CN219016212U

CN219016212U - Anti-pollution device for detector of high performance liquid chromatograph

Info

Publication number: CN219016212U
Application number: CN202223315699.XU
Authority: CN
Inventors: 毕春晖; 徐泽锋
Original assignee: Hangzhou Carrying Test Information Technology Co ltd
Current assignee: Hangzhou Carrying Test Information Technology Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-05-12
Anticipated expiration: 2032-12-08

Abstract

The utility model discloses an anti-pollution device for a detector of a high performance liquid chromatograph, which comprises a liquid inlet pipeline and a liquid outlet head, wherein the liquid inlet pipeline is connected with the liquid outlet head through a device main body, a filter element is arranged between the liquid outlet head and the device main body, a connecting cylinder is fixedly connected to one side of the device main body facing the liquid outlet head, a connecting column is fixedly connected to the position of the liquid outlet head corresponding to the connecting cylinder, the connecting cylinder is fixedly connected with the connecting column in a threaded connection manner, the filter element is positioned in the connecting cylinder, the connecting cylinder is sealed by the connecting column, and the filter element is limited in the connecting cylinder. According to the utility model, the anti-pollution device is arranged, and the sample entering the detector of the liquid chromatograph is filtered, so that the error of a detection result and possible damage to the detector caused by mechanical impurities carried in the sample entering the detector are effectively avoided.

Description

Anti-pollution device for detector of high performance liquid chromatograph

Technical Field

The utility model relates to the technical field of biochemical substance analysis and detection instruments, in particular to an anti-pollution device for a detector of a high performance liquid chromatograph.

Background

Liquid chromatographs are classified into liquid-liquid chromatography (LLC) and liquid-color fixation (LSC) depending on whether the stationary phase is liquid or solid. The modern liquid chromatograph consists of a high-pressure infusion pump, a sample injection system, a temperature control system, a chromatographic column, a detector, a signal recording system and the like. Compared with the classical liquid phase chromatographic device, the device has the characteristics of high efficiency, rapidness, sensitivity and the like. The system consists of a liquid storage device, a pump, a sample injector, a chromatographic column, a detector, a recorder and the like. The mobile phase in the liquid storage device is pumped into the system by a high-pressure pump, the sample solution enters the mobile phase through the sample injector, the mobile phase is loaded into the chromatographic column (stationary phase), and as each component in the sample solution has different distribution coefficients in two phases, the components are separated into single components which sequentially flow out of the column after the distribution processes of adsorption-desorption are repeated for a plurality of times when the components are in relative motion in the two phases, and the concentration of the sample is converted into an electric signal and transmitted to the recorder when the electric signal passes through the detector, and the data are printed in a pattern form. However, the existing liquid chromatograph has the defects that the detector is difficult to switch in the use process, the observation and the operation control are inconvenient, and the humidity around the detector is large, so that the service life of the device is influenced.

In the use process of the existing liquid chromatograph, for example, when detecting different articles, different detectors need to be selected and determined according to the properties of a sample to be detected, and the detector is quite complicated and troublesome when being replaced, so that the working efficiency of the liquid chromatograph is reduced.

In the patent specification CN 207571086U, a detector switching device for a liquid chromatograph is disclosed, in which the above-mentioned problems are solved, but no filtering means are provided at the sample inlet, so that some mechanical impurities existing in the sample are easy to enter the detector together with the sample, which not only easily causes errors of detection results, but also may directly damage the detector. Therefore, it is necessary to provide an anti-contamination device for a liquid chromatograph detector to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide an anti-pollution device for a detector of a high performance liquid chromatograph, which solves the problems encountered in the actual use.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a high performance liquid chromatograph detector anti-pollution device, includes feed liquor pipeline and goes out the liquid head, connect through the device main part between feed liquor pipeline and the liquid head, and be provided with the filter core between liquid head and the device main part, filter the sample that enters into in the liquid chromatograph detector through the filter core to prevent that mechanical impurity in the sample from entering into the detector and causing the pollution, thereby improve the work effect of detector, the device main part is towards one side fixedly connected with connecting cylinder of liquid head, goes out the position fixedly connected with spliced pole that corresponds the connecting cylinder on the liquid head, through threaded connection's mode fixed connection between connecting cylinder and the spliced pole, and the filter core is located the connecting cylinder, seals the connecting cylinder by the spliced pole, restricts the filter core in the connecting cylinder.

Preferably: the inner diameter of the connecting cylinder is the same as the outer diameter of the connecting column.

Preferably: the filter core includes filter head, filtration post and filtration pore, and filter head and filtration post integrated into one piece, the filtration pore has been seted up to the one end that the filter head was kept away from to the filtration post, and the filter core is whole to be formed by the sponge preparation, and the filter head is arranged in the cavity that connecting cylinder and spliced pole formed, and the filtration post inserts in the liquid flow channel in the device main part, can improve the holding capacity to impurity to a certain extent through the filtration pore that sets up to reduce the change frequency of filter core, extension filter core's life.

Preferably: the clamping surfaces are symmetrically arranged on the outer wall of the device main body, the liquid outlet head is fixedly connected with the rotating nut, after the device main body and the liquid outlet head are screwed together, the clamping surfaces are clamped by the pliers, and the rotating nut is rotated by the wrench, so that the device main body and the liquid outlet head can be screwed tightly, and the tightness between the device main body and the liquid outlet head is improved.

Preferably: the device body is towards the one end fixedly connected with pipeline joint of feed liquor pipeline, pipeline joint orientation feed liquor pipeline's side and first spring one end fixedly connected with rand, the other end fixedly connected with collar of first spring, the tip fixedly connected with of feed liquor pipeline connect the hard tube, connect the hard tube insert in the pipeline joint and with pipeline joint sliding connection, offered the ring channel on the outer wall of connecting the hard tube, the rand card is fixed together with connecting the hard tube in the ring channel.

Preferably: the clamping ring comprises two semicircular clamping blocks, the two semicircular clamping blocks are oppositely arranged to form a circular ring, the inner diameter of the circular ring is identical to the diameter of the annular groove, the semicircular clamping blocks are clamped in the annular groove after being mutually combined, one end of each clamping block is hinged through a pin, the other end of each clamping block is fixedly connected with a convex block, one of the convex blocks on each clamping block is rotationally connected with a rotating frame through the pin, the sliding blocks are connected with one end of each rotating frame in a sliding manner, the other end of each pull rod extends out of the rotating frame and is fixedly connected with a handle, the sliding blocks are sleeved with one end of a second spring on the pull rod, the other end of each second spring is fixedly connected with the rotating frame, the top surface of each convex block of the other clamping block is provided with a clamping groove, one side of each clamping block, which faces the first spring, of each connecting ring is fixedly connected with the first spring.

Preferably: the inner diameter of the connecting ring is the same as the outer diameter of the connecting hard pipe.

It should be noted that, when the rotating frame rotates to vertical state, press the draw-in groove with the slider under the effect of second spring to detain two fixture blocks together, and when needs are opened the fixture block, only need through the handle pulling pull rod, and drive the slider break away from with the draw-in groove can, easy operation is convenient, convenient assembly anti-pollution device.

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

according to the utility model, the sample entering the detector of the liquid chromatograph is filtered through the arrangement of the anti-pollution device, so that the error of a detection result and the possible damage to the detector caused by mechanical impurities carried in the sample entering the detector are effectively avoided, in addition, the anti-pollution device is high in tightness, the filter element is convenient to replace, and the working difficulty of staff is reduced.

Drawings

Fig. 1 is a schematic structural view of a detector anti-pollution device of a high performance liquid chromatograph.

Fig. 2 is an exploded view of a high performance liquid chromatograph detector contamination prevention device.

Fig. 3 is a schematic structural view of a collar in a high performance liquid chromatograph detector anti-contamination device.

Fig. 4 is a schematic structural diagram of a filter element in a high performance liquid chromatograph detector anti-pollution device.

Fig. 5 is a schematic view of the structure between the pipe joint and the liquid outlet head in the anti-pollution device of the detector of the high performance liquid chromatograph.

As shown in the figure: 1. a liquid inlet pipe; 2. a pipe joint; 3. a device body; 4. a liquid outlet head; 5. a first spring; 6. a collar; 61. a clamping block; 62. a rotating frame; 63. a slide block; 64. a handle; 65. a pull rod; 66. a second spring; 67. a clamping groove; 68. a connecting ring; 7. connecting a hard pipe; 8. an annular groove; 9. a filter element; 91. a filter head; 92. a filter column; 93. filtering holes; 10. a clamping surface; 11. a connecting cylinder; 12. a connecting column; 13. the nut is turned.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1 to 5, in an embodiment of the utility model, an anti-pollution device for a detector of a high performance liquid chromatograph comprises a liquid inlet pipeline 1 and a liquid outlet head 4, wherein the liquid inlet pipeline 1 and the liquid outlet head 4 are connected through a device main body 3, a filter element 9 is arranged between the liquid outlet head 4 and the device main body 3, a sample entering the detector of the liquid chromatograph is filtered through the filter element 9, so that mechanical impurities in the sample are prevented from entering the detector to cause pollution, the working effect of the detector is improved, a connecting cylinder 11 is fixedly connected to one side of the device main body 3 facing the liquid outlet head 4, a connecting column 12 is fixedly connected to the position, corresponding to the connecting cylinder 11, of the liquid outlet head 4, the connecting cylinder 11 is fixedly connected with the connecting column 12 in a threaded connection mode, the filter element 9 is positioned in the connecting cylinder 11, the connecting cylinder 11 is sealed by the connecting column 12, and the filter element 9 is limited in the connecting cylinder 11.

The inner diameter of the connecting cylinder 11 is the same as the outer diameter of the connecting column 12.

The filter core 9 includes filter head 91, filter column 92 and filtration pore 93, filter head 91 and filter column 92 integrated into one piece, the filtration pore 93 has been seted up to the one end that filter head 91 was kept away from to filter column 92, filter core 9 wholly is made by the sponge, filter head 91 is arranged in the cavity that connecting cylinder 11 and spliced pole 12 formed, filter column 92 inserts in the liquid flow channel in the device main part 3, can improve the holding capacity to impurity to a certain extent through the filtration pore 93 that sets up, thereby reduce the change frequency of filter core, the life of extension filter core.

The clamping surface 10 is symmetrically arranged on the outer wall of the device main body 3, the liquid outlet head 4 is fixedly connected with the rotating nut 13, after the device main body 3 and the liquid outlet head 4 are screwed together, the clamping surface 10 is clamped by pliers, and the rotating nut 13 is rotated by a wrench, so that the device main body 3 and the liquid outlet head 4 can be screwed tightly, and the tightness between the device main body 3 and the liquid outlet head 4 is improved.

The device body 3 is towards the one end fixedly connected with pipeline joint 2 of feed liquor pipeline 1, pipeline joint 2 is towards the side of feed liquor pipeline 1 and the one end fixed connection of first spring 5, the other end fixedly connected with rand 6 of first spring 5, the tip fixedly connected with of feed liquor pipeline 1 connects hard tube 7, connect hard tube 7 insert pipeline joint 2 in and with pipeline joint 2 sliding connection, annular channel 8 has been seted up on the outer wall of connecting hard tube 7, rand 6 card is fixed together with connecting hard tube 7 in the annular channel 8.

The clamping ring 6 comprises two semicircular clamping blocks 61, the two semicircular clamping blocks 61 are oppositely arranged to form a circular ring, the inner diameter of the circular ring is identical to the diameter of the annular groove 8, the semicircular clamping blocks 61 are clamped in the annular groove 8 after being combined, one end of each clamping block 61 is hinged through a pin, the other end of each clamping block 61 is fixedly connected with a protruding block, the protruding block on one clamping block 61 is rotationally connected with a rotating frame 62 through a pin, a sliding block 63 is slidably connected in the rotating frame 62, the sliding block 63 is fixedly connected with one end of a pull rod 65, the other end of the pull rod 65 extends out of the rotating frame 62 and is fixedly connected with a handle 64, the sliding block 63 is fixedly connected with one end of a second spring 66 sleeved on the pull rod 65, the other end of the second spring 66 is fixedly connected with the rotating frame 62, a clamping groove 67 is formed in the top surface of the protruding block of the other clamping block 61, one side of the clamping block 61, which faces the first spring 5, is fixedly connected with a connecting ring 68, and the connecting ring 68 is fixedly connected with the first spring 5.

The inner diameter of the connecting ring 68 is the same as the outer diameter of the connecting hard tube 7.

It should be noted that, when the rotating frame 62 rotates to the vertical state, the sliding block 63 is pressed into the clamping groove 67 under the action of the second spring 66, so that the two clamping blocks 61 are buckled together, and when the clamping blocks 61 are required to be opened, the pull rod 65 is pulled only by the handle 64, and the sliding block 63 is driven to be separated from the clamping groove 67, so that the anti-pollution device is easy and convenient to operate and convenient to assemble.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a high performance liquid chromatograph detector anti-pollution device, includes feed liquor pipeline (1) and goes out liquid head (4), its characterized in that, connect through device main part (3) between feed liquor pipeline (1) and the liquid head (4), and be provided with filter core (9) between liquid head (4) and device main part (3), one side fixedly connected with connecting cylinder (11) of device main part (3) towards going out liquid head (4), the position fixedly connected with spliced pole (12) of corresponding connecting cylinder (11) on going out liquid head (4), through threaded connection's mode fixed connection between connecting cylinder (11) and spliced pole (12), and filter core (9) are located connecting cylinder (11), seal connecting cylinder (11) by spliced pole (12), restrict filter core (9) in connecting cylinder (11).

2. The high performance liquid chromatograph detector contamination prevention device according to claim 1, wherein an inner diameter of the connecting cylinder (11) and an outer diameter of the connecting column (12) are the same.

3. The anti-pollution device for the detector of the high performance liquid chromatograph according to claim 1, wherein the filter element (9) comprises a filter head (91), a filter column (92) and a filter hole (93), the filter head (91) and the filter column (92) are integrally formed, the filter hole (93) is formed at one end, far away from the filter head (91), of the filter column (92), the filter head (91) is located in a cavity formed by the connecting cylinder (11) and the connecting column (12), and the filter column (92) is inserted into a liquid flow channel in the device main body (3).

4. The anti-pollution device for the detector of the high performance liquid chromatograph according to claim 1, wherein the outer wall of the device main body (3) is symmetrically provided with clamping surfaces (10), and the liquid outlet head (4) is fixedly connected with a rotating nut (13).

5. The anti-pollution device for the detector of the high performance liquid chromatograph according to claim 1, wherein the device main body (3) is fixedly connected with a pipeline joint (2) towards one end of the liquid inlet pipeline (1), the side surface of the pipeline joint (2) towards the liquid inlet pipeline (1) is fixedly connected with one end of the first spring (5), the other end of the first spring (5) is fixedly connected with a clamping ring (6), the end part of the liquid inlet pipeline (1) is fixedly connected with a connecting hard pipe (7), the connecting hard pipe (7) is inserted into the pipeline joint (2) and is in sliding connection with the pipeline joint (2), an annular groove (8) is formed in the outer wall of the connecting hard pipe (7), and the clamping ring (6) is clamped into the annular groove (8) and is fixed with the connecting hard pipe (7).

6. The anti-pollution device for the detector of the high performance liquid chromatograph according to claim 5, wherein the clamping ring (6) comprises two semicircular clamping blocks (61), the two semicircular clamping blocks (61) are oppositely arranged to form a circular ring, the inner diameter of the circular ring is the same as the diameter of the annular groove (8), the semicircular clamping blocks (61) are clamped in the annular groove (8) after being mutually combined, one end of each clamping block (61) is hinged through a pin, the other end of each clamping block (61) is fixedly connected with a lug, one lug on one clamping block (61) is rotatably connected with a rotating frame (62) through the pin, a sliding block (63) is slidably connected in the rotating frame (62), the sliding block (63) is fixedly connected with one end of a pull rod (65), the other end of the pull rod (65) extends out of the rotating frame (62) to be fixedly connected with a handle (64), the sliding block (63) is fixedly connected with one end of a second spring (66) sleeved on the pull rod (65), the other end of the second spring (66) is fixedly connected with the rotating frame (62), the top surface of the other clamping block (61) is provided with a clamping groove (67), and the first spring (68) is fixedly connected with one side of the first spring (5).

7. The high performance liquid chromatograph detector contamination prevention device according to claim 6, wherein the inner diameter of the connection ring (68) is the same as the outer diameter of the connection hard tube (7).