Flush valve

Abstract

The utility model discloses a flush valve which comprises a valve body, a valve rod and a valve rod. The pressing piece is clamped with the valve body, and the pressing piece and the fixing table are arranged at an interval; the regulator comprises a fixing part, a through hole is formed in the fixing part, the valve body penetrates through the through hole, and the fixing part is located between the fixing table and the pressing piece. The fixing part is limited between the fixing table and the pressing piece, when the regulator is used, the regulator does not fall off, and the stability of the flush valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of invasive pressure sensors, in particular to a flushing valve. Background Art

[0002] Invasive pressure sensors are used for timely monitoring of blood pressure during major surgeries or for critically ill patients. One end of the sensor is directly connected to the human blood vessels, and the blood pressure is transmitted to the sensor chip through the pressure extension tube. The chip converts this physiological pressure (mechanical pressure) into an electrical energy signal, which is then converted into an intuitive waveform symbol through the module on the monitor, so that doctors can understand the patient's condition at any time according to the changes in blood pressure. The invasive pressure sensor consists of an infusion tube, a flushing valve, a chip, and a pressure extension tube. During the flushing operation, the flushing valve is used to flush the pipeline. The flushing valve is small in size and includes a regulator and a valve body. The regulator is connected to the valve body. Pressing the regulator controls the flushing valve switch. The existing regulator is set to be clamped on the valve body. When the flushing valve is used, the regulator is easy to fall off. Utility Model Content

[0003] The main purpose of the utility model is to provide a flushing valve, aiming to solve the problem that a regulator is easy to fall off when the flushing valve is used.

[0004] To achieve the above-mentioned purpose, the utility model proposes a flushing valve, comprising: a valve body, a fixing platform is arranged on the outer periphery of the valve body; a pressing piece, the pressing piece is clamped with the valve body, the pressing piece and the fixing platform are arranged at intervals; a regulator, the regulator comprises a fixing part, the fixing part has a through hole, the valve body passes through the through hole, and the fixing part is located between the fixing platform and the pressing piece.

[0005] Preferably, a positioning block is protruding from one side of the fixing portion close to the pressing piece, and a positioning groove is formed on the pressing piece corresponding to the positioning block, and the positioning block is located in the positioning groove.

[0006] Preferably, one end of the fixing portion away from the pressing member abuts against the fixing platform, and / or one end of the positioning block away from the fixing portion abuts against the bottom surface of the positioning groove.

[0007] Preferably, a chamfer is formed on one end of the positioning block away from the fixing portion.

[0008] Preferably, a limiting groove is provided on the inner wall of the through hole, the limiting groove is extended to the opposite end surfaces of the through hole, a limiting block is provided on the valve body corresponding to the limiting groove, and the limiting block is located in the limiting groove.

[0009] Preferably, a colloid is disposed on the surface of the limit block.

[0010] Preferably, a plurality of the limiting grooves are provided, and a plurality of the limiting blocks are provided correspondingly, and each of the limiting blocks is inserted into a limiting groove; and the distances between adjacent limiting blocks are equal.

[0011] Preferably, a chamfer is formed on one end of the limit block away from the fixing platform.

[0012] Preferably, the regulator further comprises a control part connected to the fixing part, the control part is provided with a guide through hole, and the inner wall of the guide through hole close to the fixing part is inclined. Preferably, the regulator is arranged as a symmetrical structure.

[0013] Compared with the prior art, the flushing valve provided by the utility model has the following beneficial effects:

[0014] The flushing valve in the technical solution of the utility model includes: a valve body, a fixing platform is arranged on the outer periphery of the valve body; a pressing piece, the pressing piece is clamped with the valve body, and the pressing piece and the fixing platform are arranged at intervals; a regulator, the regulator includes a fixing part, the fixing part is provided with a through hole, the valve body passes through the through hole, and the fixing part is located between the fixing platform and the pressing piece. The fixing part is limited between the fixing platform and the pressing piece, and when the regulator is used, the regulator does not fall off, thereby improving the stability of the flushing valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a flushing valve provided in the first embodiment of the utility model;

[0017] Figure 2 An exploded view of a flushing valve provided in the first embodiment of the utility model;

[0018] Figure 3 A schematic diagram of the three-dimensional structure of a regulator of a flushing valve provided in the first embodiment of the utility model;

[0019] Figure 4 It is a schematic three-dimensional structure diagram of a pressed component of a flush valve provided in the first embodiment of the utility model.

[0020] Description of Figure Numbers:

[0021] Label name Label name 100 Flush valve 110 Valve body 120 Pressed parts 130 Regulator 140 Joystick 111 The first body 112 The second body 1121 Fixed platform 131 Fixed part 132 Control Department 1311 Through Hole 1321 Guide hole 133 Positioning block 121 Positioning slot 1312 Limit slot 1122 Limit block

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0026] Invasive pressure sensors are used for timely monitoring of blood pressure during major surgeries or for critically ill patients. One end of the sensor is directly connected to the human blood vessels, and the blood pressure is transmitted to the sensor chip through the pressure extension tube. The chip converts this physiological pressure (mechanical pressure) into an electrical energy signal, which is then converted into an intuitive waveform symbol through the module on the monitor, so that doctors can understand the patient's condition at any time according to the changes in blood pressure. The invasive pressure sensor consists of an infusion tube, a flushing valve, a chip, and a pressure extension tube. During the flushing operation, the flushing valve is used to flush the pipeline. The flushing valve is small in size and includes a regulator and a valve body. The regulator is connected to the valve body. Pressing the regulator controls the flushing valve switch. The existing regulator is set to be clamped on the valve body. When the flushing valve is used, the regulator is easy to fall off.

[0027] Please combine Figure 1-Figure 4The first embodiment of the utility model provides a flushing valve 100, comprising: a valve body 110, a fixing platform 1121 is arranged on the periphery of the valve body 110; a pressing piece 120, the pressing piece 120 is clamped with the valve body 110, and the pressing piece 120 and the fixing platform 1121 are arranged at intervals; a regulator 130, the regulator 130 comprises a fixing portion 131, the fixing portion 131 is provided with a through hole 1311, the valve body 110 passes through the through hole 1311, and the fixing portion 131 is located between the fixing platform 1121 and the pressing piece 120. The fixing portion 131 is limited between the fixing platform 1121 and the pressing piece 120, and the regulator 130 does not fall off when the regulator 130 is used, thereby improving the stability of the flushing valve 100.

[0028] It should be noted that the flush valve 100 also includes a control rod 140 , which controls the opening and closing of the channel in the valve body 110 . The regulator 130 is connected to the control rod 140 . Pressing the regulator 130 can pull the control rod 140 , thereby controlling the opening and closing of the channel in the valve body 110 .

[0029] It should be noted that the valve body 110 includes a first seat body 111 and a second seat body 112 that are vertically connected. A liquid flow channel is opened in the first seat body 111. The second seat body 112 is configured to be cylindrical. The fixing platform 1121 is specifically configured to be on the outer periphery of the second seat body 112. The fixing platform 1121 is configured to be ring-shaped. The pressing piece 120 is configured to be a cylindrical structure. The second seat body 112 is inserted into the pressing piece 120 and is clamped to the inner wall of the pressing piece 120. A clamping space is formed between the pressing piece 120 and the fixing platform 1121, and the fixing portion 131 is located in the clamping space.

[0030] It can be understood that when the flushing valve 100 is assembled, the second seat body 112 is inserted from one side of the through hole 1311 and exposed from the other side. The exposed part is clamped with the pressed part 120, and the fixing platform 1121 and the pressed part 120 limit the fixing part 131, so that the regulator 130 is always located on the valve body 110.

[0031] It can be understood that the size of the through hole 1311 matches that of the second base body 112 .

[0032] Furthermore, a positioning block 133 is protruded from one side of the fixing portion 131 close to the pressing piece 120, and a positioning groove 121 is formed on the pressing piece 120 corresponding to the positioning block 133, and the positioning block 133 is located in the positioning groove 121. It can be understood that the bottom wall of the positioning groove 121 and the fixing platform 1121 jointly limit the position of the fixing portion 131, and the positioning block 133 is inserted into the positioning groove 121 to further limit the fixing portion 131, and specifically further limit the fixing portion 131 from moving in a direction perpendicular to the fixing platform 1121.

[0033] In this embodiment, the positioning block 133 is annular, the inner surface of the positioning block 133 is coplanar with the inner surface of the through hole 1311 , and the positioning groove 121 is correspondingly configured as a circular groove. The outer surface of the positioning block 133 is in contact with the side wall of the positioning groove 121 .

[0034] It should be noted that the bottom wall of the positioning groove 121 is provided with a receiving groove, the side wall of the receiving groove is provided with an abutting groove, the side wall of the second seat body 112 away from the end of the first seat body 111 is provided with an abutting block, the second seat body 112 is inserted into the receiving groove, and the second seat body 112 moves to make the abutting block close to one end of the fixing platform 1121 abut against the side wall of the abutting groove, so that the pressing piece 120 is clamped with the valve body 110. It can be understood that the second seat body 112 is deformed to allow the abutting block to be inserted into the abutting groove.

[0035] Further, one end of the fixing portion 131 away from the pressing member 120 abuts against the fixing platform 1121, and / or one end of the positioning block 133 away from the fixing portion 131 abuts against the bottom surface of the positioning groove 121. The fixing portion 131 is further limited.

[0036] In this embodiment, the end of the fixing portion 131 away from the pressing member 120 abuts against the fixing platform 1121, and the end of the positioning block 133 away from the fixing portion 131 abuts against the bottom surface of the positioning groove 121. At this time, the fixing platform 1121 and the bottom wall of the positioning groove 121 jointly clamp the fixing portion 131, thereby improving the stability of the flush valve 100.

[0037] Furthermore, a chamfer is provided at one end of the positioning block 133 away from the fixing portion 131. This serves as a guide when assembling the flush valve 100 and facilitates the positioning block 133 to be inserted into the positioning groove 121. It should be noted that the chamfer includes a rounded corner.

[0038] Furthermore, a limiting groove 1312 is provided on the inner wall of the through hole 1311, and the limiting groove 1312 is provided to the opposite two end surfaces of the through hole 1311. A limiting block 1122 is provided on the valve body 110 corresponding to the limiting groove 1312, and the limiting block 1122 is located in the limiting groove 1312. The limiting block 1122 is provided in the limiting groove 1312, and can limit the rotation angle of the fixing portion 131 around the second seat body 112, thereby further improving the stability of the regulator 130 installed on the valve body 110.

[0039] It should be noted that the limiting groove 1312 is opened to the end face of the positioning block 133 away from the fixing platform 1121, that is, the limiting groove 1312 passes through the fixing part 131 and the positioning block 133; the side surface of the limiting groove 1312 is parallel to the axis of the through hole 1311, which facilitates the installation of the fixing part 131 on the second base body 112.

[0040] In this embodiment, two opposite side surfaces of the limiting groove 1312 abut against the limiting block 1122 to further limit the fixing portion 131 to prevent the fixing portion 131 from rotating.

[0041] Furthermore, a colloid is provided on the surface of the limit block 1122. The colloid adheres the limit block 1122 and the side wall of the limit groove 1312, further improving the stability of the fixing portion 131 disposed on the second seat body 112. The colloid can be common adhesives such as epoxy resin sealant, polyurethane sealant, room temperature vulcanized silicone rubber, etc. In this embodiment, the colloid is selected as epoxy resin sealant.

[0042] Furthermore, the thickness of the colloid is set to 0.2-0.3 mm. The thickness of the colloid can be 0.20 mm, 0.23 mm, 0.27 mm and 0.30 mm. In this embodiment, the thickness of the colloid is preferably set to 0.27 mm.

[0043] Furthermore, there are a plurality of limit grooves 1312, and a plurality of limit blocks 1122 are provided correspondingly, and each limit block 1122 is inserted into a limit groove 1312; the distances between adjacent limit blocks 1122 are equal. The force acting on the limit blocks 1122 is equally divided, and the limiting ability of the limit blocks 1122 is improved. In this embodiment, there are two limit blocks 1122, which are distributed on opposite sides of the second seat body 112, and there are two limit grooves 1312 correspondingly. A limit block 1122 is inserted into a limit groove 1312 to prevent the fixing portion 131 from rotating. It should be noted that the sizes of all limit blocks 1122 are equal, so that the fixing portion 131 can be sleeved on the second seat body 112.

[0044] Furthermore, a chamfer is formed at one end of the limit block 1122 away from the fixing platform 1121 to guide the limit block 1122 to be inserted into the limit groove 1312. It should be noted that the chamfer includes a rounded corner.

[0045] Furthermore, the regulator 130 also includes a control part 132 connected to the fixing part 131. The control part 132 is provided with a guide hole 1321. The inner wall of the guide hole 1321 close to the fixing part 131 is inclined. The control rod 140 passes through the guide hole 1321. The control rod 140 is provided with a protrusion. The protrusion is located on the side of the control part 132 away from the fixing platform 1121. When in use, the regulator 130 is pressed to move the fixing part 131 and the control part 132 in a direction of increasing the distance. The fixing part 131 abuts against the fixing platform 1121, and the control part 132 abuts against the protrusion, thereby pulling the control rod 140 to control the opening and closing of the flushing valve 100. During assembly, the boss of the control rod 140 passes through the guide through hole 1321 from the side of the guide through hole 1321 close to the fixed platform 1121, and moves to the side of the guide through hole 1321 away from the fixed platform 1121. The inner wall of the guide through hole 1321 is inclined to facilitate the boss to pass through the guide through hole 1321, wherein the inclination angle of the inner wall of the guide through hole 1321 is 28-32 degrees, that is, the angle between the inner wall of the guide through hole 1321 and the axis of the guide through hole 1321 is 28-32 degrees. In this embodiment, the angle is preferably set to 30 degrees.

[0046] Furthermore, the regulator 130 is configured as a symmetrical structure, which facilitates the installation of the regulator 130 and improves the installation efficiency of the flush valve 100 .

[0047] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A flush valve, characterized in that: include: A valve body, wherein a fixing platform is arranged on the periphery of the valve body; A pressing piece, the pressing piece is clamped with the valve body, and the pressing piece is spaced apart from the fixing platform; The regulator comprises a fixing part, the fixing part is provided with a through hole, the valve body passes through the through hole, and the fixing part is located between the fixing platform and the pressing part.

2. The flush valve according to claim 1, characterized in that A positioning block is protruded from one side of the fixing portion close to the pressing piece, and a positioning groove is formed on the pressing piece corresponding to the positioning block, and the positioning block is located in the positioning groove.

3. The flush valve according to claim 2, characterized in that One end of the fixing portion away from the pressing member abuts against the fixing platform, and / or one end of the positioning block away from the fixing portion abuts against the bottom surface of the positioning groove.

4. The flush valve according to claim 2, characterized in that The positioning block has a chamfered corner at one end away from the fixing portion.

5. The flush valve according to claim 1, wherein: The inner wall of the through hole is provided with a limiting groove, the limiting groove is extended to the two opposite end surfaces of the through hole, and a limiting block is arranged on the valve body corresponding to the limiting groove, and the limiting block is located in the limiting groove.

6. The flush valve according to claim 5, characterized in that The surface of the limiting block is provided with colloid.

7. The flush valve according to claim 5, characterized in that There are a plurality of limit slots, and a plurality of limit blocks are provided correspondingly, and each limit block is inserted into a limit slot; The distances between adjacent limiting blocks are equal.

8. The flush valve according to claim 5, characterized in that The limiting block is chamfered at one end away from the fixing platform.

9. The flush valve according to claim 1, wherein: The regulator further comprises a control part connected to the fixing part, wherein the control part is provided with a guide through hole, and an inner wall of the guide through hole close to a side of the fixing part is inclined.

10. The flush valve according to any one of claims 1 to 9, characterized in that: The regulator is configured as a symmetrical structure.

Images