Fireproof curtain structure for food passing opening of kitchen

Abstract

The utility model relates to the technical field of kitchen fire prevention, in particular to a kitchen dish passing opening fireproof curtain structure which comprises a wall body and a dish passing opening formed in the wall body, a transverse frame is installed at the position, above the dish passing opening, of the front end of the wall body, and longitudinal frames facing the dish passing opening are fixedly connected to the left side and the right side of the lower end of the transverse frame. Torsion spring rotating shafts which are vertically distributed are installed on the inner sides of the longitudinal frames, and fireproof curtains are wound around the outer portions of the torsion spring rotating shafts. According to the fireproof curtain structure, the fireproof curtain structure is composed of the transverse frame, the longitudinal frame, the servo motor, the double-thread screw, the transmission sliding block, the torsion spring rotating shaft, the fireproof curtain and the electric control part, and when a dish passing person gets close to a dish passing opening or after a chef places dishes, the fireproof curtain is actively or manually adjusted to conduct opening and closing operation; and the workload and difficulty of opening or closing the fireproof curtain in the actual dish passing process are effectively reduced, so that the convenience, efficiency and safety of the actual dish passing operation are improved.

Description

Technical Field

[0001] This utility model relates to the field of kitchen fire prevention technology, and in particular to a fireproof curtain structure for kitchen food delivery openings. Background Technology

[0002] Currently, according to fire safety technical specifications, fire-resistant partitions must be installed between the kitchen and the dining area. Dining areas are densely populated places, and if a kitchen fire is not properly controlled and spreads to the dining area, it can easily cause significant casualties. Therefore, separating the dining area and kitchen using brick walls, fire doors, or other methods can effectively prevent the spread of fire.

[0003] like Figure 4 As shown, this is the structure of the previous generation of fireproof curtains for kitchen food delivery. Its structure is similar to that of traditional lifting curtains. When adjusting the fireproof curtain, the operator needs to pull the traction rope. However, this type of fireproof curtain for kitchen food delivery has the following shortcomings in actual use: In the actual food delivery process, the food delivery staff in the restaurant need to pull the traction rope back and forth to adjust the fireproof curtain, or directly push open the bottom of the fireproof curtain to take out the food from the delivery opening with one hand. The entire food delivery process is affected by the fireproof curtain, which increases the workload, difficulty and risk of the food delivery staff. At the same time, adjusting the fireproof curtain can easily lead to the food coming into contact with contamination.

[0004] In view of this, it is particularly important to design and manufacture a fireproof curtain structure that facilitates the actual cooking and serving of food by chefs and food runners, and improves the convenience and efficiency of the actual food serving operation. Utility Model Content

[0005] The purpose of this utility model is to solve the problem that the traditional fireproof curtain structure for kitchen food delivery openings easily interferes with the actual food delivery operation, resulting in poor convenience and low efficiency in the actual food delivery operation. Therefore, a fireproof curtain structure for kitchen food delivery openings is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A fireproof curtain structure for a kitchen food delivery opening includes a wall and a food delivery opening on the wall. A horizontal frame is installed at the front end of the wall above the food delivery opening. Vertical frames facing the food delivery opening are fixedly connected to the left and right sides of the lower end of the horizontal frame. Vertically distributed torsion spring shafts are installed on the inner side of the vertical frames. Fireproof curtains are wound around the outside of the torsion spring shafts. An opening and closing mechanism for driving the two fireproof curtains to open and close laterally is provided between the free ends of the horizontal frame and the fireproof curtains.

[0008] As a further description of the above technical solution:

[0009] The opening and closing mechanism includes a servo motor mounted on the outer side of the left end of the crossbeam, a double-headed screw mounted on the right end of the servo motor and located inside the crossbeam, a transmission slider symmetrically mounted between the double-headed screw and the inner side of the crossbeam, an inner threaded sleeve fixed in the middle of the transmission slider and matching the double-headed screw, and a curtain pull frame fixed at the lower end of the transmission slider and between the free end of the fireproof curtain.

[0010] As a further description of the above technical solution:

[0011] An electrical control unit is installed between the crossbeam and the food delivery opening to control the automatic or manual operation of the opening and closing mechanism.

[0012] As a further description of the above technical solution:

[0013] The electronic control unit includes a camera installed at the middle of the front end of the crossbeam and tilted downwards, a distance sensor installed at the front end of the crossbeam and located to the right of the camera, and a microcomputer controller installed inside the food delivery opening.

[0014] As a further description of the above technical solution:

[0015] The output terminals of the camera and the distance sensor are electrically connected to the input terminal of the microcomputer controller, and the output terminal of the microcomputer controller is electrically connected to the input terminal of the servo motor.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0017] In this invention, the fireproof curtain structure consists of a horizontal frame, a vertical frame, a servo motor, a double-headed screw, a transmission slider, a torsion spring shaft, the fireproof curtain, and an electrical control system. When a server approaches the food delivery opening, a camera captures image data in front of the opening, while a distance sensor detects whether anyone is approaching. When the server is detected, the microcomputer controller actively controls the servo motor, causing the double-headed screw to rotate. Under the helical transmission between the double-headed screw and the inner screw sleeve, the two transmission sliders slide outward synchronously within the horizontal frame, thereby driving the fireproof curtain to move outward and roll up inside the vertical frame via the curtain puller. Simultaneously, the chef can directly control the servo motor by operating a control switch inside the frame. This structure allows for active or manual adjustment of the fireproof curtain's opening and closing when a server approaches the opening or after the chef places the food, effectively reducing the workload and difficulty of opening and closing the fireproof curtain during actual food delivery, thus improving the convenience, efficiency, and safety of the actual food delivery operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the open state of a fireproof curtain structure for a kitchen food delivery opening proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the present invention in the closed state;

[0020] Figure 3 This is a longitudinal sectional view of the cross frame and the longitudinal frame in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the fireproof curtain at the previous generation of kitchen food delivery openings in existing technology.

[0022] Legend:

[0023] 1. Wall; 101. Food delivery opening; 2. Horizontal frame; 201. Vertical frame; 3. Servo motor; 301. Double-ended screw; 4. Transmission slider; 401. Inner threaded sleeve; 402. Curtain pull frame; 5. Torsion spring shaft; 6. Fireproof curtain; 7. Camera; 8. Distance sensor; 9. Microcomputer controller. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a technical solution: a fireproof curtain structure for a kitchen food delivery opening, including a wall 1 and a food delivery opening 101 opened on the wall 1. A horizontal frame 2 is installed above the food delivery opening 101 at the front end of the wall 1. Vertical frames 201 facing the food delivery opening 101 are fixedly connected to the left and right sides of the lower end of the horizontal frame 2. Vertically distributed torsion spring shafts 5 are installed on the inner side of the vertical frames 201. Fireproof curtains 6 are wound around the outside of the torsion spring shafts 5. An opening and closing mechanism for driving the two fireproof curtains 6 to open and close laterally is provided between the free ends of the horizontal frame 2 and the fireproof curtains 6. The torsion spring shafts 5 have a certain degree of torsional force in the initial state, which allows the fireproof curtains 6 to automatically twist and roll up on the torsion spring shafts 5, while ensuring that the fireproof curtains 6 are always in a taut state.

[0026] Specifically, such as Figure 1-3As shown, the opening and closing mechanism includes a servo motor 3 mounted on the outer side of the left end of the crossbeam 2, a double-ended screw 301 mounted on the right end of the servo motor 3 and located inside the crossbeam 2, a transmission slider 4 symmetrically mounted between the double-ended screw 301 and the inner side of the crossbeam 2, an inner threaded sleeve 401 fixed in the middle of the transmission slider 4 and matching the double-ended screw 301, and a curtain puller 402 fixed at the lower end of the transmission slider 4 and between the free end of the fireproof curtain 6. The servo motor 3 can drive the double-ended screw 301 to rotate in the forward or reverse direction. Under the helical transmission action of the double-ended screw 301 and the inner threaded sleeve 401, the two transmission sliders 4 can move synchronously inward or outward within the crossbeam 2, thereby realizing the electric closing or electric opening operation of the curtain puller 402 on the fireproof curtain 6.

[0027] Specifically, such as Figure 1-3 As shown, an electrical control unit for controlling the automatic or manual operation of the opening and closing mechanism is provided between the crossbeam 2 and the food delivery opening 101. The electrical control unit includes a camera 7 installed at the front middle of the crossbeam 2 and tilted downwards, a distance sensor 8 installed at the front of the crossbeam 2 and located to the right of the camera 7, and a microcomputer controller 9 installed inside the food delivery opening 101. The output terminals of the camera 7 and the distance sensor 8 are electrically connected to the input terminal of the microcomputer controller 9, and the output terminal of the microcomputer controller 9 is electrically connected to the input terminal of the servo motor 3. The camera 7 and the distance sensor 8 can respectively collect image data and proximity data in front of the crossbeam 2 and the food delivery opening 101, and transmit the image data and distance data to the microcomputer controller 9 in real time for calculation, comparison and analysis, thereby controlling the servo motor 3 to rotate forward or backward, realizing the electric opening or closing of the fireproof curtain 6.

[0028] Specifically, the fireproof curtain 6 is made of fireproof asbestos material.

[0029] Working principle: During use, select the appropriate length and width of the horizontal frame 2 and vertical frame 201 according to the actual size of the food delivery opening 101. Then, install the horizontal frame 2 and vertical frame 201 at fixed points between the wall 1 and the food delivery opening 101. Connect the control circuit to the fire-fighting power supply or mains power. In actual use, the operator can set or adjust the working parameters of the fireproof curtain structure (detection range, detection sensitivity, and delay switching time settings, etc.) through the microcomputer controller 9. During the actual food delivery process, the chef can place the dish on the food delivery opening 101 and then operate the microcomputer controller 9 to control the servo motor 3. The servo motor 3 will then drive the double-headed screw 301 to rotate, and the spiral transmission between the double-headed screw 301 and the inner threaded sleeve 401... Under the action, the two transmission sliders 4 can slide outward synchronously within the crossbeam 2, and the curtain frame 402 can drive the fireproof curtain 6 to gradually twist and roll up onto the torsion spring shaft 5, thus realizing the manual opening operation of the fireproof curtain 6. At the same time, when the food runner gradually approaches the food delivery opening 101 in the restaurant, the camera 7 in front of the crossbeam 2 can collect image data in front of the food delivery opening 101 in real time. Meanwhile, the distance sensor 8 can collect distance data of whether a person is gradually approaching the food delivery opening 101. The camera 7 and the distance sensor 8 can transmit the collected data to the microcomputer controller 9 for calculation, comparison and analysis, and then control the servo motor 3 to work actively, driving the two fireproof curtains 6 to unfold outward synchronously, thereby realizing the automatic opening operation of the fireproof curtain 6 when approaching.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fireproof curtain structure for a kitchen food delivery opening, comprising a wall (1) and a food delivery opening (101) formed in the wall (1), characterized in that, A horizontal frame (2) is installed at the front end of the wall (1) above the food delivery opening (101). The lower left and right sides of the horizontal frame (2) are fixedly connected to vertical frames (201) facing the food delivery opening (101). Vertically distributed torsion spring shafts (5) are installed on the inner side of the vertical frames (201). Fireproof curtains (6) are wrapped around the outside of the torsion spring shafts (5). An opening and closing mechanism for driving the two fireproof curtains (6) to open and close laterally is provided between the free ends of the horizontal frame (2) and the fireproof curtains (6).

2. The fireproof curtain structure for a kitchen food delivery opening according to claim 1, characterized in that, The opening and closing mechanism includes a servo motor (3) installed on the outer side of the left end of the cross frame (2), a double-headed screw (301) installed on the right end of the servo motor (3) and located inside the cross frame (2), a transmission slider (4) symmetrically installed between the double-headed screw (301) and the inner side of the cross frame (2), an inner thread sleeve (401) fixed in the middle of the transmission slider (4) and matching the double-headed screw (301), and a curtain pull frame (402) fixed at the lower end of the transmission slider (4) and between the free end of the fireproof curtain (6).

3. The fireproof curtain structure for a kitchen food delivery opening according to claim 1, characterized in that, An electrical control unit for controlling the automatic or manual operation of the opening and closing mechanism is provided between the cross frame (2) and the food delivery port (101).

4. The fireproof curtain structure for a kitchen food delivery opening according to claim 3, characterized in that, The electronic control unit includes a camera (7) installed at the middle of the front end of the crossbeam (2) and tilted downwards, a distance sensor (8) installed at the front end of the crossbeam (2) and located to the right of the camera (7), and a microcomputer controller (9) installed inside the food delivery opening (101).

5. The fireproof curtain structure for a kitchen food delivery opening according to claim 4, characterized in that, The output terminals of the camera (7) and the distance sensor (8) are electrically connected to the input terminal of the microcomputer controller (9), and the output terminal of the microcomputer controller (9) is electrically connected to the input terminal of the servo motor (3).

Images