Multi-station mechanical limiting structure

Abstract

The utility model relates to the technical field of limiting structures, in particular to a multi-station mechanical limiting structure, which is applied to a seat in a simulated cabin body of an airplane, and comprises a handle, a brake cable, an elastic piece, a limiting guide rail, a positioning seat, an elastic piece and a limiting guide rail, the base is fixedly connected to a seat mounting seat; the limiting part is arranged on the positioning seat in a penetrating manner, a plurality of limiting grooves are formed in the limiting guide rail, the limiting part extends into the limiting grooves under the action of the elastic part, and the other end of the brake cable is fixedly connected with the upper end of the limiting part, so that the limiting part is separated from the limiting grooves by pulling the handle; the rear side of the limiting groove is a vertical surface, and the front side of the limiting groove is a wedge-shaped surface, so that when the seat moves towards the operation station, the limiting piece can be separated from the limiting groove under the extrusion of the wedge-shaped surface. The requirement that the seat is not allowed to move backwards when the seat is in a control station is met, meanwhile, forward movement of the seat is not limited by a limiting piece, and operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of limit structures, in particular to a multi-station mechanical limit structure. Background Art

[0002] After the seat in the aircraft simulation cabin reaches the use position, it needs to be restricted by a limiting structure to slide the seat backward out of the use position. At present, there are many limiting structures for limiting the seat position. For example, the patent document with publication number "CN102247059A" discloses a sliding limit seat. The present invention discloses a sliding limit seat, which uses spring force to engage the upper rack provided on the seat with the lower rack provided on the guide rail to achieve the limit of the seat, and pulls the pull wire through the handle to drive the upper rack away from the lower rack to unlock the seat.

[0003] However, in the prior art, the seat needs to be unlocked by pulling the handle before sliding in both directions, and when the seat is in use in the aircraft simulation cabin, no limit is required when sliding from outside the operating position to the operating position. If the limit structure provided by the above-mentioned prior art is adopted, the handle needs to be pulled all the time when sliding from outside the operating position to the operating position, which makes the operation inconvenient. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-station mechanical limiting structure to solve the defect of poor operation convenience when the prior art is applied to seats in a simulated cockpit of an aircraft.

[0005] The utility model is achieved through the following technical solutions:

[0006] A multi-position mechanical limit structure is used for seats in aircraft simulated cabins. It includes a handle, a brake line, an elastic member, and a limit rail. The limit rail is fixedly installed under the seat and extends along its sliding direction. The handle is hinged to the seat mounting base. One end of the brake line is fixedly connected to the handle. It also includes:

[0007] A positioning seat, fixedly connected to the seat mounting seat; and

[0008] The limiting member is passed through the positioning seat, and a number of limiting grooves are provided on the limiting guide rail. The limiting member extends into the limiting groove under the action of the elastic member, and the other end of the brake line is fixedly connected to the upper end of the limiting member so that the limiting member can be disengaged from the limiting groove by pulling the handle; the rear side of the limiting groove is a vertical surface, and the front side of the limiting groove is a wedge-shaped surface, so that when the seat moves toward the operating station, the limiting member can be disengaged from the limiting groove under the extrusion of the wedge-shaped surface.

[0009] Optionally, the limiting member is cylindrical.

[0010] Furthermore, the positioning seat is cylindrical, the limiting member is inserted into the positioning seat, a boss is provided in the middle of the limiting member, and the elastic member is sleeved on the limiting member and located between the top of the positioning seat and the boss.

[0011] Furthermore, the positioning seat includes a cylinder and a cylinder cover, the top end of the cylinder is open, and the cylinder cover is connected to the outside of the top end of the cylinder through threads.

[0012] Optionally, the elastic member is a spring.

[0013] Optionally, the limiting structure also includes an upper guide seat and a lower guide seat fixed on the seat mounting seat, the end of the brake line close to the limiting member is passed through the lower guide seat, and the end of the brake line close to the handle is passed through the upper guide seat.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects: in the utility model, the limiting member extends into the limiting groove under the action of the elastic member, and the rear side of the limiting groove is a vertical surface, so that the seat needs to be unlocked by pulling the wrench before moving backward, which meets the requirement that the seat is not allowed to move backward in the operating position; at the same time, the front side of the limiting groove is a wedge-shaped surface. With this arrangement, when the seat moves toward the operating position, the limiting member can be disengaged from the limiting groove under the squeezing of the wedge-shaped surface, so that the seat can move forward without being restricted by the limiting member, and even when the seat slides from outside the operating position to the operating position, the operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic structural diagram of a multi-station mechanical limit structure provided by the utility model;

[0017] Figure 2 Schematic diagram of the connection between the positioning seat and the limiting member;

[0018] Figure 3 A diagram showing the use of a multi-station mechanical limit structure provided by the present invention;

[0019] Figure 4 This is a diagram of the use state of a multi-station mechanical limit structure provided by the utility model (hidden seat);

[0020] Icon: 1-handle, 2-brake line, 3-elastic part, 4-limiting guide rail, 401-limiting groove, 5-positioning seat, 501-cylinder, 502-cylinder cover, 6-limiting part, 7-upper guide seat, 8-lower guide seat, 9-seat mounting seat, 10-seat. DETAILED DESCRIPTION

[0021] A multi-station mechanical limit structure is applied to seat 10 in a simulated aircraft cabin. It is worth noting that in actual application, the user sits on seat 10 and moves forward to the operating position, and moves backward to slide out of the operating position. Therefore, it is easy to understand that in this utility model, "front" and "rear" are defined according to the movement direction of seat 10.

[0022] refer to Figure 1-Figure 3 The limiting structure includes a handle 1, a brake line 2, an elastic member 3, a limiting guide rail 4, a positioning seat 5 and a limiting member 6.

[0023] The brake cable 2 can be of the type commonly used on bicycles, which is generally composed of an outer jacket and an inner steel wire rope. The limiting guide rail 4 is fixedly installed below the seat 10 and extends along its sliding direction. In actual use, it is fixed between the two sliding guide rails of the seat 10 and has a length that covers all operating stations.

[0024] The handle 1 is hingedly connected to the seat mounting base 9. One end of the brake cable 2 is fixedly connected to the handle 1. The positioning base 5 is fixedly connected to the seat mounting base 9. The limiter 6 is disposed within the positioning base 5. The limiter guide rail 4 is provided with a plurality of limit slots 401. The limiter 6 extends into the limit slots 401 under the action of the elastic member 3. The other end of the brake cable 2 is fixedly connected to the upper end of the limiter 6. When in use, the handle 1 is pulled to pull the cable, thereby moving the limiter 6 upward and out of the limit slot 401 to achieve unlocking.

[0025] On the basis of the above, the rear side of the limit groove 401 is a vertical surface, so that the seat 10 needs to be unlocked by pulling the wrench before moving backward, which meets the requirement that the seat 10 is not allowed to move backward in the operating position; at the same time, the front side of the limit groove 401 is a wedge-shaped surface. With this arrangement, when the seat 10 moves toward the operating position, the limit member 6 can be separated from the limit groove 401 under the squeezing of the wedge-shaped surface, so that the seat 10 can move forward without being restricted by the limit member 6, and even when the seat 10 slides from outside the operating position to the operating position, the operation is more convenient.

[0026] In actual use, the user sits on the seat 10 and pushes the ground with their feet to achieve rapid movement of the seat 10 in a work section without the limit guide rail 4. When moving the seat 10 in a work section with the limit guide rail 4, the user only needs to sit on the seat 10 and push the ground with their legs to move the seat 10 forward to the limit slot 401 of the desired work section. At the same time, the vertical surface behind the limit slot 401 limits the backward movement of the seat 10. When the seat 10 needs to exit the operating section, the user only needs to move the handle 1 to disengage the limit member 6 from the limit slot 401 to release the restriction on the backward movement of the seat 10.

[0027] As an option, the elastic member 3 in this embodiment is a spring.

[0028] As an option, the position-limiting member 6 of this embodiment is cylindrical, similar to a positioning pin. On this basis, the positioning seat 5 of this embodiment is cylindrical, with the position-limiting member 6 extending through the interior of the positioning seat 5. A boss is provided in the middle of the position-limiting member 6. The elastic member 3 is sleeved on the position-limiting member 6 and located between the top of the positioning seat 5 and the boss. Furthermore, the positioning seat 5 includes a cylinder 501 and a cylinder cover 502. The top of the cylinder 501 is open, and the cylinder cover 502 is connected to the outside of the top of the cylinder 501 via threads. This arrangement facilitates quick disassembly and assembly of the position-limiting member 6 and the elastic member 3. Furthermore, it is easy to understand that the bottoms of the cylinder cover 502 and the cylinder 501 should be provided with holes that cooperate with the position-limiting member 6 to serve as a guide for the position-limiting member 6.

[0029] It will be readily understood that in other embodiments, the stopper 6 can also have other shapes, such as a rectangle. Furthermore, the positioning base 5 can also have other structures, such as an L-shape or a flat plate, fixedly connected to the seat mounting base 9 and having a hole that matches the stopper 6, with the stopper 6 being inserted into the hole.

[0030] Based on the above, the limiting structure of this embodiment further includes an upper guide seat 7 and a lower guide seat 8 fixed to the seat mounting seat 9. The end of the brake cable 2 closest to the limiting member 6 is passed through the lower guide seat 8, and the end of the brake cable 2 closest to the handle 1 is passed through the upper guide seat 7. The upper guide seat 7 and the lower guide seat 8 are primarily used to limit the position of the two ends of the brake cable 2 and provide guidance for pulling and retracting the brake cable 2.

[0031] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A multi-position mechanical limit structure, applied to seats in a simulated aircraft cabin, comprising a handle, a brake line, an elastic member, and a limit rail. The limit rail is fixedly mounted under the seat and extends along its sliding direction. The handle is hinged to the seat mounting base. One end of the brake line is fixedly connected to the handle. The structure is characterized in that: Also includes: A positioning seat, fixedly connected to the seat mounting seat; as well as The limiting member is passed through the positioning seat, and a number of limiting grooves are provided on the limiting guide rail. The limiting member extends into the limiting groove under the action of the elastic member, and the other end of the brake line is fixedly connected to the upper end of the limiting member so that the limiting member can be disengaged from the limiting groove by pulling the handle; the rear side of the limiting groove is a vertical surface, and the front side of the limiting groove is a wedge-shaped surface, so that when the seat moves toward the operating station, the limiting member can be disengaged from the limiting groove under the extrusion of the wedge-shaped surface.

2. The multi-station mechanical limiting structure according to claim 1, characterized in that: The limiting member is cylindrical.

3. The multi-station mechanical limiting structure according to claim 2, characterized in that: The positioning seat is cylindrical, the limiting member is inserted into the positioning seat, a boss is provided in the middle of the limiting member, and the elastic member is sleeved on the limiting member and located between the top of the positioning seat and the boss.

4. The multi-station mechanical limiting structure according to claim 3, characterized in that: The positioning seat comprises a cylinder body and a cylinder cover. The top end of the cylinder body is open, and the cylinder cover is connected to the outside of the top end of the cylinder body through threads.

5. The multi-station mechanical limiting structure according to any one of claims 1 to 4, characterized in that: The elastic member is a spring.

6. The multi-station mechanical limiting structure according to any one of claims 1 to 4, characterized in that: The limiting structure also includes an upper guide seat and a lower guide seat fixed on the seat mounting seat. The end of the brake line close to the limiting member is passed through the lower guide seat, and the end of the brake line close to the handle is passed through the upper guide seat.

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