Cowshed methane monitoring device
By designing the slide rail, displacement frame, and lifting mechanism of the methane monitoring device in the cattle shed, the problems of limited monitoring range and poor mobility at fixed points have been solved, enabling stable, accurate, and full-coverage monitoring of the gas sensor and meeting the refined needs of animal husbandry.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-22
- Publication Date
- 2026-03-06
AI Technical Summary
Existing methane monitoring devices in cattle sheds have limitations in their fixed-point monitoring range, making it difficult to fully reflect the methane concentration. Mobile monitoring devices are cumbersome to adjust and lack flexibility, are easily obstructed by obstacles, and result in monitoring blind spots, thus failing to meet the needs of refined monitoring.
The design employs a slide rail and displacement frame, combined with a dual-head motor-driven displacement wheel and lifting mechanism, to achieve horizontal movement and height adjustment of the gas sensor. Stability and accuracy are ensured through T-shaped guide grooves and gear transmission, while support wheels enhance the stability of the device and prevent obstruction by obstacles.
It enables large-scale and accurate monitoring of gas sensors in cattle sheds, automated path planning, reduced manual operation, improved monitoring efficiency and reliability, coverage of different heights and areas, and elimination of monitoring blind spots.
Smart Images

Figure CN223977216U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas monitoring technology, specifically a methane monitoring device for cattle sheds. Background Technology
[0002] In the context of the global trend towards large-scale and intensive development of animal husbandry, the scientific monitoring and control of the internal environment of cattle sheds, as places for centralized livestock farming, is particularly crucial. Cattle produce a large amount of methane gas during their metabolism. When the methane concentration in cattle sheds is too high, it can easily cause safety accidents such as fires and explosions, threatening the lives of cattle, reducing farming efficiency, and even harming the health of personnel who work in cattle sheds for extended periods. Therefore, efficient and accurate real-time monitoring of methane gas in cattle sheds has become an important link in ensuring the green and sustainable development of animal husbandry.
[0003] Currently, most methane monitoring devices used in cattle sheds are installed at fixed points. These devices are typically fixed to walls, pillars, or other locations within the shed, limiting their monitoring range to the area surrounding the device. Due to the large interior space of cattle sheds and the significant differences in methane concentration distribution across different areas influenced by factors such as ventilation and cattle activity, fixed-point monitoring cannot comprehensively and accurately reflect the methane concentration throughout the entire shed. While some mobile monitoring devices can expand the monitoring range to some extent, their height adjustment often relies on simple manual adjustment or basic mechanical structures. This not only makes the adjustment process cumbersome but also makes it difficult to quickly and accurately adjust the monitoring height according to actual monitoring needs. Furthermore, their mobility is poor during movement, and their path is easily obstructed by obstacles such as feed troughs and railings within the shed, preventing them from reaching the designated monitoring location smoothly. This results in numerous blind spots in the monitoring, failing to meet the increasingly sophisticated monitoring needs of the livestock industry. Utility Model Content
[0004] The purpose of this utility model is to provide a methane monitoring device for cattle sheds, in order to solve the problems mentioned in the background art, such as the limited range of fixed-point monitoring, which makes it difficult to fully reflect the methane concentration in cattle sheds; the cumbersome lifting and adjusting of existing mobile monitoring devices, which makes it difficult to accurately position them; and the poor mobility and susceptibility to obstacles that lead to blind spots in monitoring, which cannot meet the needs of refined monitoring in animal husbandry.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a methane monitoring device for cattle sheds, comprising slide rails, guide grooves formed on the opposing surfaces of the two slide rails, and a displacement frame provided on the opposing surfaces of the two slide rails. A double-headed motor is fixedly installed inside the middle section of the displacement frame, and displacement wheels are fixedly connected to the output shafts at both ends of the double-headed motor. A mounting base is fixedly provided on the lower surface of the displacement frame, and a gas sensor is provided at the lower end of the mounting base. A lifting mechanism is provided at the lower end of the mounting base. By driving the gas sensor to lift and move in coordination with the displacement frame moving on the slide rails, a wider range of methane gas detection can be achieved.
[0006] The lifting mechanism includes: a lifting motor, which is fixedly installed inside the mounting base, and a central gear is fixedly connected to one end of the output shaft of the lifting motor. Rotating side gears are installed inside the mounting base on both sides of the central gear, and a take-up reel is fixedly connected to one end of the rotating shaft of the side gear. One end of a connecting line is wound around the outer surface of the take-up reel, and the other end of the connecting line passes through the lower surface of the mounting base. A suspension plate is fixedly connected to the end of the connecting line that passes through the lower surface of the mounting base. The suspension plate is fixedly connected to the upper end of the gas sensor.
[0007] The outer surface of the displacement frame is equipped with a rotating support wheel, and the outer surface of the two slide rails facing each other is fixedly provided with a support plate.
[0008] Preferably, the guide groove is T-shaped, with one end of the guide groove penetrating the outer surface of the slide rail, the displacement wheel located inside the guide groove, and the lower outer surface of the displacement wheel fitting against the inner bottom surface of the guide groove.
[0009] By adopting the above technical solution, the combination design of the T-shaped guide groove and the displacement wheel can ensure that the displacement frame moves stably on the slide rail. The T-shaped structure not only provides a clear sliding track for the displacement wheel to prevent it from deviating from the track, but also plays a lateral limiting role for the displacement frame, so that the displacement frame maintains a straight motion trajectory during movement, which improves the movement accuracy and reliability of the device, thereby reaching the designated monitoring position more accurately and obtaining methane concentration data.
[0010] Preferably, the center gear meshes with the side gear, and the side gear and the take-up reel are concentrically designed.
[0011] By adopting the above technical solution, the meshing transmission of the central gear and the side gear, as well as the concentric design of the side gear and the take-up reel, can realize the synchronous and stable lifting and lowering of the gas sensor. When the lifting motor drives the central gear to rotate, the side gears on both sides will rotate synchronously in opposite directions through the meshing of the gears, thereby driving the take-up reel to synchronously take in and release the connecting line, so that the suspension plate and the gas sensor can be lifted and lowered smoothly. This transmission method not only ensures the synchronicity of the lifting process, but also achieves precise control of the height of the gas sensor through the accuracy of gear transmission, meeting the monitoring needs of different height positions.
[0012] Preferably, the upper surface of the suspension plate is in contact with the lower surface of the mounting base, and the suspension plate and the mounting base are concentrically arranged.
[0013] By adopting the above technical solution, the concentric setting of the suspension plate and the mounting base can ensure that the gas sensor maintains a stable posture during the lifting process. When the connecting cable is retracted, the upper surface of the suspension plate and the lower surface of the mounting base always remain in contact. Moreover, the concentric design of the two ensures that the gas sensor will not shift or shake during the lifting process, thus guaranteeing the stability of the sensor and the accuracy of the monitoring data, and avoiding the impact of changes in the sensor's posture on the monitoring results.
[0014] Preferably, the support wheel is inclined downward toward the outer surface of the slide rail, and the outer surface of the support wheel is in contact with the upper surface of the support plate and the outer surface of the slide rail.
[0015] By adopting the above technical solution, the inclined setting of the support wheel and its fit with the support plate and slide rail can further optimize the stability and adaptability of the device. The inclined angle of the support wheel allows it to contact the upper surface of the support plate and the outer surface of the slide rail simultaneously, forming a stable triangular support structure. This design not only enhances the stability of the displacement frame when moving horizontally, but also effectively distributes the weight of the device, reduces wear between the displacement wheel and the guide groove, and extends the service life of the device. At the same time, when encountering obstacles in the cattle shed, the support wheel can better adapt to terrain changes, allowing the device to pass smoothly through complex environments, thus improving the overall adaptability and reliability of the device.
[0016] Compared with the prior art, the beneficial effects of this utility model are: the methane monitoring device for cattle sheds:
[0017] 1. By setting up a dual-head motor to drive the displacement wheel to move within the guide groove of the slide rail, and coordinating with the movement of the displacement frame, the gas sensor can achieve a wide range of horizontal displacement in the cattle shed, breaking through the limitations of traditional fixed-point monitoring. At the same time, the lifting motor in the lifting mechanism drives the central gear to rotate, and through meshing with the side gear, synchronously drives the take-up wheel to take in and release the connecting line, realizing the precise lifting and lowering of the suspension plate and the gas sensor. The monitoring height can be flexibly adjusted to cover different heights and areas in the cattle shed, effectively solving the monitoring blind spot problem caused by uneven methane concentration distribution, and enabling comprehensive and accurate acquisition of methane concentration data in the cattle shed.
[0018] 2. The coordinated operation of the dual-head motor and the lifting motor enables automated monitoring path planning and height adjustment through program control, eliminating the need for frequent manual operation, greatly improving monitoring efficiency, reducing labor costs, and adapting to the intelligent development needs of modern animal husbandry. Furthermore, the inclined support wheels on the outer side of the displacement frame fit tightly against the outer surface of the slide rail and the support plate, which not only enhances the stability of the displacement frame during movement but also effectively avoids jamming caused by obstacles such as feed troughs and railings during movement, ensuring that the monitoring device can smoothly reach the designated monitoring position and further improving the reliability of monitoring. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.
[0020] Figure 2 This is a three-dimensional structural diagram of the connection between the mounting base, suspension plate, and gas sensor of this utility model.
[0021] Figure 3 This is a three-dimensional structural diagram of the cross-sectional view of the slide rail, displacement frame, and dual-head motor connection of this utility model.
[0022] Figure 4 This is a three-dimensional structural diagram of the cross-sectional view of the winding reel, connecting line, and suspension disc of this utility model.
[0023] Figure 5 This is a three-dimensional structural diagram of the connection between the lifting motor, the central gear, and the side gear of this utility model.
[0024] Figure 6 This is a three-dimensional structural diagram of the overall working state of this utility model.
[0025] In the diagram: 1. Slide rail; 2. Guide groove; 3. Displacement frame; 4. Dual-head motor; 5. Displacement wheel; 6. Mounting base; 7. Lifting motor; 8. Center gear; 9. Side gear; 10. Take-up reel; 11. Connecting line; 12. Suspension plate; 13. Gas sensor; 14. Support wheel; 15. Support plate. Detailed Implementation
[0026] 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.
[0027] Please see Figures 1-6 This utility model provides a technical solution: a methane monitoring device for cattle sheds.
[0028] Example 1: This example discloses: a slide rail 1, guide grooves 2 are provided on the surface of the two slide rails 1 facing each other, and a displacement frame 3 is provided on the side of the two slide rails 1 facing each other. A double-headed motor 4 is fixedly installed inside the middle section of the displacement frame 3, and displacement wheels 5 are fixedly connected to the output shafts at both ends of the double-headed motor 4. A mounting base 6 is fixedly provided on the lower surface of the displacement frame 3, and a gas sensor 13 is provided at the lower end of the mounting base 6.
[0029] The guide groove 2 is T-shaped, and one end of the guide groove 2 penetrates the outer surface of the slide rail 1. The displacement wheel 5 is located inside the guide groove 2 directly opposite it, and the lower outer surface of the displacement wheel 5 is in contact with the inner bottom surface of the guide groove 2.
[0030] The slide rail 1 serves as the basic support structure of the device. Its T-shaped guide groove 2 on the opposite side provides a sliding track for the displacement wheel 5. When the dual-head motor 4 starts, the output shafts at both ends drive the displacement wheel 5 to rotate synchronously. Since the displacement wheel 5 is in close contact with the bottom surface of the guide groove 2, the rotation of the displacement wheel 5 will generate forward or backward friction, thereby driving the displacement frame 3 to move linearly along the guide groove 2. The mounting seat 6 on the lower surface of the displacement frame 3 moves synchronously with the displacement frame 3, thereby driving the gas sensor 13 installed at the lower end of the mounting seat 6 to adjust its position in the horizontal direction of the cowshed, so as to realize the monitoring of methane gas in different areas. The T-shaped design of the guide groove 2 can not only prevent the displacement wheel 5 from leaving the track, but also play a certain lateral limiting role for the displacement frame 3, ensuring the stability of the device during movement.
[0031] Example 2: This example is based on Example 1: The lower end of the mounting base 6 is provided with a lifting mechanism, which drives the gas sensor 13 to move up and down and cooperates with the displacement frame 3 to move on the slide rail 1, so as to realize the detection of methane gas over a wider range.
[0032] The lifting mechanism includes: a lifting motor 7, which is fixedly installed inside the mounting base 6. One end of the output shaft of the lifting motor 7 is fixedly connected to a central gear 8. Rotating side gears 9 are installed inside the mounting base 6 on both sides of the central gear 8. One end of the rotating shaft of the side gear 9 is fixedly connected to a take-up reel 10. One end of a connecting line 11 is wound around the outer surface of the take-up reel 10. The other end of the connecting line 11 passes through the lower surface of the mounting base 6. The end of the connecting line 11 that passes through the lower surface of the mounting base 6 is fixedly connected to a suspension plate 12. The suspension plate 12 is fixedly connected to the upper end of the gas sensor 13.
[0033] The center gear 8 meshes with the side gear 9, and the side gear 9 and the take-up reel 10 are concentrically designed.
[0034] The upper surface of the suspension plate 12 is in contact with the lower surface of the mounting base 6, and the suspension plate 12 and the mounting base 6 are concentrically arranged.
[0035] When the monitoring height of the gas sensor 13 needs to be adjusted, the lifting motor 7 is started, and its output shaft drives the central gear 8 to rotate. Since the central gear 8 is meshed with the side gears 9 on both sides, the rotation of the central gear 8 will drive the side gears 9 to rotate synchronously in the opposite direction. The side gears 9 and the take-up reel 10 are concentrically designed, so the take-up reel 10 will rotate together with the side gears 9. When the take-up reel 10 rotates clockwise, the connecting line 11 is wound on the take-up reel 10. The shortening of the connecting line 11 will pull the suspension plate 12 to move upward, thereby raising the gas sensor 13. Conversely, when the take-up reel 10 rotates counterclockwise, the connecting line 11 is released, and the suspension plate 12 and the gas sensor 13 descend under the action of gravity. In this way, in conjunction with the movement of the displacement frame 3 on the slide rail 1, the gas sensor 13 can achieve a wider range of methane gas detection in three-dimensional space. The concentric setting of the suspension plate 12 and the mounting base 6 ensures the stability of the lifting process and avoids the gas sensor 13 from shaking and affecting the monitoring accuracy.
[0036] Example 3: This example is based on Example 1 and Example 2: A rotating support wheel 14 is installed on the outer surface of the displacement frame 3, and a support plate 15 is fixedly installed on the outer surface of the two slide rails 1 facing each other.
[0037] The support wheel 14 is inclined downward toward the outer surface of the slide rail 1, and the outer surface of the support wheel 14 is in contact with the upper surface of the support plate 15 and the outer surface of the slide rail 1.
[0038] When the displacement frame 3 moves on the slide rail 1, the support wheel 14 rolls along with the displacement frame 3. This not only helps to share part of the weight of the displacement frame 3 and reduce the pressure on the displacement wheel 5, but also provides lateral support through contact with the support plate 15 and the slide rail 1, preventing the displacement frame 3 from tilting or swaying during movement. Especially when encountering obstacles such as feeding troughs and fences in the cattle shed, the design of the support wheel 14 enables the displacement frame 3 to pass over obstacles more smoothly, ensuring the normal operation of the monitoring device and further improving the adaptability and reliability of the device in complex environments.
[0039] 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 cowshed methane monitoring device, comprising slide rails (1), a guide groove (2) is formed on the side surface of the two slide rails (1) facing each other, and a displacement frame (3) is arranged on the side of the two slide rails (1) facing each other, characterized in that: The middle section of the displacement frame (3) is internally fixedly provided with a double-head motor (4), both ends of the double-head motor (4) are fixedly connected with displacement wheels (5), the lower surface of the displacement frame (3) is fixedly provided with a mounting seat (6), the lower end of the mounting seat (6) is provided with a gas sensor (13), the lower end of the mounting seat (6) is provided with a lifting mechanism, the gas sensor (13) is driven to lift and move on the slide rail (1) in cooperation with the displacement frame (3), so that a larger range of methane gas detection is realized.
2. A barn methane monitoring device according to claim 1, characterised in that: The lifting mechanism comprises a lifting motor (7) fixedly installed in the mounting seat (6), one end of the output shaft of the lifting motor (7) is fixedly connected with a central gear (8), the mounting seat (6) on both sides of the central gear (8) is internally provided with a rotating side gear (9), one end of the rotating shaft of the side gear (9) is fixedly connected with a take-up wheel (10), one end of a connecting line (11) is wound on the outer surface of the take-up wheel (10), the other end of the connecting line (11) penetrates through the lower surface of the mounting seat (6), and one end of the connecting line (11) penetrating through the lower surface of the mounting seat (6) is fixedly connected with a suspension disc (12), and the suspension disc (12) is fixedly connected with the upper end of the gas sensor (13).
3. A barn methane monitoring device according to claim 1, wherein: The outer surface of the displacement frame (3) is provided with a rotating support wheel (14), and the outer surface of one side of the two slide rails (1) is fixedly provided with a support plate (15).
4. A barn methane monitoring device according to claim 1, characterized in that: The guide groove (2) is designed in a T shape, one end of the guide groove (2) penetrates through the outer surface of the slide rail (1), the displacement wheel (5) is located in the opposite guide groove (2), and the lower end of the outer surface of the displacement wheel (5) is in close contact with the inner bottom surface of the guide groove (2).
5. A barn methane monitoring device according to claim 2, wherein: The central gear (8) is in meshing connection with the side gear (9), and the side gear (9) and the take-up wheel (10) are designed in a concentric manner.
6. A barn methane monitoring device according to claim 2, wherein: The upper surface of the suspension disc (12) is in close contact with the lower surface of the mounting seat (6), and the suspension disc (12) and the mounting seat (6) are concentrically arranged.
7. A barn methane monitoring device according to claim 3, wherein: The support wheel (14) is inclinedly arranged downward to the outer surface of the slide rail (1), and the outer surface of the support wheel (14) is in close contact with the upper surface of the support plate (15) and the outer surface of the slide rail (1).