Pipeline assembly and sphygmomanometer

Abstract

The utility model belongs to the technical field of medical equipment, and discloses a pipeline assembly and a sphygmomanometer. The pipeline assembly comprises a main pipeline with a first pipe opening and a second pipe opening, an air release valve arranged at the first pipe opening, an air connector arranged at the second pipe opening and a front side arranged on the inner wall of the main pipeline and located in the air inlet direction of the air release valve; the dust blocking structure collects and blocks dust in gas flowing to the gas release valve so as to prevent the dust from flowing to the gas release valve and blocking the gas release valve, so that normal exhaust of the gas release valve is guaranteed, normal work of the sphygmomanometer provided with the pipeline assembly is guaranteed, meanwhile, the fault rate of the sphygmomanometer is reduced, and the service life of the sphygmomanometer is prolonged. The service life of the sphygmomanometer is effectively prolonged, and the use experience of a user is greatly improved; the sphygmomanometer comprises a shell, a cuff and the pipeline assembly, the pipeline assembly is arranged in the shell, and the cuff is communicated with the air connector through the air pipe so as to guarantee normal work of the sphygmomanometer.

Description

Technical Field

[0001] The present application belongs to the technical field of medical equipment, and specifically relates to a pipeline assembly and a sphygmomanometer. Background Art

[0002] Blood pressure is one of the important physiological parameters of the human body and is an important basis for clinical diagnosis of diseases, observation of treatment effects, and prognosis judgment. Traditional sphygmomanometers are mainly mercury sphygmomanometers. With the development of technology, electronic sphygmomanometers using oscillometric method have been widely used.

[0003] An electronic sphygmomanometer usually includes a main unit, a cuff tied to the user's arm, and an air pipe connecting the main unit and the cuff, wherein the main unit includes a shell and a pipeline assembly arranged inside the shell, and the pipeline assembly includes a main pipeline, an air pump connected to the main pipeline, a solenoid valve connected to the main pipeline, a deflation valve connected to the main pipeline, and an air joint connected to the main pipeline and connected to the user and the air pipe. The process of measuring blood pressure with a sphygmomanometer is usually divided into three stages: inflation stage, measurement stage, and deflation stage. Regardless of the stage, the deflation valve is always in a leaking state.

[0004] When using a sphygmomanometer to measure blood pressure, the air pipe needs to be installed first so that the air pipe is connected to the air joint; however, when the air pipe is plugged in and out, dust may enter the air joint, and then the dust may enter the air relief valve when the sphygmomanometer is working. Since the air leakage aperture of the air relief valve is small, the air relief valve may be blocked, which will cause the air relief valve to fail to exhaust normally, thereby affecting the normal operation of the sphygmomanometer. Utility Model Content

[0005] The present application provides a pipeline assembly and a sphygmomanometer to ensure normal exhaust of the air release valve, thereby ensuring normal operation of the sphygmomanometer.

[0006] The technical solution adopted in this application is:

[0007] A pipeline assembly, comprising:

[0008] A main pipe having a first pipe opening and a second pipe opening;

[0009] a gas relief valve, which is arranged at the first pipe opening;

[0010] A gas joint, which is arranged at the second pipe opening;

[0011] The dust blocking structure is arranged on the inner wall of the main pipeline and is located in front of the air intake direction of the air relief valve, so that when the air relief valve is deflated, the dust blocking structure collects and blocks dust in the gas flowing toward the air relief valve.

[0012] By adopting the above-mentioned technical scheme, since the pipeline assembly in the present application is provided with a dust blocking structure and is located in the front side of the air inlet direction of the air relief valve, when the air relief valve is deflated, the dust blocking structure blocks the dust entering the main pipeline through the air joint, so as to prevent the dust from flowing to the air relief valve and causing the air relief valve to be blocked, thereby ensuring the normal exhaust of the air relief valve, so as to ensure the normal operation of the blood pressure monitor equipped with the pipeline assembly in the present application, and at the same time reducing the failure rate of the blood pressure monitor, improving the product quality of the blood pressure monitor, and effectively extending the service life of the blood pressure monitor, greatly improving the user experience.

[0013] Optionally, the main pipeline is provided with a first pipeline extending upward, the first pipe opening is arranged at the top of the first pipeline, and the dust blocking structure includes a first dust blocking portion protruding from the inner wall of the first pipeline.

[0014] By adopting the above-mentioned technical solution, since the first pipe opening is arranged at the top of the first pipeline and the first pipeline extends upward, the difficulty of dust moving to the air relief valve is greatly increased. At the same time, the first dust block portion protrudes from the inner wall of the first pipeline, so that the first dust block portion can block the dust moving upward, thereby further increasing the difficulty of dust moving to the air relief valve, thereby greatly reducing the risk of the air relief valve being blocked by dust, and further ensuring the normal operation of the sphygmomanometer equipped with the pipeline assembly in this application.

[0015] Optionally, at least two first dust shields are arranged at intervals along the extension direction of the first pipeline.

[0016] By adopting the above-mentioned technical solution, since the first dust shield is protruding from the inner wall of the first pipeline, the airflow will be accelerated when it moves to the first dust shield, and at least two first dust shields are arranged at intervals along the extension direction of the first pipeline, so that the airflow will be decelerated when it flows between two adjacent first dust shields, so that dust adheres to the inner wall of the first pipeline, so as to further increase the difficulty of dust moving to the air release valve, thereby further reducing the risk of the air release valve being blocked, so as to ensure the normal operation of the blood pressure meter installed with the pipeline assembly in this application, thereby improving the product quality of the blood pressure meter and the user experience.

[0017] Optionally, the main pipeline is provided with a second pipeline extending upward, the second pipe opening is arranged at the top of the second pipeline, and the dust blocking structure also includes a second dust blocking portion protruding from the inner wall of the second pipeline and the inner wall of the main pipeline.

[0018] By adopting the above technical solution, since the second pipe opening is arranged at the top of the second pipe and the second pipe is extended upward, the movement path of dust entering the main pipe through the air joint and moving toward the position of the air relief valve is increased, thereby greatly increasing the difficulty of dust moving to the air relief valve, and the second dust blocking portion is protruding from the inner wall of the main pipe, so that the second dust blocking portion can block the dust entering the main pipe through the air joint and moving toward the air relief valve, thereby further increasing the dust blocking effect, thereby further reducing the occurrence of the air relief valve being blocked.

[0019] Optionally, each of the second dust shield parts is provided with a dust shield surface on one side close to the gas joint, and each of the dust shield surfaces forms a dust containing groove with the corresponding inner wall of the second pipeline or the inner wall of the main pipeline, so that dust entering the second pipeline and the main pipeline through the gas joint is blocked by the dust shield surface and collected in the dust containing groove.

[0020] By adopting the above-mentioned technical scheme, since a dust blocking surface is provided on the side of the second dust blocking portion close to the gas joint and a dust containing groove is formed between the second dust blocking portion and the inner wall of the second pipeline or the inner wall of the main pipeline, the dust entering the second pipeline or the main pipeline through the gas joint can be gathered in the dust containing groove under the action of the dust blocking surface, and then the dust is collected to avoid the dust moving to the air relief valve under the action of the subsequent airflow, thereby greatly improving the dust blocking effect, further avoiding the occurrence of dust blocking the air relief valve, and further extending the service life of the sphygmomanometer equipped with the pipeline assembly in the present application.

[0021] Optionally, the air relief valve has an air inlet portion extending into the first pipe opening, and the peripheral side of the air inlet portion is spaced apart from the inner wall of the first pipe opening to form a dust storage groove for accommodating dust.

[0022] By adopting the above technical solution, a dust accumulation groove is formed between the peripheral side of the air inlet part and the inner wall of the first pipe opening, so that the dust moving to the air relief valve can enter the dust accumulation groove under the action of the airflow, so as to avoid the blockage of the air inlet part by dust, thereby greatly improving the difficulty of the air relief valve being blocked, so as to further ensure the normal operation of the air relief valve.

[0023] Optionally, the air relief valve has a connection portion connected to the first pipe opening, and a filter is arranged inside the connection portion to filter the gas entering the air relief valve through the main pipe.

[0024] By adopting the above technical solution, if dust moves to the air relief valve under the action of air flow, the filter element can filter the dust in the air flow to further avoid the situation where dust blocks the air relief valve, thereby greatly increasing the difficulty of the air relief valve being blocked by dust, and further ensuring the normal operation of the air relief valve.

[0025] Optionally, the main pipeline also has a third pipe opening and a fourth pipe opening, the first pipe opening and the fourth pipe opening are respectively located on both sides of the third pipe opening, and the pipeline assembly also includes an air pump arranged at the third pipe opening and a solenoid valve arranged at the fourth pipe opening.

[0026] By adopting the above technical solution, since the first pipe opening and the fourth pipe opening are respectively located on both sides of the third pipe opening, and the third pipe opening is connected to an air pump, and the fourth pipe opening is connected to a solenoid valve, the air release valve and the solenoid valve are respectively located on opposite sides of the air pump, so that the solenoid valve can quickly deflate and guide the dust to one side of the solenoid valve, thereby increasing the distance from the dust to the air release valve, thereby further avoiding the situation where the air release valve is blocked.

[0027] Optionally, the second pipe opening is arranged between the third pipe opening and the fourth pipe opening.

[0028] By adopting the above technical solution, since the second pipe opening is arranged between the third pipe opening and the fourth pipe opening, the path for dust entering through the air joint to move to the air relief valve is increased, so as to further avoid the blockage of the air relief valve, and further ensure the normal operation of the sphygmomanometer equipped with the pipeline assembly in the present application; at the same time, the distribution of the air pump, air relief valve, solenoid valve and air joint in the sphygmomanometer housing is more reasonable, so as to optimize the internal design of the sphygmomanometer.

[0029] Optionally, the main pipe route extends upwardly and obliquely from the third pipe opening to the fourth pipe opening.

[0030] By adopting the above technical solution, since the main pipe is extended upward from the third pipe opening to the fourth pipe opening, so that the fourth pipe opening is located above the third pipe opening, the distribution of the air pump and the solenoid valve inside the sphygmomanometer housing is more reasonable, thereby improving the space utilization of the sphygmomanometer and facilitating the miniaturization design of the sphygmomanometer.

[0031] The present application also discloses a sphygmomanometer, comprising a shell, a cuff and the above-mentioned pipeline assembly, wherein the pipeline assembly is arranged inside the shell, and the cuff is connected to the air joint through an air pipe.

[0032] By adopting the above-mentioned technical solution, the sphygmomanometer in the present application uses the above-mentioned pipeline assembly, thereby avoiding the situation where dust flows to the air release valve and causes the air release valve to be blocked, thereby ensuring the normal operation of the sphygmomanometer. At the same time, it reduces the failure rate of the sphygmomanometer, improves the product quality of the sphygmomanometer, and effectively extends the service life of the sphygmomanometer, greatly improving the user experience.

[0033] Optionally, the shell includes a bottom shell and an upper cover cooperating with the bottom shell, the upper cover is provided with a display screen and support ribs for supporting the display screen, the bottom shell is provided with lower rib positions, and the support ribs cooperate with the lower rib positions to clamp and fix the air pump.

[0034] By adopting the above technical solution, since the support ribs can not only support the display screen, but also cooperate with the lower ribs to fix the air pump, the flexibility of the support ribs is increased, avoiding the need to set other components separately in the sphygmomanometer to fix the display screen or the air pump, thereby reducing the structural complexity of the sphygmomanometer and reducing the production cost of the sphygmomanometer. At the same time, the lower ribs can also support the air pump so that there is a set distance between the air pump and the inner wall of the bottom shell, so as to increase the difficulty of dust inside the bottom shell being sucked into the air pump, thereby further avoiding the occurrence of the situation where the air release valve is blocked by dust, so as to further ensure the normal operation of the sphygmomanometer.

[0035] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0036] 1. The pipeline assembly in the present application includes a main pipeline having a first pipeline opening and a second pipeline opening, an air relief valve arranged at the first pipeline opening, an air joint arranged at the second pipeline opening, and an air joint arranged at the inner wall of the main pipeline and located at the front side of the air inlet direction of the air relief valve. When the air relief valve is deflated, the dust blocking structure collects and blocks the dust in the gas flowing to the air relief valve to prevent the dust from flowing to the air relief valve and causing the air relief valve to be blocked, thereby ensuring the normal exhaust of the air relief valve to ensure the normal operation of the blood pressure monitor equipped with the pipeline assembly in the present application, while reducing the failure rate of the blood pressure monitor, improving the product quality of the blood pressure monitor, and effectively extending the service life of the blood pressure monitor, greatly improving the user experience.

[0037] 2. The main pipeline in the present application is provided with a first pipeline extending upward, and the first pipe opening is arranged at the top of the first pipeline, thereby greatly increasing the difficulty of dust moving to the air release valve. The dust blocking structure includes a first dust blocking portion protruding from the inner wall of the first pipeline, so that the first dust blocking portion can block the dust moving upward, so as to further increase the difficulty of dust moving to the air release valve, thereby greatly reducing the risk of the air release valve being blocked by dust, and further ensuring the normal operation of the sphygmomanometer.

[0038] 3. The main pipeline in the present application is provided with a second pipeline extending upward, and the second pipe opening is arranged at the top of the second pipeline, thereby increasing the movement path of dust entering the main pipeline through the gas joint and toward the location of the air relief valve, so as to greatly increase the difficulty of dust moving to the air relief valve, and the dust blocking structure also includes a second dust blocking portion protruding from the inner wall of the second pipeline and the inner wall of the main pipeline, so that the second dust blocking portion blocks the dust entering the main pipeline through the gas joint and moving toward the air relief valve, so as to further increase the dust blocking effect, thereby further reducing the occurrence of blockage of the air relief valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0040] Figure 1 A cross-sectional view of the main pipeline in one embodiment of the present application;

[0041] Figure 2 for Figure 1 A magnified view of the middle A area;

[0042] Figure 3 This is a schematic structural diagram of the main pipeline described in one implementation mode of the present application;

[0043] Figure 4 This is a schematic diagram of the connection structure between the pipeline assembly and the cuff in one implementation manner of the present application;

[0044] Figure 5 This is an exploded schematic diagram of the pipeline assembly and the cuff in one implementation manner of the present application;

[0045] Figure 6 This is a schematic structural diagram of the air release valve described in one embodiment of the present application;

[0046] Figure 7 This is an exploded schematic diagram of the sphygmomanometer described in one embodiment of the present application;

[0047] Figure 8 This is a cross-sectional view of the sphygmomanometer according to one embodiment of the present application.

[0048] Reference numerals:

[0049] 1. Main pipe; 11. Fifth pipe opening; 111. Pipe plug;

[0050] 2. Dust blocking structure; 21. First dust blocking portion; 22. Second dust blocking portion; 221. Dust containing trough;

[0051] 3. First pipeline; 31. First pipe opening; 311. Air release valve; 312. Air release valve body; 313. Air inlet; 314. Connecting part; 315. Dust storage tank;

[0052] 4. Second pipeline; 41. Second pipe opening; 411. Gas joint;

[0053] 5. The third pipeline; 51. The third pipe opening; 511. The air pump;

[0054] 6. Fourth pipeline; 61. Fourth pipe opening; 611. Solenoid valve;

[0055] 7. Shell; 71. Bottom shell; 711. Lower rib; 72. Upper cover; 721. Display screen; 722. Support rib;

[0056] 8. Cuff; 81. Trachea. DETAILED DESCRIPTION

[0057] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0058] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0059] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0060] In this application, 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, an electrical connection, or a communication; 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 this application can be understood according to specific circumstances.

[0061] In the present application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0062] Reference Figures 1 to 6 , discloses a pipeline assembly, including a main pipeline 1, a relief valve 311, a gas joint 411 and a dust blocking structure 2, wherein the main pipeline 1 has a first pipe opening 31 and a second pipe opening 41, the relief valve 311 is arranged at the first pipe opening 31, the gas joint 411 is arranged at the second pipe opening 41, and the dust blocking structure 2 is arranged on the inner wall of the main pipeline 1 and is located on the front side of the air inlet direction of the relief valve 311, so that when the relief valve 311 is deflated, the dust blocking structure 2 collects and blocks dust in the gas flowing to the relief valve 311.

[0063] It should be explained that the air inlet direction of the air release valve 311 refers to the direction in which the airflow in the main line 1 flows to the air release valve 311, that is, the dust blocking structure 2 is located on the front side of the air inlet direction of the air release valve 311, which means that the dust blocking structure 2 is located on the side of the air release valve 311 that caters to the airflow in the main line 1 flowing to its own position.

[0064] Since the pipeline assembly in the present application is provided with a dust blocking structure 2 and is located in front of the air inlet direction of the air relief valve 311, when the air relief valve 311 is deflated, the dust blocking structure 2 blocks the dust entering the main pipeline 1 through the air joint 411 to prevent dust from flowing to the air relief valve 311 and causing blockage of the air relief valve 311, thereby ensuring the normal exhaust of the air relief valve 311 to ensure the normal operation of the blood pressure monitor equipped with the pipeline assembly in the present application, while reducing the failure rate of the blood pressure monitor, improving the product quality of the blood pressure monitor, and effectively extending the service life of the blood pressure monitor, greatly improving the user experience.

[0065] The present application does not specifically limit the dust shielding structure 2. Preferably, refer to Figure 1 and Figure 3 The main pipeline 1 is provided with a first pipeline 3 extending upward, the first pipe opening 31 is provided at the top of the first pipeline 3 , and the dust blocking structure 2 includes a first dust blocking portion 21 protruding from the inner wall of the first pipeline 3 .

[0066] Since the first pipe opening 31 is arranged at the top of the first pipeline 3 and the first pipeline 3 extends upward, the difficulty of dust moving to the air relief valve 311 is greatly increased. At the same time, the first dust block 21 protrudes from the inner wall of the first pipeline 3, so that the first dust block 21 can block the dust moving upward, thereby further increasing the difficulty of dust moving to the air relief valve 311, thereby greatly reducing the risk of the air relief valve 311 being blocked by dust, and further ensuring the normal operation of the sphygmomanometer equipped with the pipeline assembly in this application.

[0067] Better, refer to Figure 1 and Figure 3 The first pipeline 3 is extended upward in the vertical direction to reasonably utilize the vertical space of the sphygmomanometer housing 7 and reduce the size of the sphygmomanometer. Of course, in other embodiments, the first pipeline 3 can also be extended upward in an inclined manner.

[0068] The present application does not specifically limit the number of the first dust blocking portions 21. Preferably, refer to Figure 1 and Figure 3 At least two first dust blocking portions 21 are arranged at intervals along the extending direction of the first pipeline 3 .

[0069] Since the first dust block 21 protrudes from the inner wall of the first pipeline 3, the airflow will be accelerated when it reaches the first dust block 21, and at least two first dust blocks 21 are arranged at intervals along the extension direction of the first pipeline 3, so that the airflow will be decelerated when it flows between two adjacent first dust blocks 21, so that dust adheres to the inner wall of the first pipeline 3, so as to further increase the difficulty of dust moving to the air release valve 311, thereby further reducing the risk of the air release valve 311 being blocked, so as to ensure the normal operation of the blood pressure monitor equipped with the pipeline assembly in this application, thereby improving the product quality of the blood pressure monitor and the user experience.

[0070] The present application does not specifically limit the structure of the first dust shield 21. Preferably, refer to Figure 1 The first dust block 21 is an annular structure extending along the inner wall of the first pipeline 3 to increase the dust blocking effect, and the cross section of the first dust block 21 is formed into a triangle to reduce the difficulty of forming the first pipeline 3, thereby reducing the production cost of the pipeline assembly, and at the same time, the wall surface of the first dust block 21 can guide the airflow to ensure the smoothness of the airflow, avoid the situation where the airflow flows in the first pipeline 3 and generates noise, thereby ensuring the user's experience. In other embodiments, the first dust block 21 can also be a structure of other shapes extending along the inner wall of the first pipeline 3.

[0071] The present application does not specifically limit the connection method between the first dust shield 21 and the first pipeline 3. Preferably, the first dust shield 21 and the first pipeline 3 are integrally formed to increase the stability of the first dust shield 21, thereby ensuring the dust blocking effect, while reducing the assembly cost of the pipeline assembly and improving the production efficiency of the pipeline assembly. In other embodiments, the first dust shield 21 can also be installed in the first pipeline 3 by interference fit or fastener fixation.

[0072] The present application does not specifically limit the connection method between the first pipeline 3 and the main pipeline 1. Preferably, the first pipeline 3 and the main pipeline 1 are integrally formed to reduce the number of parts required to be assembled when assembling the pipeline assembly, so as to improve the production efficiency of the pipeline assembly. In other embodiments, the first pipeline 3 can also be connected to the main pipeline 1 by gluing or plugging.

[0073] Further, see Figure 1 , Figure 2 and Figure 3 The main pipeline 1 is provided with a second pipeline 4 extending upward, the second pipe opening 41 is provided at the top of the second pipeline 4, and the dust shielding structure 2 also includes a second dust shielding portion 22 protruding from the inner wall of the second pipeline 4 and the inner wall of the main pipeline 1.

[0074] Since the second pipe opening 41 is arranged at the top of the second pipeline 4 and the second pipeline 4 is extended upward, the movement path of dust entering the main pipeline 1 through the gas joint 411 and moving toward the position of the air relief valve 311 is increased, thereby greatly increasing the difficulty of dust moving to the air relief valve 311, and the second dust blocking portion 22 is protruded from the inner wall of the main pipeline 1, so that the second dust blocking portion 22 blocks the dust entering the main pipeline 1 through the gas joint 411 and moving toward the air relief valve 311, so as to further increase the dust blocking effect, thereby further reducing the occurrence of the air relief valve 311 being blocked.

[0075] Better, refer to Figure 1 and Figure 3 The second pipeline 4 is extended upward in the vertical direction to reasonably utilize the vertical space of the sphygmomanometer housing 7 and reduce the size of the sphygmomanometer. Of course, in other embodiments, the second pipeline 4 can also be extended upward in an inclined manner.

[0076] The present application does not specifically limit the structure of the second dust shield 22. Preferably, refer to Figure 1 and Figure 2 A dust shielding surface is provided on one side of each second dust shielding portion 22 close to the gas joint 411, and a dust containing groove 221 is formed between each dust shielding surface and the corresponding inner wall of the second pipeline 4 or the inner wall of the main pipeline 1, so that the dust entering the second pipeline 4 and the main pipeline 1 through the gas joint 411 is blocked by the dust shielding surface and gathered in the dust containing groove 221.

[0077] That is, the second dust block 22 is an annular structure extending circumferentially along the inner wall of the second pipeline 4 and the main pipeline 1, and the end surface of the second dust block 22 close to the second pipe opening 41 is inclined toward the second pipe opening 41 to form a dust block surface.

[0078] Since the second dust shield portion 22 is provided with a dust shield surface on the side close to the gas joint 411 and a dust collecting groove 221 is formed between the second dust shield portion 22 and the inner wall of the second pipeline 4 or the inner wall of the main pipeline 1, the dust entering the second pipeline 4 or the main pipeline 1 through the gas joint 411 can be gathered in the dust collecting groove 221 under the action of the dust shield surface, and the dust is collected to avoid the dust from moving to the air relief valve 311 under the action of the subsequent airflow, thereby greatly improving the dust blocking effect, further avoiding the occurrence of dust blocking the air relief valve 311, and further extending the service life of the sphygmomanometer equipped with the pipeline assembly in the present application.

[0079] In other embodiments, the second dust blocking portion 22 may also have the same structure as the first dust blocking portion 21 .

[0080] The present application does not make any specific limitation on the connection method between the second dust shield 22 and the second pipeline 4 and the main pipeline 1. Preferably, the second dust shield 22 is integrally formed with the second pipeline 4 and the main pipeline 1 to increase the stability of the second dust shield 22, thereby improving the dust blocking and collection effect, and reducing the assembly cost of the pipeline component.

[0081] Better, refer to Figure 1 and Figure 2 A plurality of second dust blocking portions 22 are arranged in the main pipeline 1 along the extension direction of the main pipeline 1 to increase the dust blocking and collection effect. At the same time, the airflow is accelerated and decelerated multiple times in the main pipeline 1 so that more dust adheres to the inner wall of the main pipeline 1, thereby further avoiding the occurrence of blockage of the air relief valve 311.

[0082] The present application does not specifically limit the connection method between the second pipeline 4 and the main pipeline 1. Preferably, the second pipeline 4 and the main pipeline 1 are integrally formed to reduce the number of parts required to be assembled when assembling the pipeline assembly, thereby improving the production efficiency of the pipeline assembly. In other embodiments, the second pipeline 4 can also be connected to the main pipeline 1 by gluing or plugging.

[0083] In other embodiments, the second dust block 22 or the first dust block 21 can be eliminated, that is, the dust-proof structure only includes the first dust block 21 or the second dust block 22; or, the dust block structure 2 includes a filter screen provided in the main pipe 1 and protruding toward the side where the second pipe port 41 is located, and the filter screen blocks and filters the dust. At the same time, since the filter screen protrudes toward the second pipe port 41, a groove structure is formed between the surrounding side of the filter screen and the main pipe 1 to collect dust, thereby avoiding the situation where the air release valve 311 is blocked.

[0084] The present application does not specifically limit the structure of the air release valve 311. Preferably, refer to Figure 1 , Figure 4 , Figure 5 and Figure 6 The air release valve 311 has an air inlet portion 313 extending into the first pipe opening 31 , and the circumference of the air inlet portion 313 is spaced apart from the inner wall of the first pipe opening 31 to form a dust storage groove 315 for accommodating dust.

[0085] That is to say, the air release valve 311 includes an air release valve body 312 and an air inlet portion 313 arranged at the bottom of the air release valve body 312. The air inlet portion 313 has an air inlet hole so that the gas enters the air release valve body 312 through the air inlet hole. The diameter of the air inlet portion 313 is smaller than the diameter of the mouth of the first pipe mouth 31. There is a gap between the peripheral side of the air inlet portion 313 and the mouth wall of the first pipe mouth 31 to form a dust accumulation groove 315, so that the dust moving to the air release valve 311 can enter the dust accumulation groove 315 under the action of the air flow, so as to avoid the situation where the dust blocks the air inlet portion 313, thereby greatly increasing the difficulty of the air release valve 311 being blocked, so as to further ensure the normal operation of the air release valve 311.

[0086] The present application does not specifically limit the structure of the air intake portion 313. Preferably, refer to Figure 1 and Figure 6 The air inlet 313 is a columnar structure with a circular cross-section, so that the gap between the circumference of the air inlet 313 and the inner wall of the first pipeline 3 is consistent, so as to ensure the dust collection effect and further avoid the situation where dust blocks the air relief valve body 312. In other embodiments, the air inlet 313 can also be a structure of other shapes, as long as there is a gap between the circumference of the air inlet 313 and the inner wall of the first pipeline 3.

[0087] Further, see Figure 1 and Figure 6 The air release valve 311 has a connecting portion 314 connected to the first pipe opening 31 , and a filter is disposed inside the connecting portion 314 to filter the gas entering the air release valve 311 through the main pipe 1 .

[0088] Specifically, the connecting portion 314 is disposed at the bottom of the air relief valve body 312 and is located between the air inlet portion 313 and the air relief valve body 312. If dust moves to the air relief valve 311 under the action of the air flow, the filter element can filter the dust in the air flow to further avoid the situation where dust blocks the air relief valve 311, thereby greatly increasing the difficulty of the air relief valve 311 being blocked by dust, and further ensuring the normal operation of the air relief valve 311.

[0089] The present application does not specifically limit the structure of the filter element. Preferably, the interior of the connection portion 314 is hollow, and the filter element is a filter cotton disposed inside the connection portion 314 to improve the filtering and blocking effect of dust, so as to further prevent the air release valve body 312 from being blocked by dust. In other embodiments, the filter element can also be a filter net disposed in the connection portion 314.

[0090] The present application does not specifically limit the structure of the connection portion 314. Preferably, the connection portion 314 is a columnar structure with a circular cross-sectional shape, and the diameter of the connection portion 314 is larger than the diameter of the air inlet portion 313. The connection portion 314 is interference-fitted with the pipe opening of the first pipeline 3 to achieve the connection between the air release valve 311 and the first pipeline 3. In other embodiments, the connection portion 314 can also be a structure of other shapes, and the connection portion 314 can also be connected to the first pipeline 3 in other ways, for example, the connection portion 314 abuts against the first pipe opening 31, and is fixedly connected to the first pipeline 3 by fasteners.

[0091] In other embodiments, the connection portion 314 or the air inlet portion 313 may be omitted.

[0092] In a preferred embodiment, referring to Figure 3 , Figure 4 and Figure 5 The main pipe 1 also has a third pipe opening 51 and a fourth pipe opening 61. The first pipe opening 31 and the fourth pipe opening 61 are respectively located on both sides of the third pipe opening 51. The pipe assembly also includes an air pump 511 arranged at the third pipe opening 51 and a solenoid valve 611 arranged at the fourth pipe opening 61.

[0093] Specifically, the main pipeline 1 is provided with a third pipeline 5 and a fourth pipeline 6 extending laterally, and a third pipe opening 51 is formed at one end of the third pipeline 5 away from the main pipeline 1, and a fourth pipe opening 61 is formed at one end of the fourth pipeline 6 away from the main pipeline 1, and the third pipeline 5 is located between the fourth pipeline 6 and the first pipeline 3, so that the air release valve 311 and the solenoid valve 611 are respectively located on two opposite sides of the air pump 511, so that the solenoid valve 611 can quickly deflate and guide the dust to one side of the solenoid valve 611, so as to increase the distance from the dust to the air release valve 311, thereby further avoiding the situation where the air release valve 311 is blocked.

[0094] At the same time, the setting of the third pipeline 5 and the fourth pipeline 6 avoids the situation where the air pump 511 and the solenoid valve 611 are connected to the main pipeline 1 and affect the flow area of ​​the main pipeline 1, thereby ensuring the flow area of ​​the main pipeline 1 and further ensuring the smoothness of the airflow in the main pipeline 1.

[0095] The present application does not specifically limit the connection method between the third pipeline 5 and the fourth pipeline 6 and the main pipeline 1. Preferably, the third pipeline 5 and the fourth pipeline 6 are integrally formed with the main pipeline 1 to reduce the number of parts required to be assembled when assembling the pipeline assembly, so as to improve the production efficiency of the pipeline assembly. In other embodiments, the third pipeline 5 and the fourth pipeline 6 can also be connected to the main pipeline 1 by gluing or plugging.

[0096] Further, see Figure 3 , Figure 4 and Figure 5 The second pipe opening 41 is arranged between the third pipe opening 51 and the fourth pipe opening 61, that is, the first pipe opening 31, the third pipe opening 51, the second pipe opening 41 and the fourth pipe opening 61 are arranged in sequence along the extension direction of the main pipeline 1, thereby increasing the path for the dust entering through the air joint 411 to move to the air relief valve 311, so as to further avoid the blockage of the air relief valve 311, and further ensure the normal operation of the sphygmomanometer equipped with the pipeline assembly in the present application; at the same time, the distribution of the air pump 511, the air relief valve 311, the solenoid valve 611 and the air joint 411 in the housing 7 of the sphygmomanometer is more reasonable, so as to optimize the internal design of the sphygmomanometer.

[0097] Furthermore, the main line 1 is arranged to extend upwardly obliquely from the third pipe opening 51 to the fourth pipe opening 61 so that the fourth pipe opening 61 is located above the third pipe opening 51, thereby making the distribution of the air pump 511 and the solenoid valve 611 inside the body 7 of the sphygmomanometer shell more reasonable, thereby improving the space utilization of the sphygmomanometer and facilitating the miniaturized design of the sphygmomanometer.

[0098] Better, refer to Figure 3 , Figure 4 and Figure 5 The main pipe 1 is bent so that the main pipe 1 extends upward from the third pipe opening 51 to the fourth pipe opening 61, thereby making the main pipe 1 avoid other components inside the sphygmomanometer to facilitate the assembly of the pipe assembly. In other embodiments, the main pipe 1 can also be a straight pipe structure arranged obliquely.

[0099] Further, refer to Figure 3 , Figure 4 and Figure 5One end of the main pipe 1 has a fifth pipe opening 11 to reduce the difficulty of forming the main pipe 1 and improve the production efficiency of the main pipe 1, and the fifth pipe opening 11 is sealed and connected with a pipe plug 111 to seal the fifth pipe opening 11.

[0100] The present application does not specifically limit the material of the main pipe 1. Preferably, the main pipe 1 is made of silicone material to increase the dust absorption capacity of the pipe assembly, thereby further preventing dust from clogging the air release valve 311. In other embodiments, the main pipe 1 can also be made of plastic material.

[0101] Reference Figure 7 and Figure 8 The present application also discloses a sphygmomanometer, which includes a housing 7, a cuff 8 and the above-mentioned pipeline assembly, wherein the pipeline assembly is arranged inside the housing 7, and the cuff 8 is connected to the air connector 411 through an air pipe 81.

[0102] Since the sphygmomanometer in the present application uses the above-mentioned pipeline assembly, dust is prevented from flowing to the air release valve 311 and causing blockage of the air release valve 311, thereby ensuring the normal operation of the sphygmomanometer. At the same time, the failure rate of the sphygmomanometer is reduced, the product quality of the sphygmomanometer is improved, and the service life of the sphygmomanometer is effectively extended, thereby greatly improving the user experience.

[0103] In a preferred embodiment, referring to Figure 7 and Figure 8 The shell 7 includes a bottom shell 71 and an upper cover 72 matched with the bottom shell 71. The upper cover 72 is provided with a display screen 721 and support ribs 722 for supporting the display screen 721. The bottom shell 71 is provided with a lower rib position 711. The support rib 722 cooperates with the lower rib position 711 to clamp and fix the air pump 511.

[0104] Since the support ribs 722 can not only support the display screen 721, but also cooperate with the lower rib position 711 to fix the air pump 511, the flexibility of the support ribs 722 is increased, avoiding the need to set other components separately in the sphygmomanometer to fix the display screen 721 or the air pump 511, thereby reducing the structural complexity of the sphygmomanometer and reducing the production cost of the sphygmomanometer. At the same time, the lower rib position 711 can also support the air pump 511, so that there is a set distance between the air pump 511 and the inner wall of the bottom shell 71, so as to increase the difficulty of the dust inside the bottom shell 71 being sucked into the air pump 511, thereby further avoiding the occurrence of the situation where the air release valve 311 is blocked by dust, so as to further ensure the normal operation of the sphygmomanometer.

[0105] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0106] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0107] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A pipeline assembly, characterized in that: include: A main pipe (1) having a first pipe opening (31) and a second pipe opening (41); a gas relief valve (311), which is arranged at the first pipe opening (31); A gas joint (411), which is arranged at the second pipe opening (41); A dust blocking structure (2) is arranged on the inner wall of the main pipeline (1) and is located in front of the air intake direction of the air relief valve (311), so that when the air relief valve (311) is deflated, the dust blocking structure (2) collects and blocks dust in the gas flowing toward the air relief valve (311).

2. A pipeline assembly according to claim 1, characterized in that: The main pipeline (1) is provided with a first pipeline (3) extending upward, the first pipe opening (31) is arranged at the top of the first pipeline (3), and the dust blocking structure (2) comprises a first dust blocking portion (21) protruding from the inner wall of the first pipeline (3).

3. A pipeline assembly according to claim 2, characterized in that: At least two of the first dust shielding portions (21) are arranged at intervals along the extension direction of the first pipeline (3).

4. A pipeline assembly according to claim 1, characterized in that: The main pipeline (1) is provided with a second pipeline (4) extending upward, the second pipe opening (41) is arranged at the top of the second pipeline (4), and the dust blocking structure (2) also includes a second dust blocking portion (22) protruding from the inner wall of the second pipeline (4) and the inner wall of the main pipeline (1).

5. A pipeline assembly according to claim 4, characterized in that: Each of the second dust shielding parts (22) is provided with a dust shielding surface on one side close to the gas joint (411), and a dust containing groove (221) is formed between each of the dust shielding surfaces and the corresponding inner wall of the second pipeline (4) or the inner wall of the main pipeline (1), so that dust entering the second pipeline (4) and the main pipeline (1) through the gas joint (411) is blocked by the dust shielding surface and collected in the dust containing groove (221).

6. A pipeline assembly according to claim 1, characterized in that: The air release valve (311) has an air inlet portion (313) extending into the first pipe opening (31), and the peripheral side of the air inlet portion (313) is spaced apart from the inner wall of the first pipe opening (31) to form a dust storage groove (315) for accommodating dust.

7. A pipeline assembly according to claim 1, characterized in that: The air release valve (311) has a connection portion (314) connected to the first pipe opening (31), and a filter is provided inside the connection portion (314) to filter the gas entering the air release valve (311) through the main pipe (1).

8. A pipeline assembly according to claim 1, characterized in that: The main pipe (1) further comprises a third pipe opening (51) and a fourth pipe opening (61), wherein the first pipe opening (31) and the fourth pipe opening (61) are respectively located on both sides of the third pipe opening (51), and the pipe assembly further comprises an air pump (511) arranged at the third pipe opening (51) and a solenoid valve (611) arranged at the fourth pipe opening (61).

9. A pipeline assembly according to claim 8, characterized in that: The second pipe opening (41) is arranged between the third pipe opening (51) and the fourth pipe opening (61).

10. A pipeline assembly according to claim 8, characterized in that: The main pipe (1) extends upwardly and obliquely from the third pipe opening (51) to the fourth pipe opening (61).

11. A sphygmomanometer, characterized in that: It comprises a shell (7), a cuff (8) and a pipeline assembly as described in any one of claims 1 to 10, wherein the pipeline assembly is arranged inside the shell (7), and the cuff (8) is connected to the air joint (411) through an air pipe (81).

12. A sphygmomanometer according to claim 11, characterized in that: The housing (7) comprises a bottom shell (71) and an upper cover (72) matched with the bottom shell (71); the upper cover (72) is provided with a display screen (721) and support ribs (722) for supporting the display screen (721); the bottom shell (71) is provided with a lower rib position (711); the support ribs (722) cooperate with the lower rib position (711) to achieve clamping and fixing of the air pump (511).

Images