Intelligent pneumatic door lock for universal steaming oven

The design of the intelligent pneumatic door lock solves the problem of traditional equipment lacking automatic door opening and closing, realizing intelligent control and self-locking function of the equipment door, ensuring that the equipment door can still be locked when the electrical control fails, and is suitable for equipment with doors such as steam ovens.

CN224187348UActive Publication Date: 2026-05-01SHANGHAI SHIWEI BAISHEN TECHNOLOGY DEVELOPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI SHIWEI BAISHEN TECHNOLOGY DEVELOPMENT CO LTD
Filing Date
2025-04-10
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional equipment with doors lacks automatic door opening and closing functions, and especially in situations where motor installation is not suitable, it is impossible to achieve fully automated control of the equipment.

Method used

The intelligent pneumatic door lock utilizes components such as cylinders, telescopic rods, connectors, and spring pins. The extension and retraction of the cylinders drives the connectors and connecting rods to achieve a self-locking effect, ensuring that the equipment door can still be locked when the air supply fails, and can be switched to manual mode.

Benefits of technology

It achieves intelligent automatic control of equipment doors, reduces unattended automation time, has a simple structure and does not take up space, and can switch between manual or electronic control systems to ensure that the equipment doors can still be locked in the event of electronic control failure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an intelligent pneumatic door lock for a universal steaming oven, and relates to the field of steaming ovens, the intelligent pneumatic door lock comprises an air cylinder fixedly mounted on one side of a mounting plate, a telescopic rod is mounted at the output end of the air cylinder, a connecting piece is hinged to one end of the telescopic rod, and a connecting rod is hinged to the bottom of the connecting piece; a cylinder is rotationally mounted at the end, away from the connecting piece, of the connecting rod, and a guide block is movably mounted on one side of the mounting plate. The spring pin drives the axis, the self-locking effect can be achieved after the air cylinder drives the telescopic rod to drive the connecting rod to be in place when the connecting piece is contracted, the effect that an equipment door can still be locked after air is cut off is guaranteed, and due to the spring pin, the manual mode can be switched to when electric control and an air source fail; the spring pin and the guide block drive the tail end of the shaft center to swing and release, the purpose of locking an equipment door is achieved, in-place mechanical locking is achieved through the connecting rod structure, and the situation that an air source fails and a power source fails is avoided.
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Description

A smart pneumatic door lock for a multi-purpose steam oven Technical Field

[0001] This application relates to the field of steam ovens, and more particularly to a smart pneumatic door lock for a universal steam oven. Background Technology

[0002] With the continuous development of the catering industry and the advancement of intelligent technology, the requirements for automation of kitchen equipment are getting higher and higher. Many devices with doors (steam ovens, freezers, warming cabinets, etc.) need to have automatic door opening and closing functions, but it is not suitable to install motors on the equipment doors. Most traditional equipment does not yet have this function. Therefore, in order to solve the problem of converting traditional equipment into fully automated equipment, this product was designed. It can automatically control the locking or opening of the equipment door and tighten the tension according to different depths and the amount of force to ensure a seal. Summary of the Invention

[0003] In order to enable intelligent opening and closing of devices with doors and reduce unattended automation time, this application provides an intelligent pneumatic door lock for a universal steam oven.

[0004] This application provides a smart pneumatic door lock for a universal steam oven, employing the following technical solution: It includes a cylinder fixedly installed on one side of a mounting plate. A telescopic rod is installed at the output end of the cylinder. A connector is hinged to one end of the telescopic rod, and a connecting rod is hinged to the bottom of the connector. A cylinder is rotatably installed at the end of the connecting rod away from the connector. A guide block is movably installed on one side of the mounting plate. A fixing post and a fixing component are fixedly installed on one side of the mounting plate. A spring pin is provided at one end of the cylinder, and one end of the spring pin is fixedly connected to the fixing post. A shaft is provided at the bottom of the guide block.

[0005] By adopting the above technical solution, the main power in this equipment is a special cylinder whose pressure can adapt to the feedback force of the object being subjected to the force. The cylinder extends and retracts through the telescopic rod, which drives the connecting parts and the connecting rod. The spring pin drives the shaft, so that when the cylinder drives the telescopic rod to retract the connecting parts, the connecting rod will have a self-locking effect after it reaches the position, ensuring that the equipment door can still be locked after the air supply is cut off.

[0006] Preferably, a support rod is fixedly installed on one side of the mounting plate, and a support column is fixedly installed on one side of the mounting plate. The support rod and the support column are fixedly installed together, and the support column and the connector are rotatably installed together.

[0007] By adopting the above technical solution, the rotational installation of the connector can be supported and limited, preventing displacement of the connector and allowing the connector to drive the connecting rod to move more effectively.

[0008] Preferably, a mounting hole is provided on one side of the mounting plate, and the mounting plate is fixedly installed by mounting nails passing through the mounting hole.

[0009] By adopting the above technical solution, the mounting plate can be fixedly installed in the position corresponding to the door of the steam oven using mounting nails, thereby increasing the stability of the equipment installation.

[0010] Preferably, a first straight groove is provided on one side of the guide block, and a positioning bolt for positioning is provided on the inner side of the first straight groove, and the positioning bolt is fixedly connected to the cylinder.

[0011] By adopting the above technical solution, the position of the cylinder within the guide block can be adjusted, enabling the initial positioning adjustment of the cylinder after installation. When the connecting rod applies external force to the spring pin, the spring pin and the guide block can drive the end of the shaft to swing and release, thereby achieving the purpose of locking the equipment door. Thus, the initial position of the cylinder can be determined by fixing the positioning bolt.

[0012] Preferably, four second straight grooves are provided on one side of the guide block, and the four second straight grooves are respectively arranged to correspond to the positions of adjacent fixed posts and adjacent fixed parts.

[0013] By adopting the above technical solution, the second straight groove can be restricted by the fixed column and the fixed component when the guide block moves, so as to ensure the stability of the guide block's movement and better drive the shaft to lock the equipment door.

[0014] Preferably, a fixing seat is fixedly installed at the bottom of the mounting plate, the shaft passes through the fixing seat, and the fixing seat is movably sleeved with the shaft.

[0015] By adopting the above technical solution, the movement of the shaft can be restricted, ensuring that the shaft can smoothly open or close the door.

[0016] Preferably, a rubber pad is fixedly installed on the side of the mounting plate near the bottom of the guide block, and the rubber pad corresponds to the bottom position of the guide block.

[0017] By adopting the above technical solution, when the guide block moves downward and drives the shaft to move, the hard collision between the guide block and the mounting plate is reduced, which plays a role in protecting the bottom of the guide block.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. The spring pin drives the shaft, which achieves a self-locking effect when the cylinder drives the telescopic rod to retract and the connecting rod is in place. This ensures that the equipment door can still be locked after the air supply is cut off. Due to the spring pin, the manual mode can be switched when the electric control and air supply fail. The spring pin and guide block drive the end of the shaft to swing and release, thus locking the equipment door. This equipment achieves mechanical locking in place through the connecting rod structure and will not fail due to the failure of the air supply or power supply.

[0020] 2. The equipment has a simple and compact structure, with dimensions similar to those of manual operation parts, and does not take up much space. The equipment can realize intelligent opening and closing of equipment with doors, reducing unattended automation time. It can be used interchangeably between manual and electrical control systems without connection, and the switching is simple and convenient. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the overall structure of an intelligent pneumatic door lock for a universal steam oven according to an embodiment of this application;

[0022] Figure 2 is a schematic diagram showing the main three-dimensional structure from a bottom view in the embodiment of this application;

[0023] Figure 3 is a schematic diagram of the front-view three-dimensional structure of the embodiment of this application;

[0024] Figure 4 is a schematic diagram of the rear-view three-dimensional structure of the embodiment of this application;

[0025] Reference numerals: 1. Mounting plate; 2. Mounting hole; 3. Cylinder; 4. Telescopic rod; 5. Support rod; 6. Support column; 7. Connecting piece; 8. Connecting rod; 9. Guide block; 10. Cylinder; 11. Fixed column; 12. Spring pin; 13. Positioning bolt; 14. First straight groove; 15. Second straight groove; 16. Fixing piece; 17. Rubber pad; 18. Fixed seat; 19. Shaft. Detailed Implementation

[0026] The present application will be further described in detail below with reference to Figures 1-4.

[0027] This application discloses an intelligent pneumatic door lock for a universal steam oven, including a cylinder 3 fixedly installed on one side of a mounting plate 1. A telescopic rod 4 is installed at the output end of the cylinder 3. A connector 7 is hinged to one end of the telescopic rod 4. A connecting rod 8 is hinged to the bottom of the connector 7. A cylinder 10 is rotatably installed at the end of the connecting rod 8 away from the connector 7. A guide block 9 is movably installed on one side of the mounting plate 1. A fixing post 11 and a fixing member 16 are fixedly installed on one side of the mounting plate 1. A spring pin 12 is provided at one end of the cylinder 10. One end of the spring pin 12 is fixedly connected to the fixing post 11. A shaft 19 is provided at the bottom of the guide block 9.

[0028] By setting up cylinder 3, telescopic rod 4, connector 7, and connecting rod 8, the main power in this equipment is a special cylinder 3 whose pressure can adapt to the feedback force of the object being stressed. Cylinder 3, through the telescopic rod 4, extends and retracts, driving connector 7 and connecting rod 8. Through spring pin 12, it drives shaft 19, achieving a self-locking effect when cylinder 3 drives telescopic rod 4 to retract connector 7 and then drives connecting rod 8 to its position. This ensures that the equipment door can still be locked after the air supply is cut off.

[0029] Referring to Figures 1 and 2, a support rod 5 is fixedly installed on one side of the mounting plate 1, and a support column 6 is fixedly installed on one side of the mounting plate 1. The support rod 5 and the support column 6 are fixedly installed, and the support column 6 and the connector 7 are rotatably installed.

[0030] By setting support rod 5 and support column 6, the rotation installation of connector 7 can be supported and limited, preventing connector 7 from shifting and allowing connector 7 to drive the connecting rod 8 to move.

[0031] Referring to Figures 1 and 2, a mounting hole 2 is provided on one side of the mounting plate 1. The mounting plate 1 is fixedly installed by mounting nails passing through the mounting hole 2.

[0032] By setting the mounting hole 2, the mounting plate 1 can be fixedly installed in the position corresponding to the door of the steam oven using mounting nails, increasing the stability of the installation of this equipment.

[0033] Referring to Figures 1 and 2, a first straight groove 14 is provided on one side of the guide block 9, and a positioning bolt 13 for positioning is provided on the inner side of the first straight groove 14. The positioning bolt 13 is fixedly connected to the cylinder 10.

[0034] By setting the positioning bolt 13, the position of the cylinder 10 within the guide block 9 can be adjusted, so that the initial position of the cylinder 10 can be adjusted after installation. When the connecting rod 8 applies external force to the spring pin 12, the spring pin 12 and the guide block 9 can drive the end of the shaft 19 to swing and release, thereby locking the equipment door. Thus, the initial position of the cylinder 10 can be determined by fixing the positioning bolt 13.

[0035] Referring to Figures 1 and 2, four second straight grooves 15 are provided on one side of the guide block 9. The four second straight grooves 15 are respectively positioned corresponding to the adjacent fixed posts 11 and adjacent fixing parts 16.

[0036] By setting the second straight groove 15, the guide block 9 can be restricted by the fixed column 11 and the fixing member 16 when it moves, so as to ensure the stability of the movement of the guide block 9 and better drive the shaft 19 to lock the equipment door.

[0037] Referring to Figures 1 and 2, a fixed base 18 is fixedly installed on the bottom of the mounting plate 1, and the shaft 19 passes through the fixed base 18, and the fixed base 18 and the shaft 19 are movably connected.

[0038] By setting the fixed seat 18, the movement of the shaft 19 can be restricted, ensuring that the shaft 19 can smoothly open or close the door.

[0039] Referring to Figures 1 and 2, a rubber pad 17 is fixedly installed on the side of the mounting plate 1 near the bottom of the guide block 9, and the rubber pad 17 corresponds to the bottom position of the guide block 9.

[0040] By setting the rubber pad 17, when the guide block 9 moves downward and drives the shaft 19 to move, the hard collision between the guide block 9 and the mounting plate 1 is reduced, which plays a role in protecting the bottom of the guide block 9.

[0041] The implementation principle of the intelligent pneumatic door lock for a universal steam oven in this application embodiment is as follows: When the system receives an open command, the dedicated cylinder 3 drives the telescopic rod 4 to extend, causing the connecting part 7 to rotate and the connecting rod 8 to move. Through the spring pin 12, the shaft 19 extends, triggering the cylinder detection positioning switch, and the system stops. When the system receives a close command, the dedicated cylinder 3 drives the telescopic rod 4 to retract, causing the connecting part 7 to rotate and the connecting rod 8 to move. Through the spring pin 12, the shaft 19 retracts, triggering the cylinder detection positioning switch, and the system stops. Through the design of the spring pin 12, it can switch to manual mode when the electric control and gas source fail. The spring pin 12 and the guide block 9 drive the end of the shaft 19 to swing and release, achieving the purpose of locking the equipment door. This equipment achieves mechanical locking in place through the connecting rod 8 structure, and will not fail due to the failure of the gas source or power supply.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A smart pneumatic door lock for a universal steam oven, characterized in that: The system includes a cylinder (3) fixedly mounted on one side of the mounting plate (1), a telescopic rod (4) mounted on the output end of the cylinder (3), a connector (7) hinged to one end of the telescopic rod (4), a connecting rod (8) hinged to the bottom of the connector (7), a cylinder (10) rotatably mounted on the end of the connecting rod (8) away from the connector (7), a guide block (9) movably mounted on one side of the mounting plate (1), a fixing column (11) and a fixing member (16) fixedly mounted on one side of the mounting plate (1), a spring pin (12) provided at one end of the cylinder (10), a spring pin (12) fixedly connected to the fixing column (11) at one end, and a shaft (19) provided at the bottom of the guide block (9).

2. The intelligent pneumatic door lock for a universal steam oven according to claim 1, characterized in that: A support rod (5) is fixedly installed on one side of the mounting plate (1), and a support column (6) is fixedly installed on one side of the mounting plate (1). The support rod (5) and the support column (6) are fixedly installed, and the support column (6) and the connector (7) are rotatably installed.

3. The intelligent pneumatic door lock for a universal steam oven according to claim 2, characterized in that: The mounting plate (1) has a mounting hole (2) on one side, and the mounting plate (1) is fixedly installed by mounting nails passing through the mounting hole (2).

4. The intelligent pneumatic door lock for a universal steam oven according to claim 3, characterized in that: The guide block (9) has a first straight groove (14) on one side, and a positioning bolt (13) for positioning is provided on the inner side of the first straight groove (14). The positioning bolt (13) is fixedly connected to the cylinder (10).

5. The intelligent pneumatic door lock for a universal steam oven according to claim 4, characterized in that: The guide block (9) has four second straight grooves (15) on one side, and the four second straight grooves (15) are respectively positioned corresponding to the adjacent fixed post (11) and the adjacent fixed member (16).

6. The intelligent pneumatic door lock for a universal steam oven according to claim 5, characterized in that: A fixing seat (18) is fixedly installed at the bottom of the mounting plate (1), and the shaft (19) passes through the fixing seat (18), and the fixing seat (18) is movably connected to the shaft (19).

7. The intelligent pneumatic door lock for a universal steam oven according to claim 6, characterized in that: A rubber pad (17) is fixedly installed on the side of the mounting plate (1) near the bottom of the guide block (9), and the rubber pad (17) corresponds to the bottom position of the guide block (9).