Pressure monitoring self-adaptive connecting device

Abstract

The invention discloses a pressure monitoring self-adaptive connecting device, which relates to the technical field of medical instruments and comprises a sealing assembly arranged on equipment and a connecting assembly used for mounting a pressure box, the sealing assembly comprises a connector and a support, a connecting through groove is formed in the support, and an elastic piece coaxially arranged outside the connector in a sleeving mode is arranged between the support and the connector. One end of the elastic piece is fixedly installed on the side wall of the connecting through groove, and the other end of the elastic piece is fixedly installed on the side wall of the connector. A channel communicated with the pressure sensor is formed in the connector. The connecting assembly is used for driving the pressure box to move so that the pressure box can abut against the connector. Through the arrangement of the elastic piece and the connecting assembly, the self-adaptive connector can abut against the pressure box, and it can be ensured that stable and reliable sealing connection is achieved between the pressure box and a monitoring interface on the hemodialysis or purification equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a pressure monitoring adaptive connection device. Background Art

[0002] During the treatment of blood purification or hemodialysis, in order to ensure the safety of treatment, pressure monitoring is required at multiple locations in the extracorporeal circulation circuit. Therefore, a pressure box needs to be connected to the pressure monitoring interface on the hemodialysis or blood purification equipment.

[0003] The pressure cell is a device that is divided into two independent chambers by a diaphragm. The two independent chambers are a fluid chamber and a gas chamber. When the liquid flows through the fluid chamber, the change in its flow state will cause the change in the pressure difference on both sides of the diaphragm. The change in pressure difference will be transmitted to the gas chamber through the diaphragm. The pressure sensor installed in the gas chamber can accurately detect tiny pressure changes and indirectly calculate the actual flow of the liquid based on this.

[0004] The traditional method is to monitor the pressure in the pressure box through the pressure sensor in the equipment. The pressure boxes on the integrated pipeline consumables need to be docked with the monitoring interfaces on the hemodialysis or blood purification equipment one by one. The process is cumbersome and inefficient, which brings operational inconvenience and additional workload to medical staff. In order to simplify the above operations, multiple pressure boxes are currently integrated into one to achieve one-click docking of multiple pressure boxes with all pressure monitoring interfaces at the same time, which simplifies the operation process and improves work efficiency at the same time. However, the positions of the pressure monitoring interfaces on most hemodialysis or purification equipment are fixed, and shape and position deviations are inevitable in the production process of integrated pipeline consumables, which will affect the sealing and docking reliability of each pressure box on the integrated pipeline consumables and the equipment interface. Summary of the invention

[0005] The object of the present invention is to provide a pressure monitoring adaptive connection device, which can ensure a stable and reliable sealed connection between a pressure box and a monitoring interface on a hemodialysis or purification device.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a pressure monitoring adaptive connection device, including a closed component arranged on the equipment and a connection component for installing a pressure box; the closed component includes a joint and a support, a connecting groove is opened on the support, and an elastic member coaxially sleeved outside the joint is arranged between the support and the joint; one end of the elastic member is fixedly mounted on the side wall of the connecting groove, and the other end is fixedly mounted on the side wall of the joint; a channel connected to the pressure sensor is opened in the joint, and the connection component is used to drive the pressure box to move so that the pressure box and the joint are abutted.

[0007] The technical principle of the present invention is as follows: the connector can move circumferentially in the connecting groove to become an adaptive interface. When the connecting assembly drives the pressure box to move and abut against the connector, the connector and the pressure box can be pressed tightly together through the setting of the elastic part, thereby overcoming the shape and position deviations that are inevitable in the production process of the integrated pipeline consumables and ensuring the stability and sealing between the pressure box.

[0008] Furthermore, the connecting assembly includes a mounting plate, a first connecting plate, a second connecting plate and a driving member, the driving member and the second connecting plate are both arranged in the device, the driving member and the second connecting plate are abutted against each other to drive the second connecting plate to move, the first connecting plate passes through the device and is arranged between the mounting plate and the second connecting plate, the mounting plate is arranged outside the device, and the pressure box is fixedly mounted on the mounting plate.

[0009] Furthermore, one end of the connector away from the blood purification or hemodialysis device is tapered.

[0010] Furthermore, the channel includes a straight first channel and a conical second channel which are interconnected.

[0011] Furthermore, the angle between the busbar and the central axis of the second channel on the same vertical plane ranges from 0.5° to 150°, the interface where the pressure box 9 contacts the joint 1 is also a cone with an angle range of 0.5° to 150°, and the size of the angle of the second channel matches the size of the angle at the pressure box interface.

[0012] Furthermore, the angle range of the circumferential movement of the joint around the connection point with the equipment in the connecting groove is 0° to 15°.

[0013] Furthermore, the travel range of the elastic member is 0 to 10 mm.

[0014] Furthermore, it also includes a fixing component arranged in the blood purification or hemodialysis equipment for fixing the pressure sensor, the fixing component includes a shell with a first cavity and a second cavity interconnected, the pressure sensor is arranged in the second cavity, the end of the connector away from the pressure box passes through the first cavity and abuts against the pressure sensor, a first seal abuts against the side wall of the connector is arranged in the first cavity, and a second seal abuts against the pressure sensor is arranged in the second cavity.

[0015] Furthermore, a tooth groove is formed on the side wall of the first cavity, a protrusion is provided on the side wall of the joint close to the pressure sensor, the first sealing member is coaxially sleeved on the protrusion, and the first sealing member is matched with the tooth groove.

[0016] Furthermore, a retaining ring for fixing the pressure sensor is also arranged in the second cavity.

[0017] The beneficial effects of the present invention are:

[0018] 1. Through the arrangement of elastic parts and connecting components, the joint can move circumferentially in the connecting groove to form an adaptive interface pressure box to press against it, thus overcoming the inevitable shape and position deviations in the production process of integrated pipeline consumables, and ensuring a stable and reliable sealing connection between the pressure box and the monitoring interface on the hemodialysis or purification equipment;

[0019] 2. The first sealing member can be expanded by setting the protrusion, so that the first sealing member can be closely fitted with the alveolar socket, thereby forming a reliable seal;

[0020] 3. By setting the second seal, it can be ensured that the gas passing through the joint fully acts on the pressure sensor, thereby improving the stability and accuracy of the pressure sensor detection value. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a second structural schematic diagram of the present invention;

[0023] Figure 3 is a cross-sectional view of the present invention;

[0024] Figure 4 is a cross-sectional view of the joint in the present invention;

[0025] Figure 5 is a cross-sectional view of the housing in the present invention;

[0026] Figure 6 It is a cross-sectional view of the connection between the pressure box and the joint;

[0027] Figure 7 is a first structural schematic diagram of a connection component;

[0028] Figure 8 is a second structural schematic diagram of the connection component;

[0029] Fig. 9 It is a schematic diagram of the joint rotation in the present invention.

[0030] In the above drawings:

[0031] 1. Connector; 101. First channel; 102. Second channel;

[0032] 2. Elastic parts;

[0033] 3. Support; 301. Connecting slot;

[0034] 4. housing; 401. first cavity; 402. second cavity;

[0035] 5. First sealing member; 6. Second sealing member; 7. Retaining ring; 8. Pressure sensor; 9. Pressure box;

[0036] 10. Mounting plate; 11. First connecting plate; 12. Second connecting plate; 13. Driving member. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; the structures described in various embodiments can be freely combined without any conflict in structure or principle.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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 the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0040] Some embodiments of the present invention are described below in conjunction with the accompanying drawings:

[0041] like Figure 1-Figure 8 As shown, the present invention proposes a pressure monitoring adaptive connection device, including a closed component arranged on the equipment and a connection component for installing a pressure box 9; the closed component includes a joint 1 and a support 3, a connecting groove 301 is opened on the support 3, and an elastic member 2 coaxially sleeved outside the joint 1 is arranged between the support 3 and the joint 1; one end of the elastic member 2 is fixedly mounted on the side wall of the connecting groove 301, and the other end is fixedly mounted on the side wall of the joint 1; a channel connected to the pressure sensor is opened in the joint 1, and the connection component is used to drive the pressure box 9 to move so that the pressure box 9 and the joint 1 are abutted.

[0042] The pressure box 9 is evenly distributed on the connecting component. When the connecting component moves, it drives the pressure box 9 to move synchronously, so that the pressure box 9 and the connector 1 are against each other. When there is an error between the interface position of the pressure box 9 and the connector 1, the connector 1 moves circumferentially in the connecting groove 301 around the connection point between the connector 1 and the blood purification or hemodialysis equipment, and the elastic member 2 moves synchronously with the connector 1 to match the position of the interface of the pressure box 9. When the pressure box 9 is pressed into the connector, the elastic member 2 will generate a reaction force, so that the connector 1 and the pressure box 9 are always against each other and sealed. Through the matching setting of the connector 1 and the elastic member 2, the connector 1 can be adaptively connected to the pressure box 9 to compensate for the shape and position deviation caused by the production process, and ensure the stability and sealing between the connector 1 and the pressure box 9; and through the setting of the elastic member 2, the connector 1 is given a certain floatability (it can move around the connection point between the connector 1 and the blood purification or hemodialysis equipment). Here, the elastic member 2 can be selected as a spring, a spring, etc. In order to ensure the stability and sealing between the connector 1 and the pressure box 9, a spring is preferably used here. The change of air pressure in the gas chamber of the pressure box is introduced into the device through the channel in the joint 1, and then the air pressure of each channel is connected in series and the overall air pressure acts on the pressure sensor 8 to detect the pressure change in real time.

[0043] The angle range of the circumferential movement of the connector 1 around the connection point between the connector 1 and the equipment in the connecting groove 301 is 0° to 15°. When the angle of the circumferential movement is 0°, the central axis of the connector 1 coincides with the central axis of the pressure box 9, and the connector 1 and the pressure box 9 can form a good sealing effect; when the angle of the circumferential movement is other angles, through a certain angle of motion compensation, the connector 1 can better adapt to the slight offset and vibration of the pipeline or equipment, thereby reducing the risk of leakage caused by alignment problems and improving the reliability of the overall system; secondly, it helps to disperse the pressure in the stress concentration area, reduce fatigue damage caused by continuous vibration or temperature changes, extend the service life of the equipment, and maintain long-term stable operation of the system; finally, even if there is a slight installation error, the best fit can be achieved through the motion compensation of the connector 1.

[0044] The stroke range of the elastic part is 0 to 10 mm. At the 0 mm position, the connector 1 has formed preliminary contact with the mating part, and the 10 mm stroke can provide additional space to ensure that in actual applications, even if there are slight dimensional deviations or alignment problems, full contact can be achieved through adjustment, thereby ensuring good sealing performance; the 0 to 10 mm stroke range helps to disperse stress during installation and avoid local stress concentration caused by forced docking, which can extend the service life of the connector 1 and reduce maintenance requirements; the 0 to 10 mm stroke provides a certain amount of fault tolerance for the installation process. Even if it is not fully aligned during the initial installation, it can be corrected through adaptive adjustment. In some high-pressure or high-risk applications, the 0 to 10 mm stroke can be used as a safety buffer to prevent damage to the connector 1 due to overpressure or other unexpected situations.

[0045] Furthermore, if Figure 7 and Figure 8 As shown, the connecting assembly includes a mounting plate 10, a first connecting plate 11, a second connecting plate 12 and a driving member 13. The driving member 13 and the second connecting plate 12 are both arranged in the device. The driving member 13 and the second connecting plate 12 are abutted against each other to drive the second connecting plate 12 to move. The first connecting plate 11 passes through the device and is arranged between the mounting plate 10 and the second connecting plate 12. The mounting plate 10 is arranged outside the device, and the pressure box 9 is fixedly installed on the mounting plate 10.

[0046] The pressure box 9 and the mounting plate 10 are integrally formed, the driving member 13 is a telescopic motor, and the second connecting plate 12 is fixedly mounted on the power output shaft of the telescopic motor. When the telescopic motor is working, the second connecting plate 12 is driven to move synchronously, and the second connecting plate 12 drives the mounting plate 10 to move synchronously through the first connecting plate 11, so as to drive the pressure box 9 to move, so that the pressure box 9 and the joint are against each other. The travel of the telescopic motor is greater than the maximum error spacing between the joint and the pressure box 9, so as to ensure that all joints and the pressure box 9 are sealed.

[0047] Furthermore, if Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, the end of the connector 1 away from the blood purification or hemodialysis device is tapered.

[0048] At present, there are mainly two types of pressure monitoring interfaces on hemodialysis or blood purification equipment: one is a standard 6% Luer inner cone locking connector 1 suitable for general pipeline consumables, and the other is a non-standard structure connector 1 designed for specific matching consumables. The end of the pressure box 9 connected to the connector 1 is a cone that matches the connector 1. Through the above setting, the cone structure has the ability to dock with special consumables and also has a guiding function, ensuring the accuracy and stability during the connection process. The connector 1 with a cone setting can also limit the elastic member 2 to prevent the elastic member from collapsing from the connector 1.

[0049] Furthermore, if Figure 3 and Figure 4 As shown, the channel includes a straight cylindrical first channel 101 and a conical second channel 102 which are interconnected.

[0050] The diameter of the lower end of the second channel 102 is the same as the diameter of the first channel 101, and the angle between the generatrix and the central axis of the conical second channel 102 on the same vertical plane is in the range of 0.5° to 150°. The interface where the pressure box 9 contacts the connector 1 is also a cone with an angle in the range of 0.5° to 150°, and the size of the angle of the second channel 102 matches the size of the angle at the interface of the pressure box 9, and the corresponding connector 1 is matched according to the size of the angle at the interface of the pressure box 9.

[0051] When the angle of the interface of the pressure box 9 and the design angle of the second conical channel 102 are the minimum value of 0.5°, sufficient contact area and stability can still be provided to ensure good performance even under extreme conditions.

[0052] When the maximum design angle is set to 150°, the design allows the connection between the pressure box 9 and the connector 1 to be achieved within a very wide angle range. A larger cone angle can more easily accommodate larger axial and radial position deviations, making the installation process more flexible and reducing the need for precise alignment. In certain applications, such as high pressure or high vibration environments, a larger contact surface can provide better sealing effects and prevent leakage.

[0053] The design angle here is preferably 30°, which can balance the tightness of the connection, the convenience of installation and the economy of manufacturing. The 30° cone angle provides a moderate contact surface, which helps to reduce material stress concentration while maintaining sufficient strength, thereby improving the overall stability and durability of the joint and facilitating the formation of an effective sealing layer, especially in applications that need to withstand a certain pressure or prevent leakage, which can ensure that a good seal is formed at the joint and reduce the penetration of fluid or gas; secondly, the 30° cone angle provides a better alignment tolerance, and the pressure box 9 and the joint 1 can also achieve an effective connection under a slight axial or radial offset, which simplifies the installation process and reduces the requirements for operating accuracy; finally, from a manufacturing perspective, the 30° cone angle can adapt to most processing technologies while keeping the production cost within a reasonable range.

[0054] The conical second channel 102 can improve the sealing between the connector 1 and the sealing box. The straight first channel 101 can ensure the stability of the gas passing through the first channel 101 and reduce gas fluctuations, thereby making the data detected by the pressure sensor 8 more stable.

[0055] Furthermore, if Figure 1 , Figure 3 and Figure 5 As shown, it also includes a fixing component arranged in the blood purification or hemodialysis equipment for fixing the pressure sensor 8. The fixing component includes a housing 4 with a first cavity 401 and a second cavity 402 connected to each other, the pressure sensor 8 is arranged in the second cavity 402, the end of the connector 1 away from the pressure box 9 passes through the first cavity 401 and abuts against the pressure sensor 8, a first sealing member 5 abutting against the side wall of the connector 1 is arranged in the first cavity 401, and a second sealing member 6 abutting against the pressure sensor 8 is arranged in the second cavity 402.

[0056] By setting the fixed components, multiple pressure sensors 8 matching the pressure box 9 can be set at the same time, so that the pressure changes in each pressure box 9 can be detected individually, and more accurate detection results can be obtained. At the same time, the source of the pressure change can be accurately confirmed through the pressure box 9 with larger changes.

[0057] By providing the first sealing member 5, the first cavity 401 can be isolated from the outside world, so as to prevent the gas in the first cavity 401 from leaking to the outside world, thereby improving the accuracy of the data detected by the pressure sensor 8. By providing the second sealing member 6, the contact surface between the joint 1 and the pressure sensor 8 can be sealed, thereby further improving the accuracy of the data detected by the pressure sensor 8.

[0058] Furthermore, if Figure 3 and Figure 5As shown, a tooth groove is opened on the side wall of the first cavity 401, a protrusion is provided on the side wall of the connector 1 close to the pressure sensor 8, the first sealing member 5 is coaxially sleeved on the protrusion, and the first sealing member 5 is matched with the tooth groove.

[0059] The first sealing member 5 is made of elastic material, and the first sealing member 5 can be expanded by setting the protrusion, so that the first sealing member 5 can be closely fitted in the tooth socket, thereby improving the sealing performance and the accuracy of the monitoring data of the pressure sensor 8. The protrusion here can be wavy, stepped, pagoda-shaped, etc. In order to promote the expansion of the first sealing member 5, it is preferably a pagoda shape.

[0060] Furthermore, if Figure 2 As shown, a retaining ring 7 for fixing the pressure sensor 8 is also provided in the second cavity 402 .

[0061] The arrangement of the retaining ring 7 not only fixes the pressure sensor 8 but also further improves the stability and sealing of the overall structure through its pressing force.

Claims

1. A pressure monitoring adaptive connection device, characterized in that: The invention comprises a sealing component arranged on the equipment and a connecting component for installing a pressure box (9); the sealing component comprises a joint (1) and a support (3); a connecting groove (301) for the joint (1) to move circumferentially is formed on the support (3); an elastic member (2) coaxially sleeved outside the joint (1) is provided between the support (3) and the joint (1); one end of the elastic member (2) is fixedly installed in the connecting groove (301), and the other end is fixedly installed on the joint (1); a channel connected to a pressure sensor (8) is formed in the joint (1); the connecting component is used to drive the pressure box (9) to move so that the pressure box (9) and the joint (1) abut against each other and are connected.

2. A pressure monitoring adaptive connection device according to claim 1, characterized in that: The connection assembly comprises a mounting plate (10), a first connecting plate (11), a second connecting plate (12) and a driving member (13); the driving member (13) and the second connecting plate (12) are both arranged in the device; the driving member (13) and the second connecting plate (12) are abutted against each other to drive the second connecting plate (12) to move; the first connecting plate (11) passes through the device and is arranged between the mounting plate (10) and the second connecting plate (12); the mounting plate (10) is arranged outside the device; and the pressure box (9) is fixedly mounted on the mounting plate (10).

3. A pressure monitoring adaptive connection device according to claim 1 or 2, characterized in that: The end of the connector (1) away from the blood purification or hemodialysis equipment is tapered.

4. A pressure monitoring adaptive connection device according to claim 1 or 2, characterized in that: The channel comprises a straight cylindrical first channel (101) and a conical second channel (102) which are communicated with each other.

5. A pressure monitoring adaptive connection device according to claim 3, characterized in that: The channel comprises a straight cylindrical first channel (101) and a conical second channel (102) which are communicated with each other.

6. A pressure monitoring adaptive connection device according to claim 4, characterized in that: The angle between the busbar of the second channel (102) and the central axis on the same vertical plane ranges from 0.5° to 150°, and the interface where the pressure box 9 contacts the joint 1 is also a cone with an angle range of 0.5° to 150°, and the size of the angle of the second channel (102) matches the size of the angle at the interface of the pressure box (9).

7. A pressure monitoring adaptive connection device according to claim 5, characterized in that: The angle between the busbar of the second channel (102) and the central axis on the same vertical plane ranges from 0.5° to 150°, and the interface where the pressure box 9 contacts the joint 1 is also a cone with an angle range of 0.5° to 150°, and the size of the angle of the second channel (102) matches the size of the angle at the interface of the pressure box (9).

8. A pressure monitoring adaptive connection device according to claim 1, 2, 5, 6 or 7, characterized in that: The angle range of the joint (1) moving circumferentially around the connection point with the device in the connecting groove (301) is 0° to 15°.

9. A pressure monitoring adaptive connection device according to claim 3, characterized in that: The angle range of the joint (1) moving circumferentially around the connection point with the device in the connecting groove (301) is 0° to 15°.

10. A pressure monitoring adaptive connection device according to claim 4, characterized in that: The angle range of the joint (1) moving circumferentially around the connection point with the device in the connecting groove (301) is 0° to 15°.

11. A pressure monitoring adaptive connection device according to claim 1, 2, 5, 6, 7, 9 or 10, characterized in that: The travel range of the elastic member (2) is 0 to 10 mm.

12. A pressure monitoring adaptive connection device according to claim 3, characterized in that: The travel range of the elastic member (2) is 0 to 10 mm.

13. A pressure monitoring adaptive connection device according to claim 4, characterized in that: The travel range of the elastic member (2) is 0 to 10 mm.

14. A pressure monitoring adaptive connection device according to claim 8, characterized in that: The travel range of the elastic member (2) is 0 to 10 mm.

15. A pressure monitoring adaptive connection device according to claim 1, 2, 5, 6, 7, 9, 10, 12, 13 or 14, characterized in that: The device also includes a fixing component arranged in the device for fixing the pressure sensor (8), the fixing component including a housing (4) having a first cavity (401) and a second cavity (402) which are interconnected, the pressure sensor (8) being arranged in the second cavity (402), the end of the connector (1) away from the pressure box (9) passing through the first cavity (401) and abutting against the pressure sensor (8), the first cavity (401) being provided with a first sealing member (5) abutting against a side wall of the connector (1), and the second cavity (402) being provided with a second sealing member (6) abutting against the pressure sensor (8).

16. A pressure monitoring adaptive connection device according to claim 3, characterized in that: The device also includes a fixing component arranged in the device for fixing the pressure sensor (8), the fixing component including a housing (4) having a first cavity (401) and a second cavity (402) which are interconnected, the pressure sensor (8) being arranged in the second cavity (402), the end of the connector (1) away from the pressure box (9) passing through the first cavity (401) and abutting against the pressure sensor (8), the first cavity (401) being provided with a first sealing member (5) abutting against a side wall of the connector (1), and the second cavity (402) being provided with a second sealing member (6) abutting against the pressure sensor (8).

17. A pressure monitoring adaptive connection device according to claim 4, characterized in that: The device also includes a fixing component arranged in the device for fixing the pressure sensor (8), the fixing component including a housing (4) having a first cavity (401) and a second cavity (402) which are interconnected, the pressure sensor (8) being arranged in the second cavity (402), the end of the connector (1) away from the pressure box (9) passing through the first cavity (401) and abutting against the pressure sensor (8), the first cavity (401) being provided with a first sealing member (5) abutting against a side wall of the connector (1), and the second cavity (402) being provided with a second sealing member (6) abutting against the pressure sensor (8).

18. A pressure monitoring adaptive connection device according to claim 8, characterized in that: The device also includes a fixing component arranged in the device for fixing the pressure sensor (8), the fixing component including a housing (4) having a first cavity (401) and a second cavity (402) which are interconnected, the pressure sensor (8) being arranged in the second cavity (402), the end of the connector (1) away from the pressure box (9) passing through the first cavity (401) and abutting against the pressure sensor (8), the first cavity (401) being provided with a first sealing member (5) abutting against a side wall of the connector (1), and the second cavity (402) being provided with a second sealing member (6) abutting against the pressure sensor (8).

19. A pressure monitoring adaptive connection device according to claim 11, characterized in that: The device also includes a fixing component arranged in the device for fixing the pressure sensor (8), the fixing component including a housing (4) having a first cavity (401) and a second cavity (402) which are interconnected, the pressure sensor (8) being arranged in the second cavity (402), the end of the connector (1) away from the pressure box (9) passing through the first cavity (401) and abutting against the pressure sensor (8), the first cavity (401) being provided with a first sealing member (5) abutting against a side wall of the connector (1), and the second cavity (402) being provided with a second sealing member (6) abutting against the pressure sensor (8).

20. The pressure monitoring adaptive connection device according to claim 15, characterized in that: A tooth groove is formed on the side wall of the first cavity (401); a protrusion is provided on the side wall of the joint (1) close to the pressure sensor (8); the first sealing member (5) is coaxially sleeved on the protrusion, and the first sealing member (5) is arranged in cooperation with the tooth groove.

21. A pressure monitoring adaptive connection device according to any one of claims 16 to 19, characterized in that: A tooth groove is formed on the side wall of the first cavity (401); a protrusion is provided on the side wall of the joint (1) close to the pressure sensor (8); the first sealing member (5) is coaxially sleeved on the protrusion, and the first sealing member (5) is arranged in cooperation with the tooth groove.

22. A pressure monitoring adaptive connection device according to claim 15, characterized in that: A retaining ring (7) for fixing the pressure sensor (8) is also provided in the second cavity (402).

23. A pressure monitoring adaptive connection device according to any one of claims 16 to 19, characterized in that: A retaining ring (7) for fixing the pressure sensor (8) is also provided in the second cavity (402).

24. A pressure monitoring adaptive connection device according to claim 21, characterized in that: A retaining ring (7) for fixing the pressure sensor (8) is also provided in the second cavity (402).

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