Tool for testing sample injection volume of straight tower type sample injector

Abstract

The invention discloses a straight tower type sample injector sample injection volume testing tool, and relates to the technical field of analytical instrument accessories, and the technical scheme is that the straight tower type sample injector sample injection volume testing tool comprises a testing bottom plate, a straight tower type sample injector is arranged on the upper portion of the testing bottom plate, a sample bottle can be sampled through the straight tower type sample injector, and fixing mechanisms are symmetrically arranged on the two sides of the straight tower type sample injector. A worker can rotate the limiting plate according to the position of the straight tower type sample injector, the positions of the two ends of the electric telescopic rod can be limited by adjusting the position of the limiting plate when the electric telescopic rod rotates, and the rotating head and tail of the electric telescopic rod are arranged in the straight tower type sample injector and on the upper portion of the weighing table. According to the straight tower type sample injector, the clamping mechanism can clamp a sample bottle in the straight tower type sample injector effectively and conveniently, after the straight tower type sample injector completes sampling, the rotating mechanism drives the electric telescopic rod to rotate, after the electric telescopic rod rotates to make contact with the limiting plate, the clamping mechanism just moves to the position above the sampling bottle, and the positioning effect of the clamping mechanism is effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of analytical instrument accessories, and in particular to a straight tower type injector injection volume testing tool. Background Art

[0002] The vertical tower injector injection volume test tool is a practical tool developed in the field of analytical chemistry to improve the efficiency and accuracy of injection volume testing. With the widespread application of analytical instruments in scientific research, environmental monitoring, food safety and other fields, the performance requirements for injectors are increasing. Traditional testing methods have problems such as large system errors and cumbersome operations, and it is difficult to meet the needs of high-efficiency testing. Therefore, the vertical tower injector injection volume test tool came into being. It positions and fixes the injector and sample bottle through a specific tooling form, which effectively improves the test efficiency. This tool provides a good auxiliary role in the development, design and iteration of analytical instruments, and has positive significance for the development of the field of analytical chemistry.

[0003] After searching, the Chinese patent number CN218272142U discloses a straight tower injector injection volume test fixture, which uses the fixture to position and fix the straight tower injector and the sample bottle of the simulated injection port, thereby improving the efficiency of the straight tower injector injection volume test and eliminating the influence of system errors on the test results as much as possible. It provides a good auxiliary role in the development, design and iteration of the sample pretreatment system of the analytical instrument, indirectly helps to improve the performance of the analytical instrument, and provides assistance to the development of the field of analytical chemistry. Compared with the prior art, the Chinese patent number CN218272142U solves the problem that the injection port of the existing equipment is deep, and it is difficult to remove the sample bottle after each action of the injector; secondly, the placement of the sample bottle is not fixed, which is easy to conflict with the action of the injector.

[0004] However, in actual use of the above device, personnel use tweezers to clamp the sample bottle and put it into the measuring equipment to measure the mass difference of the sample bottle before and after sampling to calculate the injection volume. However, after the sampler completes sampling, the sample bottle is located too deep and inconvenient to clamp. Moreover, during the whole process, personnel not only need to clamp the sample bottle, but also need to measure and record its mass difference, which is rather cumbersome and inconvenient for continuous operation. Therefore, a straight tower injector injection volume test tooling is proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art that personnel use tweezers to clamp the sample bottle and put it into a measuring device to measure the mass difference of the sample bottle before and after sampling to calculate the injection volume, but after the sampler completes sampling, the sample bottle is located too deep and inconvenient to clamp, and during the whole process, the personnel not only need to clamp the sample bottle, but also need to measure and record its mass difference, which is cumbersome and inconvenient for continuous operation, and a straight tower injector injection volume test tool is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A vertical tower sampler injection volume test tool comprises a test base plate, a vertical tower sampler is arranged on the upper part of the test base plate, a sample bottle can be sampled through the vertical tower sampler, fixing mechanisms are symmetrically arranged on both sides of the vertical tower sampler, the fixing mechanisms can fix the bottom of the vertical tower sampler, a cylinder is fixedly connected to the upper part of the test base plate, a rotating mechanism is arranged on the upper part of the cylinder, an electric telescopic rod is fixedly connected to the upper part of the rotating mechanism, and the electric telescopic rod can be driven to rotate by the rotating mechanism;

[0008] A clamping mechanism is provided at the front end of the electric telescopic rod, and the clamping mechanism can clamp the sample bottle that has completed sampling in the vertical tower sampler. A limiting mechanism is provided at the lower part of the rotating mechanism, and the rotation range of the electric telescopic rod can be limited by the limiting mechanism, and the rotating head and tail ends can be positioned in the vertical tower sampler and on the upper part of the weighing platform. The weighing platform is fixedly arranged on the upper part of the test bottom plate, and the mass of the sample bottle can be measured by the weighing platform.

[0009] The above technical solution further includes:

[0010] The fixing mechanism comprises a fixing shell fixedly connected to the upper part of the test base plate, a first motor is arranged on one side of the fixing shell, and a fixing component is arranged on the output end of the first motor.

[0011] The fixed component includes a screw rod arranged at the output end of the first motor, the screw rod is rotatably connected to the fixed shell, the screw rod is threadedly connected to a transmission member, the transmission member is slidably connected to the fixed shell, and the transmission member is fixedly connected to one side of the fixed shell with a fixing plate.

[0012] The limiting mechanism comprises a threaded rod fixedly connected to the upper part of the cylinder, a rotating shell fixedly connected to the top of the threaded rod, a locking disk threadedly connected to the bottom of the threaded rod, and two limiting plates are arranged between the rotating shell and the locking disk.

[0013] The front end of the limit plate is fixedly connected with a rubber pad, and the rubber pad can buffer the kinetic energy generated when the electric telescopic rod contacts the limit plate.

[0014] The rotating mechanism comprises a rotating shell fixedly connected to the upper part of the threaded rod, a third motor is arranged inside the rotating shell, and a rotating assembly is arranged at the output end of the third motor.

[0015] The rotating assembly includes a first gear disposed at the output end of the third motor, the first gear is meshedly connected with a second gear, the second gear is rotationally connected to a rotating housing, and the second gear is fixedly connected to an electric telescopic rod at a side away from the rotating housing.

[0016] The clamping mechanism comprises a clamping shell fixedly connected to the front end of the electric telescopic rod, a second motor is arranged at the lower part of the clamping shell, and a clamping assembly is arranged at the output end of the second motor.

[0017] The clamping assembly includes a rotating rod arranged at the output end of the second motor, the two sides of the rotating rod are symmetrically connected to connecting rods for rotation, the connecting rod is rotatably connected to a sliding block on a side away from the rotating rod, and the sliding block is slidably connected to the clamping shell.

[0018] A clamp is fixedly connected to the upper part of the sliding block, and a contact surface between the clamp and the sampling bottle is provided with anti-slip rubber.

[0019] The present invention has the following beneficial effects:

[0020] 1. In the present invention, when in use, personnel can rotate the limit plate according to the position of the vertical tower sampler. By adjusting the position of the limit plate, the positions of the two ends of the electric telescopic rod during rotation can be limited. The rotating head and tail of the electric telescopic rod are arranged inside the vertical tower sampler and on the upper part of the weighing platform, which effectively facilitates the clamping mechanism to clamp the sample bottle in the vertical tower sampler. When the vertical tower sampler completes sampling, the electric telescopic rod is driven to rotate by the rotating mechanism. When the electric telescopic rod rotates to contact with the limit plate, the clamping mechanism just moves to the top of the sampling bottle, which effectively ensures the positioning effect of the clamping mechanism. After the clamping mechanism clamps the sample bottle, the rotating mechanism is controlled to reverse. The electric telescopic rod can be positioned above the weighing platform through the second limit plate. It is convenient and quick, and the efficiency of continuous testing is effectively improved.

[0021] 2. In the present invention, before the test, the vertical tower sample injector can be placed on the upper part of the test base plate, and then the fixing mechanism can be started. The fixing plate can be driven to move by the fixing mechanism, and the vertical tower sample injector placed in the middle can be fixed by the relative movement of the fixing plates on both sides, which effectively ensures the stability during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of a straight tower type injector injection volume test tooling proposed by the present invention;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the first structure of the present invention;

[0025] Figure 4 It is a second structural schematic diagram of the present invention;

[0026] Figure 5 It is a schematic diagram of the third structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the fourth structure of the present invention;

[0028] Figure 7 It is a fifth structural schematic diagram of the present invention;

[0029] Figure 8 This is a sixth structural diagram of the present invention.

[0030] In the figure: 1. test base plate; 2. vertical tower sample injector; 3. fixed shell; 4. fixed plate; 5. weighing platform; 6. first motor; 7. screw; 8. transmission member; 9. cylinder; 10. electric telescopic rod; 11. clamping shell; 12. second motor; 13. clamp; 14. rotating rod; 15. connecting rod; 16. slider; 17. rotating shell; 18. limit plate; 19. third motor; 20. first gear; 21. second gear; 22. locking disk; 23. threaded rod; 24. rubber pad. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1

[0033] like Figure 1-Figure 8 As shown, a vertical tower sampler injection volume test tool proposed by the present invention comprises a test base plate 1, a vertical tower sampler 2 is arranged on the upper part of the test base plate 1, a sample bottle can be sampled through the vertical tower sampler 2, a fixing mechanism is symmetrically arranged on both sides of the vertical tower sampler 2, the fixing mechanism can fix the bottom of the vertical tower sampler 2, a cylinder 9 is fixedly connected to the upper part of the test base plate 1, a rotating mechanism is arranged on the upper part of the cylinder 9, an electric telescopic rod 10 is fixedly connected to the upper part of the rotating mechanism, and the electric telescopic rod 10 can be driven to rotate by the rotating mechanism;

[0034] A clamping mechanism is provided at the front end of the electric telescopic rod 10, which can clamp the sample bottle that has completed sampling in the vertical tower sampler 2. A limiting mechanism is provided at the lower part of the rotating mechanism, which can limit the rotation range of the electric telescopic rod 10 and position the rotating head and tail ends in the vertical tower sampler 2 and on the upper part of the weighing platform 5. The weighing platform 5 is fixedly arranged on the upper part of the test bottom plate 1, and the mass of the sample bottle can be measured by the weighing platform 5;

[0035] The limiting mechanism includes a threaded rod 23 fixedly connected to the upper part of the cylinder 9, the top of the threaded rod 23 is fixedly connected to the rotating housing 17, the bottom of the threaded rod 23 is threadedly connected to the locking plate 22, and two limiting plates 18 are arranged in the middle of the rotating housing 17 and the locking plate 22. The front end of the limiting plate 18 is fixedly connected to a rubber pad 24, and the kinetic energy generated when the electric telescopic rod 10 contacts the limiting plate 18 can be buffered by the rubber pad 24;

[0036] The rotating mechanism includes a rotating housing 17 fixedly connected to the upper part of the threaded rod 23, a third motor 19 is arranged inside the rotating housing 17, a rotating assembly is arranged at the output end of the third motor 19, and the rotating assembly includes a first gear 20 arranged at the output end of the third motor 19, the first gear 20 is meshedly connected with a second gear 21, the second gear 21 is rotationally connected to the rotating housing 17, and the second gear 21 is fixedly connected to the electric telescopic rod 10 on the side away from the rotating housing 17;

[0037] The clamping mechanism includes a clamping shell 11 fixedly connected to the front end of the electric telescopic rod 10, a second motor 12 is arranged at the lower part of the clamping shell 11, a clamping assembly is arranged at the output end of the second motor 12, and the clamping assembly includes a rotating rod 14 arranged at the output end of the second motor 12, connecting rods 15 are symmetrically connected to the rotating rod 14 on both sides, and a slider 16 is connected to the connecting rod 15 on the side away from the rotating rod 14, the slider 16 is slidably connected to the clamping shell 11, and a clamp 13 is fixedly connected to the upper part of the slider 16, and the contact surface between the clamp 13 and the sampling bottle is provided with anti-slip rubber.

[0038] In this embodiment, before use, the personnel can rotate the limit plate 18 according to the position of the vertical tower sampler 2, and limit the positions of the two ends of the electric telescopic rod 10 when rotating by adjusting the position of the limit plate 18, so that the rotating head and tail of the electric telescopic rod 10 can be set inside the vertical tower sampler 2 and on the upper part of the weighing platform 5, so that when the electric telescopic rod 10 rotates, it can effectively locate the sample bottle inside the vertical tower sampler 2. When the vertical tower sampler 2 completes sampling, the first gear 20 can be driven to rotate by starting the third motor 19. The rotation of the first gear 20 can drive the meshing second gear 21 to rotate, and the rotation of the second gear 21 can drive the upper fixed electric telescopic rod 10 to rotate. When the electric telescopic rod 10 rotates to contact the limit plate 18, the clamping mechanism just moves to the top of the sampling bottle, which effectively ensures the positioning effect of the clamping mechanism.

[0039] When the clamping mechanism moves to the top of the sample bottle, the cylinder 9 is started, and the clamping mechanism is driven to descend through the cylinder 9, and then the second motor 12 is started, and the rotating rod 14 can be driven to rotate through the second motor 12. The rotation of the rotating rod 14 can drive the connecting rods 15 arranged on both sides to rotate, and the rotation of the connecting rod 15 can drive the rotatably connected slider 16 to move, thereby driving the clamp 13 fixedly connected to the upper part of the slider 16 to close inward, thereby clamping the sample bottle. After clamping is completed, the cylinder 9 is started again to drive the sampling bottle to move upward, and then the third motor 19 is controlled to reverse, driving the electric telescopic rod 10 to rotate, and the electric telescopic rod 10 can be positioned above the weighing platform 5 through the second limit plate 18. Then, the sample bottle is moved down and the clamp is released, and the sample bottle can be transported to the weighing platform 5 to measure the mass. The injection volume of the vertical tower sampler 2 can be tested by measuring the mass of the sample bottle before and after sampling.

[0040] Embodiment 2

[0041] like Figure 1-Figure 8 As shown, the fixing mechanism includes a fixing housing 3 fixedly connected to the upper part of the test base plate 1, a first motor 6 is arranged on one side of the fixing housing 3, and a fixing component is arranged at the output end of the first motor 6;

[0042] The fixed component includes a screw rod 7 arranged at the output end of the first motor 6, the screw rod 7 is rotatably connected to the fixed shell 3, the screw rod 7 is threadedly connected to a transmission member 8, the transmission member 8 is slidably connected to the fixed shell 3, and the transmission member 8 is fixedly connected to a fixed plate 4 on one side of the fixed shell 3.

[0043] In this embodiment, before the test, the vertical tower sampler 2 can be placed on the upper part of the test base plate 1, and then the first motor 6 is started. The first motor 6 can drive the screw rod 7 to rotate, and the rotation of the screw rod 7 can drive the threaded transmission member 8 to move, and the movement of the transmission member 8 can drive the fixed plate 4 to move. By controlling the relative movement of the fixed plates 4 on both sides of the vertical tower sampler 2, the vertical tower sampler 2 placed in the middle can be fixed, thereby effectively ensuring the stability during the test.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical tower type injector injection volume test tool, comprising a test base plate (1), characterized in that: A vertical tower sample injector (2) is arranged on the upper part of the test base plate (1), and a sample bottle can be sampled through the vertical tower sample injector (2). Fixing mechanisms are symmetrically arranged on both sides of the vertical tower sample injector (2), and the fixing mechanisms can fix the bottom of the vertical tower sample injector (2). A cylinder (9) is fixedly connected to the upper part of the test base plate (1), and a rotating mechanism is arranged on the upper part of the cylinder (9). An electric telescopic rod (10) is fixedly connected to the upper part of the rotating mechanism, and the electric telescopic rod (10) can be driven to rotate by the rotating mechanism. The front end of the electric telescopic rod (10) is provided with a clamping mechanism, and the clamping mechanism can clamp the sample bottle that has completed sampling in the vertical tower sampler (2). The lower part of the rotating mechanism is provided with a limiting mechanism, and the rotation range of the electric telescopic rod (10) can be limited by the limiting mechanism, and the rotating head and tail ends are positioned in the vertical tower sampler (2) and on the upper part of the weighing platform (5). The weighing platform (5) is fixedly arranged on the upper part of the test bottom plate (1), and the mass of the sample bottle can be measured by the weighing platform (5).

2. The vertical tower type sampler injection volume test tool according to claim 1, characterized in that: The fixing mechanism comprises a fixing housing (3) fixedly connected to the upper part of the test base plate (1), a first motor (6) is arranged on one side of the fixing housing (3), and a fixing component is arranged at the output end of the first motor (6).

3. A straight tower type injector injection volume test tooling according to claim 2, characterized in that: The fixing assembly comprises a screw rod (7) arranged at the output end of the first motor (6), the screw rod (7) being rotatably connected to the fixing housing (3), the screw rod (7) being threadedly connected to a transmission member (8), the transmission member (8) being slidably connected to the fixing housing (3), and the transmission member (8) being fixedly connected to a fixing plate (4) on one side of the fixing housing (3).

4. The vertical tower type sampler injection volume test tool according to claim 1, characterized in that: The limiting mechanism comprises a threaded rod (23) fixedly connected to the upper part of the cylinder (9), the top of the threaded rod (23) is fixedly connected to a rotating shell (17), the bottom of the threaded rod (23) is threadedly connected to a locking disk (22), and two limiting plates (18) are arranged in the middle of the rotating shell (17) and the locking disk (22).

5. A vertical tower type sampler injection volume test tool according to claim 4, characterized in that: The front end of the limit plate (18) is fixedly connected to a rubber pad (24), and the rubber pad (24) can buffer the kinetic energy generated when the electric telescopic rod (10) contacts the limit plate (18).

6. The vertical tower type sampler injection volume test tool according to claim 1, characterized in that: The rotating mechanism comprises a rotating housing (17) fixedly connected to the upper part of the threaded rod (23), a third motor (19) is arranged inside the rotating housing (17), and a rotating assembly is arranged at the output end of the third motor (19).

7. The vertical tower type injector injection volume test tool according to claim 1, characterized in that: The rotating assembly comprises a first gear (20) arranged at the output end of a third motor (19); the first gear (20) is meshingly connected with a second gear (21); the second gear (21) is rotationally connected to a rotating housing (17); and the second gear (21) is fixedly connected to an electric telescopic rod (10) at a side away from the rotating housing (17).

8. The vertical tower type sampler injection volume test tool according to claim 1, characterized in that: The clamping mechanism comprises a clamping shell (11) fixedly connected to the front end of an electric telescopic rod (10), a second motor (12) is arranged at the lower part of the clamping shell (11), and a clamping assembly is arranged at the output end of the second motor (12).

9. A straight tower type injector injection volume test tool according to claim 8, characterized in that: The clamping assembly comprises a rotating rod (14) arranged at the output end of the second motor (12), the rotating rod (14) having connecting rods (15) symmetrically rotatably connected on both sides, the connecting rod (15) having a sliding block (16) rotatably connected on a side away from the rotating rod (14), and the sliding block (16) being slidably connected to the clamping housing (11).

10. The vertical tower type injector injection volume test tool according to claim 9, characterized in that: The upper part of the sliding block (16) is fixedly connected with a clamp (13), and the contact surface between the clamp (13) and the sampling bottle is provided with anti-slip rubber.

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