Tool special for automobile silencer lifting lug
By designing a special tool for automobile silencer lifting ears including hexagonal nuts, lead screws, lead screw support plates and bases, the problem of difficult disassembly of silencer lifting ears is solved, and the safety and efficiency of single-person operation is achieved, reducing labor intensity and improving testing efficiency.
Patent Information
- Application Number
- CN202420603718.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-03-26
AI Technical Summary
Before the vehicle emission test, it is difficult to disassemble the silencer lifting ears, which leads to the operator requiring the cooperation of multiple personnel, which is very labor-intensive, has a small operating space, which can easily damage the arms, and violent disassembly can easily damage the rubber lifting ears.
A special tool for automotive muffler hoisting lugs is designed, including hexagonal nuts, lead screws, screw support plates and bases. The base is fixed by a U-shaped structure of screw support plates and baffles. The screw is rotatably installed on the screw support plates. With the hexagonal nuts, the muffler can be safely and independently removed.
It realizes that an operator can independently and safely disassemble the silencer, reduces labor intensity, avoids bumps and injuries caused by narrow operating space, and avoids the risk of violent disassembly and damage to rubber hoist, improving the testing efficiency and reliability and versatility of the tooling.
Smart Images
Figure CN222644434U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of whole vehicle testing, and in particular relates to a special tooling for a lifting ear of an automobile muffler. Background Art
[0002] Before the whole vehicle emission test on the drum test bench, the test vehicle's after-treatment system must be sealed and modified, and the muffler needs to be disassembled, modified and welded. Because the chassis hanger has an inverted cone anti-detachment design, it is difficult to separate the rubber ears of 4-6 mufflers from the suspension boom when the whole vehicle is disassembled. The current operation method is that two operators pull the ears directly with their hands at the same time to force the muffler ears off the boom. It is extremely easy to damage the rubber ears with the assistance of other tools. The operating space is small, it is very easy to hurt the arms, and the labor intensity is relatively high. Utility Model Content
[0003] The utility model provides a special tool for the lifting ear of an automobile muffler in order to solve the problem that the lifting ear of the muffler is difficult to disassemble.
[0004] The technical solution adopted by the utility model is:
[0005] A special tooling for automobile muffler lifting ears, comprising a hexagonal nut, a screw, a screw support plate and a base; the screw support plate and the baffle are relatively fixed at two ends of the base to form a U-shaped structure, the screw is rotatably mounted on the screw support plate, one end of the screw is arranged toward the baffle, and the other end of the screw is provided with a hexagonal nut, and the screw and the baffle cooperate to remove the automobile muffler from the automobile muffler fixing hook.
[0006] Compared with the prior art, the utility model has the following beneficial effects:
[0007] The utility model solves the problem that before the National VI vehicle emission test, when the muffler of the test vehicle is modified, the labor intensity of the operator to install the muffler on the vehicle is high and the cooperation of multiple operators is required. It avoids the risk of collision and injury to the operator due to the small operating space and avoids the damage to the rubber lifting ear of the muffler by violent disassembly. The mechanism of the utility model can completely realize independent and safe operation by one operator, has a simple structure and is easy to operate, is convenient for installation and disassembly, reduces labor intensity, greatly improves the test efficiency, has good reliability and strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a schematic diagram of the structure of the utility model;
[0009] Figure 2 It is the front view of the utility model;
[0010] Figure 3 This is a schematic diagram of the connection device for the disassembly process of the utility model;
[0011] Among them: 1. Hexagonal nut; 2. Screw; 3. Screw support plate; 4. Base; 5. Upper through hole of silencer hoisting rubber; 6. Baffle 1; 7. Automobile muffler fixing hook; 8. Anti-loosening inverted cone; 9. Baffle 2; 10. Lower through hole of silencer hoisting rubber; 11. Automobile muffler; 12. Hoisting rubber. DETAILED DESCRIPTION
[0012] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings.
[0013] like Figure 1 , Figure 2 As shown, the present invention relates to a special tooling fixture for modifying a vehicle muffler before a whole vehicle emission test on a rotating drum, comprising a hexagonal nut 1, a screw 2, a screw support plate 3 and a base 4; the screw support plate 3 and the baffle are relatively fixed at both ends of the base 4 to form a U-shaped structure, the screw 2 is rotatably installed on the screw support plate 3, one end of the screw 2 is arranged toward the baffle, and the other end of the screw 2 is provided with a hexagonal nut 1, and the screw 2 cooperates with the baffle to remove the automobile muffler from the automobile muffler fixing hook 7.
[0014] The baffle includes baffle 1 6 and baffle 2 9 , a gap is provided between baffle 1 6 and baffle 2 9 and both are fixed on the base 4 , and baffle 1 6 and baffle 2 9 are arranged flush with one side of the lead screw support plate 3 .
[0015] The length of the gap between the baffle plate 1 6 and the baffle plate 2 9 is greater than the outer diameter of the automobile muffler fixing hook 7 , so that the automobile muffler fixing hook 7 can pass through the gap between the baffle plate 1 6 and the baffle plate 2 9 .
[0016] The outer diameter of the lead screw 2 is not larger than the outer diameters of the upper through hole 5 and the lower through hole 10 of the hoisting rubber 12, so that the lead screw 2 can pass through the upper through hole 5 and the lower through hole 10 of the hoisting rubber.
[0017] 1. The installation method of the muffler on the vehicle is as follows:
[0018] like Figure 3 As shown, the automobile muffler 11 is tightly and softly connected with the hoisting rubber 12 through the through hole 10 at the lower end of the muffler hoisting rubber, and the through hole 5 at the upper end of the muffler hoisting rubber 12 is inserted into the automobile muffler fixing hook 7. Each automobile muffler 11 has 4-6 hoisting rubbers 12 softly connected with the automobile muffler fixing hook 7.
[0019] 2. Usage steps:
[0020] like Figure 3As shown, align baffle plate 1 6 and baffle plate 2 9 on both sides of the automobile muffler fixing hook 7, close to the lifting rubber 12, align the movable screw 2 with the anti-loosening inverted cone 8 at the front end of the automobile muffler fixing hook 7, and twist the rotating hexagonal nut 1 to make the front end of the movable screw 2 closely contact with the anti-loosening inverted cone 8;
[0021] Use a ratchet wrench to rotate the hexagonal nut 1, so that the movable screw 2 moves toward the automobile muffler fixed hook 7 through the screw support plate 3, and the movable screw 2 pushes the anti-loosening inverted cone 8. The baffle 1 6 and the baffle 2 9 at the other end move with the movable screw 2 against the lifting rubber 12 on the automobile muffler fixed hook 7, and continuously push the upper end of the lifting rubber 12 to move to the left. As the movable screw 2 continues to move to the right, the baffle 1 6 and the baffle 2 9 are driven to pull the upper end through hole 5 of the muffler lifting rubber to separate from the automobile muffler fixed hook, until the upper end through hole 5 of the muffler lifting rubber is completely separated from the anti-loosening inverted cone 8.
[0022] The tooling fixture can be removed together with the automobile muffler 11 . If the operating space is limited, the through hole 10 at the lower end of the muffler hoisting rubber can be operated according to the operating space of the vehicle chassis to realize the disassembly of the automobile muffler 11 .
[0023] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.
Claims
1. A special tool for automobile muffler hanging ears, characterized by: The invention comprises a hexagonal nut (1), a lead screw (2), a lead screw support plate (3) and a base (4); the lead screw support plate (3) and a baffle are relatively fixed at two ends of the base (4) to form a U-shaped structure; the lead screw (2) is rotatably mounted on the lead screw support plate (3); one end of the lead screw (2) is arranged toward the baffle; the other end of the lead screw (2) is provided with a hexagonal nut (1); the lead screw (2) cooperates with the baffle to disassemble the automobile muffler from the automobile muffler fixing hook (7).
2. The special tooling for automobile muffler hanging ears according to claim 1, characterized in that: The baffle comprises baffle 1 (6) and baffle 2 (9), a gap is provided between baffle 1 (6) and baffle 2 (9) and both are fixed on the base (4), and baffle 1 (6) and baffle 2 (9) are arranged flush with one side surface of the lead screw support plate (3).
3. The special tooling for automobile muffler hanging ears according to claim 2, characterized in that: The length of the gap between the baffle plate 1 (6) and the baffle plate 2 (9) is greater than the outer diameter of the automobile muffler fixing hook (7), so that the automobile muffler fixing hook (7) can pass through the gap between the baffle plate 1 (6) and the baffle plate 2 (9).
4. The special tooling for automobile muffler hanging ears according to claim 1, characterized in that: The outer diameter of the lead screw (2) is not greater than the outer diameters of the upper through hole (5) and the lower through hole (10) of the muffler hoisting rubber (12), so that the lead screw (2) can pass through the upper through hole (5) and the lower through hole (10) of the muffler hoisting rubber.