A self-locking folding side door mechanism for a food cart

Abstract

This utility model relates to the field of catering cart technology, specifically to an automatically locking folding side door mechanism for a catering cart. It includes a side panel of the cart body, with two rotating rods rotatably connected to the side panel. Each rotating rod is fixedly connected to a side door. A driven gear is fixedly connected to each rotating rod at a position adjacent to the side door. An adjustment mechanism is provided on the back wall of the side panel. The adjustment mechanism includes two sliding grooves and a support block. A bidirectional lead screw is rotatably connected to the support block, and a rotating handle is fixedly connected to the bottom end of the bidirectional lead screw. A driving rack is slidably connected inside each sliding groove, and a connecting block is fixedly connected to the back wall of each driving rack. The beneficial effect of this utility model is that the adjustment mechanism allows the operator to simultaneously open, close, and automatically lock the upper and lower side doors by simply rotating the bidirectional lead screw.

Description

Technical Field

[0001] This utility model relates to the field of food cart technology, specifically to a folding side door mechanism for a food cart that can be automatically locked. Background Technology

[0002] The food cart's side door features a folding design, which opens to form a bar counter, allowing customers to order directly in front of the side door. At the same time, staff can quickly pass drinks or food through the side door.

[0003] In existing technology, folding side doors require staff to manually push them open first, and then turn the locking handle to complete the limit, which is cumbersome and inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide an automatically locking folding side door mechanism for a food cart to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatically locking folding side door mechanism for a dining cart, comprising a side panel of the cart, two rotating rods rotatably connected to the side panel, each rotating rod having a side door fixedly connected to it, and a driven gear fixedly connected to each rotating rod at a position adjacent to the side door. An adjustment mechanism is provided on the back wall of the side panel, the adjustment mechanism comprising two sliding grooves and a support block, a bidirectional lead screw rotatably connected to the support block, a rotating handle fixedly connected to the bottom end of the bidirectional lead screw, a driving rack slidably connected inside each sliding groove, and an integral block fixedly connected to the back wall of each driving rack.

[0006] Preferably, two transparent glass panels are rotatably connected to the top side door, and each transparent glass panel has a handle fixedly connected to its back wall.

[0007] Preferably, the slides are all formed on the back wall of the side panel of the carriage, and the support block is fixedly connected to the middle position of the two slides on the back wall of the side panel of the carriage.

[0008] Preferably, the driven gears are located inside the slide grooves, and the driven gears are respectively meshed with the driving rack.

[0009] Preferably, the bidirectional lead screw is threadedly connected to two integrated blocks.

[0010] Compared with the prior art, the beneficial effects of this utility model are: when opening and closing the side door, only the bidirectional lead screw needs to be rotated to drive the various components in the adjustment mechanism to move in sequence, and the opening and closing operations of the upper and lower side doors can be completed at the same time, eliminating the tediousness of adjusting each door one by one in the traditional method. With the help of the thread characteristics of the bidirectional lead screw, the side door can be automatically locked in real time after opening or closing, without the need for additional manual limit. The entire process only requires a single rotation action. The opening and closing and locking of the side door can be completed synchronously by the forward and reverse rotation of the lead screw, which greatly improves the efficiency of human-machine interaction. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0013] Figure 3 This is a schematic diagram of the structure of the present invention where the active rack and the slide groove are separated;

[0014] Figure 4 This is a schematic diagram of the specific structure of the side door of this utility model.

[0015] In the diagram: 1. Side panel of the carriage; 2. Rotating rod; 3. Side door; 4. Driven gear; 5. Adjustment mechanism; 51. Slide groove; 52. Support block; 53. Double-acting lead screw; 54. Rotating handle; 55. Driving rack; 56. Connecting block; 6. Transparent glass; 7. Handle. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 The present invention provides the following technical solution:

[0018] Example 1: A folding side door mechanism for an automatically locking food cart includes a side panel 1. Two rotating rods 2 are rotatably connected to the side panel 1. A side door 3 is fixedly connected to each rotating rod 2. A driven gear 4 is fixedly connected to each rotating rod 2 at a position adjacent to the side door 3. An adjustment mechanism 5 is provided on the back wall of the side panel 1. The adjustment mechanism 5 includes two sliding grooves 51 and a support block 52. A bidirectional lead screw 53 is rotatably connected to the support block 52. A rotating handle 54 is fixedly connected to the bottom end of the bidirectional lead screw 53. A drive rack 55 is slidably connected inside each sliding groove 51. A connecting block 56 is fixedly connected to the back wall of each drive rack 55.

[0019] The slide grooves 51 are all opened on the back wall of the side panel 1 of the carriage. The support block 52 is fixedly connected to the middle position of the two slide grooves 51 on the back wall of the side panel 1 of the carriage. The driven gears 4 are located inside the slide grooves 51 respectively. The driven gears 4 are meshed with the driving rack 55 respectively. The bidirectional screw 53 is threadedly connected to the two connecting blocks 56.

[0020] In use, the operator can directly rotate the bidirectional lead screw 53 by rotating the handle 54. The rotation of the bidirectional lead screw 53 will drive the two connected blocks 56 to move simultaneously towards the support block 52. The movement of the connected blocks 56 will drive the corresponding active rack 55 to move. The movement of the active rack 55 will drive the corresponding driven gear 4 to rotate. The rotation of the driven gear 4 will drive the rotating rod 2 to rotate. The rotation of the rotating rod 2 will drive the side door 3 to rotate. At this time, the side door 3 will rotate outward of the side panel 1 of the carriage. When both side doors 3 have rotated 90° outward, the rotation of the bidirectional lead screw 53 can be stopped. When the bidirectional lead screw 53 is not rotating, its thread characteristics can fix the active rack 55 accordingly, thus completing the automatic limit of the opening and closing of the side door 3, which is highly convenient to operate.

[0021] Example 2: The technical solution that differs from Example 1 in this example includes: two transparent glass panels 6 are rotatably connected to the top side door 3, and handles 7 are fixedly connected to the back wall of each transparent glass panel 6;

[0022] When in use, the transparent glass 6 allows staff to view the outside of the food cart when the side door 3 is not open, and when the top side door 3 is not open, staff can use the handle 7 to open the corresponding transparent glass 6 for ventilation.

[0023] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-lockable folding side door mechanism for a dining car, characterized in that: The carriage includes a side panel (1), on which two rotating rods (2) are rotatably connected. Each rotating rod (2) is fixedly connected to a side door (3). Each rotating rod (2) is fixedly connected to a driven gear (4) at a position adjacent to the side door (3). The back wall of the carriage side panel (1) is provided with an adjustment mechanism (5). The adjustment mechanism (5) includes two sliding grooves (51) and a support block (52). A two-way lead screw (53) is rotatably connected to the support block (52). A rotating handle (54) is fixedly connected to the bottom end of the two-way lead screw (53). Each sliding groove (51) is slidably connected to an active rack (55). Each active rack (55) is fixedly connected to a connecting block (56) on the back wall of the active rack (55).

2. The self-locking folding side door mechanism of a dining car according to claim 1, characterized in that: Two transparent glass panels (6) are rotatably connected to the top side door (3), and handles (7) are fixedly connected to the back wall of each transparent glass panel (6).

3. The self-locking folding side door mechanism of a dining car according to claim 1, characterized in that: The slides (51) are all opened on the back wall of the side panel (1) of the carriage, and the support block (52) is fixedly connected to the middle position of the two slides (51) on the back wall of the side panel (1) of the carriage.

4. The self-locking folding side door mechanism of a dining car according to claim 1, characterized in that: The driven gears (4) are located inside the slide grooves (51) and are respectively meshed with the driving racks (55).

5. The self-locking folding side door mechanism of a dining car according to claim 1, characterized in that: The bidirectional lead screw (53) is threadedly connected to two connecting blocks (56).

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