An air induction device for an electrically operated steel plate lift gate for a mail processing plant
By combining a sealed airbag buffer pad and an air sensor in the electric steel plate lifting door, the problems of cargo crushing and personnel injury caused by identification errors have been solved, achieving safe production and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST CONSTR CO LTD OF CHINA CONSTR FIRST GRP
- Filing Date
- 2025-06-17
- Publication Date
- 2026-07-31
AI Technical Summary
Existing electric steel plate lifting doors are prone to causing damage to goods and injuries to people when they are misidentified.
The design combines a sealed airbag buffer pad with an air sensor. The deformation of the airbag buffer pad detects pressure changes, which controls the movement of the lifting door to avoid injury to personnel and damage to goods. The air pressure signal is transmitted and processed through connecting components and circuit boards.
It effectively avoids personal injury and cargo damage, ensures the continuity of the production process, and provides convenient maintenance methods.
Smart Images
Figure CN224579257U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lifting door technology, and in particular to an air sensor device for an electric steel plate lifting door in a mail processing workshop. Background Technology
[0002] Lifting doors are industrial doors that open and close by vertical lifting. They are usually made of metal (such as steel plates or aluminum alloys) or composite materials. The door moves vertically along the wall or track and is suitable for industrial, logistics and warehousing places that require frequent passage or have limited space.
[0003] A search revealed Chinese Patent Publication No. CN218361067U, which discloses a cargo transition dust removal chamber. The chamber includes a box body with symmetrical door frames at both ends, each containing a roller shutter. Multiple sets of spray nozzles are symmetrically arranged on both sides of the interior of the box. Each spray nozzle has a high-efficiency filter at its rear end and a fan at its lower end. The advantages of this invention are: increased volume of the dust removal chamber; added safety airbags at the bottom of the box for enhanced safety; and more energy-efficient multiple photoelectric sensors that activate the air shower upon detecting cargo or personnel. A safety light curtain on the roller shutter lowers the curtain and activates the air shower after all personnel and cargo have entered the chamber. The two filters significantly improve air filtration efficiency.
[0004] However, existing lifting doors typically use infrared beam detectors installed on both sides of the door to prevent the electric steel plate lifting door from descending. But after this device is installed, when workers transport mail through the electric steel plate lifting door into the carriage, the infrared beam detectors may misidentify the mail, resulting in damage to the goods and injury to personnel. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides an air sensor device for an electric steel plate lifting door in a mail processing workshop, which aims to improve the problem of goods being crushed and damaged or personnel being injured due to incorrect recognition by infrared beam devices.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] An air sensor device for an electric steel plate lifting door in a mail processing workshop includes a wall. A lifting door body is disposed inside the wall. A sealed airbag buffer pad is fixedly connected to the lower surface of the lifting door body. A conduit is disposed inside the sealed airbag buffer pad. A bottom shell is disposed on the outer wall of the lifting door body. A top cover is disposed on the outer wall of the bottom shell. A connecting bolt is threaded into the bottom shell. An air nozzle is fixedly connected inside the bottom shell. A connecting pipe is disposed at the top of the air nozzle. A connecting assembly is disposed on the outer wall of the air nozzle. The connecting assembly is connected to the connecting pipe. A circuit board is fixedly connected to the inner wall of the bottom shell. The circuit board is electrically connected to the connecting pipe.
[0008] The above technical solution involves driving the lifting door body to move vertically inside the wall. The lifting door body causes the sealed airbag buffer pad to move synchronously. When the sealed airbag buffer pad comes into contact with personnel or goods and is deformed by pressure, the internal gas is transmitted to the air nozzle through the conduit. The air nozzle is connected to the connecting pipe through the connecting component and transmits the air pressure change to the circuit board. The circuit board has a built-in standard air sensor. By detecting the pressure change inside the sealed airbag buffer pad, it triggers a pressure signal and controls the lifting door body to stop the descent and perform a slow-rise reset operation. This can avoid personnel injury, prevent goods from being squeezed and damaged by the lifting door body, and ensure smooth production.
[0009] As a further description of the above technical solution:
[0010] The connecting assembly includes a first connecting block, the outer wall of which is fixedly connected to the outer wall of the air nozzle, a second connecting block on the upper surface of the first connecting block, and a second connecting bolt threadedly connected to the inside of the first connecting block.
[0011] The above technical solution involves connecting the air nozzle to the connecting pipe, aligning connecting block one with connecting block two, and then tightening connecting bolt two to complete the fastening connection between the two. This seals the gap between the air nozzle and the connecting pipe, blocking the intrusion of external impurities and dust.
[0012] As a further description of the above technical solution:
[0013] The inner wall of the second connecting block is fixedly connected to the outer wall of the connecting pipe, and the outer wall of the second connecting bolt is threadedly connected to the inside of the second connecting block.
[0014] Through the above technical solution, connecting block one and connecting block two constitute a protective area for the interface area of the air nozzle and connecting pipe.
[0015] As a further description of the above technical solution:
[0016] The outer wall of the connecting bolt is threaded into the inside of the upper cover, and the outer wall of the air nozzle is located inside the conduit.
[0017] The above technical solution involves connecting the bottom shell and the top cover with connecting bolts to form a sealed space inside to protect the circuit board.
[0018] As a further description of the above technical solution:
[0019] A fixing block is fixedly connected to the outer wall of the bottom shell, and a mounting block one is fixedly connected to the side wall of the fixing block, and a mounting block two is fixedly connected to the side wall of the fixing block.
[0020] Through the above technical solution: the bottom shell is used to provide the mounting position of the parts, and the mounting block and the fixing block are used to limit the sliding range of the locking block.
[0021] As a further description of the above technical solution:
[0022] The inner wall of the first mounting block is slidably connected to a locking block, and the outer wall of the locking block is slidably connected to the inner wall of the second mounting block. The outer wall of the locking block is located inside the bottom shell.
[0023] The above technical solution uses a locking block to fix the bottom shell and prevent it from falling off.
[0024] As a further description of the above technical solution:
[0025] The outer wall of the card block is fixedly connected to a first limiting block, the outer wall of the card block is fixedly connected to a second limiting block, the outer wall of the second limiting block is fixedly connected to a toggle block, the outer wall of the toggle block is disposed inside the fixed block, the inner wall of the second limiting block is disposed to a return spring, and the outer wall of the return spring is disposed inside the first mounting block.
[0026] The above technical solution involves operating the lever to drive the locking block to move synchronously with the second limit block. Subsequently, the reset spring undergoes elastic deformation due to the displacement, causing the locking block to disengage from the locking state inside the bottom shell. This achieves controllable separation between the bottom shell and the lifting door body, enabling quick removal of the bottom shell and facilitating regular maintenance and replacement of damaged parts by the user.
[0027] As a further description of the above technical solution:
[0028] The outer wall of the first limiting block is disposed on the outer wall of the first mounting block, and the outer wall of the second limiting block is disposed on the outer wall of the second mounting block.
[0029] The above technical solution uses limit block one and limit block two to prevent the card from falling off.
[0030] This utility model has the following beneficial effects:
[0031] 1. In this utility model, the lifting door body is raised and lowered by starting the lifting door body, and then the sealed airbag buffer pad moves synchronously under the drive of the lifting door body. When the sealed airbag buffer pad touches the staff or goods, the sealed airbag buffer pad deforms, thereby preventing the risk of personnel injury, reducing the damage to goods caused by the mechanical pressure of the lifting door body, and ensuring the continuity of the production operation process.
[0032] 2. In this utility model, by pulling the lever, the locking block slides under the action of the second limiting block, and then the return spring undergoes elastic deformation under the action of the second limiting block, thereby achieving the effect of quickly removing the bottom shell, which facilitates the user to perform routine maintenance on the internal components and replace damaged parts. Attached Figure Description
[0033] Figure 1 This is a three-dimensional structural diagram of an air sensor device for an electric steel plate lifting door in a mail processing workshop, as proposed in this utility model.
[0034] Figure 2 This is a partial structural diagram of the air nozzle of the air sensor device for an electric steel plate lifting door in a mail processing workshop, as proposed in this utility model.
[0035] Figure 3 This is a partial structural diagram of the bottom shell of an air sensor device for an electric steel plate lifting door in a mail processing workshop, as proposed in this utility model.
[0036] Figure 4 This is a partial structural diagram of the connecting block of the air sensor device for the electric steel plate lifting door of the mail processing workshop proposed in this utility model.
[0037] Figure 5 This is a partial structural diagram of the reset spring of the air sensor device for an electric steel plate lifting door in a mail processing workshop, as proposed in this utility model.
[0038] Legend:
[0039] 1. Wall; 2. Lifting door body; 3. Sealed airbag buffer pad; 4. Conduit; 5. Bottom shell; 6. Top cover; 7. Connecting bolt one; 8. Air nozzle; 9. Connecting assembly; 91. Connecting block one; 92. Connecting block two; 93. Connecting bolt two; 10. Circuit board; 11. Connecting pipe; 12. Fixing block; 13. Mounting block one; 14. Mounting block two; 15. Locking block; 16. Limiting block one; 17. Limiting block two; 18. Pulling block; 19. Return spring. Detailed Implementation
[0040] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0041] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model is provided: an air sensor device for an electric steel plate lifting door in a mail processing workshop, including a wall 1, a lifting door body 2 inside the wall 1, a sealed airbag buffer pad 3 fixedly connected to the lower surface of the lifting door body 2, a conduit 4 inside the sealed airbag buffer pad 3, a bottom shell 5 on the outer wall of the lifting door body 2, a top cover 6 on the outer wall of the bottom shell 5, a connecting bolt 7 threadedly connected inside the bottom shell 5, an air nozzle 8 fixedly connected inside the bottom shell 5, a connecting pipe 11 at the top of the air nozzle 8, a connecting component 9 on the outer wall of the air nozzle 8, the connecting component 9 connected to the connecting pipe 11, and a circuit board 10 fixedly connected to the inner wall of the bottom shell 5, the circuit board 10 and the connecting pipe 11 being electrically connected.
[0042] Specifically, by activating the lifting door body 2, the lifting door body 2 is raised and lowered inside the wall 1. Since the lifting door body 2 is fixedly connected to the sealed airbag buffer pad 3, the sealed airbag buffer pad 3 moves synchronously under the action of the lifting door body 2. When the sealed airbag buffer pad 3 touches the staff or goods, the sealed airbag buffer pad 3 is compressed, and the air is transmitted to the air nozzle 8 along the duct 4. The air nozzle 8 is connected to the connecting pipe 11 through the connecting component 9. Then the air is transmitted to the circuit board 10 along the connecting pipe 11. The circuit board 10 has a built-in air sensor. The air sensor is existing technology and will not be described in detail. Subsequently, the circuit board 10 receives the change in the air pressure inside the sealed airbag buffer pad 3 and sends a command to drive the lifting door body 2 to stop descending and slowly rise. This can achieve the effect of avoiding personnel injury, preventing goods from being squeezed and damaged by the lifting door body 2, and ensuring smooth production.
[0043] Reference Figure 4 The connecting component 9 includes a first connecting block 91, the outer wall of the first connecting block 91 is fixedly connected to the outer wall of the air nozzle 8, a second connecting block 92 is provided on the upper surface of the first connecting block 91, and a second connecting bolt 93 is threadedly connected inside the first connecting block 91.
[0044] Specifically, by connecting the air nozzle 8 to the connecting pipe 11, connecting block 1 91 and connecting block 2 92 are aligned. Then, the connecting bolt 2 93 is rotated to connect connecting block 1 91 and connecting block 2 92, thereby preventing impurities and dust from entering the connection between the air nozzle 8 and the connecting pipe 11.
[0045] Reference Figure 4 The inner wall of connecting block 2 92 is fixedly connected to the outer wall of connecting pipe 11, and the outer wall of connecting bolt 2 93 is threadedly connected to the inside of connecting block 2 92;
[0046] Specifically, connecting block 1 91 and connecting block 2 92 are used at the connection between the protective air nozzle 8 and the connecting pipe 11.
[0047] Reference Figure 3 The outer wall of the connecting bolt 7 is threaded into the inside of the upper cover 6, and the outer wall of the air nozzle 8 is set inside the conduit 4;
[0048] Specifically, connecting bolt 7 is used to connect the bottom shell 5 and the top cover 6.
[0049] Reference Figure 1 and Figure 5 A fixing block 12 is fixedly connected to the outer wall of the bottom shell 5. A mounting block 13 is fixedly connected to the side wall of the fixing block 12, and a mounting block 2 14 is fixedly connected to the side wall of the fixing block 12. A locking block 15 is slidably connected to the inner wall of the mounting block 13, and the outer wall of the locking block 15 is slidably connected to the inner wall of the mounting block 2 14. The outer wall of the locking block 15 is located inside the bottom shell 5. A limiting block 16 is fixedly connected to the outer wall of the locking block 15, and a limiting block 2 17 is fixedly connected to the outer wall of the locking block 15. A toggle block 18 is fixedly connected to the outer wall of the limiting block 2 17, and the outer wall of the toggle block 18 is located inside the fixing block 12. A return spring 19 is located inside the limiting block 2 17, and the outer wall of the return spring 19 is located inside the mounting block 13. The outer wall of the limiting block 16 is located on the outer wall of the mounting block 13, and the outer wall of the limiting block 2 17 is located on the outer wall of the mounting block 2 14.
[0050] Specifically, by pulling the lever 18 to move inside the fixed block 12, since the lever 18 is fixedly connected to the second limiting block 17, and the second limiting block 17 is fixedly connected to the locking block 15, the locking block 15 slides inside the mounting block 13 under the action of the second limiting block 17. The second mounting block 14 is used to limit the sliding range of the locking block 15, while the first limiting block 16 and the second limiting block 17 are used to prevent the locking block 15 from falling off. Subsequently, the return spring 19 undergoes elastic deformation under the action of the second limiting block 17. The return spring 19 is used to assist the locking block 15 in locking into the interior of the bottom shell 5. At this time, the locking block 15 disengages from the interior of the bottom shell 5, and the bottom shell 5 can be separated from the surface of the lifting door body 2. This achieves the effect of quickly removing the bottom shell 5, which is convenient for users to regularly maintain the internal parts of the bottom shell 5 and replace damaged parts.
[0051] Working principle: The lifting door body 2 is raised and lowered by starting the lifting door body 2. Then, the sealed airbag buffer pad 3 moves synchronously under the drive of the lifting door body 2. When the sealed airbag buffer pad 3 touches the staff or goods, the sealed airbag buffer pad 3 deforms. The air inside the sealed airbag buffer pad 3 is transmitted to the air nozzle 8 along the duct 4 and the air nozzle 8 is connected to the connecting pipe 11. At this time, the connecting block 1 91 and the connecting block 2 92 are aligned. Then, the connecting bolt 2 93 is rotated to connect the connecting block 1 91 and the connecting block 2 92. Then, the air is transmitted to the circuit board 10 along the connecting pipe 11. The circuit board 10 has a built-in air sensor. Then, the circuit board 10 receives the change in the air pressure inside the sealed airbag buffer pad 3 and sends a command to drive the lifting door body 2 to stop descending and slowly rise. This can prevent the risk of personnel injury, reduce the damage to goods caused by the mechanical pressure of the lifting door body 2, and ensure the continuity of the production operation process.
[0052] By pulling the lever 18, the locking block 15 slides under the action of the second limiting block 17. Then, the return spring 19 undergoes elastic deformation under the action of the second limiting block 17. At this time, the locking block 15 disengages from the inside of the bottom shell 5, and the bottom shell 5 can be separated from the surface of the lifting door body 2. This allows for quick removal of the bottom shell 5, making it convenient for users to regularly maintain the internal parts of the bottom shell 5 and replace damaged parts.
[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A mail processing plant electrically operated steel plate overhead door air induction device comprising a wall (1) characterized by: The interior of the wall (1) is provided with a lifting door body (2). A sealed airbag buffer pad (3) is fixedly connected to the lower surface of the lifting door body (2). A conduit (4) is provided inside the sealed airbag buffer pad (3). A bottom shell (5) is provided on the outer wall of the lifting door body (2). A top cover (6) is provided on the outer wall of the bottom shell (5). A connecting bolt (7) is threadedly connected inside the bottom shell (5). An air nozzle (8) is fixedly connected inside the bottom shell (5). A connecting pipe (11) is provided at the top of the air nozzle (8). A connecting component (9) is provided on the outer wall of the air nozzle (8). The connecting component (9) is connected to the connecting pipe (11). A circuit board (10) is fixedly connected to the inner wall of the bottom shell (5). The circuit board (10) is electrically connected to the connecting pipe (11).
2. A mail processing plant electrically powered steel plate overhead door air induction system according to claim 1 wherein: The connecting component (9) includes a connecting block one (91), the outer wall of the connecting block one (91) is fixedly connected to the outer wall of the air nozzle (8), the upper surface of the connecting block one (91) is provided with a connecting block two (92), and the inner thread of the connecting block one (91) is connected with a connecting bolt two (93).
3. A mail processing plant electrically powered steel plate overhead door air sensing device according to claim 2 wherein: The inner wall of the second connecting block (92) is fixedly connected to the outer wall of the connecting pipe (11), and the outer wall of the second connecting bolt (93) is threadedly connected to the inside of the second connecting block (92).
4. A mail processing plant electrically powered steel plate overhead door air induction system according to claim 1 wherein: The outer wall of the connecting bolt (7) is threaded to the inside of the upper cover (6), and the outer wall of the air nozzle (8) is set inside the conduit (4).
5. A mail processing plant electrically powered steel plate overhead door air induction system according to claim 1 wherein: The outer wall of the bottom shell (5) is fixedly connected to a fixing block (12), the side wall of the fixing block (12) is fixedly connected to an installation block one (13), and the side wall of the fixing block (12) is fixedly connected to an installation block two (14).
6. A mail processing plant electrically powered steel plate overhead door air sensing device according to claim 5 wherein: The inner wall of the first mounting block (13) is slidably connected to a locking block (15), and the outer wall of the locking block (15) is slidably connected to the inner wall of the second mounting block (14). The outer wall of the locking block (15) is located inside the bottom shell (5).
7. A mail processing plant electrically powered steel plate overhead door air sensing device according to claim 6 wherein: The outer wall of the card block (15) is fixedly connected to a limiting block one (16), the outer wall of the card block (15) is fixedly connected to a limiting block two (17), the outer wall of the limiting block two (17) is fixedly connected to a toggle block (18), the outer wall of the toggle block (18) is located inside the fixing block (12), the inner wall of the limiting block two (17) is provided with a reset spring (19), and the outer wall of the reset spring (19) is located inside the mounting block one (13).
8. A mail processing plant electrically powered steel plate overhead door air induction system according to claim 7 wherein: The outer wall of the first limiting block (16) is disposed on the outer wall of the first mounting block (13), and the outer wall of the second limiting block (17) is disposed on the outer wall of the second mounting block (14).