Liquid raw material sampling device for gas preparation

Abstract

The utility model discloses a liquid raw material sample introduction device for gas preparation, which comprises an inflation bottle, the outer wall of the inflation bottle is communicated with a check valve, the outer wall of the check valve is communicated with a liquid inlet pipeline, the outer wall of the liquid inlet pipeline is communicated with a metering assembly, the side wall of the liquid inlet pipeline is communicated with a syringe, and the side wall of the syringe is communicated with a sampling assembly. The machining assembly comprises a synchronous assembly arranged outside the liquid inlet pipeline, an adjusting assembly is arranged on the outer side of the synchronous assembly, when the flow of liquid raw materials needs to be adjusted, a threaded rod is rotated, and due to the fact that a sleeve block and the outer wall of a limiting rod are arranged in a sliding mode, under the limitation of the threaded rod, the flow of the liquid raw materials can be adjusted. The rotating threaded rod can drive the sleeve block to move, the sleeve block drives the rack to move along with the sleeve block, the gear meshed with the rack rotates along with the sleeve block, the gear drives the connecting rod to rotate, and the connecting rod drives the cross block and the rotating cylinder to rotate, so that the liquid flow is adjusted synchronously.

Description

Technical Field

[0001] The utility model relates to the technical field of gas preparation, in particular to a liquid raw material sampling device for gas preparation. Background Technique

[0002] The liquid raw material sampling device for gas preparation is a device used to accurately measure and transport liquid raw materials to a reaction vessel or analysis equipment during gas analysis or preparation. These devices usually include various components, such as a liquid storage tank, a weighing device, a sampler, a control system, etc., to ensure that the liquid raw material can be accurately added to the gas stream.

[0003] As disclosed in a liquid raw material sampling device for standard gas preparation in Chinese Patent CN207973499U, by shaking the rocker, the connecting rod is driven to rotate, thereby driving each gear on the connecting rod to rotate, making the gear drive the rack to translate forward, pushing the piston in the syringe barrel inward, so that the piston presses the liquid raw material in each syringe barrel into the liquid inlet pipe. Along with the liquid inlet pipe, it enters the check valve and then into the bottle mouth. By accurately measuring the liquid and pressing it into the gas filling bottle at one time, injecting the raw material at one time not only greatly improves the work efficiency, but also will not cause liquid backflow under the action of the check valve, greatly increasing the accuracy during the preparation of standard gas.

[0004] For this structure, although it can perform the sampling work on the liquid raw material, when adjusting the sampling flow rate, it needs to be adjusted one by one separately, which is inconvenient to operate. Therefore, we propose a liquid raw material sampling device for gas preparation that can synchronously adjust the flow rate to make the adjustment more convenient. Content of the Utility Model

[0005] The purpose of the utility model is to provide a liquid raw material sampling device for gas preparation to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A liquid raw material sampling device for gas preparation, including a gas filling bottle, a check valve is communicated with the outer wall of the gas filling bottle, a liquid inlet pipe is communicated with the outer wall of the check valve, a metering component is communicated with the outer wall of the liquid inlet pipe, a syringe barrel is communicated with the side wall of the liquid inlet pipe, and a processing component is arranged outside the liquid inlet pipe. The processing component includes a synchronization component arranged outside the liquid inlet pipe, and an adjustment component is arranged outside the synchronization component.

[0007] Preferably, the synchronization component includes a rotating cylinder rotatably connected to the outer wall of the metering component. A cross groove is formed inside the rotating cylinder. A cross block is slidably arranged inside the cross groove. A connecting rod is fixedly installed on the side wall of the cross block. A first spring is sleeved on the outer wall of the connecting rod. A gear is fixedly installed at the end of the connecting rod. The gear meshes with a rack. A sleeve block is fixedly installed at the end of the rack. A threaded rod is sleeved inside the sleeve block. A support block is rotatably connected to the outer wall of the threaded rod. A limiting rod is fixedly installed inside the support block.

[0008] Preferably, the adjusting component includes a toothed rod slidably arranged inside the syringe barrel. The toothed rod meshes with a toothed roller. The end of the toothed roller is rotatably connected to a bracket. A sliding rod is slidably arranged inside the bracket. A second spring is sleeved on the outer wall of the sliding rod. A fixed block is fixedly installed at the end of the sliding rod.

[0009] Preferably, the sleeve block and the limiting rod are slidably arranged on the outer wall. The rack meshes with the gear. When the threaded rod rotates, under the restriction of the limiting rod, the sleeve block and the rack can be driven to move, so that the gear can rotate.

[0010] Preferably, the connecting rod is rotatably connected to the rotating cylinder and is slidably arranged inside the rotating cylinder. Under its restriction, by sliding the cross block and the cross groove, the connecting rod can drive the rotating cylinder to rotate. And pulling the connecting rod can make the gear disengage from the rack and make the rotating cylinder rotate to achieve the purpose of independent adjustment.

[0011] Preferably, one end of the second spring is fixedly installed at the bottom of the bracket, and the end of the second spring away from the bottom of the bracket is fixedly installed at the end of the sliding rod away from the fixed block. Under the elastic action of the second spring, the toothed roller and the toothed rod can be engaged.

[0012] Preferably, the number of the brackets is two, which are symmetrically distributed with respect to the center line of the toothed roller. Under the support of the brackets, the toothed roller can rotate stably.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. The liquid raw material sampling device for gas preparation has a synchronization component as one of its parts. When adjusting the flow rate of the liquid raw material, rotate the threaded rod. Since the sleeve block is slidably arranged on the outer wall of the limiting rod, under its restriction, the rotating threaded rod can drive the sleeve block to move, causing the sleeve block to drive the rack to move accordingly. The gear meshing with the rack rotates, the gear drives the connecting rod to rotate, and the connecting rod drives the cross block and the rotating cylinder to rotate, so as to synchronously adjust the liquid flow rate. When independent and precise flow rate adjustment is required, pull the gear, causing the gear to drive the connecting rod and the cross block to slide inside the cross groove and compress the first spring sleeved on the outer wall of the connecting rod, so that the gear no longer meshes with the rack. At this time, rotate the gear, and the cross block and the rotating cylinder can be driven by the connecting rod to rotate, so as to independently adjust the flow rate. When the flow rate of each metering component needs to be the same, the flow rate can be synchronously adjusted through this structure (the gas filling cylinder, check valve, liquid inlet pipe, metering component, and syringe are publicly available technologies in the comparative document, so their structures are not fully described in this case).

[0015] 2. The liquid raw material sampling device for gas preparation has an adjustment component as one of its parts. When feeding liquid, rotate the toothed roller, causing the toothed roller to drive the toothed rod to move for liquid feeding work. When independent liquid feeding is required, press the toothed roller downward, causing the bracket rotatably connected to the end of the toothed roller to slide on the outer wall of the sliding rod and compress the second spring sleeved on the outer wall of the sliding rod, so that the toothed roller no longer meshes with the toothed rod. Then the toothed rod can be independently pulled for liquid feeding work. When synchronous liquid feeding is required, release the toothed roller. Under the action of the elasticity of the second spring, the toothed roller is pushed upward, causing the toothed roller to mesh with the toothed rod for synchronous liquid feeding work. Description of the Drawings

[0016] Figure 1 It is a three-dimensional external view of the structure of the present utility model.

[0017] Figure 2 It is a three-dimensional sectional view of the structure of the present utility model.

[0018] Figure 3 It is a diagram of the synchronization component of the structure of the present utility model.

[0019] Figure 4 It is a partial schematic diagram of the synchronization component of the structure of the present utility model.

[0020] Figure 5 It is a diagram of the adjustment component of the structure of the present utility model.

[0021] Figure 6 It is a partial schematic diagram of the adjustment component of the structure of the present utility model.

[0022] In the figure: 1. Inflatable bottle; 2. Check valve; 3. Liquid inlet pipe; 4. Processing assembly; 5. Metering assembly; 6. Syringe; 41. Synchronization assembly; 43. Adjustment assembly; 411. Rotary cylinder; 412. Cross slot; 413. Cross block; 414. Connecting rod; 415. First spring; 416. Gear; 417. Rack; 418. Sleeve block; 419. Threaded rod; 420. Limiting rod; 421. Support block; 431. Tooth rod; 432. Tooth roller; 433. Bracket; 434. Slide bar; 435. Second spring; 436. Fixed block. Detailed implementation manners

[0023] For a clearer understanding of the technical features, objectives, and effects of the present utility model, the specific implementation manners of the present utility model will now be described with reference to the accompanying drawings.

[0024] Embodiment 1

[0025] A preferred embodiment of a liquid raw material sampling device for gas preparation provided by the present utility model is as Figures 1 to 6 shown: A liquid raw material sampling device for gas preparation includes an inflatable bottle 1;

[0026] A check valve 2 is communicatively connected to the outer wall of the inflatable bottle 1;

[0027] A liquid inlet pipe 3 is communicatively connected to the outer wall of the check valve 2;

[0028] A metering assembly 5 is communicatively connected to the outer wall of the liquid inlet pipe 3;

[0029] A syringe 6 is communicatively connected to the side wall of the liquid inlet pipe 3;

[0030] And a processing assembly 4 provided outside the liquid inlet pipe 3. The processing assembly 4 includes a synchronization assembly 41 provided outside the liquid inlet pipe 3. The synchronization assembly 41 includes a rotary cylinder 411 rotatably connected to the outer wall of the metering assembly 5. A cross slot 412 is provided inside the rotary cylinder 411. A cross block 413 is slidably provided inside the cross slot 412. A connecting rod 414 is fixedly installed on the side wall of the cross block 413. A first spring 415 is sleeved on the outer wall of the connecting rod 414. A gear 416 is fixedly installed at the end of the connecting rod 414. The gear 416 meshes with a rack 417. A sleeve block 418 is fixedly installed at the end of the rack 417. A threaded rod 419 is sleeved inside the sleeve block 418. The outer wall of the threaded rod 419 is rotatably connected to a support block 421. A limiting rod 420 is fixedly installed inside the support block 421.

[0031] In this embodiment, when it is necessary to adjust the flow rate of the liquid raw material, the threaded rod 419 is rotated. Since the sleeve block 418 is slidably arranged on the outer wall of the limiting rod 420, under its limitation, the rotated threaded rod 419 can drive the sleeve block 418 to move, so that the sleeve block 418 drives the rack 417 to move accordingly. The gear 416 meshing with the rack 417 rotates accordingly. The gear 416 drives the connecting rod 414 to rotate, and the connecting rod 414 drives the cross block 413 and the rotating cylinder 411 to rotate, so as to synchronously adjust the liquid flow rate. When it is necessary to independently and precisely adjust the flow rate, the gear 416 is pulled, so that the gear 416 drives the connecting rod 414 and the cross block 413 to slide inside the cross groove 412, and the first spring 415 sleeved on the outer wall of the connecting rod 414 is compressed, so that the gear 416 no longer meshes with the rack 417. At this time, when the gear 416 is rotated, the cross block 413 and the rotating cylinder 411 can be driven by the connecting rod 414 to rotate, so as to independently adjust the flow rate. When it is necessary to make the flow rate of each metering component 5 consistent, the flow rate can be synchronously adjusted through this structure (the inflatable bottle 1, the check valve 2, the liquid inlet pipe 3, the metering component 5, and the syringe 6 are the prior art disclosed in the comparative document, so their structures are not fully described in this case).

[0032] Further, the sleeve block 418 is slidably arranged on the outer wall of the limiting rod 420, and the rack 417 meshes with the gear 416. When the threaded rod 419 rotates, under the limitation of the limiting rod 420, the sleeve block 418 and the rack 417 can be driven to move, so that the gear 416 can rotate.

[0033] Furthermore, the connecting rod 414 is rotatably connected to the rotating cylinder 411, and the connecting rod 414 is slidably arranged inside the rotating cylinder 411. Under its limitation, by sliding the cross block 413 and the cross groove 412, the connecting rod 414 can drive the rotating cylinder 411 to rotate, and pulling the connecting rod 414 can make the gear 416 not mesh with the rack 417 and make the rotating cylinder 411 rotate, so as to achieve the purpose of independent adjustment.

[0034] Embodiment 2

[0035] On the basis of Embodiment 1, a preferred embodiment of the liquid raw material sampling device for gas preparation provided by the present utility model is as follows Figures 1 to 6 shown: The adjusting assembly 43 includes a toothed rod 431 slidably arranged inside the syringe 6. The toothed rod 431 meshes with a toothed roller 432. The end of the toothed roller 432 is rotatably connected to a bracket 433. A slide rod 434 is slidably arranged inside the bracket 433. A second spring 435 is sleeved on the outer wall of the slide rod 434. A fixed block 436 is fixedly installed at the end of the slide rod 434.

[0036] In this embodiment, when liquid needs to be fed in, the toothed roller 432 is rotated to drive the toothed rod 431 to move for the liquid feeding operation. When independent liquid feeding is required, the toothed roller 432 is pressed downward, so that the bracket 433 rotatably connected to the end of the toothed roller 432 slides on the outer wall of the slide rod 434, and the second spring 435 sleeved on the outer wall of the slide rod 434 is compressed, so that the toothed roller 432 is no longer engaged with the toothed rod 431. Then the toothed rod 431 can be pulled independently for the liquid feeding operation. When synchronous liquid feeding is required, the toothed roller 432 is released. Under the elastic action of the second spring 435, the toothed roller 432 is pushed upward to make the toothed roller 432 engaged with the toothed rod 431 for the synchronous liquid feeding operation.

[0037] Furthermore, one end of the second spring 435 is fixedly installed at the bottom of the bracket 433, and the other end of the second spring 435 away from the bottom of the bracket 433 is fixedly installed at the end of the slide rod 434 away from the fixed block 436. Under the elastic action of the second spring 435, the toothed roller 432 can be engaged with the toothed rod 431.

[0038] In addition, the number of the brackets 433 is two, symmetrically distributed with respect to the center line of the toothed roller 432. Supported by the brackets 433, the toothed roller 432 can rotate stably.

[0039] The above is only a schematic specific embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention. It should be noted that the components of the present invention are not limited to the above overall application. Each technical feature described in the specification of the present invention can be selected and used alone according to actual needs or selected and combined in multiple items. Therefore, the present invention should logically cover other combinations and specific applications related to the inventive points of this case.

Claims

1. A liquid raw material sampling device for gas preparation, comprising a gas filling bottle (1); The outer wall of the gas-filled bottle (1) is connected to a check valve (2); The outer wall of the check valve (2) is connected to a liquid inlet pipe (3); The outer wall of the liquid inlet pipe (3) is connected to a metering component (5); The side wall of the liquid inlet pipe (3) is connected to a syringe (6); and a processing assembly (4) arranged outside the liquid inlet pipeline (3), characterized in that: The processing component (4) comprises a synchronization component (41) arranged outside the liquid inlet pipeline (3), and an adjustment component (43) is arranged outside the synchronization component (41).

2. A liquid raw material sampling device for gas preparation according to claim 1, characterized in that: The synchronization component (41) comprises a rotary cylinder (411) rotatably connected to the outer wall of the metering component (5), a cross groove (412) is provided inside the rotary cylinder (411), a cross block (413) is slidably provided inside the cross groove (412), a connecting rod (414) is fixedly installed on the side wall of the cross block (413), a first spring (415) is sleeved on the outer wall of the connecting rod (414), a gear (416) is fixedly installed on the end of the connecting rod (414), the gear (416) is meshed with a rack (417), a sleeve block (418) is fixedly installed on the end of the rack (417), a threaded rod (419) is sleeved inside the sleeve block (418), a support block (421) is rotatably connected to the outer wall of the threaded rod (419), and a limit rod (420) is fixedly installed inside the support block (421).

3. A liquid raw material sampling device for gas preparation according to claim 1, characterized in that: The adjustment assembly (43) includes a gear rod (431) slidably arranged inside the injection barrel (6), the gear rod (431) is meshed with a gear roller (432), the end of the gear roller (432) is rotatably connected to a bracket (433), a slide rod (434) is slidably arranged inside the bracket (433), a second spring (435) is sleeved on the outer wall of the slide rod (434), and a fixed block (436) is fixedly installed at the end of the slide rod (434).

4. A liquid raw material sampling device for gas preparation according to claim 2, characterized in that: The sleeve block (418) is slidably arranged on the outer wall of the limiting rod (420), and the rack (417) is meshed with the gear (416).

5. A liquid raw material sampling device for gas preparation according to claim 2, characterized in that: The connecting rod (414) is rotatably connected to the rotary cylinder (411), and the connecting rod (414) is slidably arranged inside the rotary cylinder (411).

6. A liquid raw material sampling device for gas preparation according to claim 3, characterized in that: One end of the second spring (435) is fixedly mounted to the bottom of the bracket (433), and one end of the second spring (435) away from the bottom of the bracket (433) is fixedly mounted to one end of the slide rod (434) away from the fixing block (436).

7. A liquid raw material sampling device for gas preparation according to claim 3, characterized in that: There are two brackets (433) which are symmetrically distributed about the center line of the gear roller (432).

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