Liquid chromatograph infusion tube positioning structure

Abstract

The utility model relates to the field of infusion tube positioning, especially a liquid chromatograph infusion tube positioning structure, including the bottom plate, the top outer wall center place of bottom plate is welded with semicircle board, and the top outer wall of bottom plate is located and is set up rotary groove at semicircle board both sides, the bottom plate is located and is connected with fixed structure of rotary groove center place rotation, fixed structure includes the support rod of rotary connection in rotary groove center place, the fixed plate of welding in support rod one end outer wall, set up in the sliding hole of fixed plate outer wall four corners place, the sliding rod of inserting in sliding hole inner wall, set up in the thread hole of sliding rod center place and the thread rod of screwing in thread hole inner wall, the utility model discloses the bolt from the angle hole and the insertion hole, when support rod sliding connection is in semicircle board outer wall, and support rod passes through the insertion hole cooperation angle hole on semicircle board and adjusts the angle of fixed plate and conveying pipe, and the angle of conveying pipe is adjusted, and it is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of infusion tube positioning technology, and in particular to a positioning structure for an infusion tube of a liquid chromatograph. Background Technology

[0002] A liquid chromatograph is an instrument that uses the difference in the distribution ratio of a mixture between a liquid and a solid or between two immiscible liquids to separate the mixture first, and then analyze and identify it. The liquid delivery tube of a liquid chromatograph is an important component of a liquid chromatograph, mainly used to deliver the mobile phase to ensure that the sample is effectively separated and analyzed in the chromatographic column. When using the infusion tubing in the instrument, some tubing needs to be fixed in order to facilitate the delivery of liquid due to the different lengths of the tubing. However, the current fixing structure simply fixes the tubing, making it inconvenient to adjust the angle during delivery. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned problems and shortcomings by proposing a positioning structure for the infusion tube of a liquid chromatograph: the pin is inserted into the insertion hole and the angle hole, at which point the support rod is slidably connected to the outer wall of the semicircular plate. The support rod adjusts the angle of the fixing plate and the infusion tube through the insertion hole and the angle hole on the semicircular plate, making it convenient to adjust the angle of the infusion tube and easy to use, thus solving the problem of inconvenient angle adjustment.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A positioning structure for a liquid chromatograph infusion tube includes a base plate. A semi-circular plate is welded to the center of the top outer wall of the base plate, and a rotating groove is formed on both sides of the semi-circular plate on the top outer wall of the base plate. A fixing structure is rotatably connected to the base plate at the center of the rotating groove. The fixing structure includes a support rod rotatably connected to the center of the rotating groove, a fixing plate welded to the outer wall of one end of the support rod, sliding holes formed at the four corners of the outer wall of the fixing plate, a sliding rod inserted into the inner wall of the sliding hole, a threaded hole formed at the center of the sliding rod, and a threaded rod threaded into the inner wall of the threaded hole.

[0005] Preferably, a groove is provided at the center of the top outer wall of the fixing plate, and a fixing plate is rotatably connected to the bottom outer wall of the threaded rod. An arc groove is provided on the bottom outer wall of the fixing plate, and a knob is welded to the top outer wall of the threaded rod. Insert the pin into the insertion hole and the angle hole. At this time, the support rod is slidably connected to the outer wall of the semicircular plate. The support rod adjusts the angle of the fixing plate and the conveying pipe through the insertion hole and the angle hole on the semicircular plate, which facilitates the adjustment of the angle of the conveying pipe and makes it easy to use.

[0006] Preferably, the outer wall of the sliding rod is provided with a threaded groove, and a fastening nut is threadedly connected to the sliding rod at the threaded groove, and an insertion hole is provided on the outer wall of one end of the support rod.

[0007] Preferably, the bottom outer wall of the base plate has an arc-shaped fixing groove 1, and the base plate is fixed with Velcro straps at both ends of the fixing groove 1. The top outer wall of the base plate has a fixing groove 2 at both ends, and the base plate has a mounting hole at the fixing groove 2.

[0008] Preferably, the outer wall of the semicircular plate has equidistant angled holes at the insertion hole, and pins are inserted into the angled holes and the insertion hole.

[0009] Preferably, the outer wall of the support rod is slidably connected to the outer walls of both sides of the semicircular plate.

[0010] The beneficial effects of this utility model are as follows: Insert the pin into the insertion hole and the angle hole. At this time, the support rod is slidably connected to the outer wall of the semicircular plate. The support rod adjusts the angle of the fixing plate and the conveying pipe through the insertion hole and the angle hole on the semicircular plate, which facilitates the adjustment of the angle of the conveying pipe, making it easy to use and easy to position. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the liquid chromatograph infusion tube positioning structure proposed in this utility model; Figure 2 This is a schematic diagram of the unfolded structure of the fixing plate of the liquid chromatograph infusion tube positioning structure proposed in this utility model; Figure 3 This is a schematic diagram of a semi-circular plate structure for positioning the infusion tube of a liquid chromatograph proposed in this utility model.

[0012] In the diagram: 1. Base plate, 2. Semicircular plate, 3. Rotating groove, 4. Fixing structure, 5. Fixing groove one, 6. Velcro strap, 7. Fixing groove two, 8. Mounting hole, 9. Support rod, 10. Fixing plate, 11. Sliding hole, 12. Sliding rod, 13. Threaded hole, 14. Fastening nut, 15. Threaded rod, 16. Fixing plate, 17. Wire groove, 18. Angle hole, 19. Insertion hole, 20. Pin. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Example: Reference Figure 1-3A liquid chromatograph infusion tube positioning structure includes a base plate 1, a semi-circular plate 2 welded to the center of the top outer wall of the base plate 1, and a rotating groove 3 opened on both sides of the top outer wall of the base plate 1 at the semi-circular plate 2. A fixing structure 4 is rotatably connected to the base plate 1 at the center of the rotating groove 3. The fixed structure 4 includes a support rod 9 rotatably connected to the center of the rotating groove 3, a fixed plate 10 welded to the outer wall of one end of the support rod 9, sliding holes 11 opened at the four corners of the outer wall of the fixed plate 10, a sliding rod 12 inserted into the inner wall of the sliding hole 11, a threaded hole 13 opened at the center of the sliding rod 12, and a threaded rod 15 threadedly connected to the inner wall of the threaded hole 13. The fastening nut 14 is screwed to the outer wall of the sliding rod 12 at the bottom of the fixed plate 10. The sliding rod 12 and the threaded rod 15 fix the conveying pipe on the fixed plate 10, which facilitates the fixing of the conveying pipe and the fixing of conveying pipes of different sizes.

[0015] A groove 17 is provided at the center of the top outer wall of the fixing plate 10, and a fixing plate 16 is rotatably connected to the bottom outer wall of the threaded rod 15. An arc groove is provided on the bottom outer wall of the fixing plate 16, and a knob is welded to the top outer wall of the threaded rod 15.

[0016] The outer wall of the sliding rod 12 is provided with a threaded groove, and the sliding rod 12 is threadedly connected to a fastening nut 14 at the threaded groove. One end of the support rod 9 is provided with a plug hole 19 on its outer wall.

[0017] The bottom outer wall of the base plate 1 has an arc-shaped fixing groove 5, and the base plate 1 is fixed with Velcro straps 6 at both ends of the fixing groove 5. The top outer wall of the base plate 1 has a fixing groove 7 at both ends, and the base plate 1 has mounting holes 8 at the fixing groove 7. The base plate 1 is fixed to the tubular object through the fixing groove 5 and the Velcro straps 6. The mounting holes 8 on the fixing groove 7 are used with screws to fix the base plate 1 to the flat object, which is convenient for installation and use.

[0018] The outer wall of the semicircular plate 2 has equidistantly distributed angle holes 18 at the insertion hole 19, and pins 20 are inserted into the angle holes 18 and the insertion hole 19. When the pins 20 are inserted into the insertion hole 19 and the angle holes 18, the support rod 9 is slidably connected to the outer wall of the semicircular plate 2. The support rod 9 adjusts the angle of the fixed plate 10 and the conveying pipe through the insertion hole 19 and the angle holes 18 on the semicircular plate 2, which facilitates the adjustment of the angle of the conveying pipe.

[0019] The outer wall of the support rod 9 is slidably connected to the outer walls of both sides of the semicircular plate 2.

[0020] Working principle: In use, remove the fastening nut 14 on the sliding rod 12, remove the sliding rod 12 upwards from the fixed plate 10, place the conveying pipe in the groove 17 at the top of the fixed plate 10, and rotate the threaded rod 15 by the knob to lower the fixed plate 10 in the sliding rod 12, insert the sliding rod 12 into the sliding hole 11, and the outer wall of the fixed plate 16 contacts the outer wall of the conveying pipe. Screw the fastening nut 14 onto the outer wall of the sliding rod 12 at the bottom of the fixed plate 10. The sliding rod 12 and the threaded rod 15 fix the conveying pipe on the fixed plate 10. This facilitates the fixing of the conveying pipe, and also facilitates the fixing of conveying pipes of different sizes. The pin 20 is inserted into the insertion hole 19 and the angle hole 18. At this time, the support rod 9 is slidably connected to the outer wall of the semicircular plate 2. The support rod 9 adjusts the angle of the fixing plate 10 and the conveying pipe through the insertion hole 19 and the angle hole 18 on the semicircular plate 2, which facilitates the adjustment of the angle of the conveying pipe. The base plate 1 is fixed to the pipe object through the fixing groove 1 5 and the Velcro strap 6. The mounting hole 8 on the fixing groove 2 7 is used with screws to fix the base plate 1 to the flat object, which is convenient for installation and use.

[0021] The exemplary embodiments of the present invention have been described in detail herein with reference to examples. However, those skilled in the art will understand that various modifications and alterations can be made to the specific embodiments described above without departing from the spirit of the present invention, and various combinations can be made to the various technical features and structures proposed in the present invention without exceeding the protection scope of the present invention, which is determined by the appended claims. The foregoing description of specific exemplary embodiments of the present invention is not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical applications, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A liquid chromatograph infusion tube positioning structure comprising a base plate (1), characterized in that, A semi-circular plate (2) is welded to the center of the top outer wall of the base plate (1), and a rotating groove (3) is provided on both sides of the semi-circular plate (2) on the top outer wall of the base plate (1). A fixed structure (4) is rotatably connected to the center of the rotating groove (3) of the base plate (1). The fixed structure (4) includes a support rod (9) rotatably connected to the center of the rotating groove (3), a fixed plate (10) welded to the outer wall of one end of the support rod (9), sliding holes (11) opened at the four corners of the outer wall of the fixed plate (10), a sliding rod (12) inserted into the inner wall of the sliding hole (11), a threaded hole (13) opened at the center of the sliding rod (12), and a threaded rod (15) threadedly connected to the inner wall of the threaded hole (13).

2. The liquid chromatograph fluidic tube positioning structure of claim 1, wherein, The top outer wall of the fixed plate (10) is provided with a groove (17), and the bottom outer wall of the threaded rod (15) is rotatably connected to a fixed plate (16). The bottom outer wall of the fixed plate (16) is provided with an arc groove, and the top outer wall of the threaded rod (15) is welded with a knob.

3. The liquid chromatograph fluidic tube positioning structure of claim 1, wherein, The outer wall of the sliding rod (12) is provided with a threaded groove, and the sliding rod (12) is threadedly connected to a fastening nut (14) at the threaded groove. One end of the support rod (9) is provided with a plug hole (19).

4. The liquid chromatograph infusion tube positioning structure according to claim 1, characterized in that, The bottom outer wall of the base plate (1) is provided with an arc-shaped fixing groove 1 (5), and the base plate (1) is fixed with Velcro tape (6) at both ends of the fixing groove 1 (5). The top outer wall of the base plate (1) is provided with a fixing groove 2 (7), and the base plate (1) is provided with a mounting hole (8) at the fixing groove 2 (7).

5. The liquid chromatograph fluidic tube positioning structure of claim 1, wherein, The outer wall of the semicircular plate (2) is provided with equidistant angle holes (18) at the insertion hole (19), and pins (20) are inserted in the angle holes (18) and the insertion hole (19).

6. The liquid chromatograph fluidic tube positioning structure of claim 1, wherein, The outer wall of the support rod (9) is slidably connected to the outer walls of both sides of the semicircular plate (2).

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