CN215981417U

CN215981417U - One-way valve device in high performance liquid chromatography flow path

Info

Publication number: CN215981417U
Application number: CN202121781057.1U
Authority: CN
Inventors: 陈德君; 徐新东; 董成贺; 陈�峰; 王群行; 裔思远
Original assignee: Yangzhou Branch Technology Co ltd
Current assignee: Yangzhou Branch Technology Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-03-08
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses a check valve device in a high performance liquid chromatography flow path, which relates to the technical field of liquid chromatography and comprises the following components: the main body comprises a valve body and pipelines, and the pipelines are connected to two ends of the valve body; the installation mechanism comprises a fixing groove, a mounting groove and a fixing block, wherein the fixing groove is formed in the outer wall of the pipeline. According to the utility model, the installation mechanism is arranged, when the valve body and the pipeline are connected, the pipeline is inserted into the installation groove until the fixed block is contacted with the fixed groove, the fixed block is displaced into the fixed groove under the elastic force of the fixed spring to fix the pipeline, when the valve body and the pipeline are separated, the rotating ring is rotated to drive the fixed gear to rotate, the fixed gear is rotated to drive the fixed screw rod to rotate, the fixed screw rod is rotated to drive the fixed block to be displaced, the fixed block is displaced out of the fixed groove, the pipeline is not fixed, and the valve body and the pipeline are convenient to install and remove quickly.

Description

One-way valve device in high performance liquid chromatography flow path

Technical Field

The utility model relates to the technical field of liquid chromatography, in particular to a one-way valve device in a high performance liquid chromatography flow path.

Background

The liquid phase chromatography is a separation and analysis technology, which is characterized in that liquid is used as a mobile phase, the stationary phase can be in various forms, such as paper, a thin plate, a packed bed and the like, in the development process of the chromatography technology, in order to distinguish various methods, respective names are generated according to the forms of the stationary phase, such as paper chromatography, thin layer chromatography and column liquid phase chromatography, the mobile phase of the classical liquid chromatography slowly flows through a chromatographic column by means of gravity, so that the granularity of the stationary phase cannot be too small (about 100 mu m-150 mu m), and a separated sample is collected in a grading way and then analyzed, so that the classical liquid chromatography not only has low separation efficiency and slow analysis speed, but also has complex operation, a high-efficiency stationary phase with the granularity of less than 10 mu m is developed in the 60 th 20 th century, and the defects of the classical liquid chromatography are overcome by using a high-pressure infusion pump and an automatic recording detector, development into high performance liquid chromatography, also known as high pressure liquid chromatography.

However, at present, in the process of using the high performance liquid chromatography flow path, a check valve device needs to be used, the operation of the check valve is complex in the process of connecting the check valve with the pipeline, and the check valve and the pipeline need to be quickly installed and dismantled by a structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: in order to solve the problem that the structure is needed to rapidly install and remove the check valve and the pipeline, a check valve device in a high performance liquid chromatography flow path is provided.

In order to achieve the purpose, the utility model provides the following technical scheme: a one-way valve device in a high performance liquid chromatography flow path, comprising:

the main body comprises a valve body and pipelines, and the pipelines are connected to two ends of the valve body;

the mounting mechanism comprises a fixing groove, a mounting groove and a fixing block, wherein the fixing groove is formed in the outer wall of the pipeline, the mounting groove is formed in two ends of the valve body, and the fixing block is connected to the inner wall of the mounting groove in a sliding mode;

and the sealing mechanism is positioned in the valve body and used for sealing the connection between the valve body and the pipeline.

As a still further scheme of the utility model: the outer wall of the valve body is rotatably connected with a rotating ring, a fixing spring is connected between the fixing block and the valve body, the inner wall of the fixing block is connected with a fixing screw rod, one end of the fixing screw rod is fixedly connected with a fixing gear, and the inner wall of the pipeline is connected with a fixing plate.

As a still further scheme of the utility model: sealing mechanism includes sealing member and slider, sealing member sliding connection is in the both ends of valve body and one side of mounting groove, slider sliding connection is in the inner wall one end of mounting groove, the outer wall connection of slider has connecting gear, connecting gear's outer wall connection has the connecting rod, the one end fixedly connected with loose ring of connecting rod, be connected with connecting spring between loose ring and the sealing member.

As a still further scheme of the utility model: the inner wall of fixed slot and the outer wall of fixed block laminate mutually, the one end of fixed block is the inclined plane, the outer wall of pipeline laminates with the inner wall of mounting groove mutually.

As a still further scheme of the utility model: the inner wall of fixed block is provided with the internal thread, the external screw thread of fixed screw is laminated with the internal thread of fixed block mutually, the outer wall of rotating ring is provided with the teeth of a cogwheel, the tooth's socket of fixed gear meshes with the teeth of a cogwheel of rotating ring mutually.

As a still further scheme of the utility model: the outer walls of the sliding block and the connecting rod are provided with tooth grooves, the connecting gear is rotationally connected with the valve body, and the gear teeth of the connecting gear are meshed with the tooth grooves of the sliding block and the connecting rod.

As a still further scheme of the utility model: the outer wall of activity ring and sealing member is provided with movable groove, the inner wall in activity groove is laminated with the outer wall of activity ring and sealing member mutually.

Compared with the prior art, the utility model has the beneficial effects that:

1. by arranging the mounting mechanism, when the valve body is connected with the pipeline, the pipeline is inserted into the mounting groove until the fixed block is contacted with the fixed groove, the fixed block moves into the fixed groove under the elastic action of the fixed spring to fix the pipeline, when the valve body is separated from the pipeline, the rotating ring is rotated to drive the fixed gear to rotate, the fixed gear rotates to drive the fixed screw rod to rotate, the fixed screw rod rotates to drive the fixed block to move, the fixed block moves out of the fixed groove, the pipeline is not fixed, and the valve body and the pipeline can be conveniently and rapidly mounted and dismounted;

2. through setting up sealing mechanism, when connecting valve body and pipeline, in the pipeline inserts the mounting groove, when fixed to the pipeline, fixed plate and valve body contact, pipeline displacement drives the slider and carries out the displacement simultaneously, the slider displacement drives connecting gear and rotates, connecting gear rotates and drives the connecting rod and carry out the displacement, the connecting rod displacement drives the loose collar and carries out the displacement, the loose collar displacement drives connecting spring and takes place deformation, connecting spring deformation produces elasticity and promotes sealing member and fixed plate laminating, be convenient for improve the leakproofness of valve body and pipe connection.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the installation of the conduit of the present invention;

FIG. 3 is an enlarged view of the present invention at A.

In the figure: 1. a main body; 101. a valve body; 102. a pipeline; 2. an installation mechanism; 201. fixing grooves; 202. mounting grooves; 203. a fixed block; 204. a rotating ring; 205. fixing the spring; 206. fixing the screw rod; 207. fixing a gear; 208. a fixing plate; 3. a sealing mechanism; 301. a seal member; 302. a slider; 303. a connecting gear; 304. a connecting rod; 305. a movable ring; 306. a spring is connected.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.

Referring to fig. 1 to 3, in an embodiment of the present invention, a check valve device in a high performance liquid chromatography flow path includes:

a main body 1 including a valve body 101 and a pipe 102, the pipe 102 being connected to both ends of the valve body 101;

the mounting mechanism 2 comprises a fixing groove 201, a mounting groove 202 and a fixing block 203, wherein the fixing groove 201 is arranged on the outer wall of the pipeline 102, the mounting grooves 202 are arranged at two ends of the valve body 101, and the fixing block 203 is connected to the inner wall of the mounting groove 202 in a sliding manner;

the sealing mechanism 3 is positioned inside the valve body 101 and seals the connection between the valve body 101 and the pipe 102.

Please refer to fig. 1 and fig. 3, the outer wall of the valve body 101 is rotatably connected with a rotating ring 204, a fixing spring 205 is connected between the fixing block 203 and the valve body 101, the inner wall of the fixing block 203 is connected with a fixing screw rod 206, one end of the fixing screw rod 206 is fixedly connected with a fixing gear 207, and the inner wall of the pipeline 102 is connected with a fixing plate 208, so that the fixing block 203 can be displaced conveniently.

Please refer to fig. 1 and fig. 3, the sealing mechanism 3 includes a sealing member 301 and a sliding block 302, the sealing member 301 is slidably connected to two ends of the valve body 101 and one side of the mounting groove 202, the sliding block 302 is slidably connected to one end of the inner wall of the mounting groove 202, the outer wall of the sliding block 302 is connected to a connecting gear 303, the outer wall of the connecting gear 303 is connected to a connecting rod 304, one end of the connecting rod 304 is fixedly connected to a movable ring 305, and a connecting spring 306 is connected between the movable ring 305 and the sealing member 301, so as to facilitate the sealing of the connection between the valve body 101 and the pipeline 102.

Please refer to fig. 1 and 3, the inner wall of the fixing groove 201 is attached to the outer wall of the fixing block 203, so that the fixing block 203 can move into the inner wall of the fixing groove 201, one end of the fixing block 203 is an inclined surface, so that the fixing block 203 can move under stress, and the outer wall of the pipeline 102 is attached to the inner wall of the mounting groove 202, so that the pipeline 102 can slide on the inner wall of the mounting groove 202.

Please refer to fig. 1 and fig. 3, the inner wall of the fixing block 203 is provided with an internal thread, the external thread of the fixing screw 206 is attached to the internal thread of the fixing block 203, so that the fixing screw 206 rotates to drive the fixing block 203 to displace, the outer wall of the rotating ring 204 is provided with gear teeth, the tooth space of the fixing gear 207 is engaged with the gear teeth of the rotating ring 204, so that the rotating ring 204 rotates to drive the fixing gear 207 to rotate.

Please refer to fig. 1 and fig. 3, the outer walls of the sliding block 302 and the connecting rod 304 are provided with tooth grooves, the connecting gear 303 is rotatably connected with the valve body 101, the teeth of the connecting gear 303 are engaged with the tooth grooves of the sliding block 302 and the connecting rod 304, so that the sliding block 302 is displaced to drive the connecting gear 303 to rotate, and the connecting gear 303 is rotated to drive the connecting rod 304 to displace.

Referring to fig. 1 and 3, the outer walls of the movable ring 305 and the sealing member 301 are provided with movable grooves, and the inner walls of the movable grooves are attached to the outer walls of the movable ring 305 and the sealing member 301, so that the movable ring 305 and the sealing member 301 can slide on the inner walls of the movable grooves.

The working principle of the utility model is as follows: firstly, when the valve body 101 and the pipeline 102 are connected, the pipeline 102 is inserted into the mounting groove 202 until the fixing block 203 contacts with the fixing groove 201, the fixing block 203 is displaced into the fixing groove 201 by the elastic force of the fixing spring 205 to fix the pipeline 102, when the valve body 101 and the pipeline 102 are separated, the rotating ring 204 is rotated to drive the fixing gear 207 to rotate, the fixing gear 207 is rotated to drive the fixing screw rod 206 to rotate, the fixing screw rod 206 is rotated to drive the fixing block 203 to displace, the fixing block 203 is displaced out of the fixing groove 201 to cancel the fixing of the pipeline 102, thereby facilitating the rapid installation and removal of the valve body 101 and the pipeline 102, when the valve body 101 and the pipeline 102 are connected, the pipeline 102 is inserted into the mounting groove 202, when the pipeline 102 is fixed, the fixing plate 208 contacts with the valve body 101, and the pipeline 102 is displaced to drive the sliding block 302, slider 302 displacement drives connecting gear 303 and rotates, and connecting gear 303 rotates and drives connecting rod 304 and carry out the displacement, and connecting rod 304 displacement drives activity ring 305 and carries out the displacement, and activity ring 305 displacement drives connecting spring 306 and takes place deformation, and connecting spring 306 deformation produces elasticity and promotes sealing member 301 and the laminating of fixed plate 208, is convenient for improve the leakproofness that valve body 101 and pipeline 102 are connected.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.

Claims

1. A check valve device in a high performance liquid chromatography flow path, comprising:

the main body (1) comprises a valve body (101) and a pipeline (102), wherein the pipeline (102) is connected to two ends of the valve body (101);

the mounting mechanism (2) comprises a fixing groove (201), a mounting groove (202) and a fixing block (203), wherein the fixing groove (201) is arranged on the outer wall of the pipeline (102), the mounting groove (202) is arranged at two ends of the valve body (101), and the fixing block (203) is connected to the inner wall of the mounting groove (202) in a sliding mode;

and a sealing mechanism (3) which is positioned inside the valve body (101) and seals the connection between the valve body (101) and the pipeline (102).

2. The check valve device in the high performance liquid chromatography flow path according to claim 1, wherein a rotating ring (204) is rotatably connected to the outer wall of the valve body (101), a fixed spring (205) is connected between the fixed block (203) and the valve body (101), a fixed screw rod (206) is connected to the inner wall of the fixed block (203), a fixed gear (207) is fixedly connected to one end of the fixed screw rod (206), and a fixed plate (208) is connected to the inner wall of the pipeline (102).

3. The check valve device in the high performance liquid chromatography flow path according to claim 1, wherein the sealing mechanism (3) comprises a sealing element (301) and a sliding block (302), the sealing element (301) is slidably connected to two ends of the valve body (101) and one side of the mounting groove (202), the sliding block (302) is slidably connected to one end of the inner wall of the mounting groove (202), the outer wall of the sliding block (302) is connected with a connecting gear (303), the outer wall of the connecting gear (303) is connected with a connecting rod (304), one end of the connecting rod (304) is fixedly connected with a movable ring (305), and a connecting spring (306) is connected between the movable ring (305) and the sealing element (301).

4. The check valve device in the high performance liquid chromatography flow path according to claim 1, wherein the inner wall of the fixing groove (201) is attached to the outer wall of a fixing block (203), one end of the fixing block (203) is an inclined surface, and the outer wall of the pipeline (102) is attached to the inner wall of the mounting groove (202).

5. The check valve device in the high performance liquid chromatography flow path according to claim 2, wherein the inner wall of the fixed block (203) is provided with an internal thread, the external thread of the fixed screw rod (206) is attached to the internal thread of the fixed block (203), the outer wall of the rotating ring (204) is provided with gear teeth, and the tooth grooves of the fixed gear (207) are meshed with the gear teeth of the rotating ring (204).

6. The check valve device in the high performance liquid chromatography flow path is characterized in that the outer walls of the sliding block (302) and the connecting rod (304) are provided with tooth grooves, the connecting gear (303) is rotationally connected with the valve body (101), and the tooth teeth of the connecting gear (303) are meshed with the tooth grooves of the sliding block (302) and the connecting rod (304).

7. The check valve device in the high performance liquid chromatography flow path according to claim 3, wherein the outer walls of the movable ring (305) and the sealing member (301) are provided with movable grooves, and the inner walls of the movable grooves are attached to the outer walls of the movable ring (305) and the sealing member (301).