A pipeline connection leakage detection alarm device
By designing a pipeline connection for a leak detection alarm device, and utilizing the built-in sensors in the housing and alarm to achieve real-time leak detection, the problem of difficult leak detection in existing technologies is solved, especially providing a real-time early warning function for nighttime monitoring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AFFILIATED HOSPITAL OF JINING MEDICAL UNIV
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-09
AI Technical Summary
Existing technologies make it difficult to monitor leaks in medical connection pipes in real time, especially at night when there are blind spots in monitoring, failing to meet the need for real-time early warning.
A pipeline connection leakage detection alarm device was designed, which adopts a box and an alarm, with a built-in leakage detection sensor. The signal is transmitted to the alarm through the connecting wire to realize real-time alarm.
It enables real-time detection and alarm of leaks at pipeline connections, solving the problem of difficulty in timely identification of micro-leaks and filling the blind spot of nighttime monitoring.
Smart Images

Figure CN224341929U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of medical connection pipeline testing equipment, specifically relating to a pipeline connection leakage detection alarm device. Background Technology
[0002] In the clinical medical field, medical tubing such as infusion tubing, hemodialysis tubing, and drainage tubing are responsible for delivering medications, blood, and bodily fluids. Tubing connections, such as Luer connectors and three-way valves, are high-risk areas for leaks due to frequent operation, mechanical vibration, or material aging. According to statistics from the *Journal of Medical Equipment Safety Management*, there have been cases of bleeding at dialysis tubing connections leading to significant blood loss in patients, and potentially even causing serious accidents such as blood contamination and air embolism.
[0003] Currently, monitoring of pipeline leaks mainly relies on manual inspections, with medical staff periodically checking pipeline connection points. However, micro-leaks are difficult to identify in a timely manner, and blind spots exist in nighttime monitoring, failing to meet the need for real-time early warning. Therefore, a pipeline connection leak detection and alarm device is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a pipeline connection leakage detection alarm device, which has the function of pipeline connection leakage detection alarm, and solves the problems of existing technology where manual pipeline leakage inspection is difficult to identify micro-leakage in a timely manner, and there are blind spots in nighttime monitoring, which cannot meet the needs of real-time early warning.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a pipeline connection leakage detection alarm device, including a box and an alarm. The box includes an upper box and a lower box. The rear sides of the upper box and the lower box are respectively provided with integrally formed horizontal plates. The two ends of the horizontal plates extend vertically into symmetrical semicircular plates. The ends of the horizontal plates are bent outward to form a handle. A connecting shaft passes through the semicircular plates. A spring is sleeved on the outer wall of the connecting shaft. The front and rear ends of the upper box and the lower box are symmetrically provided with semicircular slots. A leakage detection sensor is provided inside the lower box. A connection port is provided on one side of the lower box. A connecting wire is inserted into the connection port and connected to the alarm.
[0006] Preferably, the leakage detection sensor is a patch capacitive sensor or a fiber optic droplet sensor.
[0007] Preferably, a silicone pad is provided on the semi-circular slot.
[0008] Preferably, the connecting shaft extends horizontally through both semicircular plates, and a spring is sleeved on the connecting shaft, with the two ends of the spring abutting against the bottom wall of the upper box plate and the top wall of the lower box plate, respectively.
[0009] Preferably, the bottom surface of the lower box is provided with a sinking liquid collection tank, a leakage detection sensor is embedded in the sinking liquid collection tank, and the edge of the sinking liquid collection tank is inclined to form a guide slope.
[0010] Preferably, the alarm integrates a processor, a battery, and an audible and visual alarm module.
[0011] Preferably, the front ends of the upper and lower boxes are provided with magnetic locking mechanisms, which include a first magnetic block embedded in the upper box and a second magnetic block embedded in the lower box.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] 1. This utility model is convenient to clamp at the connection of medical connecting pipes. When liquid leakage or dripping occurs at the pipe connection, the leaking liquid will come into contact with the sensor located in the lower box, and transmit the signal to the external alarm through the connecting wire to remind medical staff or relevant personnel to pay attention and handle the situation.
[0014] 2. This utility model has a pipeline connection leakage detection alarm function, which solves the problems of existing technology where pipeline leakage is difficult to detect in time due to manual inspection, and there are blind spots in nighttime monitoring, which cannot meet the needs of real-time early warning. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of a pipeline connection leakage detection alarm device according to one embodiment;
[0017] Figure 2 This is a partial structural diagram of a pipeline connection leakage detection alarm device according to one embodiment;
[0018] In the above figures, 1. Upper box, 2. Lower box, 3. Horizontal plate, 4. Semicircular plate, 5. Handle, 6. Connecting shaft, 7. Spring, 8. Semicircular slot, 9. Silicone pad, 10. Leakage detection sensor, 11. Connection port, 12. Connecting wire, 13. Alarm, 14. Sinking collection tank, 15. First magnetic block, 16. Second magnetic block. Detailed Implementation
[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0021] Example 1, such as Figure 1-2 As shown, a pipeline connection leakage detection alarm device includes a housing and an alarm 13. The housing includes an upper housing 1 and a lower housing 2, which together form the main body of the device and create a pipeline accommodating space. The split design allows for quick opening and closing, and it is made of high-strength engineering plastics such as PEEK, which are corrosion resistant.
[0022] The upper box 1 and the lower box 2 each have an integrally formed horizontal plate 3 on their rear sides. Symmetrical semicircular plates 4 extend vertically from both ends of the horizontal plate 3, and the horizontal plate 3 and the semicircular plates 4 are integrally connected. The semicircular plates 4 provide the hinge fulcrum. The end of the horizontal plate 3 bends outward to form a handle 5, which is the area for thumb pressure, conforming to ergonomics and allowing for one-handed operation. A connecting shaft 6 passes through the semicircular plates 4, connecting them. A spring 7 is fitted on the outer wall of the connecting shaft 6, providing automatic closing force. This ensures a secure clamping without damaging the tubing. Pressing the handle 5 compresses the spring 7, opening the box and enabling quick one-handed, one-second assembly.
[0023] The upper box 1 and the lower box 2 have symmetrical semi-circular slots 8 at their front and rear ends. These slots 8 clamp the tubing, forming a complete circular channel. The number of semi-circular slots 8 is determined by the size of the boxes; multiple slots 8 can be used to monitor multiple tubing. A leak detection sensor 10 is installed inside the lower box 2 to detect the presence of liquid. A connection port 11 is located on one side of the lower box 2. This port serves as the sensor signal output interface, and a connecting wire 12 is inserted into it, connecting to an alarm 13. The connecting wire 12 transmits the sensor signal and uses medical-grade TPU cable. The alarm 13 emits an audible and visual alarm.
[0024] The specific design of the aforementioned key components will be discussed in detail below:
[0025] The leakage detection sensor 10 is either a patch capacitive sensor or a fiber optic droplet sensor. The patch capacitive sensor detects droplets by changing the dielectric constant of the liquid, while the fiber optic droplet sensor uses the change in the critical angle of total internal reflection caused by the droplet to trigger a sudden change in light intensity. Both the patch capacitive sensor and the fiber optic droplet sensor are existing technologies, and their specific structures will not be described in detail.
[0026] A silicone pad 9 is provided on the semi-circular slot 8. The silicone pad 9 buffers the clamping pressure and prevents the pipeline from deforming.
[0027] The connecting shaft 6 horizontally passes through the two semi-circular plates 4. A spring 7 is sleeved on the connecting shaft 6, with its two ends abutting against the bottom wall of the upper box body 1 horizontal plate 3 and the top wall of the lower box body 2 horizontal plate 3, respectively. When the handle 5 is pressed, the spring 7 compresses and opens the box body. After release, the spring 7 rebounds, achieving automatic closure.
[0028] The bottom surface of the lower box 2 is provided with a sinking liquid collection tank 14, and a leakage detection sensor 10 is embedded in the sinking liquid collection tank 14. The edge of the sinking liquid collection tank 14 is inclined to form a guide slope. When in use, the device is laid flat, and the leaked liquid flows into the sinking liquid collection tank 14 of the lower box 2 under the action of gravity. The guide slope of the sinking liquid collection tank 14 quickly gathers the leaked liquid to the sensor detection area.
[0029] The alarm 13 integrates a processor, a battery, and an audible and visual alarm module. In a preferred embodiment, the alarm 13 uses an ARM Cortex-M0 chip as the processor, a 3.7V / 600mAh rechargeable lithium battery, and an LED and a piezoelectric buzzer as the audible and visual module. It also has a reserved pad for a Bluetooth 5.2 module. The alarm 13 receives sensor signals and triggers the alarm.
[0030] The upper box 1 and the lower box 2 are equipped with magnetic locking mechanisms at their front ends. The magnetic locking mechanisms include a first magnetic block 15 embedded in the upper box 1 and a second magnetic block 16 embedded in the lower box 2. The first magnetic block 15 and the second magnetic block 16 automatically attract and lock when the upper box 1 and the lower box 2 are closed.
[0031] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A pipeline connection leak detection alarm device comprising a box body and an alarm, characterized in that, The box body includes an upper box body and a lower box body. The rear sides of the upper box body and the lower box body are respectively provided with integrally formed horizontal plates. The two ends of the horizontal plates extend vertically into symmetrical semi-circular plates. The ends of the horizontal plates are bent outward to form a handle. A connecting shaft passes through the semi-circular plates. A spring is sleeved on the outer wall of the connecting shaft. The front and rear ends of the upper box body and the lower box body are symmetrically provided with semi-circular slots. A leakage detection sensor is provided inside the lower box body. A connection port is provided on one side of the lower box body. A connecting wire is inserted into the connection port and connected to an alarm.
2. The piping connection leak detection alarm apparatus according to claim 1, wherein The leakage detection sensor is a patch capacitive sensor or a fiber optic droplet sensor.
3. The piping connection leak detection alarm apparatus according to claim 1, wherein A silicone pad is provided on the semi-circular slot.
4. The piping connection leak detection alarm apparatus according to claim 1, wherein The connecting shaft runs horizontally through both semicircular plates, and a spring is fitted on the connecting shaft. The two ends of the spring abut against the bottom wall of the upper box plate and the top wall of the lower box plate, respectively.
5. The piping connection leak detection alarm apparatus according to claim 1, wherein The bottom surface of the lower box is provided with a sinking liquid collection tank, and a leakage detection sensor is embedded in the sinking liquid collection tank. The edge of the sinking liquid collection tank is inclined to form a guide slope.
6. The piping connection leak detection alarm apparatus according to claim 1, wherein The alarm integrates a processor, battery, and audible and visual alarm module.
7. The plumbing connection leak detection alarm apparatus according to claim 1, wherein, The upper and lower boxes are equipped with magnetic locking mechanisms at their front ends. The magnetic locking mechanisms include a first magnetic block embedded in the upper box and a second magnetic block embedded in the lower box.