A safety monitoring and alarming device for a concrete mixing plant
By using portable alcohol detectors and monitoring cameras in concrete mixing plants, the problem of the alcohol detector's inability to be adjusted in position has been solved, improving the ease of use and measurement accuracy of the equipment, and ensuring the safety of the mixing plant and the compliance of the staff.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGYI SHIXING IND (WUHAN) CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-14
AI Technical Summary
In the existing safety monitoring and alarm equipment for concrete mixing plants, the alcohol detectors cannot be adjusted in position, making them impossible to store during peak periods. Prolonged exposure to the elements can easily cause damage and affect measurement accuracy.
The device features a portable alcohol testing unit. A motor-driven lead screw moves a slider and a moving plate to adjust the position of the alcohol testing unit, making it easy for employees to test and store. It is stabilized by support blocks and elastic bands, and equipped with a monitoring camera and warning device for real-time monitoring and alerts.
This has enabled convenient use and maintenance of the alcohol testing device, improved the durability and measurement accuracy of the equipment, and ensured the safety of the mixing plant and the compliance of the staff.
Smart Images

Figure CN224500645U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of safety monitoring and alarm technology, and in particular to a safety monitoring and alarm device for a concrete mixing plant. Background Technology
[0002] A concrete mixing plant mainly consists of five major systems: a mixing host, a material weighing system, a material conveying system, a material storage system, and a control system, as well as other auxiliary facilities. Compared with station aggregate metering, floor aggregate metering reduces four intermediate steps and uses vertical feeding metering, saving metering time and thus greatly improving production efficiency. However, various safety monitoring and alarm devices for concrete mixing plants on the market still have various problems.
[0003] The published patent CN212554474U describes a safety monitoring and alarm device for a concrete mixing plant. It includes a fixed door with a railing movably mounted on its bottom interior via a pivot. The top of the fixed door has an internal mounting groove, and the top of the railing passes through the door and is positioned within the mounting groove. This invention uses an alcohol detector to check if workers have been drinking. A first fingerprint recognition device identifies the worker's fingerprint. Upon successful fingerprint recognition, an electromagnet activates, attracting a mounting plate to one side of the electromagnet. At this point, a locking block separates from the first gear, and a motor rotates, causing the railing to turn. Workers can then pass through the railing to enter the concrete mixing plant, ensuring they are not intoxicated and are indeed employees. If intoxication is detected in a worker, or if fingerprint recognition fails multiple times, an alarm sounds to prevent unauthorized entry, thus ensuring security.
[0004] When the above devices are implemented, they use alcohol detectors to detect whether staff have been drinking. However, the alcohol detectors are in a fixed position and cannot be adjusted. This means that when no staff are passing by after the peak work hours, the alcohol detectors cannot be stored away, and prolonged exposure can easily damage them, affecting the accuracy of their measurement data. Utility Model Content
[0005] In view of the shortcomings of the prior art, this utility model provides a safety monitoring and alarm device for concrete mixing plants, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.
[0006] To achieve the above objectives, this application adopts the following technical solution: a safety monitoring and alarm device for a concrete mixing plant, comprising a chassis, a motor installed on the inner wall of the chassis, an interception rod fixedly connected to the output shaft of the motor, a facial recognition panel installed on the top of the chassis, a hinge installed on the outer side of the chassis, a cover plate fixedly connected to the hinge, a control component installed inside the chassis, a frame installed on the top of the chassis, a moving component installed inside the frame, a moving plate slidably connected to the top of the frame, and an alcohol detector installed on the top of the moving plate.
[0007] In a preferred embodiment, the moving component includes a motor mounted on the outside of the frame, a lead screw fixedly connected to the power output shaft of the motor, a slider threadedly connected to the outer edge of the lead screw, and the top of the slider fixedly connected to the bottom of the moving plate.
[0008] By adopting the above technical solution, the drive motor can drive the lead screw to rotate, thereby moving the slider to the inner wall of the frame. This further enables the moving plate to slide at the top of the frame, and allows the alcohol detector installed on the top of the moving plate to move to one side of the top of the machine box. This makes it easier for employees entering and leaving the mixing plant to perform alcohol testing and breathalyzer operations. When no one is present, the device can be stored in the middle of the protective cover for protection.
[0009] In a preferred embodiment, a support block is installed on the top of the movable plate, and the two ends of two elastic bands are fixedly connected to both sides of the support block. The alcohol detector is installed on the outside of the support block, and the two elastic bands are located on the outside of the alcohol detector.
[0010] By adopting the above technical solution, the support block can be used to support the alcohol detector, and then the elastic band can be used to stably position the alcohol detector on the outer wall of the support block, ensuring that the alcohol detector will not easily fall out of position. Furthermore, by pulling the two elastic bands apart, the alcohol detector can be easily removed for maintenance.
[0011] In a preferred embodiment, a protective cover is installed on the top of the chassis, a monitoring camera is installed on the inside of the protective cover, and a warning light and a buzzer are installed on the outside of the protective cover.
[0012] By adopting the above technical solution, the faces of personnel entering the mixing plant can be recorded in real time using surveillance cameras, while warning lights and buzzers can be used to alert people in case of abnormal situations.
[0013] In a preferred embodiment, the control component includes a control module, a storage module, a comparison module, and a processing module. The control module, storage module, comparison module, and processing module are all installed inside the chassis. The control module, the alcohol detector, and the facial recognition panel are electrically connected. The control module, the processing module, the buzzer, and the warning light are also electrically connected. The monitoring camera, the storage module, and the comparison module are electrically connected.
[0014] By adopting the above technical solution, when the facial recognition panel, surveillance camera and alcohol detector detect abnormal persons, the storage module and comparison module can quickly issue instructions to control the operation of warning lights and buzzers, thereby emitting flashing lights and warning sounds to warn unauthorized and illegal personnel.
[0015] In a preferred embodiment, the inner wall of the frame is fixedly connected to both ends of a limiting rod, the slider is slidably connected to the limiting rod, and the slider is slidably connected to the inner wall of the frame.
[0016] By adopting the above technical solution, the moving slider can be limited by the limiting rod, thereby ensuring that the slider slides stably on the inner wall of the frame.
[0017] In a preferred embodiment, a ring is installed on the inner wall of the frame, and the end of the lead screw away from the motor is rotatably connected to the inner wall of the ring.
[0018] By adopting the above technical solution, it is possible to limit the rotation of the lead screw, thereby ensuring that the lead screw will not easily shift or swing in position during rotation, and ensuring that it continues to rotate in its initial state.
[0019] The beneficial effects of this application are:
[0020] This safety monitoring and alarm device for concrete mixing plants uses a drive motor to rotate a lead screw, which in turn moves a slider to a position on the inner wall of a frame. This allows a moving plate to slide at the top of the frame, and also moves an alcohol detector to one side of the top of the unit. This facilitates alcohol testing for employees entering and leaving the mixing plant. When no one is present, the device can be stored in the middle of a protective cover for protection. Pulling out the two elastic straps allows the alcohol detector to be easily removed for maintenance.
[0021] This type of safety monitoring and alarm equipment for concrete mixing plants can protect the facial recognition panel by rotating the cover plate to fit the outside of the machine box, ensuring that it is not exposed to the outside for a long time. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of this application;
[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of the protective cover in this application;
[0024] Figure 3 This is a schematic diagram of the cover plate structure of this application;
[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the frame of this application;
[0026] Figure 5 For the purposes of this application Figure 4 Enlarged structural diagram at point A in the middle.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1. Chassis; 2. Motor; 3. Interception bar; 4. Protective cover; 5. Facial recognition panel; 6. Hinge; 7. Cover plate; 8. Surveillance camera; 9. Warning light; 10. Buzzer; 11. Control module; 12. Storage module; 13. Comparison module; 14. Processing module; 15. Frame; 16. Motor; 17. Lead screw; 18. Slider; 19. Moving plate; 20. Support block; 21. Alcohol detector; 22. Elastic band; 23. Limiting rod; 24. Ring. Detailed Implementation
[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0030] Reference Figure 1-5 A safety monitoring and alarm device for a concrete mixing plant includes a housing 1, a motor 2 installed on the inner wall of the housing 1, an interception rod 3 fixedly connected to the output shaft of the motor 2, a facial recognition panel 5 installed on the top of the housing 1, a hinge 6 installed on the outer side of the housing 1, a cover plate 7 fixedly connected to the hinge 6, a control component installed inside the housing 1, a frame 15 installed on the top of the housing 1, a moving component installed inside the frame 15, a moving plate 19 slidably connected to the top of the frame 15, and an alcohol detector 21 installed on the top of the moving plate 19.
[0031] See Figure 4 and Figure 5The moving component includes a motor 16, which is mounted on the outside of the frame 15. The power output shaft of the motor 16 is fixedly connected to a lead screw 17, and a slider 18 is threadedly connected to the outer edge of the lead screw 17. The top of the slider 18 is fixedly connected to the bottom of the moving plate 19, so that the motor 16 can drive the lead screw 17 to rotate, thereby causing the slider 18 to move to the inner wall of the frame 15. This further causes the moving plate 19 to slide on the top of the frame 15, and can also move the alcohol detector 21 mounted on the top of the moving plate 19 to one side of the top of the housing 1. This further facilitates the alcohol testing operation for employees entering and leaving the mixing plant, and can be stored in the middle of the protective cover 4 for protection when no one is present.
[0032] See Figure 4 A support block 20 is installed on the top of the movable plate 19. The two ends of two elastic bands 22 are fixedly connected to both sides of the support block 20. The alcohol detector 21 is installed on the outside of the support block 20, and the two elastic bands 22 are set on the outside of the alcohol detector 21. This allows the support block 20 to support the alcohol detector 21, and the elastic bands 22 can work together to stably position the alcohol detector 21 on the outer wall of the support block 20, ensuring that the alcohol detector 21 will not easily fall out of position. Furthermore, by pulling the two elastic bands 22 apart, the alcohol detector 21 can be easily removed for maintenance.
[0033] See Figure 2 The top of the casing 1 is equipped with a protective cover 4. A monitoring camera 8 is installed inside the protective cover 4. A warning light 9 and a buzzer 10 are installed on the outside of the protective cover 4, so that the monitoring camera 8 can record the faces of personnel entering the mixing plant in real time, while the warning light 9 and the buzzer 10 can be used to warn in case of abnormal situation.
[0034] See Figure 2 - Figure 4 The control components include a control module 11, a storage module 12, a comparison module 13, and a processing module 14. All three modules are installed inside the chassis 1. The control module 11, the alcohol detector 21, and the facial recognition panel 5 are electrically connected. The control module 11, the processing module 14, the buzzer 10, and the warning light 9 are also electrically connected. The monitoring camera 8, the storage module 12, and the comparison module 13 are electrically connected. This allows the storage module 12 and the comparison module 13 to quickly issue commands to control the warning light 9 and the buzzer 10 when the facial recognition panel 5, the monitoring camera 8, and the alcohol detector 21 detect abnormal personnel. This enables the flashing lights and warning sounds to alert unauthorized personnel.
[0035] See Figure 5The inner wall of the frame 15 is fixedly connected to both ends of the limiting rod 23. The slider 18 is slidably connected to the limiting rod 23. The slider 18 is slidably connected to the inner wall of the frame 15, so that the limiting rod 23 can be used to limit the movement of the slider 18, thereby ensuring that the slider 18 is stably sliding on the inner wall of the frame 15.
[0036] See Figure 5 A ring 24 is installed on the inner wall of the frame 15. The end of the lead screw 17 away from the motor 16 is rotatably connected to the inner wall of the ring 24, which can be used to limit the rotation of the lead screw 17, thereby ensuring that the lead screw 17 will not easily shift or swing in position when rotating, and ensuring that it continues to rotate in the initial state.
[0037] Working principle:
[0038] Firstly, the interception bar 3 can be used to intercept personnel entering and exiting the mixing plant. Then, the motor 2 can be driven to rotate the interception bar 3 for personnel to move around in and out of the mixing plant. The facial recognition panel 5, the monitoring camera 8, and the alcohol detector 21 can be used to detect the face and alcohol level of personnel entering the mixing plant. Furthermore, the monitoring camera 8 can be used to record the facial and alcohol levels of personnel entering in real time. At the same time, when abnormal personnel are detected, the storage module 12 and the comparison module 13 can be used to quickly issue instructions to control the warning light 9 and the buzzer 10 to operate, thereby emitting flashing lights and warning sounds to warn unauthorized and illegal personnel.
[0039] The drive motor 16 drives the lead screw 17 to rotate, which in turn drives the slider 18 to move to the inner wall of the frame 15. This further drives the moving plate 19 to slide on the top of the frame 15, and can also move the alcohol detector 21 installed on the top of the moving plate 19 to one side of the top of the housing 1. This makes it easier for employees entering and leaving the mixing plant to perform alcohol testing by blowing their breath. When no one is around, it can be stored in the middle of the protective cover 4 for protection. The rotating cover plate 7 can be used to protect the face recognition panel 5 by fitting it against the outside of the housing 1, ensuring that it is not exposed to the outside for a long time.
[0040] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0042] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.
Claims
1. A safety monitoring and alarm device for a concrete mixing plant, comprising a housing (1), characterized in that, A motor (2) is installed on the inner wall of the chassis (1). An interceptor (3) is fixedly connected to the output shaft of the motor (2). A face recognition panel (5) is installed on the top of the chassis (1). A hinge (6) is installed on the outer side of the chassis (1). A cover plate (7) is fixedly connected to the hinge (6). A control component is installed inside the chassis (1). A frame (15) is installed on the top of the chassis (1). A moving component is installed inside the frame (15). A moving plate (19) is slidably connected to the top of the frame (15). An alcohol detector (21) is installed on the top of the moving plate (19).
2. The safety monitoring and alarm device for a concrete mixing plant according to claim 1, characterized in that, The moving component includes a motor (16) mounted on the outside of the frame (15). The power output shaft of the motor (16) is fixedly connected to a lead screw (17). The outer edge of the lead screw (17) is threadedly connected to a slider (18). The top of the slider (18) is fixedly connected to the bottom of the moving plate (19).
3. The safety monitoring and alarm device for a concrete mixing plant according to claim 2, characterized in that, The top of the movable plate (19) is equipped with a support block (20), and the two ends of two elastic bands (22) are fixedly connected to both sides of the support block (20). The alcohol detector (21) is installed on the outside of the support block (20), and the two elastic bands (22) are located outside the alcohol detector (21).
4. The safety monitoring and alarm device for a concrete mixing plant according to claim 1, characterized in that, The top of the chassis (1) is equipped with a protective cover (4), the inside of the protective cover (4) is equipped with a monitoring camera (8), and the outside of the protective cover (4) is equipped with a warning light (9) and a buzzer (10).
5. A safety monitoring and alarm device for a concrete mixing plant according to claim 4, characterized in that, The control components include a control module (11), a storage module (12), a comparison module (13), and a processing module (14). The control module (11), storage module (12), comparison module (13), and processing module (14) are all installed inside the chassis (1). The control module (11), the alcohol detector (21), and the face recognition panel (5) are electrically connected. The control module (11), the processing module (14), the buzzer (10), and the warning light (9) are also electrically connected. The monitoring camera (8), the storage module (12), and the comparison module (13) are electrically connected.
6. A safety monitoring and alarm device for a concrete mixing plant according to claim 2, characterized in that, The inner wall of the frame (15) is fixedly connected to both ends of the limiting rod (23), the slider (18) is slidably connected to the limiting rod (23), and the slider (18) is slidably connected to the inner wall of the frame (15).
7. A safety monitoring and alarm device for a concrete mixing plant according to claim 2, characterized in that, The inner wall of the frame (15) is fitted with a ring (24), and the end of the lead screw (17) away from the motor (16) is rotatably connected to the inner wall of the ring (24).