Pipeline connection structure and sphygmomanometer

Abstract

This invention relates to the field of medical device technology, and discloses a tubing connection structure and a blood pressure monitor. The tubing connection structure includes: a tubing with a first end having an anti-detachment portion protruding from the tubing wall; a tubing connector having an interface adapted to communicate with the lumen of the tubing; and a pressing member having a first connecting portion and a second connecting portion adapted to be detachably connected to the first connecting portion. The pressing member is adapted to constrain the anti-detachment portion of the tubing between the pressing member and the tubing connector when the first connecting portion and the second connecting portion are connected. The tubing connection structure of this invention can press the anti-detachment portion of the tubing onto the tubing connector through the pressing member, and connect the lumen of the tubing to the interface on the tubing connector, making the connection between the tubing and the tubing connector more reliable. This overcomes the defect in the prior art where the tubing is easily separated from the connector, and avoids a decrease in airtightness between the tubing and the tubing connector after reconnection.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a tubing connection structure and a blood pressure monitor. Background Technology

[0002] Hypertension is one of the most common internal medicine diseases, with a wide distribution, affecting people from the elderly to young adults. Hypertensive patients need to closely monitor their health and gradually manage the disease through diet and lifestyle changes. To better monitor blood pressure fluctuations, blood pressure monitors were developed. In this technology, a blood pressure monitor includes a cuff and a tubing detachably connected to the cuff. A tubing connector is formed on the cuff, and the tubing is fixed to the cuff through an interference fit with the connector, creating a sealed connection.

[0003] However, during the use of a blood pressure monitor, the trachea is easily separated from the trachea connector due to external force. Moreover, because the trachea is tightly fitted with the trachea connector for a long time, it often becomes curled and deformed. Even if the user reconnects the trachea to the trachea connector, the trachea and the trachea connector are no longer tightly fitted, and the connection between the trachea and the connector becomes loose, reducing the airtightness and thus reducing the accuracy of the blood pressure monitor measurement. Summary of the Invention

[0004] In view of this, the present invention provides a pipe connection structure and a blood pressure monitor to solve the problem in the pipe connection structure of the related art that the pipe fittings are easily separated from the pipe joint by external force, and the airtightness is reduced after reconnection, which reduces the accuracy of the blood pressure monitor.

[0005] In a first aspect, the present invention provides a pipeline connection structure, comprising:

[0006] The pipe fitting has a first end with an anti-detachment part protruding from the pipe wall;

[0007] Pipe connector, having an interface formed on it suitable for communicating with the lumen of a pipe;

[0008] The pressure member has a first connecting portion formed thereon, and the pipeline connector has a second connecting portion formed thereon, which is adapted to be detachably connected to the first connecting portion. The pressure member is adapted to constrain the anti-detachment portion of the pipeline connector between the pressure member and the pipeline connector when the first connecting portion and the second connecting portion are connected.

[0009] Beneficial effects: The pipe connection structure of the present invention can press the anti-detachment part of the pipe fitting onto the pipe connector through the pressing member, and connect the cavity of the pipe fitting with the interface on the pipe connector. By adding a first connection part and a second connection part to prevent the pipe fitting from detaching from the pipe connector, the connection between the pipe fitting and the pipe connector can be made more reliable. This overcomes the defects of the prior art where the interference fit between the pipe fitting and the pipe joint results in low connection strength and easy separation from the pipe joint under external force, and avoids the reduction of airtightness between the pipe fitting and the pipe connector after reconnection.

[0010] In addition, since the pipe fitting can be pressed tightly onto the pipe connector by the pressure member, even if the interference between the pipe fitting and the pipe connector is set to be small, it is not easy for the pipe fitting and the pipe connector to separate. By reducing the interference between the pipe fitting and the pipe connector, it is possible to prevent the pipe from curling and deforming after separating from the pipe connector, thereby preventing the airtightness of the reconnection structure from being reduced.

[0011] Therefore, the pipe connection structure of the present invention can overcome the defects in the pipe connection structure of the related art, in which the pipe fittings are easily separated from the pipe joint by external force, and the airtightness is reduced after reconnection, resulting in a decrease in the accuracy of the blood pressure monitor.

[0012] In one alternative embodiment, the first end of the pressure member is hinged to the pipeline connector, and the first connection portion is disposed on the second end of the pressure member.

[0013] In one optional embodiment, the pressing member includes a first pressing arm and a second pressing arm spaced apart along the rotation axis of the pressing member. The first ends of the first pressing arm and the second pressing arm are hinged to the pipe connector, and a clearance opening is formed between the first pressing arm and the second pressing arm for the second end of the pipe connector to pass through.

[0014] Beneficial effects:

[0015] This allows the anti-detachment part of the pipe fitting to be inserted between the pressure member and the pipe connector when the first connecting part is separated from the second connecting part. The second end of the pipe fitting can pass through the pressure member through the relief opening. Then the first connecting part and the second connecting part are connected, and the first pressure arm and the second pressure arm can be pressed tightly on the anti-detachment part of the pipe fitting.

[0016] In one alternative embodiment, the second connection includes a snap-fit ​​formed on the pipe connector, and the first connection is a connecting rod connected between the second ends of the first pressure arm and the second pressure arm, the snap-fit ​​being adapted to pass through the clearance opening and engage with the first connection.

[0017] In one alternative embodiment, the first connecting portion is adapted to have a guide bevel formed on the surface that engages with the snap fastener, the snap fastener including a straight section formed on the pipe connector and a snap head connected to the end of the straight section away from the pipe connector, the first connecting portion being adapted to snap between the straight section and the snap head.

[0018] Beneficial effects:

[0019] During the engagement of the first connecting part with the buckle, the guide ramp facilitates the buckle head to abut against it, and slides along the surface of the buckle head as the pressing member is fastened to the pipe connector, so as to compress the buckle head to deform in a direction away from the first connecting member, until the guide ramp crosses the buckle head, and the first connecting member is locked between the straight section and the buckle head, so as to engage the pressing member with the pipe connector.

[0020] When disassembling the pipe fitting, the user can pull the buckle to separate it from the first connector, and then pass the second end of the pipe fitting through the clearance opening, so that the pipe fitting can be removed between the pressure member and the pipe connector.

[0021] In one optional embodiment, a first anti-crack groove and a second anti-crack groove are respectively provided on both sides of the buckle. When the first connecting part is connected to the second connecting part, the second ends of the first pressure arm and the second pressure arm are respectively located in the first anti-crack groove and the second anti-crack groove.

[0022] Beneficial effects:

[0023] After setting the first and second anti-crack grooves, the length of the buckle can be increased, which allows the buckle to deform more when it deforms, thus preventing the buckle from breaking during the contact and engagement process with the first connector.

[0024] The first and second anti-cracking grooves are preferably sloped at the corners of the pipe connectors where they are adapted to engage with the pressure-bearing members. When the connecting rod is engaged with the buckle, the first and second anti-cracking grooves are adapted to make surface contact with the lower surfaces of the first and second pressure arms, respectively. This increases the contact area between the first and second pressure arms and the pipe connectors, preventing the first and second pressure arms from being damaged by the corners of the pipe connectors.

[0025] Meanwhile, the first and second anti-cracking grooves can also limit the first and second pressure arms in a accommodating manner to prevent the first and second pressure arms from shifting and causing the pipe fittings to slip off.

[0026] In one optional embodiment, the pipeline connection structure further includes:

[0027] A fixed protrusion is formed on one of the anti-detachment part and the pipe connector;

[0028] A fixing recess, formed on the other of the anti-detachment part and the pipe connector, is adapted to receive and limit the fixing protrusion.

[0029] In one alternative embodiment, a pipe fitting is formed on the pipe connector, an interface is formed inside the pipe fitting, the pipe fitting is adapted to be sleeved on the pipe fitting, and the pipe connection structure further includes a sealing ring sleeved on the pipe fitting and clamped between the pipe fitting and the pipe fitting.

[0030] Beneficial effects:

[0031] By inserting pipe fittings into pipe joints and adding a sealing ring between the fittings and pipe connectors, the airtightness between them can be improved. Connecting the fittings and pipe connectors with a sealing ring ensures a proper connection while preventing excessive interference fit between the fittings and pipe joints, which could cause the fittings to curl and deform due to prolonged interference fit after separation.

[0032] In one optional embodiment, the pressing member further includes a first protrusion and a second protrusion respectively formed on the side of the first pressing arm and the second pressing arm near the pipe connector, the first protrusion and the second protrusion respectively abutting against the anti-detachment part on both sides of the pipe wall of the pipe.

[0033] In one alternative embodiment, an anti-rotation structure is provided on one of the pressing member and the pipeline connector, the anti-rotation structure being adapted to abut against the other of the pressing member and the pipeline connector when the first connection portion is connected to the second connection portion.

[0034] In one optional embodiment, the pipe connector has a hinge groove, the pressing member passes through the hinge groove and is hinged to the pipe connector, and the anti-rotation structure includes an arc surface and a plane formed at the hinge end of the pressing member. The arc surface and the plane are arranged sequentially along the circumference of the hinge axis of the pressing member. When the pressing member is separated from the pipe connector, the hinge end of the pressing member abuts against the pipe connector with the arc surface. When the pressing member is engaged with the pipe connector, the hinge end of the pressing member abuts against the pipe connector with the plane.

[0035] Beneficial effects: This design allows the pressing member to rotate smoothly relative to the pipe connector when the arc surface abuts against it. When the pressing member is engaged with the pipe connector, the flat surface abuts against the pipe connector, preventing the pressing member from continuing to rotate relative to the pipe connector and limiting the downward pressure of the first and second protrusions, thus preventing damage to the anti-detachment part of the pipe connector.

[0036] In a second aspect, the present invention also provides a blood pressure monitor, including the tubing connection structure described in the first aspect of the present invention;

[0037] The cuff and the pipe connector of the pipe connection structure are fixedly mounted on the cuff.

[0038] Beneficial effects: The blood pressure monitor of the second aspect of the present invention includes or uses the pipeline connection structure of the first aspect of the present invention, and therefore has its beneficial effects, namely, it can make the connection between the fitting and the pipeline connector more reliable, overcome the defects of the prior art where the fitting and the pipe joint are interference fit, resulting in low connection strength and easy separation from the pipe joint due to external force, and avoid the reduction of air tightness between the fitting and the pipeline connector after reconnection. Attached Figure Description

[0039] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0040] Figure 1 This is a perspective view of a pipeline connection structure according to an embodiment of the present invention;

[0041] Figure 2 for Figure 1 The pipe fittings and pressure fittings shown;

[0042] Figure 3 In one embodiment of the present invention, the pressure member and the pipe connection member are separated.

[0043] Figure 4 This is a side view of the pipeline connection structure according to an embodiment of the present invention;

[0044] Figure 5 This is a cross-sectional view of the pipeline connection structure according to an embodiment of the present invention;

[0045] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0046] Figure 7 This is a cross-sectional view of the pipeline connection structure according to an embodiment of the present invention, in which the first connection part and the second connection part are separated;

[0047] Figure 8 This is a cross-sectional view of the pipeline connection structure according to an embodiment of the present invention, in which the first connecting part and the second connecting part are engaged;

[0048] Figure 9 Pipe fittings that form the pipe connection structure according to an embodiment of the present invention;

[0049] Figure 10 This is a cross-sectional view of the pipeline connection structure according to an embodiment of the present invention;

[0050] Figure 11 for Figure 10 Enlarged view of point B in the image.

[0051] Explanation of reference numerals in the attached figures:

[0052] 1. Pipe fitting; 101. Anti-detachment part; 1011. Fixing recess;

[0053] 2. Pipeline connectors; 201. Second connection part; 2011. Straight section; 2012. Clip; 202. First crack-resistant groove; 203. Second crack-resistant groove; 204. Fixing protrusion; 205. Pipe fitting; 206. Sealing ring; 207. Hinge groove;

[0054] 3. Pressing component; 301. First connecting part; 3011. Guide slope; 3021. First pressing arm; 3022. Second pressing arm; 3023. Clearance opening; 3024. First protrusion; 3025. Second protrusion; 304. Arc surface; 305. Plane. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] The following is combined with Figures 1 to 11 The following describes embodiments of the present invention.

[0057] According to an embodiment of the present invention, a pipe connection structure is provided, including a pipe fitting 1, a pipe connector 2, and a retaining member 3. The first end of the pipe fitting 1 has an anti-detachment portion 101 protruding from the pipe wall of the pipe fitting 1. The pipe connector 2 has an interface adapted to communicate with the cavity of the pipe fitting 1. The retaining member 3 has a first connecting portion 301, and the pipe connector 2 has a second connecting portion 201 adapted to be detachably connected to the first connecting portion 301. The retaining member 3 is adapted to constrain the anti-detachment portion 101 of the pipe fitting 1 between the retaining member 3 and the pipe connector 2 when the first connecting portion 301 and the second connecting portion 201 are connected.

[0058] The pipe connection structure of the present invention can press the anti-detachment part 101 of the pipe fitting 1 onto the pipe connector 2 through the pressing member 3, and connect the cavity of the pipe fitting 1 with the interface on the pipe connector 2. By adding the first connecting part 301 and the second connecting part 201 to prevent the pipe fitting 1 from detaching from the pipe connector 2, the connection between the pipe fitting 1 and the pipe connector 2 can be made more reliable. This overcomes the defects of the prior art where the interference fit between the pipe fitting 1 and the pipe joint 205 results in low connection strength and easy separation from the pipe joint 205 due to external force, and avoids the reduction of airtightness between the pipe fitting 1 and the pipe connector 2 after reconnection.

[0059] In addition, since the fitting 1 can be pressed tightly onto the pipe connector 2 by the pressing member 3, even if the interference between the fitting 1 and the pipe connector 2 is set to be small, it is not easy for the fitting 1 and the pipe connector 2 to separate. By reducing the interference between the fitting 1 and the pipe connector 2, it is possible to prevent the pipe from curling and deforming after separating from the pipe connector 2, thereby preventing the airtightness of the reconnection structure of the pipe from being reduced.

[0060] Therefore, the pipe connection structure of the present invention can overcome the defects in the pipe connection structure of the related art, in which the pipe fitting 1 is easily separated from the pipe joint 205 by external force, and the airtightness is reduced after reconnection, resulting in a decrease in the accuracy of the sphygmomanometer.

[0061] Pipe connector 2 can be adapted to be a connector seat or connector plate, etc., depending on the usage environment of the pipe connection structure.

[0062] In one embodiment, the first end of the pressing member 3 is hinged to the pipe connector 2, and the first connecting part 301 is disposed on the second end of the pressing member 3. The pressing member 3 is connected to the pipe. The pipe connector 2 is preferably made of a material with a certain elasticity, such as plastic, silicone, etc., so that when the end of the pipe 1 abuts against the pipe connector 2, the pipe connector 2 can generate a certain amount of compression, thereby improving the airtightness between the interface and the pipe 1.

[0063] The user can drive the pressure member 3 to rotate about its hinge axis with the pipeline connection member 2, thereby connecting or separating the first connection member and the second connection member.

[0064] In a variant embodiment, the pressure member 3 is detachably connected to the pipe connector 2. When the pressure member 3 is separated from the pipe connector 2, the pipe 1 can be inserted between the pressure member 3 and the pipe connector 2.

[0065] When the pressing member 3 is connected to the pipe connector 2, it can press the anti-detachment part 101 onto the pipe connector 2.

[0066] like Figure 1 and Figure 2As shown, in one embodiment, the pressing member 3 includes a first pressing arm 3021 and a second pressing arm 3022 spaced apart along the rotation axis of the pressing member 3. The first ends of the first pressing arm 3021 and the second pressing arm 3022 are hinged to the pipe connector 2. A clearance opening 3023 is formed between the first pressing arm 3021 and the second pressing arm 3022 for the second end of the pipe 1 to pass through, and a first connecting portion 301 is formed at the movable ends of the first pressing arm 3021 and the second pressing arm 3022.

[0067] This allows the anti-detachment part 101 of the pipe fitting 1 to be inserted between the pressure member 3 and the pipe connector 2 when the first connecting part 301 is separated from the second connecting part 201. The second end of the pipe fitting 1 can pass through the pressure member 3 through the relief opening 3023. Then the first connecting part 301 and the second connecting part 201 are connected, and the first pressure arm 3021 and the second pressure arm 3022 can be pressed tightly on the anti-detachment part 101 of the pipe fitting 1.

[0068] In one embodiment, the second connection portion 201 includes a snap-fit ​​formed on the pipe connector 2. The first connection portion 301 is a connecting rod connecting the second ends of the first pressure arm 3021 and the second pressure arm 3022. The snap-fit ​​is adapted to pass through the clearance opening 3023 and engage with the connecting rod.

[0069] In a variant implementation, the first connecting portion 301 and the second connecting portion 201 may also be selected as a threaded connection assembly, a riveting assembly, or a magnetic traction assembly, etc.

[0070] In one embodiment, such as Figure 5 , Figure 6 and Figure 7 As shown, the first connecting part 301 is adapted to have a guide slope 3011 formed on the surface that engages with the snap fastener. The snap fastener includes a straight section 2011 formed on the pipe connector 2 and a snap head 2012 connected to the end of the straight section 2011 away from the pipe connector 2. The first connecting part 301 is adapted to be snapped between the straight section 2011 and the snap head 2012.

[0071] During the engagement of the first connecting part 301 with the buckle, the guide ramp facilitates the buckle head 2012 to abut against it, and during the process of the pressing member 3 being fastened on the pipe connector 2, it slides along the surface of the buckle head 2012 to compress the buckle head 2012 to deform in a direction away from the first connecting member, until the guide ramp passes over the buckle head 2012, and causes the first connecting member to be locked between the straight section 2011 and the buckle head 2012, so as to lock the pressing member 3 and the pipe connector 2 together.

[0072] When disassembling pipe fitting 1, the user can pull the buckle to separate the buckle from the first connector, and then pass the second end of pipe fitting 1 through the relief opening 3023, and pipe fitting 1 is taken out between the pressure member 3 and the pipe connector 2.

[0073] The cross-section of the buckle along a preset direction can be selected to include a rectangle and an ellipse arranged sequentially along the direction away from the pipe connector 2. A straight section 2011 is formed on the rectangular portion, and a clip head 2012 is formed on the elliptical portion.

[0074] As one possible implementation, the buckle has an umbrella-shaped cross-section along a preset direction, with a straight section 2011 formed on the rod of the umbrella-shaped shape and a buckle head 2012 formed on the top of the umbrella-shaped shape.

[0075] In one embodiment, a first anti-crack groove 202 and a second anti-crack groove 203 are respectively formed on both sides of the buckle. When the first connecting part 301 is connected to the second connecting part 201, the first pressure arm 3021 and the second pressure arm 3022 are located in the first anti-crack groove 202 and the second anti-crack groove 203, respectively. After setting the first anti-crack groove 202 and the second anti-crack groove 203, the length of the buckle can be increased, which allows the buckle to deform more when it deforms, thus preventing the buckle from breaking during the contact and engagement process with the first connecting member.

[0076] The first anti-crack groove 202 and the second anti-crack groove 203 are preferably sloped at the corners of the pipe connector 2 where they are adapted to engage with the pressure member 3. When the connecting rod is engaged with the buckle, the first anti-crack groove 202 and the second anti-crack groove 203 are adapted to make surface contact with the lower surfaces of the first pressure arm 3021 and the second pressure arm 3022, respectively. This increases the contact area between the first pressure arm 3021, the second pressure arm 3022 and the pipe connector 2, preventing the first pressure arm 3021 and the second pressure arm 3022 from being damaged by the corners of the pipe connector 2.

[0077] Meanwhile, the first anti-cracking groove 202 and the second anti-cracking groove 203 can also limit the first pressure arm 3021 and the second pressure arm 3022 in a accommodating manner to prevent the first pressure arm 3021 and the second pressure arm 3022 from shifting and causing the pipe fitting 1 to slip off.

[0078] In one embodiment, such as Figure 8 and Figure 9 As shown, the pipe connection structure also includes a fixing protrusion 204 and a fixing recess 1011. The fixing protrusion 204 is formed on one of the anti-detachment portion 101 and the pipe connector 2. The fixing recess 1011 is formed on the other of the anti-detachment portion 101 and the pipe connector 2, and is adapted to accommodate and limit the fixing protrusion 204.

[0079] Preferably, there are at least two fixing protrusions 204, each located on one side of the interface, and the fixing recesses 1011 are correspondingly provided with the fixing protrusions 204. The fixing recesses 1011 can be through grooves penetrating the anti-detachment part 101 or the pipe connector 2, or they can be non-penetrating through holes formed on the anti-detachment part 101 or the pipe connector 2. For example, in this embodiment, the fixing recesses 1011 are through holes penetrating the anti-detachment part 101, the fixing protrusions 204 pass through the anti-detachment part 101, and the height of the fixing protrusions 204 is greater than the thickness of the anti-detachment part 101, which can ensure that the anti-detachment part 101 is not easily detached.

[0080] In one embodiment, a pipe connector 205 is formed on the pipe connector 2, an interface is formed inside the pipe connector 205, and the pipe fitting 1 is adapted to be sleeved on the pipe connector 205. The pipe connection structure also includes a sealing ring 206 sleeved on the pipe connector 205 and clamped between the pipe connector 205 and the pipe fitting 1.

[0081] By inserting the pipe fitting 205 into the pipe fitting 1 and adding a sealing ring 206 between the pipe fitting 1 and the pipe connector 2, the airtightness between the pipe fitting 1 and the pipe connector 2 can be improved. Connecting the pipe fitting 1 and the pipe connector 2 through the sealing ring 206 can ensure the connection between the pipe fitting 205 and the pipe fitting 1 while avoiding a large interference fit between the pipe fitting 1 and the pipe fitting 205, which would cause the pipe fitting 1 to curl and deform due to long-term interference fit after being separated from the pipe fitting 205.

[0082] In one embodiment, such as Figure 4 As shown, the pressing member 3 includes a first protrusion 3024 and a second protrusion 3025 respectively formed on the side of the first pressing arm 3021 and the second pressing arm 3022 near the pipe connector 2. The first protrusion 3024 and the second protrusion 3025 can abut against the anti-detachment part 101 on both sides of the pipe wall of the pipe 1, and can reliably limit the pipe 1.

[0083] In one embodiment, such as Figure 10 and Figure 11 As shown, the pipe connector 2 has a hinge groove 207. The pressing member 3 passes through the hinge groove 207 and is hinged to the pipe connector 2. The hinge end of the pressing member 3 has an arc surface 304 and a flat surface 305 connected in sequence. When the first connecting part 301 and the second connecting part 201 are separated, the hinge end of the pressing member 3 abuts against the pipe connector 2 with the arc surface 304. When the first connecting part 301 and the second connecting part 201 are engaged, the hinge end of the pressing member 3 abuts against the pipe connector 2 with the flat surface 305.

[0084] With this configuration, when the arc surface 304 abuts against the pipe connector 2, the pressing member 3 can smoothly rotate relative to the pipe connector 2. When the pressing member 3 is engaged with the pipe connector 2, the flat surface 305 can abut against the pipe connector 2, thereby preventing the pressing member 3 from continuing to rotate relative to the pipe connector 2, and limiting the first protrusion 3024 and the second protrusion 3025 from continuing to press down, preventing damage to the anti-detachment part 101 of the pipe fitting 1.

[0085] According to an embodiment of the present invention, in another aspect, a blood pressure monitor is also provided, including a cuff and a tubing connection structure as described in the first aspect of the present invention. A tubing connector 2 of the tubing connection structure is fixedly disposed on the cuff.

[0086] The blood pressure monitor of the second aspect of the present invention includes or uses the pipeline connection structure of the first aspect of the present invention, and thus has the beneficial effect of making the connection between the fitting 1 and the pipeline connector 2 more reliable, overcoming the defects of the prior art where the fitting 1 and the pipe connector 205 are interference-fitted, resulting in low connection strength and easy separation from the pipe connector 205 by external force, and avoiding the reduction of air tightness between the fitting 1 and the pipeline connector 2 after reconnection.

[0087] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A pipe connection structure, characterized in that, include: Pipe fitting (1), the first end of which is formed with an anti-detachment part (101) protruding from the pipe wall of the pipe fitting (1); Pipe connector (2), wherein an interface is formed on the pipe connector (2) that is suitable for communicating with the cavity of the pipe fitting (1); A pressing member (3) is provided, wherein a first connecting portion (301) is formed on the pressing member (3), and a second connecting portion (201) is formed on the pipe connector (2) to be detachably connected to the first connecting portion (301). The pressing member (3) is adapted to constrain the anti-detachment portion (101) of the pipe connector (1) between the pressing member (3) and the pipe connector (2) when the first connecting portion (301) and the second connecting portion (201) are connected. The pressing member (3) includes a first pressing arm (3021) and a second pressing arm (3022) spaced apart along the rotation axis of the pressing member (3), and a clearance opening (3023) is formed between the first pressing arm (3021) and the second pressing arm (3022) for the second end of the pipe fitting (1) to pass through. The second connecting part (201) includes a buckle formed on the pipe connector (2), and the first connecting part (301) is a connecting rod connected between the second end of the first pressure arm (3021) and the second pressure arm (3022). The buckle is adapted to pass through the relief opening (3023) and engage with the first connecting part (301). The buckle has a first anti-crack groove (202) and a second anti-crack groove (203) on both sides respectively. When the first connecting part (301) is connected to the second connecting part (201), the second ends of the first pressure arm (3021) and the second pressure arm (3022) are located in the first anti-crack groove (202) and the second anti-crack groove (203) respectively.

2. The pipeline connection structure according to claim 1, characterized in that, The first end of the pressure member (3) is hinged to the pipeline connector (2), and the first connection part (301) is disposed on the second end of the pressure member (3).

3. The pipeline connection structure according to claim 2, characterized in that, The first end of the first pressure arm (3021) and the second pressure arm (3022) is hinged to the pipeline connector (2).

4. The pipeline connection structure according to claim 1, characterized in that, The first connecting part (301) is adapted to have a guide slope (3011) formed on the surface that engages with the buckle. The buckle includes a straight section (2011) formed on the pipe connector (2) and a clamp head (2012) connected to one end of the straight section (2011) away from the pipe connector (2). The first connecting part (301) is adapted to be engaged between the straight section (2011) and the clamp head (2012).

5. The pipeline connection structure according to any one of claims 1 to 4, characterized in that, Also includes: A fixing protrusion (204) is formed on one of the anti-detachment part (101) and the pipe connector (2); A fixing recess (1011), formed on the other of the anti-detachment portion (101) and the pipe connector (2), is adapted to receive and limit the fixing protrusion (204).

6. The pipeline connection structure according to any one of claims 1 to 4, characterized in that, The pipe connector (2) has a pipe joint (205) formed on it, the interface is formed inside the pipe joint (205), the pipe fitting (1) is adapted to be sleeved on the pipe joint (205), and the pipe connection structure further includes a sealing ring (206) sleeved on the pipe joint (205) and sandwiched between the pipe joint (205) and the pipe fitting (1).

7. The pipeline connection structure according to claim 3 or 4, characterized in that, The pressing member (3) further includes a first protrusion (3024) and a second protrusion (3025) respectively formed on the side of the first pressing arm (3021) and the second pressing arm (3022) near the pipe connector (2), the first protrusion (3024) and the second protrusion (3025) respectively abut against the anti-detachment part (101) on both sides of the pipe wall of the pipe (1).

8. The pipeline connection structure according to any one of claims 1 to 4, characterized in that, An anti-rotation structure is provided on one of the pressing member and the pipeline connector (2), and the anti-rotation structure is adapted to abut against the other of the pressing member and the pipeline connector (2) when the first connecting part (301) and the second connecting part (201) are connected.

9. The pipeline connection structure according to claim 8, characterized in that, The pipe connector (2) is provided with a hinge groove (207). The pressing member (3) passes through the hinge groove (207) and is hinged to the pipe connector (2). The anti-rotation structure includes an arc surface (304) and a plane (305) formed at the hinge end of the pressing member (3). The arc surface (304) and the plane (305) are arranged sequentially along the circumference of the hinge axis of the pressing member (3). When the pressing member (3) is separated from the pipe connector (2), the hinge end of the pressing member (3) abuts against the pipe connector (2) with the arc surface (304). When the pressing member (3) is engaged with the pipe connector (2), the hinge end of the pressing member (3) abuts against the pipe connector (2) with the plane (305).

10. A blood pressure monitor, characterized in that, include: Pipeline connection structure as described in any one of claims 1 to 9; The sleeve, the pipe connector (2) of the pipe connection structure is fixedly installed on the sleeve.

Images