Gas standard substance distribution device

Abstract

The utility model relates to the technical field of gas standard substances, and discloses a gas standard substance distribution device which comprises a raw material gas cylinder, a standard gas cylinder, a vacuum pumping assembly, an electronic scale, a gas distribution control cabinet and an automatic taking and placing mechanism for automatically placing the standard gas cylinder on the electronic scale, a gas cylinder fixing assembly for fixing a gas cylinder to be matched with standard gas is arranged above the electronic scale; the raw material gas cylinder is communicated with the standard gas cylinder through a main pipeline, and the vacuum pumping assembly is communicated with the main pipeline; the automatic taking and placing mechanism comprises a support, a clamping assembly used for clamping the standard gas cylinder and a walking mechanism installed on the support and used for controlling the clamping assembly to walk in the X-axis direction, the Y-axis direction and the Z-axis direction. According to the utility model, the gas cylinder can be automatically fetched and released, fixed and prevented from toppling over, and the gas distribution efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas standard substance technical field, concretely relates to a gas standard substance gas distribution device. BACKGROUND

[0002] Gas standard substance is divided into binary, ternary and multivariate standard gas, and its preparation mainly has dynamic generation method and weighing method. The weighing method generally fills the gas cylinder with the gas of different kinds of raw materials of the determined quality through a gas distribution device, and the gas of different kinds is mixed in the gas cylinder to obtain the standard mixed gas of the target concentration. The existing gas distribution process is semi-automatic, and the worker needs to place the gas cylinder on the weighing platform, so that the gas cylinder cannot be automatically taken and placed and fixed, and the gas distribution efficiency is reduced. UTILITARY MODEL

[0003] The utility model aims at the above -mentioned problem, provides a kind of gas standard substance gas distribution device, can automatically take and place gas cylinder and fixed gas cylinder prevent gas cylinder to pour, improve gas distribution efficiency.

[0004] In order to realize the above-mentioned purpose, the technical scheme that the utility model adopts is as follows: a kind of gas standard substance gas distribution device, including raw material gas cylinder, standard gas cylinder, vacuum air extraction component, electronic scale, gas distribution control cabinet and the automatic taking and placing mechanism for placing standard gas cylinder on electronic scale automatically, the gas cylinder fixing assembly for fixing the standard gas cylinder to be prepared is located above electronic scale is equipped with;

[0005] The raw material gas cylinder is communicated with the standard gas cylinder by the quick connector on the main pipeline, the outlet of the raw material gas cylinder is equipped with the first stop valve, the inlet of the standard gas cylinder is connected with the second stop valve, the first vacuum gauge is equipped on the main pipeline, the vacuum air extraction component is communicated with the main pipeline, and the first stop valve, the second stop valve and the vacuum air extraction component are connected with the gas distribution control cabinet.

[0006] The automatic taking and placing mechanism includes a support, a clamping assembly for clamping the standard gas cylinder and a walking mechanism mounted on the support for controlling the clamping assembly to walk along the X-axis, Y-axis and Z-axis directions, the walking mechanism includes a Y-axis walking mechanism, an X-axis walking mechanism for driving the Y-axis walking mechanism to walk horizontally and a Z-axis walking mechanism vertically arranged on the Y-axis walking mechanism, the Z-axis walking mechanism is connected with a lifting mechanism, and the lifting mechanism is connected with the clamping assembly.

[0007] Further, the lifting mechanism includes an L-shaped frame, a fixed plate and a first cylinder, the L-shaped frame is downward and connected with the Z-axis walking mechanism, the first cylinder is fixed to the top of the L-shaped frame, and the telescopic end is connected with the fixed plate, and the fixed plate is slidingly connected with the L-shaped frame.

[0008] Further, the clamping assembly comprises two pairs of clamping plates arranged in upper and lower intervals and a bidirectional air cylinder for controlling the opening and closing of the two pairs of clamping plates, the bidirectional air cylinder is fixed to the bottom of the fixed plate, the clamping surface of the clamping plate is an arc surface structure matched with the gas cylinder, the upper and lower two clamping plates on the same side are connected through a vertical rod, the extension end of the bidirectional air cylinder is provided with a push plate, and the top end of the vertical rod is connected with the push plate.

[0009] Further, the gas cylinder fixing assembly comprises a semi-arc plate, pressing plates arranged on both sides of the semi-arc plate and a second air cylinder for controlling the pressing of the pressing plates, the semi-arc plate is connected with a vertical plate at the right end of the electronic scale, the second air cylinder is hingedly arranged at the outer end of the semi-arc plate, one end of the pressing plate is hingedly connected with the semi-arc plate, and the other end of the pressing plate is hingedly connected with the extension end of the second air cylinder.

[0010] Further, the vacuum air extraction assembly comprises a third stop valve, a second vacuum degree table and a vacuum pump, the vacuum pump is communicated with the main pipeline through a first branch pipeline, and the third stop valve and the second vacuum degree table are installed on the first branch pipeline.

[0011] Further, the main pipeline is further connected with a second branch pipeline, and the second branch pipeline is provided with an emptying valve.

[0012] By adopting the technical scheme, the gas standard substance gas blending device has the following beneficial effects:

[0013] The automatic taking and placing mechanism and the gas cylinder fixing assembly are arranged, the standard gas to be blended can be placed on a gas blending station by the automatic taking and placing mechanism, and the gas cylinder fixing assembly is used for automatically fixing the standard gas, so that the gas cylinder is prevented from being overturned during the gas blending process, the device can automatically take and place the gas cylinder and fix the gas cylinder to prevent the gas cylinder from being overturned, and the gas blending efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the gas standard substance gas blending device of the utility model;

[0015] Figure 2 It is a structural schematic view of the gas standard substance gas blending device of the utility model; Figure 1 It is a sectional view of A-A plane of the utility model;

[0016] Figure 3 It is a structural schematic view of the clamping assembly of the utility model;

[0017] Figure 4 It is a structural schematic view of the gas cylinder fixing assembly of the utility model;

[0018] In the figure: 1 - raw gas cylinder, 2 - standard gas cylinder, 3 - main pipeline, 31 - first stop valve, 32 - second stop valve, 33 - first vacuum gauge, 4 - gas distribution control cabinet, 5 - vacuum pumping assembly, 51 - vacuum pump, 52 - second vacuum gauge, 53 - third stop valve, 54 - first branch pipeline, 6 - second branch pipeline, 7 - electronic scale, 71 - vertical stand plate, 8 - cylinder fixing assembly, 81 - semicircular plate, 82 - pressing plate, 83 - second air cylinder, 9 - support, 10 - X-axis walking mechanism, 11 - Y-axis walking mechanism, 12 - Z-axis walking mechanism, 13 - lifting mechanism, 131 - first air cylinder, 132 - L-shaped frame, 133 - fixed plate, 14 - clamping assembly, 141 - clamping plate, 142 - vertical rod, 143 - push plate, 144 - bidirectional air cylinder. DETAILED DESCRIPTION

[0019] In order to make the personnel in the technical field better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Unless otherwise defined, all the technical and scientific terms used in the present application have the same meanings as those commonly understood by the person skilled in the art belonging to the technical field of the present application. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The terms "first", "second", and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish different objects, and are not used to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0020] In this document, the term "embodiment" means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor is it independent or alternative to other embodiments. The person skilled in the art explicitly and implicitly understands that the embodiments described herein can be combined with other embodiments.

[0021] As Figure 1 And Figure 2As shown in the figure, a gas standard substance gas distribution device includes a raw gas cylinder 1, a standard gas cylinder 2, a vacuum pumping assembly 5, an electronic scale 7, a gas distribution control cabinet 4, and an automatic taking and placing mechanism for automatically placing the standard gas cylinder 2 on the electronic scale. A cylinder fixing assembly 8 for fixing the standard gas cylinder to be distributed is arranged above the electronic scale. The raw gas cylinder 1 is communicated with the standard gas cylinder 2 through a main pipeline 3. The outlet of the raw gas cylinder 1 is provided with a first stop valve 31, and the inlet of the standard gas cylinder 2 is connected with a second stop valve 32. A first vacuum gauge 33 is arranged on the main pipeline 3. The raw gas cylinder 1 is communicated with the standard gas cylinder 2 through a quick connector on the main pipeline 3. The first stop valve 31, the second stop valve 32, and the vacuum pumping assembly 5 are connected with the gas distribution control cabinet 4. The automatic taking and placing mechanism includes a support 9, a clamping assembly for clamping the standard gas cylinder 2, and a walking mechanism mounted on the support 9 for controlling the clamping assembly to walk along the X-axis, Y-axis, and Z-axis directions. The walking mechanism includes a Y-axis walking mechanism 11, an X-axis walking mechanism 10 for driving the Y-axis walking mechanism 11 to walk horizontally, and a Z-axis walking mechanism 12 vertically arranged on the Y-axis walking mechanism 11. A lifting mechanism 13 is connected to the Z-axis walking mechanism 12, and the clamping assembly 14 is connected to the lifting mechanism 13. The X-axis walking mechanism 10, the Y-axis walking mechanism 11, and the Z-axis walking mechanism 12 all adopt a lead screw mechanism, which is a prior art and will not be described here.

[0022] As shown in the figure, Figure 1 The lifting mechanism 13 includes an L-shaped frame 132, a fixed plate 133, and a first gas cylinder 131. The L-shaped frame 132 is downwardly directed and connected with the Z-axis walking mechanism 12. The first gas cylinder 131 is fixed to the top of the L-shaped frame 132, and its telescopic end is connected with the fixed plate 133. The fixed plate 133 is slidingly connected with the L-shaped frame 132. The lifting mechanism 13 can further expand the up-down movement range of the cylinder by the telescopic movement of the first gas cylinder 131.

[0023] As shown in the figure, Figure 3 The clamping assembly 14 includes two pairs of clamping plates 141 arranged in an up-down interval and a double-acting gas cylinder 144 for controlling the horizontal opening and closing of the two pairs of clamping plates 141. The double-acting gas cylinder 144 is fixed to the bottom of the fixed plate 133. The clamping surface of the clamping plate 141 is an arc surface structure matched with the cylinder. The two clamping plates 141 on the same side are connected by a vertical rod 142. The telescopic end of the double-acting gas cylinder 144 is provided with a push plate 143, and the top end of the vertical rod 142 is connected with the push plate 143. The telescopic movement of the double-acting gas cylinder 144 can drive the two pairs of clamping plates 141 to open and close, facilitating the clamping of the cylinder.

[0024] As shown in the figure, Figure 4As shown, the gas cylinder fixing assembly 8 includes a semi-circular plate 81, clamping plates 82 disposed on both sides of the semi-circular plate 81, and a second cylinder 83 for controlling the clamping of the clamping plates 82. The semi-circular plate 81 is connected to the vertical plate 71 at the right end of the electronic scale 7. The second cylinder 83 is hinged to the outer end of the semi-circular plate 81. One end of the clamping plate 82 is hinged to the semi-circular plate 81, and the other end of the clamping plate 82 is hinged to the telescopic end of the second cylinder 83. The telescopic movement of the second cylinder 83 controls the opening and closing of the two pairs of clamping plates 82 to clamp the standard gas cylinder 2.

[0025] like Figure 1 As shown, the vacuum pumping assembly 5 includes a third shut-off valve 53, a second vacuum gauge 52, and a vacuum pump 51. The vacuum pump 51 is connected to the main pipeline via a first branch pipe. The third shut-off valve 53 and the second vacuum gauge 52 are installed on the first branch pipe 54. A second branch pipe 6 is also connected to the main pipeline, and an air vent valve is installed on the second branch pipe 6.

[0026] In use, multiple standard gas cylinders 2 are arranged below the traveling mechanism. The X-axis traveling mechanism 10 and the Y-axis traveling mechanism 11 drive the clamping assembly 14 to move along the X and Y directions to above the standard gas cylinder 2 to be clamped. Then, the Y-axis traveling mechanism 11 drives the clamping assembly 14 to move downward. The first cylinder 131 further pushes the clamping assembly 14 downward to both sides of the standard gas cylinder 2. Then, the bidirectional cylinder 144 retracts, clamping the standard gas cylinder 2. Then, the lifting mechanism 13 and the Z-axis traveling mechanism 12 operate, lifting the clamped standard gas cylinder 2 and placing it on the electronic scale 7. Then, the second cylinder 83 extends and retracts to control the pressing plate 82 to press the gas cylinder, preventing the gas cylinder from tipping over during the gas mixing process. After the standard gas cylinder 2 is fixed, the quick connector connects to the standard gas cylinder 2, and the control buttons on the gas mixing control cabinet 4 control the operation of each valve to perform gas mixing. After the gas mixing is completed, the automatic pick-and-place mechanism operates to return the mixed standard gas cylinder 2 to its original position before mixing the next standard gas cylinder 2. This utility model can automatically pick up and place gas cylinders and fix them to prevent them from tipping over, thereby improving gas mixing efficiency.

[0027] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A gas standard substance mixing device, characterized in that: It includes raw material gas cylinders, standard gas cylinders, vacuum pumping components, electronic scales, gas distribution control cabinets, and an automatic pick-and-place mechanism for automatically placing standard gas cylinders on the electronic scales. Above the electronic scales is a cylinder fixing component for fixing the standard gas cylinders to be dispensed. The raw material gas cylinder is connected to the standard gas cylinder via a quick connector on the main pipeline. The outlet of the raw material gas cylinder is equipped with a first shut-off valve, and the inlet of the standard gas cylinder is connected with a second shut-off valve. The main pipeline is equipped with a first vacuum gauge, and the vacuum pumping assembly is connected to the main pipeline. The first shut-off valve, the second shut-off valve, and the vacuum pumping assembly are all connected to the gas distribution control cabinet. The automatic pick-and-place mechanism includes a bracket, a clamping assembly for holding a standard gas cylinder, and a traveling mechanism mounted on the bracket for controlling the movement of the clamping assembly along the X-axis, Y-axis, and Z-axis. The traveling mechanism includes a Y-axis traveling mechanism, an X-axis traveling mechanism that drives the Y-axis traveling mechanism to move laterally, and a Z-axis traveling mechanism vertically mounted on the Y-axis traveling mechanism. A lifting mechanism is connected to the Z-axis traveling mechanism, and the clamping assembly is connected to the lifting mechanism.

2. The gas standard substance mixing device according to claim 1, characterized in that: The lifting mechanism includes an L-shaped frame, a fixed plate, and a first cylinder. The L-shaped frame faces downward and is connected to the Z-axis traveling mechanism. The first cylinder is fixed to the top of the L-shaped frame, and its telescopic end is connected to the fixed plate. The fixed plate is slidably connected to the L-shaped frame.

3. The gas standard substance mixing device according to claim 2, characterized in that: The clamping assembly includes two pairs of clamping plates spaced apart vertically and a bidirectional cylinder that controls the horizontal opening and closing of the two pairs of clamping plates. The bidirectional cylinder is fixed to the bottom of the fixed plate. The clamping surface of the clamping plate is an arc-shaped structure that matches the gas cylinder. The two clamping plates on the same side are connected by a vertical rod. The telescopic end of the bidirectional cylinder is provided with a push plate, and the top of the vertical rod is connected to the push plate.

4. The gas standard substance mixing device according to claim 1, characterized in that: The gas cylinder fixing assembly includes a semi-arc plate, pressing plates on both sides of the semi-arc plate, and a second cylinder for controlling the pressing plates to press. The semi-arc plate is connected to a vertical plate on the right end of the electronic scale. The second cylinder is hinged to the outer end of the semi-arc plate. One end of the pressing plate is hinged to the semi-arc plate, and the other end of the pressing plate is hinged to the telescopic end of the second cylinder.

5. The gas standard substance mixing device according to claim 1, characterized in that: The vacuum pumping assembly includes a third shut-off valve, a second vacuum gauge, and a vacuum pump. The vacuum pump is connected to the main pipeline through a first branch pipeline, and the third shut-off valve and the second vacuum gauge are installed on the first branch pipeline.

6. The gas standard substance mixing device according to claim 1, characterized in that: The main pipeline is also connected to a second branch pipeline, which is equipped with a drain valve.

Images