the threaded rod 8 located outside the threaded groove 7.
[0024] Furthermore, a first limit block 16 is installed on the outer wall of the wrench rod 2 , a second limit block 17 is installed on the inner wall of the wrench body 1 , and a spring 18 is installed between the first limit block 16 and the second limit block 17 .
[0025] Furthermore, an anti-slip groove 19 is provided on the outer wall of the wrench body 1 , and a second magnetic attraction block 20 is provided inside the wrench head 3 .
[0026] Through the above technical solution:
[0027] When in use, the wrench head 3 and the sleeve 4 act on the nut, hold the wrench body 1, and screw the wrench head 3, which is convenient for installing and removing the nut. The wrench rod 2 is lengthened to increase the length of the lever, thereby generating a greater torque when tightening or loosening the bolt. The lengthened wrench rod 2 can provide a longer operating distance, so that the operator does not need to change his posture or use additional tools, thereby improving work efficiency; screw the threaded rod 8, and through the interaction between the threaded rod 8 and the threaded groove 7, the movable plate 9 is driven to move, thereby adjusting the length of the wrench handle 6. By adjusting the length of the wrench handle 6, it can be more flexibly adapted to different work in different working environments, such as narrow spaces or occasions requiring a large torque. Demands, improve work efficiency, and improve operating comfort: and within sufficient space, the length of the easily adjustable wrench handle 6 can allow the operator to adjust it to the most comfortable position according to his or her height and arm length, reduce fatigue caused by long-term work, increase torque, and the anti-slip groove 19 increases the friction between the hand and the wrench body 1 to improve the stability of holding. The second magnetic block 20 can absorb bolts or nuts, which is convenient for operation in positions that are difficult to grasp directly. The spring 18 can provide the necessary elastic force so that the wrench head 3 can be locked in a specific position, which is convenient for maintaining stability when tightening or loosening the bolt, and the spring 18 can reduce vibration and impact during operation, making the operation smoother and improving the comfort of use.
[0028] See also Figure 1 and Figure 5 As shown, a through slot 10 is provided on the wrench body 1, a piston plate 11 is provided in the through slot 10, a connecting rod 12 is installed on the piston plate 11, a mounting plate 13 is fixed on the connecting rod 12, and a magnetic attraction component is provided on the mounting plate 13 and the wrench body 1.
[0029] Furthermore, the magnetic attraction component includes a magnetic groove 14 and a first magnetic attraction block 15 . The magnetic groove 14 is provided on the mounting plate 13 and the side wall of the wrench body 1 . The first magnetic attraction block 15 is installed in the magnetic groove 14 .
[0030] Through the above technical solution:
[0031] When in use, the mounting plate 13 is moved, and the mounting plate 13 takes out the piston plate 11 through the connecting rod 12, and then the lubricant is poured into the through groove 10. After the lubricant is poured, the piston plate 11 is placed in the through groove 10 again, and the mounting plate 13 is pressed. The mounting plate 13 is pushed against the piston plate 11 by the connecting rod 12 to move, and the piston plate 11 pushes the lubricant in the through groove 10 into the wrench body 1. Timely replenishment of lubricant can form a protective film to prevent the metal parts inside the wrench body 1 from rusting, and the lubricated wrench body 1 is smoother to operate, which can improve work efficiency, especially when tightening or loosening bolts, it is easier to apply torque, and the lubricant is pushed against the piston plate 11, which can avoid the lubricant from overflowing from the inlet when adding lubricant, thereby reducing the waste of lubricant. After the lubricant is replenished, the mounting plate 13 is installed on the wrench body 1 through the interaction of the first magnetic block 15 in the magnetic suction assembly, so that the mounting plate 13 is not easy to fall off, thereby improving the stability of the equipment.
[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A special wrench for disassembling and assembling flange air duct, characterized in that: include: A wrench body (1) is in the shape of a hollow tube. A wrench rod (2) is arranged inside the wrench body (1), and the wrench rod (2) is lengthened. A wrench head (3) is installed at the bottom end of the wrench rod (2). A sleeve (4) is arranged below the wrench head (3). A connecting plate (5) is installed between the sleeve (4) and the wrench body (1). A wrench handle (6) is installed at the top end of the wrench rod (2), and movable components are arranged on both sides of the wrench handle (6).
2. A special wrench for disassembling and assembling flange air duct according to claim 1, characterized in that: The movable assembly comprises a threaded groove (7), a threaded rod (8) and a movable plate (9); the threaded groove (7) is formed on the lever handle (6); the threaded rod (8) is screwed through the threaded groove (7); and the movable plate (9) is mounted on one end of the threaded rod (8) located outside the threaded groove (7).
3. A special wrench for disassembling and assembling flange air duct according to claim 2, characterized in that: The wrench body (1) is provided with a through groove (10), a piston plate (11) is provided in the through groove (10), a connecting rod (12) is installed on the piston plate (11), a mounting plate (13) is fixed on the connecting rod (12), and a magnetic attraction component is provided on the mounting plate (13) and the wrench body (1).
4. A special wrench for disassembling and assembling flange air duct according to claim 3, characterized in that: The magnetic attraction component comprises a magnetic groove (14) and a first magnetic attraction block (15); the magnetic groove (14) is provided on the mounting plate (13) and the side wall of the wrench body (1); and the first magnetic attraction block (15) is installed in the magnetic groove (14).
5. A special wrench for disassembling and assembling flange air duct according to claim 4, characterized in that: A first limit block (16) is installed on the outer wall of the wrench rod (2), a second limit block (17) is installed on the inner wall of the wrench body (1), and a spring (18) is installed between the first limit block (16) and the second limit block (17).
6. A special wrench for disassembling and assembling flange air duct according to claim 5, characterized in that: An anti-slip groove (19) is provided on the outer wall of the wrench body (1), and a second magnetic attraction block (20) is provided inside the wrench head (3).