Sliding block assembly with inner sliding block

Abstract

The utility model relates to the technical field of aviation, in particular to a sliding block assembly with an inner sliding block, which is characterized in that a base is arranged at the bottom of a vehicle body, a front rotating wheel and a rear rotating wheel are arranged below the base, an inner cavity is formed in the base, a through groove is formed in the surface of the base, a guide rod is fixed in the through groove, and a square plate is fixed in the inner cavity. A transmission column is slidably connected to the middle of the square plate, a pedal is fixed to one end of the transmission column, a connecting plate is fixed to the other end of the transmission column, the vertical plate is fixed to the bottom of the base, and a rotating shaft is rotatably connected to the bottom of the vertical plate; the device has the beneficial effects that a worker steps on a pedal by feet to enable a transmission column to move downwards so as to drive a connecting plate to move downwards, and due to the fact that a movable rod is hinged to the connecting plate and a fixed seat, two movable frames are far away from each other, a locking rod continuously gets close to a locking ring till the locking rod is inserted into a locking hole, braking of the locking ring is achieved, and the locking effect is improved. Therefore, braking of the rear rotating wheel is achieved, and the effect of stable braking is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation, in particular to a slider assembly with an inner slider. Background Art

[0002] Airplanes are becoming increasingly popular due to their short travel time, high safety factor, and comfortable travel. During the flight, the kitchen staff usually packs the prepared meals into the food delivery cart in advance, and the crew members deliver the food to the designated location and then distribute it uniformly or collect it in order. During the meal delivery process, the most important delivery tool is the meal delivery cart. Existing meal delivery carts generally have storage space for in-flight meals, drinks, etc.

[0003] Airline meal carts are essential for storing airplane meals. Cabin crew members push and pull the airline meal carts to move, which can greatly reduce manpower. Not only is the storage capacity large, but pushing is also very labor-saving. In the actual use of the meal cart, it is generally necessary to pause in front of each passenger waiting to pick up the meal, and then take out the meal.

[0004] However, existing airline catering carts do not have a braking function. When the aircraft tilts during flight, the catering cart will move due to inertia, which is inconvenient for flight attendants to use. If a handbrake is used, it will increase the difficulty of operation for users and make it inconvenient to deliver items. Therefore, the present invention proposes a slider assembly with an inner slider to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to provide a slider assembly with an inner slider to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a slider assembly with an inner slider, comprising: a front rotating wheel and a rear rotating wheel, wherein the upper ends of the front rotating wheel and the rear rotating wheel are provided with a base, which is arranged at the lower end of the vehicle body, the interior of the base is provided with an inner cavity, the surface of the base is provided with a through groove, a guide rod is fixed in the through groove, a square plate is fixed in the inner cavity, a transmission column is slidably connected to the middle portion of the square plate, a foot pedal is fixed to one end of the transmission column, and a connecting plate is fixed to the other end of the transmission column;

[0007] The vertical plate is fixed to the bottom of the base, the bottom of the vertical plate is rotatably connected to a rotating shaft, both ends of the rotating shaft are fixed with rear wheels, a locking ring is fixed on the rotating shaft, a locking hole is opened on the surface of the locking ring, and a linear bearing rod is fixed on the surface of the vertical plate;

[0008] A movable rod, one end of the movable rod is hinged to the connecting plate, the other end of the movable rod is hinged to the fixed seat, the fixed seat is fixedly connected to the movable ring, a movable frame is fixed under the movable ring, a locking rod is fixed on the surface of the movable frame, side plates are fixed on both sides of the movable frame, and support springs are fixed on the side plates.

[0009] Preferably, the guide rods are provided in two groups, and the two groups of guide rods are symmetrically distributed about the central axis of the through slot. Guide holes are opened on the surface of the foot pedal, and the guide holes are provided in two groups, and the two groups of guide holes are symmetrically distributed about the central axis of the foot pedal. The outer wall of the foot pedal and the inner wall of the through slot are slidably connected, and the outer wall of the guide rod and the inner wall of the guide hole are slidably connected.

[0010] Preferably, there are two groups of vertical plates, which are symmetrically distributed about the central axis of the base; there are two groups of locking rings, which are symmetrically distributed about the central axis of the rotating shaft, and the locking rings are located on the inner side of the vertical plates.

[0011] Preferably, there are several locking holes, which are evenly distributed on the surface of the locking ring, and the end faces of the locking holes are chamfered. There are several locking rods, which are evenly distributed on the surface of the movable frame, and the end faces of the locking rods are chamfered. The locking rods and the locking ring are arranged in the same manner, and the locking rods can be inserted into the locking holes.

[0012] Preferably, the inner ring diameter of the locking ring is larger than the diameter of the rotating shaft, and the locking ring is sleeved on the rotating shaft.

[0013] Preferably, the side panels are provided in two groups, and the two groups of side panels are respectively located on both sides of the movable frame; the movable rods are provided in two groups, and the two groups of movable rods are symmetrically distributed about the central axis of the connecting plate.

[0014] Preferably, the movable ring and the linear bearing rod are in sliding connection.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The brake structure and the slider assembly with the inner slider proposed by the present invention enable the staff to move the transmission column downward by stepping on the pedal, thereby driving the connecting plate to move downward. Since the movable rod is hinged to the connecting plate and the fixed seat respectively, the two movable frames are moved away from each other, so that the locking rod continuously approaches the locking ring until the locking rod is inserted into the locking hole, thereby braking the locking ring, thereby braking the rear rotating wheel, and achieving a stable braking effect. This avoids the problem that the existing airline catering carts do not have a braking function. When the aircraft tilts during flight, the catering cart will move due to inertia, which is inconvenient for the flight attendants to use. However, if a handbrake is used, it will increase the difficulty of operation for the user and it will be inconvenient to deliver items. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is the main view of the structure of the utility model;

[0019] Figure 3 This is a detailed diagram of the structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the movable frame structure of the utility model.

[0021] In the figure: 1. Vehicle body; 2. Base; 3. Front swivel wheel; 4. Vertical plate; 5. Rear swivel wheel; 6. Support spring; 7. Linear bearing rod; 8. Foot pedal; 9. Guide rod; 10. Through slot; 11. Moving frame; 12. Rotating shaft; 13. Square plate; 14. Locking ring; 15. Connecting plate; 16. Inner cavity; 17. Moving ring; 18. Transmission column; 19. Guide hole; 20. Movable rod; 21. Fixed seat; 22. Locking hole; 23. Locking rod; 24. Side plate. DETAILED DESCRIPTION

[0022] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1

[0024] See also Figure 1-Figure 4 The utility model provides a technical solution: a slider assembly with an inner slider, comprising: a front rotating wheel 3 and a rear rotating wheel 5, the upper ends of the front rotating wheel 3 and the rear rotating wheel 5 are provided with a base 2, the base 2 is provided at the lower end of the vehicle body 1, the interior of the base 2 is opened in an inner cavity 16, a through groove 10 is opened on the surface of the base 2, a guide rod 9 is fixed in the through groove 10, a square plate 13 is fixed in the inner cavity 16, a transmission column 18 is slidably connected to the middle part of the square plate 13, a foot pedal 8 is fixed to one end of the transmission column 18, and a connecting plate 15 is fixed to the other end of the transmission column 18. When in use, the foot pedal 8 extends to the outside of the base 2 through the through groove 10, which is convenient for the operator to perform braking operations;

[0025] The vertical plate 4 is fixed to the bottom of the base 2. The bottom of the vertical plate 4 is rotatably connected to the rotating shaft 12. The rear wheels 5 are fixed at both ends of the rotating shaft 12. A locking ring 14 is fixed on the rotating shaft 12. A locking hole 22 is provided on the surface of the locking ring 14. A linear bearing rod 7 is fixed on the surface of the vertical plate 4. The moving ring 17 and the linear bearing rod 7 are slidably connected. When in use, the moving ring 17 is slidably connected to the linear bearing rod 7 through the bearing, thereby improving the stability of the moving ring 17 when moving, and at the same time providing guidance and support for the movement of the moving frame 11.

[0026] Example 2

[0027] On the basis of the first embodiment, two groups of guide rods 9 are provided, and the two groups of guide rods 9 are symmetrically distributed about the central axis of the through groove 10. A guide hole 19 is opened on the surface of the foot pedal 8, and the guide hole 19 is provided in two groups. The two groups of guide holes 19 are symmetrically distributed about the central axis of the foot pedal 8. The outer wall of the foot pedal 8 and the inner wall of the through groove 10 are slidably connected, and the outer wall of the guide rod 9 and the inner wall of the guide hole 19 are slidably connected. When in use, when pressure is applied to the foot pedal to cause it to move downward, the guide rod 9 slides correspondingly in the guide hole 19, thereby providing a guiding and supporting function, thereby improving the stability of the pedal when moving;

[0028] There are several locking holes 22, which are evenly distributed on the surface of the locking ring 14, and the end faces of the locking holes 22 are chamfered. There are several locking rods 23, which are evenly distributed on the surface of the moving frame 11, and the end faces of the locking rods 23 are chamfered. The locking rods 23 and the locking ring 14 are arranged in the same manner, and the locking rods 23 can be inserted into the locking holes 22. When in use, the locking rods 23 and the locking ring 14 are both chamfered and the locking rods 23 and the locking ring 14 are arranged in the same manner, thereby improving the continuity and stability of the locking rods 23 inserted into the locking holes 22, and improving the stability of the braking effect.

[0029] Example 3

[0030] On the basis of the second embodiment, the inner ring diameter of the locking ring 14 is larger than the diameter of the rotating shaft 12. The locking ring 14 is sleeved on the rotating shaft 12. When in use, the moving frame 11 and the rotating shaft 12 will not contact each other, thereby preventing the moving frame 11 from affecting the rotating shaft 12 and ensuring the normal movement of the vehicle body 1.

[0031] The movable rod 20 has one end hinged to the connecting plate 15, and the other end hinged to the fixed seat 21. The fixed seat 21 is fixedly connected to the movable ring 17. A movable frame 11 is fixed below the movable ring 17. A locking rod 23 is fixed to the surface of the movable frame 11. Side plates 24 are fixed on both sides of the movable frame 11. Support springs 6 are fixed on the side plates 24. When in use, after the force on the pedal is released, the two movable frames 11 are brought close to each other through the rebound effect of the support spring 6, and the locking rod 23 is pulled out of the locking hole 22. At the same time, the pedal returns to its position and rises, thereby releasing the braking effect. The operation is simple.

[0032] In actual use, the staff member steps on the pedal to move the transmission column 18 downward, thereby driving the connecting plate 15 downward. Since the movable rod 20 is hinged to the connecting plate 15 and the fixed seat 21 respectively, the moving ring 17 slides on the linear bearing rod 7, thereby causing the two moving frames 11 to move away from each other. At this time, the support spring 6 is stretched, causing the locking rod 23 to continuously approach the locking ring 14 until the locking rod 23 is inserted into the locking hole 22, thereby braking the locking ring 14, thereby braking the rear rotating wheel 5 and achieving a stable braking effect. The staff member cancels the application of force to the pedal. Under the rebound action of the support spring 6, the two moving frames 11 will be driven to move closer to each other, causing the locking rod 23 to be withdrawn from the locking hole 22, thereby releasing the braking effect. This avoids the problem that the existing airline catering carts do not have a braking function. When the aircraft tilts during flight, the catering cart will move due to inertia, which is inconvenient for the crew to use. However, if a handbrake is used, it will increase the difficulty of operation for the user and make it inconvenient to hand over items.

[0033] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slider assembly with an inner slider, characterized in that: include: A front rotating wheel (3) and a rear rotating wheel (5), wherein the upper ends of the front rotating wheel (3) and the rear rotating wheel (5) are provided with a base (2), the base (2) is provided at the lower end of the vehicle body (1), the interior of the base (2) is provided with an inner cavity (16), a through groove (10) is provided on the surface of the base (2), a guide rod (9) is fixed in the through groove (10), a square plate (13) is fixed in the inner cavity (16), a transmission column (18) is slidably connected to the middle of the square plate (13), a pedal (8) is fixed to one end of the transmission column (18), and a connecting plate (15) is fixed to the other end of the transmission column (18); A vertical plate (4), the vertical plate (4) is fixed to the bottom of the base (2), the bottom of the vertical plate (4) is rotatably connected to a rotating shaft (12), rear rotating wheels (5) are fixed to both ends of the rotating shaft (12), a locking ring (14) is fixed on the rotating shaft (12), a locking hole (22) is opened on the surface of the locking ring (14), and a linear bearing rod (7) is fixed on the surface of the vertical plate (4); A movable rod (20), one end of the movable rod (20) is hinged to the connecting plate (15), the other end of the movable rod (20) is hinged to the fixed seat (21), the fixed seat (21) is fixedly connected to the movable ring (17), a movable frame (11) is fixed below the movable ring (17), a locking rod (23) is fixed on the surface of the movable frame (11), side plates (24) are fixed on both sides of the movable frame (11), and support springs (6) are fixed on the side plates (24).

2. The slider assembly with an inner slider according to claim 1, characterized in that: The guide rods (9) are provided in two groups, and the two groups of guide rods (9) are symmetrically distributed about the central axis of the through groove (10). The surface of the foot pedal (8) is provided with guide holes (19), and the guide holes (19) are provided in two groups, and the two groups of guide holes (19) are symmetrically distributed about the central axis of the foot pedal (8). The outer wall of the foot pedal (8) and the inner wall of the through groove (10) are in sliding connection, and the outer wall of the guide rods (9) and the inner wall of the guide holes (19) are in sliding connection.

3. The slider assembly with an inner slider according to claim 1, characterized in that: The vertical plates (4) are provided in two groups, and the two groups of vertical plates (4) are symmetrically distributed about the central axis of the base (2); the locking rings (14) are provided in two groups, and the two groups of locking rings (14) are symmetrically distributed about the central axis of the rotating shaft (12); the locking rings (14) are located on the inner side of the vertical plates (4).

4. The slider assembly with an inner slider according to claim 1, characterized in that: A plurality of locking holes (22) are provided, and the plurality of locking holes (22) are evenly distributed on the surface of the locking ring (14). The end faces of the locking holes (22) are chamfered. A plurality of locking rods (23) are provided, and the plurality of locking rods (23) are evenly distributed on the surface of the moving frame (11). The end faces of the locking rods (23) are chamfered. The locking rods (23) and the locking ring (14) are arranged in the same manner, and the locking rods (23) can be inserted into the locking holes (22).

5. The slider assembly with an inner slider according to claim 1, characterized in that: The inner ring diameter of the locking ring (14) is larger than the diameter of the rotating shaft (12), and the locking ring (14) is sleeved on the rotating shaft (12).

6. The slider assembly with an inner slider according to claim 1, characterized in that: The side plates (24) are provided in two groups, and the two groups of side plates (24) are respectively located on both sides of the movable frame (11). The movable rods (20) are provided in two groups, and the two groups of movable rods (20) are symmetrically distributed about the central axis of the connecting plate (15).

7. The slider assembly with an inner slider according to claim 1, characterized in that: The moving ring (17) and the linear bearing rod (7) are in sliding connection.

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