Puller for repairing cabin door damping actuator
By designing a pull-out tool for repair of emergency door damping actuators, the problem of difficulty in pulling the throttle valve from the piston rod is solved, a stable and rapid disassembly process is achieved, and component damage is avoided.
Patent Information
- Application Number
- CN202420609262.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-03-27
AI Technical Summary
When repairing the emergency door damping actuator, it is difficult to pull the throttle valve from the piston rod, and it is easy to damage the throttle valve and the internal threaded hole wall due to excessive or uneven force.
A pull-out tool for repairing door damping actuators is designed, including a long threaded connecting rod, a threaded connecting head, a limiting threaded rod and a connecting nut. Through the fit and rotation of these components, the throttle valve can be stably moved upward and pulled out.
The pull-out makes the disassembly process of the throttle valve more convenient and fast, and the force action is uniform and stable, avoids damage to the components and improves the versatility of the pull-out.
Smart Images
Figure CN222791928U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aircraft component repair, in particular to a puller for repairing a cabin door damping actuator. Background Art
[0002] The emergency door damping actuator is installed on the aircraft emergency door. It has two main functions: one is to slow down the entire opening or closing process of the emergency door, and the other is to ensure that the emergency door can be opened under any circumstances. When the emergency door is opened or closed under normal circumstances, the emergency door damping actuator plays a damping role. When the emergency door cannot be opened normally due to external conditions, the emergency door damping actuator plays the role of an actuator, so that the door can be opened in time; when repairing the emergency door damping actuator, it is first necessary to disassemble it. During the disassembly process, there are two pairs of throttle valves with very small diameters on the piston rod of the actuator, which need to be removed from the rod hole on the piston rod. Since the throttle valve is covered with a sealing ring, the connection with the rod hole is very tight, and it is very laborious to remove it. Excessive force or uneven force can easily cause damage to the throttle valve and its internal threaded hole wall. For this reason, we propose a puller for repairing the door damping actuator. Utility Model Content
[0003] The utility model aims to provide a puller for repairing a door damping actuator to solve the problems raised in the above-mentioned background technology.
[0004] A puller for repairing a hatch door damping actuator comprises a connecting rod, a blind hole is provided on the right side of the connecting rod, a first threaded through hole is provided on the left side of the blind hole, a through groove is provided at the lower end of the blind hole, a long threaded connecting rod is threadedly connected in the first threaded through hole, the right end of the long threaded connecting rod passes through the connecting rod, the right end of the long threaded connecting rod cooperates with the internal threaded hole of a throttle valve with a larger rod diameter on a piston rod, the right end of the long threaded connecting rod is connected with a threaded connecting head, and the right end of the threaded connecting head cooperates with the internal threaded hole of the throttle valve with a smaller rod diameter on the piston rod, a second threaded through hole is radially provided on the rod body of the long threaded connecting rod, a limiting threaded rod is threadedly connected in the second threaded through hole, one end of the limiting threaded rod passes through the through groove, a gasket is provided on the outer sleeve of the long threaded connecting rod on the left side of the connecting rod, and a connecting nut is threadedly connected to the long threaded connecting rod on the left side of the gasket.
[0005] Preferably, the left end of the long threaded connecting rod is connected with a rod handle, and the rod handle facilitates the rotation of the long threaded connecting rod.
[0006] Preferably, a nylon pad is connected to the right side of the connecting rod, and the nylon pad plays a protective role to prevent the connecting rod from damaging the piston rod.
[0007] Compared with the prior art, the beneficial effects of the utility model are:
[0008] When disassembling the two pairs of throttle valves on the piston rod of the emergency door damping actuator, first, the threaded connector on the long threaded connecting rod is matched and connected with the internal threaded hole of the throttle valve with a smaller rod diameter, and then the limiting threaded rod is passed through the through groove and connected with the second threaded through hole on the long threaded connecting rod, and the connecting nut is rotated to drive the long threaded connecting rod and the connecting rod to move relative to each other through the rotation of the connecting nut until the connecting rod is pressed on the piston rod body, and the long threaded connecting rod and the threaded connector drive the throttle valve to move upward stably until it is pulled out. The whole disassembly process is convenient and fast, and the force is applied evenly and stably without causing damage to the components. Similarly, when disassembling the throttle valve with a larger rod diameter, the long threaded connecting rod is matched and connected with the internal threaded hole of the throttle valve, and then the connecting nut is rotated to pull it out, thereby improving the versatility of the puller. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a three-dimensional diagram of the utility model;
[0010] Figure 2 It is a structural sectional view of the utility model;
[0011] Figure 3 This is the parts diagram of the emergency door damping actuator.
[0012] In the figure: 1, connecting rod, 101, blind hole, 102, through groove, 103, first threaded through hole, 2, long threaded connecting rod, 201, second threaded through hole, 3, threaded connector, 4, limiting threaded rod, 5, gasket, 6, connecting nut, 7, rod handle, 8, nylon pad, 9, piston rod, 91, throttle valve. DETAILED DESCRIPTION
[0013] 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.
[0014] See also Figure 1-3A puller for repairing a door damping actuator comprises a connecting rod 1, a nylon pad 8 is connected to the right side of the connecting rod 1, the nylon pad 8 plays a protective role to prevent the connecting rod 1 from damaging the piston rod, a blind hole 101 is opened on the right side of the connecting rod 1, a first threaded through hole 103 is opened on the left side of the blind hole 101, a through groove 102 is opened at the lower end of the blind hole 101, a long threaded connecting rod 2 is threadedly connected in the first threaded through hole 103, a rod handle 7 is connected to the left end of the long threaded connecting rod 2, the rod handle 7 facilitates the rotation of the long threaded connecting rod 2, the right end of the long threaded connecting rod 2 passes through the connecting rod 1, and the right end of the long threaded connecting rod 2 is connected to the piston rod upper rod The right end of the long threaded connecting rod 2 is connected with a threaded connector 3, and the right end of the threaded connector 3 cooperates with the internal threaded hole of the throttle valve with a smaller rod diameter on the piston rod. A second threaded through hole 201 is radially opened on the rod body of the long threaded connecting rod 2, and a limiting threaded rod 4 is threadedly connected in the second threaded through hole 201. One end of the limiting threaded rod 4 passes through the through groove 102. A gasket 5 is provided on the outer sleeve of the long threaded connecting rod 2 on the left side of the connecting rod 1, and a connecting nut 6 is threaded on the long threaded connecting rod 2 on the left side of the gasket 5. The rotation of the connecting nut 6 drives the relative movement of the long threaded connecting rod 2 and the connecting rod 1.
[0015] Working principle: First, the threaded connector 3 on the long threaded connecting rod 2 is matched and connected with the internal threaded hole of the throttle valve with a smaller rod diameter, and then the limiting threaded rod 4 is passed through the through groove 102 and connected with the second threaded through hole 201 on the long threaded connecting rod 2. When the connecting nut 6 is rotated, the long threaded connecting rod 2 and the connecting rod 1 are driven to move relative to each other through the rotation of the connecting nut 6, until the connecting rod 1 is pressed on the piston rod body, the long threaded connecting rod 2 and the threaded connector 3 drive the throttle valve to move upward stably until it is pulled out;
[0016] When disassembling a throttle valve with a larger rod diameter, the long threaded connecting rod 2 is matched and connected with the internal threaded hole of the throttle valve, and then the connecting nut 6 is rotated to pull it out.
[0017] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0018] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A puller for repairing a door damping actuator, comprising a connecting rod (1), characterized in that: A blind hole (101) is provided on the right side of the connecting rod (1), a first threaded through hole (103) is provided on the left side of the blind hole (101), a through groove (102) is provided at the lower end of the blind hole (101), a long threaded connecting rod (2) is threadedly connected in the first threaded through hole (103), the right end of the long threaded connecting rod (2) passes through the connecting rod (1), the right end of the long threaded connecting rod (2) is connected to a threaded connector (3), a second threaded through hole (201) is radially provided on the rod body of the long threaded connecting rod (2), a limiting threaded rod (4) is threadedly connected in the second threaded through hole (201), one end of the limiting threaded rod (4) passes through the through groove (102), a gasket (5) is provided on the outer sleeve of the long threaded connecting rod (2) on the left side of the connecting rod (1), and a connecting nut (6) is threadedly connected to the long threaded connecting rod (2) on the left side of the gasket (5).
2. A puller for repairing a door damping actuator according to claim 1, characterized in that: The left end of the long threaded connecting rod (2) is connected to a rod handle (7).
3. A puller for repairing a door damping actuator according to claim 1, characterized in that: The right side of the connecting rod (1) is connected with a nylon pad (8).