Fixture capable of adjusting aperture and monitoring leaky coaxial cable and control method thereof

Abstract

The invention relates to the technical field of fixing fixtures, and discloses a fixture capable of adjusting the aperture and monitoring a leaky coaxial cable and a control method thereof, and the fixture is characterized in that the fixture comprises a hoop, a central screw rod and a monitoring system; the central screw rod is connected with the hoop, the central screw rod is used for adjusting the size of the hoop, and the monitoring system is arranged on the hoop. The clamp hole diameter control method comprises the steps that 1, the sensor collects data in real time, and the wireless communication module transmits the collected data to the microprocessor; and 2, the microprocessor analyzes the data obtained in the step 1 and judges whether the aperture of the fixture needs to be adjusted, and if the aperture of the fixture needs to be adjusted, the microprocessor sends a control instruction to an execution mechanism. And step 3, the execution mechanism adjusts the aperture of the clamp according to the control instruction in the step 2, and feeds back the adjusted state to the microprocessor to form closed-loop control. The aperture adjustability of the fixture is realized, and the special requirements of the MIMO function leaky coaxial cable are met.

Description

Technical Field

[0001] The invention relates to the technical field of fixed fixtures, and in particular to a fixture capable of adjusting aperture and monitoring leaky cables and a control method thereof. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] A leaky cable clamp is a device specifically used to fix and protect leaky cables. Leaky cables are usually used for wireless signal coverage in tunnels, subways, underground communication systems and other environments, so leaky cable clamps play an important role in ensuring the safety and stability of cables. The development of leaky cable clamps has gone through several stages, from the early simple mechanical fixing method to a more complex and intelligent direction.

[0004] The leaky cable clamps currently on the market have multiple problems and limitations in practical applications. These clamps usually have a fixed aperture and can only fit leaky cables of specific specifications. This design limits the versatility of the clamps, requiring users to purchase different clamps for leaky cables of different specifications, increasing costs and storage space requirements. Secondly, the existing leaky cable clamps lack the ability to monitor the status of the leaky cable in real time. Since the working status of the leaky cable cannot be monitored in real time, it is difficult for users to promptly discover and prevent potential problems, such as damage to the leaky cable or signal interference. Another problem is that direct contact may cause damage to the outer shell of the leaky cable. Some clamps may apply excessive pressure or friction when fixing the leaky cable, thereby damaging the outer skin of the leaky cable and causing a decrease in signal transmission quality. At the same time, the installation and adjustment process of many leaky cable clamps is relatively complicated. This requires operators to have certain skills and experience, increasing installation time and labor intensity. Patent application number 2022111506276 discloses a leaky cable with improved MIMO function. Due to its special structural design, the outer diameter of the MIMO leaky cable is different from that of the traditional leaky cable. Existing fixtures are difficult to adapt to the special requirements of new leaky cables such as MIMO functional leaky cables. Summary of the invention

[0005] In view of the above technical problems, the present invention discloses a fixture with adjustable aperture and capable of monitoring leaky cables and a control method thereof. The fixture can adapt to leaky cables of different specifications, has a real-time monitoring function and protects the outer casing of the leaky cable at the same time.

[0006] A clamp capable of adjusting aperture and monitoring leakage cable comprises a clamp, a central screw and a monitoring system; the clamp comprises two sub-clamps, the central screw is connected to the sub-clamps respectively, the central screw is rotated to adjust the inner diameter of the clamp, and the monitoring system is arranged on the clamp. The clamp can be freely adjusted between various cable specifications, avoiding the universal limitation brought by the fixed aperture of traditional clamps.

[0007] Two semicircular structures are used inside the clamp, and the edge of each semicircular clamp has internal threads. The central screw is provided with external threads that match the internal threads of the clamp. The central screw is passed through the central holes of the two semicircular clamps and is engaged with the internal threads of the clamp by rotating the central screw. The central hole is a circular adjustment hole.

[0008] When the central screw is rotated clockwise, the screw will move toward the inside of the clamp, and the two semicircular clamps will move closer to each other under the action of the screw, thereby reducing the aperture of the clamp. Conversely, when the central screw is rotated counterclockwise, the screw will move outward, and the two semicircular clamps will move away from each other, thereby increasing the aperture of the clamp. This threaded adjustment mechanism can achieve precise adjustment of the aperture of the clamp to accommodate leaky cables of different diameters.

[0009] Furthermore, a lining steel belt is provided in the clamp, and the lining steel belt is a folding buckle structure. The material is high-strength engineering plastic (such as PA66 or PEEK). The lining protection structure can reduce friction and pressure loss while ensuring the stability of the cable, extend the service life of the cable, and minimize the signal attenuation problem caused by damage to the outer shell.

[0010] Furthermore, the inner lining steel belt is provided with a plurality of adjustment holes, and the adjustment holes are elliptical holes.

[0011] Furthermore, the inner surface of the lining steel belt is designed with a micron-scale grid texture.

[0012] Furthermore, the central screw is connected to the clamp via threads.

[0013] Furthermore, the monitoring system includes a temperature sensor, a pressure sensor, a radio frequency detector, a wireless communication module and a microprocessor; the temperature sensor, the pressure sensor and the radio frequency detector transmit data through the wireless communication module, and the microprocessor processes the data of the temperature sensor, the pressure sensor and the radio frequency detector. Once any abnormality is detected (such as loose cables, position offset or signal attenuation), the system can immediately issue an alarm. According to the signal feedback, it can be automatically adjusted through the remote control function.

[0014] For example, the clamp is made of stainless steel material with shape memory alloy. When the temperature or current changes, the shape memory alloy deforms. The microprocessor automatically and remotely makes corresponding compensatory adjustments to the aperture of the clamp based on Bluetooth or WIFI according to the data from the temperature sensor.

[0015] A method for controlling the aperture of a clamp includes:

[0016] Step 1: The sensor collects data in real time, and the wireless communication module transmits the collected data to the microprocessor. The sensor includes temperature sensor, pressure sensor and radio frequency detector, etc.

[0017] Step 2: The microprocessor performs data analysis on the data obtained in step 1 to determine whether the aperture of the fixture needs to be adjusted. If adjustment is required, the microprocessor sends a control instruction to the actuator.

[0018] Step 3, the actuator adjusts the aperture or position of the clamp according to the control instruction of step 2, and feeds back the adjusted state to the microprocessor to form a closed-loop control.

[0019] Users can monitor the status and adjustment process of the fixture through remote devices.

[0020] Furthermore, the clamp is made of stainless steel.

[0021] Furthermore, the clamp is provided with an actuator, and the actuator controls the rotation of the central screw.

[0022] Furthermore, the central screw is provided with a handle, and the handle is provided with a quick positioning mark and a scale.

[0023] The main advantages of the present invention are:

[0024] Achieve the adjustability of the fixture aperture: The aperture design of the leaky cable fixture should be highly adjustable to accommodate various diameters and types of leaky cables. This flexibility simplifies construction preparation and reduces the need for multiple specifications of fixtures.

[0025] Integrated wireless sensors to monitor the status of leaky cables in real time: In order to ensure the continuous and reliable operation of the cable, the leaky cable fixture integrates various sensors. The sensors can monitor the physical status of the leaky cable (such as pressure, temperature, vibration, etc.) in real time and evaluate the signal quality. Intelligent monitoring helps to prevent potential failures in advance. The traditional fixture fixing method may exert excessive pressure on the MIMO leaky cable, causing it to deform and affect the signal transmission quality. The pressure sensor integrated in the fixture can monitor the pressure of the fixture on the leaky cable in real time and transmit the data to the microprocessor for analysis through the wireless communication module. Once the pressure exceeds the preset value, the system will sound an alarm to remind the user to adjust the tightness of the fixture to avoid damage to the MIMO leaky cable.

[0026] Design lining protection structure: To avoid physical damage to the cable casing caused by direct contact between the leaky cable and the fixture, the lining part of the fixture should be made of flexible and wear-resistant materials, such as high-strength engineering plastics (such as PA66 or PEEK). In addition, the protection structure can also improve the performance of the fixture in various harsh environments, such as high humidity and high vibration environments. The slot structure of the MIMO leaky cable is relatively complex, and the slots on its outer conductor are easily damaged. The lining protection structure of the fixture can prevent the fixture from contacting the diameter of the leaky cable hole, thereby preventing scratches or squeezing of the slot, protecting the special structure of the MIMO leaky cable, and ensuring that its performance is not affected.

[0027] Adapting to the special requirements of MIMO functional leaky cables: The structure of the fixture can provide effective support for multi-layer leaky cables, ensure signal isolation and transmission quality between multiple channels, and ensure the stability of each channel in the MIMO system. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, and the above and / or other advantages of the present invention will become more clear.

[0029] Figure 1 The figure is a schematic diagram of the adjustable aperture mechanism and its installation according to the present invention.

[0030] Figure 2 It is a schematic cross-sectional view of the foldable buckle structure of the lining steel belt of the present invention. DETAILED DESCRIPTION

[0031] The figure markings in the accompanying drawings are: 1-clamp; 2-center screw; 3-lined steel belt; 4-adjustment hole; 5-temperature sensor; 6-pressure sensor; 7-radio frequency detector; 8-wireless communication module; 9-microprocessor; 10-fixed bracket; 11-folding wing.

[0032] A clamp capable of adjusting aperture and monitoring leakage cable comprises a clamp 1, a central screw 2 and a monitoring system; the central screw 2 is connected to the clamp 1, the central screw 2 adjusts the size of the clamp 1, and the monitoring system is arranged on the clamp 1. The clamp is installed on a wall or the ground through a fixing bracket 10. The clamp 1 is made of stainless steel.

[0033] The clamp 1 is provided with an inner lining steel belt 3, which is a folding buckle structure. The inner lining steel belt 3 is installed by folding fins 11. The inner lining steel belt 3 is provided with a plurality of adjustment holes 4. The inner surface of the inner lining steel belt 3 is designed with a micron-level grid texture.

[0034] The central screw 2 is connected to the clamp 1 through threads.

[0035] The monitoring system includes a temperature sensor 5, a pressure sensor 6, a radio frequency detector 7, a wireless communication module 8 and a microprocessor 9; the temperature sensor 5, the pressure sensor 6 and the radio frequency detector 7 transmit data through the wireless communication module 8, and the microprocessor 9 processes the data of the temperature sensor 5, the pressure sensor 6 and the radio frequency detector 7.

[0036] The central screw rod 2 is provided with a handle, and the handle is provided with a quick positioning mark and a scale.

[0037] A method for controlling the aperture of a clamp, the method comprising:

[0038] Step 1: The sensor collects data in real time, and the wireless communication module transmits the collected data to the microprocessor.

[0039] Step 2: The microprocessor performs data analysis on the data obtained in step 1 to determine whether the aperture of the fixture needs to be adjusted. If adjustment is required, the microprocessor sends a control instruction to the actuator.

[0040] Step 3, the actuator adjusts the aperture of the clamp according to the control instruction of step 2, and feeds back the adjusted state to the microprocessor to form a closed-loop control.

[0041] Users can monitor the status and adjustment process of the fixture through remote devices.

[0042] As shown in Figure 1, the clamp adopts an adjustable aperture mechanism and utilizes the principle of thread design, including a center screw 2 and a semicircular clamp 1 with multiple threads; the inner edge of the clamp 1 is an internal thread, which cooperates with the external thread of the center screw 2; a plurality of oblong adjustment holes are designed on the adjustable steel belt to improve the adjustment accuracy, and the clamp is a semicircular structure; internal thread: indicated by a wavy line next to the center thread to achieve thread cooperation between the inner hole of the clamp and the threaded rod; oblong adjustment hole: three adjustment holes 4 are provided on the semicircular clamp 1, and the adjustment hole 4 is an elliptical hole.

[0043] By rotating the center screw, the opening degree of the clamp can be changed, thereby adjusting the hole diameter; the oblong adjustment hole provides additional adjustment space, allowing the position of the clamp to be fine-tuned within a certain range; the internal thread ensures a stable connection between the clamp and the center screw while allowing smooth adjustment.

[0044] The oblong adjustment hole (also called an elliptical hole or a slotted hole) plays an important auxiliary adjustment role in the fixture, supplementing the shortcomings of thread adjustment, mainly in the following aspects:

[0045] Fine-tuning positioning: Although the thread adjustment is precise, the accuracy of the step adjustment is limited by the thread pitch. The oblong adjustment hole allows the clamp to make small displacement adjustments between thread steps, thereby achieving finer aperture control and better matching the diameter of the leaky cable.

[0046] Tolerance adaptation: The diameter of the leaky cable may have a certain manufacturing tolerance, or the diameter may change slightly due to factors such as ambient temperature changes. The oblong adjustment hole provides a certain tolerance space, so that even if the diameter of the leaky cable deviates slightly from the ideal value, the clamp can still firmly fix the leaky cable and avoid applying more force to the leaky cable.

[0047] Installation convenience: During installation, it may be difficult to accurately rotate the center screw to the ideal position due to space limitations or other factors. The presence of the oblong adjustment hole makes installation more flexible. Even if the screw position is slightly deviated, the final precise fixation can be achieved by adjusting the position of the clamp in the hole.

[0048] Stress dispersion: The oblong hole can disperse the pressure of the clamp on the leaky cable to a larger contact area, avoiding stress concentration and thus reducing damage to the outer skin of the leaky cable. It can play a more protective role, especially for leaky cables with sensitive outer skin structures such as MIMO leaky cables.

[0049] Matching with lining steel belt: The oblong hole design can also be used in conjunction with the lining steel belt. For example, the adjustment hole on the lining steel belt can also be designed into a corresponding oblong shape, so that the lining steel belt has a certain amount of activity space in the clamp, better adapting to leaky cables of different diameters, and further improving the flexibility of the clamp.

[0050] This design combines the precision of thread adjustment and the flexibility of oblong hole adjustment, allowing the fixture to adapt to various leaky cables of different diameters while maintaining structural stability and adjustment accuracy.

[0051] Liner protection structure: A removable liner steel belt 3 is added to the inside of the clamp. The material is high-strength engineering plastic (such as PA66 or PEEK). The thickness of the liner steel belt is 0.8-1.2mm, and the inner surface is designed with a micron-level grid texture. The folding buckle structure is adopted for easy installation and replacement. Figure 2 As shown, folding fins 11 are provided at both ends of the inner lining steel belt, and a protrusion of the inner wall of the clamp is provided at the top of the inner wall of the clamp, which is a protrusion or a slot that cooperates with the folding fin, and cooperates to install the folding fin 11. The material of the inner lining steel belt can be engineering plastic, and the outer layer is the inner surface of the clamp. The inner lining steel belt is located between the leaky cable and the inner surface of the clamp, and plays a role of buffering and protection.

[0052] The inner lining steel belt is located inside the clamp, surrounds the inner circumference of the clamp, and directly contacts the leaky cable. Its function is to protect the outer skin of the leaky cable and prevent the leaky cable from being damaged by direct contact with the hard material of the clamp. The connection method of the inner lining steel belt is mainly achieved by the cooperation of the folded wings at both ends and the inner wall of the clamp.

[0053] Both ends of the lining steel belt are respectively provided with upwardly folded wings.

[0054] The top of the inner wall of the clamp is provided with a protrusion or a clamping groove which cooperates with the folding wing.

[0055] Place the lining steel strip inside the clamp, and then insert the folded tab into the protrusion / slot on the top of the clamp inner wall. The folded tab and the protrusion / slot on the inner wall of the clamp interlock with each other, thereby fixing the lining steel strip inside the clamp.

[0056] Advantages of this connection: no additional screws or other fixings are required, easy to install and remove; the cooperation between the folded wing and the inner wall of the clamp can provide sufficient fixing force to ensure that the lining steel belt will not loosen or fall off during use;

[0057] Even if the diameter of the clamp changes (adjusted by rotating the central screw), the lining steel belt can still remain stable and close to the inner wall of the clamp

[0058] The principle of the lining steel belt 3 is to place the lining steel belt: place the lining steel belt into the internal space of the clamp. Make sure the steel belt is straight and not twisted. Fold the wing: fold the folding wings at both ends of the clamp upward 90 degrees. This step is to prepare the wing to be inserted into the fixed structure at the top of the inner wall of the clamp. Insert or slide the wing: insert or slide the folded wing into the raised bottom or slot at the top of the inner wall of the clamp. This design allows the wing to be firmly locked on the lining steel belt while providing sufficient stability to prevent loosening during use. This installation method not only ensures the stability of the lining steel belt, but also retains a certain degree of adjustability to adapt to different diameters of leaky cables or other application requirements without the need for additional fixing parts; installation and removal are convenient and quick to meet the needs of various application scenarios. Allow the lining steel belt to be adjusted in a small range in the clamp to adapt to different diameters of leaky cables; reduce damage to the lining steel belt and improve reusability.

[0059] Wireless monitoring system: Figure 1 As shown, the system integrates a small RF power detector 7 for measuring signal strength and quality; adds a temperature sensor 5 and a pressure sensor 6. The RF power detector 7 is located on the left side of the fixture to measure signal strength and quality, and the pressure sensor is located on the right side of the fixture to monitor the pressure of the fixture on the leaky cable; the wireless communication module 8 uses low-power Bluetooth (BLE) or WiFi technology for data transmission; the integrated microprocessor 9 performs data processing, and a supporting mobile application is developed for remote monitoring. The integrated wireless sensor system realizes real-time status monitoring and improves system reliability. At the same time, the system collects data for a long time, which is helpful for system performance optimization and preventive maintenance.

[0060] All components are integrated on the fixture body without affecting its main functions. Comprehensive monitoring: including signal, temperature and pressure monitoring, to fully grasp the working status of the leaky cable. Real-time data transmission: data can be transmitted to remote equipment in real time through the wireless module. Intelligent processing: the microprocessor can perform local data processing to improve the system response speed and efficiency.

[0061] The clamp is made of 304 stainless steel to improve corrosion resistance, and a detachable fiberglass reinforced plastic handle is added to the threaded rod to improve the operating experience. The design has quick positioning marks and scales for precise adjustment.

[0062] The adjustable aperture design of the clamp enables the clamp to adapt to various leaky cables with diameters ranging from 21mm to 44mm. The inner lining steel belt effectively reduces damage to the outer shell of the leaky cable and prolongs the service life of the leaky cable. The optimized adjustment mechanism and quick positioning design greatly improve the installation efficiency. The modular design makes each component easy to replace and upgrade. It is especially suitable for new leaky cables such as MIMO functional leaky cables.

[0063] The present invention provides a clamp with adjustable aperture and capable of monitoring leaky cable and a control method thereof. There are many methods and approaches to realize the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be realized by existing technologies.

Claims

1. A fixture with adjustable aperture and capable of monitoring leaky cables, characterized in that: The invention comprises a clamp (1), a central screw (2) and a monitoring system; the clamp (1) comprises two sub-clamps, the central screw (2) is connected to the sub-clamps respectively, the central screw (2) is used to adjust the inner diameter of the clamp (1) by rotating, and the monitoring system is arranged on the clamp (1).

2. The fixture with adjustable aperture and capable of monitoring leaky cables according to claim 1, characterized in that: An inner lining steel belt (3) is provided on the inner side of the clamp (1), and the inner lining steel belt (3) is a foldable buckle structure.

3. The fixture with adjustable aperture and capable of monitoring leaky cables according to claim 2, characterized in that: The lining steel belt (3) is provided with a plurality of adjustment holes (4), and the adjustment holes (4) are elliptical holes.

4. The fixture with adjustable aperture and capable of monitoring leaky cables according to claim 3, characterized in that: The inner surface of the lining steel belt (3) is designed with a micron-level grid texture.

5. The fixture with adjustable aperture and capable of monitoring leaky cables according to claim 1, characterized in that: The central screw (2) is connected to the clamp (1) via threads.

6. The fixture with adjustable aperture and capable of monitoring leaky cables according to claim 1, characterized in that: The monitoring system comprises a temperature sensor (5), a pressure sensor (6), a radio frequency detector (7), a wireless communication module (8) and a microprocessor (9); the temperature sensor (5), the pressure sensor (6) and the radio frequency detector (7) transmit data via the wireless communication module (8), and the microprocessor (9) processes the data of the temperature sensor (5), the pressure sensor (6) and the radio frequency detector (7).

7. The fixture with adjustable aperture and capable of monitoring leaky cables according to claim 1, characterized in that: The clamp (1) is provided with an actuator, and the actuator controls the rotation of the central screw (2).

8. The fixture with adjustable aperture and capable of monitoring leaky cables according to claim 7, characterized in that: The central screw rod (2) is provided with a handle, and the handle is provided with a quick positioning mark and a scale.

9. A method for controlling the aperture of a clamp, characterized in that: A fixture with adjustable aperture and capable of monitoring leaky cables as described in any one of claims 1 to 8.

10. The clamp aperture control method according to claim 9, characterized in that: The method comprises, Step 1: The sensor collects data in real time, and the wireless communication module transmits the collected data to the microprocessor; Step 2, the microprocessor performs data analysis on the data obtained in step 1 to determine whether the aperture of the fixture needs to be adjusted. If adjustment is required, the microprocessor sends a control instruction to the actuator; Step 3, the actuator adjusts the aperture of the clamp according to the control instruction of step 2, and feeds back the adjusted state to the microprocessor to form a closed-loop control; Users can monitor the status and adjustment process of the fixture through remote devices.

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